Supplemental Manual

ManualsBrandsRinnai ManualsCommercial HeatingHE+ tube heater 1-Stage: 65 40 Ft NG

HE+ Series 1-Stage Supplemental Manual

(also see DSI Troubleshooting previous page)

-



Improper adjustment, alteration, service or maintenance can

cause property damage, injury or death. This heater must be

installed and serviced only by a trained gas service technician.

SET THERMOSTAT TO CALL FOR HEAT

APPLY 120 VOLTS

• CHECK 120V TO DSI AT “L1”

• CHECK 120V OUT AT “IND” FROM DSI TO BLOWER

COMBUSTION AIR BLOWER STARTS

AIR PROVING SWITCH HAS CLOSED 24

VOLTS IS PRESENT AT “PSW” AT DSI

CONTROL.

• CHECK TUBING TO SWITCH IS CONNECTED AND

NOT BLOCKED OR KINKED

• CHECK AIR PRESSURE WITH MANOMETER

• CHECK FOR OBSTRUCTION IN THE AIR INTAKE

• REPLACE DEFECTIVE BLOWER

• CHECK INTEGRITY OF SWITCH

• REPLACE DEFECTIVE SWITCH

• CHECK DSI CONTROL FUSE FOR CONTINUITY

• VISIBLY CHECK IF IGNITER IS SHORTING OUT

• CHECK GROUND WIRING

• REMOVE AND INSPECT IGNITER AND LEAD

• CHECK BOOT OF THE IGNITION CABLE FOR SIGNS

OF MELTING OR OVERHEATING

• IF “YES” ... TAKE PROTECTIVE ACTION TO SHIELD

CABLE AND BOOT FROM EXCESSIVE TEMPERA-

TURE; REPLACE ANY DEFECTIVE COMPONENT

• CHECK CERAMIC INSULATOR AND CAP

• CHECK SPARK GAP SETTING IS 3/16” (ADJUST BY

MOVING THE GROUND PRONG ONLY)

• PERFORM IGNITION LEAD TEST (See SPARK IGNI-

TION CIRCUIT INSTRUCTIONS—Section 22)

• GOOD SPARK.....REPLACE IGNITER

• NO SPARK/OR WEAK.....REPLACE CONTROL

SPARK IGNITER / SENSOR

24V TO GAS VALVE

CONTINUED

YES

• REMEDY 120 VOLTS SUPPLY FAULT

• FAULTY RELAY SWITCH IN DSI — REPLACE DSI

BLOCKED FLUE SWITCH IS CLOSED

24 VOLTS IS PRESENT AT “TH” AT DSI