W Ater Pipin G G Uidel Ines - Navien CR-180 Installation Manual

I
Pl umbing
CR Model :
0
7=0REATOR
Nav1eN
Union
Pressure
� e!ief
/
�
Shutoff
Valve
...,.._
Hot Water Supply
NOTICE
: If using mixing valves on the outlet, choose one which prevents cold water
pressure from overcoming hot water line pressure.
The flow rate of hot water may vary when more than two faucets(appliances,
fixtures, etc.) are being used simultaneously.
If a water heater is installed in a closed water supply system, such as one
having a backflow preventer in the cold water supply line, means shall be
provided to control thermal expansion device. Contact the water supplier or
local plumbing inspector on how to control this situation.
Water Piping G u idel i nes
Y-strainer
Pressure
�
Gas Shutoff Valve
...,.._ Gas Supply
...,.._
=
Condensed Drain
Cold Water Supply Hot Water Supply
CR-A Model :
0
ToREATOA
Nav1eN
Union
Relief
/
Shutoff
Valve
...,.._
Cold Water Supply
t
Reci rculation Line
Y-Strainer
Gas Shutoff Valve
...,.._ Gas Supply
...,.._
=
Condensed Drain