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MACH® Series
Gas-Fired Boiler Table of Contents
5.1.3 Monthly (During Operation)....................30
5.1.4 Semi-Annually (every 6 months)............31
5.1.5 Annually .................................................31
5.2 Cleaning the Burner.........................................31
5.3 After All Repairs or Maintenance.....................31
5.4 Sequence of Operation....................................32
5.5 Troubleshooting...............................................32
5.5.1 Manual Reset Service Codes ................34
5.5.2 Auto-reset Service Codes ......................35
6.0 PARTS/TECHNICAL SUPPORT..............36
6.1 Wiring Diagrams ..............................................37
6.1.1 Terminal Block Assignments – High Voltage
Circuit (TB2)...............................................37
6.1.1a Terminal Block Assignments – Low Voltage
Circuit (TB1)...............................................38
6.1.2 Wiring Series C-300...............................39
6.1.3 Wiring Series C-450...............................40
6.1.4 Wiring Series C-750/900/1050...............41
6.2 Boiler Parts List ...............................................42
6.2.1 Main Assembly.......................................42
6.2.2 Control Panel .........................................43
6.2.3 Display Panel .........................................44
6.2.4 C-300/450 Heat Engine .........................45
6.2.5 C-750/900/1050 Heat Engine ................46
6.2.6 C-300 Boiler Gas Train ..........................47
6.2.7 C-450 Boiler Gas Train ..........................48
6.2.8 C-750/900/1050 Boiler Gas Train..........49
7.0 LIMITED WARRANTY .............................50
8.0 APPENDIX ...............................................52
Reorder No. 6020-V2WHPK
Improper use may
result in fire or injury.
Read instructions/safety
manual before installing,
operating or servicing boiler.
c
!
WARNING
1998 HCS, Inc. 800-748-0241
WARNING!
It is essential to read, understand, and follow the
recommendations of this manual before installing,
operating, 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
understand how this boiler operates.
WARNING
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.
WARNING!
Chemicals, fuels, or other potentially hazardous
or toxic materials must not be stored in the same
room as the boiler.
WARNING!
Installation and service must be performed by a
qualified installer or service agency who has been
trained on the Patterson-Kelley MACH Boiler.
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.
Immediately 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.