TOSHIBA VN-U00151SY-E Air to Air Heat Exchangers Instruction Manual

Outdoor unit

U3 U4

U3 U4

L1
U3 U4

U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U5 U6
L4

L2

L3

[Communication line] (L1 + L2 + L3) = Up to 2000 m L4 = Up to 100 m

Heat recovery ventilation unit

U3 U4 Uh

AB

U3 U4 Uh

AB

Indoor unit

U1 U2

U1 U2

U1 U2

U1 U2

Uv

Uv

Uv

Uv

AB

AB

AB

AB

(*1)

Remote controller

U3 U4 Uh

AB

U3 U4 Uh

AB

Heat recovery ventilation unit

*1. This connection is prohibited. Connect the Heat recovery ventilation unit (U series) with U3 and U4 line.

*1. This connection is prohibited. Because central controller cannot recognize Heat recovery ventilation unit and cannot operate Heat recovery ventilation unit at all. (Heat recovery ventilation does not appear in central controller.)

25-EN

26-EN

Remote controller wiring

· 2-core with non-polarity wire is used for the remote controller wiring and group remote controllers wiring.

Remote controller wiring, remote controller inter-unit wiring

Wire size: 0.5 to 2.0 mm²

Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + … Ln

In case of one remote controller
In case of two remote controller

Max. length of each remote control wiring between indoor units = L1, L2, …, Ln

Up to 500 m Up to 300 m Up to 200 m

CAUTION
· The remote controller wire (Communication line) and AC 208 to 240 V wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or other factor.
· If U series models (TU2C-Link) are combined with models other than U series (TCC-Link), the wiring specifications and maximum number of connect-able indoor units will be changed. Pay attentions to their communication specifications when carrying out the installation, maintenance, or repair. For its details, refer to the “Communication line” in “6. Electrical connection”.

Heat recovery ventilation unit
Remote controller L wiring
Remote controller

Heat recovery ventilation unit

Heat recovery ventilation unit

Heat recovery ventilation unit

L1

L2

Remote controller inter-unit wiring

Ln
For number of Max. connect-able units, refer to the following table.

Max. number of connect-able indoor units, and communication type

Unit type

Outdoor unit

U series U series U series U series

Indoor unit (including Heat recovery ventilation unit)

U series

U series

U series U series

Remote controller Remote sensor

U series

U series

U series

U series

Communication type

TU2C-Link

TCC-Link

Max. number of connect-able units

16

8

• DN code setting of Heat recovery

Not

ventilation unit about

necessary

communication type

• DN code

(factory

default)

Necessary * DN code FC: 0000

: Other than U series

REQUIREMENT
After carrying out installation of additional indoor unit, relocation, or repairing, set the addresses again. For its detail, refer to the Installation Manual attached to the outdoor unit.

Wire connection

Remove the 2 screws and loosen the 2 screws on the front surface of the electric control cover to open the
cover.
· Make a cut in the bushing and connect the power supply wire (R (L), S (N)) and the remote controller wire (A, B). · Connect the central control wire U3, U4 or the external output terminal block (1 to 5) if necessary. · Tighten the screws on the terminal board firmly, then fix the wiring on the electrical control box using the
accessory cord clamp. · Perform grounding work. · Attach the electrical control cover so that wires are not pinched. · Refer to “7. Installation method for each system configuration” about setting the switch and DN setting. · After wiring is completed, stick the seal material over the bushing. The seal material is accessory parts.

Screw (Remove) Electrical control box

After connecting the wire, cut the attached seal material as the drawing, and stick on the wire connecting port.
Cut

Screw (Remove)

Electrical control cover

Attached seal material

Screws (Loosen)

Communication wire terminal block Wiring for the central control (U3, U4) Wiring for the remote controller (A, B)
Power supply terminal block (R(L), S(N))

RS

Electrical control box Ground screw Cord clamp Remote controller wire In a central control system, connect the copper braid shield of central control wire (2-core shielded wire).
Central control wire
Bushing
Earth screw
Power supply wire

Select side C or D for the cord clamp position referring to the following table according to the cable type and diameter. * Cord clamp can be attached on either right or left side. When twin system are connected, clamp two cables with one cord clamp.

Wire type Cabtyre cable Cabtyre cable

Specification 3-core stranded wire 2.5 mm² 3-core stranded wire 1.5 mm²

Cord clamping position
Side C
Side D

Side C (Space: 8.5 mm)
Side D (Space: 4 mm)

27-EN

­ 14 ­

28-EN

Power supply wire

40

Earth wire

S(N) R(L)
25

Central control wire
40

10

15

Remote controller wire

10

15

REQUIREMENT
· Pass the wires through the grommet of wiring connection holes of the Heat recovery ventilation unit. · Keep a margin (Approx.100 mm) on a wire. · The low-voltage circuit is provided for the remote controller.

Switching between extra high and high (Remote controller-less setting)
Change the “extra-high/high” setting with the DIP switch “SW701-3” on the P.C. board (MCC-1784). * Once the Set data has been changed by the DIP switch, to reset it to 0000, it need changing using remote
controller (sold separately). Change the DN code to 0000. After setting has been completed, restart the Heat recovery ventilation unit and check the operation is no ploblem.
However, the factory default of DN code [5D] is “Extra High”, so basically setting change is not necessary.

SW701-3

• DIP SW setting change is necessary for all the Heat recovery ventilation unit in the group.
  SW701 ON ON
  OFF 1 2 3 4
  ON: Extra-high OFF: Free (Factory default)

­ 15 ­

7 Installation method for each system
configuration

Settings and electric wiring differ depending on the system configuration. Perform electric wring according to the system examples shown in the table below. (Refer to page 20 to 23 for details.)

System example
A Heat recovery ventilation unit system (One Heat recovery ventilation unit is used.)
Heat recovery ventilation unit AB

AB

AB

RBC-AW(M)SU5*

Operation
· Using the remote controller for the Heat recovery ventilation unit RBC- AW(M)SU5*, the unit can be started or stopped, control the ventilation fan speed, and select the ventilation mode.
· If two remote controllers are used, the latter operation overrides the former and their indications always reflect the result of the latter operation.

• Remote controllers other than RBC-AW(M)SU5* are not compatible with heat recovery ventilation systems. (Some functions cannot be available.)

B Heat recovery ventilation unit system (Multiple Heat recovery ventilation units are used.)

Heat recovery ventilation unit
AB

Heat recovery ventilation unit
AB

AB

AB

RBC-AW(M)SU5*

· Using the remote controller for the Heat recovery ventilation unit RBC- AW(M)SU5*, the unit can be started or stopped, control the ventilation fan speed, and select the ventilation mode.
· If two remote controllers are used, the latter operation overrides the former and their indications always reflect the result of the latter operation and the settings of the header unit.

• Remote controllers other than RBC-AW(M)SU5* are not compatible with heat recovery ventilation systems. (Some functions cannot be available.)

C Heat recovery ventilation unit system linked with Air conditioners

Outdoor unit U1 U2 U1 U2
Air conditioner
AB

U1 U2 Air conditioner
AB

Heat recovery Heat recovery

ventilation

ventilation

unit

unit

AB

AB

AB

AB

· The wired remote controller RBC-AW(M)SU5* can be used the ON/OFF of the Heat recovery ventilation unit and the ventilation fan speed and select ventilation mode.

• Remote controllers other than RBC-AW(M)SU5 are not compatible with heat recovery ventilation systems. (Some functions can not be available.)
  · The wired remote controller RBC-AW(M)SU5 can be used to ON/OFF the Heat recovery ventilation unit separately from Air conditioner.
• Setting modifications are required for separate control. Refer to “9. Advanced control”.
  · If two remote controllers are used, the latter operation overrides the former and their indications always reflect the result of the latter operation. In addition, the indications of the Heat recovery ventilation unit always reflect the setting of the unit with the smallest indoor unit address number.

RBC-AW(M)SU5*

RBC-AW(M)SU5*
· In the case of Heat recovery ventilation unit system linked Air conditioner (C, F system), the type of ventilation fan speed that you can select from the remote controllers are less than Heat recovery ventilation unit ONLY sysytem (A, B, D system).

29-EN

30-EN

System example D Central control system (When controlling the Heat recovery ventilation unit only)
Central controller BMS-CT2560U*

U3 U4

U3 U4

Heat recovery Heat recovery

ventilation

ventilation

unit

unit

AB

AB

AB

AB

U3 U4

Heat recovery Heat recovery

ventilation

ventilation

unit

unit

AB

AB

AB

AB

RBC-AW(M)SU5*

RBC-AW(M)SU5*

E Central control system
(When controlling the air conditioner and the Heat recovery ventilation unit separately)

Outdoor unit
U1 U2 U3 U4

Central controller BMS-CT2560U*
U3 U4

U1 U2
Air conditioner

Air conditioner

AB

AB

AB

AB

U3 U4

Heat recovery Heat recovery

ventilation

ventilation

unit

unit

AB

AB

AB

AB

RBC-ASCU, RBC-AMTU3 and RBC-AW(M)SU5*

RBC-AW(M)SU5*

Operation
· The central controller can be used to ON/OFF the whole system and separately ON/OFF groups of the Heat recovery ventilation units.
· The functions that can control Heat recovery ventilation from central controller may differ depend on the of central controller.
· If the central controller and the remote controller for the Heat recovery ventilation unit are used, the latter operation overrides the former.
· The RBC-AW(M)SU5 can be used to control the ventilation fan speed and ventilation mode of the Heat recovery ventilation unit. The remote controllers for the Air conditioners (RBC-ASCU1 and RBC-AMTU3) cannot be used to control the group of the Heat recovery ventilation units. Remote controllers other than RBC-AW(M)SU5 are not compatible with heat recovery ventilation systems. (Some functions can not be available.)
· The central controller can be used to ON/OFF the whole system and separately ON/OFF groups of Air conditioners and the Heat recovery ventilation units. (Air conditioners and Heat recovery ventilation units are not linked in this system.)
· The functions that can control Heat recovery ventilation from central controller may differ depend on the of central controller.
If three control devices are used; · About the central controller and the remote controllers for
Air conditioner or the central controller and the remote controllers for Heat recovery ventilation units, the latter operation overrides the former and their indications always reflect the result of the latter operation. · About the remote controllers for Air conditioner and Heat recovery ventilation units are not affected by each other’s operations. Remote controllers other than RBC-AW(M)SU5 are not
compatible with heat recovery ventilation systems. (Some functions can not be available.)
· In the case of Heat recovery ventilation unit system linked Air conditioner (C, F system), the type of ventilation fan speed that you can select from the remote controllers are less than Heat recovery ventilation unit ONLY sysytem (A, B, D system).

System example

Operation

F Central control system

· The central controller can be used to ON/OFF the whole

(When controlling the air conditioner and Heat recovery ventilation unit together)

Outdoor unit

Central controller BMS-CT2560U*

system. It can also be used to ON/OFF the Heat recovery ventilation unit separately (*).
· The central controller cannot be used to control the ventilation fan speed or ventilation mode of the Heat recovery ventilation unit.

U1 U2 U3 U4

U3 U4

• Central controller cannot recognize Heat recovery ventilation. (Heat recovery ventilation does not appear in central controller.)

U1 U2

U1 U2

· If multiple control devices are used; the central controller

Air conditioner

Air conditioner

Heat recovery Heat recovery

ventilation

ventilation

unit

unit

and the remote controllers, the latter operation overrides the former regardless of which device is used.
· The remote controller for the Heat recovery ventilation unit

AB

AB

RBC-AW(M)SU5* and the remote controller for the Air

AB

AB

conditioners RBC-AMS5E can be used to control the

ventilation fan speed and ventilation mode of the Heat

AB

AB

recovery ventilation unit.

• Remote controllers other than RBC-AW(M)SU5* are not compatible with heat recovery ventilation systems. (Some functions can not be available.)

RBC-AMS5E

RBC-AW(M)SU5 · If the RBC-ASCU1 and RBC-AMTU3 is used; the

ventilation fan speed or ventilation mode of the Heat

recovery ventilation unit cannot be controlled.

· The remote controllers other than RBC-ASCU1* can be

used to ON/OFF the Heat recovery ventilation unit

separately.

• Setting modifications are required for separate control. Refer to “9. Advanced control”

· In the case of Heat recovery ventilation unit system linked Air conditioner (C, F system), the type of ventilation fan speed that you can select from the remote controllers are less than Heat recovery ventilation unit ONLY sysytem (A, B, D system).

31-EN

­ 16 ­

32-EN

­ 17 ­

Heat recovery ventilation unit system

Heat recovery ventilation unit system linked with Air conditioners

Central control system

System example

A

B

C

D

E

F

Central control

None

Only Heat recovery

When controlling the air conditioner and the Heat When controlling the air conditioner and Heat

ventilation unit is used. recovery ventilation unit separately

recovery ventilation unit together

No. of Heat recovery ventilation units

1

Multiple

1

Multiple

Multiple

1

Multiple

1

Multiple

Operation together with the Air conditioners

No

Yes

No

Yes

Remote controller inter-unit wiring

Not necessary

Necessary

Necessary

Not necessary

Necessary

Central control wiring

Not necessary

Necessary (Header unit only)

Not necessary

1. Line (system) address

Fixed * The line (system) address is fixed as 31 for the Heat recovery ventilation unit.

2. Changing the indoor unit address
No.2 of SW701
No.1 to 4 of SW702
No.1 and 2 of SW703
(Or if you need to set using remote controller, change DN code [13]. Factory default: 0001)

Not necessary

Necessary (Do not duplication) SW701 to SW703 (Or DN code [13])

Not necessary

Necessary (Do not duplication) SW701 to SW703 (Or DN code [13])

Necessary (Do not duplication) SW701 to SW703 (Or DN code [13])

Not necessary

Necessary (Do not duplication) SW701 to SW703 (Or DN code [13])

Not necessary

Necessary (Do not duplication) SW701 to SW703 (Or DN code [13])

Circuit board of the Heat recovery ventilation unit

3. Changing the group address
No.4 of SW703
(Or if you need to set using remote controller, change DN code [14]. Factory default: 00Un)

Necessary No.4 of SW703: ON (Or DN code [14]: 0001)

Necessary
Header
No.4 of SW703: ON
(Or DN code [14]: 0001)
Follower
No.4 of SW703: OFF
(Or DN code [14]: 0002)

• Settings of the header unit reflect the indications of the remote controller.

Not necessary

• Check that all Heat recovery ventilation units are “Follower”.
  No.4 of SW703: OFF
  (Or DN code [14]: 0002)
• Settings of the follower unit with the smallest indoor unit address number reflect the indication of the remote controller.

Necessary
Header
No.4 of SW703: ON
(Or DN code [14]: 0001)
Follower
No.4 of SW703: OFF
(Or DN code [14]: 0002)

• Settings of the header unit reflect the indications of the remote controller.

Necessary Header No.4 of SW703: ON (Or DN code [14]: 0001)

Necessary
Header
No.4 of SW703: ON
(Or DN code [14]: 0001)
Follower
No.4 of SW703: OFF
(Or DN code [14]: 0002)

• Settings of the header unit reflect the indications of the remote controller.

Not necessary

• Check that all Heat recovery ventilation units are “Follower”.
  No.4 of SW703: OFF
  (Or DN code [14]: 0002)
• Settings of the follower unit with the smallest indoor unit address number reflect the indication of the remote controller.

4. Fix / Automatic changeover of the central control address
No.3 of SW703
(Or if you need to set using remote controller, change DN code [03]. Factory default: 00Un)

Not necessary No.3 of SW703: OFF (Or DN code [03]: 00Un)

• SW703 ON (Fix): Central control address equals indoor unit address. OFF (Auto): Central control address equals DN code [03].

Not necessary No.3 of SW703: OFF (Or DN code [03]: 00Un)

• SW703 ON (Fix): Central control address equals indoor unit address. OFF (Auto): Central control address equals DN code [03].
• Refer to the Installation Manual of the central control device.

5. Changing the terminator Not necessary

No.1 of SW301

No.1 of SW301: OFF

Necessary

Not necessary

No.1 of SW301: ON

No.1 of SW301: OFF

(100 )

• Set 1 header unit only. * Adjust settings on the air conditioner.

Checking before turning on the power

Complete the settings of the Heat recovery ventilation unit and wiring.

· Complete the settings of the Heat recovery ventilation unit and wiring.
· Refer to the Installation Manual of the air conditioner for the settings and wiring.

Complete the settings of · Complete the settings of the Heat recovery ventilation unit and wiring.

the Heat recovery

· Refer to the Installation Manual of the air conditioner for the settings and wiring.

ventilation unit and

wiring.

Turning on the power

Turn on the breaker of all the Heat recovery ventilation units.

Turn on the Heat recovery ventilation unit first. Refer to the Installation Manual of the air conditioner for its power supply.

Turn on the breaker of all the Heat recovery ventilation units.

Turn on the Heat recovery ventilation unit first. Refer to the Installation Manual of the air conditioner for its power supply.

Central control address setting

Not necessary

Refer to the Installation Manual of the central control device.

33-EN

34-EN

Changing the group address, indoor unit address, and central control address

About the switches on the circuit board of the Heat recovery ventilation unit

SW701 ON ON

SW702 ON

SW703 ON

OFF 1234 1234 1234

Changing the indoor unit address : ON -: OFF When there are multiple Heat recovery ventilation units, do not duplicate the value No.2 of SW701 and between No.1 to No.4 of SW702 and between No.1 and No.2 of SW703. (Factory default: 1)

Changing the group address Header (Individual): ON Follower: OFF · When the system equipped with the Heat recovery
ventilation unit(s) only is used, set only one unit as the header unit. · When the system equipped with the Heat recovery ventilation unit and air conditioners is used, be sure to set all the Heat recovery ventilation units as follower units. (Factory default: Follower)
Changing the central control address Fixed: ON Auto: OFF The settings do not need to be adjusted. (Leave the value OFF.)

Indoor unit address switch (: ON –: OFF) Address switch number Address switch number

Address switch number

Address switch number

Address SW701 SW702 SW703 Address SW701 SW702 SW703 Address SW701 SW702 SW703 Address SW701 SW702 SW703

2123412

2123412

2123412

2123412

1 — — — — — — — 17 — — — — — — 33 — — — — — — 49 — — — — —

2 — — — — — — 18 — — — — — 34 — — — — — 50 — — — —

3 — — — — — — 19 — — — — — 35 — — — — — 51 — — — —

4 — — — — — 20 — — — — 36 — — — — 52 — — —

5 — — — — — — 21 — — — — — 37 — — — — — 53 — — — —

6 — — — — — 22 — — — — 38 — — — — 54 — — —

7 — — — — — 23 — — — — 39 — — — — 55 — — —

8 — — — — 24 — — — 40 — — — 56 — —

9 — — — — — — 25 — — — — — 41 — — — — — 57 — — — —

10 — — — — — 26 — — — — 42 — — — — 58 — — —

11 — — — — — 27 — — — — 43 — — — — 59 — — —

12 — — — — 28 — — — 44 — — — 60 — —

13 — — — — — 29 — — — — 45 — — — — 61 — — —

14 — — — — 30 — — — 46 — — — 62 — —

15 — — — — 31 — — — 47 — — — 63 — —

16 — — — 32 — — 48 — — 64 —

I
Address switch number

Address switch number

Address switch number

Address switch number

Address SW701 SW702 SW703 Address SW701 SW702 SW703 Address SW701 SW702 SW703 Address SW701 SW702 SW703

2123412

2123412

2123412

2123412

65 — — — — — — 81 — — — — — 97 — — — — — 113 — — — —

66 — — — — — 82 — — — — 98 — — — — 114 — — —

67 — — — — — 83 — — — — 99 — — — — 115 — — —

68 — — — — 84 — — — 100 — — — 116 — —

69 — — — — — 85 — — — — 101 — — — — 117 — — —

70 — — — — 86 — — — 102 — — — 118 — —

71 — — — — 87 — — — 103 — — — 119 — —

72 — — — 88 — — 104 — — 120 —

73 — — — — — 89 — — — — 105 — — — — 121 — — —

74 — — — — 90 — — — 106 — — — 122 — —

75 — — — — 91 — — — 107 — — — 123 — —

76 — — — 92 — — 108 — — 124 —

77 — — — — 93 — — — 109 — — — 125 — —

78 — — — 94 — — 110 — — 126 —

79 — — — 95 — — 111 — — 127 —

80 — — 96 — 112 — 128

35-EN

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36-EN

­ 19 ­

Manual Indoor unit address setting using the remote controller

(If you need to set using remote controller.) Procedure when setting indoor units’ addresses first under the condition that indoor wiring has been completed and outdoor wiring has not been started (manual setting using the remote controller)

Wiring example of 2 refrigerant lines
Refrigerant line 1

Refrigerant line 2

Outdoor unit

Indoor unit 1 Indoor unit 2 HRV unit

Indoor unit 3 Indoor unit 4

Remote controller

Heat recovery ventilation unit can not be set the address even if the automatic address is set from outdoor unit in the system of Refrigerant line

1. Perform the address setting individually using remote controller. (Indoor unit 1,2 or 3,4 can be set the automatic address by the outdoor unit.)
   In the example above, disconnect the remote controller connections between the indoor units and connect a wired remote controller to the target unit directly before address setting.

Field setting menu
Pair the Heat recovery ventilation unit to set and the remote controller one- to-one. Turn on the power.

1 Push [ Menu] to open the “Menu”

2 Push and hold [ Menu] and [
open “Field setting menu”
Push and hold 4 seconds.

] at the same time to

DN setting
Detailed data of various models of air conditioner and Heat recovery ventilation unit can be set.
REQUIREMENT
Be sure to stop operation of the air conditioners and Heat recovery ventilation units.
1 In the “Field setting menu” screen, push [ ] and
[ ] to select “DN setting”, and then push [ Set/Fix] 2 Push [ ] and [ ] to select “Indoor unit” and the
push [ Set/Fix] If “Indoor unit” was selected, the fans and louvres of the indoor units operate.
When doing group connections: The fans and louvres of the selected indoor units operate.
3 Push [ ] to black highlight the code (DN), and then
push [ ] and [ ] to set the code
4 Push [ ] to black highlight the data, and then push
[ ] and [ ] to set the data
5 After finishing setting the data of the code (DN), push
[ Set/Fix] “Continue?” is displayed.
6 To set the data of other codes (DN), push [ Set/Fix] To not do other settings, push [ Return] The changes are fixed, and the “Field setting menu” screen returns. ” ” appears while data is changing.
When doing group connections: Push [ Return] to open the unit selection screen. In the unit
selection screen, push [ Return] to briefly display ” “, and then return to the “Field setting menu” screen.

3 Push [ ] and [ ] to select an item
4 Push [ Set/Fix] The setting screen opens.

37-EN

38-EN

Confirming the indoor unit addresses and the position of an indoor unit using the remote controller
Checking and setting addreses
Show the line address, indoor address, and group address of indoor units on the remote controller, operate the fan of relevant indoor units to check the relationship of the addresses and the indoor units, and if needed manually change the addresses.
1 Select “Indoor unit address” from
“Address” in the “Field setting menu”, and push [ Set/Fix] At first, the fans and louvres of all indoor units in the group operate.

Group address Indoor address Line address

The address is indicated as “-“.

2 Push [ Menu]

Each push of [ Menu] displays in order: Entire

31

group Header unit Follower unit 1 … The fans and louvres of the relevant indoor units

operate.

3 If you need to change the address manually

from the remote control, push [ Set/Fix]

31

The screen for settings appears.

• The priority of the DIP switch and the remote

31

controller setting is the latter.

4 Push [ ] and [ ] to move the black

highlight, and then push [ ] and [ ] to

set the address

5 After manually setting the addresses of all
indoor units, push [ Set/Fix] The message “Address confirm?” appears on screen.
6 Push [ Set/Fix] The changes are fixed. ” ” appears while data is changing.

Header/Follower (Settings required to use 2 remote controllers to do operations)
When using 2 remote controllers, you need to set “Header remote controller” and “Follower remote controller”.
1 In the “Initial setting” screen, push [ ] and [ ] to
select “Header/Follower”, and then push [ Set/Fix] 2 Push [ ] and [ ] to select “Header remote
controller” or “Follower remote controller”
3 Push [ Set/Fix] When ” ” appears, return to the “Initial setting” screen.

Settings for each system configuration
NOTE The line (system) address is fixed as 31 for the Heat recovery ventilation unit.

A Heat recovery ventilation unit system (One Heat recovery ventilation unit is used.)

Heat recovery ventilation unit

Earth

LN

Uh Uh (U3) (U4)

A

B

Power supply

AB
Remote controller (header)

AB
Remote controller (follower)

Changing the group address (SW703 or DN code [14]) The setting for group address change are necessary. Set the No.4 of SW703: ON. Or No.4 of SW703: OFF and DN code [14]: 0000 or 0001 to set the remote controller as the header. (Factory default setting SW703 No.4: OFF and DN code [14]: 00Un) * When “Header: ON” is selected, “Individual: ON”
will be selected in this system. (In short, this case “Header” = “Individual”)
Changing the indoor unit address (DN code [13]) The setting does not need to be adjusted. (Factory default: 0001)

39-EN

­ 20 ­

40-EN

­ 21 ­

B Heat recovery ventilation unit system (Multiple Heat recovery ventilation units are used.)

Heat recovery ventilation unit

Heat recovery ventilation unit

Heat recovery ventilation unit

Earth

Earth

Earth

LN

Uh Uh (U3) (U4)

A

B

LN

Uh Uh (U3) (U4)

A

B

LN

Uh Uh (U3) (U4)

A

B

Power supply

Power supply

Power supply

Remote controller (header)

AB

Remote controller inter-unit wiring

Remote controller (follower)

AB

• For group control, install remote controller inter-unit wiring between the units.
• TCC-Link: Up to 8 units can be installed for group control. TU2C-Link: Up to 16 units can be installed for group control.

Changing the group address (SW703 or DN code [14]) The setting for group address change are necessary. 1. In multiple Heat recovery ventilation units, set the No.4 of SW703: ON, or set No.4 of SW703: OFF and DN code
[14]: 0001 to the only one unit to the header. Settings of the header unit reflect to the indications of the remote controller. 2. For other units, do not change the No.4 of SW703 or DN code [14]. If you need to reset to the follower, set the
No.4 of SW703: OFF and DN code [14]: 00Un or 0002. (Factory default (Follower): No.4 of SW703: OFF and DN code [14]: 00Un)
Changing the indoor unit address (SW701, SW702, 703 or DN code [13]) Settings for changing the indoor unit address are necessary. · Do not duplicate the value. (SW701, SW702 and SW703: 1 to 128, or DN code [13]: 1 to 128) The header unit does not need to be selected as “1”. (Factory default: 1) * The priority of DIP SW and DN code is the latter.

C Heat recovery ventilation unit system linked with Air conditioners

Power supply

Outdoor unit

L1 L2 L3 N

U1 U2 U3 U4 U5 U6
Control wiring between indoor and outdoor units Control wiring between indoor units

Indoor unit

Indoor unit

Heat recovery ventilation unit

LN

Uv Uv (U1)(U2)

A

B

LN

Uv Uv (U1)(U2)

A

B

LN

Uh Uh (U3)(U4)

A

B

Power supply

Power supply

Power supply

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Power supply

Remote controller (header)

AB

Remote controller inter-unit wiring

• For group control with Air conditioners, install inter-unit wiring between the units.
• TCC-Link: Up to 8 units can be installed for group control. TU2C-Link: Up to 16 units can be installed for group control.

Remote controller

(follower)

AB

Changing the group address (SW703 or DN code [14]) The settings of the group address does not need to be adjusted. Leave the value “Follower”. No.4 of SW703: OFF and DN code [14]: 00Un or 0002 (Factory default (Follower): No.4 of SW703: OFF and DN code [14]: 00Un) Settings of the follower unit with the smallest indoor unit address number reflect to the indication of the remote
controller.
Changing the indoor unit address (SW701, SW702 and SW703 or DN code [13]) Settings for changing the indoor unit address are necessary. · Do not duplicate the value. (SW701, SW702 and SW703: 1 to 128, or DN code [13]: 1 to 128) The header unit does not need to be selected as “1”. (Factory default:

1. • The priority of DIP SW and DN code is the latter.

41-EN

42-EN

D Central control system (When controlling the Heat recovery ventilation unit only) For the settings of the central control address, refer to the Installation Manual of the central control device.

Power supply
Central controller
LN Uh Uh (U3)(U4)

Central control wiring

Heat recovery ventilation unit

Heat recovery ventilation unit

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Power supply

LN

Uh Uh (U3)(U4)

A

B

Power supply

LN

Uh Uh (U3)(U4)

A

B

Power supply

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Power supply

Remote controller

(header)

AB

Remote controller

Remote controller

(follower)

A B (header)

AB

Remote controller (follower)

Remote controller inter-unit wiring

Remote controller inter-unit wiring

• Central control wiring must be connected to the header Heat recovery ventilation unit only.
• For group control, install inter-unit wiring between the units.
• TCC-Link: Up to 8 units can be installed for group control. TU2C-Link: Up to 16 units can be installed for group control.

AB

Changing the group address (SW703 or DN code [14]) The setting for group address change are necessary. 1. In multiple Heat recovery ventilation units, set the No.4 of SW703: ON, or set No.4 of SW703: OFF and DN code
[14]: 0001 to the only one unit to the header. Setting needs to units which is connected central control wiring of each group. Settings of the header unit reflect to the indications of the remote controller. 2. For other units, do not change the No.4 of SW703 or DN code [14]. If you need to reset to the follower, set the
No.4 of SW703: OFF and DN code [14]: 00Un or 0002. (Factory default (Follower): No.4 of SW703: OFF and DN code [14]: 00Un)

Changing the indoor unit address (SW701, SW702 and SW703 or DN code [13]) Settings for changing the indoor unit address are necessary. Do not duplicate the value. (SW701, SW702 and SW703: 1 to 128, or DN code [13]: 1 to 128) The priority of DIP SW and DN code is the latter.

Changing the terminator (No.1 of SW301)
Settings for changing the terminator are necessary. Select “ON” for one of the header unit. (Factory default: OFF)
100 : ON (1 header unit only) None: OFF (the other units)

SW301 ON
ON
OFF 12

Changing the terminator 100 : ON None: OFF (Factory default: OFF)

E Central control system (When controlling the air conditioner and the Heat recovery ventilation unit separately)
For the settings of the central control address, refer to the Installation Manual of the central control device.

Power supply

Outdoor unit

L1 L2 L3 N

Uv Uv Uh Uh Uc Uc (U1) (U2) (U3) (U4) (U5) (U6)

Central

control

wiring

Power supply

LN
Uh Uh (U3)(U4)

Central controller

Control wiring between indoor and outdoor units

Control wiring between indoor units

Central control wiring

Indoor unit

Indoor unit

Heat recovery ventilation unit

LN

Uv Uv (U1)(U2)

A

B

LN

Uv Uv (U1)(U2)

A

B

LN

Uh Uh (U3)(U4)

A

B

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Power supply

Power supply

Power supply

Power supply

Remote controller (header)

AB

Remote controller (follower)

AB

Remote controller (header)

AB

Remote controller (follower)

AB

Remote controller inter-unit wiring

Remote controller inter-unit wiring

• Central control wiring of the Heat recovery ventilation unit is necessary only for the header unit.
• For group control, install inter-unit wiring between the units.
• TCC-Link: Up to 8 units can be installed for group control. TU2C-Link: Up to 16 units can be installed for group control.

Changing the group address (SW703 or DN code [14]) The setting for group address change are necessary. 1. In multiple Heat recovery ventilation units, set the No.4 of SW703: ON, or set No.4 of SW703: OFF and DN code
[14]: 0001 to the only one unit to the header. Settings of the header unit reflect to the indications of the remote controller. 2. For other units, do not change the No.4 of SW703 or DN code [14]. If you need to reset to the follower, set the
No.4 of SW703: OFF and DN code [14]: 00Un or 0002. (Factory default (Follower): No.4 of SW703: OFF and DN code [14]: 00Un) Settings of the header unit reflect to the indications of the remote controller. (Factory default: Follower)
Changing the indoor unit address (SW701, SW702 and SW703 or DN code [13]) Settings for changing the indoor unit address are necessary. · Do not duplicate the value. (SW701, SW702 and SW703: 1 to 128, or DN code [13]: 1 to 128) * The header unit does not need to be selected as “1”. (Factory default:

1. • The priority of DIP SW and DN code is the latter.

43-EN

­ 22 ­

44-EN

F Central control system (When controlling the air conditioner and Heat recovery ventilation unit together)
· For the settings of the central control address, refer to the Installation Manual of the central control device. · Do not perform the central control wiring with the Heat recovery ventilation unit.

Power supply

Outdoor unit

L1 L2 L3 N
Uv Uv Uh Uh Uc Uc (U1) (U2) (U3) (U4) (U5) (U6)

Central control wiring

Power supply
Central controller
LN Uh Uh (U3)(U4)

Control wiring between indoor and outdoor units Control wiring between indoor units

Indoor unit

LN

Uv Uv (U1)(U2)

A

B

Indoor unit

LN

Uv Uv (U1)(U2)

A

B

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Heat recovery ventilation unit

LN

Uh Uh (U3)(U4)

A

B

Power supply

Power supply

Power supply

Power supply

Remote controller

(header)

AB

Remote controller inter-unit wiring

• For group control with Air conditioners, perform inter-unit wiring between the units.
• TCC-Link: Up to 8 units can be installed for group control. TU2C-Link: Up to 16 units can be installed for group control.

Remote controller (follower)

AB

Changing the group address (SW703 or DN code [14]) The settings of the group address does not need to be adjusted. Leave the value “Follower”. No.4 of SW703: OFF and DN code [14]: 00Un or 0002. (Factory default (Follower): No.4 of SW703: OFF and DN code [14]: 00Un) The settings of the follower unit with the smallest indoor unit address number reflect to the indication of the
remote controller.
Changing the indoor unit address (SW701, SW702 and SW703 or DN code [13]) Settings for changing the indoor unit address are necessary. · Do not duplicate the value. (SW701, SW702 and SW703: 1 to 128, or DN code [13]: 1 to 128) The header unit does not need to be selected as “1”. (Factory default:

1. • The priority of DIP SW and DN code is the latter.

­ 23 ­
8 Advanced system

WARNING
· Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.
· When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wire securely to prevent them applying external force to the terminals. Improper connection of fixing may result in fire.
· Electrical wiring work shall be conducted according to law and regulation in the community and Installation Manual. Failure to do so may result in electrocution or short circuit.

REQUIREMENT
When external input / output function is used, connect the control adapter sold separately. Connect it to Control P.C. board (MCC-1784). It does not function even if connected to other P.C. board.
External input / output function List · Depending on the model, some DN codes may not be displayed on the remote controller. Also, the number of
data that can be set may differ. · DN codes (functions) that are not displayed on the remote controller cannot be set. · CN60 can be used in models with a refrigeration cycle (excluding “fan output”). · The color of the connector or lead wire may change due to material procurement, but the function is the same. This lead wire color is the original color of the optional adapter. It doesn’t matter if you use local supply lead wires. When using CN60, 61, 70, 73, 80, 610, remove the power terminal block mounting plate and insert it.

WHT: White, YEL: Yellow, RED: Red, GRN: Green, ORN: Orange, BRN: Brown, BLK: Black, BLU: Blue

No.

Connector No.

Color (Con-
nector)

PIN No.

Color* (Lead
wire)

DN Code Data

Function

Note

Adapter (sold separately)

1

RED

–

– DC12 V (COM) Common for Pin.2 to 6

2

BLU

–

– Defrost output

ON signal when outdoor unit is in defrosting

CN60

3 ORN

–

1

(Operation status signal

WHT

output)

4

YEL

–

–

Thermostat ON ON signal when indoor unit is

output

“thermostat-ON”

–

Cooling output

ON when operation mode is cooling

TCBKBCN60OPE

5

BRN

–

–

Heating output

ON when operation mode is heating

6

BLK

–

– Fan output

ON when indoor unit fan is ON

45-EN

46-EN

No.

Connector No.

Color (Con-
nector)

PIN No.

1

CN61

2

2

(Leaving-ON prevention

YEL

control)

3

4 5 6

CN70

1

3 (Option error WHT

input)

2

CN73

1

4 (Demand

RED

control input)

2
1
2
CN80 5 (Outside error GRN
input) 3

CN610
6 (Option output)

1 YEL 2
3

Color* (Lead wire)
BLU
WHT
ORN
YEL RED BRN
BLU
WHT
BLU
WHT RED
BLU RED
BLU

DN Code Data

Function

Note

Adapter (sold separately)

External ON/OFF control

(Factory default)

0000 ON/OFF input

• You can change pulse (ON) / static (OFF) for No.1 of SW701.

(Setting is common to CN61,

72E

CN705 and CN706)

0001 Fire alarm input Normal OPEN (Albeit contact)

0002 Notice code input Display code 201

0003

Ventilation fan speed input

Low speed

–

– 0 V (COM)

Common for Pin.1, 3

Input signal makes switching of TCB-

permission (OFF) /

KBCN61HAE

prohibition (ON)

Prohibition of

of individual remote controller

–

– remote controller operation (During prohibition,

operation input “Central controlling mark” is shown on the LCD.)

• Common circuit with Pin.2 of

CN705

–

–

Operation output

On signal during “remote controller ON”

–

– DC12 V (COM) Common for Pin. 4, 6

–

– Alarm output

On signal during alarm output (non recovery fatal error)

0000

Filter display input

When signal is input, filter sign symbol is displayed on RC

2A

0001

External error input

When signal is input, error symbol

is displayed on RC

TCB-

(Indoor unit does not stop)

KBCN70OAE

0002 Humidifier input Factory default

–

– 0 V (COM)

–

0003 Fire alarm input

Normal OPEN (Albeit contact) (Factory default)

0005 Fire alarm input Normal CLOSE (Break contact)

0B 0006 Notice code input Display code 202

TCBKBCN73DEE

0010

Humidifier ON/ OFF input

–

–

– 0 V (COM)

–

–

– DC12 V (COM) –

–

—

–

After the signal input is as follows: 1) 3 sec. Thermo-off forcedly

TCBKBCN80EXE

–

–

Outside error input

2. 1 min. Generates Error code “L30” (Interlock from

outside) to stop the operation

forcedly

–

–

ON when outside temperature is

–

–

Cold air detection very low

output

(For detail, refer to the Service

TCBKBCN610V-E

–

–

Manual)

No.

Connector No.

CN704
7 (External output)

CN705 8 (External
input)
CN706 9 (External
input)

Color (Con-
nector)

PIN No.

1

2 WHT
3 4 5 1
2
3 RED
4

5

1
WHT (Natural)
2

Color* (Lead wire) WHT
YEL
RED ORN BRN GRN YEL
RED WHT
BLK
BLU
ORN

DN Code Data

Function

Note

Adapter (sold separately)

–

– DC12 V (COM) Common for Pin.2

–

–

ON output (Supply fan)

ON when operation is ON

0000

ON during normal operation (Factory default)

0001 ED
0002
0003

ON during normal operation, 24-hour ventilation or nighttime heat purge operation
ON during 24-hour ventilation or nighttime heat purge operation
ON when SA fan is ON

TCBKBCN704V-E

0004

ON when EA fan is ON

–

– DC12 V (COM) Common for Pin.4 to 5

–

–

External damper output

ON during normal operation, 24-hour ventilation or nighttime heat purge operation

0000 Alarm output

EE

0001

Bypass mode output

ON during an error (Factory default)
ON when operation is bypass mode

–

– DC12 V (COM) Common for Pin. 2, 5

Input signal makes switching of

permission / prohibition of

–

–

Prohibition of remote controller
operation input

individual remote controller operation (During prohibition, “Central controlling mark” is shown on the LCD.)

• Common circuit with Pin.3 of

CN61

Select fan speed:

High (open) / Medium (close)

–

–

Ventilation fan speed input

speed * If Pin.1 of CN61 setting is 0003,

the priority is CN61

(Fan speed operates on Low) TCB-

–

–

Ventilation mode input

Select ventilation mode:
Bypass mode (close) / Heat exchange mode (open)

KBCN705V-E

External ON/OFF control

ON (close) / OFF (open)

• Common circuit with Pin.1 of

–

–

ON/OFF input * Non-voltage

CN706 * You can change pulse (ON) /

static (OFF) for No.1 of SW701

(Setting is common to

CN61, CN705 and CN706)

0000 ON/OFF linked Factory default

4E 0001 ON linked

–

0002 OFF linked

–

ON/OFF input External ON/OFF control

–

– With DC12 or Common circuit with Pin.5 of

DC24 voltage

CN705

• You can change pulse (ON) /

–

– 0 V (COM)

static (OFF) for No.1 of SW701 (Setting is common to CN61, TCB-

CN705 and CN706)

KBCN706V-E

0000 ON/OFF linked Factory default

4E 0001 ON linked

–

0002 OFF linked

–

The connecting method refer to follow.

47-EN

­ 24 ­

48-EN

How to connect the control adapter
1 CN60: Operation status signal output
(On P.C. board MCC-1784)
Diagram of local supply parts
Local supply

(To CN60)

Terminal

Relay

No.

Diagram of connector

COM (DC12 V) 1 Defrost output 2

(From local supply parts)

3
1
4

5

6

COM (DC12 V) 1
2

(From local supply parts)

2

Thermo ON output 3

4

5

6

COM (DC12 V) 1
2

(From local supply parts)

3

3

Cooling output 4

5

6

COM (DC12 V) 1
2

(From local supply parts)

4

3

4

Heating output 5

6

­ 25 ­

Note Locally procure relays and other devices suitable for DC12 V output. * Use an adapter (sold
separately) to connect to the connector.
Note ON signal when outdoor unit is in defrosting. (When receiving defrost signal from outdoor unit.)
ON signal when indoor unit is “Thermostat-ON”.
ON when operation mode is cooling.
ON when operation mode is heating.

COM (DC12 V) 1
2

(From local supply parts)

3
5
4

5
Fan output 6

2 CN61: Leaving-ON prevention control
(On P.C. board MCC-1784)
Diagram of local supply parts Local supply

(To CN61)

Terminal

Relay

Power supply

No.

Diagram of connector

ON/OFF input 1 COM (0 V) 2

(From local supply parts)

3
1
4

5

6

COM (0 V) 1
2

(From local supply parts)

2

Prohibition of remote 3

controller operation 4

input 5

6

(Description of CN61 continues on next page)

ON when indoor unit fan is ON.
Note Locally procure relays and other devices suitable for shorting connector pins. Use an adapter (sold
separately) to connect to the connector.
Note External ON/OFF control (Factory default). It is necessary to set the DN
code when using the other input function.
Input signal makes switching of permission / prohibition of individual remote controller operation.

49-EN

50-EN

(Continued description of CN61 from the previous page) Diagram of local supply parts
Local supply

(To CN61)

Terminal

Relay

Note
Locally procure relays and other devices suitable for DC12 V output. * Use an adapter (sold
separately) to connect to the connector.

No.

Diagram of connector

1

2

3

3

ON output 4

(From local supply parts)

COM (DC12 V) 5

6

1

2

3
4
4

COM (DC12 V) 5 Alarm output 6

(From local supply parts)

Note On signal during “remote controller ON”.
On signal during alarm output (non recovery fatal trouble).

[Additional note for No.1] · This input can use for linking to “ON/OFF” from external device or remotely controlled. · For Heat recovery ventilation unit linked with air conditioner system, if a command is sent to one of the units in the group, all units operate together. · When a remote controller is used with the Heat recovery ventilation unit: The latter operation of the remote controller or the switch of the external device overrides the former. · When no remote controller is used with the Heat recovery ventilation unit: The operation of the Heat recovery ventilation unit is confined to that together with the external device. · Operation together with a pulse transmission device such as a building management system: Select “ON (Pulse)” for No.1 of SW701 (changeover switch for pulse/static). * Factory default: Static

SW701 ON ON
OFF 12

Changing the pulse / static Pulse: ON Static: OFF Select “ON” for No.1 of SW701 (Factory default: Static)

SW701 ON

Pulse input

Action

Pulse interval 200 msec or more

ON

OFF

[Additional note for No.2] · This input can use for switching the remote controller between permission/prohibition. · During prohibition, “Central controlling mark” is shown on the LCD. · If a command is sent to one of the group, the permission/prohibition setting of the remote controller in the group can be switched.
[Additional note for No.3] · This output is linked with the “remote controller ON” state. (Not fan ON)
[Additional note for No.4] · This output can use for monitoring an abnormal signal. * It is possible to monitor an abnormal signal from the Heat recovery ventilation unit.

3 CN70: Option trouble input
(On P.C. board MCC-1784)
Diagram of local supply parts Local supply

(To CN70)

Terminal

Relay

Note
Locally procure relays and other devices suitable for shorting connector pins.

• Use an adapter (sold separately) to connect to the connector.

Power supply

No.

Diagram of connector

1

Trouble input 1 COM (0 V) 2

(From local supply parts)

Note
ON signal when trouble occurs. (Factory default: No function) * It is necessary to set the DN
code when using this function.

OFF

Static input

Pulse width 200 to 300 msec

ON

OFF

51-EN

­ 26 ­

52-EN

4 CN73: Demand control input
(On P.C. board MCC-1784)
Diagram of local supply parts Local supply

(To CN73)

Terminal

Relay

Power supply

No.

Diagram of connector

1

Alarm input 1 COM (0 V) 2

(From local supply parts)

5 CN80: Outside trouble input
(On P.C. board MCC-1784)
Diagram of local supply parts Local supply

(To CN80)

Terminal

Relay

Power supply

No.

Diagram of connector

COM (12 V) 1

1

2

(From local supply parts)

Outside error input 3

Note
Locally procure relays and other devices suitable for shorting connector pins.

• Use an adapter (sold separately) to connect to the connector.

­ 27 ­

6 CN610: Cold air detection output
(On P.C. board MCC-1784) Diagram of local supply parts
Local supply

(To CN610)

Terminal

Relay

Note
Locally procure relays and other devices suitable for DC12 V output.

• Use an adapter (sold separately) to connect to the connector.

Note
Normal OPEN (Factory default) * It is necessary to set the DN
code when using the other function.

No.

Diagram of connector

1

COM (12 V) 1

(From local supply parts)

2

Outside error output 3

Note
ON when outside temperature is very low.

Note
Locally procure relays and other devices suitable for shorting connector pins.

• Use an adapter (sold separately) to connect to the connector.

[Additional note for No.1] · A signal will be output when low outside air temperature is detected in linking with Heat recovery ventilation unit operation (ON/OFF). * For its control contents or setting detail, refer to the Service Manual.

Note
After the signal input is as follows: 1) 3 sec.
Thermostat-off forcedly 2) 1 min.
Generates trouble code “L30” (Interlock from outside)

53-EN

54-EN

7 CN704: External output
(On P.C. board MCC-1784) Diagram of local supply parts
Local supply

(To CN704)

Terminal

Relay

No.

Diagram of connector

COM (DC12 V) 1 ON output 2

(From local supply parts)

1

3

4

5

1

2

2

COM (DC12 V) 3

External damper output 4

5

(From local supply parts)

1

(From local supply parts)

2

3

COM (DC12 V) 3

4

Alarm output 5

Note Locally procure relays and other devices suitable for DC12 V output. Use an adapter (sold
separately) to connect to the connector.
Note ON when operation is ON. It is necessary to set the DN
code when changing the output ON signal.
ON during normal operation, 24hour ventilation or night-time heat purge operation.
ON during an trouble (Factory default). * It is necessary to set the DN
code when using the other output function.

[Additional note for No.1] · This output can use for connecting an auxiliary fan or monitoring operation. · This output is linked with the “fan ON” state. (Not remote controller ON) · Contact is on during normal operation as factory default. Contact is off during 24-hour ventilation mode, night-time heat purge operation, delay mode or cold mode (temperature is below -10°C) as factory default. The operation output settings can be changed the DN code.
[Additional note for No.2] · This output can use for connecting an electric damper (electric shutter). · The electric damper (electric shutter) works during normal operation, 24-hour ventilation mode, and nighttime hear purge operation. · The electric damper (electric shutter) also works in the following circumstances: While the operation is stopped intermittently in 24-hour ventilation mode While the operation is paused during nighttime heat purge operation While operating in cold mode (Temperature is below -10°C) · The electric damper (electric shutter) does not works in the following circumstances: While the operation is stopped Before the monitoring operation of nighttime heat purge operation starts While in the delay mode
[Additional note for No.3] · This output can use for monitoring an abnormal signal or the operation signal of bypass mode. * It is possible to monitor an abnormal signal or the operation signal of bypass mode from the Heat recovery ventilation unit. · Detection of an abnormal signal is possible, as factory default.

55-EN

­ 28 ­

56-EN

8 CN705: External input
(On P.C. board MCC-1784)
Diagram of local supply parts Local supply

(To CN705)

Terminal

Relay

Power supply

No.

Diagram of connector

COM (DC12 V) 1 Prohibition of remote 2

(From local supply parts)

controller operation 3

1

input 4

5

COM (DC12 V) 1
2
Ventilation fan speed input 3 2
4
5

(From local supply parts)

COM (DC12 V) 1
2
3
3 Ventilation mode input 4
5

(From local supply parts)

COM (DC12 V) 1

2

3

(From local supply parts)

4

4

ON/OFF input 5

­ 29 ­

Note Locally procure relays and other devices suitable for shorting connector pins. * Use an adapter (sold
separately) to connect to the connector.
Note Input signal makes switching of permission / prohibition of individual remote controller operation.
Select fan speed: High (open) / Medium (close)

[Additional note for No.1] · This input can use for switching the remote controller between permission/prohibition. · During prohibition, “Central controlling mark” is shown on the LCD. · If a command is sent to one of the group, the permission/prohibition setting of the remote controller in the group can be switched.
[Additional note for No.2] · This input can use for switching between High/Medium ventilation fan speed. · If a command is sent to one of the units in the group, all the Heat recovery ventilation units in the group operate together. · The latter operation of the remote controller or the external device overrides the former.
[Additional note for No.3] · This input can use for switching between bypass mode/heat exchange mode. · If a command is sent to one of the units in the group, all the Heat recovery ventilation units in the group operate together. · The latter operation of the remote controller or the external device overrides the former.
[Additional note for No.4] · This input can use for linking to “ON/OFF” from external device or remotely controlled. · When the output signal of the external device is a no voltage a-contact. (static signal) · For Heat recovery ventilation unit linked with air conditioner system, if a command is sent to one of the units in the group, all units operate together. · When a remote controller is used with the Heat recovery ventilation unit: The latter operation of the remote controller or the switch of the external device overrides the former. · When no remote controller is used with the Heat recovery ventilation unit: The operation of the Heat recovery ventilation unit is confined to that together with the external device. · Operation together with a pulse transmission device such as a building management system: Select “ON (Pulse)” for No.1 of SW701 (changeover switch for pulse/static). * Factory default: Static

Select ventilation mode: Bypass mode (close) / Heat exchange mode (open)

External ON/OFF control (Factory default: ON/OFF linked).

• It is necessary to set the DN code when changing the type of ON/OFF link.

57-EN

58-EN

9 CN706: External input
(On P.C. board MCC-1784) Diagram of local supply parts
Local supply

(To CN706)

Terminal

DC12 V or DC24 V

No.

Diagram of connector

ON/OFF input 1

(From local supply parts)

1

COM (0 V) 2

Note Locally procure relays and other devices suitable for shorting connector pins. Use an adapter (sold
separately) to connect to the connector.
Note External ON/OFF control (Factory default: ON/OFF linked). It is necessary to set the DN
code when changing the type of ON/OFF link.

[Additional note for No.1] · This input can use for linking to “ON/OFF” from external device or remotely controlled. · When the output signal of the external device is DC12 V or DC24 V. (static signal) · For Heat recovery ventilation unit linked with air conditioner system, if a command is sent to one of the units in the group, all units operate together. · When a remote controller is used with the Heat recovery ventilation unit: The latter operation of the remote controller or the switch of the external device overrides the former. · When no remote controller is used with the Heat recovery ventilation unit: The operation of the Heat recovery ventilation unit is confined to that together with the external device. · Operation together with a pulse transmission device such as a building management system: Select “ON (Pulse)” for No.1 of SW701 (changeover switch for pulse/static). * Factory default: Static

9 Advanced control
REQUIREMENT
· When the unit is used for the first time, it takes a while for the remote controller to recognize operation input after the power is turned on. This is not a malfunction.
· For details on the auto address setting of Air conditioners when operating together with a SMMS series air conditioner (adjust the auto address setting on the circuit board of the outdoor interface), refer to the Installation Manual of the SMMS series air conditioner.
· For details on the auto address setting of Air conditioners when operating together with a DI·SDI series air conditioner (the action is performed when the power is turned on), refer to the Installation Manual of the DI·SDI series air conditioner.
· Turn on the Heat recovery ventilation unit first. Refer to the Installation Manual of the air conditioner about its power supply.
· When shipped from the factory, all the settings are set to [Factory default]. Change the settings of the Heat recovery ventilation unit if necessary.
· Change settings using the main remote controller (wired remote controller).

• The settings cannot be changed using the wireless remote controller, the sub remote controller, or a system
  without a remote controller (system with only the central remote controller). Therefore, prepare the main remote controller and install it.
  Changing the advanced control settings
  Basic procedure for changing the settings Change settings while the operation is OFF and power supply is ON.
  CAUTION
  Do not change any setting codes other than those in this manual; otherwise, the unit may not work or some problems may occur.
  Changing the settings of the Heat recovery ventilation unit (For RBC- AW(M)SU5) In the case of RBC-ASCU1 and RBC-AMTU3, the display position is different, but it can be set in the same way. For RBC-AW(M)SU5, set from “9. DN setting” in the Field setting menu.

59-EN

­ 30 ­

60-EN

­ 31 ­

Codes (DN codes) for changing settings Codes in the table below are necessary for local advanced control.

Code 01 03 13 14 28 31 47
48
49

Description

SET DATA and description

Lighting-up hours of 0000: None

the Filter Sign

0001: 150 H

0002: 2500 H

0003: 5000 H

0004: 10000 H

Central control address

0001: No.1 unit to 0128: No.128 unit (TU2C-Link) No.1 unit to 0064: No.64 unit (TCC-Link)
00Un: Unfixed

Indoor unit address 0001: No.1 unit to 0128: No.128 unit (TU2C-Link) No.1 unit to 0064: No.64 unit (TCC-Link)

Group address

0000: Individual 0001: Header 0002: Follower 00Un: Unfixed

Auto recovery from a power failure

0000: Invalid
0001: Valid

• Resumes the status just before the power failure

Single operation of the fan

0000: Invalid 0001: Valid
ON/OFF operation for the Heat recovery ventilation unit only

Operation pattern and ventilation fan speed at 24-hour ventilation

0000: Medium fan speed (continuous) 0001: “Before stop” fan speed
(continuous) 0002: Low fan speed (continuous) 0003: High fan speed (intermittent) “High” may be “Extra High” 60 minutes ON / 60 minutes OFF

Unbalanced ventilation fan speed
(Main setting)

0000: Normal
0001: SA (High) > EA (Medium) or SA (Medium) > EA (Low)

• SA: Fan speed follows the remote controller setting
• EA: Fan speed is one step lower than SA
  0002: SA (Medium) < EA (High) or SA (Low) < EA (Medium)
• EA: Fan speed follows the remote controller setting
• SA: Fan speed is one step lower than EA

24-hour ventilation 0001: Invalid 0002: Valid

Factory default 0002: 2500 H 00Un: Unfixed 0001: No.1 unit 00Un: Unfixed 0000: Invalid 0000: Invalid 0002: Low fan
speed
0000: Normal
0001: Invalid

Note Adjusting this setting is necessary for the header unit.
The maximum number of addresses that can be set (64 or 128) depends on the communication type (TCC-Link or TU2C-Link). The maximum number of addresses that can be set (64 or 128) depends on the communication type (TCCLink or TU2C-Link). 5 6
1
Setting change is necessary for the header unit of Air conditioners. 2 Setting change is necessary for all the Heat recovery ventilation unit in the group. 3
Setting change is necessary for all the Heat recovery ventilation unit in the group. 3, 4
Setting change is necessary for all the Heat recovery ventilation unit in the group. 3

Code
4B
4C 4D 4E 5D EA EB

Description Delayed operation
Quick-ventilation control
Nighttime heat purge
Setting of the exhausting fan operation below -20°C (OA)

SET DATA and description

Factory default

0000: Invalid

0000: Invalid

0001 – 0006: [Setting value] × 10 minutes

delay

• Delaying the Heat recovery ventilation unit operation to reduce the airconditioning load when starting running the air conditioner

After starting operation, the fan speed is fixed at “High” for the following setting time.
(Regardless of the remote controller fan speed setting.)
0000: Invalid
0007: 15 minutes running “High” fan speed
0008: 30 minutes running “High” fan speed
0007: 60 minutes running “High” fan speed

• “High” may be “Extra-High”

0000: Invalid

0000: Invalid
0001 – 0048: Start after [Setting value] × 1 hour(s)

• Setting for the time before the nighttime heat purge operation starts

0000: Nighttime heat purge OFF

0000: Exhausting fan run
0001: Exhausting fan stop

• The supplying fan stops when the temperature is below -20°C (OA)

0000: Exhausting fan run

Setting of the linked operation with external devices

0000: ON/OFF linked
0001: ON linked
0002: OFF linked

• Specifies whether the ON/OFF operation of the Heat recovery ventilation unit is linked with the external device operation

0000: ON/OFF linked

Max fan speed selection

0000: High 0001: Extra High

0001: Extra High

Changing the ventilation mode
Changing the ventilation Fan speed

0001: Bypass mode

0003: Automatic

0002: Heat Exchange mode

mode

0003: Automatic mode

• Compatible with systems without a remote controller and RBC-ASCU1 and RBC-AMTU3

0002: High 0003: Medium
0004: Unbalanced (High) 0011: Low 0012: Unbalanced (Medium) “High” may be “Extra High” Compatible with remote controller less
systems or when using remote controller “RBC-ASCU1 and RBC-AMTU3”.

0002: High

Note Setting change is necessary for all the Heat recovery ventilation unit in the group. 2, 3
Setting change is necessary for all the Heat recovery ventilation unit in the group. 3
Setting change is necessary for all the Heat recovery ventilation unit in the group. 2, 3 Setting change is necessary for all the Heat recovery ventilation unit in the group. 3 Setting change is necessary for a Heat recovery ventilation unit to which an adapter for remote ON/OFF control (sold separately) is connected.
Setting change is necessary for all the Heat recovery ventilation unit in the group. 6 1
*1

61-EN

62-EN

Code ED EE FC 701 702 703 745 747 748 74E

Description

SET DATA and description

Factory default

Note

Changing the operation output

0000: ON during normal operation
0001: ON during normal operation, 24hour ventilation, or nighttime heat purge operation
0002: ON during 24-hour ventilation or nighttime heat purge operation
0003: ON when SA fan is running
0004: ON when EA fan is running

0000: ON during normal operation

Setting change is necessary for a Heat recovery ventilation unit which transfers the operation output.

Changing the abnormal signal / Bypass mode signal output

0000: ON when an abnormal signal is detected
0001: ON when the Bypass mode signal is detected

0000: ON when an abnormal signal is detected

Setting change is necessary for a Heat recovery ventilation unit which transfers the operation output.

Communication type

0000: TCC-Link 0004: TU2C-Link

0004: TU2C-Link

Setting change is necessary for all the Heat recovery ventilation unit in the group.
*3

• For details, refer to “6. Electrical connection Remote controller wiring”.

Remote controller 0000: No correction

display value

-0010 – 0010: Add the value × 1°C to the

correction for

displayed value

“Outdoor

temperature (TOA)”

0000: No correction The displayed value is the value detected at the intake port (OA) of the Heat recovery ventilation unit.
*1

Remote controller 0000: No correction

display value

-0010 – 0010: Add the value × 1°C to the

correction for

displayed value

“Indoor temperature

(TRA)”

0000: No correction The displayed value is the value detected at the intake port (RA) of the Heat recovery ventilation unit.
*1

Remote controller display value correction for “Indoor humidity”

0000: No correction
-0020 – 0020: Add the value × 1% to the displayed value

0000: No correction The displayed value is the value detected at the intake port (RA) of the Heat recovery ventilation unit.
*1

Forced stop due to humidity at Nighttime heat purge

0000: Invalid 0001 – 0100: Humidity (%)

0000: Invalid

· When the humidity exceeds the set humidity, it will be forced to stop.
· The humidity value is the value detected at the intake port (RA) of the Heat recovery ventilation unit.

Operation pattern and ventilation fan speed at Nighttime heat purge

0000: Medium fan speed (continuous) 0001: “Before stop” fan speed
(continuous) 0002: Low fan speed (continuous) * “High” may be “Extra High”

0002: Low fan speed

Setting change is necessary for all the Heat recovery ventilation unit in the group.
2, 3

Unbalanced Fan speed ventilation
(Sub setting)

0000: Not fixed
0001: Fixed the low airflow side at Low fan speed SA > EA (Low) or SA (Low) < EA

0000: Not fixed

· This setting is invalid if DN code [48] is not set.
· Setting change is necessary for all the Heat recovery ventilation unit in the group.
*3

Fan control

0000: Constant input power control 0001: Constant air volume control

0000: Constant input power control

Setting change is necessary for all the Heat recovery ventilation unit in the group.
*3

Code

Description
“High” fan speed power setting of supply air (SA) and exhaust air (EA)

• “High” may be “Extra-High”

750, 754

SET DATA and description

Factory default

· If you want to use “High setting”, it must be set to “DN code [5D] = 0000”
· Percentages below are for “Extra-High (100%)”
· You can set the data from 40% to 100% by the 1%.

As shown in the table on the left

• Max.: 0100 * Min.: 0040

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[750] SA power 0067: 67% 0066: 66% 0051: 51% 0054: 54% 0050: 50% 0054: 54% 0050: 50% [754] EA power 0060: 60% 0066: 66% 0050: 50% 0053: 53% 0048: 48% 0055: 55% 0052: 52%

Note
· These setting are for “Constant input power control”. (for supply air and exhaust air fan motor power)
· Setting change is necessary for all the Heat recovery ventilation unit in the group.
*3

751, 755

“Medium” fan speed power setting of supply air (SA) and exhaust air (EA)

· Percentages below is for “Extra-High (100%)”
· You can set the data from 20% to 50% by the 1%.

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[751] SA power 0042: 42% 0033: 33% 0023: 23% 0024: 24% 0024: 24% 0028: 28% 0023: 23% [755] EA power 0040: 40% 0033: 33% 0023: 23% 0022: 22% 0021: 21% 0028: 28% 0025: 25%

As shown in the table on the left

• Max.: 0050 * Min.: 0020

“Low” fan speed power setting of supply air (SA) and exhaust air (EA)
752, 756

· Percentages below is for “Extra-High (100%)”
· You can set the data from 5% to 25% by the 1%.

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[752] SA power 0025: 25% 0017: 17% 0007: 7% 0018: 18% 0007: 7% 0012: 12% 0009: 9% [756] EA power 0020: 20% 0015: 15% 0008: 8% 0016: 16% 0006: 6% 0012: 12% 0010: 10%

As shown in the table on the left

• Max.: 0025 * Min.: 0005

63-EN

­ 32 ­

64-EN

­ 33 ­

Code

Description

SET DATA and description

Factory default

“High” fan speed air volume setting of supply air (SA) and exhaust air (EA) * “High” may be
“Extra-High”
759, 75D

· If you want to use “High setting”, it must be set to “DN code [5D] = 0000”
· Percentages below are for “Extra-High (100%)”
· You can set the data from 71% to 120% by the 1%.

DN code
Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[759] SA air volume [75D] EA air volume

0080: 80% 0080: 80%

As shown in the table on the left

• Max.: 0120 * Min.: 0071

Note
· These setting are for “Constant air volume control”. (for supply air and exhaust air)
· Setting change is necessary for all the Heat recovery ventilation unit in the group.
*3

75A, 75E

“Medium” fan speed air volume setting of supply air (SA) and exhaust air (EA)

· Percentages below is for “Extra-High (100%)”
· You can set the data from 51% to 70% by the 1%.

DN code
Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[75A] SA air volume [75E] EA air volume

0060: 60% 0060: 60%

As shown in the table on the left

• Max.: 0070 * Min.: 0051

“Low” fan speed air volume setting of supply air (SA) and exhaust air (EA)
75B, 75F

· Percentages below is for “Extra-High (100%)”
· You can set the data from 30(35)% to 50% by the 1%.

DN code
Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[75B] SA air volume [75F] EA air volume

0040: 40% 0040: 40%

As shown in the table on the left

• Max.: 0050 Min.: 0030 (SA) Min.: 0035 (EA)

1 Setting change is necessary for the header unit when installing the system with the Heat recovery ventilation unit only, or the smallest indoor unit address number of Heat recovery ventilation unit when using the system linked with Air conditioners.
2 This setting is for the system linked with Air conditioners system. 3 Setting change apply only to the unit that changed the data. 4 If you want to set the fan speed difference in 2 steps, for example SA = High and EA = Low, you also need
to set DN code [748]. 5 DN and DIP SW settings are given priority to later operations. 6 DN setting is possible only when DIP SW is “OFF” (factory default).

Changing the time before the Filter Sign lights up

· Setting change is necessary for all the header unit of Heat recovery ventilation unit when installing the system with the Heat recovery ventilation unit only.

• Refer to the “DN setting” section for how to set the DN code. (Same for the following setting items)

Code 01

SET DATA
Time before the Filter Sign lights up

0000 None

0001 150 H

0002
2500 H (Factory default)

0003 5000 H

0004 10000 H

Setting of auto recovery from a power failure

· Setting change is necessary for the header unit when installing the system with the Heat recovery ventilation unit only, or the smallest indoor unit address number of Heat recovery ventilation unit when using the system linked with Air conditioners.

Code 28

SET DATA
Auto recovery from a power failure

0000
Invalid (Factory default)

0001 Valid

65-EN

66-EN

Setting of the Heat recovery ventilation unit single operation (Setting for the header air conditioner)

· Setting change is necessary for the header unit of Air conditioners.

• This setting is for the system linked with Air conditioners system. * There are two ways to operate the remote controller (on the main screen or in the menu “11. Ventilation”). For
  details on operation, refer to the following.

Code 31

SET DATA Single operation of the fan

0000
Invalid (Factory default)

0001 Valid

Setting from the main screen
(1) on the main screen will change to (2) after 5 seconds.

Setting from the “Menu”
In “Menu”, select “Ventilation”.

(*1)
Push [ ] button.

Select item and push [ ] button.

(*2)
Select item and push [ ] button.

REQUIREMENT This setting is invalid when the operation is linked by a signal from an external device or remotely controlled on and off.

Setting of the unbalanced ventilation Fan speed

· SA / EA unbalanced operation of the Heat recovery ventilation unit is possible.
· Setting change is necessary for all the Heat recovery ventilation unit in the group.

• Setting change apply only to the unit that changed the data. * If you want to set the fan speed difference in 2 steps, for example SA = High and EA = Low, you also need to
  set DN code [748].

Code 48

SET DATA
Umbalanced ventilation fan speed (Main setting)

0000
Normal (Factory default)

0001
SA (High) > EA (Medium) or
SA (Medium) > EA (Low)

0002
SA (Medium) < EA (High) or
SA (Low) < EA (Medium)

Setting of 24-hour ventilation

· Setting change is necessary for all the Heat recovery ventilation unit in the group. * Setting change apply only to the unit that changed the data.

Code 49

SET DATA 24-hour ventilation

0000
Invalid (Factory default)

0001 Valid

Setting of delayed operation

· The operation of the Heat recovery ventilation unit is delayed by [Setting value] × 10 minutes (10 to 60 minutes) when the [ON/OFF] button is pressed. (Available when the operation of the Heat recovery ventilation unit is linked with that of Air conditioners.)
· Setting change is necessary for all the Heat recovery ventilation unit in the group.

• Setting change apply only to the unit that changed the data. * This setting is for the system linked with Air conditioners system.

Code 4B

SET DATA Delayed operation

0000
Invalid (Factory default)

0001 to 0006 [Setting value] × 10 minutes delay

Nighttime heat purge setting

· Nighttime heat purge exhausts hot air in the room by bypass mode and reduces the cooling load in the morning. Monitoring operation starts after [Setting value] × 1 hour(s). (1 to 48 hours)
· Setting change is necessary for all the Heat recovery ventilation unit in the group. Setting change apply only to the unit that changed the data. This setting is for the system linked with Air conditioners system.

Code 4C

SET DATA Nighttime heat purge

0000
Invalid (Factory default)

0001 to 0048
Start after [Setting value] × 1 hour(s)

67-EN

­ 34 ­

68-EN

­ 35 ­

Setting for operation of the exhausting fan below -20°C

· Stops the exhausting fan when the outdoor temperature falls below -20°C. · Setting change is necessary for all the Heat recovery ventilation unit in the group.

• Setting change apply only to the unit that changed the data. The air supplying fan stops regardless of this setting. When the indoor temperature is over 21°C, the exhausting fan stops even when the outdoor temperature is
  higher than -20°C.

Code 4D

SET DATA
Exhausting fan operation below -20°C

0000
Exhausting fan runs (Factory default)

0001 Exhausting fan stops

Setting for linked operation with external devices

· Specifies the operation of the Heat recovery ventilation unit linked with the on/off operation of external devices.

• Setting change is necessary for a Heat recovery ventilation unit to which an adapter for remote ON/OFF control (sold separately) is connected.

Code 4E

SET DATA
Linked operation with external devices

0000
ON/OFF linked (Factory default)

0001 ON linked

0002 OFF linked

0000: The Heat recovery ventilation unit starts / stops together with the starting / stopping of an external device. (The latter operation of the remote controller or the switch of the external device overrides the former.)
0001: The Heat recovery ventilation unit starts together with the starting of an external device. Use the remote controller to stop operation.
0002: The Heat recovery ventilation unit stops together with the stopping of an external device. Use the remote controller to start operation.

Ventilation mode setting

· The setting of the ventilation mode can be changed when the remote controller for Air conditioners RBC-ASCU1 and RBC-AMTU3 or a system without a remote controller is used.
· Setting change is necessary for the header unit when installing the system with the Heat recovery ventilation unit only, or the smallest indoor unit address number of Heat recovery ventilation unit when using the system linked with Air conditioners.

• When the remote controller RBC-AW(M)SU5* is installed, this setting is invalid. (Because the remote controller can be used for operation.)

Code EA

SET DATA Changing the ventilation mode

0000 Bypass mode

0001 Heat Exchange mode

0002
Automatic mode (Factory default)

Ventilation Fan speed setting

· The setting of the ventilation Fan speed can be changed when the remote controller for Air conditioners RBC-ASCU1 and RBC-AMTU3 or the system without the remote controller is used.
· Setting change is necessary for the header unit when installing the system with the Heat recovery ventilation unit only, or the smallest indoor unit address number of Heat recovery ventilation unit when using the system linked with Air conditioners.

• When the remote controller RBC-AW(M)SU5* is installed, this setting is invalid. (Because the remote controller can be used for operation.)

Code EB

SET DATA
Changing ventilation fan speed

0002
High (Factory default)

0003 Medium

0004
Unbalanced (High)

0011 Low

0012
Unbalanced (Medium)

• When [0004] or [0012] is selected, adjust setting of the unbalanced ventilation Fan speed (Code: [48]).

Setting for changing the operation output

· This operation output can be used to connect an auxiliary fan or operate an external device. (You can select the output pattern from the table below.)

• Setting change is nesessary for the Heat recovery ventilation unit to which an external device is connected.

Code

SET DATA

Changing the

ED

operation

output

0000
ON during normal
operation (Factory default)

0001

0002

ON during normal
operation, 24hour ventilation,
or nighttime heat purge operation

ON during 24hour ventilation
or nighttime heat purge operation

0003
ON when SA fan is running

0004
ON when EA fan is running

0000: Contact is on only during normal operation. Contact is off during 24-hour ventilation or nighttime heat purge operation. Contact is off during cold mode (while the temperature is below -10°C).
0001: Contact is on during normal operation, 24-hour ventilation, or nighttime heat purge operation. Contact is on when 24-hour ventilation is stopped intermittently. Contact is off when nighttime heat purge operation is on standby. (paused before the monitoring operation of the nighttime heat purge operation starts) Contact is off during cold mode (while the temperature is below -10°C).
0002: Contact is on during 24-hour ventilation or nighttime heat purge operation. Contact is on when 24-hour ventilation is stopped intermittently.

• Contact is off during normal operation or when the nighttime heat purge operation is on standby. (paused before the monitoring operation of the nighttime heat purge operation starts) Contact is off during cold mode (while the temperature is below -10°C).
  0003: Contact is on only when SA fan is running. Contact is off when 24-hour ventilation is stopped intermittently, so do not connect an auxiliary fan.
  0004: Contact is on only when EA fan is running. * Contact is off when 24-hour ventilation is stopped intermittently, so do not connect an auxiliary fan.
• Contact is off during delayed operation, when switching the damper (Heat exchange mode / Bypass mode), regardless of the selected value.

69-EN

70-EN

Abnormal signal / bypass mode signal output setting

· External output can be used to detect an abnormal signal / bypass mode signal output. Output signal to be detected can be selected.

• Setting change is nesessary for the Heat recovery ventilation unit to which an external output is connected. * When [0000] is selected, contact is on If there is any trouble on the connected Heat recovery ventilation unit.

Code EE

SET DATA
Changing the abnormal signal / bypass mode signal output

0000
ON when an abnormal signal is detected
(Factory default)

0001
ON when the bypass mode signal is detected

0000: Contact is on when an abnormal signal output is detected. 0001: Contact is on when the bypass mode signal output is detected.

• Contact is on during nighttime heat purge operation. Contact is off when the nighttime heat purge operation is on standby. (paused before the monitoring operation
  of the nighttime heat purge operation starts) Even when is displayed on the remote controller, contact is off during the Heat exchange mode.

Select of fan control type

· There are two types of fan control, so you can select one according to the local installation requirements. · Setting change is necessary for all the Heat recovery ventilation unit in the group. * Setting change apply only to the unit that changed the data.

Code 74E

SET DATA Fan control type

0000
Constant input power control (Factory default)

0001 Constant air volume control

Adjust for Constant input power control

· These setting are for “Constant input power control”. (for supply air and exhaust air fan motor power) · This power setting can be adjusted when the duct length is significantly different between the supply air and the
exhaust air. · All percentages can be set as a ratio to Extra-High mode (100%). In case of “Extra-High”, the air volume will be fixed at 100%.
(Therefore, the power percentage cannot be changed in “Extra-High” mode.) Must change for “DN code [5D] = 0000” when changing the power percentage for “High” fan speed. · Do not set the power of each fan speed to be High < Medium or Medium < Low. · Setting change is necessary for all the Heat recovery ventilation unit in the group. * Setting change apply only to the unit that changed the data. · When adjusting the data in the table, refer to the P-Q graph below.

Code

SET DATA

(Factory default)
· If you want to use “High setting”, it must be set to “DN code [5D] = 0000”
· You can set the data from 40% to 100% by the 1%. * Max.: 0100, Min.: 0040

750, 754

“High” fan speed power setting of supply air (SA) and exhaust air (EA)

• “High” may be “Extra-High”

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[750] SA power 0067: 67% 0066: 66% 0051: 51% 0054: 54% 0050: 50% 0054: 54% 0050: 50% [754] EA power 0060: 60% 0066: 66% 0050: 50% 0053: 53% 0048: 48% 0055: 55% 0052: 52%

· You can set the data from 20% to 50% by the 1%. * Max.: 0050, Min.: 0020

“Medium” fan speed power setting 751, 755 of supply air (SA) and exhaust air
(EA)

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[751] SA power 0042: 42% 0033: 33% 0023: 23% 0024: 24% 0024: 24% 0028: 28% 0023: 23% [755] EA power 0040: 40% 0033: 33% 0023: 23% 0022: 22% 0021: 21% 0028: 28% 0025: 25%

· You can set the data from 5% to 25% by the 1%. * Max.: 0025, Min.: 0005

“Low” fan speed power setting of 752, 756 supply air (SA) and exhaust air
(EA)

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[752] SA power 0025: 25% 0017: 17% 0007: 7% 0018: 18% 0007: 7% 0012: 12% 0009: 9% [756] EA power 0020: 20% 0015: 15% 0008: 8% 0016: 16% 0006: 6% 0012: 12% 0010: 10%

71-EN

­ 36 ­

72-EN

­ 37 ­

Adjust for Constant air volume control

· These setting are for “Constant air volume control”. (for supply air and exhaust air) · This setting can keep the rated air volume even if the pressure loss varies depending on the duct. · All percentages can be set as a ratio to Extra-High mode (100%). * In case of “Extra-High”, the air volume will be fixed at 100%.
(Therefore, the air volume percentage cannot be changed in “Extra-High” mode.)

• Must change for “DN code [5D] = 0000” when changing the air volume percentage for “High” fan speed. · Do not set the air volume of each fan speed to be High < Medium or Medium < Low. · Setting change is necessary for all the Heat recovery ventilation unit in the group. * Setting change apply only to the unit that changed the data. · When adjusting the data in the table, refer to the P-Q graph below.

Code

SET DATA

(Factory default)
· If you want to use “High setting”, it must be set to “DN code [5D] = 0000”
· You can set the data from 71% to 120% by the 1%. * Max.: 0120, Min.: 0071

759, 75D

“High” fan speed air volume setting of supply air (SA) and exhaust air (EA)

• “High” may be “Extra-High”

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[759] SA air volume [75D] EA air volume

0080: 80%

0080: 80%

· You can set the data from 51% to 70% by the 1%. * Max.: 0070, Min.: 0051

“Medium” fan speed air volume 75A, 75E setting of supply air (SA) and
exhaust air (EA)

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[75A] SA air volume [75E] EA air volume

0060: 60%

0060: 60%

· You can set the data from 30(35)% to 50% by the 1%. * Max.: 0050, Min.: 0030(SA) / 0035(EA)

“Low” fan speed air volume 75B, 75F setting of supply air (SA) and
exhaust air (EA)

DN code Class
150 m³/h 250 m³/h 350 m³/h 500 m³/h 650 m³/h 800 m³/h 1000 m³/h

[75B] SA air volume [75F] EA air volume

0040: 40%

0040: 40%

P-Q graph
Use the graph below as a guide for adjusting the data.
150 m³/h
250

P-Q Curve * When friction coefficient of pipe (duct): = 0.02
250 m³/h
300

External static pressure (Pa)
Equivalent pipe length
External static pressure (Pa)

200

90%

Extra High 100%

80% 150
70%

60%

50%
100 40%

30%

50

60%

30 m 20 m 10 m

Low 25%
0 0

40% 50

80%

Extra High 100%

100

150

200

250

Air Volume (m³/h)

250

Extra High

100%

90%

80% 200
70%

100 m

Equivalent pipe length

60%

150

50%

80 m

40%

60 m

100

30%

20%

60%

50

Low 16%

40%

0

0

50 100 150

80% 200

40 m
20 m Extra High 100% 250 300 350

Air Volume (m³/h)

External static pressure (Pa)
Equivalent pipe length
External static pressure (Pa)

350 m³/h
500

450

400

Extra High

100%

350

90% 80%

70% 300
60%

250

50%

40%

200 30%

150
20% 60%
100

50 Low 8%
0
0

40% 100

80%

200

300

Air Volume (m³/h)

100 m 80 m 60 m 40 m

20 m
Extra High 100%

400

500

500 m³/h
500

450

400

Extra High

90%

100%

80% 350
70%

300

60%

50%

250

40%

200

30%

E10x0tr%a HigEhquivalelenngtthpip1e00 m

150

25%

80%

80 m

60%

100

Low

23%

50

40%

60 m 40 m 20 m

0 0 100 200 300 400 500 600 700
Air Volume (m³/h)

73-EN

74-EN

650 m³/h
500

450

External static pressure (Pa)

400

Extra High

350

70%

100%

100 m

60%

300

50%

250

40%

80 m

80%

30%

200

90%

60 m

20%

150

14%

60% 80%

40 m

100 Low
50 12% 40%
0

20 m
Extra High 100%

0 100 200 300 400 500 600 700 800 900

Air Volume (m³/h)

Equivalent pipe length
External static pressure (Pa)

P-Q Curve * When friction coefficient of pipe (duct): = 0.02
800 m³/h
500

450

400

Extra High

350

90% 100%

80% 300
70%

250

60%

50%

200

40%

30% 150

20%

Extra High 100% Equivalelenngtthpip1e00 m
80 m

100

60% 80%

60 m

Low

40 m

50 11% 40%

20 m

0

0

200

400

600

800 1000 1200

Air Volume (m³/h)

1000 m³/h
700

600

External static pressure (Pa)

500 90%

80%

400

70%

40%

60%

300

30%

50%

20%

200 15%

100
Low 9% 40%

0

0

200 400

60% 600

Extra High 100%

80%

E10x0tr%a HEiqguhivalelenng1tt0hp0ipem 80 m 60 m 40 m 20 m

800 1000 1200 1400

Air Volume (m³/h)

Remote controller switch monitoring function

This function is available to call the service monitor mode from the remote controller during a test run to acquire temperatures of sensors of indoor unit (Heat recovery ventilation unit).

1 Push [ Menu] to open the “Menu”

2 Push and hold [ Menu] and [
open “Field setting menu”
Push and hold 4 seconds.

] at the same time to

3 In the “Field setting menu” screen, push [ ] and
[ ] to select “Monitor function”, and then push [ Set/Fix] Push [ ] and [ ] to change the code and then check the data. In a group connection, after a selection in the unit selection screen,
move to the “Monitor function” screen.

4 Push [ Return] Return to the “Field setting menu” screen.

CODE No.

Indoor unit data (Heat recovery ventilation unit) Data name

02

Return air temperature (TRA)

07

Supply air actual fan speed (× 1 rpm)

ED

Relative humidity (× 1%)

EE

Trouble sub-code

• For example “P12” trouble

Sub-code 0000 0001 0002

Description Normal SA motor trouble EA mot

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