Reznor B Unit Installation Manual - Manual (Page 26)

Form I-F/B, P/N 98126 R21, Page 26
7. Electrical Supply and Wiring (cont'd)
7.4 Typical Wiring
Diagrams
F25-400 AH3-BF4 OR CH1-CL1 WD #274791
FAN CONTROL
BK
L1
(HOT)
BK
BK
R
24V
LINE VOLT
BR
R
Y
BK
GROUND TERMINAL
(TERMINAL STRIP)
L2
(COM)
220/1/50, 115/1/60
BR
R
SET ANT
. A
T 0.8 AMPS
OPTIONAL SINGLE ST
A
GE
THERMOST
AT
W
R
W1
Y Y
LIMIT
CONTROL
Y
R
BK
FIELD WIRING TERMINAL STRIP FA
CT
OR
Y WIRING
W
W BK
BK
GRD
G
FAN MOTOR
BK
BR
BLOCKED VENT
MANUAL RESET
SWITCH
Y
BK
AL
TERNA
TE HONE
Y
WELL
REDUNDANT
GAS V
AL
VE
BL
PIL
O
T
OR PV
TH-TR
TH OR
MV
BR PV-MV
TR OR
MAIN
BK BK
S/W SWITCH
OPTIONAL
CONTROL
TRANSFORMER
R
WHITE - W
PURPLE - PR
BLUE - BL
GREEN - G
YELLOW - Y
ORANGE - O
RED - R
BROWN - BR
BLACK - BK
WIRING CODE
NOTES
- THE FOLLOWING CONTROLS ARE FIELD INSTALLED OPTIONS:
THERMOSTAT AND S/W SWITCH
- THE FOLLOWING CONTROLS ARE FACTORY INSTALLED OPTIONS:
NONE
- DOTTED WIRING INSTALLED BY OTHERS.
- USE #18 GA WIRE FOR ALL WIRING ON UNIT.
- LINE AND BLOWER MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO
PREVENT VOLTAGE DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.
- SEE INSTALLATION INSTRUCTIONS FOR GREATER DETAIL.
ON 115V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
- ON 230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
FOR 115V. 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).
A TEMPERATURE RATING OF AT LEAST 105 DEGREES C., EXCEPT FOR SENSOR
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING
- CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE
LEAD WIRE WHICH MUST BE 150 DEGREES C.
PIL
O
T
W
.R.
OR R
OBER
TSHA
W
REDUNDANT
GAS V
AL
VE
P
MAIN
M
C
BL
BK
IGNITION
CONTROLLER PROBE
GRD
SPARK
FLAME SENSING
24V MV/PV
GND BURNER
24V GND
MV
SENSE
TH
PV
G
UNIT CHASSIS
GROUND
OPTIONAL VENT DAMPER
FIELD INSTALLED
BR
BR R
OPERATING SEQUENCE
- SET THERMOSTAT AT LOWEST SETTING.
- TURN ON MAIN AND PILOT MANUAL GAS VALVES.
- TURN ON POWER TO UNIT.
- THERMOSTAT CALLS FOR HEAT, OPENING THE VENT DAMPER AND
FIRING UNIT AT FULL RATE AFTER PILOT PROVING SEQUENCE.
- FAN CONTROL SENSES HEAT EXCHANGER TEMPERATURE ENERGIZING
- SET THERMOSTAT AT DESIRED SETTING.
- IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION,
THE SAFETY SWITCH CLOSES THE MAIN VALVE. IF THE PILOT IS
NOT ESTABLISHED WITHIN 120 SEC. THE UNIT LOCKS OUT FOR
ONE HOUR, UNLESS IT IS RESET BY INTERRUPTING POWER TO
THE CONTROL CIRCUIT. (SEE LIGHTING INSTRUCTIONS)
THE FAN MOTOR.
- SET THERMOSTAT AT LOWEST SETTING FOR SHUTDOWN.
WIRE CONNECTOR
CRIMP TERMINAL
OPTIONAL FIELD WIRING
FACTORY WIRING
FIELD WIRING
OPTIONAL (CH1 OPTION) FIELD WIRING
OPTIONAL (BF4 OPTION) FACTORY WIRING
OR
FIGURE 30 - Fan-type, Gravity-Vented, Model F Sizes 25-400 with
Intermittent Spark Pilot, Single Stage Heating, Natural or Propane