Reznor X Unit Installation Manual - Manual (Page 18)

Form I-X, P/N 150491 R10, Page 18
FIGURE 17 - Wiring Diagram for Model X Furnace with Spark Pilot and Two-Stage Gas Valve
6
7
8
9
10
11
12
13
14
15
16
17
18
FACTORY WIRING
FIELD WIRING
WHITE - W
PURPLE - PR
BLUE - BL
GREEN - G
YELLOW - Y
ORANGE - O
RED - R
BROWN - BR
BLACK - BK
WIRING CODE
TOTAL WIRE MINIMUM RECOMMENDED
LENGTH WIRE SIZE
150 FEET #18 GA.
250 FEET #16 GA.
350 FEET #14 GA.
FIELD CONTROL WIRING
BLOWER RELAY
CUST. 24 VOLT
COIL CR
16
DISCONNECT SWITCH
LINE/1/60
G
GRD
BL R
Y
LIMIT
CONTROL
26
25
24
23
22
21
20
19
OPT. FACTORY WIRING
BK BR 19
H
TD
H
BR
BR
BK
BL
16
FAN TD
HEATER
LOW
STAGE
PILOT
BLOCKED VENT
SWITCH
MANUAL RESET
Y
27
40 VA. CONTROL
BK
BL
24V
LINE VOLT
BR
R
TRANSFORMER
Y
R R
HIGH
STAGE
13
12
4
11
7
7
7
7 10 8
B W
- SET THERMOSTAT SWITCH AT "OFF" POSITION.
- TURN ON POWER, MAIN AND PILOT MANUAL GAS VALVES.
- SET THERMOSTAT SWITCH AT "AUTO" POSITION.
- LOW STAGE OF THERMOSTAT CALLS FOR HEAT.
- ENERGIZING THE IGNITION CONTROLLER AND PILOT GAS VALVE, LIGHTING PILOT.
- THE SENSING PROBE PROVES THE PRESENCE OF THE PILOT FLAME.
- DE-ENERGIZING THE IGNITOR.
- ENERGIZING THE LOW STAGE OF THE GAS VALVE.
- HIGH STAGE OF THERMOSTAT CALLS FOR HEAT.
- ENERGIZING THE HIGH STAGE OF THE GAS VALVE.
- SET THERMOSTAT AT "OFF" POSITION FOR SHUTDOWN.
OPERATING SEQUENCE
8 VA. MAX.
7 8
W1
W2
OPTIONAL
TWO
ST
A
GE THERMOST
AT
R
X-HX-CX-HCX SERIES AH2/AH3-AG2-CL22 WD #274950
BL
HIGH STG
HI
PV
PIL
O
T
STG LO
W
C
MV
REDUNDANT
GAS V
AL
VE
HONE
Y
WELL T
WO
ST
A
GE
8 10
OPTIONAL SP-ST
S/W SWITCH
BK BK
- BLOWER MOTOR IS ENERGIZED AS DETERMINED BY FAN TIME DELAY.
PIL
O
T
AL
TERNA
TE
W
.R.
T
WO
ST
A
GE
REDUNDANT
GAS V
AL
VE
R
BL
3
HIGH STG
4
BK
STG
2
LO
W
1
BR
(SEE NOTES)
- ON A CALL FOR HEAT, THE BLOWER MOTOR OPERATES FROM FAN TIME DELAY.
BK
- BLOWER MOTOR REMAINS ON AS DETERMINED BY FAN TIME DELAY.
CONTACTS
FAN TD
1 3
TERMINAL BLOCK --
HEATER COMPARTMENT
4, 7, 8, 10, 11, 12, 13, B & W
BL
BK
IGNITION
CONTROLLER PROBE
GRND
SPARK
FLAME SENSING
MV/PV
GND
GND
MV
SENSE
TH
PV
G
BURNER
GND
BR
Y
ON 115/460V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
- ON 208/230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
- USE #14 GA. WIRE FOR LINE AND MOTOR WIRING ON THREE PHASE UNIT.
TO PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.
- LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SIZE SHOULD BE OF A SIZE
A TEMPERATURE RATING OF AT LEAST 105 DEGREES C., EXCEPT FOR ENERGY
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
- CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
- DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED
- THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT: THERMOSTAT
- THE FOLLOWING CONTROLS ARE SUPPLIED BY REZNOR FOR FIELD INSTALLATION: CONTROL SWITCH
FOR 115/460V. UNITS USE BLACK AND YELLOW LEADS.
FOR 208V. UNITS USE BLACK AND RED LEADS (CAP YELLOW).
FOR 230V. UNITS USE BLACK AND YELLOW LEADS (CAP RED).
CUTOFF OR SENSOR LEAD WIRE WHICH MUST BE 150 DEGREES C.
- USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.
BY OTHERS: NONE
NOTES
USE DUAL ELEMENTS TIME DELAY FUSES AND SIZE ACCORDING TO 1.25
TIMES THE MAXIMUM TOTAL INPUT AMPS.
- WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH
- DISCONNECT SWITCH IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.
C 7
- IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION,
THE SAFETY SWITCH CLOSES THE MAIN VALVE. IF THE PILOT IS NOT EXTABLISHED WITHIN
120 SEC. THE UNIT LOCKS OUT FOR ONE HOUR, UNLESS IT IS RESET BY INTERRUPTING POWER
TO THE CONTROL CIRCUIT. (SEE LIGHTING INSTRUCTIONS.)
7.4 Typical Wiring Diagrams (cont'd)
7.0 Electrical Supply and Wiring (cont'd)