Danger this reznor – Reznor X Option - Option - Installation - Power Venter User Manual

Page 5

Form I-X Venter, P/N 136958R1, Page 5

4. Electrical Wiring -- Follow the wiring diagram in FIGURE 6A or 6B for wiring the

venter to the heater. Use flexible conduit for both line voltage and control voltage wir-

ing.
All wiring and connections, including electrical grounding, MUST be in accordance with

the National Electric Code ANSI/NFPA No. 70 (latest edition) or in Canada, with the

Canadian Electrical Code, Part I-C.S.A. Standard C22.1. In addition, the installation

must comply with local ordinances and applicable gas company requirements.

DANGER

This Reznor

venter must be installed and wired in accordance with these installation

instructions. The venter pressure switch MUST be wired in series with the thermostat to

interrupt the main gas valve circuit. After installation, pressure switch operation MUST be

checked to verify proper operation. See Hazard Levels, page 1.

FIGURE 6A -

Wiring Diagram

for Model X unit

with Power Vent

This wiring

diagram applies

to units with spark

pilot, block vent

switch, and power

venter

sub-assembly with

a pressure swtich.

See NOTES top

of page 6.

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 MOTOR

CUSTOMER'S

CONTACTOR COIL

DISCONNECT SWITCH

115/1/60

GRD

LIMIT

CONTROL

OPTIONAL SINGLE ST

AGE THERMOST

WIRING IN VENTER (SHIPPED SEPARATE)

CONTACTS

VENTER RELAY

FAN TD

HEATER

MAIN

PILOT

BLOCKED VENT

SWITCH

MANUAL RESET

COIL

VENTER RELAY

PRESSURE

SWITCH

40 VA. CONTROL

24V

115V

TRANSFORMER

VENTER MOTOR

& CAPACITOR

(SEE NOTES)

REDUND

ANT

GAS V

TERNA

.R. OR R

OBER

TSHA

AIN

PIL

PV-MV

AIN

REDUND

ANT

GAS V

HONE

YWELL

TERMINAL BLOCK -- HEATER COMPARTMENT

10, 11, B & W

CONTACTS

FAN TD

THERMAL SWITCH

IGNITION

CONTROLLER

PROBE

GND

SPARK

FLAME SENSING

MV/PV

SENSE

24V GND

GND BURNER

BURNER

GROUND

- DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED BY OTHERS: BLOWER RELAY

BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105° C., EXCEPT FOR

- CAUTION: IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST

- THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT: THERMOSTAT

- THE FOLLOWING CONTROLS ARE SUPPLIED BY REZNOR FOR FIELD INSTALLATION: VENTER

- LINE AND BLOWER MOTOR BRANCH CIRCUIT WIRE SHOULD BE SIZED TO

PREVENT VOLTAGE DROP BEYOND FIVE PERCENT OF SUPPLY LINE VOLTAGE.

SENSOR LEAD WIRE WHICH MUST BE 150° C.

NOTES

- USE #14 GA. WIRE FOR LINE WIRING ON UNIT.

- USE #18 GA. WIRE FOR 24 VOLT CONTROL WIRING ON UNIT.

FUSES AND SIZE ACCORDING TO 1.25 TIMES THE MAXIMUM TOTAL INPUT AMPS.

- WHEN PROVIDING OR REPLACING FUSES IN THE FUSIBLE DISCONNECT SWITCH, USE DUAL ELEMENTS TIME DELAY

- DISCONNECT SWITCH IS FIELD FURNISHED OR AVAILABLE FROM FACTORY AS AN OPTION.

1, 4, 6, 7, 8,

- BLOWER MOTOR REMAINS ON AS DETERMINED BY FAN TIME DELAY.

- THE SENSING PROBE PROVES THE PRESENCE OF THE PILOT FLAME.

MAIN VALVE. THE MAIN GAS IGNITES AND UNIT FIRES AT FULL RATE.

- VENTER PRESSURE SWITCH CLOSES ENERGIZING THE PILOT GAS VALVE AND SPARK GAP TO PRODUCE A PILOT FLAME

ON EACH OPERATING CYCLE. THE SENSING PROBE PROVES THE PRESENCE OF THE PILOT FLAME AND ENERGIZING THE

SAFETY SWITCH PORTION OF THE CONTROL. THE SWITCH ACTION DE-ENERGIZES THE SPARK GAP AND ENERGIZES THE

- THERMOSTAT CALLS FOR HEAT ENERGIZING THE VENTER MOTOR.

- BLOWER MOTOR OPERATES FROM FAN TIME DELAY.

- SET THERMOSTAT AT LOWEST SETTING FOR SHUTDOWN.

- ENERGIZING THE GAS VALVE.

- DE-ENERGIZING THE IGNITOR.

- SET THERMOSTAT SWITCH AT DESIRED SETTING.

- TURN ON POWER, MAIN AND PILOT MANUAL GAS VALVES.

- SET THERMOSTAT SWITCH AT LOWEST SETTING.

OPERATING SEQUENCE

- 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)

VENTER

X: AH2 OR AH3-AG1-AK1-CA1-CL1

DWG. #280110 REV #2