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Mitsubishi Electric PUZ-ANHA7 Serie Manuel D'installation page 12

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9. System control (Fig. 9-1)
E SW 1 - 3 ~ 6
ON
OFF
3
4
ON
F SW 1 - 3 ~ 6
OFF
3
4
G SW 1 - 3 ~ 6
ON
OFF
3
4
A E
TB1
TB1
TB4
TB4
B
B
2
TB5
TB5
1
D
C
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.
en
11
A Outdoor unit
B Indoor unit
C Master remote controller
5
6
D Subordinate remote controller
E Standard 1:1 (Refrigerant address = 00)
F Simultaneous twin (Refrigerant address = 01)
G Simultaneous twin (Refrigerant address = 02)
5
6
5
6
A
F
A
G
TB1
TB4
TB4
TB4
B
B
B
2
TB5
1
Fig. 9-1
• 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 .
SW1
Function
Function table
1 Compulsory
<SW1>
defrosting
2 Error history
ON
SW1
clear
OFF
function
3
Refrigerant
1 2 3 4 5 6
settings
4
system
5
dress setting
6
Operation according to switch setting
ON
OFF
Start
Normal
Clear
Normal
Settings for outdoor unit addresses
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