State Water Heaters SCE 65-400, Installation, User And Service Manual

Page: 68 / 72

Appendices
68 Instruction Manual SCE
A
is
A.2 Electrical diagram SCE
A.2.1 Electrical diagram SCE 65-500 LP
TERMINAL BLOCK CONNECTIONS:
A
Earth
N Neutral
L Phase
L
1
Phase input on control program
L
2
Phase input on thermal non-return safety device
L
3
Phase input from safety circuit for temperature control release
NO Normal open
P
Supply PVC
NC Normal closed
COMPONENTS:
A Burner controller Two-terminal main switch
- N Neutral
-
A
Earth
- L' Phase input on control program
- L" Phase output
- TH Thermostats circuit phase input
- GV1 Phase output to gas control
- MAXSafety thermostat phase input
- LG Phase output to glow igniter
- I
Ionisation detection = output
- NO Normal open
- P Phase input alarm
- NC Normal closed
- F1 Fuse (T5A)
- R1 Relay max 250V-10A
B Frost thermostat
C Control thermostat
D I/0/II-switch
E Safety thermostat
F Maximum thermostat
G Gas control
H Glow igniter
J Ionisation pin
K High-low regulator
L Timer
M Storing indicator
N In operation indicator
O Reset button
OPTIONAL COMPONENTS:
P
Main control switch
Q Potentiostat (for power anodes)
R Thermal non-return safety device
S Week timer switching
Figure A.1 Electrical diagram SCE 65-500 LP
brown
blue
yellow/green
black