4.5 Wiring diagrams
Electrical connection diagram model 67 - 77 - 87
M
L
3
1
4
6
7
9
10
12
L
F
1
3
6
4
7
9
12
10
IG: Main double-pole switch
TS: Manual-reset WATER safety thermostat
TF: Manual-reset FUME safety thermostat
TR1: BURNER 1st stage control thermostat
TR2: BURNER 2nd stage control thermostat
SL2
:
SAFETY T. alarm indicator (Red)
PLS1: TEST button
PLS2: BURNER RESET button
34
M
F
2° STD
V. GAS
22
24
12
14
21
11
TR1
TR2
TS
cod. 3541F442 - Rev. 00 - 06/2018
TA
PLS2
fig. 20 -
F: Fuse 5x20 6, 3A-T
V.GAS: GAS solenoid valve
TA: Room thermostat
CI: Heating system circulating pump
AP1: Burner control equipment
SL3: BURNER SHUTDOWN alarm indicator (Red)
Gaster N 67 -- 107 AW
1° STD
V. GAS
CI
IG
PLS1
SL2
TF
EN