A.O. Smith 1850 - Manual

A.O. Smith 1850

A.O. Smith 1850 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – TABLE 1: GAS AND ELECTRICAL CHARACTERISTICS
  • Page 4 – FOREWORD; GROUNDING INSTRUCTIONS
  • Page 5 – Consult the; CAUTION; An adjustable automatic reset limit control, that can be set to; FOR HOT WATER HEATING SYSTEMS (GB models); Due; to the; many various types of systems and operating conditions, a tank; SW1 OFF
  • Page 6 – Do not operate this boiler using the internal high; CIRCULATING PUMP; , the circulator is NOT provided and; SAFETY RELIEF VALVES; INSTALLATION INSTRUCTIONS; REQUIRED ABILITY
  • Page 7 – WARNING; Observing proper clearances will allow service; LEVELLING; FOR SAFE OPERATION, AN AMPLE SUPPLY OF AIR MUST BE
  • Page 8 – Where an exhaust fan is installed in the same room with a boiler,; VENTING; TABLE 6: DIRECT VENT KITS; CONNECTING BOILER TO A COMMON VENT
  • Page 9 – Figure 4. Vent Termination Installation Clearances
  • Page 10 – VENT PRESSURE MUST BE MAINTAINED
  • Page 13 – safety and health of inhabitants.
  • Page 14 – DIRECT VENT VERTICAL AND HORIZONTAL VENTING; HORIZONTAL VENT INSTALLATION; To change the unit to rear exhaust:; Figure 9. Switching from Vertical to Horizontal Venting
  • Page 15 – Table 12: INSTALLATION ITEMS
  • Page 16 – Figure 10. Single or Multiple Boiler Installation Diagram; COOLING PIPING; Wiring should always
  • Page 17 – INTERNAL CONTAMINANTS; HOT WATER SUPPLY BOILER; WATER LINE CONNECTIONS
  • Page 18 – ONE GENESIS (MODEL GW) HOT WATER SUPPLY BOILER WITH HORIZONTAL TANK; DANGER; Figure 11. Single boiler with horizontal tank.
  • Page 19 – ONE GENESIS (MODEL GW) HOT WATER SUPPLY BOILER WITH VERTICAL TANK; Figure 13. Single boiler with vertical tank.
  • Page 20 – able 14. Suggested Pipe Size For Multiple Gas
  • Page 21 – Fittings and unions in the gas line must be metal to metal type.
  • Page 22 – WIRING CONNECTIONS; OPERATION; GENERAL; FILLING AND PURGING FOR HEATING
  • Page 23 – If; MANIFOLD PRESSURE; Nearly instantaneous
  • Page 24 – Lighting Instructions for the G(B/W) 1000 through 2500 models; FOR YOUR SAFETY READ BEFORE OPERATING
  • Page 26 – CONTROL SYSTEM; DESCRIPTION OF MULTI-STAGE FIRING SYSTEM; DIA-SCAN II DISPLAY BOARD OPERATING PROCEDURES; DIP SWITCH CONFIGURATION TABLE
  • Page 30 – Procedure for Setting Pump Delay; The Controller is factory set with a 45 second post; Last Error Mode; All stages will remain running until the set point for a given
  • Page 31 – PREVENTATIVE MAINTENANCE; MAIN BURNERS; Figure 17. Normal Flame Characteristics
  • Page 32 – Allow boiler parts to cool before disassembly.; F (3°C) in the normal temperature rise through the
  • Page 33 – TROUBLESHOOTING; LED
  • Page 35 – NEW BOILER LIMITED WARRANTY
  • Page 36 – REPLACEMENT PARTS
Loading the manual

1

PRINTED IN U.S.A. 2526 0501

COPPER BOILERS FOR

HYDRONIC HEATING AND

HOT WATER SUPPLY

CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS
I N F O R M AT I O N R E L AT I V E T O Y O U R S A F E T Y.
PLEASE READ THOROUGHLY BEFORE INSTALLING
AND USING THIS APPLIANCE.

PART NO. 211257-000 REV. 0

A DIVISION OF A. O. SMITH CORPORATION

EL PASO, TX., MC BEE, SC., RENTON, WA.,

STRATFORD-ONTARIO, VELDHOVEN-THE NETHERLANDS

w w w.hotwater.com

PLACE THESE INSTRUCTIONS ADJACENT TO BOILER AND

NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

•

Installation

•

Operation

•

Maintenance

•

Limited Warranty

Instruction Manual

GB/GW

MODELS

:

1000, 1300, 1500, 1850, 2100, 2500

SERIES 200, 201

WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or loss of life.

Thank Y

ou

for buying this cost

efficient, high recovery unit from

A. O. Smith Water Products Co.

You should thoroughly read and understand this
manual before installation and/or operation of this
boiler. Please pay particular attention to the
important safety and operating instructions as well
as the WARNINGS and CAUTIONS.

CONTENTS

PAGE

ROUGH-IN DIMENSIONS/CAPACITIES ............. 2 - 3
FOREWORD ..................................................... 4 - 5
FEATURES/CONTROLS ................................... 5 - 6
INSTALLATION INSTRUCTIONS ................... 6 - 22
VENTING ....................................................... 8 - 14
SYSTEM INSTALLATION .............................. 15 - 19
HYDRONIC INSTALLATION .......................... 15 - 17
HOT WATER SUPPLY INSTALLATION ......... 17 - 19
GAS CONNECTIONS .................................... 20 - 21
OPERATION ................................................ 22 - 23
LIGHTING AND OPERATING ......................... 24 - 25
CONTROL SYSTEM .................................... 26 - 31
PREVENTATIVE MAINTENANCE ................ 31 - 33
TROUBLE SHOOTING .................................. 33 - 34
LIMITED WARRANTY .......................................... 3 5
WIRING DIAGRAM/SCHEMATIC .................. 36 - 37

•

Do not store or use gasoline or other

flammable vapors and liquids in the
vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

•

Extinguish any open flame.

•

Do not try to light any appliance.

•

Do not touch any electrical switch; do
not use any phone in your building.

•

Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.

•

If you cannot reach your gas supplier,
call the fire department.

•

I n s t a l l a t i o n a n d s e r v i c e m u s t b e
performed by a qualified installer,
service agency or the gas supplier.

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Summary

Page 2 - TABLE 1: GAS AND ELECTRICAL CHARACTERISTICS

2 ROUGH-IN DIMENSIONS Figure 1. IMPORTANT! Refer to "Installation Clearances" section of manual(page 7) for recommended service clearances priorto boiler placement. TOP VIEW LEFT SIDE TABLE 2. ROUGH - IN DIMENSIONS A B C D E F M o d e l I n c h e s c m I n c h e s c m I n c h e s c m I n c h...

Page 4 - FOREWORD; GROUNDING INSTRUCTIONS

4 PRECAUTIONS IF THE UNIT IS EXPOSED TO THE FOLLOWING, DO NOTOPERATE UNTIL ALL CORRECTIVE STEPS HAVE BEEN MADEBY A QUALIFIED SERVICEMAN: 1. EXPOSURE TO FIRE.2. IF DAMAGED.3. FIRING WITHOUT WATER.4. SOOTING. IF THE BOILER HAS BEEN EXPOSED TO FLOODING, IT MUST BEREPLACED. LIQUID PETROLEUM MODELS Boile...

Page 5 - Consult the; CAUTION; An adjustable automatic reset limit control, that can be set to; FOR HOT WATER HEATING SYSTEMS (GB models); Due; to the; many various types of systems and operating conditions, a tank; SW1 OFF

5 Example: A Genesis boiler is rated at 1,300,000 Btu/hr. input at sealevel. At an altitude of 5,000 (1500m), the prejet orifices will decreasethe input rate by 20% (= 4% x 5) to a new rating of 1,040,000 Btu/hr.(= 80% x 1,300,000 Btu/hr.) The input reduction is achieved by theprejet orifices throug...

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