Noritz IHK-NRCP Installation And Instruction Manual

On Demand Recirculation Installation
and Instruction Manual
CAUTION
Electrical Shock Hazard
Do not turn the power on until electrical wiring is finished. Disconnect the power before servicing.
Failure to do so may result in death or serious injury from electrical shock.
1. About this Kit
NORITZ IHK-NRCP offers the most efficient way to save energy and water by adding Temperature
Sensor and setting on the panel.
This kit is designed to deliver hot water to your entire home with the press of a button (within a few
minutes). There are no standby losses, no stack losses, and no need for extra storage tanks.
This kit can be used only on an external recirculation system with a dedicated return line.
Note> It may take a few minutes depending on the length of the pipe to
prepare hot water to the desired fixture.
■ Items included in the kit
Before installation, verify that all the items below are included .
# Parts
Temperature Sensor
1
(2 ties included)
Wire for Temperature Sensor
2
(4.0 ft [1.2 m])
3 Push Button Switch
4 Instruction
2. Overall installation schematic
Wiring
Throughway
See Detail "A"
Wires for Push Button Switches and Temperature Sensor should be connected to the terminal block
located on the right side of the control panel.
Rev.10/16
Kit# IHK - NRCP
Applicable for NRCP1112/982 series only.
WARNING
Read this manual carefully and failure to follow these
instructions exactly could result in a fire or explosion, serious
bodily injury and/or property damage. Installation must be
performed by a qualified plumber, a licensed gas fitter, or a
professional technician in accordance with all local codes.
Improper installation and operation by an unqualified person
will void the warranty.
Shape
Terminal
Block
Wires
"A" Wiring Throughway
Included
in this kit
Push
Button
Wires
Switch
Aftermarket
Temperature
Sensor
Purchase
3. Installation
1) Schematic diagram
Water
Heater
Temperature
Sensor
Install temperature sensor
as close as possible to the return
2) Wiring
① Turn off both gas and water supply to the water heater. Turn the power off.
② Remove the front cover by loosening the 4 screws. (Figure 1)
Q'ty
1
1
Figure 1
2
③ Connect both push button switch and temperature sensor to the connector on the
terminal block. See Figure 2.
④ Close the front cover with secure 4 screws.
1
3) Wiring for Push Button Switches
When you connect the push button switches to the terminal block, you can run cables from
each switch directly to the terminal block and connect them to the same terminal. Or, you can
run a common branch circuit that runs from the terminal block and connect each switch to the
branch.
Multiple switches connected directly to the same terminal at the terminal block.
Cold Water Line
Hot Water Line
Push Push
Button Button
Switch Switch
#1 #2
Return Line
Return Connection
connection
2 Wires
from
Push Button
Switches
Figure 2
Push
Button
Switch
#3
Terminal
Block
2 Wires
from
Temperature
Sensor