broag Remeha Gas 350, Technical Information

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Remeha Gas 350
12
fig. 07 Optional basic signalling print
4A-1 4A-2
D1
K8
4A-9
D7
K9 K10
4A-8
4A-7
4 5
K10-1
6 7
K9-1
2
K8-1
3 1
K8-2
CON.4A
B
m
B
m
C
al
1
2
3
4
5
6
7
General warning
Operating signal
Operating signal
stage 2
stage 1
signal
K7 K6 K5 K4 K3 K2 K1
4A-1 4A-6 4A-5 4A-4 4A-10 4A-3 4A-2
D6 D5 D4 D3 D2 D1
K8
4A-9
D7
K9 K10
4A-8
4A-7
4 5
K10-1
6 7
K9-1
8 9
K7-1
20 21
K1-1
18 19
K2-1
16 17
K3-1
14 15
K4-1
12 13
K5-1
10 11
K6-1
2
K8-1
3 1
K8-2
CON.4A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
High limit stat
Low water level
Water level
Down draught
Valve leakage
Operating signal
Operating signal
General warning
No power supply
control
thermostat
failure
Burner
failure
stage 2
stage 1
signal
fig. 08 Optional complex signalling print
10 COMMISSIONING
NOTE:
Commissioning must only be carried out by a
qualified engineer with the relevant training and certifica-
tion i.e. Acops - Corgi and a commissioning data sheet
/ log book completed and left on site for issue to the
owner.
Important:
commissioning for propane, first see par.
8.4
10.1 Commissioning the boiler
1. Check the gas connections.
2. Check the electrical supply (L/N and earth).
Warning
: control box is phase / neutral sensitive.
3. Check the water connections and whether the instal-
lation is full and under system pressure.
4. Switch on the circulation pump and check the rota-
tion direction.
5. Open the main gas cock (purge gas pipeline).
6. Switch on the electrical supply.
7. Set both the thermostats to about 85°C.
8. If a control system is built in: put the selector switch
on manual operation.
9. Switch on the boiler.
10. After a waiting time of about 3 seconds the ignition
starts. The magnetic valve MK opens and ignition
burner lights. At a minimum ionisation current of 3
µA the safety gas valve will open. The boiler runs.
11. Let the boiler run for a couple of minutes on high fire
to clear any air still in the gas pipe.
12. Set the correct
full load burner pressure
by means
of the pressure regulator on the gas multiblock gas
valve (
see fig. 09, pos. a
).
Warning:
When the required burner pressure can
not be reached because of low inlet pressure,
ensure that the pressure regulator remains within it’s
operating range.
Now do the following:
•
Set the burner pressure to the highest possible
value (but not over the required full load burner
pressure).
•
Turn the pressure regulator anticlockwise until
the burner pressure is affected.
•
The burner pressure is now limited, this will
prevent the boiler from being over gassed
should the inlet gas pressure increase.