Patterson-Kelley Thermific Installation & Owner's Manual page 4

®
Thermific Gas-Fired Boiler
5.2 Cleaning the Burner.................................22
5.2.1 Semi-Annual Cleaning ....................22
5.2.2 Annual Cleaning .............................22
5.3 Removing the Exchanger ........................23
5.4 After All Repairs or Maintenance .............23
5.5 Sequence Of Operation ...........................23
5.6 Troubleshooting .......................................24
6.0 PARTS/TECHNICAL SUPPORT ....... 26
6.1 Wiring Diagrams ......................................27
6.1.1 On-Off .............................................28
6.1.1a On-Off IRI .....................................30
6.1.2 Lo-Hi-Lo ..........................................32
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1998 HCS, Inc. 800-748-0241
WARNING!
It is essential to read, understand, and follow the rec-
ommendations of this manual before installing, operat-
ing, or servicing this equipment. Failure to do so could
result in fire or explosion and serious injury, death,
and/or property damage.
The same features which permit this boiler to achieve
high-efficiency performance make it unlike most other
boilers of this general size, so it is important to under-
stand how this boiler operates.
Do not store or use gasoline or other flammable vapors
or liquids in the vicinity of this or any other appliance.
WARNING!
Installation and service must be performed by a quali-
fied installer, service agency, or gas supplier.
WARNING
!
Improper use may
result in fire or injury.
Read instructions/safety
manual before installing,
operating or servicing boiler.
Reorder No. 6020-V2WHPK
6.1.2a Lo-Hi-Lo IRI .................................. 34
6.1.3 Water Cut-Off.................................. 36
6.2 Boiler Parts List ....................................... 38
6.2.1 Main Assembly ............................... 38
6.2.2 Control Panel .................................. 39
6.2.3 Gas Train ........................................ 40
6.2.4 Cabinet ........................................... 41
7.0 LIMITED WARRANTY ....................... 42
7.1 Express Warranty .................................... 42
7.2 Warranty Disclaimer ................................ 42
What to do if you smell gas:
•
Do not try to light any appliance.
•
Do not touch any electrical switch.
•
Do not use any phone in your building. Immedi-
ately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
•
If you cannot reach your gas supplier call the fire
department.
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