Reznor RA 140 Troubleshooting Guide download pdf (Page 49)

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 3, Page 49

RA(D) 140-235 DWG. #B-147351 REV. #11

THERMOSTAT

CAD CELL

SPARK GAP

IGNITION CONTROLLER

HOURS

BL BL

IGNITION

TRANSFORMER

FUSE HOLDER #6O241

1OMDA FUSE

5 2

EXHAUST FLOW

SWITCH (IF USED)

AIR PRESSURE

SWITCH

BK W

G/Y G

O JUMPER

REMOVE IF

OPTIONAL FLOW

SWITCH INSTALLED

RRR R R

712

BK BK

CHASSIS GND.

G GND.

BL BL W W

PURGE RELAY COI

BURNER MOTOR P

5 - 6

HOUR

METER

AIR COMPRESSOR

MOTOR

FUEL

VALVE

REMOTE FUEL

PUMP

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.

147351

REV. #11

EXCEPT FOR HEATING ELEMENT, FAN CONTROL AND LIMIT WIRING WHICH MUST BE 150°C.

MAIN CONTROL

BOX

BURNER JUNCTION

BOX

GND

115 V POWER SUPPLY

REMOTE PUMP

THERMOSTAT

OPT. EXHAUST BOOSTER

MAIN JUNCTION BOX

IGNITION CONTROL

MAIN JUNCTION BOX

BLACK

WHITE

BARE/GRN

BLACK

WHITE

BARE/GRN

WHITE

RED

BLACK

WHITE

BARE/GRN

WIRE NUT--BLACK WIRE

WIRE NUT--WHITE WIRE

WIRE NUT--GREEN WIRE

TERMINAL BLOCK 6

TERMINAL BLOCK 2

GROUND TERMINAL

TERMINAL T1 SCREW

TERMINAL T2 SCREW

TERMINAL BLOCK 19

TERMINAL BLOCK 2

GROUND TERMINAL

RA 12 MIN; RAD 8 MIN

14 MIN

18 MIN

14 MIN

SOURCE TO LOCATION COLOR CONNECTION TYPE GAUGE

FIELD CONNECTION CHART

SHORTENED SEQUENCE OF OPERATION

SEE INSTALLATION & OPERATION INSTRUCTIONS FOR FULL DETAILS

1. WITH POWER SUPPLIED AND DISCONNECT SWITCH "ON", OIL HEATERS PREHEAT OIL.

2. ON CALL FOR HEAT, THERMOSTAT CLOSES CAUSING IGNITION CONTROLLER TO ENERGIZE

BURNER MOTOR, ATOMIZING AIR COMPRESSOR, REMOTE OIL PUMP AND IGNITION

TRANSFORMER.

3. OIL IS IGNITED AND FLAME ESTABLISHED.

4. 3O - 45 SECONDS AFTER BEGINNING OF SEQUENCE, OR FAN

CONTROL ACTIVATES AIR MOVING DEVICE(S).

5. WHEN THERMOSTAT IS SATISFIED, POWER IS REMOVED FROM IGNITION CONTROLLER,

DE-ENERGIZING BURNER MOTOR, ATOMIZING AIR COMPRESSOR AND REMOTE OIL PUMP.

6. AIR MOVING DEVICE(S) CONTINUE TO OPERATE UNTIL EITHER

HEAT EXCHANGER IS COOL (NOMINAL 3 MINUTES).

7. IF IGNITION DOES NOT OCCUR WITHIN 30 SECONDS THE IGNITION CONTROLLER WILL LOCK

OUT. IF THE UNIT LOCKS OUT, RESET THE CONTROLLER BY PRESSING AND HOLDING

DOWN ON THE RED RESET BUTTON FOR (4) SECONDS AND THEN RELEASING IT.

DO NOT RESET MORE THAN ONE TIME !

FAN CONTROL

HIGH LIMIT

OIL HEATER TEMP CONTROL

NOZZLE TEMP CONTROL

OIL HEATER LOW TEMP LIMIT

NOZZLE LOW OIL TEMP LIMIT

HIGH LIMIT (MODEL14O/235)

SUPER HIGH LIMIT

FAN/BLOWER FAILURE LIMIT

135°F

22O°F

17O°F

16O°F

155°F

145°F

16O°F

35O°F

12O°F

1O5°F

45°F

155°F

15O°F

14O°F

1O5°F

12O°F

N/A

9O°F

CONTROL STYLE ACTIVATE RESET

CONTROL TEMPERATURE LIMITS

MANUAL RESET VIEWPORT LIMIT NC 275°F 45°F

UNIT SIZE OIL HEATER WATTS

14O 3OO

235 3OO

OIL HEATER CHART

(Note: W.D. 147351 covers Sizes 140, 235, and 350. Size 350 information

has been removed in this publication.)

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