WhisperKOOL Platinum Mini
Mini Split
TECH MANUAL
The Coolest Thing In Wine Storage
MPS 101713
We manufacture, test and certify 100% of our wine cooling units in
the USA. By sourcing the best components and closely controlling our
manufacturing processes, we can assure the highest-quality, lowest
defect manufacturing rates in the industry.
Copyright © 2012. WhisperKOOL. All rights reserved.
This manual, the product design, and the design concepts are copyrighted by WhisperKOOL, with all rights reserved. Your rights
with regard to the hardware and manual are subject to the restrictions and limitations imposed by the copyright laws of the
United States of America. Under copyright laws, this manual may not be copied, reproduced, translated, transmitted, or reduced
to any printed or electronic medium or to any machine-readable form, for any purpose, in whole or in part, without the written
consent of WhisperKOOL.
Every effort has been made to ensure that the information in this manual is accurate. WhisperKOOL is not responsible for printing
or clerical errors.
WhisperKOOL reserves the right to make corrections or improvements to the information provided and to the related hardware at
any time, without notice.
Vinothèque and WhisperKOOL are registered trademarks, and ECE is a trademark of WhisperKOOL. All rights reserved.
Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a
recommendation. WhisperKOOL assumes no liability with regard to the performance or use of these products.
10.17.13
MPS 101713
TABLE OF CONTENTS
Quick Reference Guide
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Controller Layout & Specifications. . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Receiving & Inspecting The System. . . . . . . . . . . . . . . . . . . . . . . . . 5
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing the Wine Cellar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mini Split Evaporator Unit Internal Quick Reference Guide. 10
Preparing & Installing the Evaporator Unit (Fan Coil Unit). . 11
Installing the Evaporator Unit (Fan Coil Unit). . . . . . . . . . . . . . . 13
Active Humidity Option Over View . . . . . . . . . . . . . . . . . . . . . . . . . 17
Humidistat Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mini-Split Evaporator Unit (Fan Coil Unit) Terminal Board. . 21
Preparing the Condensing Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mini-Split Condenser Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . 23
Line Set Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Installing the Condensing Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Controller Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Technical Assistance & Accessories. . . . . . . . . . . . . . . . . . . . . . . . . 36
WhisperKOOL requires that a certified HVAC-R technician install, Pipe, Evacuate, Charge, Start and Test all split systems.
A Nate Certification is recomended. Please take a moment to review state and city building codes to ensure the safe and
proper installation of the system.
Read, understand and comply with the unit’s installation manual, and piping diagrams.
www.whisperkool.com | Page 1
QUICK REFERENCE GUIDE
Wall Mounted Mini Split Evaporator Unit (Fan Coil Unit) Front / Side View
Evaporator Unit (Fan Coil Unit)
Controller
Filter Grille
Evaporator Unit (Fan Coil Unit) Rear / Side View
Mounting Key Hole (X4)
THROUGH THE WALL
Option 1
Knock Out For Wiring
Knock Out For Suction Line
Knock Out For Liquid Line
Knock Out For Drain Line
Circular Connection
Mounting Location
INSIDE CELLAR
Option 2
Knock Out For Drain Line
Knock Out For Liquid Line
Knock Out For Suction Line
Knock Out For Wiring
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MPS 101713
QUICK REFERENCE GUIDE
Controller Layout
Refer to page 28 for complete listing of buttons and symbols.
Menu Navigation
& Value Increase
*Press and hold
to manually enter
anti-frost mode.
Power On/Off
(hold for approx. 3 seconds)
& Escape
Probe Values &
Alarm Folder
Menu Navigation
& Value Decrease
*Press and hold to
enter the parameter
menu.
Compressor On
Alarm is Present
Unit is in Anti-Frost Mode
Temperature Measurement
Fans are On
Mini Evaporator Unit
(Fan Coil Unit)
Model
Cellar Size (cu. ft.)
500
Dimensions
20”w x 10.5”h x 13”d
BTUh with 90° air entering
the condenser coil.
11.5”w x 9.9”h x 16”d
1540
99
CFM
Refrigerant
190
R-134a
Condensing Unit HP
1/5
Power Requirements
Voltage Rating
Mini Condenser
(Air Cooled Condensing Unit)
Hard Wire
Plug In
115V or 230V - This unit should not be installed on any circuits that also power a heavy load
such as a refrigerator, room air conditioner, etc.
Weight (lbs)
25
41
AMPS (Starting/Running)
2/1
11/3.8
dBA
51
65
Line Set
Suction Line 3/8” od. Liquid Line 1/4” od
Drainline
1/2”
Installation
Evaporator Unit (Fan Coil Unit) is installed in the cellar. The Condensing Unit is installed up
to 100 line feet away and in accordance with the installation specifications found in the Tech
Manual.
Thermostat
Digital Control Display
Temp. Delta
55°F temperature differential
(maintains proper cellar temperature when exhaust environment does not exceed 110°F)
Warranty
2 year parts and labor
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INTRODUCTION
Customer Service
Thank you for purchasing a WhisperKOOL cooling system. We strive to provide the highest quality products and the
best possible customer service. If you have any questions about your system, please call us at 1-800-343-9463 or visit
WhisperKOOL.com.
Using the Manual
This Owners Manual is intended to assist in the proper maintenance of the cooling system. In order to ensure the
longevity of your cooling unit, the equipment should be installed as outlined in the Technician’s Manual. It is also vital
to establish a proper care and maintenance schedule. Please read and review this manual carefully and keep it for
future reference.
What Is the WhisperKOOL Cooling System?
The WhisperKOOL cooling system is a specialized refrigeration system designed for one purpose only: to maintain
the optimal temperature and humidity levels conducive to the proper storage and aging of fine wines. This system
produces minimal in-cellar noise and has the most lenient exhaust requirements. An exterior housing is required for
outdoor condensing unit installations.
How Does the Cooling System Work?
Similar to the air conditioning systems used for homes, the Evaporator Unit (Fan Coil Unit) and Condensing units
are installed in separate locations and are connected by a refrigerant line set. The evaporator portion is commonly
installed in the wine cellar, with the condensing unit located either outside or in a remote indoor location that is
ventilated. An exterior housing is required for outdoor condensing unit installations.
Temperature Setting
The WhisperKOOL system can be set at any temperature within the acceptable wine-aging range of 50°F to 70°F. It
is designed to cool up to 55°F cooler than the ambient temperature of the space to which the condensing unit is
installed.
WARRANTY REGISTRATION
In order to activate the warranty of your system, the Verification and Operational
Documentation must be completed by the certified refrigeration technician
installing your system and submit via mail, fax, or e-mail.
Mail to:
WhisperKOOL
ATTN: Warranty Registration
1738 E. Alpine Avenue
Stockton, CA 95205-2505
USA
Page 4 | 1-800-343-9463
Fax to:
209.466.4606
OR
Scan and email to:
[email protected]
OR
MPS 101713
RECEIVING & INSPECTING THE SYSTEM
Receiving and Inspecting the System
• Lift only at the designated hand hold locations on the shipping container or fully support the unit from
underneath. A shipment may include one or more boxes containing accessories.
• Before opening the container, inspect the packaging for any obvious signs of damage or mishandling.
• Write any discrepancy or visual damage on the Bill of Lading before signing.
• Allow the condensing unit to sit 24 hours prior to start up. The Condensing Unit can be placed in the
installation location, piped and evacuated during this time.
Note: WhisperKOOL units are manufactured in the USA and tested prior to shipment.
Review the Packing Slip to Verify Contents
• Check the model number to ensure it is correct.
• Check that all factory options ordered are listed.
If any items listed on the packing slip do not match your order information,
contact WhisperKOOL Customer Service immediately.
Check the Box for the following contents:
Main Evaporator Box
(1) 12 Foot Bottle Probe
(4) 2” #8 Hex Head Screws
(1) 10 FT. 1/2”Drain Line
(1) ¼” Sight Glass
(1) ¼” Filter Drier
(1) Power Cord Strain Relief (located
inside the Evaporator Unit)
(1) Split System Warranty Checklist
(1) 10” Piece of Cork Tape
(1) Split System Owner’s Manual
(1) Split System Tech Manual
(1) Unit Specific Installation Guide
(1) Evaporator Mounting Template
(1) Platinum Mini Split Evaporator Unit ( Fan Coil Unit)
Main Condensing Unit Box:
(1) Condensing Unit
Please leave the unit in its original box until you are ready for installation. This will allow you to move the product
safely without damaging it. When you are ready to remove the product from the box, refer to the installation
instructions.
TIP: Save your box and all packaging materials. They provide the only safe means of transporting/shipping the unit.
www.whisperkool.com | Page 5
BEFORE YOU START
1. Inspect all components prior to installation. If damage is found, please contact your distributor or WhisperKOOL
Customer Service at 1.800.343.9463.
2. The Condensing Unit requires a dedicated 115-volt 20-amp circuit. Use a surge protector with the unit. Do not
use a GFI (Ground Fault Interrupter) line.
3. It is REQUIRED to install a drain line to remove condensation from the Evaporator Unit (Fan Coil Unit).
4. The system is intended for use in properly designed and constructed wine cellars. Hire a professional wine
storage consultant with a valid contractor’s license to build your wine cellar.
5. WhisperKOOL requires that all Split Systems are installed by a certified HVAC-R technician only, Nate or equivalent is
recommended.
6. Warranty is not active until a Warranty Checklist has been received, reviewed, and approved.
If you encounter a problem with your WhisperKOOL system, please refer to the Troubleshooting Guide on page 16.
If you have any further questions, concerns, or need assistance, please contact WhisperKOOL’s Customer Service at
1.800.343.9463. Please be sure all testing has been completed prior to contacting Customer Service. Please have your
results ready for your representative.
Page 6 | 1-800-343-9463
MPS 101713
PREPARING THE WINE CELLAR
The performance and life of your system is contingent upon the
steps you take in preparing the wine cellar.
Note: Improperly preparing your enclosure or incorrectly installing your
unit may cause unit failure, leaking of condensation, and other negative side effects.
IT IS HIGHLY RECOMMENDED THAT YOU OBTAIN THE ASSISTANCE
OF A WINE STORAGE PROFESSIONAL.
Wine storage professionals work with licensed contractors, refrigeration technicians, and racking companies to build
well-insulated, beautiful, and protective wine cellars. WhisperKOOL has put together some useful tips to assist in the
installation process. Our recommendations are meant to act as a guide in the process of building a proper enclosure.
Your intended location may have specific needs that we do not address.
Wall & Ceiling Framing
Build wine cellar walls using standard 2x4 or 2x6 construction methods and ceiling joists following the guidelines of
local and state codes in your area. As a general rule, the thicker the walls and the higher the insulation value in your
cellar, the better it will be at maintaining a consistent temperature.
Insulation
Insulation is REQUIRED with the use of the WhisperKOOL product. Standard fiberglass or rigid foam insulation is
normally used in cellar construction or, in some cases, “blown-in” insulation is used. It is very important that all walls
and ceilings are insulated to keep the cellar temperature as consistent as possible during the summer and winter
months. The R-value, or quality of insulation, is determined by the rate at which heat passes through the insulation.
The higher the R-value, the more resistant the insulation is to conducting heat. Using higher R-values in insulation will
lower your operating costs and unit run time. (R-13 minimum, R-19 recommended, R-30 for ceiling and exterior walls.)
Vapor Barrier
Water vapor creates its own pressure, separate from the air pressure, and will intrude into colder/drier areas. A vapor
barrier is REQUIRED to prevent the intrusion of water vapor so that the cellar can be kept at the correct temperature
and humidity. 6 mm plastic sheeting (recommended) should be applied to the warm side of the cellar walls. The
vapor barrier must also be applied to the outside walls and ceiling. If it is impossible to reach the outside, then the
plastic must be applied from within the cellar. The most common method is to wrap the entire interior, leaving the
plastic loose in the stud cavity so the insulation can be placed between each stud. All of the walls and ceiling must be
wrapped in plastic for a complete vapor barrier.
In areas of high humidity, such as Southern and Gulf States, the vapor barrier will prevent infiltration of warm moist
air. The moist air can cause mold to form, and standing water in drain pans promote microbial and fungal growth that
cause unpleasant odors and indoor air quality problems. If mold is found, remove it immediately and sanitize that
portion of the unit. Note: High humidity significantly increases the heat load on the cooling system.
Any break in the vapor barriers (cut, nail hole, over-lapping, etc) will allow a moisture leak and must be sealed. Electric
conduit is a “duct” for vapor to travel in. The conduit should be caulked and sealed on the warm air end.
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Unobstructed Airflow
Unobstructed airflow to and from the Evaporator Unit (Fan Coil Unit) and Condensing Unit is critical for the
overall performance and life-span. A minimum three-foot clearance (five foot is ideal) area is crucial. The air the fans
blow needs to circulate and either dissipate or absorb heat from the space, the more air to exchange the more efficient
the system will operate.
Note: Avoid attempting to camouflage the unit. This will restrict airflow and thus the systems ability to work
efficiently.
Keep Clear
Wine Cellar
Mounting the Evaporator Unit (Fan Coil Unit)
The Evaporator Unit (Fan Coil Unit) must be mounted within 18“ of the top of the room in order to achieve
sufficient cooling. As the room cools down, the warm air will rise to the ceiling. Mounting the unit high in the
room will contribute to consistently cool environment by capturing the warm air and replacing it with cool air.
Mounting the unit low in the room will result in a temperature variation in the room due to the unit’s inability to
draw warm air from the ceiling of the cellar to the unit itself, and cold air settling to the floor.
Door and Door Seal
An exterior grade (1 3/4”) door must be installed as a cellar
door. It is essential that weather stripping is attached to
all 4 sides of the doorjamb. A bottom “sweep” or threshold
is also required. The door must have a very good vapor
seal to prevent warmer moist air from leaking into the
cellar. One of the most common problems with cooling
systems running continually is due to the door not sealing
properly. In cases where glass doors are used and the
room size is close to the recommended system size,
the next larger size WhisperKOOL system should be
used. This will compensate for the insulation loss due to
the lower insulating rating of glass.
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MPS 101713
Ventilation
The necessity of dissipating heat away from the condensing unit is critical to the performance and cannot be
overstated. As the system operates and cools, a greater amount of heat is generated on the condensing side of the
system. Adequate ventilation is required in order to dissipate heat away from the condensing unit. If ventilation is
inadequate, the exhaust will heat up the area or room and adversely affect the systems ability to cool. In some cases, it
may be advisable to install a vent fan to dissipate heat within the exhaust area on the condensing side of the system.
However, you must have a fresh air inlet as well.
Note: If you are unsure about having adequate ventilation in your install location, please
contact us to assess your specific installation at [email protected] or 1.800.343.9463.
Evaporator Unit
( Fan Coil Unit)
BACK - EXHAUST SIDE
FRONT - WINE CELLAR
Condensing Unit
Exterior Cellar Wall
Ambient Temperature Factor
The cooling system has the ability to cool a wine cellar efficiently to 55°F as long as the ambient temperature of the
area that it is exhausting to does not exceed 110°F. Therefore, you want to exhaust the condensing unit in a space which
will not exceed 110°F. Otherwise the system will not have the capacity to keep the wine at a desirable 55°F.
Warning, allowing your system to operate in high ambient temperatures for
extended periods of time will greatly decrease the life of your system and void
your warranty. The cooler the temperature of the air entering the condenser coil
the more cooling capacity the system has. The less heat gain through the common
wall, the less the electricity consumption.
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MINI SPLIT EVAPORATOR UNIT INTERNAL QUICK REFERENCE GUIDE
BLOWER
REFRIGERANT
SOLENOID COIL
TXV SENSING
BULB
TXV
Page 10 | 1-800-343-9463
MPS 101713
PREPARING AND INSTALLING THE
EVAPORATOR UNIT (FAN COIL UNIT)
Required Tools:
•
•
•
Drill
5/32” Drill Bit
1/4” Socket Drill Bit
•
•
•
1/4” Wrench
•
Phillips Head Screwdriver •
Tape Measure
•
Brazing Torch
Drywall Saw
Ladder
•
•
•
Level
Pliers
Pencil
DRAIN PAN
1. Pull apart the Filter Grille from the Evaporator
Unit.
2. Cut the Zip Tie holding the circular connectors
and wires on the rear left corner of the interior of
the unit.
3. Unscrew the nut attached to the Circular
Connector (Bottle Probe Input.)
4. Install the Circular Connector (Bottle Probe
Input) in The hole located at the bottom of the
housing.
HOLE FOR CIRCULAR CONNECTOR
(BOTTLE PROBE INPUT)
CIRCULAR CONNECTOR/
BOTTLE PROBE INPUT
RUBBER WASHER NOTE: From a frontal perspective, the Circular
Connector is located in the rear-left corner of the
bottom of the unit.
UNIT PANEL
NUT
5. Secure the Circular Connector (Bottle Probe
Input) to the unit using the provided nut (the
Rubber Washer should remain inside the unit).
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PREPARING AND INSTALLING THE
EVAPORATOR UNIT (FAN COIL UNIT)
Length To Extend To Desired Tee Location
3”
6. Cut the supplied Drain Tubing at a length long enough to extend from the Drain Pan to the desired Barbed
Tee location and a second piece 3 inches long.
Power
3/8” Suction
7. Depending on the desired installation, remove the rear
or bottom knockouts for the Line Set, Drain Line and Power
Cord.
1/4” Liquid
Drain
Page 12 | 1-800-343-9463
8. Using a 5/32” Drill Bit on a drill, from the outside of the
unit cut holes through the unit’s insulation for the line set
and drain line.
MPS 101713
INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT)
Note: The evaporator is designed to be mounted on two standard 16” spaced wall studs.
1. Locate two desired wall studs. Mark center lines for the studs vertically on the wall (16 inches apart)
followed by a level horizontal line at your desired height.
Note: The top of the unit needs to be installed at a
minimum of 6 inches from the ceiling and no further
than 18 inches from the ceiling.
2. Place the installation template on the wall lining up
the vertical lines through the sight slots.
3. Mark through the indicated Mounting Screw holes
and location for the Access Hole.
4. Set Installation Template aside.
1/16”
WALL
STUD
5. Install the supplied four 2” #8
Hex Head Screws into the marked
mounting screw locations leaving 1/8”
between the wall surface and screw
head.
6. Cut out the Access Hole using a drywall saw or desired method. Be sure
to clear all debris and insulation.
7. The wall is now ready for installation. Place the prepared unit below the
install location.
Note: During installation WhisperKOOL recommends
elevating the unit close to the install height.
8. Raise the evaporator to the installation location. Align the rear key holes
with the mounting screws and mount the unit.
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INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT)
9. Using a 1/4” wrench or socket and tighten the
accessible mounting screws on the left hand side
of the interior of the unit.
°F
Note: For ease of installation remove the top
panel after securing unit to wall.
10. Remove the Line Set Caps followed by
routing the 3/8” suction line and 1/4” liquid line
into the unit and braze.
Note: Angle the flame up and away from any
electrical and insulation while brazing inside of
the unit.
°F
11. Route power supply wires into the unit through
the power knockout and install the supplied strain
relief.
12. Connect power supply wires to the pre-installed
butt splice connectors located inside of the unit
(Hot=Black, Neutral=White, Ground= Green).
°F
Page 14 | 1-800-343-9463
MPS 101713
INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT): DRAIN LINE
Condensation Drain Line
The condensation drain line tube is used to remove excess condensation from the Evaporator Unit ( Fan Coil Unit) to a proper
discharge location. It is important that the drain line tube is properly connected and used to prevent leakage and other problems
associated with excess condensation.
Failure to use the condensation drain line tube will void the warranty on the unit.
Drain Line
All systems come with a drain line for additional removal of excessive condensate. It is mandatory to install the drain line
whether it leads through the wall and out of the cellar or remains inside the cellar. During operation, the cooling system will strip
excess water from the air in order to maintain the proper level of humidity within the cellar. However in extreme humidity,
additional condensate will be removed. Thus the drain line will prevent overflow and leaking by allowing for discharge of the
additional condensate.
1. Depending on your desired installation, use the barbed elbow as shown in Figure 1 or Figure 2 to route the Drain Line from
the Drain Pan to the exterior of the unit.
2. Insert the middle barb of the barbed tee fitting into to the end of the drain line coming from the evaporator. Rotate fitting so
tee is in the orientation shown in the diagram on the right. Connect the three inch piece to the barb on top. Connect the
remaining “long” piece of drain tubing to the bottom barb of the tee.
NOTE: The fitting should be placed vertical with the three inch cut out facing up.
NOTE: Using the barbed tee as shown in Figure 2 and Figure 3 is recommended.
THROUGH THE WALL DRAIN LINE
OPTION 1
NOTE: The fitting should be
placed vertical with the three
inch cut out facing up.
INSIDE CELLAR DRAIN LINE
OPTION 2
°F
Figure 1
°F
Figure 3
3”
WRONG: Drain line is under water.
WALL MOUNT CLAMP
Failure to install the drain line
voids the warranty.
To prevent mold from growing,
allow the drain line to hang
above the water line.
CELLAR WALL
BARBED TEE
Figure 2
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NOTES
Page 16 | 1-800-343-9463
MPS 101713
ACTIVE HUMIDITY OPTION OVERVIEW
ACTIVE HUMIDITY SPECIFICATIONS
Power Consumption
0.2 amps @ 120V/60 Hz
dBA
TBD
Humidistat Range
30-90% RH
Humidistat Accuracy
± 1%
Humidistat Adjustment
Increments
1%
Water Supply Feed Rate
0.63 gph @ 40 psi
Accessory Included with Active Humidity Option:
(1) 25 ft. Humidistat Cable
(1) Dayton Humidistat
Use of the Active Humidity Option
Humidity may fluctuate in the wine cellar. The Active Humidity Option stabilizes the environment by adding moisture when the
wine cellar is becoming dry. Using a humidistat and a water source, the Active Humidity Option is able to regulate and establish a
humid environment suitable for wine storage.
Note: The ideal humidity of a wine cellar is between 50-70%.
General Active Humidity Option Recommendations
•
•
•
•
Water source needs to have at least 40 psi.
Water tubbing size: 1/4” O.D
Water source should be tested for content and characteristics.
In areas that are known to have hard water, the use of a Water-Softener System is required.
Note: Failure to install a Water-Softener or a Filtration system will allow an
excessive particle residue buildup and may lead to system failure.
•
•
•
•
Even if the area is not known to have hard water, the use of a Filtration System (Particle Filter) is required.
Clean the evaporator coil every 3 months to remove particle residue buildup.
It might be best to use a Self-Piercing Saddle Valve as a simple connection to a water source.
Clean or replace the Misting Nozzle every 12 months.
Do not allow water leakage inside of the Unit.
TUBING OUTLET
OPTIONAL INSERT FOR
PLASTIC TUBING
MISTING NOZZLE
WATER SUPPLY
Self-Piercing Saddle Valve
Install a Self-Piercing Saddle Valve to a near by water supply for
simple connection to a water source as shown in Figure 1.
Water Flow Order
• The water supply should pass through either
a Water-Softener or a Filtration system before
reaching the unit as shown in Figure 2.
• Route a 1/4” Copper, Pex or equivalent tubing from
the water source and connect to the water inlet
fitting on the unit as shown in Figure 3.
• Turn on the water and check for leaks.
Figure 1
COOLING UNIT
FILTRATION SYSTEM
Figure 2
Figure 3
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HUMIDISTAT INSTALLATION
Routing the Wiring
1. Plug the circular connector from the humidistat cable into the circular connector on the unit as shown in
Figure 1.
2. Route the wire from the unit to the desired humidistat location.
Figure 1
Removing the Cover
1. Move both slide controls to the bottom position.
2. Use a screwdriver to loosen the screws at the bottom of the humidistat as shown in Figure 2.
Slide controls
Figure 3
3. Carefully remove the cover as shown in figure Figure 3.
Figure 2
Mounting Without a Wall Mount Plate
1. Make sure the humidistat electrical is unplugged before installing the unit.
2. Position the back half of the humidistat cabinet on the wall or junction box and ensure it is level and covers the
junction box completely.
3. Pull the electrical wires through the hole at the terminal block of the humidistat.
4. Drill holes in the wall through the 2 mounting holes in the back of the humidistat cabinet as shown in Figure 4
and insert anchors into the holes.
5. Fasten the humidistat to the wall with screws through the mounting holes.
Screws
Terminal Block
Figure 4
Page 18 | 1-800-343-9463
MPS 101713
HUMIDISTAT INSTALLATION
Wall anchors
Mounting With a Wall Mount Plate
1. Make sure the humidistat is unplugged before installing the unit.
2. Position the wall mount plate on the wall or junction box and
ensure the plate is level and covers the junction box completely.
3. Pull the electrical wires through the hole in the wall mount plate.
4. Drill holes in the wall through the 2 mounting holes in the back of
the wall plate as shown in Figure 5 and insert anchors into the holes.
5. Pull the electrical wires through the hole at the terminal block.
6. Fasten the wall plate with 2 screws through the mounting holes.
7. Then fasten the humidistat to the wall plate with screws through the
mounting holes.
Electrical Connection
1. Connect the electrical wires to the corresponding terminals on the
HUMIDISTAT
2
Figure 6
Adjustment
Shaft
Figure 7 - Make sure the Dial is Vertical and the
7
6
5
N
WHITE
1
RED
L
COOLING UNIT
Humidistat
Dial
Figure 5
BLACK
terminal block following the circuit diagram inside the top cover of the
unit. See Figure 6
2. Connect the white wire to the N terminal, the red wire to the 1
terminal and the black wire to the L terminal on the humidistat.
Reattaching the Cover
1. Move both slide controls to the bottom position.
2. Align the humidistat adjustment shaft horizontally as
Adjustment Shaft is Horizontal
shown in Figure 7.
3. In order for the humidistat dial to fit on the shaft, it must
be aligned with the pointer above the dial.
4. Carefully attach the top cover and ensure the cover locks
into place by pushing down on the top and then pushing
inward toward the wall.
5. Attach the screws again at the bottom of the cover and tighten into place as
shown in Figure 8.
6. Check that the adjustment dial and slide controls can be moved smoothly,
otherwise remove the cover and check the alignment of the dial and the
adjustment shaft and slide controls.
Correct Humidistat Settings
1. Rotate the dial to the desired humidity level.
2. Set the bottom selector switch to the Humid setting.
3. Set the top selector switch to the Hi setting.
Figure 8
www.whisperkool.com | Page 19
INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT)
13. Connect the Bottle Probe.
Note: Reinstall top Panel if removed.
14. Reinstall the access panel removed in step 1 of Evaporator Preparation
by pushing the four corners into place.
15. Plug in the evaporator.
Page 20 | 1-800-343-9463
MPS 101713
MINI-SPLIT EVAPORATOR UNIT (FAN COIL UNIT)
TERMINAL BOARD
Black
Green
1
4
4
Blue
White
1
Black
1 2 3 4 5 6 7
White
8 9 10 11
Black
White
Red
www.whisperkool.com | Page 21
PREPARING THE CONDENSING UNIT
Electrical Needs
The Condensing Unit requires a dedicated 115-volt 20-amp circuit. The unit draws a large inrush current for about
one second the instant the compressor starts. With a dedicated circuit and circuit breaker, the condensing unit will
have sufficient power for effective operation. (The compressor is controlled by a low pressure switch mounted on
the condensing unit. This feature eliminates the need for wiring between the Evaporator Unit (Fan Coil Unit) and the
Condensing Unit.)
• Ensure the voltage supplied matches the rating specified on the unit spec label.
• Provide a non GFI dedicated circuit and an appropriate outlet for the Evaporator Unit’s (Fan Coil Unit) power cord.
• Provide a dedicated circuit and circuit breaker for the Condensing Unit.
• Provide a weatherproof disconnect for Condensing Units located outside.
As with all sensitive electrical equipment, damage may be caused in the event of power surges and spikes. WhisperKOOL
recommends plugging the unit into a surge protector, or power conditioner, in order to protect your system. As outlined
in our terms & conditions, power surges and spikes are not covered under warranty.
WE RECOMMEND THAT YOU DO NOT USE A GROUND FAULT INTERRUPTER (GFI) WITH THIS PRODUCT.
In case the system should lose power, check the home/main circuit breaker. If the system does not respond properly, refer
to the Troubleshooting section on page 30.
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
POWER CORD
SUCTION LINE
SERVICE VALVE
For the equipment warranty to be valid, WhisperKOOL requires that the installation is performed by a certified
HVAC-R technician (Nate certified technician is recommended) per the specifications outlined in this technician’s
manual. The technician shall be required to be equipped with the proper tools of the trade including: refrigerant 134a,
brazing equipment, dry Nitrogen, an accurate manifold gauge set (digital preferred), plus a four valve manifold set
for evacuation, digital micron gauge, digital scale, deep vacuum pump and accurate digital thermometers. Without
the proper equipment, a professional job cannot be accomplished. Evidence of the certified tech’s NATE# or other
certification is required.
Page 22 | 1-800-343-9463
MPS 101713
MINI-SPLIT CONDENSER WIRING DIAGRAM
For Systems Manufactured 12-20-12 or Later
LP
FC
BLACK
BLUE
WHITE
GREEN
DOB
1
3
NC
C
NO
COMP CONTACTOR
CC
HEATER
POWER
115v 60 HZ
ENCLOSURE
COMP
1
S
C
2
R
OL
START CAPACITOR
CURRENT RELAY
COND.
FAN
LP
DOB
www.whisperkool.com | Page 23
ND.
AN
H
LP
3
DOB
POWER
115v 60 HZ
LP
LO PRESS SWITCH
DOB DELAY ON BREAK
N
8
NC
NO
0
7
6
COMP CONTACTOR
C
1
R
2
CC HEATER
1
S
C
OL
COMPRESSOR
COND.
FAN CYCLING
PRESSURE SWITCH FAN
MPS 101713
Page 24 | 1-800-343-9463
T CAPACITOR
For Systems Manufactured 12-20-12 or Later
RRENT RELAY
MINI-SPLIT CONDENSER WIRING DIAGRAM
PREPARING THE CONDENSING UNIT (continued)
Installing the Condensing Unit
The condensing unit can be installed inside a well ventilated area of the home, but it is typically installed outside.
Exterior applications will require the use of a protective housing, and the amount of sun exposure should be
considered when selecting the placement of the condensing unit .The condensing unit requires a dedicated 20 amp
circuit, non-GFI. Make sure there is a minimum three-foot horizontal clearance in front and rear of the unit. The unit
should be plugged-in.
Set the condensing unit level and with proper clearances in accordance with the instructions, name plate power
supplied, proper electric disconnect and fuse protection connected but not turned on and ready for piping
connections.
Inside Condensing Unit Installations: Inside installations require special consideration, as there must
be adequate ventilation to remove the heat created during normal operations. An exhaust port with fan
may need to be installed to ensure that heat is effectively removed from the utility room. A return grille or
provision for 500 - 600 cfm of cool air to enter the room to replace the exhausted air will accomplish this.
Unobstructed airflow to and from the unit is a critical factor in the unit’s overall performance. Make sure there
is a minimum three-foot horizontal clearance in front and rear of the condensing unit and at least one foot on
each side. This will assure that the unit can move the air around the room in an efficient manner.
Outdoor Condensing Unit Installations. You must utilize the exterior condensing unit housing for outdoor
installations. Place the condensing unit on a solid foundation in a location with adequate ventilation. There
should be three feet of clearance in the front and rear of the unit and one foot on each side. The unit should
be elevated 18 inches in order to avoid any possible flooding or damage by animals, and should be clear of
leaves, dirt, and other debris.
Fan Cycling Switch:
These switches are used to cycle the condenser fan at low ambient temperature conditions.
Refrigeration Lines
A 1/4 inch O/D copper “liquid line” is required
Model
Platinum Mini-Split
Platinum Mini-Split
Line Set Length
Vertical Rice
Horizontal Tubing
Vertical Rise
<3ft
<25ft
3-10ft >10ft
26-50ft
<3ft 3-10ft >10ft
3/8”
3/8”
50-100ft
<3ft 3-10ft >10ft
The refrigerant drier and the sight glass shall be installed (in that order) in the direction of the refrigerant flow in the
liquid line between the condensing unit and Evaporator Unit (Fan Coil Unit). Enclose the suction line in a cellular
insulation ½” wall thickness Armaflex (brand name) or equal to reduce heat transfer.
www.whisperkool.com | Page 25
LINE SET PIPING DIAGRAMS
These are two options for running the line
set from the coil to the condensing unit.
Option 1 is specifically for when the system
is installed with the condensing unit below
or leveled to the coil. Option 2 is for when
the system is installed with the
condensing unit at a higher
elevation than the coil.
Option 1
Option 2
Page 26 | 1-800-343-9463
MPS 101713
INSTALLING THE CONDENSING UNIT
Refrigerant Piping Procedures
When installing/routing the lines set, cap both ends of each tube to prevent material or debris from entering the
tubing.
Prior to connecting the piping, loosely connect the refrigerant gauges to the service ports of the suction and liquid
line service valves. Purge the charging hoses with dry Nitrogen and tighten the hose connections. Remove the service
valve caps and turn the valve stem clockwise (half of a complete turn) in order to unseat the valve and open the
service port. The valve comes in a back seated position from the factory. Keep the piping port sealed until ready to
connect to the vacuum pump.
Cleanliness is of the utmost importance. All horizontal suction piping should be pitched toward the condensing unit
1/2” for every 10’ of pipe. During any brazing procedure, dry Nitrogen should be purged through the fitting at a slow
rate to prevent formation of highly abrasive Copper Oxide. Make sure there are no obstructions to the flow which
would cause pressure build up and the brazed fittings to leak. After leak testing and confirming there are no leaks,
insulate suction line with 1/2” wall thickness Armaflex or equal insulation. Seal all seems using Armaflex 520 Foam
Insulation Adhesive or equivalent. Wrap each seam using line set tape.
Liquid Line Piping Procedure
It is required to use a 1/4” OD Copper tube liquid line. When making connections keep the ends sealed until ready to
fit the tube. First connect the supplied refrigerant drier close to the liquid service valve (king valve) on the receiver.
Downstream, connect the moisture indicating sight glass in an easily visible location. Run the tubing to the Evaporator
Unit (Fan Coil Unit) location and fit to the liquid line stub from the Evaporator Unit (Fan Coil Unit). Energize the
Evaporator Unit (Fan Coil Unit) and set the temperature controller to call for cooling, this will activate the liquid line
solenoid valve. Uncap the suction pipe to prevent obstructed Nitrogen flow. Open the Nitrogen to allow a slow flow
and braze the liquid line fitting. Shut off the Nitrogen and power until suction line is brazed.
Suction Piping Procedure
Slide Aramaflex insulation over the tubing for the entire length of the tube and keep the end of tube sealed during
this procedure. Keep the tubing sealed while running the connection points and fit the suction tube to the Evaporator
Unit (Fan Coil Unit) outlet connection. Install a Schrader Type Access valve at the outlet of the Evaporator Unit (Fan
Coil Unit) to allow for superheat checking. If there are brazed fittings along the length of the tube, apply the insulation
after leak testing.
After all piping ran and ready for the brazing process: Energize the Evaporator Unit (Fan Coil Unit) and set the
temperature controller to call for cooling. Open the liquid line service valve and bleed the nitrogen through both
the liquid and suction line. Loosen the suction gauge hose to relieve pressure during the brazing process. Braze the
connections and cool them off quickly. With the solenoid valve still energized, connect the refrigerant cylinder and
add a small amount of 134a to both the high and low sides.
Leak Testing
Using Dry Nitrogen pressurize the system to 200 PSI. Check to see if there is a noticeable pressure drop, if so locate and
fix leak. With pressure at 200 psi, check for leaks with a refrigerant leak detector and/or soap bubbles. Confirm pressure
holds at 200 psi for 30 minutes. If not check again for leaks and repair, perform another leak test. When it is confirmed
there are no leaks, release the nitrogen pressure and leave the solenoid valve energized.
Insulate the 3/8” suction line with the 10” piece of supplied cork tape.
www.whisperkool.com | Page 27
INSTALLING THE CONDENSING UNIT
Evacuation
Connect evacuation type four valve gauge manifold to high and low pressure service valve ports on the condensing
unit with the valve stems mid seated as when leak testing. Install service caps on valves and tighten them. Energize
the liquid line solenoid valve (make sure there is fresh oil in the vacuum pump). Connect a micron gauge directly to
the pump, blank off and start the pump to verify that it is capable of 200 micron vacuum and the gauge is capable
of reading that vacuum. Connect the micron gauge to the access valve installed in the suction line at the evaporator.
Remove the Schrader valve depressors from the gauge hoses to reduce restriction and connect gauges to the suction
and liquid line service valve service ports on the condensing unit. Connect the pump to the 3/8” hose on the manifold
set, start the pump and run until the micron gauge reads 200 microns.
When a 200 micron level evacuation is achieved, break the vacuum with R-134a and add enough refrigerant to
pressurize the system with a few psi of positive pressure.
Charging
Remove the vacuum pump and the micron gauge. Install a spare low pressure gauge to the access valve at the
evaporator. With the power off to the condensing unit, place the cylinder of R134a on a digital scale. Admit liquid
refrigerant to the system through the high pressure side,
(Liquid line service valve) until the refrigerant stops flowing or until about three pounds have been added. Shut off
refrigerant flow to system.
Fill a wine bottle ¾ full with water between 60-75 degrees. Insert the bottle probe into the neck of the bottle as far as
possible. (It is important the bottle probe stopper is compressed by the neck of the bottle to ensure water will not leak
out.). Verify that the bottle probe is properly installed and the set point on the controller is low enough to allow the
system to run continuously for 30 minutes or more. Turn on power to the condensing unit and the compressor should
start if suction pressure is above 6 psi. If the system pumps down and the compressor shuts off, set the 5 minute time
delay relay time to the lowest setting to avoid having to wait. Add refrigerant as a vapor through the low pressure side
of the system (suction service valve port).
Observe the sight glass when the compressor starts. If bubbles are present, slowly add more refrigerant in vapor
form to the low side. The suction pressure and head pressure should increase as the sight glass clears. Check the
superheat during the charging process. If the superheat drops to 4 or 5 degrees Fahrenheit and sight glass still has
bubbles, let the unit run until the wine cellar temperature drops and approaches 55 degrees Fahrenheit. Observe the
sight glass, if bubbles are present add additional refrigerant in small increments. Let the system stabilize for about 5
minutes and check the sight glass for bubbles before adding additional refrigerant. Once the sight glass is clear, check
the superheat at the outlet of the evaporator (evaporator superheat should be between 8-12 degrees Fahrenheit). If
superheat is not between 8 and 12 degrees make an adjustment to the expansion valve. Depending temperature, the
“high side” should be approximately 175lbs, and the “low side” should be 28lbs or more to keep the evaporator from
icing.
Page 28 | 1-800-343-9463
MPS 101713
INSTALLING THE CONDENSING UNIT (continued)
Measure Superheat
If superheat is high and bubbles are present, add more refrigerant until it is clear. If superheat is low (around 4-6
degrees Fahrenheit) and bubbles are present in the sight glass, check for liquid refrigerant entering the compressor
as evidenced by cool crankcase below 100- 110 degrees Fahrenheit and low discharge superheat. Adjust TXV setting
in small increments to increase superheat and stop liquid from going to the compressor. Check this before adding
more refrigerant. If the temperature of the air entering the condenser is cold enough to cause the condenser fan to
cycle, block about 60% of the coil to raise the head pressure and allow time for stabilization. Reduce blockage if the
condensing temp is above 115 degrees Fahrenheit. Retain blockage if necessary to maintain stability for performance
test listed in the Split System Warranty Checklist. If the air is cold, below 60 degrees Fahrenheit entering the condenser
and the sight glass is clear; allow the system to run for a while until the cellar cools off, then measure and record data
on the Split System Warranty Checklist.
Confirm the controller is displaying the correct temperature and that the controller is not displaying an alarm. If the
controller is displaying an alarm reference page 29 for corrective action. Confirm that the suction line is completely
insulated, from TXV to compressor. Confirm that the sight glass has no bubbles and the ambient temperature around
the condensing unit is not getting excessively hotter. Confirm that both king valves have been back seated and the
nuts have been installed back on the king service ports.
www.whisperkool.com | Page 29
NOTES
Page 30 | 1-800-343-9463
MPS 101713
UNIT OPERATION
three times and continue normal operation.
Initial Start-Up:
When power is applied to the unit, the control will briefly
display all symbols, and the Compressor symbol will be
displayed (if unit is calling for cooling). There may be a brief
delay prior to the evaporator fans turning on.
Set Point:
The set point is set from the factory (WhisperKool) at 55°. It
can be adjusted by the customer between 50° and 70° in
one degree increments.
Cooling Operation:
Cooling is activated once the bottle probe senses a
temperature that is 1° greater than the set point. The
controller then energizes the solenoid relay which activates
the solenoid. The evaporator fans operate with the
compressor. The unit provides cooling until the bottle probe
senses the set point. At this point the solenoid relay is deenergized which stops the flow of refrigerant through the
evaporator coil. The compressor will continue to run until
the low side pressure reaches 5 psi. The evaporator fans will
continue to run for 1 minute to re-evaporate any moisture
from the evaporator coil.
Humidity Features:
The FDC parameter can be increased to allow the evaporator
fans to run for a longer period of time after the compressor
turns off, allowing more moisture to be re-evaporated into
the cellar.
Defrost/Anti-frost:
When the evaporator probe senses a temperature of
26 degrees for 5 minutes, the unit will go into Anti-frost
mode. This will shut down the compressor and allow the
evaporator fans to run to evaporate any frost accumulation
on the coil. The compressor will remain off until the
evaporator coil reaches 40°, or for a maximum of 10 minutes.
The unit will then return to normal operation.
If the evaporator is not above 26 degrees after the anti-frost
sequence has ended, the red error light will display in the
upper right corner. Alarm “Ad3” will be recorded in the alarm
folder, meaning that the anti-frost sequence ended based
on time. The unit will run for 5 minutes and then enter
another Anti-Frost cycle. This sequence will continue until
the evaporator temperature increases above 26°.
Display:
The bottle probe temperature is displayed by default.
“Def” is displayed during anti-frost. The bottle probe and
evaporator probe temperatures can all be accessed by
pushing the set button and scrolling through PB1 (bottle
probe) and PB2 (evaporator probe).
Safety Features:
Once the solenoid relay is de-energized the controller must
wait 5 minutes before re-energizing the relay. This prevents
the compressor from repeatedly turning off and on. If the
unit is calling for cooling during this time, the compressor
symbol will blink indicating that cooling is needed but the
control is waiting for the anti-short cycle delay.
In the event of a faulty bottle probe, the compressor will
cycle off for 10 minutes and on for 40 minutes. E1 will will
be displayed on the screen.
Alarms:
If the bottle temperature reaches 8 degrees above the set
point, a red light will blink in the upper right corner of the
display. The set button can then be pressed to reach the
alarm menu. The menu will display “AH1” indicating a high
bottle temperature. The same thing will happen if the bottle
temperature reaches 8 degrees below the set point, except
the alarm will read “AL1”. These alarms will not display for the
first 10 hours after the unit is turned on to allow the cellar
to reach temperature. They will also wait one hour after an
anti-frost cycle before displaying.
In the event of a faulty evaporator probe E2 will flash on the
screen intermittently. The red alarm light will be displayed
in the upper right corner. The unit will go through one antifrost sequence every 24 hours.
Press the set button and enter the Al folder to view any
current alarms that are not flashing on the display.
“Def” will be displayed during anti-frost. If the anti-frost
sequence is less than 5 minutes, the control will not allow
the compressor to start until 5 minutes has elapsed. This is
to prevent short cycling of the compressor.
Holding down the up button for approximately five seconds
manually starts the Anti-frost sequence, but only if the
evaporator is below 40 degrees (defrost end temperature).
If the evaporator is above 40 degrees, the display will blink
www.whisperkool.com | Page 31
CONTROLLER FUNCTIONS
Button/Symbol
Normal Functions
ON/OFF • Press and hold the on/off button for approximately 3 seconds to turn the unit on or off.
Note: This does not disconnect power from the unit. In order for the power to be shut off from
the unit, the power cord must be unplugged from the wall receptacle.
• This button also serves as an escape button.
Up and Down • Use these buttons to scroll up or down a menu.
• Press and hold the up button for approximately five seconds to manually start the Antifrost sequence. The Anti-frost sequence will begin, but only if the evaporator is below 40
degrees. If the evaporator is above 40 degrees, the display will blink three times, signalling that an Anti-frost cycle is not needed, and the unit will continue normal operation.
SET • Press the set button once to view the set point, temperature of the evaporator and actual
bottle temperature as well as any alarms.
• Once the set button is pressed “SEt” will be displayed. Press the up or down arrows to
scroll through Pb1 & Pb2.
SEt
Set Point
Pb1
Liquid Temperature
Pb2
Evaporator Coil Temperature
• Press the set button again to view any of these values.
• To change the set point, press the SET button. When “SEt” is displayed on the screen,
press the SET button once more. Use the up and down arrow buttons in order to change
the value until the desired set point is reached.
• Hold the set button for approximately 5 seconds to enter the CPSM (Customer Preference
Selection Mode) menu. (CPSM detail on next page)
Snowflake Constant - Unit is in cooling mode and the compressor is running.
Blinking - The unit is calling for cooling, but must wait 5 minutes before restarting the compressor. This 5 minute delay serves as an anti-short cycle for the compressors protection.
Dripping Snowflake Unit is in Anti-frost mode. The evaporator and condenser fans are running to evaporate any
frost which may have formed on the evaporator coil.
Fan The evaporator and condenser fans are on.
Page 32 | 1-800-343-9463
MPS 101713
Alarm The Alarm symbol is shown and a audible buzzer will sound when the unit encounters an issue that
needs attention, the displayed alarm codes are explained below. To silence the buzzer press any button, the alarm code will remain displayed until corrected.
Alarm Codes
Message
“E1”
“E2”
“AH1”
Cause
Solution
Bottle Probe is Unplugged
Attach Bottle Probe to Unit.
Faulty Bottle Probe
Connection
1. Check Bottle Probe attachment at circular connector.
2. Check Bottle Probe connection at the back of controller.
Defective Bottle Probe
Replace the Bottle Probe.
Faulty Evaporator Probe
Connection
Check Evaporator Probe connection at the back of controller.
Defective Evaporator Probe
Replace the Evaporator Probe.
The bottle probe is sensing a 1. Allow time for the wine to reach the desired temperature.
temperature that is 8° above 2. Make sure all windows and doors are closed and have a proper seal.
the set point
3. Follow the procedures in the pre-installation instructions to test the unit for proper
cooling.
“AL1”
The bottle probe is sensing a 1. Make sure unit is not in cooling mode. (the snowflake symbol will not be lit)
temperature that is 8° below 2. Add heat to the room until the wine reaches the desired temperature.
the set point
“Ad3”
Anti-frost ended on time-out 1. Check the evaporator coil for ice buildup. Unplug the unit and allow coil to thaw
before re-starting.
2. Make sure the room to which the unit is exhausting is not less than 60°.
3. If unit continues to go into continuous anti-frost cycles (every 5 minutes), call customer service for more troubleshooting information.
CPSM (Customer Preference Selection Mode)
Press and hold the set button for approximately 5 seconds to enter the CPSM menu.
“Fdc” will be displayed on the screen. Use the down arrow to access the following parameters.
Fdc This parameter is set to 1 from the factory which should provide adequate relative humidity for the
Humidity Management/ cellar. An increase in this parameter will increase the Humidity Enhancement (%RH). This parameter
Enhancement should not be adjusted below 1. Adjustments should be made in increments of 5, with a maximum of
15 and a minimum of 1. After any adjustment to Humidity Enhancement you should wait a minimum
of three days before making any additional adjustments. This will allow the cellar sufficient time to
acclimate to the new setting.
PA2 No adjustable settings in this parameter.
tab No adjustable settings in this parameter.
Rel No adjustable settings in this parameter.
loc Change this parameter from “n” to “y” to lock the keyboard from changes to the set point.
ddd Select one of these numbers to display your preference:
0 = Set Point
1 = Bottle Probe Temperature
2 = Evaporator Probe Temperature
“CA1” Use this parameter to calibrate the bottle probe to a known temperature. This parameter can be adjusted between -12°F and 12°F.
Example:
Bottle temperature reading = 58°F
Known temperature reading = 55°F
CA1 parameter setting to match known temperature = -3
www.whisperkool.com | Page 33
TROUBLESHOOTING GUIDE
Unit has ice forming on the Evaporator Unit (Fan Coil Unit)
Possible Cause
Solution
Evaporator filter or coil is dirty.
Remove the filter and wash, then clean the coil with a vacuum.
If coil is very dirty, use a spray bottle with a small amount of
liquid dish washing detergent or coil cleaner. Spray coil, let set
for 5 min, then flush with fresh water.
There is something blocking the supply and or return air
Remove blockage
The evaporator fan is not turning on.
Call a service tech to troubleshoot
The Evaporator Unit (Fan Coil Unit) has not gone through
its anti-frost sequence, yet.
Check for ice in the depth of the coil. Melt with blow drier
until coil is warm to the touch. Soak up water with a towel.
If Evaporator Unit (Fan Coil Unit) continues to ice.
Observe ice formation pattern. If only part way up the coil
face, the system could be low on refrigerant. If all the way
up, the coil may be dirty or airflow is blocked.
Unit does not run/power up
Possible Cause
Solution
Evaporator Unit (Fan Coil Unit) is not plugged in
Make sure the unit is plugged into an outlet
Power switch not on
Turn unit on by pressing the power button on the control
Line voltage is incorrect rating for the system
Check line voltage to make sure there is 110v/120v
Bottle at set point
Lower set point
Thermostat not calling for cooling
Lower set point
Faulty thermostat or wiring
Call Customer Service at 1-800-343-9463
Cellar Temperature is to Warm
Possible Cause
Solution
The temperature or the room condensing unit is
exhausting to has exceeded 110°F
Intake temperature needs to drop below 85°.
The system is undersized for the cellar.
Order correct size system
There is something blocking the supply and/or return air,
on the Evaporator Unit (Fan Coil Unit) or the Condensing
Unit.
Remove air flow obstruction
Evaporator Unit (Fan Coil Unit) is mounted too low in the
cellar
Re-Locate unit so the distance from the ceiling and top of
the unit is no more than 18”
One or more of the fans are not turning on.
Please contact the installing technician to troubleshoot.
Compressor is not turning on.
Please contact the installing technician to troubleshoot.
Compressor keeps cycling on overload
Make sure all fans are working and there are no airflow
obstruction.
Poor seal around door or other areas requiring a seal
(around the unit, wall joints, etc)
Make sure there are no air gaps around the door. If door
seal is damaged, replace it.
Controller set too high
Lower the set point.
Evaporator coil is frosted or iced up
Observe ice formation pattern. If only part way up the
coil face, Evaporator Unit (Fan Coil Unit) could be low on
refrigerant. If so, contact your installing technician to assist
with troubleshooting.
System Runs Constantly
Possible Cause
Leaky door seal or poorly insulated cellar.
Page 34 | 1-800-343-9463
Solution
Fix leaky door seal and insulate cellar in accordance with
this manual. (Page 9)
MPS 101713
TROUBLESHOOTING GUIDE
Unit leaks water
Possible Cause
Solution
Evaporator Unit (Fan Coil Unit) is not level
Evaporator Unit (Fan Coil Unit) should be level on the wall to
prevent leaking.
Drain line clogged or kinked
Check drain line to make sure water can flow freely.
Drain is clogged preventing water form escaping
Disconnect drain and clear out, open access door and check
drain for blockage
Drain line does not have a downward slope
Fix Drain line so there is a downward slope from the unit to the
drain.
Coil is iced causing drain pan ice and water overflowing
Melt ice with blow drier. Soak up with a towel
Unit runs but does not cool
Possible Cause
Solution
Lack of air flow
Make sure fan is unobstructed; Make sure the evaporator filter,
evaporator coil, and condenser coil are clean and free of debris.
System undersized
Contact Customer Service at 800-343-9463
Compressor is overheating
Shut system off for 1 hour to allow compressor to cool. Turn back
on and check for cooler air flow out. If compressor runs, check
for and clean condenser coil as possible cause of compressor
overheating. If problem repeats, contact you installing technician
to assist with troubleshooting.
Evaporator fan runs but compressor does not
Possible Cause
Solution
Running an Anti-Frost Cycle
1) If the system is maintaining the correct cellar temperature
and there is a dripping snowflake symbol illuminated on the
control, the system is going through an anti frost cycle. No action
Required. 2) If the system is not maintaining the correct cellar
temperature this may be caused by a dirty evaporator filter or
coil. 3) Call installing technician to troubleshoot as the system
may be low on charge or an adjustment to the TXV.
Compressor and/or starting components faulty
Please contact the installing technician to troubleshoot.
System may be performing the WHM function
Allow cooling system to revert back to cooling mode.
Compressor may have overheated.
Shut system off for 1 hour to allow compressor to cool. Turn back
on and check for cooler air flow out. If compressor runs, check
for and clean condenser coil as possible cause of compressor
overheating. If problem repeats, contact you installing technician
to assist with troubleshooting.
Compressor runs but evaporator fan does not
Possible Cause
Solution
Faulty fan motor
Please contact the installing technician to troubleshoot.
Faulty Controller
Please contact the installing technician to troubleshoot.
Compressor short cycles
Possible Cause
Solution
Evaporator Unit (Fan Coil Unit) blows on bottle probe
Move bottle probe to a more central location.
System low on refrigerant charge
Please contact the installing technician to troubleshoot.
Condensing fan motor/capacitor faulty
Please contact the installing technician to troubleshoot.
Compressor and /or starting components faulty
Please contact the installing technician to troubleshoot.
Humidity in cellar too low
Possible Cause
Not enough moisture
Solution
Raise the Fon setting to increase the humidity level
www.whisperkool.com | Page 35
TECHNICAL ASSISTANCE
WhisperKOOL Customer Service is available Monday through Friday from 6:00 a.m. to 4:00 p.m. Pacific Time.
The customer service representative will be able to assist you with your questions and warranty information more
effectively if you provide them with the following:
• The model and serial number of your WhisperKOOL systems.
• Location of unit and installation details, such as ventilation, ducting, construction of your wine cellar, and
room size. Photos of the cellar and installation location may be needed.
Contact WhisperKOOL Customer Service
1738 E. Alpine Ave
Stockton, CA 95205
www.WhisperKOOL.com
Email: [email protected]
Phone: (209) 466-9463
US Toll Free 1(800) 343-9463
Fax (209) 466-4606
ACCESSORIES FOR COOLING UNITS
WhisperKOOL offers accessories to enhance and customize your wine cooling unit.
Exterior Housing
Protects the Condensing unit from the weather elements when the unit is located outside.
Condensate Pump Kit
The condensate pump kit is designed as an automatic condensate removal pump for water dripping out of our
Evaporator Unit’s (Fan Coil Unit’s) drain line. The pump is controlled by a float/switch mechanism that turns the pump
on when approximately 2-1/4” of water collects in the tank, and automatically switches off when the tank drains to
approximately 1-1/4”. The condensate pump kit allows the excess condensate to be pumped up to 20ft away from the
unit.
Accessories can be purchased at www.whisperkool.com
Page 36 | 1-800-343-9463
MPS 101713
NOTES
www.whisperkool.com | Page 37
WhisperKOOL
1738 E. Alpine Ave
Stockton, CA 95205
1(800) 343-9463
www.whisperkool.com
MPS 101713
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