Installation Guide
56
16 Installation of the Quick Connect
Multi-System
The Quick Connect Multi-System allows the installation of two Water Heaters together utilizing only the Quick
Connect Cord (part #QC-2, sold separately).
3-18 in.
(76-457mm)
6 ft (1.8 m)
Distance on sides
Quick Connect Cord
Pressure Relief
Valve
Isolation Valve
Cold Water
Hot Water
Leave enough clearance around the plumbing
to apply insulation.
It will be necessary to add bends to the piping
to ensure that this clearance is available.
Isolation valves are
necessary for
flushing the Heat
Exchanger.
They allow for easy
flushing of the
system.
The backflow preventer should
be placed upstream of the cold
water branch.
Size the piping to allow for the
maximum flow rates of the
Water Heaters.
Make this distance ( ) as short as
possible. The hot water temperature
will become unstable as the pipe
length increases.
Typical Plumbing
Insulate or apply heating materials to both the cold water supply piping and the hot water supply piping to
prevent freezing during cold weather and to prevent heat loss through the piping.
Remote Controller Cord
Gas Supply
Cold Water Supply
Hot Water
Remote
Controller
External Remote
Terminal Block
Quick Connect
Cord
Cord
Connector
Cord
Connector
System Diagram
• Connect a single Remote Controller to only one of the Water Heaters.
• Water Heaters must be same model or NCC199CDV (GQ-C3259WZ-FF US).
Installation of the Quick Connect Multi-System