Use and Care Manual

18
6-583.4
UNIT WIRING
Figure 18.1 - Unit Heater Wiring Diagram (Single and Two Stage, Direct Spark Ignition)
1 4 7
852
3 6 9
G
W1
C
R
Y
GND
O
WH
COM
L1, (BK)
R
Y
120
R
COM
24
R
FA N
MOTOR
Y
WH
BK
24V
PIN 8
Y
XFMR
PRESSURE
SWITCH
PE
MOTOR
CALL FOR FAN
LIMIT
CONTROL
COM
115V/60HZ/1Ø POWER
CIRCUIT BREAKER (BY OTHERS)
FLAME
SENSOR
BL
BK
L2, (WH)
L2, (WH)
FS
L1
HEAT
PARK
SPARK
IGNITOR
UT
LABEL
IGNITION
CONTROL
PARK
FLAME ROLLOUTS
(SEE NOTE 6)
IND
WHITE ROGERS
GAS VALVE
COM
HIM
W2
LOW VOLTAGE
THERMOSTAT
(BY OTHERS)
1ST STAGE
2ND STAGE
COM
HONEYWELL
GAS VALVE
HI
LO
LIMIT CONTROL
(SEE NOTE 5)
L1, (BK)
SWITCH
REFER NOTE 7
5H079963B2 REV L
TWO STAGE, DIRECT SPARK IGNITION,
100% SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
1 4 7
852
3 6 9
G
W
R
C
Y
GND
O
WH
COM
L1, (BK)
R
Y
PIN 6
120
R
COM
24
R
FA N
MOTOR
Y
WH
BK
SEC
PIN 5
Y
XFMR
PRESSURE
SWITCH
PE
MOTOR
LOW VOLTAGE
THERMOSTAT
(BY OTHERS)
LIMIT
CONTROL
GAS
VA LV E
115V/60HZ/1Ø POWER
CIRCUIT BREAKER (BY OTHERS)
FLAME
SENSOR
BL
GR, (G)
BK
L2, (WH)
L2, (WH)
IND
L1
L1
EAC
PARK
HONEYWELL
LABEL
SPARK
IGNITOR
UT
LABEL
IGNITION
CONTROL
COM
24VAC
N
E
U
T
R
A
L
N
E
U
T
R
A
L
IND
XFMR
L1
EAC/BLO
M1
PARKCOOL
LIMIT CONTROL
(SEE NOTE 5)
L1, (BK)
SWITCH
REFER NOTE 7
FLAME ROLLOUTS
(SEE NOTE 6)
5H079963B1 REV L
TWO STAGE, DIRECT SPARK IGNITION,
100% SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
WIRING LEGEND
FACTORY WIRING
INTERNAL COMPONENT WIRING
FIELD WIRING
WIRE NUT
TERMINAL BOARD CONNECTION
LINE 24V
NOTES TO INSTALLER:
1. ALL WIRING MUST COMPLY WITH NATIONAL
ELECTRIC CODE AND ALL LOCAL CODES.
2. ALL COMPONENTS MUST AGREE WITH
THEIR RESPECTIVE POWER SOURCE.
3. VERIFY THE POWER SOURCE AND
THE UNIT POLARITY.
4. USE TYPE 105°C REPLACEMENT WIRE
300V OR GREATER.
CAUTION:
FAILURE TO WIRE THIS UNIT ACCORDING
TO THIS WIRING DIAGRAM MAY RESULT
IN INJURY TO THE INSTALLER OR USER.
FOR DEVIATIONS CONTACT THE FACTORY.
MOTOR LEAD COLOR FOR DIRECT
DRIVE BLOWER MOTORS ONLY.
WH-NEUTRAL
BK-HI
BL-MED
RED-LO
ATTACH WIRES NOT USED
TO "PARK" TERMINALS
UNITS ARE FACTORY WIRED
FOR HIGH SPEED OPERATION.
5. USED ON PROPELLER MODELS 100 AND LARGER.
6. TWO SWITCHES: 30-75, ONE SWITCH: 100-125
7. OPTIONAL UNIT DISCONNECT SWITCH.
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
type. The following wiring diagram represents a unit equipped
with a single or two stage gas valve and direct spark ignition.
Wiring Diagram Selection