State Industries SBN85 390 (A) manual GAS Water Heater Service Handbook Rules for Good Venting

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SBN71-120 thru 85-390, SBD30-150/199 TANK TYPE COMMERCIAL

GAS WATER HEATER SERVICE HANDBOOK

9 RULES FOR GOOD VENTING

VENT PIPE

VENT

CONNECTOR

1.The vent pipe should ALWAYS be the same size as the outlet of the draft hood or factory supplied vent reducer.

Model SBN71-120 is supplied with a 6” to 5” reducer.

3. In some cases it may be necessary to run a vent larger than the vent connector.

2. The diameter of a vent pipe should NEVER be reduced, no matter what the circumstances.

4. Take the maximum vertical rise (x) possible immediately above the draft hood.

State Water Heaters	20	Technical Training Department
Ashland City, Tennessee © 2007

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Contents

SandBlaster Table of Contents No Igniter Operation GAS Water Heater Service Handbook Qualifications Tools RequiredCommercial Tank Type GAS Model Number Break Down TOP and Front Views of Minimum Clearances to Combustibles Model Number Right Side Left Side Back D Ceiling SBN71-120 thru 85-390, SBD30-150/199 Tank Type Commercial Insufficient Makeup AIR Negative AIR Pressure Square Inch PER AIR for Combustion Flammable Items GAS Water Heater Service Handbook Contaminated AIRInlet View TOP View GAS Water Heater Service Handbook GAS ValveOutlet View Venting Multiple Category I GAS Water Heaters GAS Water Heater Service Handbook VentingMultiple Gas Fired Tank-Type Heaters Model SBN80-180 SBN100-199 SBN100-200 SBD30-199 Model SBN100-250 Model SBN Model SBN 85-366NE, SBN 85-390NE Sequence Vent Size Area Square Inches 113 154 201 254 GAS Water Heater Service Handbook Rules for Good Venting GAS Water Heater Service Handbook Rules for Good Venting Horizontal Elements Limited to 75% of Total Vertical Height Models SBN SBDSBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial HSI GAS Water Heater Service Handbook Wiring Diagram SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial GAS Water Heater Service Handbook PRE-SERVICE Check List Then TestConditions GAS Water Heater Service Handbook Test 2 Polarity Check Ohms Ohms Resistance Table Water Heater Control Thermostat 120 VAC Check of Blower Prover/Low Gas Pressure Circuit No Ignitor Operation Test Ignitor Heats No Main Burner No Main BurnerMeter reads 0 or Main Burner Ignition for Less than 5 Seconds Water Temperature Circuit Check Continuity SBN71-120 thru SBN85-390, SBD30-150/199 Tank Type Commercial Parts SBN71-120 thru 85-390 series GAS Water Heater Service Handbook GAS Water Heater Service Handbook GAS Water Heater Service Handbook GAS Water Heater Service Handbook GAS Water Heater Service Handbook Parts SBD30-150/199NE GAS Water Heater Service Handbook Commercial