VGAB2-501
42-9117
VGAB-SERIES
INSTALLATION,
OPERATION &
MAINTENANCE MANUAL
AND REPLACEMENT
PARTS LIST
Gas-Fired Steam Cast Iron Boilers
175,000 to 400,000 Btuh Input
SECTION 1: INTRODUCTION
Code Compliance. ....................................................2
Venting Requirements ..............................................3
Chimney Requirements ............................................3
Combustion Air Requirements ..................................3
Water Treatment........................................................4
Shipment of Boiler ....................................................4
SECTION 2: BOILER INSTALLATION
Step 1: Locating/Setting Boiler..................................5
Step 2: Installing Steam Piping ................................6
Step 3: Installing Hydronic Components ..................7
Step 4: Venting Boiler................................................7
Step 5: Installing/Testing Gas Piping ......................10
Step 6: Wiring Boiler ..............................................11
SECTION 3: START-UP & OPERATION
Sequence Of Operation ..........................................16
Prior To Start-Up ....................................................16
Start-Up & Adjustments ..........................................16
SECTION 4: MAINTENANCE
Before Each Heating Season..................................20
How To Change Orifices ........................................21
Heating System Problems & Causes......................21
Replacement Parts List ..........................................22
Standing Pilot,
Standing Pilot & Vent Damper,
Intermittent Pilot and Intermittent Pilot
& Vent Damper
IN UNITED STATES: 260 NORTH ELM ST., WESTFIELD, MA 01085 • (413) 564-5515 FAX (413) 568-9613
IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO L5S 1L4 • (905) 672-2991 FAX (905) 672-2883
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