Smith Cast Iron Boilers GB250 SERIES User Manual

GB250-IM-5

42-9185

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..................................19
How To Change Orifices ........................................20
Heating System Problems & Causes ......................20
Replacement Parts List ..........................................21
Warnings ................................................................25