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