Detroit Radiant Products Company DET3 Series - Manual (Page 8)

8
DET3 Series
2.0 Installation • Wiring
Before field wiring this appliance - Check existing wiring; replace if necessary.
NOTE: If any of the original wire supplied with the appliance must be replaced, it must be replaced with
wiring material having a temperature rating of at least 105° C.
Figure 2.2 • Internal Wiring Diagrams
A. DET3 Ladder Diagram
B. DET3 Block Diagram
HI
M
CC HI
M
CC
NEUTRA
L
THERMOST
AT
NEUTRA
L
VA
LV
E
GR
OUND
HIGH VOLTAGE
COM
NO NC
+
120V-24V TRANSFORMER
GAS VALVE
N.O. PRESSURE
SWITCH
120VAC
BURNER
Y
O
R
LIGHT
N
BK
BL
Y
W
W
R
BK
BK
BL
R O
G
Y
BK
BK
BK
W
BK
BK
ELECTRODE
Y
LOW
RELAY
HIGH
RELAY
COM
NO NC
NEUTRAL THERMOST
AT
NEUTRAL VA
LV
E
GR
OUND
HIGH VOLTAGE
BLOWER
MOTOR
L1 120VAC N
LIGHT
T-STAT TERMINAL
GAS VALVE
PRESSURE
SWITCH
P
M
H
ELECTRODE
ASSEMBLY
24V
120V
BK BK
R BK BK
BL
BK BK
R
W
BL
O
R
W G
Y
BL
BK
W
Y
R HIGH
RELAY
LOW
RELAY