14
Heaters type 5-6
LF
LL
LB
RST
TR
J16
IGN2
EF
PA
EA2
SE
NA
COM
J4
J1
7
J8
NC
IGN1
EA1
ION
J11
J14
J2
J7
VM
RSTR
TA
L3
N
L1
L2
IMT
J10
J9
J12
J1
J1
3
J18
MS
J1
5
CNT
F
J6
J5
F2
F1
II°
SF
I°
RT
FAN
SND
LM
EVG2-
I°
EVG1-
I°
EVG2-II°
EVG1-II°
KEY:
SND
Temperature control probe
TR
Regulatory control thermostat(auto reset)
LM
LIMIT thermostat(manual reset)
EVG1-I°
Gas solenoid valve 1
EVG2-I°
Gas solenoid valve 2
EVG1-II°
Gas solenoid min 1. (
two stage
)
EVG2-II°
Gas solenoid min2
(two stage
)
FAN
Centrifugal
fan
F1-F2
Control
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 1
IGN2
Ignition transformer 2
EA1
Ignition electrode 1
EA2
Ignition electrode 2
ION
Ionisation
probe
SE
Control
panel
RT
Relay fan motor
CNT
Contactor fan motor
F
Line
fuses
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.
Electrical supply
threephase 400V 50Hz 3N
