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Gas-Fired Boiler Table of Contents
1.0 INTRODUCTION..................................1
1.1 Code Compliance................................1
1.1.1 Direct Vent/Sealed Combustion
System ..............................................1
1.1.2 Fresh Air System...........................1
1.2 Basic Inlet/Vent Configurations ...........1
1.3 Purpose and Scope of this Manual......2
2.0 SAFETY ...............................................2
3.0 INSTALLATION....................................3
3.1 Components Provided.........................3
3.2 Combustion Air Inlet System ...............3
3.2.1 System Design - Pressure Drop ....3
3.2.2 Inlet Duct.......................................3
3.2.3 Air Inlet Termination ......................3
3.2.4 Inlet Duct Assembly at the Boiler...4
3.2.5 Inlet Damper and Auxiliary Control
Panel (optional) .................................5
3.3 Exhaust Venting System .....................5
3.3.1 System Design - Materials, Length,
Size, and Construction ......................5
3.3.2 Flue Gas Outlet Duct.....................5
3.3.3 Exhaust Vent Connection at the
Boiler.................................................6
3.3.4 Flue Gas Termination....................6
3.4.5 Equivalent Length of Fittings .........7
3.4 Clearances..........................................7
3.4.1 Sidewall Installations.....................7
3.4.2 Rooftop Installations......................8
3.4.3 Minimum Clearance for Boiler
Connections ......................................8
4.0 OPERATION ........................................9
4.1 Sequence of Operation .......................9
4.2 Combustion Operating Conditions.......9
4.2.1 Combustion Air Requirement,
SCFM............................................10
5.0 MAINTENANCE .................................10
6.0 WIRING DIAGRAMS..........................11
6.1 On-Off Series 700, 1000, 1200.........11
6.1a On-Off IRI Series 700, 1000, 1200 .13
6.1b Lo-Hi Lo ..........................................15
6.1c Lo-Hi-Lo IRI .................................... 17
6.1d On-Off Series 1500, 1700, 2000 ..... 19
6.1e On-Off IRI Series 1500, 1700, 2000 21
6.2 Auxiliary Control Panel...................... 23
6.2.1 On-Off Auxiliary Control Panel .... 23
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.
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
qualified installer, service agency, or gas supplier.
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.