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2.  USER SECTION

2.1.  GENERAL WARNINGS FOR USER

If there is a gas smell in the environment, firstly close the gas valves in your 
house's inlet line and your water heater, or if you use bulk gas, close the LPG 
tank valves or your tube valve. Do not switch on/off the electrical switches 
and avoid anything that may produce spark. Call the gas company or the 
Authorized Service. 

(See 1.1. General Warnings and 1.3.2. Gas Leakages)

 

Initial start-up of your water heater should be performed by Warmhaus 
Authorized Service for your safety and to maintain the warranty of your 
water heater. Our Authorized Service will inform you about how to use your 
water heater after making the first checks and operating it. 

If you will keep the water heater off for a long time, then: 

•  Take necessary precautions against freezing (it should be in an insulated 

cabinet on open balconies, its doors should not be left open, water 
connection pipes should be protected with insulation covers),

•  Close the electric fuse, gas valve, domestic water valves of the water 

heater!

•  If you are unable to take the above-mentioned insulation precautions and 

you think the water heater will be exposed to freezing, take the short-term 
shutdown precautions as follows. 

If you will keep the water heater for a short time, then:

•  Do not close the electric fuse, gas valve, domestic water valves of the 

water heater!

•  To activate the Anti-Freeze Protection Function, press the ON/OFF   

button on the control panel of the water heater and leave it in the OFF 
position,

Turn off the water heater during maintenance and repair works around the 
waste gas discharge flues. 
After the completion of the works, have the water heater checked by 
Warmhaus Authorized Service before operating it. 

Observe the following basic rules:

•  Do not clean the outer body of the water heater and do not use 
easily flammable materials while it is running.
•  Do not hold the heater with your hands or feet wet; do not hold 
it without shoes and in bare feet. 

•  Do not pull the electrical cables.
•  In case of damage to the cables, turn off the water heater and fuse 

switches and never use the water heater.

•  The electric wiring of the water heater must only be replaced by the 

Authorized Service.

2.2.  USE OF WATER HEATER 

Before using the water heater, please check the following points: 

•  The Domestic water and gas valves under the water heater are open,
•  There is gas in the gas line (you can check it by turning on one of the gas 

stoves in your kitchen),

•  The electric fuse of the water heater is on,
•  There are no easily flammable materials and products near the water 

heater,

•  The waste gas flue outlet is not blocked, 

2.2.1. Control Panel and its Functions

1

3

reset

2

6

4

5

1. 

Water Temperature Increase Button (+)

2. 

Water Temperature Decrease Button (-)

3. 

Digital Display

4. 

Service Connection Point

5. 

RESET Button

6. 

ON/OFF Button

Figure 2.1.

 

Control panel

b

a

c
d

e

f

g

h

a) Current or set water temperature 

b) Malfunction error indicator
c) Flame and modulation symbol (Burner on)
d) Device off symbol
e) RESET need symbol
f) Hot domestic water demand active symbol
g) Temperature (Degree Celsius symbol)
h) Open-therm communication active symbol

Figure 2.2.

 

Control panel display descriptions 

2.2.2. Turning On/Off of Water Heater and Temperature Setting 

In line with information here, make sure that the cold water and hot water 
valves, gas valve, and electric fuse are open. If   symbol is displayed on the 
left bottom corner of the screen, press the on/off button 

 for more 

than 1 second. The current water temperature value appears on the display. 

Figure 2.3. 

Turning on/off the water heater. 

Use the 

 and 

 buttons to set the desired water temperature 

between 35 – 60 °C. The set value flashes on the display and is stored a few 
seconds after releasing the button and the water heater will now operate 
according to this temperature setting. The current water temperature 
appears again on the display. The water heater is ready for use.  

Summary of Contents for AQUWA 12

Page 1: ...GAS FUELED HERMETIC WATER HEATER USER MANUAL AQUWA 12...

Page 2: ...AquWa 12...

Page 3: ...Risk of Getting Injured by Flue Pipes 6 2 USER SECTION 8 2 1 GENERAL WARNINGS FOR USER 8 2 2 USE OF WATER HEATER 8 2 2 1 Control Panel and its Functions 8 2 2 2 Turning On Off of Water Heater and Temp...

Page 4: ...and application for LPG use should be performed by the company supplying the tank according to the local and legal rules 1 2 GENERAL WARRANTY CONDITIONS The manufacturer company shall not have any re...

Page 5: ...us service technician at least once a year Failure to follow these instructions may result in serious possibly fatal personal injury and also property and equipment damage It is strictly forbidden to...

Page 6: ...on and Maintenance Maintenance and repairs may be carried out only by a trained and certified Warmhaus service Correct any installation errors immediately to avoid damage to the system 1 3 6 Electrica...

Page 7: ...7 warmhaus com...

Page 8: ...ls while it is running Do not hold the heater with your hands or feet wet do not hold it without shoes and in bare feet Do not pull the electrical cables In case of damage to the cables turn off the w...

Page 9: ...Their Descriptions E 06 Lockout indicator Wiring error E 08 Ignition Combustion error indicator E 07 High limit protection E 41 Loss of flame 6 times in 10 minutes E 88 Gas valve operation malfunctio...

Page 10: ...from electrode or combustion Wear or rust on the electrode Electrode position Broken wiring Electronic card 1 Reset restart the device 2 If the malfunction persists call the Authorized Service E 09 N...

Page 11: ...1 Initial combustion lockout blocking problem Device is not functioning and E81 malfunction code is flashing on the screen Excessive blockage in the flue Combustion problem Incorrect flue Gas inlet pr...

Page 12: ...umption maximum m3 h 2 43 0 959 Nozzles 85 50 NOx Grade 6 6 NOx mg kWh 37 7 26 Hot water Load profile Load Profile L Seasonal Efficiency 77 Seasonal Efficiency Class Grade A Minimum Water Flow min 3 M...

Page 13: ...13 warmhaus com...

Page 14: ......

Page 15: ...been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject...

Page 16: ...AQUWA 12 User Manual 15011606000133 Revision Number Date R00 09 2021 GAS FUELED HERMETIC WATER HEATER USER MANUAL AQUWA 12...

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