11
WIRING DIAGRAM
Schematic layout:
Heaters type 1-2-3
EF
SE
J4
J8
IGN1
PA
COM
COM
NA
NC
ION
EA1
J11
J1
7
J2
J1
4
VM
TA
J1
6
J13
J7
RSTR
MS
EV
G1-
I°
EV
G1
-I
I°
RST
LB
LL
LF
J10
J9
J12
SND
LM
TR
J15
J18
J1
IMT
J6
NL
F2
F1
N
J5
II°
I°
SF
FAN
C
KEY:
SND
Temperature control probe
TR
Regulatory control thermostat(auto reset)
LM
LIMIT thermostat (manual reset)
EVG1-I°
Gas solenoid valve
EVG1-II°
Gas solenoid min (
two stage
)
C
Capacitor / centrifual fan
FAN
Centrifugal
fan
F1-F2
Line
fuse
LF
Green working light
LL
High temperature indication
LB
Lockout
indication
RST
Lockout
reset
EF
Flue
venter
PA
Differential pressure switch
IGN1
Ignition
transformer
EA1
Ignition
electrode
ION
Ionisation
probe
SE
Control
board
IMT (
*
)
Fused
isolator
MS (
*
)
Fire
switch
RSTR (
*
)
Remote reset
TA (
*
)
Room
thermostat
VM (
*
)
Fan
switch
SF (
**
)
Second stage gas valve connection
(
*
)
External to heater customer supply.
(
**
)
T
wo stage only
, External wiring customer
supply.
Electri
cal suppl
y
single
pha
se
230V
50Hz
