Westinghouse HT382E120 User manual

INSTRUCTION MANUAL
HT382E120
ELECTRIC WATER HEATER
Note : Read and understand this manual before use.
Keep this manual for future reference.
30~52°C
TEMPERATURE
18Kw
POWER
VOLTAJE
FREQUENCY
240 V
60 Hz
3.2
L/Min
MINIMUN
WATER FLOWV

2
CONTENTS
Important Safety Instructions -------------------------------------------------------------------------------- page 2
Electrical Diagram------------------------------------------------------------------------------------------------ page 3
Technical Data and Product Structure----------------------------------------------------------------------page 4
Installation Guideline---------------------------------------------------------------------------------------------page 6
Operation Instructions ------------------------------------------------------------------------------------------page 10
Trouble-shooting---------------------------------------------------------------------------------------------------page 11
Normal Maintenance----------------------------------------------------------------------------------------------page 12

3
WARNING
This is not a do-it-yourself project. Failure to have this appliance installed by a licensed plumber and
electrician will void all warranties.
Under no circumstances should you attempt to install, repair or disassemble the JNOD tankless electric
water heater without first shutting off all power to the unit directly at the circuit breaker box.
Installation of this product is restricted to indoor locations only by licensed plumbing or electrical
contractors.
Important Safety Instructions
1. The installation must be in compliance with the National Electrical Code, your local electrical and
plumbing codes.
2. This appliance must be EARTHED.
3. All wiring and installation must be supervised by a qualified electrician.
4. CAUTION: This product has more than one power-supply connection point. Disconnect all power supplies
before servicing.
5. This appliance is not intended for use by persons (include children) with reduced physical sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do
not play with the appliance.
6. This appliance MUST be permanently connected to the fixed circuit breaker and it must be installed vertically. DO
NOT install this appliance near to tinder or strong magnetic field place.
7. This appliance is forbidden to be switch on if you think it may be frozen, as this could result in serious damage to
the unit. Wait until you are sure that it has completely thawed out before you switch it on.
8. Please feel the outlet hot water temperature with hand to make sure it is suitable for showering before taking
shower to avoid getting scalded.
9. Before connecting pipesto the water heater hoses, it is extremely important to FLUSH the pipes to wash away all
plumbing paste or residue in the pipes.
10. The heating chamber istreated with composite nano insulation material; it is natural if there might be a bit of
smell or green blue smoke when the unit is used for the first time.
11. Ifthere is damage to the wire, you must contact qualified electrician to replace it with dedicated wire from our
authorized dealers.
12. CAUTION: FOR HOUSEHOLD AND INDOOR USE ONLY
13. Risk of electric shock ,CONNECT ONLY TO A CIRCUIT THAT IS PROTECTED BY A GROUND-
FAULT CIRCUITINTERRUPTER(GFCI).
14.Save this instruction.

4
Product Features
The JNOD tankless electric water heaters are incorporated with China national patent technology
multi-safety devices. Besides, the unit has the following features.
1. Tankless, instantaneous heating for on demand hot water, No pre-heating. No stand-by heating loss.
energy-saving.
2. Micro-computer control, Adopting patent heating technology. Water is completely separated from
electricity by multi-layers of composite nano insulation material.
3. Overtemperature protection: when the outlet water temp. reaches over 153℉/67, the electricity will be
cut off to avoid getting scalded and the screen displays E1. the appliance will start to work automatically
while temp. drop to the set temperature.
4. Malfunction of sensor- when there is malfunction with the temperature sensor, the heater stops working
and displays E3
Electrical Diagram
MODEL 625HT382E75
MODEL 625HT382E120
L1
L1'
T1
T2
R1
R2
L2
E
THERMAL CUT-OUT 90 ℃
CONTROL
SYSTEM
DISPLAY
SCREEN INLET TEMP.SENSOR
FLOWMETER
OUTLET TEMP.SENSOR
REMARK: J:RELAY R:HEATING SYSTEM T:TRIAC
L2'
L1
T1
T2
R1
R2
L2
E
THERMAL CUT-OUT 95 ℃
CONTROL
SYSTEM
DISPLAY
SCREEN INLET TEMP.SENSOR
FLOWMETER
OUTLET TEMP.SENSOR
REMARK: J:RELAY R:HEATING SYSTEM T:TRIAC

5
AC 240V/60Hz
■Technical Data
Model 625HT382E75 625HT382E120
Phase 1 1
Voltage V 240 240
Wattage kW 11 18
Max. Amp. load A50 75
Min. required circuit breaker
A 60 2x50
Min. wire size AWG cooper 6 2 X 8
Min. water flow to activate
GPM /L/min. 0.53/ 2 0.85 / 3.2
Weight kg 3.6 5.3
Product Dimensions mm 385x260x93 385x260x93
Water connections NPT 1/2”3/4”

6
Product Inner Structure
MODEL 625HT382E75
MODEL 625HT382E120
260mm
285mm
E L1 L2
Display screen
Display screen
UP ON/OFF
DOWN
E L1 L2 L1 L2
bottom case
control board
Display screen
Terminal blocks
flowmeter
Temp.sensor
heating chamber
Display screen
UP ON/OFF
DOWN
260mm
285mm

7
Installation Guideline
The installation must be in compliance with the National Electrical Code, your local electrical and plumbing
codes.
1. Make sure the appliance is intact, and the fittings are complete.
2. Please make sure the main power supply, water pressure, grounding condition, ammeter and wire reach the
standard of installation requirement.
3. The appliance must be connected to properly grounded dedicated branch circuits of proper voltage rating.
Ground must be brought to the “ground”at the circuit breaker panel.
4. This appliance MUST be permanently connected to the fixed circuit breaker. If you don’t use the heater, please
switch off the circuit breaker.
5. DO NOT install this appliance near to tinder or strong magnetic field place. The unit must only be mounted in a
VERTICAL position near by the water fittings.

8
Installation Method
Fixed installation on the wall
Locate an appropriate place on a section of wall as above mentioned.
Fig 1 Front and back of the appliance
Fig 2 Remove screw which fixed the bracket on back of the appliance.
Fig 3 Remove the bracket from the appliance

9
Fig 4 Hold the back bracket hanger in position against the wall and mark the three mounting holes. Drill
three holes of 6.00mm diameter, the distance between every two holes is 100mm. (Put plastic anchor inthe hole, fix
the bracket on the wall. and secure the hanger using the screws supplied or an appropriate alternative method)
.
Fig 5 Uninstall screws on appliance to remove the front cover, Pls use hand to pull out the screen row
line plug carefully before removing the front cover.

10
Fig 6 Fix the appliance to the bracket which was nailed to the wall, Make sure the unit bracket onto the
back metal hanger correctly
Fig 7 Connect the cable to the terminal blocks, please notice the guidance logo below the terminal
blocks. XFJ120FDCH will be connected to one circuit breaker, 625HT382E75, XFJ180FDCH, will be connected to
two circuit breakers
Fig 8 Fix the front cover on appliance, before that, please plug in the screen row line plug. Then nail the
screws to fix the front cover.
E L1 L2 L1 L2 L1 L2
E L1 L2 L1 L2 L1 L2