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• Set the refrigerant address using the DIP switch of the outdoor unit.
1 Wiring from the Remote Control
This wire is connected to TB5 (terminal board for remote controller) of the indoor
unit (non-polar).
2 When a Different Refrigerant System Grouping is Used.
Up to 16 refrigerant systems can be controlled as one group using the slim MA
remote controller.
Note:
In single refrigerant system (twin), there is no need of wiring
2
.
A Outdoor unit
B Indoor unit
C Master remote controller
D Subordinate remote controller
E Standard 1:1 (Refrigerant address = 00)
F
Simultaneous twin (Refrigerant address = 01)
G
Simultaneous twin (Refrigerant address = 02)
E SW 1 - 3 ~ 6
F SW 1 - 3 ~ 6
G SW 1 - 3 ~ 6
9. System control (Fig. 9-1)
Fig. 9-1
SW1
Function table
<SW1>
Function
Operation according to switch setting
ON OFF
SW1
function
settings
1 Compulsory
defrosting
Start Normal
2 Error history
clear
Clear Normal
3
4
5
6
Refrigerant
system ad-
dress setting
Settings for outdoor unit addresses
0 to 15
TB1
A GFAA E
B B B B B
D
C
TB1 TB1
TB4
TB5
TB4
TB5
TB4 TB4
TB5
TB4
1
1
2
ON
OFF
ON
OFF
ON
OFF
3 4 5 6
3 4 5 6
3 4 5 6
ON
OFF
2
10. Low ambient cooling
Precautions for low ambient cooling
• If the outdoor temperature is 23 °F or lower during cooling operation, install an optional air guide to prevent wind from blowing into the outdoor unit.
• Install the outdoor unit in a location where wind will not blow onto the back of the unit.
• To prevent damage to the parts, be sure to install the unit, turn on the main power, and perform service in an environment where the ambient temperature is 0 °F or higher.
• In order to protect the compressor and electrical components, do not turn off the circuit breaker if the unit is installed in an environment where the ambient temperature is 0
°F or lower.
• It needs at least 12hr standby to operation in order to warm the electrical parts.
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