Ⅱ
-
14
Basic wiring diagram: Case 2
If the indoor/outdoor control cables are connected to other W Multi units or
3WAY Multi outdoor units (linked wiring)
Make sure the outdoor units are operating.
Perform the procedure for automatic address setting using the outdoor unit with the smallest address.
(See the sections on automatic address setting below.)
Outdoor
unit
1-1
Outdoor
unit
2-1
System 3 (3WAY Multi)
Outdoor
unit
3
Outdoor
unit
1-2
Outdoor
unit
2-2
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Tubing
Tubing
Tubing
Remote
controller
Indoor/outdoor
control cable
Indoor/outdoor
control cable
Indoor/outdoor
control cable
Indoor/outdoor
control cable
Indoor/
outdoor
control
cable
Indoor/outdoor
control cable
U-10MES2E8
System 2 (W Multi)
System 1
U-20GES3E5
Connection cable for group remote control
Fig. 10
Set the indoor unit addresses using one of the following methods, depending on wiring configurations for the power
cables.
Case 1
If the power can be turned on separately for each refrigerant tubing system
Indoor unit addresses can be set without actually running the outdoor units (however, their power must be on).
(1) Select the
(initial settings) menu item to display
on the outdoor unit (with the smallest
address) in the refrigerant tubing system for which you want to set addresses.
(2) Use the UP and DOWN keys to select the automatic address setting with heating operation (
).
(3) Press and hold the SET key for 1 second.
The setting in progress indicator light, and automatic address setting begins.
When the indicator turns off, automatic address setting is completed.
(4) Turn on the power for the next system (this system should be the only system turned on), and perform steps (1) to (3)
above.
(5) Repeat the above steps until automatic address setting is finished for all the indoor units.
Case 2
If the power cannot be turned on separately for each refrigerant tubing system
In this case, automatic address setting is performed with the indoor and outdoor units operating. Be sure to complete the
refrigerant tubing work and fuel piping work before setting the addresses.
Set SW002 (VG) and SW001 (STOP SW) on the outdoor unit control board to “NORM”. If these switches are set to “OFF”
or “STOP”, the engine will not start.
<Automatic address setting with heating operation>
(1) Turn on power to all systems.
(2) Select the
(initial settings) menu item to display
on the outdoor unit (with the smallest
).
address) in the refrigerant tubing system for which you want to set addresses.
(3) Use the UP and DOWN keys to select the automatic address setting with heating operation (
(4) Press and hold the SET key for 1 second.
The setting in progress indicator light, and automatic address setting begins.
When the indicator turns off, automatic address setting is completed.
(5) Perform steps (2) to (4) above on the outdoor unit in the next system.
(6) Repeat the above steps until automatic address setting is finished for all the indoor units.
Summary of Contents for GHP
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