EAS Electric EBP08WZRN, Instruction Manual

Page: 62 / 89

protection 2. High-pressure
switch is
damaged
；
3. Refrigerant
system block
；
4. EEV deadlock.
or water pump flow
is not enough;
2. Check if high-
pressure switch is off
3. Check if refrigerant
system is blocked
4. When heat pump is
off and turn the heat
pump on and off to
check if EEV can
be listened by sound of
reset.
of larger water flow;
2. Change a new
high-pressure switch
3. Change a new filter
4. Change a new EEV
P03
Low
pressure
protection
1.
2.
Lack of gas
Refrigerant
system block
3. Exceed heat
pump operation
range
1. Check if gas system is
leaking
2. Check if filter is
blocked
3. Check ambient
Temp. and water
temp.is over limitation
1. Amend the leakage
and reinject the gas
2. Change a new filter
P04
T3 Coil
overheat
protection
1. Heat Pump fan
blowing area is
blocked
2.Evaporator is
blocked
3. T3 coil sensor
position was
changed
1. Check if the blowing
area is open
2.Check if the
evaporator is blocked
3.Check if the coil
sensor resistance value
is correct
1. Put away the blow
area
2.Clean the evaporator
3.Change a new sensor
P05
Exhausting
gas
temperature
protection
1. Lack of gas
2. Sensor position
was changed
1. Check if refrigerant
system is leaking
2.Check if the sensor
resistance value is
correct
1. Amend the leakage
and reinject the gas
2.Change a new sensor
P06
Outlet water
temperature
anti-freezing
protection
1. Lower water
flow
；
2. Heat
exchanger
blocked
；
3. Y-shaped filter
blocked
；
4. Overlow load.
1. Check if air exists in
water system
；
2. Plate heat
exchanger if blocked
；
3. Check if Y-shaped
filter has block
；
4. Check design of
indoor water system if
reasonable, if have
water bypass.
1.If drain valve has
problem,change a new
one
2. blow plate heat
exchanger with water
or high-pressure gas
through reverse
direction ；
3. clean Y-shaped filter;
4. water system must
have bypass.
P07
Pipe
temperatu-
re anti-
freezing
protection
1. System lack of
gas
；
2. Water sytem
has block
；
3. Cooling system
has block.
1. Check system if any
leakage
；
2. Check Y-shaped
filter has block
；
3.
Check if cooling
system filter has
block.
1. Fix leakage and
re-charge gas
；
2.Clean Y-shaped
filter
；
3.Change filter.
V.1 17