ermaf GP 95 ACU Instrucciones De Utilizacion página 44

Checking the safety functions and
burner operation
WARNING
If these checks are not carried out, the gas valves
might remain open allowing non-combusted gas
to escape. Risk of explosion!
OFF 1
2
AUTO
3
Safety functions
4
5
+ AUT O
1 Switch off the heater during operation. Press
ON/OFF MODE
(RESET)
ON/OFF .
▷ The flame goes out < 1 s.
▷ The fan cools the heater down until it reaches
switch-off temperature.
2 Remove the valve plug on the combination con-
trol during operation.
▷ The gas valves close < 1 s.
▷ The flame goes out.
▷ The burner control unit ACU displays the warn-
ing message "The flame has gone out during
operation". Error code F. and 2 flash alternately.
▷ If a restart has been programmed, the burner
control unit will initially attempt to restart and
will then perform a fault lock-out. Error code F.
and 1 flash and indicate the fault message "No
flame has been detected during the safety time".
3 Shut off the inlet pressure during operation.
▷ The pressure switch in the combination control
switches because the supply pressure is too low.
▷ The burner control unit performs a safety shut-
down: the gas valves are disconnected from the
electrical power supply.
▷ The flame goes out.
▷ The burner control unit ACU displays the fault
message "Supply pressure too low". Error code
P. and 1 flash alternately and the light is red.
▷ If the burner control unit responds in a different
way to that described, a fault has occurred, see
page 12 (Assistance in the event of malfunc-
tion).
CAUTION
The fault must be remedied before the system may
be operated.
Checking burner operation
AUTO
1 Switch on the ACU.
2 Select operating mode 2
3 Allow the burner to burn for 15 minutes.
4 During this time, monitor the flame pattern.
▷ The flame must be blue.
+ AUT
▷ No dirt particles must come out of the heater.
ON/OFF
GP_95_ACU_NF.indd 20
OFF 1
2
3
Heating.
4
5
O
MODE
(RESET)
GB-20
Accessories
Room thermostat
Use a room thermostat with a hysteresis of ± 1°C,
230 V, Type TH 215.
1 5
1 0
5
0
°C
Order No.: N50260145
Pressure reducer
Pressure reducer for LPG.
RECA 1.5 bar to 50 mbar, 2 x ½" internal thread
connection, 10 kg/h, Order No.: N52600023.
Manual valve
2 x ½" internal thread connection,
Order No.: N52600019.
½" internal and external thread connection,
Order No.: N52600027.
2 0
2 5
3 0
3 5
13.09.20 22:53