Effective: October 2018
2
06-237172-002
INSTALLATION GUIDELINES
MOUNTING AND WIRING
The 35-608 is not position sensitive and can be mounted verti-
cally or horizontally. The case may be mounted on any surface
with #6 sheet metal screws.
WIRING DIAGRAMS
Figure 1. 35-6086 5/6 Pin
CAUTION
Label all wires prior to disconnection when ser-
vicing or replacing controls. Wiring errors can
cause improper and dangerous
operation. A functional checkout of a replace-
ment control should always be performed.
WARNING
The control must be mounted and located in a
manner which protects components from expo-
sure to water (dripping, condensate, spraying,
rain). Any control that has been exposed to
water must be replaced.
WARNING
All wiring must be done in accordance with
both local and national electrical code. Wiring
must be at least #18 AWG rated for 105°C or
higher.
WARNING
The 35-608 uses voltages of shock hazard
potential. Wiring and initial operation must be
done by qualified service technician.
WARNING
Operation outside specifications could result in
failure of the Fenwal product and other equip-
ment with injury to people and property.
6-Pin Standard 35-608 Model (.156” Header)
Name
Description
Connection
MV
Main Gas Valve
Pin 1
TH
Thermostat
Pin 2
GND
Ground
Pin 3
GND
Ground
Pin 4
LAMP (NC)
Normally Closed
Pin 5
S1
Flame Sense
Pin 6
6-Pin 35-6084 Model (.156” Header)
Name
Description
Connection
NC
Alarm Lamp 24 Vac
Pin 1
Reset
Input (Special Order)
Pin 2
TH
Thermostat
Pin 3
Valve GND
Ground for Valve
Pin 4
Valve
Valve 24 Vac
Pin 5
GND
Control Ground
Pin 6
S1
Remote Flame Sense
Q.C. Terminal
.250” Wide
8-Pin CE (EN298) Special Model (35-608300-015)
(.156” Header)
Name
Description
Connection
ALARM
Lockout
Pin 1
24V
24 VAC Power
Pin 2
RESET
Manual Reset
Pin 3
TH
Thermostat
Pin 4
GND
Valve Return
Pin 5
MV
Main Gas Valve
Pin 6
GND
Ground
Pin 7
GND
Ground
Pin 8
S1
Flame Sense
Q.C. Terminal
.250” Wide
Remote Sense
BURNER
1
2
5
6
3
4
FL AM E
SENSOR
FC +
(2 CONTACTS)
FC -
H.V.
LAMP
(NC)
GND
GND
GAS
VALVE
TH
MV
24 VAC
S1
Local Sense
BURNER
1
2
5
3
4
FC +
(2 CONTACTS)
FC -
H.V.
LAMP
(NC)
GND
GND
GAS
VALVE
TH
MV
24 VAC
