Chiltrix AC series Heating & Cooling series CX30, Installation And Operation Manual

Page: 48 / 49

Chiltrix Inc. www.Chiltrix.com
48
P2 Low pressure
protection
Flash’s 9
times 1. Low pressure switch
loose or faulty.
2. Throttling device
(expansion valve)
problem
3. Heat expansion valve
needs to be
preheated.
4. Refrigerant low (leaks)
1. If the error displays before
the compressor starts, it
means low pressure switch
error. Please reconnect the
low pressure switch or change
it.
2. Open the thermostatic
expansion valve 360~180°.
3. Disconnect the power for 3
minutes, connect power again
and turn on the unit. Repeat
this 2 or 3 times to preheat
the expansion valve.
4. Check for refrigerant leakage.
P5 outdoor unit
water flow
fault No flash
1. Low water flow.
2. Water flow switch
fault.
1. Clean the water filter, check
water pump flow.
2. Check and reconnect water flow
switch.
P6 outdoor unit
(water source
side) water
flow fault
Flash’s
17
times 1. Water source side
water flow too small.
2. Water flow switch
fault.
1. Clean the water filter, check
water pump flow. Test the water
flow switch.
P7 phase loss Flash Power connection fault Reconnect power supply wires
P8 Flash Power connection fault Reconnect power supply wires
P9 Flash Power supply connection
fault or communication
between refrigeration pcb
and water control pcb. 1. Check the power supply
wire connection and wires
between IPM pcb and the
Refrigeration pcb.
2. Check the water control
PCB for loose connections.