GB250-IM-5 42-9185

GB250 SERIES

INSTALLATION, OPERATION&MAINTENANCE MANUAL AND REPLACEMENT PARTS LISTGas-Fired Steam Cast Iron Boilers175,000 to 400,000 Btuh InputStanding Pilot, Standing Pilot & Vent Damper,Intermittent Pilot, Intermittent Pilot & VentDamper

 

 

 

 

 

 

 

 

SECTION 1: INTRODUCTION

 

 

Step 6: Wiring Boiler ..............................................

11

 

 

Code Compliance. ....................................................

2

 

 

 

 

 

Venting Requirements ..............................................

3

 

SECTION 3: START-UP & OPERATION

 

 

 

Chimney Requirements ............................................

3

 

Sequence Of Operation ..........................................

16

 

 

Combustion Air Requirements ..................................

3

 

Prior To Start-Up ....................................................

16

 

 

Water Treatment........................................................

4

 

Start-Up & Adjustments ..........................................

16

 

 

Shipment of Boiler ....................................................

4

 

 

 

 

 

 

 

 

SECTION 4: MAINTENANCE

 

 

 

SECTION 2: BOILER INSTALLATION

 

 

Before Each Heating Season..................................

19

 

 

Step 1: Locating/Setting Boiler..................................

5

 

How To Change Orifices ........................................

20

 

 

Step 2: Installing Steam Piping ................................

6

 

Heating System Problems & Causes ......................

20

 

 

Step 3: Installing Hydronic Components ..................

7

 

Replacement Parts List ..........................................

21

 

 

Step 4: Venting Boiler................................................

7

 

Warnings ................................................................

25

 

 

Step 5: Installing/Testing Gas Piping ......................

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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