Checking The Water Quality; Checking The Air Pressure Differential Switch - REMEHA Gas 210 Ace 80 Installation And User Manual

9 Maintenance
9.3.2

Checking the water quality

Fig.80 Checking the water quality
1
2
9.3.3

Checking the air pressure differential switch

Fig.81 Positive (+) side of the air pressure
differential switch
A (+)
1
6
(+)
9
X mbar
54
The requirements for the water quality can be found in our Water quality
instructions.
AD-3002453-01
5
4
8
AD-3002454-01
Caution
Not fulfilling the water quality requirements can damage the boiler
and will void the warranty.
1. Fill a clean bottle with some water from the boiler using the filling/drain
valve.
2. Check the quality of this water sample or have it checked.
1. Switch off the boiler.
2. Remove any dirt from all the connection points for hoses and the air
pressure differential switch.
3. Check the condition and tightness of the hoses of the air pressure
differential switch.
Replace the hoses if necessary.
4. Disconnect the silicon hose from the + side (A1) of the air pressure
differential switch.
5. Connect a hose to the + side of the air pressure differential switch.
6. Take a T piece and connect it as follows:
6.1. Connect one end of the T piece to the hose from the + side of
the air pressure differential switch.
6.2. Connect one end of the T piece to a large plastic syringe.
6.3. Connect the other end of the T piece to a pressure gauge.
7. Switch on the boiler.
8. Push the syringe in very slowly until error code E.04.08 appears on
the display.
9. Check the pressure indicated by the pressure gauge at that point. This
is the switch pressure.
A switch pressure between 5.5 and 6.5 mbar is good. A lower or
higher switch pressure indicates a problem with the air pressure
differential switch.
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