Industrie technik THS2 Series Room Controller Evolution Split Instruction Manual

: June 9, 2024
: industrie technik

Table of Contents

THS2 Series Room Controller Evolution Split
Product Information: Room Controller Evolution Split THS2
Product Usage Instructions:
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

THS2 Series Room Controller Evolution Split

Product Information: Room Controller Evolution Split THS2

Series

The Room Controller Evolution Split THS2 Series is a highly
advanced and versatile HVAC controller designed for regulating
heating, cooling, and ventilation systems in various environments
such as hotels, offices, hospitals, and residential buildings. Some
of the key technical features of the THS2 series are:

THS2 Display unit (optional)
THS2-0MM Remote unit
Internal and External Modbus network connectivity
Regulation sensor for temperature control
Automatic season changeover with water sensor
Working setpoint, economy, and unoccupied holidays mode
3-point valve and mixed-use valve controls
Supplemental modulating and on/off battery functions
Pump and CO2-based damper control
Dehumidifier and fan coil unit with EC motor support

Product Usage Instructions:

Before using the Room Controller Evolution Split THS2 Series, it
is important to read the instruction manual carefully and
understand the features and functionalities of the controller.
Follow these steps to use the THS2 series:

Mount the THS2 display unit at an appropriate location for easy
visibility and accessibility.
Connect the THS2-0MM remote unit to the controller using an
internal or external Modbus network.
If necessary, connect optional THS2 devices to the
controller.
Configure the temperature regulation batteries and
heating/cooling battery logic based on the type of HVAC system
being used. Refer to the instruction manual for detailed
instructions.
If using a 3-point valve or mixed-use valve, set the
appropriate regulation mode based on the HVAC system being
used.
If using a supplemental battery function for modulating or
on/off control, configure the setup based on the requirements of
the HVAC system.
If using a pump or CO2-based damper, follow the instruction
manual to configure the proper settings.
If using a dehumidifier or fan coil unit with an EC motor,
configure the controller for automatic speed control logic based on
heating or cooling mode.
Test the controller and make any necessary adjustments to
ensure optimal performance.

It is important to regularly check and maintain the THS2 series
to ensure proper functionality and efficiency of the HVAC system.
Refer to the instruction manual for maintenance instructions and
troubleshooting tips.

INSTRUCTION MANUAL
ROOM CONTROLLER EVOLUTION SPLIT THS2 SERIES

27/08/2021 Rev. 1.0.4

INDEX

1. Technical features ………………………………………………………………………………………………..6

Display unit: THS2 (optional)

Remote unit: THS2-0MM

2. Internal Modbus network………………………………………………………………………………………7

3. External Modbus network……………………………………………………………………………………..8

4. Optional THS2 connection …………………………………………………………………………………. 10

5. THS2-0MM connected to THS2 and supervisor contemporaneously ……………………. 12

6. Regulation sensor ……………………………………………………………………………………………… 13

7. ON/OFF function on THS2-0MM………………………………………………………………………….. 16

8. Logic of digital and analogue inputs THS2-0MM …………………………………………………. 16

Digital slave inputs DI1 and DI2

Analogue slave inputs

9. Automatic season changeover with water sensor……………………………………………….. 20

10. Working setpoint, economy and unoccupied holidays mode ………………………………. 21

11. Temperature regulation batteries ……………………………………………………………………….. 24

12. Heating and cooling battery logic……………………………………………………………………….. 26

2-pipe HEATING regulation (I01=0)

2-pipe COOLING regulation (I01=0) without mid-season changeover (M13=0)

2-pipe COOLING regulation (I01=0) with mid-season changeover (M13=1)

4-pipe regulation (I01=1)

13. 3-point valve ……………………………………………………………………………………………………… 32

3-point, 2-pipe HEATING regulation (I01=0)

3-point, 2-pipe COOLING regulation (I01=0)

3-point, 4-pipe regulation (I01=1)

14. Mixed-use valve…………………………………………………………………………………………………. 34

15. Supplemental battery logics ………………………………………………………………………………. 35

Supplemental modulating battery function:

Supplemental on/off battery function:

16. Pump ………………………………………………………………………………………………………………… 36

17. CO2-based damper regulation ……………………………………………………………………………. 36

Use of modulating damper:

Use of on/off damper:

18. Dehumidifier ……………………………………………………………………………………………………… 38

Use of a modulating dehumidifier:

Use of an on/off dehumidifier:

19. Fan coil unit with EC motor………………………………………………………………………………… 40

Automatic speed control logic for EC motor with on/off outputs in heating mode

Automatic speed control logic for EC motor with on/off outputs in cooling mode

Automatic speed control logic for EC motor with 0..10 V or 3-point outputs in heating mode

Automatic speed control logic for EC motor with 0..10 V or 3-point outputs in cooling mode

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20. Fan coil unit with 3-speed on/off motor ……………………………………………………………… 44

Automatic speed control logic for 3-speed on/off motors with 0..10 V or 3-point outputs in heating

mode

Automatic speed control logic for 3-speed on/off motors with 0..10 V or 3-point cooling outputs 45

Automatic speed control logic for 3-speed on/off motors with on/off outputs in heating mode

Automatic speed control logic for 3-speed on/off motors with on/off outputs in cooling mode

21. Manual speeds and ventilation in the absence of regulation ……………………………….. 48

22. Fan boost ………………………………………………………………………………………………………….. 48

23. Minimum thermostat ………………………………………………………………………………………….. 48

24. Destratification cycle …………………………………………………………………………………………. 49 25. Window contact…………………………………………………………………………………………………. 49

26. Frost protection function of the heating battery ………………………………………………….. 49

27. Dirty filter ………………………………………………………………………………………………………….. 50 28. Summertime changeover …………………………………………………………………………………… 50

29. Remote setpoint variator ……………………………………………………………………………………. 51

30. Restoring default parameters …………………………………………………………………………….. 51

31. Optional THS2……………………………………………………………………………………………………. 52

32. Display, keypad and icons of THS2 …………………………………………………………………….. 52

33. Setting parameters using quick access on THS2 ………………………………………………… 54

Keypad lock

Global on/off

Setting the setpoint and offset setpoint

Fan operating mode

MODE key function

34. Timer extension or forced presence mode………………………………………………………….. 58

35. Setting DATE and TIME………………………………………………………………………………………. 59

36. Operation and setting of TIME BANDS ……………………………………………………………….. 60

37. Duplication of TIME BANDS ………………………………………………………………………………. 62

38. Alarms ………………………………………………………………………………………………………………. 63

Communication error counter parameters

Resetting of internal network communication error counter parameters

39. Setting configuration parameters (level 1 password)…………………………………………… 66

40. Setting setpoints parameters (level 2 password)…………………………………………………. 72

41. Setting THS2 parameters (level 3 password) ………………………………………………………. 74

42. Setting CN4 communication parameters (level 4 password)………………………………… 76

43. Logic of digital inputs THS2……………………………………………………………………………….. 77

Digital THS2 inputs DI1 and DI2

44. Input/output status of THS2-0MM connected to THS2 …………………………………………. 77

45. Display of THS2-0MM operating by THS2 connected …………………………………………… 80

46. Monitoring status internal network (from THS2)………………………………………………….. 81 47. Restoring default parameters …………………………………………………………………………….. 83

48. Firmware version display …………………………………………………………………………………… 84

49. USB connection…………………………………………………………………………………………………. 85

50. Jumper configuration ………………………………………………………………………………………… 86

51. Forcing digital and analogue slave inputs/outputs ……………………………………………… 87

Forcing outputs

Forcing inputs

52. THS2-0MM master Modbus variables………………………………………………………………….. 90

53. Electrical connections ……………………………………………………………………………………… 113

THS2-0MM unit connection

113

THS2 unit connection

116

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54. Networks connection diagram ………………………………………………………………………….. 117

Internal network connection diagram without supervisor on CN4

117

Internal network connection diagram with supervisor on CN4

117

External MODBUS network connection diagram with supervisor on CN5

119

Connection between optional THS2 to THS2-0MM

121

55. Dimensions ……………………………………………………………………………………………………… 122

THS2-0MM unit

122

THS2 unit

122

56. Installation requirements………………………………………………………………………………….. 123

THS2-0MM unit installation

124

THS2 unit installation

125

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1. Technical features

· Display unit: THS2 (optional)

Power supply:

5 Vdc provided by THS2-0MM

Ambient temperature:

0…50°C

Display:

LCD display with backlight

Inputs:

2 potential-free contacts SELV (limit of voltage: 5 Vdc)

USB for configuration and software update

Communication:

external network

Dimensions:

128 x 80 x 28.5 mm

Installation:

wall mounting

Protection class:

CE compliance standards:

EN 60730-1

· Remote unit: THS2-0MM
Power supply: Power consumption: Ambient temperature: Inputs:
Outputs:
Connections: Communication:
Dimensions: Protection class: Mode of operation: Rated impulse voltage: Control pollution degree: Low voltage directive LVD: CE compliance standards:

110…240 Vac, 50/60 Hz max 1.1 W (3.5 VA) THS2-0MM (with THS2 connected) 0…40°C 2 potential-free contacts SELV (limit of voltage: 4 Vdc) 2 NTC10K sensors USB for software update 3 analogue outputs 0-10 V (RL >10K) 5 SPST 240 Vac relays. K1 K2 K3 combined total 3 A (AC1), K5 K6 each 1 A (AC1) 1 SPST 240 Vac, 10 A (AC1) relay K4 max. cross-selectional area 1.5 mm2 (flexible cord conductors) one external network Modbus RTU (slave) for BMS, configuration or display. One internal network for connection up to 15 units. 140 x 121,5 x 47 mm 2 type 1 2.5 kV 2 EN 60730-1 EN 60730-1

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2. Internal Modbus network

The internal Modbus network consists of: – a master unit which allows the operating parameters of each slave and the master itself to be set – 1 to 14 slave units: the parameter M20 is the sum of the number of slaves and master unit (on the example below M20=15) – an optional humidity and CO2 transmitter whose presence is defined by parameter M21.

CN5
MASTER SLAVE SLAVE SLAVE

THS2-0MM

M +

Int Adr = 1

–

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

Int Adr = 2

CN4

GND

+ M

THS2-0MM

Int Adr = 3

CN4

GND

+ M

THS2-0MM

Int Adr = 15

CN4

GND

+ M

120 term. JP1=ON

The minimum configuration of the internal network consists of 1 master without slave (M20=1). The maximum configuration of the internal network consists of 1 master unit connected to 14 slave units (M20=15).
Addresses are set for all units by means of a SW3 rotary dip switch located on each slave card (see “53. Electrical connections” page 113)

Address A=10, B=11, C=12, D=13, E=14, F=15, address 0 is not valid and must not be selected.

Each unit, included the master unit must have an address different from other units and different from 0. The master or slave can have any adress between 1 and F.
In case less than 15 units (14 slaves + 1 master) are used, parameter M20 must be equal to the total of units present in the
internal network.
It is mandatory to assign an address different for each unit and on the range from 1 to the value of parameter M20. The unit that is master must have jumper J1 ON, the slaves jumper J1 OFF (not mounted). It is not possible to set 2 units in the same internal network as master otherwise communication could not takes place.

OFF (Ext Adr = Int Adr = SW3)

ON (Ext Adr = M19)

Parameter M20 can be set either by an optional THS2 unit connected on CN5 of master unit (with password 33) or by Modbus connecting a supervisor on CN5 and setting the variable ADR_MOD_MAX_UNITS_INTERNAL_NETWORK (11150).

To connect a supervisor for the first time on CN5 connector use the address set on rotary switch of the master unit for internal network (jumper J2 must be OFF) with baud rate 19200 bit/s, parity even.

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3. External Modbus network

The external Modbus network allows the connection of a supervisor to the internal network via master unit with a second

communication port.

It is possible to connect several internal networks to the same supervisor by assigning a different address to each master in

the external network.

When jumper J2 is not mounted, the address set on rotary switch SW3 is the same for internal and external network.

(Parameter M19 is also set to this value).

Connection to supervisor system can be faster for several internal networks as it is not necessary to set external address with

parameter M19.

Ext Adr = Int Adr = SW3 [1]

Int Adr = SW3 [2]

Int Adr = SW3 [3]

J1 J2 SW3

Optional

SLAVE
120 term. JP3=ON

CN5
MASTER

120 term. JP2=ON GN
M +
M –

THS2-0MM

SLAVE

THS2-0MM

Transmitter

CN4

120 term. JP1=ON

GND

+ M

M20=3

CN4

GND

+ M

CN4

GND

+ M

GND

+ M

SLAVE

Ext Adr = Int Adr = SW3 [2] J1 J2 SW3

CN5
MASTER

+ M

THS2-0MM

–

CN4

120 term. JP1=ON

GND

+ M

M20=2

Int Adr = SW3 [1] J1 J2 SW3

THS2-0MM

CN4

120 term. JP1=ON

GND

+ M

SLAVE SLAVE SLAVE

Supervisor

120 termination ON

+ M

Ext Adr = Int Adr = SW3 [3] J1 J2 SW3

CN5
MASTER

+ M

THS2-0MM

–

CN4

120 term. JP1=ON

GND

+ M

M20=4

CN5
MASTER

Ext Adr = 16 (M19=16) Int Adr = SW3 [1] J1 J2 SW3

+ M

THS2-0MM

–

CN4

120 term. JP1=ON

GND

+ M

M20=2

Int Adr = SW3 [1] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

SLAVE
120 term. JP3=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Optional
Transmitter

GND

+ M

Int Adr = SW3 [4] J1 J2 SW3

THS2-0MM

CN4

120 term. JP1=ON

GND

+ M

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For higher number of internal networks to connect to supervisor, external address of each master unit must be set by following procedure:

Put jumper J2 in ON position.

OFF (Ext Adr = Int Adr = SW3)

ON (Ext Adr = M19)

if a THS2 is connected to the master set parameter M19 to the desired address and exit parameters setting to transfert the new address to master unit. If a THS2 is not connected to the THS2-0MM master, connect supervisor on CN5 and set new address on variable ADR_ MOD_MODBUS_ADDRESS_NETWORK (11149). Before changing address the connection must be done with the address set on SW3. After the THS2-0MM master takes into consideration the new address, it is necessary for THS2 (or supervisor) to establish a

MODE

connection with the new address set. Press the keys + simultaneously, the following message appears on the dis-

Adr

play:

Press the key the current address is flashing. With keys or select the new address and press the the key to

save the selection, then the ESC key to exit connection address setting.

Example of assignment done for the following network:

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Min External Address = 1

Ext Adr = 1

120 term. JP2=ON GN
M +
M –

THS2-0MM

Int Adr = 1

CN4

GND

+ M

120 term. JP1=ON

Ext Adr = 2

THS2-0MM

M +

Int Adr = 1

–

CN4

GND

+ M

120 term. JP1=ON

Every 31 node, add a repeater!

Ext Adr = 31

THS2-0MM

M +

CN5

Int Adr = 1

–

CN4

GND

+ M

120 term. JP1=ON

120 term. ON 120 term. ON

GN
M +
M –
Repeater
GN
M +
M –

CN5
MASTER

MASTER

THS2-0MM

Int Adr = 2

CN4

GND

+ M

THS2-0MM

Int Adr = 2

CN4

GND

+ M

THS2-0MM

Int Adr = 2

CN4

GND

+ M

SLAVE

THS2-0MM

Int Adr = 3

CN4

GND

+ M

THS2-0MM

Int Adr = 3

CN4

GND

+ M

THS2-0MM

Int Adr = 3

CN4

GND

+ M

SLAVE

THS2-0MM

SLAVE

Int Adr = 15

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

SLAVE

Int Adr = 15

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

SLAVE

Int Adr = 15

CN4

GND

+ M

120 term. JP1=ON

Max External Address = 247

Ext Adr = 247

THS2-0MM

GN
M +
M 120 term. –
JP2=ON

Int Adr = 1

CN4

GND

+ M

120 term. JP1=ON

CN5
MASTER

THS2-0MM

Int Adr = 2

CN4

GND

+ M

SLAVE

THS2-0MM

Int Adr = 3

CN4

GND

+ M

SLAVE

THS2-0MM

SLAVE

Int Adr = 15

CN4

GND

+ M

120 term. JP1=ON

The supervisor can monitor all status of each master, and several status variables of slaves, set the operating parameters for each internal network. If necessary, it can sets inputs, outputs of all devices of the same internal network indipendently from regulation. The supervisor must exchange data with each master with a time laps lower than 10 minutes to be considered as connected by master otherwise change of parameters done by supervisor are not considered.
Note: in case of change of parameters for baud rate, parity on external network, make change on master unit from supervisor or on a THS2 connected to CN5 of master unit. Automatically all units connected to master unit will change parameters setting for communication on external network and after the change done, the supervisor and each THS2 connected to slaves of internal network will have to update communication parameters to the new ones to be able to communicate again.
4. Optional THS2 connection

If no supervisor is used an optional display THS2 can be connected to a master on the second Modbus communication port (CN5 connector) for monitoring operating mode of master unit and set all parameters. The master unit transmits the same setting to the whole slaves of internal network.

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120 term. JP1=ON CN5
MASTER SLAVE SLAVE

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND
M20=3

CN4

GND

+ M

120 term.

JP1=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Int Adr = SW3 [3] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

Connect GN and GND on this case.

If a supervisor is connected to the master unit, an optional display THS2 can be connected to a slave on the second Modbus communication port (CN5 connector). The optional THS2 can monitor operating mode of the slave at which it is connected and can only change some operating variables such as setpoint or offset setpoint, speed of fan, on/off. These changes will be then set on the whole internal network by the THS2-0MM master unit.

CN5
MASTER SLAVE
120 term. JP1=ON CN5
SLAVE

Supervisor

120 termination ON

+ M

Ext Adr = Int Adr = SW3 [1]

J1 J2 SW3

120 term. JP2=ON GN M + M –
M20=3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

THS2

-+ M M

GND +5V

Int Adr = SW3 [3]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

120 term.

JP1=ON

It is also possible to connect more than one THS2 on the second Modbus communication port (CN5 connector), at maximum one per unit THS2-0MM.

120 term. JP1=ON CN5
MASTER
120 term. JP1=ON CN5
SLAVE SLAVE

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND
M20=3

CN4

GND

+ M

120 term.

JP1=ON

THS2

-+ M M

GND +5V

Int Adr = SW3 [2]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

Int Adr = SW3 [3] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

By parameter M22 it is possible to define what can do THS2 when connected to a THS2-0MM slave unit (see “31. Optional THS2” page 52).

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5. THS2-0MM connected to THS2 and supervisor contemporaneously

it is possible to create a network with several THS2-0MM slave units connected to supervisor system on CN4 and THS2 unit on CN5.

120 term. JP1=ON

Supervisor

120

termination ON

GND

+ M

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = M19 = XX SW3 [0]

120 term. GN JP2=ON

J1 J2 SW3

CN5

M +

–

THS2-0MM

SLAVE

+5V

CN4

GND

+ M

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = M19 = XX SW3 [0]

120 term. GN JP2=ON

J1 J2 SW3

CN5

M +

–

THS2-0MM

SLAVE

+5V

CN4

GND

+ M

THS2

-+ M M

GND +5V
Ext Adr = Int Adr = M19 = XX SW3 [0]

120 term. GN JP2=ON

J1 J2 SW3

M +

–

THS2-0MM

CN5
SLAVE

+5V

CN4

GND

+ M

120 term.

JP1=ON

To create such a network, the following settings must be done on all THS2-0MM units: – jumper J1 must be OFF (not mounted), by this way all units are slaves. – the position of SW3 must be put on 0, by default the address on CN4 and CN5 becomes 1. – jumper J2 must be ON (mounted). By parameter M19 the address of a THS2-0MM unit must be set between 1 and 247. This address is the same for CN4 (internal network) and CN5 (external Modbus connection towards display THS2) and must be different for each unit. It is advisable to connect a THS2-0MM one by one and do the settings indicated. After connection has been established write on variable STATUS_PRESENCE_MASTER (11038) the value 5555 to indicate the presence of the master unit. it is necessary for supervisor to communicate with each slave with a time lapse lower than 10 minutes otherwise a slave will consider the supervisor unconnected.

if a THS2 is connected to the THS2-0MM slave, set parameter M19 to the desired address and exit parameters setting to transfert the new address to the slave unit or connect supervisor on CN4 and set new address on variable ADR_MOD_MODBUS_ADDRESS_NETWORK (11149) (default baud rate=9600bit/s with even parity and address 1). After the THS2-0MM slave takes into consideration the new address, it is necessary for THS2 (and supervisor) to establish

MODE

the connection with the new address set. For THS2 press the keys + simultaneously, the following message appears

Adr

on the display:

Press the key the current address is flashing. With keys or select the new address and press the the key to

save the selection, then the ESC key to exit connection address setting.

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6. Regulation sensor

A wide choice can be made when selecting the regulation sensor for a THS2-0MM. The regulation sensor of a given unit can be: – it’s own remote regulation sensor, – the internal sensor of optional THS2, – the remote regulation sensor of master unit. Selection is made writing the variable ADR_MODTYPESENSREG (11070) (parameter I02) on master unit.

If I02=0, the respective slave regulation sensor that can be sensor AI1 (or AI2): .

Ext Adr = Int Adr = SW3 [1] J1 J2 SW3

Int Adr = SW3 [2] J1 J2 SW3

Int Adr = SW3 [3] J1 J2 SW3

Int Adr = SW3 [4] J1 J2 SW3

MASTER SLAVE SLAVE SLAVE

THS2-0MM

AI1 GND

CN4

GND

+ M

M20=4 I02=0

120 term. JP1=ON

I11=1

THS2-0MM

AI1 GND

CN4

GND

+ M

THS2-0MM

AI1 GND

CN4

GND

+ M

THS2-0MM

AI1 GND

CN4

GND

+ M

120 term. JP1=ON

Write 0 on variable ADR_MODTYPESENSREG (11070) (parameter I02) on master unit. Write 1 on variable ADR_MODANAINPUT1FUN (11079) (parameter I11) to set AI1 as regulation sensor on master unit [or ADR MOD_ANAINPUT2FUN (11081) (parameter I13) to set AI2].

If I02=1 regulation with internal temperature of optional THS2 connected to master unit for whole network:

120 term. JP1=ON CN5
MASTER SLAVE SLAVE SLAVE

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

M20=4 I02=1

120 term. JP1=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Int Adr = SW3 [3] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Write 1 on variable ADR_MODTYPESENSREG (11070) (parameter I02) on master unit. On THS2 unit set parameter M22=0.

Int Adr = SW3 [4] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

120 term. JP1=ON

– regulation with internal temperature of optional THS2 connected to a slave unit for whole network

CN5
MASTER SLAVE
120 term. JP1=ON CN5
SLAVE

Ext Adr = Int Adr = SW3 [1] J1 J2 SW3

GN M
+ M
–
M20=3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

THS2

-+ M M

GND +5V

Int Adr = SW3 [3]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

120 term.

JP1=ON

Write 1 on variable ADR_MODTYPESENSREG (11070) (parameter I02) on master unit. On THS2 unit set parameter M22=0.

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– In case several THS2 units are connected to different THS2-0MM units it is possible to select the internal temperature of the THS2 that will be used for whole network (see example below):

120 term. JP1=ON CN5
MASTER 120 term. JP1=ON CN5 SLAVE SLAVE

Tint1 THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND
M20=3

CN4

GND

+ M

120 term.

JP1=ON

Tint2 THS2

-+ M M

GND +5V

Int Adr = SW3 [2]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

Int Adr = SW3 [3] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

Tint1: internal temperature of THS2 connected to THS2-0MM with address 1 Tint2: internal temperature of THS2 connected to THS2-0MM with address 2

M22 [THS2 connected to THS2-0MM with address 1] = 0 M22 [THS2 connected to THS2-0MM with address 2] = 0 Regulation temp THS2-0MM [with address 1]=Tint1 Regulation temp THS2-0MM [with address 2]=Tint2 Regulation temp THS2-0MM [with address 3]=Tint1 (both THS2 transmit there internal temperature, units of internal network without THS2 connected use the internal temperature of the THS2 connected to the THS2-0MM with lowest internal address).

M22 [THS2 connected to THS2-0MM with address 1] = 1 M22 [THS2 connected to THS2-0MM with address 2] = 0
Regulation temp THS2-0MM [with address 1]=Tint2 Regulation temp THS2-0MM [with address 2]=Tint2 Regulation temp THS2-0MM [with address 3]=Tint2

M22 [THS2 connected to THS2-0MM with address 1] = 0 M22 [THS2 connected to THS2-0MM with address 2] = 1 Regulation temp THS2-0MM [with address 1]=Tint1 Regulation temp THS2-0MM [with address 2]=Tint1 Regulation temp THS2-0MM [with address 3]=Tint1

– If a supervisor is connected to master unit instead an optional display, it can send a temperature to the internal network for regulation:

Ext Adr = Int Adr = SW3 [1]

Int Adr = SW3 [2]

Int Adr = SW3 [3]

Int Adr = SW3 [4]

Supervisor

J1 J2 SW3

120 termination ON
CN5
MASTER SLAVE SLAVE SLAVE

THS2-0MM

–

120 term. JP2=ON

CN4

GND

+ M

M20=4 I02=1

120 term. JP1=ON

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

120 term. JP1=ON

Follow the procedure below on master unit from supervisor: – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of temperature multiplied by 10 (for example 255 to transmit a temperature of 25.5°C) on variable ADRMOD STATUS_CURRENT_THS2_TEMP (11034). Do not exceed 9 minutes without sending a message from supervisor to master unit otherwise supervisor is considered not connected and temperature is forced to a value corresponding to sensor open (-200).

– If a supervisor is connected to master unit and an optional display on a THS2-0MM unit, the selection of the temperature for regulation depends on the setting done on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) of master unit from supervisor and parameter M22 of THS2:

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CN5
MASTER SLAVE
120 term. JP1=ON CN5
SLAVE

Supervisor

120

termination ON

+ M

Ext Adr = Int Adr = SW3 [1]

J1 J2 SW3

120 term. JP2=ON GN M + M –
M20=3

THS2-0MM

CN4

GND

+ M

120 term.

JP1=ON

Int Adr = SW3 [2] J1 J2 SW3

THS2-0MM

CN4

GND

+ M

Tint2 THS2

-+ M M

GND +5V

Int Adr = SW3 [3]

120 term. JP2=ON GN
M +
M –

J1 J2 SW3
THS2-0MM

+5V GND

CN4

GND

+ M

120 term.

JP1=ON

Tint2: internal temperature of THS2 connected to THS2-0MM with address 3
->regulation of all internal network with temperature supplied by supervisor – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of temperature multiplied by 10 (for example 255 to transmit a temperature of 25.5°C) on variable ADRMOD STATUS_CURRENT_THS2_TEMP (11034). Do not exceed 9 minutes without sending a message from supervisor to master unit otherwise supervisor is considered not connected and temperature is forced to a value corresponding to sensor open (-200). – set M22 [THS2 connected to THS2-0MM with address 3] = 1
->regulation of all internal network with temperature supplied by THS2: – write the value 11500 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) without transmitting temperature – set M22 [THS2 connected to THS2-0MM with address 3] = 0

If I02=2 regulation with own remote regulation sensor of master unit On this case the temperature of sensor connected to AI1 (or AI2) is used for regulation by all units of the whole internal network. Write 2 on variable ADR_MODTYPESENSREG (11070) (parameter I02) on master unit. Write 1 on variable ADR_MOD_ANAINPUT1FUN (11079) (parameter I11) to set AI1 as regulation sensor on master unit.

Ext Adr = Int Adr = SW3 [1]

Int Adr = SW3 [2]

Int Adr = SW3 [3]

Int Adr = SW3 [4]

J1 J2 SW3

MASTER SLAVE SLAVE SLAVE

THS2-0MM

AI1 GND

CN4

GND

+ M

M20=4 I02=2

120 term. JP1=ON

I11=1
S1

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

120 term. JP1=ON

Note: for I02=0 or I02=2 if a THS2 is connected to a THS2-0MM unit it is also possible to consider the temperature of internal THS2 together with remote regulation sensor of THS2-0MM to obtain the regulation sensor. Example: to regulate with a weighting of 25% of the remote sensor connected on AI1 (or AI2) and a weighting of 75% of the internal sensor of the THS2 with I02=2, set the following setting on THS2-0MM unit: Write 2 on variable ADR_MODTYPESENSREG (11070) (parameter I02). Write 1 on variable ADR_MOD_ANAINPUT1FUN (11079) (parameter I11) to set AI1 as regulation sensor. Write 25 on variable ADR_MOD_WEIGHTREMAISENS(11094) (parameter I26) to set the weigth of remote regulation sensor
The following formula is applied for calculation of regulation sensor: Treg=[Ti (100 – Y) + (TA x Y)] / 100 with: Ti=internal sensor of THS2, TA=remote sensor connected on AI1 of THS2-0MM, Y=weigth of remote sensor. For not considering weighting set the parameter I26 to 100 (default value).

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7. ON/OFF function on THS2-0MM

The THS2-0MM master can be switched on or off by configuring a digital input with remote on/off function I07=2 (Input DI1) or I09=2 (Input DI2), by connecting an optional THS2-0MM or by supervisor. On this last case to put unit in ON write the value 1 to the address ADR_MOD_FORCEMASTERGLOBALONOFF (11048) or 0 to put the unit in OFF. To release the control of ON/OFF from supervisor write the value 200 on the same address. A THS2-0MM slave can be switch on/off by THS2-0MM master or by an optional THS2 connected.
In case a remote contact is used for on/off function on THS2-0MM master it has high priority if no supervisor sytem is connected. Even if a THS2 is connected it is not possible to switch on/off manually or by time bands. If a supervisor system is connected to the THS2-0MM master with a remote on/off contact set, the supervisor has the highest priority for switching on/off internal network by writing 0 (for switching off) or 1 (for switching on) to the address ADR MOD_FORCE_MASTERGLOBALONOFF (11048). To let the contact on/off take the control on master unit for on/off function the supervisor must write the value 200 on address ADR_MOD_FORCE_MASTERGLOBALONOFF (11048).

8. Logic of digital and analogue inputs THS2-0MM
· Digital slave inputs DI1 and DI2

Parameter I07=0 (Input DI1) or I09=0 (Input DI2)

Logic

Not used

I07=1 (Input DI1) or I09=1 (Input DI2)

Logic DI1 I08 = Logic DI2 I10 =

Remote contact for season changeover

Summer Winter

I07=2 (Input DI1) or I09=2 (Input DI2)
Remote On/Off (Do not use if a supervisor system is connected to master unit. Supervisor
has higher priority and contact is not considered on this case)

Logic DI1 Logic DI2

I08 = I10 =
Off
On

I07=3 (Input DI1) or I09=3 (Input DI2) Unoccupied

Logic DI1 I08 = Logic DI2 I10 =

“Unoccupied holidays” mode

“occupied” mode

I07=4 (Input DI1) or I09=4 (Input DI2)

Logic DI1 I08 = Logic DI2 I10 =

Energy saving

No economy Economy

I07=5 (Input DI1) or I09=5 (Input DI2)

Logic DI1 I08 = Logic DI2 I10 =

Window contact

Window open Window closed

I07=6 (Input DI1) or I09=6 (Input DI2)

Logic DI1 I08 = Logic DI2 I10 =

Generic alarm

Alarm absent Alarm present

I07=7 (Input DI1) or I09=7 (Input DI2)

Logic DI1 I08 = Logic DI2 I10 =

Minimum thermostat

Open Closed

Setting is done either by setting parameters on the optional THS2 connected to master unit or by modbus of master unit and

writing the following variables:

ADR_MOD_DIGINPUT1FUN (11075) for setting I07

ADR_MOD_DIGINPUT1LOG (11076) for setting I08

ADR_MOD_DIGINPUT2FUN (11077) for setting I09

ADR_MOD_DIGINPUT2LOG (11078) for setting I10

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· Analogue slave inputs

1. Analogue input 1 (AI1):

Parameter

I11=0

Sensor not used

I11=1 Remote regulation sensor

Sensor AI1 is used to obtain the final regulation temperature (for the calculation, see “6. Regulation sensor” page 13

I11=2

C16=0 or 1

Water sensor for sea-

son changeover

C16=2

0.5°C

Cooling

Heating

Cooling

Heating

C14

C13

Temp. water

C14

C13

Temp.water

I11=3 Minimum thermostat sensor

If the water sensor temperature at power-on is between C14 and C13, see paragraph “9. Automatic season changeover with water sensor” page 20 for season definition.

Minimum thermostat open
C15 2°C

Minimum thermostat closed
C15

Temp. water coil

I11=4 Remote contact for season changeover

If the temperature of the heating battery sensor at power-on is between C15 and C15 – 2, the minimum thermostat is considered open.

I12 =

Summer

Winter

I11=5 Remote On/Off (Do not use if a supervisor system is connected to master unit. Supervisor has higher priority and
contact is not considered
on this case)

I12 =

I11=6

I12 =

Unoccupied holidays

Off On
“Unoccupied holidays” mode

Occupied mode

I11=7 Energy saving

I12 =

No economy mode

Economy mode

I11=8 Window contact

I12 =

Window open

Window closed

I11=9 Alarm

I12 =

Alarm absent

Alarm present

I11=10 Remote setpoint variator input

The setpoint variator SAP-NTC-02-2-EV must be connected in order to change the slave setpoint

For I11=4 to 9 configurations, analogue input 1 is used as a digital input. The contact is considered closed, if there is a short circuit on the analogue input. The contact is considered open, if nothing is connected. Setting is done either by setting parameters on the optional THS2 connected to master unit or by modbus of master unit and writing the following variables: ADR_MOD_ANAINPUT1FUN (11079) for setting I11 ADR_MOD_ANAINPUT1LOG (11080) for setting I12
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2. Analogue input 2 (AI2):

Parameter
I13=0
I13=1 Remote regulation sensor
I13=2 Water sensor for sea-
son changeover

Sensor not used Sensor AI2 is used to obtain the final regulation temperature (for the calculation, see “6. Regulation sensor” page 13)

C16=0 or 1

C16=2

0.5°C

Cooling

Heating

Cooling

Heating

C14

C13

Temp. water

C14

C13

Temp.water

I13=3 Minimum thermostat sensor

If the water sensor temperature at power-on is between C14 and C13, see paragraph “9. Automatic season changeover with water sensor” page 20 for season definition.

Minimum thermostat open
C15 2°C

Minimum thermostat closed
C15

Temp. water coil

I13=4 Remote contact for season changeover

If the temperature of the heating battery sensor at power-on is between C15 and C15 – 2, the minimum thermostat is considered open.

I14 =

Summer

Winter

I13=5 Remote On/Off (Do not use if a supervisor system is connected to master unit. Supervisor has higher priority and
contact is not considered on this case)
I13=6 Unoccupied holidays

I14 = I14 =

Off On
“Unoccupied holidays” mode

Occupied mode

I13=7 Energy saving

I14 =

No economy mode

Economy mode

I13=8 Window contact

I14 =

Window open

Window closed

I13=9 Alarm

I14 =

Alarm absent

Alarm present

I13=10 Remote setpoint variator input

The setpoint variator SAP-NTC-02-2-EV must be connected in order to change the slave setpoint

For I13=4 to 9 configurations, analogue input 2 is used as a digital input. The contact is considered closed, if there is a short circuit on the analogue input. The contact is considered open, if nothing is connected.

Setting is done either by setting parameters on the optional THS2 connected to master unit or by modbus of master unit and writing the following variables: ADR_MOD_ANAINPUT2FUN (11081) for setting I13 ADR_MOD_ANAINPUT2LOG (11082) for setting I14
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The digital inputs or analogue inputs that are common to all network such as remote on/off, change-over season, economy, unoccupied holidays, window contact must be connected to the master unit in order to be visible by the whole internal network.
On the example below are indicated the connection of digital inputs that are common to the whole internal network:

Ext Adr = Int Adr = SW3 (1)

Int Adr = SW3 (2)

Int Adr = SW3 (3)

Int Adr = SW3 (4)

J1 J2 SW3

THS2-0MM

DI1 DI2 GND

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

120 term. JP1=ON

DI1 DI2
MASTER SLAVE SLAVE SLAVE

If no master is present each unit works indipendently, it is necessary to connect a digital input or an analogue input, that is configured for a function, on each unit.

The digital contacts or analogue inputs that are local to each unit such as minimum thermostat or alarm contact must be connected to each unit. On the example below are indicated the connection of digital inputs that are not common to the whole internal network:

Ext Adr = Int Adr = SW3 (1)

Int Adr = SW3 (2)

Int Adr = SW3 (3)

Int Adr = SW3 (4)

J1 J2 SW3

THS2-0MM

DI1 DI2 GND

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

DI1 DI2 GND

CN4

GND

+ M

THS2-0MM

DI1 DI2 GND

CN4

GND

+ M

THS2-0MM

DI1 DI2 GND

CN4

GND

+ M

120 term. JP1=ON

DI1 DI2
MASTER
DI1 DI2
SLAVE
DI1 DI2
SLAVE
DI1 DI2
SLAVE

Note: If the same function is assigned to the digital and/or analogue inputs on the master and slaves and also on an optional THS2 connected to the master unit, the following priority applies in cases of similar assignment:

Priority of inputs for remote season changeover, on/off, unoccupied holidays, economy, window contact:

THS2 digital input 1 (DI1)

–

Highest priority

THS2 digital input 2 (DI2)

THS2-0MM digital input 1 (DI1)

THS2-0MM digital input 2 (DI2)

THS2-0MM analogue input 1 (AI1)

THS2-0MM analogue input 2 (AI2)

–

Lowest priority

Priority of inputs for minimum thermostat function for each slave:

THS2 digital input 1 (DI1)

–

THS2 digital input 2 (DI2)

THS2-0MM digital input 1 (DI1)

THS2-0MM digital input 2 (DI2)

THS2-0MM analogue input 1 (AI1)

THS2-0MM analogue input 2 (AI2)

–

Highest priority Lowest priority

In case of alarm function there is no priority, it is possible to have several indipendent alarm contacts for master and each slave.

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9. Automatic season changeover with water sensor

In 2-pipe systems (I01=0), if no digital input is configured for remote season changeover, and no analogue input is configured as a remote season changeover contact, it is possible to use a remote sensor of the THS2-0MM master unit for the internal
network and configure it as a water sensor for automatic season changeover (I11=2 or I13=2). The example below indicates the automatic change-over season sensor based on AI2 of master unit:

Ext Adr = Int Adr = SW3 (1)

Int Adr = SW3 (2)

Int Adr = SW3 (3)

Int Adr = SW3 (4)

J1 J2 SW3

MASTER SLAVE SLAVE SLAVE

THS2-0MM

AI2 GND

CN4

GND

+ M

120 term. JP1=ON

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

THS2-0MM

CN4

GND

+ M

120 term. JP1=ON

WATER SENSOR

Write 2 on variable ADR_MOD_ANAINPUT2FUN (11081) (parameter I13).
The season changeover is implemented automatically according to the water temperature at the inlet of the fan coil unit. Depending on the value of parameter C16, the season changeover takes place as follows:
C16=0 or 1:

Summer C14

Winter C13

Temp. water

C13: heating setpoint for automatic season changeover sensor C14: cooling setpoint for automatic season changeover sensor

When the unit is switched on, if the water sensor temperature is between C14 and C13, the operating season is heating (if C16=0) or cooling (if C16=1). Then, if the temperature of the water sensor varies and exceeds C13, heating becomes the operating season. If the temperature of the water sensor varies and falls below C14, cooling becomes the operating season.

C16=2:

0.5°C

Summer C14

Winter C13

Temp. water

C13: heating setpoint for automatic season changeover sensor C14: cooling setpoint for automatic season changeover sensor
When the unit is switched on, if the water sensor temperature is between C14 and C13, the operating season is not specified, and there is no regulation. Then, if the temperature of the water sensor varies and exceeds C13, heating becomes the operating season. If it falls below C13 -0.5°C again, the season is unspecified, and regulation is stopped. If the temperature of the water sensor varies and falls below C14, cooling becomes the operating season. If it rises above C14 +0.5°C again, the season is unspecified, and regulation is stopped.
Setting of parameters C13, C14, C16 is done either by setting parameters on the optional THS2 connected to master unit or by modbus via connector CN2 of master unit and writing the following registers: ADR_MOD_WINTERSETCO (11134) for setting C13

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ADR_MOD_SUMMERSETCO (11135) for setting C14 ADR_MOD_SEASONINBETWEENSUMWIN (11137) for setting C16
10. Working setpoint, economy and unoccupied holidays mode
If one of the digital contacts is configured as a remote “unoccupied holidays” contact M01=3 (DI1) or M03=3 (DI2) on the optional THS2, or if one of the digital contacts is configured as a remote “unoccupied holidays” contact I07=3 (DI1) or I09=3 (DI2), or an analogue input is configured as an “unoccupied holidays” contact I11=6 (AI1) or I13=6 (AI2) on a THS2-0MM master, the “unoccupied holidays” function can be activated, if the corresponding contact is in the appropriate position (see “8. Logic of digital and analogue inputs THS2-0MM” page 16 and “43. Logic of digital inputs THS2” page 77).
2-pipe systems (I01=0): In “unoccupied holidays” mode, the working heating setpoint is decreased by C09 (see 2-pipe heating diagram, WHS), the working cooling setpoint is increased by C09 (see 2-pipe cooling diagram, WCS). 4-pipe systems (I01=1): In “unoccupied holidays” mode, the heating trigger point is decreased by C09 (see 4-pipe diagram, WHS), and the cooling trigger point is increased by C09 (see 4-pipe diagram, WCS). In case of presence of optional THS2 connected to a THS2-0MM, the icon lights up to indicate “unoccupied holidays” mode.
If one of the digital contacts is configured as a remote “energy saving” contact M01=4 (DI1) or M03=4 (DI2) on the optional THS2, or if one of the digital contacts is configured as a remote “energy saving” contact I07=4 (DI1) or I09=4 (DI2), or an analogue input is configured as an “energy saving” contact I11=7 (AI1) or I13=7 (AI3) on a THS2-0MM master, the energy-saving function can be activated, if the corresponding contact is in the appropriate position (see “8. Logic of digital and analogue inputs THS2-0MM” page 16 and “43. Logic of digital inputs THS2” page 77).
2-pipe systems (I01=0): The working heating setpoint is decreased by C08 (see 2-pipe heating diagram, WHS), and the working cooling setpoint is increased by C08 (see 2-pipe cooling diagram, WCS) 4-pipe systems (I01=1): In “energy saving” mode, the heating trigger point is decreased by C08 (see 4-pipe diagram, WHS), and the cooling trigger point is increased by C08 (see 4-pipe diagram, WCS) In case of presence of optional THS2 connected to a THS2-0MM, the “ECO” icon is turned on to indicate “energy saving” mode. The “unoccupied holidays” mode has priority over economy mode when both functions are triggered.
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2-pipe diagram (analogue output, cooling)

2-pipe diagram (digital output, cooling)

OUT 100

0 C02 WCS

OUT

100
ECONOMY or HOLIDAY
0

WCS

(C08 o C09)

C02 2-pipe cooling setpoint WCS: cooling trigger point

Temp. Temp.

OUT ON

OFF
OUT
ON
ECONOMY or HOLIDAY
OFF

WCS C02

Temp.

Temp.
WCS

(C08 o C09)

C02 2-pipe cooling setpoint WCS: cooling trigger point

2-pipe diagram (analogue output, heating)

2-pipe diagram (digital output, heating)

OUT 100

0
OUT
100 ECONOMY or HOLIDAY
0

WHS C01

Temp.

WHS

Temp.

(C08 o C09)
C01: 2-pipe heating setpoint WHS: heating trigger point

OUT ON

OFF OUT

WHS C01

ON
ECONOMY or HOLIDAY
OFF
WHS

(C08 o C09)

C01: 2-pipe heating setpoint WHS: heating trigger point

Temp. Temp.

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4-pipe diagram (analogue output)
OUT 100

0
OUT
100 ECONOMY or HOLIDAY
0

WHS C03 WCS

WHS

C03

WCS

(C08 o C09) (C08 o C09)

Temp. Temp.

Outputs ON

OFF

WHS

Outputs

BS4P (C03)

WCS

Temp

ON
ECONOMY or HOLIDAY
OFF
WHS
(C08 o C09)
C03: 4-pipe setpoint WCS: cooling trigger point WHS: heating trigger point

BS4P (C03)

Temp
WCS
(C08 o C09)

It is possible to display the working setpoint with an optional THS2 connected to a THS2-0MM in the I/O status menu (see paragraph “44. Input/output status of THS2-0MM connected to THS2” page 77). In this case, the value corresponding to WHS in the “WHS” submenu is displayed in heating mode, and the value corresponding to the WCS in the “WCS” submenu is displayed in cooling mode.

If none of the contacts are configured in “unoccupied holidays” or “energy saving” mode, by an optional THS2 connected to THS2-0MM master it is possible to program time bands in order to regulate with base setpoints within the time bands and in
economy mode outside. To do so set Mod=tiMb on THS2, and the time band function M10=0 (see “33. Setting parameters using quick access on THS2” page 54). If this is not the case, the status of the contact configured in “unoccupied holidays” or “energy saving” mode takes priority, and the time bands are not taken into account.

If none of the contacts are configured in “unoccupied holidays” or “energy saving” mode, regulation takes place in unoccupied holidays if the operating mode is unoccupied holidays mode (set manually via quick access parameters see “MODE key function” page 56). If this is not the case, the status of the contact configured in “unoccupied holidays” or “energy saving” mode overrides the manual setting. When the timer extension function is activated manually on THS2 connected to the THS2-0MM master it has higher priority than energy saving, unoccupied holidays and time band modes (see “34. Timer extension or forced presence mode” page
58).
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11. Temperature regulation batteries
The temperature regulation batteries are configured via the parameters – heating battery (stage 1) I03, variable ADR_MOD_TYPHEATINGCOIL (11071) – cooling battery I04, variable ADR_MOD_TYPCOOLINGCOIL (11072) – supplemental battery (stage 2 heating or for mid-season operation) I05,, variable ADR_MOD_TYPADDCOIL (11073).

Battery Heating battery
Cooling battery Hot/cold mixed-use battery Supplemental heating battery

Battery type No heating battery
Modulating electrical resistance
Modulating heating valve
On/off electrical resistance
On/off heating valve No cooling battery Modulating cooling valve Cooling valve on/off No mixed-use battery Modulating mixed-use valve Mixed-use on/off valve No supplemental heating battery Supplemental heating battery on/off Modulating supplemental heating battery

Set the outputs to activate the selected batteries as shown in the table below: -output DO1 I15, variable ADR_MOD_DIGOUTPUT1FUNC (11083) -output DO2 I16, variable ADR_MOD_DIGOUTPUT2FUNC (11084) -output DO3 I17, variable ADR_MOD_DIGOUTPUT3FUNC (11085) -output DO4 I18, variable ADR_MOD_DIGOUTPUT4FUNC (11086) -output DO5 I19, variable ADR_MOD_DIGOUTPUT5FUNC (11087) -output DO6 I20, variable ADR_MOD_DIGOUTPUT6FUNC (11088) -output AO1 I21, variable ADR_MOD_ANAOUTPUT1FUNC (11089) -output AO2 I22, variable ADR_MOD_ANAOUTPUT2FUNC (11090) -output AO3 I23, variable ADR_MOD_ANAOUTPUT3FUNC (11091).

Setting I03=0
I03=1
I03=2
I03=3
I03=4 I04=0 I04=1 I04=2
I03=2 and I04=1 I03=4 and I04=2
I05=0 I05=1 I05=2

Element Modulating electrical resistance
Modulating heating valve On/off electrical resistance
On/off heating valve Modulating cooling valve

Setting
I21=8 (AO1) or I22=8 (AO2) or
I23=8 (AO3)
I21=2 (AO1) or I22=2 (AO2) or
I23=2 (AO3)
I15=7 (DO1) or I16=7 (DO2) or I17=7 (DO3) or I18=7 (DO4) or I19=7 (DO5) or
I20=7 (DO6)
I15=4 (DO1) or I16=4 (DO2) or I17=4 (DO3) or I18=4 (DO4) or I19=4 (DO5) or
I20=4 (DO6)
I21=3 (AO1) or I22=3 (AO2) or
I23=3 (AO3)

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Cooling valve on/off Modulating mixed-use valve
Mixed-use on/off valve Supplemental modulating resistance
Supplemental on/off resistance 3-point (open) on/off heating valve 3-point (close) on/off heating valve 3-point (open) cooling valve on/off 3-point (close) cooling valve on/off 3-point (open) mixed-use valve on/off 3-point (close) mixed-use valve on/off

I15=5 (DO1) or I16=5 (DO2) or I17=5 (DO3) or I18=5 (DO4) or I19=5 (DO5) or
I20=5 (DO6)
I21=4 (AO1) or I22=4 (AO2) or
I23=4 (AO3)
I15=6 (DO1) or I16=6 (DO2) or I17=6 (DO3) or I18=6 (DO4) or I19=6 (DO5) or
I20=6 (DO6)
I21=9 (AO1) or I22=9 (AO2) or
I23=9 (AO3)
I15=8 (DO1) or I16=8 (DO2) or I17=8 (DO3) or I18=8 (DO4) or I19=8 (DO5) or
I20=8 (DO6)
I15=15 (DO1) or I16=15 (DO2) or I17=15 (DO3) or I19=15 (DO5) or
I20=15 (DO6)
I15=16 (DO1) or I16=16 (DO2) or I17=16 (DO3) or I19=16 (DO5) or
I20=16 (DO6)
I15=17 (DO1) or I16=17 (DO2) or I17=17 (DO3) or I19=17 (DO5) or
I20=17 (DO6)
I15=18 (DO1) or I16=18 (DO2) or I17=18 (DO3) or I19=18 (DO5) or
I20=18 (DO6)
I15=19 (DO1) or I16=19 (DO2) or I17=19 (DO3) or I19=19 (DO5) or
I20=19 (DO6)
I15=20 (DO1) or I16=20 (DO2) or I17=20 (DO3) or I19=20 (DO5) or
I20=20 (DO6)

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12. Heating and cooling battery logic

The operating logic of the heating and cooling batteries depends on the following parameters: – I01: type of regulation chosen, variable ADR_MOD_TYPEREG (11069) – I03: type of heating battery (stage 1), variable ADR_MOD_TYPHEATINGCOIL (11071) – I04: type of cooling battery, variable ADR_MOD_TYPCOOLINGCOIL (11072)

· 2-pipe HEATING regulation (I01=0)

The “HEAT” icon is lit to indicate the heating function.

Modulating regulation:

PI-type regulation operates as follows for modulating regulation:

OUT I26
100%

Treg 0
WHS
Treg: regulation sensor WHS: calculated heating setpoint OUT: modulated output:
– modulating valve if I03=2 and I21=2 (AO1) or I22=2 (AO2) or I23=2 (AO3) – modulating electrical resistance if I03=1 and I21=8 (AO1) or I22=8 (AO2) or I23=8 (AO3) – modulating mixed-use valve if I03=2 and I04=1 and I21=4 (AO1) or I22=4 (AO2) or I23=4 (AO3) I27: proportional heating band
If the operating temperature drops below the WHS, the valve begins to open, or the modulating electrical resistance begins to be modulated. The icon lights up, if a valve is being controlled; the icon lights up for the modulating resistance. The valve or modulating resistance can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action only, if I28=0. The (or ) icon turns off, if the modulating valve closes or the electrical resistance is interrupted (no longer powered).
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

On/off regulation:

On/off-type regulation operates as follows:

OUT I30
ON

Treg 0FF
WHS
Treg: regulation sensor WHS=calculated heating setpoint OUT: on/off output:
– on/off valve if I03=4 and I15=4 (DO1) or I16=4 (DO2) or I17=4 (DO3) or I18=4 (DO4) or I19=4 (DO5) or I20=4 (DO6) – on/off electrical resistance, if I03=3 and I15=7 (DO1) or I16=7 (DO2) or I17=7 (DO3) or I18=7 (DO4) or I19=7 (DO5) or I20=7 (DO6) – mixed-use valve on/off if I03=4, I04=2, I15=6 (DO1) or I16=6 (DO2) or I17=6 (DO3) or I18=6 (DO4) or I19=6 (DO5) or I20=6 (DO6) I31: hysteresis for on/off heating output
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If Treg < (WHS – I31) the valve (or electrical resistance) is activated. The (or ) icon lights up.
If Treg >= WHS, the valve (or electrical resistance) is deactivated. The (or ) icon turns off. Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

· 2-pipe COOLING regulation (I01=0) without mid-season changeover (M13=0)
The “COOL” icon lights up to indicate the cooling function.

Modulating regulation:

PI-type regulation operates as follows for modulating regulation:

OUT I28
100%

Treg 0
WCS Treg: regulation sensor WCS: calculated cooling setpoint OUT: modulated output:
– modulating valve if I04=1 and I21=3 (AO1) or I22=3 (AO2) or I23=3 (AO3) – modulating mixed-use valve if I03=2 and I04=1 and I21=4 (AO1) or I22=4 (AO2) or I23=4 (AO3) I29: proportional cooling band
If the operating temperature rises above the WCS, the modulating valve begins to open. The icon lights up. The valve can be regulated with PI action, if the cooling integral time I30 does not equal 0, or with proportional action only, if I30=0. The icon turns off, if the valve closes.
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

On/off regulation:

On/off-type regulation operates as follows:

OUT I31
ON

0FF WCS

Treg

Treg: regulation sensor

WCS: calculated cooling setpoint OUT: on/off output:
– on/off valve if I04=2 and I15=5 (DO1) or I16=5 (DO2) or I17=5 (DO3) or I18=5 (DO4) or I19=5 (DO5) or I20=5 (DO6) – mixed-use valve on/off if I03=4, I04=2, I15=6 (DO1) or I16=6 (DO2) or I17=6 (DO3) or I18=6 (DO4) or I19=6 (DO5) or I20=6 (DO6) I32: hysteresis for on/off cooling output

If Treg > (WCS + I32), the valve is activated. The icon lights up. If Treg <= WCS , the valve is deactivated, and the icon turns off.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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· 2-pipe COOLING regulation (I01=0) with mid-season changeover (M13=1)
The “COOL” icon lights up to indicate the cooling function. Mid-season operation allows heating via an electrical resistance that can be modulating or on/off in event of a sudden drop in temperature during the summer.
Mid-season operation with modulating electrical resistance:
OUT
100%

0% I26

WCS C11

Treg

Treg: regulation sensor WCS: calculated cooling setpoint C11: heating insertion differential during summer I27: proportional heating band OUT: supplemental modulating electrical resistance if I05=2 and I21=9 (AO1) or I22=9 (AO2) or I23=9 (AO3)

If Treg < WCS – C11, the supplemental modulating electrical resistance begins to be activated, and the icon lights up and remains on until the temperature rises above this threshold. The supplemental modulating resistance can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action only, if I28=0.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

Mid-season operation with on/off electrical resistance:
OUT I30
100%

Treg 0%
WCS C11
Treg: regulation sensor WCS: calculated cooling setpoint C11: heating insertion differential during summer I31: hysteresis for on/off heating output OUT: supplemental on/off electrical resistance, if I05=1 and I15=8 (DO1) or I16=8 (DO2) or I17=8 (DO3) or I18=8 (DO4) or I19=8 (DO5) or I20=8 (DO6)
If Tref < (WCS – C11 – I31), the supplemental electrical resistance is activated. The icon lights up. If Treg >= (WCS – C11), the supplemental electrical resistance is deactivated, and the icon turns off.
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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· 4-pipe regulation (I01=1)
In 4-pipe mode, the operating season is automatically selected according to the regulation temperature, the 4-pipe room setpoint C03 and the neutral zone C10. Depending on the regulation selected, two setpoints are calculated:
– WHS: heating setpoint=C03 – (C10/2) – WCS: cooling setpoint=C03 + (C10/2)
If the temperature rises above the WCS, the operating season is considered to be cooling, and the “COOL” icon lights up. If the temperature drops below the WHS, the operating season is considered to be heating, and the “HEAT” icon lights up.
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

C10

HEATING

COOLING

Treg

WHS

WCS

Treg: regulation sensor WHS: calculated heating setpoint WCS: calculated cooling setpoint C10: neutral zone

Note: when the unit is switched on, if the Treg temperature is in the neutral zone, the season is considered heating. The mid-season activation parameter M13 has no influence on 4-pipe regulation and is not taken into account.

Modulating heating and cooling regulation:

PI-type regulation operates as follows for modulating regulation:

OUTH

OUTC

100% C10

Treg

I26

WHS WCS I28

Treg: regulation sensor WHS: calculated heating setpoint WCS: calculated cooling setpoint C10: neutral zone I27: proportional heating band I29: proportional cooling band OUTH: heating modulating output:
– modulating valve if I03=2 and I21=2 (AO1) or I22=2 (AO2) or I23=2 (AO3) – modulating electrical resistance if I03=1 and I21=8 (AO1) or I22=8 (AO2) or I23=8 (AO3) OUTC: cooling modulating output: – modulating valve if I04=1 and I21=3 (AO1) or I22=3 (AO2) or I23=3 (AO3)
If the operating temperature drops below the WHS, the heating valve begins to open, or the modulating electrical resistance begins to be modulated. The icon lights up, if a valve is being controlled; the icon lights up for the modulating resistance. The valve or modulating resistance can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action only, if I28=0. The (or ) icon turns off, if the modulating heating valve closes or the electrical resistance is turned off (no longer powered) when Treg >= WHS.

If the operating temperature rises above the WCS, the modulating cooling valve begins to open. The icon lights up. AB Industrietechnik srl Via Julius Durst, 50 39042 BRESSANONE (BZ) Italy Tel: +39 0472/830626 info@industrietechnik.it www.industrietechnik.it 29/128

The valve can be regulated with PI action, if the integral time I30 does not equal 0, or with proportional action only, if I30=0. The icon turns off, if the valve closes when Treg <= WCS.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

Modulating heating regulation and on/off cooling:

PI-type regulation operates as follows for modulating regulation:

OUTH 100%

OUTC

C10

0FF Treg

I26

WHS WCS I31

Treg: regulation sensor WHS: calculated heating setpoint WCS: calculated cooling setpoint C10: neutral zone I32: hysteresis for on/off cooling output I27: proportional heating band OUTH: heating modulating output:
– modulating valve if I03=2 and I21=2 (AO1) or I22=2 (AO2) or I23=2 (AO3) – modulating electrical resistance if I03=1 and I21=8 (AO1) or I22=8 (AO2) or I23=8 (AO3) OUTC: on/off cooling output: – on/off valve if I04=2 and I15=5 (DO1) or I16=5 (DO2) or I17=5 (DO3) or I18=5 (DO4) or I19=5 (DO5) or I20=5 (DO6)

If the operating temperature drops below the WHS, the heating valve begins to open, or the modulating electrical resistance
begins to be modulated. The icon lights up, if a valve is being controlled; the icon lights up for the modulating electrical resistance. The valve or modulating resistance can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action only, if I28=0. The (or ) icon turns off, if the modulating heating valve closes or the electrical resistance is turned off (no longer powered) when Treg >= WHS.

If Treg > (WCS + I32), the cooling valve is activated. The icon lights up. If Treg <= WCS the cooling valve is deactivated, and the icon turns off.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

On/off heating and cooling regulation:

PI-type regulation operates as follows for modulating regulation:

OUTH ON

OUTC

I30

C10

I31

Treg

0FF

WHS

WCS

Treg: regulation sensor WHS: calculated heating setpoint WCS: calculated cooling setpoint C10: neutral zone I31: hysteresis for on/off heating output I32: hysteresis for on/off cooling output OUTH: on/off heating output:
– on/off valve if I03=4 and I15=4 (DO1) or I16=4 (DO2) or I17=4 (DO3) or I18=4 (DO4) or I19=4 (DO5) or

I20=4 (DO6)

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– on/off electrical resistance, if I03=3 and I15=7 (DO1) or I16=7 (DO2) or I17=7 (DO3) or I18=7 (DO4) or I19=7 (DO5) or I20=7 (DO6) OUTC: on/off cooling output: – on/off valve if I04=2 and I15=5 (DO1) or I16=5 (DO2) or I17=5 (DO3) or I18=5 (DO4) or I19=5 (DO5) or I20=5 (DO6)

If Treg < (WHS – I31), the heating valve (or electrical resistance) is activated. The (or ) icon lights up. If Treg >= WHS, the heating valve (or electrical resistance) is deactivated. The (or ) icon turns off.

If Treg > (WCS + I32), the cooling valve is activated. The icon lights up. If Treg <= WCS the cooling valve is deactivated, and the icon turns off.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

On/off heating and modulating cooling regulation:

PI-type regulation operates as follows for modulating regulation:

OUTH

OUTC

I30

C10

I28

100% ON

0FF

0 Treg

WHS

WCS

Treg: regulation sensor WHS: calculated heating setpoint WCS: calculated cooling setpoint C10: neutral zone I31: hysteresis for on/off heating output I29: proportional cooling band OUTH: on/off heating output:
– on/off valve if I03=4 and I15=4 (DO1) or I16=4 (DO2) or I17=4 (DO3) or I18=4 (DO4) or I19=4 (DO5) or I20=4 (DO6) – on/off electrical resistance, if I03=3 and I15=7 (DO1) or I16=7 (DO2) or I17=7 (DO3) or I18=7 (DO4) or I19=7 (DO5) or I20=7 (DO6) OUTC: modulating output: – modulating valve if I04=1 and I21=3 (AO1) or I22=3 (AO2) or I23=3 (AO3)

If the operating temperature rises above the WCS, the modulating cooling valve begins to open. The icon lights up. The cooling valve can be regulated with PI action, if the integral time I30 does not equal 0, or with proportional action only, if I30=0.
The icon turns off, if the cooling valve closes.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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13. 3-point valve
A slave is capable of controlling 3-point valves for 2-pipe or 4-pipe systems.
· 3-point, 2-pipe HEATING regulation (I01=0)
The “HEAT” icon is lit to indicate the heating function.
Define the following settings to use a 3-point heating valve: – Select digital output for controlling the opening of the 3-point on/off heating valve I03=4 and I15=15 (DO1) or I16=15 (DO2) or I17=15 (DO3) or I19=15 (DO5) or I20=15 (DO6), – Select digital output for controlling the closure of the 3-point on/off heating valve I15=16 (DO1) or I16=16 (DO2) or I17=16 (DO3) or I19=16 (DO5) or I20=16 (DO6), – Set the valve stroke time with parameter I52.
The PI-type regulation in heating mode takes place as follows for 3-point on/off regulation:
OUT I26
100%

0
Treg: regulation sensor WHS: calculated heating setpoint OUT: 3-point on/off heating output I27: proportional heating band

WHS

Treg

If the operating temperature drops below the WHS, the valve begins to open. The icon lights up. The on/off 3-point valve can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action only, if I28=0. The icon turns off, if the 3-point valve closes.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

When the controller is switched on, the valve runs through a reset cycle (valve closure) for 120% of the stroke time of the I52 valve before executing the regulation and every 24 hours. The valve runs through a reset cycle every day at 01:00 a.m. before resuming regulation if a THS2 is connected to the THS20MM.

· 3-point, 2-pipe COOLING regulation (I01=0)
The “COOL” icon lights up to indicate the cooling function.

Define the following settings to use a 3-point cooling valve: – Select digital output for controlling the opening of the 3-point on/off cooling valve I04=2 and I15=17 (DO1) or I16=17 (DO2) or I17=17 (DO3) or I19=17 (DO5) or I20=17 (DO6), – Select digital output for controlling the closure of the 3-point on/off cooling valve I15=18 (DO1) or I16=18 (DO2) or I17=18 (DO3) or I19=18 (DO5) or I20=18 (DO6),
– Set the valve stroke time with parameter I52.

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OUT I28
100%

Treg 0
WCS Treg: regulation sensor WCS: calculated cooling setpoint OUT: 3-point on/off cooling output I29: proportional cooling band
If the operating temperature rises above the WCS, the 3-point valve begins to open. The icon lights up. The valve can be regulated with PI action, if the integral time I30 does not equal 0, or with proportional action only, if I30=0. The icon turns off, if the 3-point valve closes.
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.
When the controller is switched on, the valve runs through a reset cycle (valve closure) for 120% of the stroke time of the I52 valve before executing the regulation and every 24 hours. The valve runs through a reset cycle every day at 01:00 a.m. before resuming regulation if a THS2 is connected to the THS20MM.
· 3-point, 4-pipe regulation (I01=1)
Define the following settings to specify a 3-point heating valve: – Select digital output for controlling the opening of the 3-point on/off heating valve I03=4 and I15=15 (DO1) or I16=15 (DO2) or I17=15 (DO3) or I19=15 (DO5) or I20=15 (DO6), – Select digital output for controlling the closure of the 3-point on/off heating valve I15=16 (DO1) or I16=16 (DO2) or I17=16 (DO3) or I19=16 (DO5) or I20=16 (DO6). Define the following settings to specify a 3-point cooling valve: – Select digital output for controlling the opening of the 3-point on/off cooling valve I04=2 and I15=17 (DO1) or I16=17 (DO2) or I17=17 (DO3) or I19=17 (DO5) or I20=17 (DO6), – Select digital output for controlling the closure of the 3-point on/off cooling valve I15=18 (DO1) or I16=18 (DO2) or I17=18 (DO3) or I19=18 (DO5) or I20=18 (DO6), – Set the valve stroke time with parameter I52.
PI-type regulation operates as follows for 3-point regulation:

OUTH

OUTC

100% C10

Treg

I26

WHS WCS I28

If the operating temperature drops below the WHS, the 3-point heating valve begins to open. The icon lights up. The 3-point valve can be regulated with PI action, if the integral heating time I28 does not equal 0, or with proportional action

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only, if I28=0. The icon turns off, if the 3-point heating valve closes when Treg >= WHS. If the operating temperature rises above the WCS, the 3-point cooling valve begins to open. The icon lights up. The 3-point valve can be regulated with PI action, if the integral heating time I30 does not equal 0, or with proportional action only, if I30=0. The icon turns off, if the 3-point valve closes when Treg <= WCS. Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM. When the controller is switched on, the valves run through a reset cycle (valve closure) for 120% of the stroke time of the I52 valve before executing the regulation and every 24 hours. The valves run through a reset cycle every day at 01:00 a.m. before resuming regulation if a THS2 is connected to the THS20MM.
14. Mixed-use valve
The mixed-use valve can be regulated only in 2-pipe mode (I01=0). To specify a mixed-use modulating valve, set parameters I03=2 and I04=1 and choose the modulating output configured as a mixed-use modulating valve I21=4 (AO1) or I22=4 (AO2) or I23=4 (AO3). To specify an on/off mixed-use valve, set parameters I03=4 and I04=2 and choose the digital output configured as mixed- use on/off valve I15=6 (DO1) or I16=6 (DO2) or I17=6 (DO3) or I18=6 (DO4) or I19=6 (DO5) or I20=6 (DO6). Regulation in 2-pipe heating mode (I01=0) is performed according to the logic of paragraph “2-pipe HEATING regulation (I01=0)” page 26 and in cooling mode, according to the logic of paragraph “2-pipe COOLING regulation (I01=0) without mid-season changeover (M13=0)” page 27. To specify a 3-point mixed-use valve, set parameters I03=4 and I04=2 and – select digital output for controlling the opening of the 3-point on/off mixed- use valve I15=19 (DO1) or I16=19 (DO2) or I17=19 (DO3) or I19=19 (DO5) or I20=19 (DO6), – select digital output for controlling the closure of the 3-point on/off mixed-use valve I15=20 (DO1) or I16=20 (DO2) or I17=20 (DO3) or I19=20 (DO5) or I20=20 (DO6). – set the valve stroke time with parameter I52. Regulation in 2-pipe heating mode (I01=0) is performed according to the logic of paragraph “3-point, 2-pipe HEATING regulation (I01=0)” page 32 and in cooling mode, according to the logic of paragraph “3-point, 2-pipe COOLING regulation (I01=0)” page 32.
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15. Supplemental battery logics
The supplemental battery is used as an additional heating stage and can be a modulating resistance (I05=2), or an on/off resistance (I05=1). The supplemental battery uses the regulation sensor and the current working setpoint for regulation. Regulation is proportional if the battery is modulating, and on/off in other cases. Parameter I27 represents the proportional band and parameter I31 the hysteresis of the supplemental heating stage.
· Supplemental modulating battery function:
– Integrative stage with electrical resistance: I05=2 and I21=9 (AO1) or I22=9 (AO2) or I23=9 (AO3).

100%

0% I26

Treg WHS I32

Treg: regulation temperature
WHS: calculated heating setpoint I33: differential between stages I27: proportional heating band

During regulation, the icon lights up, if the signal applied to the supplemental modulating resistance is not equal to 0:
Tsup < WHS – I33. The icon turns off, if the signal applied to the supplemental modulating resistance is equal to 0: Tsup >= WHS – I33. If the main heating stage is an electrical resistance and is still activated, the icon remains on.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

· Supplemental on/off battery function:

– Integrative stage with electrical resistance: I05=1 and I15=8 (DO1) or I16=8 (DO2) or I17=8 (DO3) or I18=8 (DO4) or I19=8 (DO5) or I20=8 (DO6).

I30 100%

Treg

WHS

I32

Treg: regulation temperature WHS: calculated heating setpoint I33: differential between stages I31: hysteresis for on/off heating output

If Treg < WHS -I33 – I31 , the supplemental stage in heating mode is activated, and the icon lights up. If Treg >= WHS – I33, the supplemental stage in heating mode is deactivated. The icon turns off, but if the main heating stage is an electrical resistance and is still activated, the icon remains on.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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16. Pump
In 2-pipe systems, the pump, that deliver water to the fan coil units, can be controlled directly by any unit by selecting a dedicated digital output I15=10 (DO1) or I16=10 (DO2) or I17=10 (DO3) or I18=10 (DO4) or I19=10 (DO5) or I20=10 (DO6). If there is a regulation request for any valve, the pump will be activated. If, on the other hand, there is no valve regulation request, the pump will be deactivated.
17. CO2-based damper regulation
It is possible to regulate a modulating or on/off damper according to the CO2 level in order to implement a renewal of the ambient air. The CO2 level is controlled by a remote CO2 transmitter with 0..10 V output connected on the internal network, or it can be a value provided by the supervisor (virtual transmitter).
· Use of modulating damper:
To use a modulating damper that is regulated according to the CO2 level detected by an air quality transmitter, set up as follows: – connect a remote transmitter TCO2A(-D)-M to the internal network with address=20, baud rate=9600 bit/s, even parity, – select the dedicated modulating output for this mode I21=5 (AO1) or I22=5 (AO2) or I23=5 (AO3), – CO2 setpoint C17, – CO2 proportional band C18. – transmitter present M21=1
To use a modulating damper that is regulated according to the CO2 level provided by the supervisor, input the following settings: – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of CO2 in variable ADR_MOD_FORCE_TRASM_CO2 (11047) between 0 and 2000 (a value of -200 excludes the presence of virtual transmitter). – select the dedicated modulating output for this mode I21=5 (AO1) or I22=5 (AO2) or I23=5 (AO3), – CO2 setpoint C17, – CO2 proportional band C18.
The air renewal signal is calculated according to the curve below:
Val_damper C18

C19
CO2 0
C17
CO2: level of CO2 detected by the remote CO2 air quality transmitter or value forced by the supervisor Val_damper: theoretical percentage of air renewal C17: CO2 setpoint C18: proportional band or CO2 hysteresis C19: minimum opening of modulating damper

When the signal applied to the CO2 > C17 , the damper is regulated proportionally according to the proportional band C18 and

the

icon lights up.

If the CO2 <= C17, the damper takes the position of the minimum opening, and the

icon turns off.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

· Use of on/off damper:
To use an on/off damper that is regulated according to the CO2 level detected by an air quality transmitter, input the following 36/128 AB Industrietechnik srl Via Julius Durst, 50 39042 BRESSANONE (BZ) Italy Tel: +39 0472/830626 info@industrietechnik.it www.industrietechnik.it

settings: – connect a remote transmitter TCO2A(-D)-M to the internal network with address=20, baud rate=9600 bit/s, even parity, – select the dedicated on/off output for this function I15=11 (DO1) or I16=11 (DO2) or I17=11 (DO3) or I18=11 (DO4) or I19=11 (DO5) or I20=11 (DO6), – CO2 setpoint C17, – CO2 proportional band C18. – transmitter present M21 =1 To use an on/off damper adjusted according to the CO2 level provided by the supervisor, input the following settings: – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of CO2 in variable ADR_MOD_FORCE_TRASM_CO2 (11047) between 0 and 2000 (a value of -200 excludes the presence of virtual transmitter) – select the dedicated on/off output for this function I15=11 (DO1) or I16=11 (DO2) or I17=11 (DO3) or I18=11 (DO4) or I19=11 (DO5) or I20=11 (DO6), – CO2 setpoint C17, – CO2 proportional band C18. The air renewal signal is calculated according to the curve below:
Val_damper C18
C19 CO2
0 C17
CO2: level of CO2 detected by the remote CO2 air quality transmitter or value forced by the supervisor Val_damper: theoretical percentage of air renewal C17: CO2 setpoint C18: proportional band or CO2 hysteresis If the CO2 signal > C17, the damper opens, and the icon lights up . If the CO2 signal <= C17 – C18 , the damper closes, and the icons turns off . Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.
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18. Dehumidifier
Dehumidification can be achieved with – an on/off dehumidifier – a modulating dehumidifier
The humidity can be controlled with the humidity sensor inside the optional THS2 connected to a THS2-0MM controller, by a remote humidity transmitter with a 0..10 V output connected to the internal network or with a value supplied by the supervisor (virtual transmitter).
· Use of a modulating dehumidifier:
To use a modulating dehumidifier that is regulated according to the humidity detected by the internal humidity sensor of THS2 connected to a THS2-0MM controller, define the following settings: – select the dedicated modulating output for this mode I21=6 (AO1) or I22=6 (AO2) or I23=6 (AO3), – humidity setpoint C20, – humidity proportional band C21. – set M22=0 on THS2.
To use a modulating dehumidifier that is regulated according to the humidity detected by a remote transmitter, define the following settings: – connect a remote transmitter TUA(-D)-M to the internal network with address=20, baud rate=9600 bit/s, even parity, – select the dedicated modulating output for this mode I21=7 (AO1) or I22=7 (AO2) or I23=7 (AO3), – humidity setpoint C20, – humidity proportional band C21, – transmitter present M21 =1.
To use a modulating dehumidifier that is regulated according to the humidity provided by the supervisor, input the following settings: – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of humidity in variable ADR_MOD_FORCE_TRASM_HUM (11046) – select the dedicated modulating output for this mode I21=7 (AO1) or I22=7 (AO2) or I23=7 (AO3), – humidity setpoint C20, – humidity proportional band C21.
The dehumidify signal is calculated according to the curve below:
% dehum C21
100

C20

H: humidity level detected by the internal or remote humidity sensor or provided by the supervisor % dehum: theoretical percentage dehumidification C20: humidity setpoint C21: proportional band or humidity hysteresis

Regulation is implemented at humidity setpoint C20 and is proportional. When the signal applied to the dehumidifier is not equal to 0, the icon lights up.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

· Use of an on/off dehumidifier:
To use an on/off dehumidifier that is regulated according to the humidity detected by the internal humidity sensor of THS2 connected to a THS2-0MM controller, input the following settings: – select the dedicated on/off output for this mode I15=12 (DO1) or I16=12 (DO2) or I17=12 (DO3) or I18=12 (DO4) or I19=12 (DO5) or I20=12 (DO6), – humidity setpoint C20,
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– humidity proportional band C21. – set M22=0 on THS2.
To use a on/off dehumidifier that is regulated according to the humidity detected by a remote transmitter, input the following settings: – connect a remote transmitter TUA(-D)-M to the internal network with address=20, baud rate=9600 bit/s, even parity, – select the dedicated on/off output for this mode I15=13 (DO1) or I16=13 (DO2) or I17=13 (DO3) or I18=13 (DO4) or I19=13 (DO5) or I20=13 (DO6), – humidity setpoint C20, – humidity proportional band C21, – transmitter present M21 =1.
To use an on/off dehumidifier that is regulated according to the humidity provided by the supervisor, input the following settings: – write the value 22222 to indicate presence of supervisor on variable STATUS_PRESENCE_SUPERVISOR_DISPLAY (11033) – write the value of humidity in variable ADR_MOD_FORCE_TRASM_HUM (11046) – select the dedicated on/off output for this mode I15=13 (DO1) or I16=13 (DO2) or I17=13 (DO3) or I18=13 (DO4) or I19=13 (DO5) or I20=13 (DO6), – humidity setpoint C20, – humidity proportional band C21.
The dehumidify signal is calculated according to the curve below:
% dehum C21
100

C20

Regulation is implemented at the humidity setpoint C20 and is on/off. If the detected humidity > C20 + C21, the dehumidifier is activated, and the If the detected humidity <= C20, the dehumidifier is deactivated, and the

icon lights up. icon turns off.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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19. Fan coil unit with EC motor
The slave units are able to control EC motor via 0..10 V analogue output, with or without a relay for the EC motor. If there is an EC motor relay, the relay output is activated first when the motor is started, while the analogue output remains at 0 V. After 1 second, the analogue output is activated. To control an EC motor, input the following settings: -I06=2 (modulating fan coil unit), – select the analogue output to control the motor I21=1 (AO1) or I22=1 (AO2) or I23=1 (AO3), – for EC motor with auxiliary relay, select the digital output to control the EC motor relay I15=9 (DO1) or I16=9 (DO2) or I17=9 (DO3) or I18=9 (DO4) or I19=9 (DO5) or I20=9 (DO6), Set the EC motor parameters as follows: – set the voltage corresponding to the minimum speed of the EC motor using parameter I37. – set the voltage corresponding to the maximum speed of the EC motor using parameter I38. – set parameters I41, I42 and I43 to specify speeds 1, 2 and 3, respectively. Example: If I37=1V, I38=8V and I41=10%, speed 1 is 1.7V [I41 x (I38 – I37) + I37] Automatic speed regulation occurs linearly between speeds 1 and 3, while manual speed regulation is at the fixed speed selected manually (see “33. Setting parameters using quick access on THS2” page 54). To match speed 1 to the minimum EC motor speed, set I41 to 0. To match speed 3 to the maximum EC motor speed, set I43 to 100. To have speed 2 in the centre between speeds 1 and 3 of the EC motor, set I42 to 50.
· Automatic speed control logic for EC motor with on/off outputs in heating mode
Output I31
ON

OFF Fan
ECM speed 3

WHS

Temp.

ECM speed 1

Temp.

I40

H1 0%

Temp: operating temperature WHS: calculated heating setpoint H1: fan starting point, H1=I31 I31: heating hysteresis I40: EC fan coil unit proportional band
The activation and deactivation of the fan coil unit at speed 1 corresponds to the activation and deactivation of the heating stage.
If Temp < WHS – I31, the fan coil unit activates at speed 1 and, as the temperature decreases, the speed increases linearly (if Temp rises, the fan stops, if Temp >= WHS). If Temp < WHS – I31 – I40, the fan coil unit reaches the maximum speed 3. If Temp >= WHS, heating stage is off. The fan coil unit stops after the minimum switch-off delay I45 has elapsed. If I45=0, a minimum delay of 30 s is applied.
When the fan coil unit is activated at speed 1, the icon lights up. When the speed exceeds the threshold corresponding to the percentage of valve opening defined by parameter I42 (EC motor speed 2), the icons light up.
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When the speed exceeds the threshold corresponding to the percentage of valve opening defined by parameter I43 (EC motor speed 3), the icons light up. Note: If there is a supplemental modulating heating stage (stage 2) with I33 < H1, the starting point of the fan at speed 1 becomes WHS – I33.
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.
· Automatic speed control logic for EC motor with on/off outputs in cooling mode
Output I32
ON

OFF Fan
ECM speed 3

WCS

Temp.

ECM speed 1

I40

Temp.

Temp: operating temperature WCS: calculated cooling setpoint H1: fan starting point, H1=I32 I32: cooling hysteresis I40: EC fan coil unit proportional band

The activation and deactivation of the fan coil unit at speed 1 correspond to the activation and deactivation of the cooling stage.

If Temp > WCS + I32 the fan coil unit activates at speed 1 and, as the temperature increases, the speed increases linearly, (if Temp drops, the fan stops, if Temp <= WCS) If Temp > WCS + I32 + I40 , the fan coil unit reaches the maximum speed 3. If Temp <= WCS, cooling stage is off. The fan coil unit stops after the minimum switch-off delay I45 has elapsed.

When the fan coil unit is activated at speed 1, the icon lights up. When the speed exceeds the threshold corresponding to the percentage of valve opening defined by parameter I42 (EC motor speed 2), the icons light up. When the speed exceeds the threshold corresponding to the percentage of valve opening defined by parameter I43 (EC motor speed 3), the icons light up.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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· Automatic speed control logic for EC motor with 0..10 V or 3-point outputs in heating mode
Output I27
100

0 Fan ECM speed 3

Temp. WHS

ECM speed 1

% opening valve

100%

I39 0%

Temp: operating temperature WHS: calculated heating setpoint I27: proportional heating band I39: starting point of EC fan coil unit (%), if the heating outlet is a valve. If the heating output is an electrical resistance, the starting point for the EC fan coil unit becomes the WHS

Set parameter I39 to specify when to start the motor with respect to the opening percentage of the heating valve. This allows the fan coil unit to be started when the water is already circulating in the fan coil unit battery and has already heated the heating battery.

If the valve opens by the percentage defined by parameter I39, the fan coil unit is activated at speed 1. If the valve continues to open, the speed of the fan coil unit increases to speed 3, when the heating valve is fully open (Temp < WHS – I27). If Temp rises, the valve starts to close, and the fan stops when Temp >=WHS after the minimum switch-off delay I45 has elapsed. If I45=0, a minimum delay of 30 s is applied.

Example: If I39=5%, the motor starts when the modulating output of the valve exceeds 0.5V [I39x10 V]. The fan coil unit is stopped, when the valve closes.

Notes: – The icons indicated are present on an optional THS2 if connected to the THS2-0MM. – If an electrical resistance is being controlled instead of the valve, parameter I39 is no longer considered. If the signal applied to the modulating electrical resistance is not equal to 0, the fan coil unit is started at speed 1 and increases as the signal applied to the electrical resistance increases. If the electrical resistance signal goes to 0, the fan coil unit stops after the minimum switch-off delay I45 has elapsed. If I45=0, a minimum delay of 30 s is applied. If there is a supplemental modulating heating stage (stage 2), and if WHS – I33 corresponds to a higher opening than the minimum valve opening I39, the starting point of the fan at speed 1 becomes WHS – I33.

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· Automatic speed control logic for EC motor with 0..10 V or 3-point outputs in cooling mode
Output I29
100

0 Fan ECM speed 3

WCS

Temp.

ECM speed 1
0% I39 Temp: operating temperature WCS: calculated cooling setpoint I29: proportional cooling band I39: starting point of EC fan coil unit (%)

% opening valve. 100%

Set parameter I39 to specify when to start the motor relative to the opening percentage of the cooling valve. This allows the fan coil unit to be started when water is already circulating in the fan coil unit and has already cooled the cooling battery.

WCS + I29). If Temp decreases, the valve starts to close, and the fan stops when Temp <= WCS after the minimum switch-off delay I45 has elapsed.

Example: If I39=5%, the motor starts when the modulating output of the valve exceeds 0.5V [I39x10 V]. The fan coil unit is stopped, when the valve closes. Once the fan coil unit has started, if the modulating output of the valve continues to increase, the fan coil unit speed increases to speed 3 when the cooling valve is fully open.

Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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20. Fan coil unit with 3-speed on/off motor
The slave units can handle 3-speed on-off type fan coil units. To control a 3-speed motor, input the following settings: -I06=1 (3-speed, on/off fan coil unit), – select digital output to control speed 1 I15=1 (DO1) or I16=1 (DO2) or I17=1 (DO3) or I18=1 (DO4) or I19=1 (DO5) or I20=1 (DO6), – select digital output to control speed 2 I15=2 (DO1) or I16=2 (DO2) or I17=2 (DO3) or I18=2 (DO4) or I19=2 (DO5) or I20=2 (DO6), – select digital output to control speed 3 I15=3 (DO1) or I16=3 (DO2) or I17=3 (DO3) or I18=3 (DO4) or I19=3 (DO5) or I20=3 (DO6). Automatic speed regulation takes place between speeds 1, 2 and 3, while manual speed regulation is at the fixed speed selected manually (see “33. Setting parameters using quick access on THS2” page 54).
· Automatic speed control logic for 3-speed on/off motors with 0..10 V or 3-point outputs in heating mode
Output I27
100

Temp. 0
WHS

Fan speed 3

speed 2

speed 1

100% I43

% opening

0% I39

valve

I42

Temp: operating temperature WHS: calculated heating setpoint I27: proportional heating band I39: starting point of fan coil unit corresponding to the opening I39(%) of the valve, if the heating output at stage 1 is a valve. If the heating output is an electrical resistance, the starting point for the fan coil unit is the WHS. I42: activation of speed 2 at I42(%) valve opening I43: activation of speed 3 at I43(%) valve opening H: hysteresis corresponding to 20% of full valve opening

– Set parameter I39 to specify the valve opening (%) at which speed 1 of the fan coil unit begins. This allows the fan coil unit to be started when the water is already circulating in the fan coil unit battery and has already heated the heating battery.
– Set parameters I42 and I43 to specify the valve opening (%) at which speeds 2 and 3 of the fan coil unit begin. The hysteresis of speeds 2 and 3 is fixed and corresponds to 20% of the full valve opening. The hysteresis of speed 1 corresponds to parameter I39.

Example: If I39=10%, I42=65%, I43=100% Speed 1 is activated at 10% of full valve opening and is deactivated when the valve closes. Speed 2 is activated at 65% and deactivated at 45% of full valve opening. Speed 3 is activated at 100% and deactivated at 80% of full valve opening.
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When speed 1 is on, the icon is lit if display terminal THS2 is connected When speed 3 is on, the icons are lit if display terminal THS2 is connected When speed 3 is on, the icons are lit if display terminal THS2 is connected
Notes: – Verify that the parameters are properly defined I39 < I42 and I42 < I43. – The icons indicated are present on an optional THS2 if connected to the THS2-0MM. – If an electrical resistance is being controlled instead of the valve, parameter I39 is no longer considered. If the signal applied to the modulating electrical resistance is not equal to 0, the fan coil unit is started at speed 1, and the speed increases as the signal applied to the electrical resistance increases according to the previously defined activation points. If the electrical resistance signal goes to 0, the fan coil unit stops after the minimum switch-off delay I45 has elapsed. If I45=0, a minimum delay of 30 s is applied. If there is a supplemental modulating heating stage (stage 2), and if WHS – I33 corresponds to a higher opening than the minimum valve opening I39, the starting point of the fan at speed 1 becomes WHS – I33.
· Automatic speed control logic for 3-speed on/off motors with 0..10 V or 3-point cooling outputs
Output valve I29
100

0 WCS
Fan speed 3

Temp.

speed 2

speed 1

0% I39 I42

100% I43

Temp: operating temperature WCS: calculated cooling setpoint I29: proportional cooling band I39: fan coil unit starting point at valve opening I39(%) I42: activation of speed 2 at I42(%) valve opening I43: activation of speed 3 at I43(%) valve opening H: hysteresis corresponding to 20% of full valve opening

% opening valve

– Set parameter I39 to specify the valve opening (%) at which speed 1 of the fan coil unit begins. This allows the fan coil unit to be started when the water is already circulating in the fan coil unit battery and has already cooled the cooling battery.
– Set parameters I42 and I43 to specify the valve opening (%) at which speeds 2 and 3 of the fan coil unit begin. The hysteresis of speeds 2 and 3 is fixed and corresponds to 20% of the full valve opening. The hysteresis of speed 1 corresponds to parameter I39.

Example: If I39=10%, I42=65%, I43=100% Speed 1 is activated at 10% of full valve opening and is deactivated when the valve closes. Speed 2 is activated at 65% and deactivated at 45% of full valve opening. Speed 3 is activated at 100% and deactivated at 80% of full valve opening. Note: verify that the parameters are properly defined I39 < I42 and I42 < I43

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When speed 1 is on, the icon is lit if display terminal THS2 is connected When speed 2 is on, the icons are lit if display terminal THS2 is connected When speed 3 is on, the icons are lit if display terminal THS2 is connected
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.
· Automatic speed control logic for 3-speed on/off motors with on/off outputs in heating mode
Output I31
ON

OFF

WHS

Temp.

Fan speed 3

I34

speed 2

speed 1

I36

I35

Temp.

Temp: operating temperature WHS: calculated heating setpoint I31: heating hysteresis H1: fan coil unit starting point at speed 1:
H1=max(I31,I34), if stage 1 heating output is a valve H1=I31, if stage 1 heating output is an electrical resistance I34: on/off speed hysteresis I35: differential between speeds 1->2 I36: differential between speeds 2->3

– Select the common I34 hysteresis at speeds 2 and 3 (temperature difference between switching on and off at the same speed).
If I31 <= I34 the hysteresis of speed 1 is I34.
If I31 > I34 the hysteresis of speed 1 is I31. – Set the differential between speeds 1->2 I35. – Set the differential between speeds 2->3 I36. Speed 1 starts up if Temp < WHS – H1 and turns off if Temp >= WHS. Speed 2 starts up if Temp < WHS – H1 – I35 and turns off is Temp >= WHS – H1 – I35 + I34.. Speed 3 starts up if Temp < WHS – H1 – I35 – I36 and turns off if Temp >= WHS – H1 – I35 – I36 + I34.

Notes: – The icons indicated are present on an optional THS2 if connected to the THS2-0MM. – If there is a supplemental modulating heating stage (stage 2) with I33 < H1, the starting point of the fan at speed 1 becomes WHS – I33.

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· Automatic speed control logic for 3-speed on/off motors with on/off outputs in cooling mode
Output I32
ON

OFF

WCS

Temp.

Fan

I34

speed 3

speed 2

speed 1

Temp.

I35

I36

Temp: operating temperature WCS: calculated cooling setpoint I32: cooling hysteresis H1: fan coil unit starting point at speed 1: H1=max(I32 and I34) I34: on/off speed hysteresis I35: differential between speeds 1->2 I36: differential between speeds 2->3
– Select the common I34 hysteresis at speeds 2 and 3 (temperature difference between switching on and off at the same speed). If I32 <= I34 the hysteresis of speed 1 is I34. If I32 > I34 the hysteresis of speed 1 is I32. – Set the differential between speeds 1->2 I35. – Set the differential between speeds 2->3 I36. Speed 1 starts up if Temp > WCS + H1 and turns off if Temp <= WCS. Speed 2 starts up if Temp > WCS + H1 + I35 and turns off if Temp <= WCS + H1 + I35 – I34. Speed 3 starts up if Temp > WCS + H1 + I35 + I36 and turns off if Temp <= WCS + H1 + I35 + I36 – I34.
When speed 1 is on, the icon is lit if display terminal THS2 is connected When speed 2 is on, the icons are lit if display terminal THS2 is connected When speed 3 is on, the icons are lit if display terminal THS2 is connected
Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM.

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21. Manual speeds and ventilation in the absence of regulation
Automatic speed or manual speeds 1, 2 or 3 can be selected for the regulation. See “19. Fan coil unit with EC motor” page 40 or “20. Fan coil unit with 3-speed on/off motor” page 44 for how to select the type of ventilation. If the regulation speed is manual, it remains constant at the set speed once it has been started during the regulation phase. When the setpoint is reached, the fan is stopped, if parameter I47=0. It is possible to maintain speed 1, regardless of the type of speed used for regulation, or one of the manual speeds selected, even if the regulation does not require it. Continuous ventilation is thus maintained to allow the air to circulate. To keep speed 1 active in the absence of regulation in cooling mode, set parameter I47 to 2. To keep speed 1 active in the absence of regulation in heating mode, set parameter I47 to 3. To keep speed 1 active regardless of the operating season and in the absence of regulation, set parameter I47 to 1. To keep the selected manual speed active in the absence of regulation in cooling mode, set parameter I47 to 5. To keep the selected manual speed active in the absence of regulation in heating mode, set parameter I47 to 6. To keep the selected manual speed active regardless of the operating season and in the absence of regulation, set parameter I47 to 4. To turn the ventilation off when the setpoint is reached, set parameter I47 to 0.
22. Fan boost
The boost function eliminates the problem of faulty engine start-up at low speeds. With parameter I46=1, the motor always starts at maximum speed for 1 second and then reaches the speed required by the regulation. If this function is not desired, set parameter I46 to 0. With parameter I46=0, the motor starts directly at the speed requested by the regulation.
23. Minimum thermostat
For all operations in heating mode, if a digital input is used on the optional THS2 connected to the THS2-0MM master M01=7 or M03=7 or on the THS2-0MM I07=6 or I09=6 configured as minimum thermostat or a remote sensor configured as minimum thermostat I11=3 or I13=3, ventilation does not start until the minimum thermostat is considered closed. The contact position and the logic of the digital contact are considered in determining the closure of the minimum thermostat for digital contacts (see “8. Logic of digital and analogue inputs THS2-0MM” page 16 and “43. Logic of digital inputs THS2” page 77). The logic for analogue inputs is as follows:

Minimum thermostat open
C15 2°C

Minimum thermostat closed
C15

Temp. water coil

Temp water coil: heating coil temperature

If the temperature of the heating battery sensor at power-on is between C15 and C15 – 2, the minimum thermostat is considered open. In the absence of electrical resistance, the , and icons light up in sequence, when the minimum thermostat is open during regulation in heating mode.

Notes: – The icons indicated are present on an optional THS2 if connected to the THS2-0MM. – If there is electrical resistance, the minimum thermostat function is not taken into account. The fan is activated immediately when the electrical resistance is activated, even if the minimum thermostat is considered open. In the absence of regulation or in cooling mode, the minimum thermostat is not taken into account.

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Setting done on optional THS2 connected to THS2-0MM master for minimum thermostat has higher priority than setting done locally on a THS2-0MM. So if a digital contact on THS2 connected to THS2-0MM master has the function of minimum thermostat, this contact set the position of minimum thermostat for whole internal network. If no digital contact is used on THS2 connected to THS2-0MM master with the function of minimum thermostat, the setting done locally on a THS2-0MM defines the position of minimum thermostat for that unit only. So for each THS2-0MM there must be a contact with minimum thermostat connected to use this function.

24. Destratification cycle
This function facilitates the prevention of air stratification and a better reading of the temperature of the remote sensor placed on the fan intake. In the absence of regulation, if the fan is off (I47=0), it is possible to start the air destratification function taking the operating season into account. To start the destratification function in both heating and cooling mode, set parameter I48 to 1. To start the destratification function in heating mode only, set parameter I48 to 2. To start the destratification cycle in cooling mode only, set parameter I48 to 3. With the destratification cycle activated, the fan starts at speed 1, and the icon flashes on an optional THS2 connected to a THS2-0MM for a length of time equal to parameter I49 with every time interval set with parameter I50.

25. Window contact

In all operations, if a digital input is used as a window contact on the optional THS2 connected to the THS2-0MM master:

M01=5 or M03=5, or on the THS2-0MM master I07=5 or I09=5, or an analogue input is configured as window contact I11=8 or I13=8, the outputs are all disabled if the window contact is opened.

The icon

flashes when the window contact is considered open.

If an electrical resistance has been activated, the ventilation is stopped after delay I45 has elapsed in order to evacuate the

calories produced by the electrical resistance. If I45=0, a minimum delay of 30 s is applied.

26. Frost protection function of the heating battery

The frost protection function of the heating battery is conducted by means of a regulation sensor. If a THS2-0MM goes into frost protection mode, the heating outputs and the fan coil speed are forced to maximum.
Anti Frost 2°C
ON

OFF C12

Treg

Anti Frost: frost alarm Treg: regulation sensor C12: frost protection setpoint

If the Treg < C12, the frost protection alarm is activated, the and icons flash, and the ALF message appears on the alarm page. If a relay output is configured on a slave with alarm function I15=14 (D01) or I16=14 (D02) or I17=14 (D03) or I18=14 (D04) or I19=14 (D05) or I20=14 (D06), the relay is activated for the duration of the frost protection state.
If Treg >= (C12 + 2°C), the frost protection alarm is deactivated, and the and icons turn off. If a relay output is configured on a slave with alarm function I15=14 (D01) or I16=14 (D02) or I17=14 (D03) or I18=14 (D04) or I19=14 (D05) or I20=14 (D06), the relay is deactivated. Note: the icons indicated are present on an optional THS2 connected to the THS2-0MM. If the regulation sensor on a THS2-0MM is in error, the frost protection function on that unit is deactivated.

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27. Dirty filter
For each THS2-0MM, the dirty filter function facilitates counting the hours of operation of the connected fan and the issuance of a warning message with the icon once the count has exceeded the maximum number of hours defined by parameter I51. In this case, the fan filter is considered clogged and must be changed. Note: the icon indicated is present on an optional THS2 connected to the THS2-0MM. To activate the dirty filter function on a slave, set the maximum number of hours to be counted with parameter I51 to a value other than 0. To disable this function, set I51, the maximum number of hours to count, to 0. With the function activated, the counter for hours of fan operation is stored in memory every 2 hours. To reset the counter of a slave, set parameter I53 to 1. The counter is reset, and parameter I53 automatically changes to 0, and the icon stops flashing until the counter exceeds the value of parameter I51 again. Note: With the function deactivated, the hours of fan operation are not counted.
28. Summertime changeover
The unit is designed to automatically change to and from summertime for some areas of the world. In order to use this function: – Set parameter M08 to 1 if the controller is used in the Europe zone, For all zones other than Europe, set parameter M08 to 0. Summertime cannot be updated automatically in this case. Update summertime based on information from the country concerned.
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29. Remote setpoint variator
On a local THS2-0MM, it is possible to change the setpoint by a shift of ±x °C from the main setpoint by connecting the SAPNTC10-02-2-EV setpoint variator to an analogue input configured as a setpoint variator input: I11=10 for AI1 or I13=10 for AI2. The range of variation ±x °C is defined by parameter M12.
Slave THS2-0MM
CN2

AI1 AI2 GND

12345

10K 10K

POT.
SAP-NTC10-02-2-EV

The heating and cooling working setpoint value obtained after changing the remote setpoint can be displayed on the I/O status if an optional THS2 is connected to the THS2-0MM. By Modbus it is possible to see the value of variation of setpoint directly on variable ADR_MOD_STATUS_CURRENT_OFFSET_VARIATOR (11032).

30. Restoring default parameters
It is possible to reset all parameters excluded parameters for comunication (M17, M18, M19). Writing the value 1 to variable ADR_MOD_RESET_PARAM_TO_DEFAULT (11153) to reset all parameters to default value or press the key SW3 for around 5 s till the red led that is normally flashing stops flashing and remain lit on. Release then the key.
It is possible to reset all parameters included parameters for comunication (M17, M18, M19). Press the key SW3 for around 5 s till the red led that is normally flashing stops flashing and remain lit on. Continue to maintain pressed the key SW3 for other 5 s till the red led lit off continuously. Release then the key.

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31. Optional THS2

The optional THS2 can be connected with each THS2-0MM master or slave of an internal network using connector CN5. If it is connected to a master, it is possible to control all parameters of internal network if M22=0 or 1.

120 term. JP1=ON

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

CN5
MASTER

120 term. JP2=ON GN M
+ M
–
+5V GND

J1 J2 SW3

THS2-0MM

CN4

GND

+ M

If it is connected to a slave, it is possible to control only few parameters if M22=0 or 1:

120 term. JP1=ON

THS2

-+ M M

GND +5V

Ext Adr = Int Adr = SW3 [1]

CN5
SLAVE

120 term. JP2=ON GN M
+ M
–
+5V GND

J1 J2 SW3

THS2-0MM

CN4

GND

+ M

– setpoint,
– offset setpoint if comfort function is activated, – on/off, – speed of ventilator,
Any modification done on these parameters are then transmitted on the whole network by the THS2-0MM master unit.

if THS2 is connected to a THS2-0MM unit the values of internal temperature and humidity of THS2 can be considered for regulation on whole internal network or locally on THS2-0MM unit at which it is connected (see “6. Regulation sensor” page 13). THS2 can also be used as a simple visualizer of the THS2-0MM status if M22=2. The first time THS2 is connected it is necessary for THS2 to establish a connection with the address set.

Adr

Press the keys + simultaneously, the following message appears on the display:

Press the key the current address is flashing. With keys or select the address (set on rotary switch SW3 if J2 is off

or set on parameter M19 if J2 ON) and press the the key to save the selection, then the ESC key to exit connection address setting. If connection is established, the screen displays operating mode.

32. Display, keypad and icons of THS2

MOD E
MODE

888 ESC 8 88:88 Display A
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MODE

flashing steady on with one flash every 5 seconds steady on

flashing

sequence 1

sequence 2

sequence 3

Keypad

sequence 4

ESC

Display B
On/Off Timer extension on Operation within the time band (normal/eco operation) Setting the clock Economy operation on Alarm condition Alarm communication Configuration, setpoints or THS2 parameters menu Operating season THS2-0MM fan hours of operation exceeded alarm Cooling on Frost protection on Dehumidifier on Air exchange on Heating on Electrical resistance on Unoccupied holidays mode
Window open Fan speed M=manual speed selection A=automatic speed selection Display C Displayed slave number on I/O menu and letter `C’ when communication takes place between THS2 and THS2-0MM.
M=manual speed selection A=automatic speed selection Minimum thermostat trigger, power sequencing 1, 2, 3, 4, 1.
On/Off key, navigation and confirmation Setpoint change, navigation and value change keys Speed type key and ESC function in navigation
Key for manually changing season, task or operating mode (see “MODE key function” page 56)

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33. Setting parameters using quick access on THS2

The controller provides the following functions at the touch of a key: · On/Off switch · setting the setpoint and offset setpoint · fan operating mode
· setting the MODE key function

It is possible to associate one quick access function and two normal access functions to the MODE key, depending on parameter M07 (see “MODE key function” page 56) M07=0: season changeover (if local, for 2-pipe systems) M07=1: timer extension M07=2: operating mode (without time bands only if M10=0, with time bands, unoccupied holidays)

· Keypad lock

MODE

To lock the keypad, press the ESC

keys simultaneously; the message LK appears on the display for one second.

The parameters can no longer be accessed by pressing any key, and the message LK appears on the display.

MODE

To unlock the keypad, press the ESC

keys again; the message NLK appears on the display for one second.

· Global on/off

The unit can be switched on and off in four different ways: – by external contact connected on the THS2-0MM master, – by time bands (lower priority) if M10=1 and M14=0,
– manually, using the keypad. To turn the unit on or off manually, press the key until the message ON or OFF appears. – by Modbus via supervisory system (highest priority). The external contact has the highest priority. When it is used, manual on/off and time bands on/off are not considered.

On/off switching via Modbus has the same priority as manual on/off or time bands on/off. This means that unit can be switched off by supervisor and switch on by time bands or manually (if M14=0) or only manually (if M14=1). If unit has been switched off manually it is possible to switch it on by supervisor, manually or by time bands (if M14=0). If unit has been switched off manually it is possible to switch it on by supervisor, or manually (if M14=1).

To use the external contact as on or off, set “remote On/Off” on the THS2-0MM master. Configure I07=2 (DI1) or I09=2 (DI2) or I11=5 (AI1 used as remote DI on/off) or I13=5 (AI2 used as remote DI on/off) using an optional THS2 connected to it or write the corresponding address (see “52. THS2-0MM master Modbus variables” page 90). For instance to
configure I07=2 write the value 2 in address ADR_MOD_DIGINPUT1FUN (11075).

To switch on and off from time bands, configure parameter M10=1, and set the time bands for switch-on (see “36. Operation and setting of TIME BANDS” page 60).
To switch on and off via Modbus write 0 or 1 on variable ADR_MOD_FORCE_MASTERGLOBALONOFF (11048).

If the unit is switched off, the display shows how it was switched off.

OFF
MA

MA = manual shutdown using keypad

OFF
rEM

reM = remote contact shutdown

OFF MOD

MOD = Modbus shutdown

OFF
tiMb

tiMb = shutdown by time bands (if M10=1)

If the unit is switched off, all outputs except the main regulation output in heating mode are deactivated when the frost protection heating function (see “26. Frost protection function of the heating battery” page 49) is triggered.

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· Setting the setpoint and offset setpoint
For 2-pipe regulation, the main setpoint is C01 in heating mode and C02 in cooling mode. For 4-pipe regulation, the main setpoint is C03. The setpoint can be changed on the THS2 unit by pressing the keys or if M11=0. The “set” icon flashes while the setpoint is being changed. If M11=1 (active COMFORT mode used when the application needs to set a setpoint that is not accessible to the user) a change of ±x °C from the setpoint can be set by pressing the key or the key; the “°C” icon flashes. The setpoint can then only be changed by accessing the setpoint parameters using password 22. The maximum setpoint variation for ±x °C is defined by parameter M12. Each change made with the or keys is saved automatically. It is possible to change the setpoint locally on a slave by a shift of ±x °C from the main setpoint by connecting the SAPNTC10-02-2-EV setpoint variator to an analogue input configured as a setpoint variator input: I11=10 for AI1 or I13=10 for AI2. To exit the setpoint setting menu, wait 4 seconds or press the ESC key.
· Fan operating mode
Press the ESC key; the icon flashes along with the operating mode indicator of the fan coil unit on display B. Press the ESC key one or more times to select the operating mode of the fan coil unit:
AUtO = automatic regulation, SPE1 = regulation at speed 1, SPE2 = regulation at speed 2, SPE3 = regulation at speed 3,
The value is saved automatically. To exit the menu, wait 4 seconds until display B stops flashing.
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· MODE key function

MODE

The quick access function is selected by pressing the MODE key based on the value of parameter M07. The other 2 functions can still be accessed by pressing the ESC keys.

Access the quick function with the MODE key:

MODE

· If M07=0 (quick access to local season changeover setting, if no contact is configured as remote season changeover on master and slave units)
Press the key; the “HEAT” (for heating) or “COOL” (for cooling) icon flashes according to the current setting, and the same flashing message appears on display B.
Press the key to change the setting. The value is saved automatically. To exit the menu, wait 4 seconds or press the
ESC key.

MODE

· If M07=1 (quick access to timer extension setting) The timer extension function extends operation with the base setpoint, excluding the economy function and the “unoccu-
pied holidays” function, for a time corresponding to parameter M09 if the time band function parameter M10=0. With M10=1 (time bands for switching on and off), the timer extension function extends the ON operation by excluding the bands for a time corresponding to parameter M09.

MODE

noOC OC Press the key; the message

flashes on display B (to stop the timer extension, if it has started) or the message

on display B and the icon flashes (to activate the timer extension).

MODE

Press the key to change the setting. The value is saved automatically.

To exit the menu, wait 4 seconds or press the ESC key.

· If M07=2 (quick access to operation mode setting) The operating mode function allows for the selection of regulation either with or without time bands (if the parameter M10=0, regulation is with time bands, see “36. Operation and setting of TIME BANDS” page 60) or in “unoccupied holidays” mode (see “10. Working setpoint, economy and unoccupied holidays mode” page 21).

MODE

If M10=0, time band function for normal/economy operation:
press the key; the following message flashes:
nOrM on display B (to regulate without time bands) or tiMb on display B and the icon (to regulate with normal/economy time bands) or HOLY on display B and the icon (to regulate in “unoccupied holidays” mode).
If M10=1, time band function for switching the unit off and on:
press the key; the following message flashes:
nOrM on display B (to regulate with time bands) or HOLY on display B and the icon (to regulate in “unoccupied holidays” mode).

MODE

Press the key one or more times to select the regulation mode. The value is saved automatically.

To exit the menu, wait 4 seconds or press the ESC key.

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MODE MODE

Access to non-quick functions with the ESC keys:
If the quick access function of the MODE key is set to local season changeover (M07=0), to access the other functions, press the ESC and keys simultaneously to enter the menu for modifying the timer extension and operating mode functions:

Parameter Description

Timer extension

noOC=without timer extension

OC=with timer extension (for the duration corresponding to parameter

MOC

M09):

-The economy function and the unoccupied holidays function are ex-

cluded if M10=0.

– The unit stays on, if M10=1.

Operating mode with M10=0:

nOrM=operation without time bands

tiMb=operation with time bands

MOD

HOLY=unoccupied holidays operation

Operating mode with M10=1:
nOrM=time band mode HOLY=unoccupied holidays operation

Default

Min

Max

noOC noOC OC

nOrM nOrM, tIMb, HOLY nOrM nOrM, HOLY

Press the or key to select a parameter and the value of the parameter. Press the or key to change the setting.

key to enter edit mode; display B flashes with the current

Press the key to save the settings, or the ESC key to exit without saving the changes.

To exit the menu, press the ESC key again or wait approximately 10 seconds.

If the timer extension function is on, the icon flashes for the duration of parameter M09. If the timer extension function has been turned off, the icon is off.

If the quick access function of the MODE key is set to timer extension (M07=1), to access the other functions, press the

MODE

and ESC keys simultaneously to enter the menu for modifying the operating mode and season changeover functions:

Parameter Description

Default

Min

Max

Local season changeover (local season changeover setting for 2-pipe

SEA

systems):
HEAT=heating mode

HEAT HEAT COOL

COOL=cooling mode

Operating mode with M10=0:

nOrM=operation without time bands

tiMb=operation with time bands

MOD

HOLY=unoccupied holidays operation

nOrM nOrM, tIMb, HOLY

Operating mode with M10=1:
nOrM=time band mode HOLY=unoccupied holidays operation

nOrM nOrM, HOLY

Press the or key to select a parameter and the value of the parameter. Press the or key to change the setting.

key to enter edit mode; display B flashes with the current

Press the key to save the settings, or the ESC key to exit without saving the changes.

To exit the menu, press the ESC key again or wait approximately 10 seconds.

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MODE

If the quick access function of the MODE key is set to operating mode (M07=2), to access the other functions, press the and ESC keys simultaneously to enter the menu for modifying the season changeover and timer extension functions:

Parameter Description

Local season changeover (local season changeover setting for 2-pipe

SEA

systems):
HEAT=heating mode

COOL=cooling mode

Timer extension

noOC=without timer extension

OC=with timer extension (for the duration corresponding to parameter

MOC

M09):

– The economy function and the unoccupied holidays function are ex-

cluded, if M10=0.

– The unit stays on, if M10=1.

Default

Min

HEAT HEAT

noOC noOC

Max
COOL
OC

Press the or key to select a parameter and the value of the parameter. Press the or key to change the setting.

key to enter edit mode; display B flashes with the current

Press the key to save the settings, or the ESC key to exit without saving the changes.

To exit the menu, press the ESC key again or wait approximately 10 seconds.

34. Timer extension or forced presence mode

This function can only be used using a THS2 connected to a THS2-0MM master in the internal network. If time bands are used for the “energy saving” function (M10=0) when the “energy saving” or “unoccupied holidays” function is used, the working setpoints are calculated taking parameters C08 (economy offset) and C09 (“unoccupied holidays” operating mode offset) into account. These functions can be bypassed while continuing regulation with the basic setpoints for a specified time (parameter M09). To bypass these functions, set the timer extension manually using the MODE key (see “33. Setting parameters using quick access on THS2” page 54).
If, on the other hand, time bands are used to switch the unit on or off M10=1, if the timer extension function is activated by the MODE key, the unit does not take the time bands into account and keeps the unit on for the time corresponding to parameter M09, if the extension function has been set using the keypad. To activate the timer extension function manually, set parameter
OC MOC to (see “MODE key function” page 56). Once activated, the time defined by parameter M09 elapses before returning
to normal operation.
If the timer extension function is on, the icon flashes for the duration of parameter M09. If the timer extension function has been turned off, the icon is off.

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35. Setting DATE and TIME

CLK
yMdH

y-r
2012

Press the and keys simultaneously. The message CLK appears on display A and yMdH on display B. Press the key to enter the date and time setting menu.

M-h
11
day
29
Hr.
11:37

Parameter Description

CLk

Date and time setting menu

Y-r

Year

M-h

Month

day

Day

Hours
Hr.
Minutes

Min Max

2012 1 1 0 0

2100 12 31 23 59

Press the or key to select a parameter to modify and the value of the parameter. Press the or key to change the setting.

key to enter edit mode; display B flashes with the current

Press the key to save the settings or the ESC key to exit without saving the changes

References

Country Selection — ITK

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Industrie technik THS2 Series Room Controller Evolution Split Instruction Manual

THS2 Series Room Controller Evolution Split

Product Information: Room Controller Evolution Split THS2

Product Usage Instructions:

References

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