REMEHA Gas 310 ECO Technical Information page 57

b $6 Hydraulic pressure sensor open
Maximum flue gas temperature has been exceeded. The
boiler shuts down for 150 seconds, followed by a restart. If
b %@
the flue gas temperature rises 5° above the maximum flue
gas temperature, a lockout follows with code 52 (see sec-
tion 14.4).
b 61 Air pressure differential sensor not opening
If hydraulic pressure sensor has been connected (optional):
water pressure is too low. The control unit shuts down when
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the minimum water pressure is reached. The shut-off is lifted
when the water pressure returns and the control unit returns
to normal operating status.
Shut-off input is open. When the input is closed, the shut-off
b 88
is lifted.
Maximum acceptable difference between boiler shut-off
temperature and flow temperature has been exceeded. The
boiler shuts down for 10 minutes, after 5 consecutive start
b ($
attempts within one heat demand command the shut-off is
recorded in the failure register as a fault, the boiler does not
go into failure mode.
Boiler release contact is open.
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table 24 Shut-off codes
Supplied By www.heating spares.co Tel. 0161 620 6677
Remeha Gas 310 ECO
- Check the connecting cable of the
hydraulic pressure sensor
- The hydraulic pressure sensor is
defective or not connected
- The set maximum flue gas tempera-
ture
- Boiler adjustment
- Boiler for fouling.
Air pressure differential sensor not
opening Check the following:
- Is the air pressure differential switch
defective
- Has the wiring short circuited
- Check for signs of external thermal
draught in the flue gas discharge
duct.
- Refill boiler/system to the correct
pressure
- Sensor defective
- Wiring defective
- Hydraulic pressure sensor not con-
nected but has been activated.
Remove the cause of the shut-off.
- Flow
- Pumps
- Three-way valves
- Boiler release contact on butterfly
valve not made
- Boiler release contact on terminal
strip not connected (if boiler release
contact is not used)
58