Water Heaters (H- 4) - A.O. Smith On Demand 305 Series 100 Design Manual

On-Demand
Water Heater
Primary
Hot Water Supply Line
Key
3/4" Ball Valve
3/4" Union
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
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.
On-Demand On-Demand
Water Heater Water Heater
Sub 1
Domestic Hot Water - Standard Installation
4 On-Demand Water Heaters
Preferred Piping Installation
Check Valve
Pressure Relief Valve
On-Demand
Water Heater
Sub 2 Sub 3
Pressure Regulator
S
Circulating Pump
.
The Contractor or
17
On-Demand
Equipment List
On-Demand
Water Heaters
Electronic Connection *
* Refer to On-Demand Accessories
and Model Applicability for
electronic connection details.
Gas Supply
Cold Water Supply Line
Boiler Drain Valve
Mixing Valve
Solenoid Valve
Drawing Date:
September 07, 2008
Drawing Number:
QTY
4
H-4