protection
2. High-pressure switch
is damaged;
3.Refrigerant
block;
4EEV deadlock 。
1. Lack of gas
2.Refrigerant
Low
pressure
block;
P03
protection
3.Exceed
operation range
1.
T3
Coil
2.
P04
overheat
protection
3.
Exhausting gas
1.
P05
temperature
2.
protection
1. lower water flow;
2. heat exchanger
Outlet water
blocked;
temperature
P06
3. Y-shaped filter
anti-freezing
blocked;
protection
4. Overlow load。
1. sytem lack of gas;
Pipe
2. water sytem has
temperature
block;
P07
anti-freezing
3. cooling system has
protection
block。
enough or water pump flow is
not enough;
system
2.
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
listenned by sound of reset.
1. Check if gas system is leaking
system
2. Check if filter is blocked
3. Check ambient Temp.and
heat
pump
water temp.is over limitation
Heat
Pump
fan
blowing
area
is
1. check if the blowing area is
open
blocked
Evaporator
is
2. check if the evaporator is
blocked
blocked
T3
coil
sensor
3. check if the coil snesor
position
was
resistance value is correct
changed
1. Ceheck if refrigerant system
Lack of gas
is leaking
sensor position was
2. check
changed
resistance value is correct
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. check system if any
leakage;
2. check Y-shaped filter has
block;
3. check if cooling system filter
has block。
Check
if
high-pressure
if
the
snesor
16
new pump of larger water flow;
2. Change a new high-pressure
switch
3. change a new filter
4.Change a new EEV
1. Amend
the
leakage
reinject the gas
2. change a new filter
1. Put away the blow area
2. Clean the evaporator
3. Change a new sensor
1. Amend
the
leakage
reinject the gas
2. Change a new sensor
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.
通 water system must have
bypass。
1. fix leakage and re-charge gas;
2. clean Y-shaped filter;
3. change filter。
and
and
;
V.2