
1 2
Make 2 holes Φ 12mm, 65mm deep in wall with an 
impact drill according to the drawing of the external 
dimensions (See Figure 4).
Take out all accessories in packaging liner, unpack 
one hook, sleeve the ring end of the connection lines 
among the accessories into the hook tightening end 
and assemble the hook well.
right hole). 
Lift the water heater and hang it with wall rack corresponding to the two hooks. Insert the 
connection spacer led from the rear shell wall rack of the heater into the connection terminal 
of the line on the hook (See Figure 2).
appropriate locations on inlet and outlet pipes respectively. Find the location requiring hot 
water supply. Connect inlet pipe, outlet pipe and city water pipe respectively to the use point 
for hot water. Fill the tank with water to check whether there is any leakage. It must be reconnected if there are signs of water leakage.
Warning: Do not release your grip unless the wall rack is securely hung on the hook. 
Otherwise the heater may fall and cause personal injury or property damage.
Connect the safety valve to the water inlet by following the direction of its arrow (the arrow 
should point towards the heater). The safety valve’s rated pressure is 0.80MPa and its connection 
is G1/2. Once power is connected and the water is being heated, the water inside the water 
tank will expand. In order to relieve the water pressure inside, a very 
safety valve. The pressure-relief vent must be free of any blockages. 
Please connect the drain hose to the safety valve. Connect one end 
of the hose to the safety valve vent and the other end to the sewage 
drain. The hose can be cut short or extended as necessary. The hose 
shall be installed as inclined downward.
ES15V-P2 
ES25V-P2 
ES35V-P2
Spa Water Heater
User's Manual
SPEED
SET
TIMER
0040502425
V
SPEED
SET
TIMER
Please read this manual before usage.
Retain it for future reference.
Safety warning (Read carefully before use)
Installation • Use
Installation must be made by installers of or designated by our company after-service department. 
The water heater shall be wall-mounted.
Installation
Installing safety valve
FAQ
Phenomenon Remedy
No water
No water supply or water pressure 
is too low
Check
Water use point is blocked or hot 
water valve is closed
Check and clear
Cold outlet water
1
 Hot water access close Check and open
2
 Temperature not set to desired 
setting
Calibrate the heater according to the 
operation instructions in the manual
3
Heating time limit and setting 
temperature not obtain
Calibrate the heater by referring to 
the operation instructions in the 
manual
4
 Defective elements
Contact with service department 
when 1 , 2 and 3 are excluded.
Not heated to 
desired temperature 
water
1
 Whether the current function 
is set to the proper mode and 
temperature is set too low.
Calibrate the heater according to the 
operation instructions in the manual
2
 Excessive water pressure
turned down
temperature of water
Inconstant water pressure
turned down or use with constant 
water pressure
Incapable of startup 
or display not lit
1
 No power to heater Check power socket
2
 Defective elements
Contact with service department 
when 1 is excluded.
Display E1 Faulty line Contact with service department
Display E2
1
Power on after disconnection when 
2
 Defective elements
Contact with service department 
when 1 is excluded.
Display E3
1
 Room temperature lower than 
-20°C
when ambient temperature more 
than -19°C
2
 Defective sensor
Contact with service department 
when 1 is excluded.
Meanings of icons
These are 
actions which 
are forbidden
These are actions 
which must be 
carried out
These are matters 
for which attention 
is required
If the water heater emits an unusual 
smell or a burning smell, please 
disconnect the power supply 
immediately and call the service center.
This mark is the designation 
for Pre-safe Expert of Haier 
Water Heater Company, 
which indicates the use of 
the company's patented 
technology inside the product. It ensures 
you a safe bath while monitoring whether 
your house ground wire is live or not all 
the time. If this mark is lit, it indicates your 
house ground wire was come live (poor 
grounding and live). In this case, please 
immediately stop use and disconnect 
the power, and remember no
t to touch 
any electric applicance in your house. 
At the same time, immediately contact 
after-sales service and your property 
management company for professional 
Non-professional maintenance 
personnel shall not carry out 
unauthorized repair, maintenance, 
dismantling or re-construction of 
the heater.
Be sure to use independent socket 
and earth it reliably.
In case the power cord of the 
water heater is damaged, be sure 
to have it replaced by after service 
technicians with special cord 
If you do not need to use the heater 
for a prolonged period, please cut 
in the heater in accordance with 
the instructions in the chapter on 
cleaning and maintenance.
Take care not to be scalded by hot water.
•
Do not touch the valve and pipe for hot 
water supply.
•
Please feel the water temperature before 
use. Use only when the temperature is 
ideal for you.
Do not set at outdoor places.
Do not install the water heater in the 
conditions in which ice could form. 
Ice formation will cause the water 
container and piping to crack, leading 
to scalds and water leakage.
Do not connect or disconnect the power 
supply while your hands are wet.
Check if the ammeter and the 
diameter of the wires are in 
accordance with the rated current 
of the water heater. If necessary, 
please have it checked by an 
experienced electrician.
Do not drink hot water from the 
heater or use it for similar purposes.
Do not spray water or steam onto 
the heater.
Please take precautionary measures 
during cold 
weather so as to prevent 
the heater from being frozen.
reliable wall.
Do not install at places without sewage.
(Figure 1) for installation 
reference only.
Hot water 
outlet
Safety valve
Cold water 
inlet
Shower 
head
Cold 
water 
outlet 
valve
Mixing 
Valve
Hot 
water 
outlet 
valve
SPEED
SET
TIMER
(Figure 1) for installation 
reference only.
Cold  
water  
outlet  
valve
Mixing 
Valve
Hot  
water  
outlet 
valve
(Figure 2)
Extended connection line
Wall rack
Expansion
hook
Connect to drain hose
(Figure 3)

5 6
3 4
During installation, adequate space must be reserved for future maintenance and repair (at least 300 mm). 
If the water heater is installed within decoration boards, the right board shall be removable to facilitate 
removing the plastic cover during maintenance. 
Tap water inlet pressure shall be no less than 0.05MPa and the maximum pressure shall not exceed 0.75MPa. 
Electric water heater shall be installed indoors with ambient temperature above 0°C. The pipes shall be 
collectively laid. Hot water outlet shall not be too far from use points. In case farer than 8 m, hot water pipe 
shall have a thermal insulation to minimiz
e heat loss.
load bearing walls or air brick walls must have corresponding protective measures like additional support, 
wall-through screws or back boards. 
tank or pipes leak, nearby or lower facilities shall not be damaged. The installation location shall avoid being 
above toilet bowl, bathtub, washbasin or doorframe, where will cause a suppressed or unsafe feeling to users.
Do not confuse inlet and outlet water pipes. Safety valve shall be installed at designated position with no 
Use a test pencil to check whether the live line and null line are wrongly connected. Power may only be 
connections. The power supply should also conform to the heater’s requirements. 
To avoid danger caused by accidental reset of heating breaker, the power for the heater cannot be supplied by 
timer and other external switch devices or connected to circuit with frequent switching for facility use. 
In order to avoid unforeseen accidents, only install components Haier-provided . Do not switch or exchange parts yourself. 
If components are damaged, you must contact the company’s repair center and use the parts supplied by Haier. If to the 
user fails to follow the requirement above, Haier will not be responsible for
 any direct or indirect damages caused hereof.
Installation warning
Introduction of control panel
Installation of remote control unit holder
Remote control unit panel
Cleaning and maintenance
Real-time Heating Mode 
C urr ent Temp .
He at ing Te mp.
No rma l F as t T urb o
S P E E D
S E T
TI ME R
kW
On 
1
2
3
4
5 
6
7
8
9
0 
A
1
Actual temperature
2
Set temperature
3
Power
4
Current time
5
Current time/ 
temperature increase 
key
6
Power selection key
7
Time setting key
8
Heating Temp. icon Blinking, 
indicates heating is in process; 
temperature is maintained at 
set temperature once it stops 
blinking.
9
Preset stop-heating)
0
Preset bath, preset 
stop-heating
setting key
A
is water leakage at the respective joints before connecting power. Once power is connected, the panel will show full 
display for 1 second, accompanied by a buzzer sound. The heater will then enter into shutdown state as before.
Press  key to switch on the heater 
Press
key for the heater to interchange between standby state (with clock display only) and working state. 
Press +, – keys to set the temperature to (35~75°C) 
The Heating Temp. value icon on the control panel will blink and changes correspondingly. Once 
the desired value is reached press SET
Press SPEED key repeatedly to select the heating power 
This product provides three power settings for your selection. Low (1kW), Medium (2kW), High (3kW).
Press SET key to calibrate the clock. 
Press the SET
+, –
 to set the hour; Press the SET key again, 
+, –
 to set the minute; After setting, press SET
the value blinks for 6 seconds without any further operation, the system will automatically enter next 
Under real-time heating mode, the heater will automatically heat the water or maintain the 
temperature near the set value. (If the set temperature is lower than 55°C, the heater will heat again 
once the temperature is lower than the set value by 5°C; If the set temperature is between 55°C and 
75°C, the heater will heat again once the temperature is lower than the set value by 10°C.)
This product is equipped with preset bath function. Activate the preset bath function to set the preset 
bath time, power and temperature. If no operation is carried out for 2 minutes 
after that, the heater will 
enter into power saving mode (display on and current time only). It will also calculate the heating time, 
and heat the water to the preset temperature automatically before the preset time.
Carry out Steps 1~4 of the real-time heating mode 
Press the TIMER key, the preset bath icon on displays. 
Press SET key to set the preset time 
Press the SET
+, –
 to set the hour; Press the SET key again, 
+, –
 to set the minute; After setting, press SET
the value blinks for 6 seconds without any further operation, the system will automatically enter next 
Note: If the actual temperature doesn't reach the set temperature at the preset time, the heater will extend 
the heating time by 30 minutes automatically. After 30 minutes the heater will stop heating no mater 
the temperature reaches to the set temperature or not. 
If by the preset time the actual temperature is that of the set temperature, but the actual temperature 
drops by 5
°C
 by the preset time, the heater will re-heat the water. Once the preset time is reached, it 
will stop heating whether or not the water reaches the set temperature.
Use the correct screws in the accessories to secure the remote control unit 
holder onto a suitable position on the wall; and insert the remote control 
unit into the holder (see illustration below).
 Used to adjust the temperature value
Explanation: The use of the buttons on the remote control unit is the same as that for the 
buttons on the control panel.
Note: When using the remote control unit it is best to use it at close distance and at a 
perpendicular angle. When the battery in the remote control unit is completely 
exhausted, please remove the cover on its back using a coin to turn the knob in the 
direction as indicated, then remove the button battery inside and replace it with 
prevent explosion. They should be disposed of in accordance with regulations.
Warning
:
maintenance may cause severe injury or damage. 
Disconnect power supply before cleaning. Gently wipe with wet cloth dipped with a little of 
mild detergent. Do not use gasoline or other solvents. Finally dry with dry cloth. Keep water 
heater dry. Do not use cleansers containing grinding agent (e.g. toothpaste), acids, chemical 
elements and tank liner of water heater shall be cleaned once in three years. Take care not 
to damage protection layer on heating elements and tank liner inner surface. According to 
maintenance is needed, please contact local service station.
Friendly reminder: 
1. In long-term out-of-use or maintenance of the heater, you can close the city water pipe 
valve and set the mixing valve to the highest water temperature rate after opening the 
safety valve handle. Move up the safety valve handle to drain the tank.
switching on the water heater, exhausting gas possibly retained in the pipeline. In this case, 
in good condition.
1
2
2
1
4
3
Preset Stop-heating Mode
This product is also equipped with preset stop-heating mode, i.e. the heater will automatically stop-heating  
at the appointed time.
Carry out Steps 1~4 of the real-time heating mode 
Press the TIMER key repeatedly, the preset stop-heating icon 
 displays
Press the SET key to set the preset stop-heating time
Press the SET key, how-to is the same as mode 3 of preset bath 
Preset bath and preset stop-heating can be set simultaneously. Once the settings are activated, water heater will 
automatically start heating the water to reach the preset temperature before the preset On time based on the current 
time and preset time. In the time between On and O, water heater is on real-time heating mode (once the water 
 temperature drops 5 degree than the preset temperature, heating will be started again). The water heater will automatically 
stop heating when reaches the O time. 
 Note: If the O time is within the execution time of preset bath, then the Water heater will rst stop heating for 1min, then 
continue the heating till ON time.
2
1
3
3
Item Unit ES15V-P2 ES25V-P2 ES35V-P2
 Rated voltage V  230 230 230
Rated frequency Hz 50 50 50
Rated pressure MPa 0.80 0.80 0.80
Power W 1000/2000/3000 1000/2000/3000 1000/2000/3000
Net weight kg 10 14 17
Rated temperature
o
C 75 75 75
Volume L 15 25 35
Technical data · Packing list
Parameters
Remarks: 1. The permitted error limit of net weight above is ±10%. 
2.
 The values for mixing factor, average temperature of hot water outlet, re-heating time 
(a temperature rise of 50°C) are all measured under the maximum power condition. 
Front 
view
Side 
view
Cutaway 
view
Rear 
view
b
 a
C
d
e
SPEED
SET
TIMER
Dimensions
Model a b c d e 
ES15V-P2 316mm 291mm 623mm 152mm 100mm 
ES25V-P2 378mm 362mm 616mm 152mm 100mm 
ES35V-P2 415mm 398mm 663mm 152mm 100mm
A Hot water outlet  B Cold water inlet  C Tank  D Heating element  E Anode rod 
 F Thermometer tube  G Wall-mounting bracket 
Remarks: The permitted error limit of above parameters is 
±
10%. 
Packing list
Electric 
water 
heater (Set)
Safety valve 
Drain hose 
(Unit)
Expansion 
hook 
(PCS)
User's 
manual 
(Copy)
Connecting 
line (PCS)
Remote control, 
Remote control 
unit holder (Set)
Accessories 
pack (Unit)
ES15V-P2 1 1 2 1 1 1 1
ES25V-P2 1 1 2 1 1 1 1
ES35V-P2 1 1 2 1 1 1 1
  Name 
Quantity
Model
(Figure 4)
Item Unit ES15V-P2 ES25V-P2 ES35V-P2
Waterproof grade / IPX4 IPX4 IPX4
Mixing factor % 13 5 4
Tap water pressure MPa
No less than 
0.05MPa
No less than 
0.05MPa
No less than 
0.05MPa 
Average temperature of hot 
water outlet
o
C 64 68 64
Re-heating time 
(a temperature rise of 50
o
C)
min 14 21 41
Diameter of power wire mm
2
3×1.5 3×1.5 3×1.5