Wiring Diagram - Electronic Gas Valves; Repair Parts List - Lennox DT3025 Installation Instructions Manual

Wiring Diagram - Electronic Gas Valves

PILOT BURNER
IGNITOR-SENSOR
ASSEMBLY
PILOT
GAS
SUPPLY
ELECTRONIC
IGNITION
CONTROL
BOARD
LEGEND
W - WHITE
BK - BLACK
Note 1:
OPTIONAL FAN KITS
Fan Kit FK1 contains Fan only. (Fan Switch is field-provided)
Fan Kit FK2 contains Fan, Temp. Sensor and Fan Switch.
Note 2:
BURNER SWITCHES AND THERMOSTAT
Unit-mounted ON / OFF switch is available as a factory-installed option or can be ordered separately and field-installed.
Wall-mounted ON / OFF switch is field-provided;
Thermostat is available as a factory-provided option in vented fireplace heater model installations.
Repair Parts
The following repair parts are available through independent Lennox dealers. When ordering parts, it is important to
include the complete appliance model number listed on the Warnock Hersey rating plate.
Cabinet Parts
Heating Parts
Burner tube
Gas manifold
Gas Logs
BROWN
ORANGE
GROUND 3
2 1
L
M
E
T P
D
H V V
S
FACTORY INSTALLED
120V FIELD INSTALLED
24V (See Note 2)
FAN (See Note 1)
YELLOW
EV2
EV1
GAS VALVE
WHITE
RED
TEMP. SENSOR
(See Note 1)
BLUE
4
S
E
N
S
24V.
E
RED
BURNER ON/OFF SWITCH (UNIT-MOUNTED)
OR BURNER ON/OFF SWITCH (WALL-MOUNTED)
OR THERMOSTAT
(See Note 2)
FIGURE 38
Control Parts
Gas valve
Thermopile (Millivolt models)
Piezo push button ignitor (Millivolt models)
Low mass thermocouple (Millivolt models)
Ignitor
Pilot burner
On/Off switch
Thermostat
Transformer (Electronic ignition models)
Electronic ignition module (Electronic ignition models)
P a g e 2 5
FAN SWITCH
(See Note 1)
BK
120 VAC.
WHITE
NEUTRAL
GREEN
GROUND
BK
J-BOX
120V.
WHITE
TRANSFORMER
W
BK
BK
W
CONNECTOR