96
MUL
TI V 5 Outdoor Unit Service Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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On the DIP-SW01 bank (Main PCB), one (1) outdoor unit must be set on DIP-SW01 bank to the Master unit and the other units set to the
Slave(s) unit(s) or errors will be generated.
Setting Outdoor Units to Heat Pump or Heat Recovery System
Outdoor units are factory set to heat recovery operation—all switches on DIP Switch bank SW01 are set to OFF.
All outdoor unit(s) (master
and slave[s]) MUST be manually set to a heat pump system.
To change the factory set heat recovery system to a heat pump system:
• Flip switch No. 4 on the DIP-SW01 bank to ON. Display will show “HR” (heat recovery).
•
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• Flip switch No. 4 on the DIP-SW01 bank to OFF, and push the reset (SW01D) button to restart the system. If No. 4 on the DIP-SW01 bank
is switched to ON again, “HR” (heat recovery) or “HP” (heat pump) can be verified by reading the display later.
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
Figure 40: Heat Recovery System DIP Switch Setting on Outdoor Units
(Factory Set).
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
Figure 41: Heat Pump System DIP Switch Setting on Outdoor Units
(Manually Set).
Figure 42: Master, Slave1, and Slave2 DIP Switch Settings.
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
1 2
7
6
5
4
3
1 2
7
6
5
4
3
ON
OFF
Master Outdoor Unit
Slave1 Outdoor Unit
Slave2 Outdoor Unit
• For the DIP-SW01 bank on the master unit,
all DIP switches must be set to off.
• For the DIP-SW01 bank on the slave 1
unit, set only DIP switch 6 to ON.
• For the DIP-SW01 bank on the slave 2
unit, set only DIP switch 7 to ON.
OUTDOOR UNIT DIP SWITCH SETTINGS
