Quick Connect Multi System Installation; System Diagram - Noritz GQ-C2859WX-FF US Installation Manual

3.

Quick Connect Multi System Installation

• The Quick Connect Multi System allows the installation of two units together utilizing only the Quick
Connect Cord.
The Quick Connect Cord is 6 ft.(2m) long. Install the units 3-18" (75-457mm) apart from each
other to ensure the cord will be able to reach between the units. (See Typical Plumbing diagram).
(If the distance between the two units is too great, not only will the cord not be able to reach,
but the water temperature may also become unstable because of the difference in pipe length
between the two units).

System Diagram

Cord
Connector
Quick Connect
Cord
Typical Plumbing
Make this distance
as short as possible.
The hot water
temperature will
become unstable as
the pipe length
increases.
Isolation Valve*
* Isolation valves are necessary
for flushing the Heat Exchanger.
They allow for easy flushing
of the system.
Quick Connect Cord
• Insulate the hot water piping to prevent heat loss. Insulate and apply heating materials to the
cold water supply piping to prevent heat loss and freezing of pipes when exposed to excessively
cold temperatures.
4
Cord
Connector
Terminal Block
Remote Controller Cord
Distance on sides
3 - 18 in. (75 - 457 mm)
Pressure
Relief Valve
Union
Gas Valve
Hot Water Supply
Cold Water Supply
Remote Controller
Gas Supply Piping
G
Intake
Exhaust
To drain outlet To drain outlet
* When connecting two units, use only a
single remote controller.
Note: Connect the remote
controller to only one
of the units.
Units must be same
model in order to
quick connect.
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.
The backflow preventer should be placed
upstream of the cold water branch.
Cold Water
Hot Water
Size the piping to allow for the
maximum flow rates of the units.