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!!WARNING!!
FIRE, EXPLOSION
OR SHOCK
HAZARD
MAY CAUSE
PROPERTY
DAMAGE,
SEVERE
INJURY
OR DEATH.
DO NOT ATTEMPT TO MODIFY THE PHYSICAL OR ELECTRICAL
CHARACTERISTICS OF THIS BOILER INANY WAY.
IMPORTANT
1.
IN A RESET FROM LOCKOUT CONDITION, ALL ELECTRICAL METER READINGS AT THE GAS CONTROL VALVE
(24 VAC) MUST BE TAKEN WITHIN THE TRIAL FOR IGNITION PERIOD.
2. IF ANY COMPONENT
DOES NOT FUNCTION PROPERLY, MAKE SURE IT IS CORRECTLY INSTALLED AND
WIRED BEFORE REPLACING IT.
3. STATIC ELECTR!CITY
DISCHARGE CAN DAMAGE THE INTEGRATED BOILER CONTROL (IBC). TOUCH
METAL SURFACE TO DISCHARGE STATIC ELECTRICITY
BEFORE TOUCHING IBC.
4. THE IBC CANNOT BE REPAIRED.
IF IT MALFUNCTIONS
IT MUST BE REPLACED.
5. ONLY TRAINED, EXPERIENCED
SERVICE TECHNICIANS
SHOULD SERVICE THE IBC SYSTEMS.
FOLLOWING
TROUBLESHOOTING,
CHECK OUT THE SYSTEM FOLLOWING
THE SEQUENCE OF OPERATION SECTION OF
THIS CHAPTER FOR A NORMAL LIGHT OFF SEQUENCE.
6. ALL CONTROLS ARE FACTORY TESTED AT LEAST ONCE IN THE ASSEMBLY PROCESS AND A DEFECTIVE
CONTROL IS GENERALLY
THE LEAST LIKELY CAUSE. 1F YOU SUSPECT YOU HAVE A DEFECTIVE CONTROL,
DOUBLE CHECK YOUR PATH THROUGH THE TROUBLESHOOTING
CHART BEFORE YOU REPLACE IT.
7.
IT IS ALSO IMPORTANT TO REMEMBER THAT THE LIKELIHOOD OF COMING ACROSS TWO IDENTICAL
DEFECTIVE CONTROLS IN A ROW IS ALMOST NIL. IF IT SEEMS TO BE HAPPENING, CHANCES ARE THAT
EITHER THERE IS NOTHING WRONG WITH THE CONTORL OR IT IS BEING DAMAGED BY SOME OTHER
PROBLEM (A SHORT BURNING OUT A TRANSFORMER,
FOR EXAMPLE).
2.
3.
INITIAL
SERVICE
CHECKS
BEFORE TROUBLESHOOTING:
A.
MAKE SURE THAT CIRCUIT BREAKER IS ON OR FUSE IS OK AT ELECTRICAL
PANEL.
B.
MAKE SURE THAT SERVICE SWITCH IS ON.
C.
MAKE SURE THAT GAS IS ON AT THE GAS METER, AT ALL APPROPRIATE MANUAL SHUTOFF VALVES
AND AT THE GAS CONTROL VALVE.
D.
MAKE SURE THAT THE THERMOSTAT IS CALLING FOR HEAT.
E.
CHECK THAT WIRE CONNECTORS AT THE INTEGRATED BOILER CONTROL AND AT THE ORIGINATING
CONTROL ARE SECURELY PLUGGED IN OR CONNECTED.
F.
CHECK THAT HOSES ARE SECURELY
CONNECTED
AND ARE NOT PLUGGED IN OR DAMAGED.
TROUBLESHOOTING
TOOLS:
A.
VOLTMETER
TO CHECK 120 VAC AND 24 VAC
B.
CONTINUITY
TESTER.
C.
INCLINED
MANOMETER
OR PRESSURE GAUGE WITH 0-2.0" RANGE (0.01" SCALE) FOR MEASURING
SUCTION PRESSURES AT PRESSURE SWITCH.
D.
U-TUBE MANOMETER
OR DIFFERENTIAL
PRESSURE
GAUGE WITH 0-14" RANGE (0.1" SCALE) FOR
MEASURING
INLET AND MANIFOLD GAS PRESSURES.
WHAT IS SYSTEM STATUS?
A.
CONSULT THE CHART ON THE FOLLOWING
PAGE.
B.
FIGURE 16 ON PAGE 34 SHOWS THE LOCATION ON THE BOILER OF THE DIAGNOSTIC
INDICATOR
LAMPS.
TROUBLE SHOOTING
50
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