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MUL
TI V 5 Outdoor Unit Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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Setting Outdoor Units in Dual / Triple Frame Systems
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 Systems
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).
•
Push the ►(SW03C) button to change “HR” (heat recovery) to “HP” (heat pump), then press the confirm (SW01C) button.
• 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
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
Heat Pump System DIP Switch Setting on Outdoor Units
(Manually Set).
Master, Slave1, and Slave2 DIP Switch Settings.
Pre-commissioning Start / Outdoor Unit DIP Switch Settings
Pre-Commissioning Process
After successfully completing the leak / pressure check and triple evacuation procedures, begin the pre-commissioning process. The
pre-commissioning process will prepare the system for commissioning in several steps:
Prepare the Electrical System
Multi V outdoor units require either 208-230V / 60Hz / 3Ø or 460V / 60Hz / 3Ø power. Verify that the power and phase requirements are cor-
rect and all three legs are present. Make sure that the power imbalance ratio between phases is no greater than 2%. If the electrical power is
dirty, the unit may shutdown on a compressor safety and/or the lifespan will be reduced.
Multi V outdoor units are inverter driven.
Do not install a phase-leading capacitor. If one is included, it will deteriorate the power factor
improvement effect, and may cause the capacitor to generate an abnormal amount of heat.
1. Verify correct, clean, specified power is at the line side of each system component’s disconnect.
2. Note if the green LED light on the component PCB board is illuminated.
3. If an air cleaner is installed on a high static ducted model indoor unit, verify power has been provided to the air cleaner controller. Verify
by observing the LED in the center of the disconnect plate is illuminated.
4. If a zone controller (Remote Unit controller on the Hydro Kit) is connected to the component, verify the LCD screen displays current oper-
ational characteristics.
1. Verify facility power is correct.
2. Power up the system.
3. Verify power at the system is correct.
4. Run self diagnostics check.
5. Assign a system address to indoor units.
6. Assign addresses to heat recovery units
(heat recovery systems only).
7. Assign each central control device an
address.
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.
PRE-COMMISSIONING
