Omega HRV-200 Owners Manual And Installation Manual page 27

MCAC-KTSM-2009-03
Check: whether Lack of phase
Check the connection between power supply and
terminal, is the voltage in outdoor terminal is 3 phase.
Check: whether Phase sequence error
Change the order of two of the wires to power supply.
If the problem can not be solved, the main controller panel is defective
Heat Recovery Ventilation
Phase absent, phase error
Yes
Switch on the unit again.
Troubleshooting
No
Connect it well.
21