Check The Air Pressure Differential Switch Ps - REMEHA Gas 310 ECO PRO-285 Installation, User And Service Manual

Gas 310 ECO PRO - Gas 610 ECO PRO
1
3
6
5
(+)
X mbar 8
3
SLOW
(+)
X mbar 5
160514 - 125467-05
(-)
P
2
4
2
(+)
P
1
7
SLOW
5.5 mbar....6,5
T005045-C
1
(+)
P
1
(-)
P
2
2
4
-5.5 mbar....-6,5
T005046-A
7.2.10. Check the air pressure differential switch
PS
Check the air pressure differential switch +
1. Switch the boiler off.
2. Disconnect the silicon hose on the + side (P1) of the air pressure
differential switch.
3. Take a large plastic syringe and connect a T piece with a hose
connected to the mouth.
4. Connect the + side of the air pressure differential switch to one
end of the T piece with a hose.
5. On the other end of the T piece, connect the + side of a pressure
gauge.
6. Switch on the boiler.
7. Push the syringe in very slowly until the boiler goes into failure
mode; Code e12 .
8. Make a note of the pressure indicated by the pressure gauge at
that point. A switch pressure of between 5.5 mbar and 6.5 mbar is
fine. A lower or higher switch pressure indicates a problem with
the air pressure differential switch.
Check the air pressure differential switch -
1. Fasten the silicon hose on the + side (P1) of the air pressure
differential switch.
2. Disconnect the silicon hose on the - side (P2) of the air pressure
differential switch.
3. Connect the - side of the air pressure differential switch to one end
of the T piece with a hose.
4. Pull out the syringe until the boiler goes into failure mode; Code
e12 .
5. Make a note of the pressure indicated by the pressure gauge at
that point. A switch pressure of between - 5.5 mbar and - 6.5
mbar is fine. A lower or higher switch pressure indicates a problem
with the air pressure differential switch.
6. Remove any pollution from the connection points of hoses on the
air pressure differential switch.
7. Check the condition and tightness of the hoses of the air pressure
differential switch. Replace the hoses if necessary.
7. Checking and maintenance
63