Installation and Operation Manual
Model HWRS-WH
Hot Water Recirculation System
WARNING
!
This Hot Water Recirculation System does not work with
Tankless water heaters.
For Indoor Use Only.
Please understand this is not an anti-scald device. You
may have some warm water in your cold water line under
the sink where the valve is installed. Once the cold water
line is opened, the warm water will dissipate in a very
short time.
WARNING
!
Read this Manual BEFORE proceeding with
installation.
Failure to read and follow attached instructions or
operating parameters may lead to the product's
failure and possible damage to property. Refer to
enclosed warranty for operating parameters to
ensure proper use with your water supply.
Keep this Manual for future reference.
Pump and Comfort Valve CS-1W
MH26400
NSF/ANSI/CAN 61
NSF/ANSI/CAN 372
Drinking Water System Components
Maximum use temperature: 140°F/60°C
SUPPLY LINES
CIRCULATION PUMP
Contents
Hot Water Recirculation System 1
Introduction 2
Electrical Requirements 2
Operational Parameters 2
Pump Installation
Sensor Valve Installation
3/8" Stop Valve Installation
1/2" Stop Valve Installation
Check Sensor Valve Operation
(Optional)
Parallel Sensor Valve Installation 4
Setting Up The Timer 5
Timer Operation 5
Manual Switch -
Modes of Operation 5
Timer Programming 5
Troubleshooting 6
Limited Warranty 8
IOM-WQ-HWRS-WH
2
3
3
4
4