BWT DWH 30A User manual

Installation and Operating Instructions
Woda Heizung
DWH 30A
Undercounter
Drinking Water Heater

Product introduction
DWH 30A Undercounter drinking water heater
Features
1 LCD display window
2 Status LED display
3 UP control button
4 DOWN control button
5 Power button
6 Heater base
Non-pressure faucet
Element connectors
Installation accessory
LCD display
Time
Hot water temperature setting
Celsius / Fahrenheit selector
Current Temperature
ECO mode on/off button
ECO mode timer setup
Malfunction detection
1
1
2
3
4
5
6
READY TIME
ON OFF
UINT
HEATING
ECO
ERROR
C
F

Internal Features
7 Fast heating tank
8 Automatic air release valve
9 Leakage Circuit Breaker
10 Flow meter
Product Applications
DWH 30A Undercounter drinking water heater
specialized for quickly heating the purified
drinking water.
The user can set up the temperature as they
desire.
Product Function
This system dispenses the water to the tem-
perature you set.
Smart heating function
Adjustable temperature setup according to
user needs
Showing Current Temperature
When the water comes out it will show the
current temperature of the water in the heater
tank.
2
7
8
9
10

The ECO Function
The user can set the ECO function to turn off
automatically each night (to reduce power
consumption when not in use) making this
system ECO friendly.
Smart Self-Check function
Automatically locates malfunction and informs
user in order to solve the problem quickly.
This equipment can automatically select the
correct voltage (110V-220V).
According to the user's preference the unit can
display in ℃or ℉.
Conditions for equipment
installation
Please refer to Installation Guide for techni-
cian menu details.
This equipment is not designed to work with
non-city provided water sources.
Before installation the pipes should to be
cleaned.
Heat resistant / non-corrosive pipe must be
used for installation.
Purification units must be installed before
entering the heating unit. Purification must be
working correctly or it can damage the heating
unit.
3
OFF
ECO
ON
ECO

Water pressure and electricity must be main-
tained at all times for correct operation of the
unit.
Location of the heating unit should have easy
access to both water and electrical supply.
Equipment can be damaged if placed in loca-
tions subject to freezing, chemicals/solvents,
high temperature or fumes.
The unit has a maximum pipe pressure limit
(please refer to technician manual). If the
pressure is too high then you need to install a
pressure reduction valve.
Water pressure required for the system
(please refer to technician manual).
Unit installation
11 Water inlet connection
12 Water outlet connection
13 Automatic air release valve
14 Leakage Circuit Breaker
15 Electric socket
4
11
13 12 14
15

Faucet installation
1 Locate proper place to drill a hole on the
sink for the faucet.
2 Put a gasket to prevent water leaking.
3 Place the ring of the faucet on the sink.
4 Place non-pressure faucet on the base.
Tightening the Faucet
1 Screw on the faucet.
2 Place the C shaped rubber sealing gasket.
3 Set in C shape washer.
4 Fix down the faucet with lock nut.
Final picture
5
1
1
4
4
3
3
2
2

Connection Method
1 Where the water comes out.
2 Connected to water inlet side of water
heater.
3 Connected to outlet side of drinking water
filter.
4 Connected to water outlet side of heater.
Please pay attention to locating automatic
air release valve outlet to drain pipe.
The faucet will drip a little after closing the
tap but this is normal because it is a non-
pressure type faucet. Do not be concerned
if this happens and continue using the
unit.
6
1
2
3
4
Filtered water in Hot water in
To water heater

7
Installation
Diagram
READY TIME
ON OFF
UINT
HEATING
ECO
ERROR
C
F
Time Setup
ECO Setup
Ststem Error(RED)
ECO Mode(BLUE)
Error Code
Time,Temp,and Setup display
Temp.Setup Heating/Ready (RED/GREEN)

Check off list
Make sure technicians install correctly
□ Make sure you remove all the parts from
the box?
□Make sure there is water purification equip
ment installed before the water enters the
heater?
□Make sure there is no problem to supply
the water and electricity?
□ Make sure you fill the heating water tank
before starting?
□ Open the water inlet valve and make sure
all the installation is correct (check water
flow direction arrow)?
□Make sure the automatic air release valve
is fixed firmly already?
□ Make sure to document the installation
and keep for future reference?
□Make sure to inform customers doing the
maintenance every six months to insure
the system runs smoothly?
Check every part and pipe for leaks.
If you don't use the system for some time
after installation you must re-check every-
thing before using.
8
You can use this list to
check your work once
again after you have
installed and started up
the unit.

Begin Operation
Please ensure the system is correctly
installed.
Fulfill the heating water tank
Open faucet
Open the water inlet valve letting the water
enter the tank (10) for about 3 minutes. (3
liters in size)
When water starts to come from the faucet
then the tank is full and the faucet can be
turned off.
Plug in the Power
The equipment will automatically select the
right voltage. (either 110V or 220V)
Turn on the Power
Press Power button
LCD screen will turn on and the system start
to heat. The user can adjust all the settings as
desired.
Attention: If you want to get hot water right
away still allow 15 minutes for the first tank of
water to heat.
9

System Settings
Setting the Time
Press and hold the UP and DOWN
control buttons at the same time for 3 sec-
onds.
* The TIME will start to flash
Press UP or DOWN control button to
adjust the "Hour"
Press the Power button to confirm the
"Hour"
Press UP or DOWN control button to
adjust the "Minutes"
Press the Power button to confirm the
"Minutes"
10
TIME
TIME

Setting water temperature and Unit
Press and hold UP control button for 3
seconds to set the temp. and unit.
* The temp. digit will start to flash
Press UP or DOWN control button to set
the temperature
Press Power button to set the temperature
Unit.
* The UNIT will start to blink
Press Up or Down button to change the
temperature unit. Select the unit ℃or ℉
Press Power button to confirm Unit
11
℃
UINT
℉

Setting ECO mode
Press and hold Down control button for 3
seconds to enter ECO mode.
* ECO will start to blink
ECO mode: the time system starts to function
* ON starts to blink
Press Up or Down control button to set
the time you want the system to start
Press Power button to confirm the start
time
"ON" will stop blinking
"OFF" will start to blink
ECO mode: the time system stops to function
* OFF starts to blink
Press Up or Down control button to set
the time you want the system to stop
Press Power button to confirm the stop
time
"OFF" will stop blinking
12
℃
ECO
ON
OFF
ECO

ECO mode turns ON/OFF setting
Press Up or Down control button to turn
ON/OFF ECO mode
Press Power button to confirm ECO mode
status.
Maintenance
Please contact the original company to
change the water filter regularly to ensure high
quality hot water.
If the machine is not in use for some time the
water should be emptied by opening the
faucet for 3 minutes to remove stagnant water
When the system shows "Error" refer to the
Error chart for the problem and follow the
instructions. Unplug immediately or call the
technician as necessary.
13
OFF
ECO
ERROR

14
Error Code Table
Code Error Reasoning Troubleshooting methods
Please contact our service department and quote
the error code
Please discover the reason for water blockage.
After so, the machine will return to normal usage
No inlet water
Leakage
Nominal inlet connection width Inch 1/4”
Nominal pressure (PN) bar 7
Operating pressure prespressure bar 0.7 – 3.0
Heating tank Capacity L 3
Power supply V/Hz 110 – 230 / 50 - 60
Power consumption Watts 700
Temperature setting range ℃70 – 100
Dimension（Height H× Width B）mm 316 × 190
Depth（T1 / T2）mm 312 / 358
Height of the air release valve connection mm 291
Height of inlet water connection mm 280
Nominal outlet connection width Inch 1/4”
Weight kg
Product No. PNR
DWH Unit 30 A
Temperature sensor error
Heating component error
01
02
03
04
Product Specification
H
B
A
S
T1T2