Smith Cast Iron Boilers GB200 SERIES User Manual

GB200-IM-5
42-9184
GB200 SERIES
INSTALLATION, OPERATION
& MAINTENANCE MANUAL
WITH REPLACEMENT
PARTS LIST
GAS-FIRED STEAM
CAST IRON BOILERS
85,000 TO 165,000 BTUH INPUT
INTERMITTENT PILOT/VENT DAMPER
& STANDING PILOT/VENT DAMPER
SECTION 1: INTRODUCTION
Code Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Venting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . . . . .3
Combustion Air Requirements . . . . . . . . . . . . . . . . . . . . .3
Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Shipment of Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SECTION 2: BOILER INSTALLATION
Step 1: Locating/Setting Boiler . . . . . . . . . . . . . . . . . . . . .4
Step 2: Installing Steam Piping . . . . . . . . . . . . . . . . . . . .5
Step 3: Installing Hydronic Components . . . . . . . . . . . . .5
Step 4: Venting Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Step 5: Installing/Testing Gas Piping . . . . . . . . . . . . . . . . .7
Step 6: Wiring Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SECTION 3: START-UP & OPERATION
Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . .11
Prior To Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Start-Up & Adjustments . . . . . . . . . . . . . . . . . . . . . . . . .11
SECTION 4: MAINTENANCE
Before Each Heating Season . . . . . . . . . . . . . . . . . . . . .14
Steam Boiler Cleaning Instructions . . . . . . . . . . . . . . . . .15
How To Change Orifices . . . . . . . . . . . . . . . . . . . . . . . . .15
Heating System Problems & Causes . . . . . . . . . . . . . . .15
REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . .16-17
WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
TABLE OF CONTENTS
AA
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WESTCAST, INC.
260 NORTH ELM STREET WESTFIELD, MA 01085
TEL. (413) 562-9631 FAX (413) 562-3799
www.smithboiler.com

Smith Cast Iron Boilers GB200 SERIES Specifications

General

Brand	Smith Cast Iron Boilers
Model	GB200 SERIES
Category	Boiler
Language	English

Summary

SECTION 1: INTRODUCTION AND GENERAL REQUIREMENTS

CODE COMPLIANCE AND VENTING

Covers installation codes, venting requirements, common flues, and system modifications.

CHIMNEY AND COMBUSTION AIR

Details chimney inspection, combustion air provisions, and safety requirements.

WATER TREATMENT AND SHIPMENT

Discusses water quality recommendations and boiler packaging.

OPTIONAL VENT DAMPER

Information regarding the optional vent damper and its packaging.

SECTION 2: BOILER INSTALLATION

LOCATION AND CLEARANCES

Guidelines for boiler placement, required clearances, and base requirements.

PIPING INSTALLATION

Instructions for steam piping, Hartford loop, and hydronic component installation.

VENTING BOILER INSTALLATION

Procedures for installing the vent system, draft diverter, and vent damper.

GAS PIPING INSTALLATION AND TESTING

Covers gas pipe sizing, installation practices, and testing procedures.

WIRING BOILER

WIRING DIAGRAMS AND OPERATION SEQUENCES

Provides wiring diagrams and operational sequences for various boiler configurations.

SECTION 3: START-UP AND OPERATION

SEQUENCE OF OPERATION AND SAFETY SWITCHES

Explains boiler operation sequence and the function of spill/rollout switches.

PRE-STARTUP AND ADJUSTMENT PROCEDURES

Details steps before startup, thermostat settings, and burner adjustments.

BURNER FLAME AND GAS INPUT ADJUSTMENT

Guides on observing burner flame, checking gas input, and adjusting controls.

PILOT LIGHTING INSTRUCTIONS

Step-by-step instructions for lighting continuous and intermittent pilot systems.

SECTION 4: MAINTENANCE

ROUTINE SEASONAL MAINTENANCE

Procedures for annual inspection, cleaning of draft diverter and flue passages.

BOILER CLEANING AND ORIFICE REPLACEMENT

Instructions for steam boiler cleaning and changing gas burner orifices.

HEATING SYSTEM PROBLEM TROUBLESHOOTING

Lists common heating system problems, their causes, and potential solutions.

REPLACEMENT PARTS LIST

GENERAL SAFETY WARNINGS