Roberts Gorden Low Intensity Unitary Heater Designed for Harsh Environments HE-40 - Manual (Page 53)

SECTION 10: W IRING
47
10.5 For External Thermostat Connection
Run two wires from low voltage thermostat through
conduit as shown. The purple wire from the valve and
the blue wire from the transformer have 1/4" (6 mm)
blade female electrical terminals, which are con-
nected by a black jumper wire. Cut the female connections off the ends of the blue and purple wires
and strip the ends approximately 1/2" (1.3 cm). Con-
nect these 2 wires to the thermostat wires using suit-
able wire connectors.
10.6 Electrical Connection to Burner Box with Optional External Low Voltage Thermostat
10.7 Internal Wiring
L1
L2
Gnd.
Conduit Hole
Burner Box
Internal Wire Bundle
Green to Gnd.
White to L2
Black to L1
Green White Black
Liquid Tight Flexible
Conduit for Outdoor
Use or Equivilent
Liquid Tight
Conduit Connector
Thermostat Wire
Thermostat Wire
to Purple
From External
Thermostat
Thermostat Wire to Blue
BLACK
WHITE
IGNITOR
PRESSURE SWITCH
ORANGE
SMART
VALVE
TRANSFORMER
WHITE
YELLOW
YELLOW
PLUG
GREEN
WHITE
WHITE
GREY
FLAME
SENSOR
WHITE
TERMIAL
BUSHING
green
BLACK
BLACK
BLACK
BLACK
MOTOR/BLOWER
DOOR SWITCH
GREEN
BLUE PURPLE
TO THERMOSTAT
1 5
3 4
NO COM
3
120
VAC
1