argo AIM08EMX Domestic Air To Water Heat Pump User Manual

: June 13, 2024
: argo

Table of Contents

AIM08EMX Domestic Air To Water Heat Pump
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AIM08EMX Domestic Air To Water Heat Pump

CONTROL PANEL’S USER MANUAL EN MANUALE D’USO PANNELLO DI CONTROLLO IT MODE D’EMPLOI DU PANNEAU DE CONTROLE FR
Control panel for air to water Inverter heat pump Pannello di controllo per pompa di calore Inverter aria / acqua Panneau de contrôle pour pompe à chaleur Inverter air / eau
37.4254.086.09 10/2021

EN CONTENTS
1 – Presentation of control elements ……………………………………………………………………………….. 2 2 – Operation………………………………………………………………………………………………………………… 3 3 – Settings ………………………………………………………………………………………………………………….. 5 4 – Graphs ………………………………………………………………………………………………………………….. 11

1 – PRESENTATION OF CONTROL ELEMENTS
CONTROL PANEL
BUTTONS BUTTON ON/OFF – BACK TO THE PREVIOUS MENU
BUTTON UP BUTTON DOWN SET SETTINGS BUTTON

DISPLAY – MAIN SCREEN WITH UNIT SWITCHED ON
ON: HEAT PUMP IN OPERATION OFF: HEAT PUMP STOPPED BLINKING: HEAT PUMP IS STARTING
RETURN WATER TEMPERATURE

ON: PUMP IN OPERATION OFF: PUMP STOPPED

35 . 0°C [35 . 0°C]

ON: BACKUP HEATING ACTIVE OFF: BACKUP HEATING NOT ACTIVE

RETURN WATER SETPOINT

ON: “ECO” OPERATION ACTIVE OFF: “ECO” OPERATION NOT ACTIVE

2

2 – OPERATION

EN

2.1 – SWITCHING THE UNIT ON/OFF

· When the unit is powered, the following screen appears:

– – – – – – –

· To turn on the unit, press and hold the button sequentially:

for 3 seconds. The following two screens will appear

UNIT MODEL
model r 01 D I SPLAY r 01
DISPLAY OR REMOTE

SOFTWARE VERSION OF THE UNIT
SOFTWARE VERSION OF THE DISPLAY

· Then the main screen will appear:
35 . 0°C [35 . 0°C]

3

EN

· To turn off the unit, press and hold the button sequentially:

for 3 seconds. The following two screens will appear

– – – – – – –
NOTE: Once the unit has been switched off, the water pump may continue to operate in order to prevent frost in the pipes.
2.2 – SETPOINT MODIFICATION (RETURN WATER TO THE UNIT)
If the fixed setpoint has been selected (P05 = 1, see parameter list), you can set the setpoint manually. To change the setpoint, press the buttons or until the desired setpoint is displayed in the second line.
2.3 – KEYBOARD LOCKED / UNLOCKED
To lock the keyboard so that it is not possible to accidentally press the buttons, press the buttons and simultaneously for 3 seconds. The following screen will appear:
KEYBOARD LOCKED
Repeat the same operation to unlock the keyboard. The following screen will appear:
KEYBOARD UNLOCKED
2.4 – DEFROST
During the defrost cycles of the unit, the following screen will appear:
35 . 0°C DEFROST
The first line will display the return water temperature. 4

3 – SETTINGS

EN

3.1 – USER PARAMETERS SETTING – LEVEL 1

· Press the SET button once to enter the menu level 1 (see table):

Name Pump Speed selection
Water ow Sensors reading Working mode selection Error List Language selection

Description

Notes

Select the water pump speed and Once desired speed has been se-

read back the corresponding water ow

lected, press button the selection

to confirm

Water ow level bar

List of main sensors reading

RWT, SWT, OAT, Water Flow, Pump Speed

HEAT: heating mode selected COOL: cooling mode selected

Selection available only if P14 = 1 See parameter P04

List of last 10 errors

Hold button for 5 seconds to delete the list (possible only if P07 = 1)

0= French 1= English 2= Italian

See parameter P08

· Utilise buttons or to select the desired parameter. · Press SET to visualise or modify the selected parameter. · Press SET to confirm any changes.
· Press the button to return to the previous menu.

3.2 – AUTHORIZED SERVICE CENTER PARAMETERS SETTING – LEVEL 2
· Press and hold SET button for 3 seconds to enter the menu level 2 (see table on the next page). · The parameter for the setting of the pump mode will be displayed. · Press SET to modify the pump mode (see P03) or press buttons or to enter the parameter list (the list
is accessible only by password). · Enter the password and confirm with the SET button. · Press buttons or to scroll through the parameters. · Press SET to visualise the selected parameter. · Press and hold SET button for 3 seconds to modify the parameter. The parameter value will blink to indicate
the change in progress. · Press buttons or to change the parameter value.
· Press SET to confirm or to cancel.
· Press the button to return to the previous menu.
LEGEND OF ACRONYMS (CONTAINED IN THE PARAMETER TABLES)
DHW: DOMESTIC HOT WATER RWT: RETURN WATER TEMPERATURE SWT: SUPPLY WATER TEMPERATURE OAT: OUTDOOR AIR TEMPERATURE ICT1: OUTLET (HEAT) / INLET (COOL) HEAT EXCHANGER (PLATE-TYPE) ICT2: INLET (HEAT) / OUTLET (COOL) HEAT EXCHANGER (PLATE-TYPE) OCT: OUTDOOR COIL TEMPERATURE CDT: COMPRESSOR DISCHARGE TEMPERATURE CTST: COMPRESSOR TOP SHELL TEMPERATURE ICP: CONDENSING PRESSURE (HEAT) / EVAPORATING PRESSURE (COOL) C/E: CONDENSING TEMPERATURE (HEAT) / EVAPORATING TEMPERATURE (COOL)
5

3.2.1 – SETTING OF GENERAL PARAMETERS
EN
6

Num. Description

Unit Floor

Default value

Range

Fan coils Radiators Min. Max.

Increment

Value description

Notes

– Sensors reading

Read only

RWT – SWT – OAT – C/E – ICT1 – ICT2 – OCT CDT – CTST – ICP Water ow Pump speed Fan speed

List of all the sensors’ values

P02 On-Off hysteresis °C 1.5

1.5

0.5

10

0.5 Hysteresis of heat pump restart on the return See graph “ON/OFF HYSTERESIS” water temperature

P03 Water pump mode

–

Auto (0) Auto (0) Auto (0) Auto (0) ON (1) 1

AUTO= Auto mode ON= Water pump always ON

P04 Working mode –

Heat (0) Heat (0) Heat (0) Heat (0) Cool (1) 1

HEAT= heating mode selected COOL= cooling mode selected

Selection available only if P14 = 1

P05 Setpoint mode –

0

1

0= Automatic setpoint (climatic curve)

In 2-zones application, if auto mode is selected

1= Fixed setpoint (user selection)

the warmest (heating mode) or the coldest (cooling

mode) setpoint is selected

P06 Secondary water –

0

1

0= Unit pump only

pump

1= Secondary pump installed (primary/second-

ary circuit)

P07 Error list reset

–

0

1

0= Error list reset forbidden

enable

1= Error list reset allowed

If P07 = 1 go to the error list and hold the button
for 5 seconds to clear the list

P08 Language

–

English (1) English (1) English (1) 0

2

1

0= French

1= English

2= Italian

P09 Backup heating –

0

3

1

0= Backup heating disabled

Values 2 and 3 are valid only for units equipped

mode

1= External backup heating enabled

with backup heating

2= Internal backup heating enabled

3= External + Internal backup heating enabled

P10 Backup heating Min. 20

20

5

120

1

Time of heat pump functioning before backup Valid only if P40 < OAT < P12

delay

heating activation

See graph “OPERATING RANGE OF HEAT PUMP/

BACKUP HEATING”

P11 Boost mode

–

0

1

0= Boost mode disabled

1= Boost mode activated

If P11 = 1, backup heating (according to P09) will be immediately activated up to the setpoint, then P11 is automatically reset to 0

P12 Backup heating °C 0

0

P40

+35

1

Heating mode:

threshold

OAT > P12: backup heating disabled

OAT < P12: backup heating enabled

See graph “OPERATING RANGE OF HEAT PUMP/ BACKUP HEATING”

P13 DHW valve delay Sec. 15

15

300

5

Time to move the DHW valve from one posi-

tion to the other

EN
7

Num. Description
P14 Working mode selection
P20 Alarm contact function

Unit Floor

–

0

–

0

P21 DHW contact

–

0

function

P22 Secondary setpoint

°C 50

P23 Maximum DHW h

5

production time

P30 Minimum heating Min. 60 time of the system

P31 Antifreeze func- °C 1 tion threshold

P32 Antifreeze threshold (P31) hysteresis
P33 Minimum water ow

°C 1 m3/h 0,3

P40 Heat pump threshold

°C -20

P41 Defrost

–

0

P50 Factory default –

0

reset

P51 Maximum heat °C 58 pump setpoint

P52 Return water

°C 15

minimum tempe-

rature

Default value

Fan coils Radiators

0

Range Min. Max. 01 06
01

Increase 1 1
1

Value description
0= Working mode selected by thermostat 1= Working mode selected with P04
0= Alarm 1= Defrost 2= Alarm or defrost 3= DHW 4= Alarm or DHW 5= Defrost or DHW 6= Alarm o defrost or DHW
0= DHW 1= Secondary setpoint

50

5

60

1

20 58 0,5 1 24 1 10 120 5

-20 +35 1

15

0,5

Setpoint used if P21 = 1 and DHW contact is closed
Minimum system heating time after DHW production
If OAT < P31, antifreeze function is activated in order to avoid water freezing in the pipings. Hysteresis on P31

0,4

-20

0

58

15

0,3 4,0 0,1 -20 P12 1

01

1

01

1

20 58 0,5

5 20 1

Minimum water ow threshold
Heating mode: OAT < P40: heat pump disabled OAT > P40: heat pump enabled
If P41 is set to 1 and unit is running in heating mode, a defrost will start. At the end of defrost cycle P41 is automatically reset to 0
If P50 is set to 1, all parameters will be reset to the default value. After the reset has been done, P50 is automatically reset to 0
Maximum setpoint for the heat pump. If calculated setpoint is > P51, heat pump will stop when P51 is reached and setpoint can only be reached with backup heating (if enabled).
Heating mode: RWT < P52: heat pump disabled and backup heating activated. RWT

P52: heat pump enabled.

Notes
If P21= 0, when DHW contact is closed the unit will automatically manage the DHW production. If P21 = 1, when DHW contact is closed the unit will use the secondary setpoint P22 (heating only).
Valid if there is a system request See graph “ANTIFREEZE FUNCTION” See graph “ANTIFREEZE FUNCTION” If water ow drops below P33, water ow error will appear and the unit will stop See graph “OPERATING RANGE OF HEAT PUMP/BACKUP HEATING”
See graph “RETURN WATER MINIMUM TEMPERATURE PROTECTION”

EN
8

Num. Description P53 Special command
P60 Eco mode power limit
P61 Eco mode enable
P62 DHW mode

Unit

Floor

Default value Fan coils Radiators

Range Min. Max.

Increase

Value description

–

0

0 999 1

0= Special command desabled 1= Air purge function activation

% 75

75

30 100 1

–

1

–

0

01

1

02

1

0= Eco mode command disabled 1= Eco mode command enabled
0= ECO 1= AUTO 2= FAST

Notes
ECO: maximum efficiency FAST: maximum yield AUTO: ECO if ON/OFF contact is open
FAST if ON/OFF contact is closed

9

Num. P101 P105 P106 P120 P121 P123 P130 P131
P132
P150
P151 P152 P160 P161

Description

Unit

Plant type

–

(single zone or zone 1)

Maximum climatic

°C

curve setpoint

(single zone or zone 1)

Minimum climatic

°C

curve setpoint

(single zone or zone 1)

Temperature for maxi- °C mum setpoint (single zone or zone 1)

Temperature for mini- °C mum setpoint (single zone or zone 1)

Cooling setpoint

°C

(single zone or zone 1)

Calculated setpoint °C (single zone or zone 1)

Lowest cooling

°C

setpoint with 0-10V

control

(single zone or zone 1)

Highest cooling

°C

setpoint with 0-10V

control

(single zone or zone 1)

0-10V signal function (single zone or zone 1)

Maximum 0-10V

°C

setpoint shift

Manual setpoint shift °C

Mixing valve delay

sec

Mixing valve control type

Floor
35 20 -7 17 23
23
30
0
5 0 60 0

Default value

Range

Fan coils Radiators Min. Max.

0

2

45

50

30 55

35

40

20 40

-7

-20 P121

17

P120 +35

12

–

10 30

Read only

12

–

10 P132

30

–

P131 30

0

4

5

0

60

0

1

10

0

10

30 300

0

1

Increase 1 0,5 0,5 0,5 0,5 0,5
0,5
0,5
1
0,5 0,5 5 1

Value description 0= Under oor 1= Fan coil 2= Low temperature radiators
0= Disabled 1= Thermal load 2= Setpoint command 3= Thermal load on outdoor unit 4= Setpoint command on outdoor unit
0 = 230 Vac control (2 or 3 points) 1 = 0-10V control

Notes
When P101 is changed, P105 / P106 / P120 / P121 P123 are reset to the corresponding default value.
Only for heating mode See graph “CLIMATIC CURVE”
See graph “CLIMATIC CURVE”
Set to the minimum expected regional temperature See graph “CLIMATIC CURVE”
If P121 < P120, P120 is automatically set to P121 See graph “CLIMATIC CURVE”
In cooling mode the setpoint is fixed and it corresponds to P123
Active only if P150 = 1, it corresponds to a signal of 10V See graph “0-10V CONTROL”
Active only if P150 = 1, it corresponds to a signal of 0V. If P132 < P131, P132 is automatically set to P131 See graph “0-10V CONTROL”
If P150 = 3 or 4, 0-10V signal is read on outdoor unit only and signals on zone 1 and 2 will be ignored See graph “0-10V CONTROL”
Active only in heating mode and if P150 = 1. It represents the shift on the setpoint with a signal of 10V. (See graph “0-10V CONTROL”) Climatic curve manual setpoint shift in heating mode

EN

· To set the single zone or zone 1 use parameters from P101 to P161 (see table).

3.2.2 – SETTING OF SINGLE ZONE OR ZONE 1

10

Num. Description
P201 Plant type (zone 2)

Unit Floor
–

P205 Maximum climatic curve °C 35 setpoint (zone 2)

P206 Minimum climatic curve setpoint (zone 2)

°C 20

P220 Temperature for maximum °C -7 setpoint (zone 2)

P221 Temperature for minimum °C 17 setpoint (zone 2)

P223 Cooling setpoint (zone 2)

°C 23

P230 Calculated setpoint (zone 2)

°C

–

P231 Lowest cooling setpoint with 0-10V control (zone 2)

°C 23

P232 Highest cooling setpoint °C 30 with 0-10V control (zone 2)

P250 0-10V signal function (zone 2)

–

0

P251 Maximum 0-10V setpoint °C 5 shift

P252 P260 P261

Manual setpoint shift Mixing valve delay Mixing valve control type

°C 0

sec 60

–

0

Default value Fan coils Radiators
0

Range

Min. Max.

0

2

45

50

30 55

Increase

Value description

1

0 = Under oor

1 = Fan coil

2 = Low temperature radiators

0,5

35

40

20

40

0,5

Notes
When P201 is changed, P205 / P206 / P220 / P221 P223 are reset to the corresponding default value.
Only for heating mode See graph “CLIMATIC CURVE” See graph “CLIMATIC CURVE”

-7

-20 P221 0,5

17

P220 +35 0,5

12

–

10

30

0,5

–

Read only

Set to the minimum expected regional temperature See graph “CLIMATIC CURVE”
If P221 < P220, P220 is automatically set to P221 See graph “CLIMATIC CURVE”
In cooling mode the setpoint is fixed and it corresponds to P223

12

–

10 P232 0,5

Active only if P250 = 1, it corresponds to a signal of 10V. See graph “0-10V CONTROL”

30

–

P231 30

0,5

Active only if P250 = 1, it corresponds to a signal of 0V. If P232 < P231, P232 is automatically set to P231 See graph “0-10V CONTROL”

0

2

1

0 = Disabled

1 = Thermal load

2 = Setpoint command

If P250 = 3 or 4, 0-10V signal is read on outdoor unit only and signals on zone 1 and 2 will be ignored. See graph “0-10V CONTROL”

5

1

10

0,5

Active only in heating mode and if P250 = 1. It represents the shift on the setpoint with a signal of 10V. (See graph “0-10V CONTROL”)

0

10

0,5

Climatic curve manual setpoint shift in heating mode

60

30 300 5

0

1

0 = 230 Vac control (2 or 3 points)

1 = 0-10V control

· To set zone 2 use parameters from P201 to P261.

EN

3.2.3 – SETTING OF ZONE 2

4 – GRAPHS

4.1 – ON/OFF HYSTERESIS

HEATING OPERATION
P02

Heat pump ON

Heat pump OFF

P130 (setpoint)

Return water temperature

COOLING OPERATION
P02 Heat pump ON
Heat pump OFF
P130 (setpoint)

4.2 – OPERATING RANGE OF HEAT PUMP/BACKUP HEATING

EN
Return water temperature

Backup heating only

Heat pump +
backup heating

Heat pump only

P40

P12

– 20°C

0°C

Outdoor air temperature

NOTE The operation of the heat pump is prevented if the outside temperature is below the stop threshold (parameter 40). Only the backup heating is authorized.

4.3 – CLIMATIC CURVE (HEATING MODE)

Return water setpoint

P105

Y
P106 P120

P130 (setpoint)

X

P121

Outdoor air temperature

4.4 – ANTIFREEZE FUNCTION

P32 Atifreeze function activated
P31

Atifreeze function not activated

Outdoor air temperature

If the antifreeze function is active:

Unit in forced function for water heating

Unit in normal operation

5°C

15°C

Return water temperature (RWT)

11

EN
4.5 – 0-10V CONTROL

Return water setpoint

Thermal load (P150 = 1)

P105

Y+Z

P130 (setpoint)

Z = P151 * (0-10V)%
Y

P106

P120

X

P121

Example: P151 = 5°C 0-10V signal = 6V = 60% Z = 5°C * 60% = 3°C
Outdoor air temperature

Setpoint command (P150 = 2)

Return water setpoint
P105
Y
P106 0V
Return water setpoint
P132
Y
P131 0V

HEATING

P130 (setpoint)

X

10V

COOLING
P130 (setpoint)

X

10V

0-10V 0-10V

NOTE: The graphs referring to the parameters of zone 1 are the same for zone 2 with the corresponding parameters.

12

EN
4.6 – RETURN WATER MINIMUM TEMPERATURE PROTECTION

Heat pump disabled and activation of backup heating

2°C

Heat pump

enabled

P52
Default: 15°C

Return water temperature (RWT)

NOTE
A water temperature safety (system return) prevents the heat pump from operating if the temperature is lower than the heating authorization threshold with the heat pump (parameter 52). In this case, only the electric backup heating is authorized to raise the water temperature and allow the heat pump to operate, at any external temperature. If the backup heating is not installed (P09 = 0) this protection is not active. For this reason, the heat pump stops and the display will show the writing: RWT < P52

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