Unit Wiring Diagram - Modine Manufacturing HD Series Installation And Service Manual

unIT WIrIng
Wiring diagram selection
Since internal or factory wiring may vary depending on
the controls manufacturer, the wiring diagrams must be
appropriately selected with the proper gas valve and ignition
figure 18.1 - unit Heater Wiring diagram (single and Two stage, direct spark Ignition)
CONTROL
18
GAS
VALVE
BL
CALL FOR FAN WH
CALL FOR HEAT
Y
LOW VOLTAGE
G
THERMOSTAT
W
(BY OTHERS)
R
PRESSURE
C
SWITCH
PIN 5
Y 1 4 7
2 5 8
Y 3 6 9
PIN 6
R
LIMIT CONTROL FLAME ROLLOUTS
LIMIT
(SEE NOTE 6)
(SEE NOTE 5)
SINGLE STAGE, DIRECT SPARK IGNITION,
SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
WHITE ROGERS
GAS VALVE
COM COM
M HI
BL
CALL FOR FAN WH
Y
1ST STAGE
2ND STAGE
G
W1
W2
LOW VOLTAGE
THERMOSTAT
C
(BY OTHERS)
R
PRESSURE
SWITCH
PIN 8
Y
1 4 7
2 5 8
3 6 9
Y
R
LIMIT CONTROL FLAME ROLLOUTS
LIMIT
(SEE NOTE 5) (SEE NOTE 6)
CONTROL
TWO STAGE, DIRECT SPARK IGNITION,
100% SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
type. The following wiring diagram represents a unit equipped
with a single or two stage gas valve and direct spark ignition.
FLAME
GND
SENSOR
SPARK
IGNITOR
IGNITION
CONTROL
O
UT
LABEL
PARK
PARK
EAC
L1
L1
IND
N
E
U
T
R
A
L
SEC
COM
R
FLAME
SENSOR
SPARK
IGNITOR
IGNITION
CONTROL
O
UT
LABEL
PARK
PARK
HEAT
L1
IND
FS
24V
COM
R
5H0799630002 REV M
6-583.6
GR, (G)
L2, (WH) 115V/60HZ/1Ø POWER
L1, (BK)
CIRCUIT BREAKER (BY OTHERS)
REFER NOTE 7
SWITCH
PE
MOTOR
FAN
MOTOR
WH
BK
120
XFMR
COM
24
R
Y
GND
115V/60HZ/1Ø POWER
L2, (WH)
CIRCUIT BREAKER (BY OTHERS)
L1, (BK)
REFER NOTE 7
SWITCH
PE
MOTOR
FAN
MOTOR
WH
BK
120
XFMR
COM
24
R
Y