American Water Heater AGT-705-PI Water Heater User Manual


 
28
Drawing Number:
Drawing Date:
Pressure Relief Valve
3/4" Ball Valve
3/4" Union
Check Valve
Key
S
Pressure Regulator
Circulating Pump
Solenoid Valve
Boiler Drain Valve
WH-2-B-R
Domestic Hot Water - Backup Storage / Circulation
2 Tankless Water Heaters
Preferred Piping Installation
February 27, 2008
This is not an engineering drawing; it is intended only as a guide and not
as a replacement for professional engineering project drawings. This
drawing is not intended to describe a complete system. It is up to the
contractor or engineer to determine the necessary components and
configuration of the particular system to be installed. The drawing does
not imply compliance with local building code requirements. It is the
responsibility of the engineer or contractor to ensure that the installation is
in accordance with all local building codes. Confer with local building
officials before installation.
Tankless
Water Heater
Tankless
Water Heater
Set water heaters @20°F
above storage tank Aquastat
Storage Tank
(No Burner or
Heating Element)
Submersible
Aquastat
(set @ 20°F below
Tankless Temperature
Setting)
Reference the section on
Pump Sizing for Storage Tank
Application.
Building
Circulation
Pump
Tankless
Equipment List QTY
Tankless Commercial 2
Water Heaters
Pump / Aquastat Control Wire
Cold Water Supply Line
Building Hot Water
Supply Line
Gas Supply
Expansion Tank
Building Hot Water
Return Line