Operating the appliance
5
Gaz 6000 W – 6720866248 (2019/07)
3.2 Checking the operating pressure of the heating system
The operating pressure is generally 1 to 2 bar. For the optimum
operating pressure for your heating system, refer to your contractor.
▶ Read the operating pressure from the pressure gauge.
▶ If the pressure is too low, top up the heating water.
Fig. 3 Pressure gauge for checking the operating pressure
3.3 Topping up heating water
NOTICE:
Damage to appliance due to cold water!
Stress cracks can occur on the hot heat exchanger when the heating
water is topped up.
▶ Only top up with heating water when the appliance is in a cold state.
The filling facility is located at the bottom of the appliance between the
connection for the heating flow and the DHW connection.
The maximum pressure of 3 bar may not be exceeded even at the
maximum heating water temperature. If the maximum operating
pressure is exceeded, the pressure relief valve opens until the operating
pressure is within the normal range.
Fig. 4
▶ Open the filling valve and fill the heating system until a pressure
between 1 and 2 bar is indicated on the pressure gauge.
▶ Close the filling valve.
4 Operating the appliance
These operating instructions describe the operation of the heating
appliance. Depending on the user interface that is used, the operation of
several functions may be different from this description. Therefore
please also observe the operating instructions for the user interface.
The following user interfaces can be used:
• User interface fitted externally, for weather-compensated control
• User interface for room temperature-dependent control
▶ Set the user interface in accordance with the appropriate operating
instructions.
Fig. 5 User interface (example showing)
4.1 Control panel overview
Fig. 6 Display readings
[1] K key
[2] Burner operation
[3] Error display
[4] Heating mode
[5] DHW heating
[6] Service mode
[7] Temperature display (in °C)
[8] – key
[9] Press
[10] + key
[11] Press (reset)
4.2 Switching on the device
▶ Switch on the device with the K key.
The display shows the heating water flow temperature.
0 010 005 717-001
2
31
4
bar
0
0 010 005 718-001
0 010 002 699-002
0 010 011 141-001
1
11
9
8
43
2
5 6 7
10
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