Detroit Radiant Products Company QTS Series - Manual (Page 32)

QTS Series
32
3.0 Installation • Electrical Requirements • Internal Wiring Diagrams
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 3.23 • Internal Block Wiring Diagram
1
2
3
4
V1
V2
NC
W (24V IN)
S1
S2
(24V IN) R
GND
GND
CIRCUIT BOARD
DIAGNOSTIC
LIGHT
BLOWER
MOTOR
O O
PR
PR
O
BL
FLAME SENSOR &
SPARK IGNITOR
FLAME SENSOR &
SPARK IGNITOR
LINE VOLTAGE
120VAC 60Hz
NEUTRAL
PRESSURE
SWITCH
120V/24V
TRANSFORMER
POST-PURGE
TIMER
FAN
RELAY
DUAL POLE
RELAY
BL
BK BK
BK
W
O
Y
O
BL
Y
BL
O
Y
GY
BL
BL
BK
W
BK
G
Y
Y
DPDT SWITCH
(24V I/O)
24VAC
CONTROL WIRES
GAS
VALVE
BK
SINGLE-STAGE
GAS VALVE
13
11
12 25
24
26