NuWhirl CozyHeat CMBC-298 Series Installation instructions

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For use with CMBC-298 or CIHC-300 series
®Electronic Controllers
for Peel and Stick Models
Installation & Operating Manual
NuWhirl Systems Corp | www.nuwhirl.com | 951-817-5600
MANHS REV C 5/9/2018

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PLEASE READ CAREFULLY PRIOR TO
Troubleshooting and Servicing Electrical Equipment
Definitions
WARNING May cause serious injuries or death
CAUTION May cause property damage
For information on NuWhirl Instructions, see:
www.nuwhirl.com/docs/product-instructions.html
When installing and using this electrical equipment, basic safety
precautions should always be followed, including:
IMPORTANT SAFETY INSTRUCTIONS
WARNING Keep dry. Replace control if
exposed to water, moisture or contamination.
WARNING Use and follow these instructions
along with all instructions that have been
provided with your whirlpool bathtub in order
to fully enjoy the bathtub safely.
WARNING Electronic control system
components should be installed as per local
and national Electrical Codes, in a location not
to be subjected to splashing or flooding.
Exposure to water or splashing will void all
product certifications and warranties.
There are no user serviceable parts inside.
Opening, modifying, or tampering with control
system components will void all product
certifications and warranties.
WARNING Risk of electric shock. Connect
only to a ground type receptacle or power
supply junction box protected by a Ground-
Fault Circuit Interrupter (GFCI). Contact a
qualified electrician if you cannot verify that the
power supply is protected by a GFCI. The
GFCI should be tested on a routine basis.
Consult the GFCI manufacturer’s instructions
for correct testing and operation
For electrical connections, see applicable
wiring diagram.
See www.nuwhirl.com/docs/product-
instructions.html
Do not use an extension cord to connect the
product to the electric supply; provide a properly
located receptacle or junction box.
WARNING Failure to install in strict accordance
with each and every instruction above may
compromise the system, which may cause
injury to persons and/or property.
The tub may be supplied from more than one
power source. Before working on any electrical
device, make sure all power to the control
system is off.
Use this unit only for its intended use as
described in this manual. Do not use
attachments not recommended by the
manufacturer. Any improper installation or
misuse of the equipment may result in injury to
the user and will void the warranty.
SAVE THESE INSTRUCTIONS.

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Installation & Operating Instruction Manual
All Pre-Installation and Installation Procedures are
for use by Tub Manufacturers or
Qualied Service Personnel ONLY.
Pre-Installation Preparation………………...……...…..………P.4
Installation Procedure……...……………...……...…..……… P.6
Operations…………….…...……………...……....…..……… P.10
TABLE OF CONTENTS

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A clean, brushed surface is imperative for proper preparation. Before
installing, follow these pre-installation instructions carefully.
1. Inspect Heating Equipment Thoroughly Damage from shipping or
delivery must be reported to the carrier and NuWhirl immediately. Do
not install damaged equipment.
Surface Heaters are tested by the factory prior to shipment. Although
extremely rare, factory defects may happen and are to be reported to
NuWhirl before the equipment is installed.
2. Verify Electrical Specications Check the
heating watts marked on the CRUS UL label on
the back side of the surface heater.
More than one heater may be connected as long as the total wattage
drawn by all heaters does not exceed the watt capacity of the
controller.
WARNING DO NOT alter the provided supply cords or the heater.
3. Clean Underlying Tub Surface. The underlying
area must be clean, dry and free of dust and grease
prior to brushing.
CAUTION Follow the cleaning procedure as provided by the tub or
tub material manufacturer. It is important that proper cleaning
preparation be maintained prior to the installation of the heater
blanket. If the instructions are not followed, proper adhesion may
not be attained and the blanket could loosen from the surface and
result in poor heating to the surface of the tub.
PRE-INSTALLATION PREPARATION

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Installation & Operating Instruction Manual
4. Mark Installation Location for
Surface Brushing Determine the
appropriate location of the heater
underneath the tub and mark
location as necessary. Make sure the
location will allow the heater to be
laid flat without any folding or
bending.
5. Brush Surface Prepare the
underside surface by using a steel
wire brush with a pneumatic or
electric grinder in the area that
the heater will be placed.
WARNING Always wear protective eye goggles and breathing
protection while brushing the underside tub surface.
6. Clean Brushed Area. Wipe the brushed
area with Isopropyl alcohol and be sure
that the surface is completely dry.
7. The heater is ready for installation.

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INSTALLATION INSTRUCTIONS
Before installing, follow the pre-installation instructions on Page 4
carefully. The following steps apply to the peel-and-stick models.
1. Release Adhesive. Remove the
release paper from the back of the
heater. Do not touch or handle the
adhesive side of the heater.
2. Position the
heater into place
and rmly press the
heater to the
surface of the tub.
Ensure the heater is completely flat
without any folds or air gaps.
3. Press the Surface Heater with a
Rubber-Coated Roller from the
center of the heater out to the
edges of the heater in all directions
to create the strong perimeter seal.
Apply at least 15 PSI with the roller.
Note It is important to create a strong seal on the perimeter of the
heater. Bond Strength is dependent upon the amount of adhesive
surface contact developed. Firm application pressure develops better
adhesive contact and helps improve bond strength.
Note Full bond strength of the adhesive will be achieved in 72 hours.
The remaining installation steps, system testing and shipping may be
completed during this period.

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WARNING! To prevent accidental
overheating, DO NOT cover the seat
with any type of insulating material
(e.g. towel, bathrobe, or similar
covering).
Installation & Operating Instruction Manual
Note Once the heater is affixed to the tub, removing or repositioning it
will compromise the adhesive.
If the heater needs to be
repositioned after application,
additional adhesive will be
required for secure adherence.
In this case: Apply 3M 90 Spray
Adhesive to the existing adhesive
(non-insulated side) and repeat steps 2 and 4.
4. Safety Warning Label Place a safety warning label on a prominently
exposed area of the tub which warns users not to cover the heated
areas with any type of insulating material.
Example:

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INSTALLATION INSTRUCTIONS (Continued)
5. Connect Heater to Electronic Controller Connect the surface
heater blanket power cords with the respective outlets located on the
top of the CIMC-298 or CIHC-300 controller.
5A. CIHC-300 Standalone System Installation Option
Multiple Surface Heaters
Max 96 Watts Combined
Heater Blanket Load
To 120 V 15A GFCI
Protected Receptacle
Controller
CIHC-300-01-01-01
CICL-297-01-01-01
Tub Lights x2 Max
LED Cable CCBL-366 Daisy Chained or
CCBL-376 “Y” Splitter
LED Option
Keypad Options
CIDU-252-03-01-01
CIDU-252-03-03-03
Cable CCBL-372

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Installation & Operating Instruction Manual
Note Connect cables to ports as shown. Installation may not require
the use of all connection ports. See instruction manuals
MAN300010101 and MANCMBC298 for complete Standalone and
Master Bath System Installation and Operations respectively.
WARNING The combined wattage of both surface heater
blankets must not exceed watt capacity of the controllers
which are 96 Watts for both.
CAUTION Failure to connect cables to ports as shown, may
damage the control box and its components and void any
warranties.
5B. CMBC-298 Master Bath System Installation Option
Multiple Surface Heaters
Max 96 Watts Combined
Heater Blanket Load
To 120V 15 or 20A GFCI
Protected Receptacle
Microbubble Pump or Blower
Bath Pump
Air Switch Options
LED Option
CICL-297-01-01-01
Tub Lights x2 Max
LED Cable CCBL-366
Daisy Chained or
CCBL-376 “Y” Splitter
Keypad Options
CIDU-252-03-01-01
CIDU-252-03-03-03
Cable CCBL-372
Master Bath
Controller
CMBC-298-series

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OPERATING INSTRUCTIONS
It is recommended to turn CozyHeat on approximately 5-10 minutes
prior to entering the tub. Press the Heater Button on the keypad to
power on the surface heater. The Heater will warm the surface of the
seat and/or back wall. The temperature will increase to a comfortable
level within a 5-10 minute period. The heater will run for a preset
amount of time and will shut off automatically. To turn off CozyHeat
earlier, press the Surface Heater button at any time.
Note Exact automatic shutoff timing varies by controller software
configuration. See instruction manuals MAN300010101, MANCMBC298 or
custom keypad instructions for exact timer details.

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Installation & Operating Instruction Manual
For your records and future reference
please fill in data below:
Manufacturer:
Model:
Serial:
Date of Installation:
RETAIN THIS MANUAL FOR
FUTURE REFERENCE

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NuWhirl Systems Corp | www.nuwhirl.com | 951-817-5600
MANHS REV C 5/9/2018