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WARNINGS 4
Pay Attention to These Terms 4
RECEIVING EQUIPMENT 5
GENERAL SPECIFICATIONS 5
INSTALLATION 7
Code Requirements 7
Mounting Base 7
Clearance Requirements 7
Combustion/Ventilation Air 8
Venting Connections 9
Vent Damper Installation Location 11
VENT DAMPER WIRING
DIAGRAM 14
Gas Supply Connections 15
Gas Pressure 15
Water Connections & System Piping 15
Electrical Wiring 18
WIRING DIAGRAMS 19
SERVICING PROCEDURES 26
General Location of Controls 26
SEQUENCE OF OPERATION 26
Intermittent Ignition Device (IID) 26
START-UP PROCEDURES 27
Lighting the Boiler 27
For Standing Pilot Models 27
Filling the System 27
Checking the Circulator 27
For Standing Pilot Models with
Robertshaw Gas Valve, 2-stage
Operation (Models 90, 13 & 180) 28
To Turn Off Gas to the Boiler
(Models 90, 135 & 180) 28
For Automatic Ignition Models 28
For Intermittent Ignition (IID)
with Honeywell or Robertshaw
Gas Valve (All Models) 29
To Turn Off Gas to the Boiler 29
Shut-down Procedure 29
Testing the Ignition afety Shut-off 30
Safe Shut-down Tests 30
Inspection Procedures 31
REPAIR PROCEDURES 32
Tube Cleaning Procedure 32
Heat Exchanger Removal 32
Heat Exchanger Re-assembly 33
Combustion Chamber Removal 33
TROUBLESHOOTING 34
Adjustment & Replacement of
Components 36
Replacement Parts 37
WARRANTY 38
CONTENTS
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