Form RZ-NA-I-FE/BE, Mfg P/N 98807 Rev 10, Page 13
2 4
CONTACTS
VENTER RELAY
OPTIONAL
S/W SWITCH
FAN CONTROL
BK
BK BK
BK
BK BK
BK
L1
(HOT)
BK
R
VENTER MOTOR
BK
BR
GROUND TERMINAL
(TERMINAL STRIP)
L2
(COM)
115/1/60, 208/1/60 OR 230/1/60
31
VENTER RELAY COIL
BL BR
BR
R
SET ANTICIPATOR AT 0.8 AMPS
W.R 1C30-339 THERMOSTAT W-S23-6 SUBBASE
W
R
W
PRESSURE
SWITCH
Y YYY
LIMIT
CONTROL
Y
GRND.
RECYCLE
G67BG-5
OR
LOCKOUT
IGNITION
CHASSIS GRND.
CONTROLLER
G770NGC-4
1
3
2
4
W
PROBE
GRND
IGNITOR
STRIP
FLAME SENSING
BK
ALTERNATE HONEYWELL
REDUNDANT GAS VALVE
BL
PILOT
OR PV
TH-TR
TH OR
MV
PV-MV
TR OR
MAIN
PILOT
W.R. OR ROBERTSHAW
REDUNDANT GAS VALVE
P
MAIN
M
C
BR
BR
BL
BL
R
BK
FIELD WIRING
TERMINAL STRIP
FACTORY WIRING
WWW
BK BK
BR
BR
BK
G
GRD
CONTROL
BK
R
24V
LINE VOLT
BR
R
TRANSFORMER
Y
BK
FAN MOTOR
BKBK
FE 25-400 OPT. AH2/AH3 WD #97302 REV #8
NOTES
1. THE FOLLOWING CONTROLS ARE FIELD INSTALLED OPTIONS:
THERMOSTAT
2. THE FOLLOWING CONTROLS ARE FACTORY INSTALLED OPTIONS:
S/W SWITCH
3. DOTTED WIRING INSTALLED BY OTHERS.
4. CAUTION: IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE APPLIANCE MUST BE
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE
RATING OF AT LEAST 105 DEGREES C., EXCEPT FOR SENSOR LEAD AND
LIMIT WIRING WHICH MUST BE 150 DEGREES C.
5. USE #18 GA WIRE FOR ALL WIRING EXCEPT FAN MOTOR CIRCUIT.
6. LINE AND FAN MOTOR BRANCH WIRE SIZES SHOULD BE OF A SIZE TO PREVENT VOLTAGE
DROPS BEYOND 5% OF SUPPLY LINE VOLTAGE.
8. SEE INSTALLATION INSTRUCTIONS FOR GREATER DETAIL.
FOR 208V. UNITS USE BLACK AND RED LEADS (CAP YELLOW).
ON 115V. UNITS THE CONTROL TRANSFORMER IS A SINGLE VOLTAGE PRIMARY.
7. ON 230V. UNITS THE CONTROL TRANSFORMER HAS A DUAL VOLTAGE PRIMARY.
FOR 230V. UNITS USE BLACK AND YELLOW LEADS (CAP RED).
FOR 115V. UNITS USE BLACK AND YELLOW LEADS.
OPERATING SEQUENCE
1. SET THERMOSTAT AT LOWEST SETTING.
2. TURN ON MAIN AND PLOT MANUAL GAS VALVES.
3. TURN ON POWER TO UNIT.
5. THERMOSTAT CALLS FOR HEAT ENERGIZING THE VENTER MOTOR.
6. VENTER PRESSURE SWITCH CLOSES FIRING UNIT AT FULL RATE AFTER PILOT
8. IF THE FLAME IS EXTINGUISHED DURING MAIN BURNER OPERATION THE SAFETY SWITCH
CLOSES THE MAIN VALVE AND RECYCLES THE SPARK GAP. ON UNITS EQUIPPED
WITH THE G77ONGC-4 LOCKOUT CONTROL, IF PILOT IS NOT ESTABLISHED WITHIN 120
SECONDS (APPROX.) UNIT LOCKS OUT AND THE UNIT MUST BE RESET BY
INTERRUPTING POWER TO CONTROL CIRCUIT (SEE LIGHTING INSTRUCTIONS).
4. SET THERMOSTAT AT DESIRED SETTING.
PROVING SEQUENCE.
7. FAN CONTROL SENSES HEAT EXCHANGER TEMPERATURE, ENERGIZING THE
FAN MOTOR.
OPTIONAL FACTORY WIRING
FACTORY WIRING
FIELD WIRING
WIRE NUT
CRIMP TERMINAL
WHITE - W
PURPLE - PR
BLUE - BL
GREEN - G
YELLOW - Y
ORANGE - O
RED - R
BROWN - BR
BLACK - BK
WIRING CODE
TYPICAL WIRING DIAGRAMS -- Pages 13 - 16
CAUTION: If any of the original wire as supplied with
the appliance must be replaced, it must be replaced
with wiring material having a temperature rating of at
least 105°C, except for limit control and sensor lead
wires which must be 150°C. See Hazard Levels, page
2.
Field Control Wiring Length and Gauge
Total Wire Distance from MinimumRecommended
Length Unit to Control Wire Gauge
150' (45.7 m) 75' (22.9 m) #18 gauge
250' (76.2 m) 125' (38.1 m) #16 gauge
350' (106.7 m) 175' (53.3 m) #14 gauge
Fan-Type, Power-Vented Model with Intermittent Spark Pilot, Single-Stage Heating,
Natural or Propane
To Next Page
Loading...
Need help?
General
