A.O. Smith 705 Series 100, 505 Series 100, 305 Series 100, 186965-001 manual Pump Sizing for

Models: 705 Series 100 186965-001 505 Series 100 305 Series 100

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On-Demand

 

Equipment List

QTY

On-Demand

6

Water Heaters

 

Supply Line

 

 

 

 

 

 

 

On-Demand

On-Demand

On-Demand

On-Demand

On-Demand

On-Demand

Expansion

Water Heater

Water Heater

Water Heater

Water Heater

Water Heater

Water Heater

 

 

 

 

 

 

Tank

 

 

 

 

 

 

 

 

 

 

 

 

Set water Heaters

 

 

 

 

 

 

@ 20°F above storage

 

 

 

 

 

 

tank Aquastat

Storage Tank

 

 

 

 

 

 

(No Burner or

 

 

 

 

 

Gas Supply

 

 

 

 

 

 

Heating Element)

 

 

 

 

 

 

Submersible

 

 

 

 

 

Reference the

Aquastat

 

 

 

 

 

section on

(set @ 20°F below On-

 

 

 

 

 

Pump Sizing for

Demand Temperature

 

 

 

 

 

Storage Tank

Setting)

 

 

 

 

 

Application.

 

 

 

 

 

 

Cold Water

 

 

 

Pump / Aquastat Control Wire

 

Supply Line

Expansion

Tank

Building Hot Water

Return Line

Building

Circulation

Pump

Domestic Hot Water - Backup Storage / Circulation

6 On-Demand Water Heaters

Preferred Piping Installation

Key

3/4" Ball Valve

3/4" Union

Check Valve

Pressure Relief Valve

Pressure Regulator

Circulating Pump

S

Boiler Drain Valve

Solenoid Valve

Mixing Valve

NOTE: This drawing is not intended to describe a complete system and is not a replacement for a pro- fessional engineering drawing. It is intended only as a guide and does not imply compliance with local building code requirements. Confer with local building officials before installation. The Contractor or engineer is to determine the necessary components and configuration of the particular system to be in- stalled. It is the responsibility of the engineer or contractor to ensure that the installation is in accordance with all local building codes.

Drawing Date:

September 07, 2008

Drawing Number:

H-6-TC

37

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A.O. Smith 705 Series 100, 505 Series 100, 305 Series 100, 186965-001 manual Pump Sizing for