Haier HP200M2 Manual

Heat Pump Water Heater
Installation and Service Manual
Model
HP200M2
HP250M2
HP250CM2
Please read this manual carefully prior to your use of this water heater.
The appearance of the water heater given in this manual is for reference only.

2
Contents
1. Product safety statement.......................................................................................................... 3
2. Functionings & principles .................................................................................................... 4
3. Technical parameters ............................................................................................................ 5
4. Description of parts and components ................................................................................. 6
5. Installation introduction ........................................................................................................11
6. Operating and settings.............................................................................................................. 22
7. Faults and protection ............................................................................................................... 25
8. Faults and protection .................................................................................................................26
9. The method of dismantling products ........................................................................................33
10. Repairs common tools ............................................................................................................38

3
1.Productsafetystatement
1. This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
2. Children shall be closely supervised to make sure they stay away from this product.
3. The method of installing safety valve please refer to Page 16.
4. The water may drip from the discharge pipe of the pressure relief device and this pipe must be
left open to the atmosphere.
5. The water heater is to be drained according to the instructions specified on page 27.
Safety instructions (to be followed at any time)
Refrigerant: R134a; When handling product, you should
- No smoking
- Prevent the accumulation of electrostatic charges
- Work in a well ventilated place.
- Avoid contact with the skin and eyes
- Do not inhale the vapours
- Evacuate the hazardous area
- Stop the leakage

4
2.Functionings&principles
A low-pressure liquid refrigerant is vaporized in the heat pump's evaporator and passed into the
compressor. As the pressure of the refrigerant increases, so does its temperature. The heated
refrigerant runs through a condenser coil within the storage tank, transferring heat to the water
stored there. As the refrigerant delivers its heat to the water, it cools and condenses, and then
passes through an expansion valve where the pressure is reduced and the cycle starts over.

5
3. Technical parameters
Model HP200M2 HP250M2 HP250CM2
Tank volume 200L 250L 245L
Rated voltage/ frequency 230V/50Hz 230V/50Hz 230V/50Hz
Tank rated pressure 0.85MPa 0.85MPa 0.85MPa
Corrosion protection Magnesium rod Magnesium rod Magnesium rod
Water proof grade IPX4 IPX4 IPX4
Type of extraction Ambient / Exterior Ambient / Exterior Ambient / Exterior
COP@7
℃
/ EN16147 2.5 2.5 2.5
COP@15
℃
/ EN16147 2.9 2.9 2.9
Tapping cycle L L L
Electric heater power 2150W 2150W 2150W
Average input - heat pump only 665W 665W 665W
Maximum input- heat pump only 850W 850W 850W
Maximum total power input of the
appliance 3000W 3000W 3000W
Standby power input/ Pes 33W 33W 33W
Max volume of usable hot water at 40
℃
setting at 55 ℃
230L 300L 275L
Heating up time (7
℃ ) 6.5h 8.5h 8.2h
Heating up time (15
℃ ) 5.0h 6.8h 6.7h
Default temperature setting 55
℃ 55 ℃ 55 ℃
Temperature setting range- with heater 35 ℃ -75 ℃ 35 ℃ -75 ℃ 35 ℃ -75 ℃
Pressure drop in air circuit 25Pa 25Pa 25Pa
Max working pressure of refrigerant 0.8/2.8MPa 0.8/2.8MPa 0.8/2.8MPa
Refrigerant type / weight R134a/0.9kg R134a/0.9kg R134a/0.9kg
Noise pressure level (2m) 40dB 40dB 40dB
Ambient temperature for use of product -5~35
℃ -5~35 ℃ -5~35 ℃
Operating temperature of heat pump -5~35 ℃ -5~35 ℃ -5~35 ℃
Water inlet and outlet connection G3/4"F G3/4"F G3/4"F
Safety valve connection G3/4"F G3/4"F G3/4"F
Drain & Water intlet connection G3/4"F G3/4"F G3/4"F
Product Dimensions
600*629*1692mm 600*629*1987 mm 600*629*1987 mm
Packing dimension without pallet 736*695*1810 mm 736*695*2120 mm 736*695*2120 mm
Packing dimension with pallet 736*695*1940 mm 736*695*2250 mm 736*695*2250 mm
Net/Gross weight 104/118kg 117/131kg 136/150kg
* The COP and noise level data was tested in Haier lab
Tank
Performances
Dimension and connections

6
4. Description of parts and components
Heat pump structure（HP200M2/HP250M2）
Safety
valve
Outlet of
condensation water
Air inlet
Inlet for cold
water/drain
outlet
Hot water
outlet
Air outlet

7
Heat pump structure（HP250CM2）
Safety
valve
Outlet of
condensation water
Air inlet
Inlet for cold
water/drain
outlet
Hot water
outlet
Air outlet
HP250CM2
Circulating
entrance
Circulating
exit
Sensor pocket

8
Exploded view
Heat pump system components
1. Compressor
The compressor is to effect a low-temperature low-pressure evaporator refrigerant vapor sucked
and compressed into high temperature and pressure of the superheated vapor, and then discharged
to the condenser heat exchanger.
Inspiratory pipe
Exhaust pipe
Wiring box
5
6
7
9
10
13
12
11
12
3
4
14
15
8
Boiler signal wire
(HP250CM2 only)
(2*0.75mm2,White wire)
Power cable (3*1.5mm2)
Off-peak power
signal wire
(2*0.75mm2 ,Black wire)
Solar or boiler sensor
(HP250CM2 only)
(From heat pump)
1 Electric heater
2 Electric cover
3 Front cover - down
4Display panel
5Front cover - up
6 Control box
7
Compressor
8 Air grille
9Air channel - up
Air channel - down
10 Fan
11 Four-way valve
12
Top cover
Tank case
13
14
15 Handle
S/N Description

2. E
v
Eva
p
3. C
A c
o
con
d
4. T
h
The
pres
the
t
5. F
i
It’s
i
can
v
aporato
r
p
orato
r
effec
t
ondenser
o
ndenser: hi
g
d
ensation, th
e
h
ermal expa
n
refrigerant
p
sure is redu
c
t
hrottling pro
i
lte
r
i
nterio
r
has a
filter out im
p
t
s: it makes t
h
g
h-temperat
u
e
refrigerant
v
n
sion valve:
p
asses throu
g
c
ed to the ev
a
cess.
filter and de
p
urities in the
h
e liquid refr
i
u
re high-pres
s
v
apor discha
r
g
h the ther
m
a
poration pr
e
siccant, the
d
refrigerant.
9
i
gerant abso
r
s
ure refriger
a
r
ge heat, the
h
m
al expansio
n
e
ssure, part
o
d
esiccant abs
o
r
bs heat and i
s
a
nt vapor is
h
eat is absor
b
n
valve, the
p
o
f the refrige
r
o
rbs moistur
e
s
evaporated
condensed i
n
b
ed by the he
a
p
ressure fro
m
r
ant will eva
p
e
fro
m
the re
f
into steam.
n
to liquid, d
u
a
ting mediu
m
m
the conde
n
p
orate into
g
f
rigerant, the
u
ring
m
.
n
sing
g
as in
filte
r

6.
H
Hig
h
syst
e
7. S
e
Ser
v
nee
d
8. F
a
It f
o
effi
c
H
igh Voltage
S
h
-voltage sw
i
e
m compone
n
e
rvice valve
v
ice valve is
d
le, sales sta
ff
a
n
o
rced air thr
o
c
iency of the
S
witchgea
r
i
tch is to pr
e
n
ts, high-pre
s
mainly use
d
ff
can vacuu
m
o
ugh the duc
t
heat exchan
g
e
vent excessi
v
s
sure of the
h
d
for filling
r
m
infusion re
fr
t
, and then f
l
g
er.
Se
r
nuts
10
v
e pressure
i
h
igh-voltage
s
r
efrigerant, a
f
fr
igerant fro
m
l
ows through
r
vice valve
i
n the syste
m
s
witch is 2.8
M
f
ter removin
g
m
here.
a heat exch
a
m
, thus affect
i
M
Pa.
g
the nuts, i
t
a
nger to imp
r
i
ng the life
o
t
contains a
v
r
ove heat tr
a
o
f the
v
alve
a
nsfer

9.
R
Hea
t
can
s
5.
I
a. I
- D
o
- In
s
con
d
- N
o
- M
a
- T
h
- T
h
of t
h
- T
h
- I
will
- It
s
- T
h
- In
s
- Te
R
efrigerant
t
pump refri
g
s
appearance
I
nstalla
t
nstallatio
n
o
not install t
h
s
tall the appl
i
d
ensate wate
r
o
ise due to o
p
a
ke sure ther
e
h
ere is no stro
h
ere is no sul
f
h
e machine a
n
h
e water pipe
t shall not b
e
not be affec
t
s
hall not be s
e
h
e air taken i
n
s
tall the appl
i
mperature o
f
g
erant is R13
4
is as follows
:
t
ion intr
o
n
precauti
h
e water heat
i
ance on a fl
a
r
can be drai
n
p
erating and
a
e
is sufficien
t
ng electrom
a
f
ur gas or mi
n
n
d the fitting
s
for the wate
r
e
set in roo
m
t
ed.
e
t inside a to
t
n
must in no
e
i
ance in a dr
y
f
the ambien
t
4
a, ODP val
u
:
o
ductio
n
on
er in the pos
i
a
t, solid surf
a
n
ed freely.
a
ir flow do n
o
t
space left f
o
a
gnetic interf
e
n
eral oil exis
t
s
.
r
heater used
a
m
s where a h
e
t
ally-enclose
d
e
vent be dust
y
y
, frost-free r
o
t
air or of t
h
11
u
e is 0, no d
a
n
i
tion where e
x
a
ce. The surf
a
o
t bother nei
g
o
r installation
e
rence aroun
d
t
ing at the in
s
a
t temperatu
r
e
ating syste
m
d
space.
y
.
o
om.
h
e air taken i
a
mage to the
x
posed to ga
s
a
ce can supp
o
g
hbors.
and mainte
n
d
that may a
ff
s
tallation pla
c
r
es below 0°
C
m
is used so t
h
n by the he
a
ozone layer.
s
, vapours or
o
rt the machi
n
ance.
ff
ect control
f
c
e, which m
a
C
shall not fr
e
h
at heating s
u
a
t pump for
o
R134a refri
g
dust.
ne weight a
n
f
unctions.
a
y cause corr
o
e
eze.
u
pply to the
r
o
ptimum run
n
g
erant
n
d the
o
sion
r
oom
n
ing:

12
from 10 to 35°C.
Keep an adequate distance between the working heat-pump and the resting places.
b. Installation dimensions (mm)
HP200M2/HP250M2 HP250CM2

13
Pipe connection
＞200mm
＞500mm
Air outlet
Pipe 160mm
Display
Air inlet

14
- Remove vent grid first.
- Install diameter 160mm duct.
- Pressure drops from duct must be lower than or equal to the static pressure of the fan.
- If the pressure drops out of range, the performance of the appliance will be impaired.
Maximum length of the air connection 5m (Diameter of air connection 160 mm).
c. Advised positions
Garage or laundry room (without ducts):
-Unheated room.
-Enables recovery of the free energy released by your vehicle’s engine when switched off after use
or by household appliances in operation.
Laundry room (with one duct):
-Unheated room.
-Enables recovery of the free energy released by your vehicle’s engine when switched off after use
or by household appliances in operation.
-Referring installer menu, adjust the fan speed.

15
Habitable room or outside air (with two ducts):
-Can obtain free heat from the garage.
-If the outside air temperature is low, connection to the outside air may lead to overconsumption
of electricity.
-Referring installer menu, adjust the fan speed
d. Installation caution
When making the connections, you should respect the standards and local directives.
- Before making the connection, rinse the drinking water inlet pipes and water tank exchanger
(HP250CM2),in order not to introduce metal or other particles into the tank.
- Select copper pipes for pipeline connection.
- The inlet water pressure is between 0.1~0.6MPa. If lower than 0.1 MPa, a booster pump shall be
added at the water inlet; if higher than 0.6 MPa, a pressure relief valve shall be added at the water
inlet.
- The inlet water temperature is suggested between 10-30°C.
- Outdoor water pipeline and valves should be proper insulated.
- In accordance with safety rules, a 8.5bar safety valve must be installed on the tank. For France,
we recommend hydraulic safety units fitted with a membrane with the NF marking.
Integrate the safety valve in the cold water circuit. Install the safety valve close to the tank in a
place which is easy to access. The safety unit and its connection to the tank must be of at least the
same diameter as the cold water supply pipe in the tank's domestic circuit.
No isolating devices should be located between the safety valve or unit and the tank.
- The outlet pipe in the valve or safety assembly must not be blocked.
- The diameter of the safety unit and its connection to the calorifer must be at least equal to the
diameter of the domestic cold water inlet on the calorifer.

16
- If the mains pressure exceeds 80% of safety valve, a pressure reducer must be installed upstream
of the appliance.
.
Do not connect the domestic hot water connection directly to copper pipes in order to prevent
galvanic couples in iron/copper (risk of corrosion). It is compulsory to fit the domestic hot water
connection with a dielectricconnection (not supplied).
- Pressure relief valve, thermostatic valve, stop valve, check valve, T&P valve and French
combination valve are not included in the accessories, please select proper fittings in
local market;
- Valves with NF/CE certification are recommended

17
e. Connection to solar collectors (Version HP250CM2)
Thermostatic
valve
safety valve
Check valve
condensate
water
solar sensor
(heat pump)
Hot water
outlet
Cold water inlet
Stop
valve
Pressure
relief valve
Check
valve
230V
50Hz
solar sensor
(solar controller)
WARING:Plumber -Be Aware
Using solar energy,please make sure that the heat pump water tank temperature
does not exceed 85 ℃.
230V
50Hz
1/2"nipple(not supplied)
3/4" to 1/2"
reducing bush
(not supplied)
T-piece
(not supplied)
sensor pocket
(not supplied)
sensor
Installation of sensor(heat pump):
18
Installation of sensor(solar controller):
sensor(not supplied)
sensor pocket(φ6mm)
sensor pocket plug
clamp
screw
heat pump

18
f. Connection to gas boiler (Version HP250CM2)
Thermostatic
valve
safety valve
Check valve
condensate
water
Hot water
outlet
Boiler
Cold water inlet
Stop
valve
Pressure
relief valve
Check
valve
230V
50Hz
WARING:Plumber -Be Aware
Using boiler auxiliary heating, please make sure that the heat pump water tank
temperature does not exceed 85 ℃.
boiler sensor
(heat pump)
boiler sensor
(boiler controller)
1/2"nipple(not supplied)
3/4" to 1/2"
reducing bush
(not supplied)
T-piece
(not supplied)
sensor pocket
(not supplied)
sensor
Installation of sensor(heat pump):
Installation of sensor(boiler controller):
sensor(not supplied)
sensor pocket(φ6mm)
sensor pocket plug
clamp
screw
heat pump

19
g. Electrical connections precautions
WARNING
- Onlyqualified professionals may carryout electrical connections, always with the power off.
- The earthing shall comply with local standards.
- Water heaters shall be equipped with a dedicated power line and residual current circuit breakers.
The action current shall not exceed 30 mA;
- The ground line and the zero line of the power supply shall be separated entirely. Connecting the
zero line to the ground line is not allowed.
- Parameter of the power line: 3×1.5mm² or more.
Installation of Solar or boiler
sensor(From heat pump):
Installation of
Solar or boiler
sensor (From Solar controller
or Boiler controller):
1/2"nipple
(not supplied)
3/4" to 1/2"
reducing bush
(not supplied)
T-piece
(not supplied)
sensor pocket
(not supplied)
Solar or boiler sensor
(From heat pump)
Circulating
entrance
solar or boiler sensor-
from
solar or boiler
controller
(not supplied)
sensor pocket(φ6mm)
sensor pocket plug
clamp
screw

20
- If a power cable is damaged, it shall be replaced by qualified professionals to avoid risks.
- In the case of places and walls where water may be splashed to, installation height of a power
socket shall not be less than 1.8 m, and it shall be ensured that water would not be splashed on
theseplaces. The socket shall be installed out of children’s reach.
- The phase line, zero line and ground line inside a power socket used in your home shall be wired
correctly without any wrong positioning or false connection, and internal short circuit shall be
avoided. Wrong wiring may cause fire accidents.
h. Off-peak power signal wire connection(HP200M2/HP250M2)
Connection with boiler back up(only for HP250CM2)
Power cable (3*1.5mm
2
)
Off-peak power signal wire
(2*0.75mm
2
,Black wire)
16A
Auto
1
0
123kwh 1
0
16A
Boiler
Boiler signal wire
(2*0.75mm2
White wire)
Power cable (3*1.5mm2 )
Off-peak power signal wire
(2*0.75mm2 ,Black wire)
Auto
1
0
123kwh 1
0
Boiler sensor