WHISPER KOOL Mini Split User manual

MPS 101713
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 eort 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

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TABLE OF CONTENTS
WhisperKOOL requires that a certied HVAC-R technician install, Pipe, Evacuate, Charge, Start and Test all split systems.
A Nate Certication 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.
Quick Reference Guide
System ..................................................
Controller Layout & Specications ........................
Introduction ................................................
Receiving & Inspecting The System .........................
Before You Start ............................................
Preparing the Wine Cellar...................................
Mini Split Evaporator Unit Internal Quick Reference Guide.
Preparing & Installing the Evaporator Unit (Fan Coil Unit)..
Installing the Evaporator Unit (Fan Coil Unit)...............
Active Humidity Option Over View .........................
Humidistat Installation .....................................
Mini-Split Evaporator Unit (Fan Coil Unit) Terminal Board ..
Preparing the Condensing Unit.............................
Mini-Split Condenser Wiring Diagram ......................
Line Set Diagram ...........................................
Installing the Condensing Unit .............................
System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Functions ........................................
Troubleshooting Guide .....................................
Technical Assistance & Accessories .........................
2
3
4
5
6
7
10
11
13
17
18
21
22
23
26
27
31
32
34
36

Page 2 | 1-800-343-9463 MPS 101713
QUICK REFERENCE GUIDE
Wall Mounted Mini Split Evaporator Unit (Fan Coil Unit) Front / Side View
Evaporator Unit (Fan Coil Unit) Rear / Side View
Controller
Filter Grille
Evaporator Unit (Fan Coil Unit)
Circular Connection
Mounting Location
INSIDE CELLAR
Option 2
THROUGH THE WALL
Option 1
Knock Out For Wiring
Knock Out For Suction Line
Knock Out For Liquid Line
Knock Out For Drain Line
Knock Out For Wiring
Mounting Key Hole (X4)
Knock Out For Suction Line
Knock Out For Liquid Line
Knock Out For Drain Line

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QUICK REFERENCE GUIDE
Controller Layout
Refer to page 28 for complete listing of buttons and symbols.
Model Mini Evaporator Unit
(Fan Coil Unit)
Mini Condenser
(Air Cooled Condensing Unit)
Cellar Size (cu. ft.) 500
Dimensions 20”w x 10.5”h x 13”d 11.5”w x 9.9”h x 16”d
BTUh with 90° air entering
the condenser coil. 1540
CFM 99 190
Refrigerant R-134a
Condensing Unit HP 1/5
Power Requirements Hard Wire Plug In
Voltage Rating 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 specications found in the Tech
Manual.
Thermostat Digital Control Display
Temp. Delta 55°F temperature dierential
(maintains proper cellar temperature when exhaust environment does not exceed 110°F)
Warranty 2 year parts and labor
Compressor On
Unit is in Anti-Frost Mode
Fans are On
Alarm is Present
Temperature Measurement
Menu Navigation
& Value Increase
*Press and hold
to manually enter
anti-frost mode.
Power On/O
(hold for approx. 3 seconds)
& Escape
Menu Navigation
& Value Decrease
Probe Values &
Alarm Folder
*Press and hold to
enter the parameter
menu.

Page 4 | 1-800-343-9463 MPS 101713
WARRANTY REGISTRATION
In order to activate the warranty of your system, the Verication and Operational
Documentation must be completed by the certied 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
Fax to:
209.466.4606
Scan and email to:
[email protected]
OR OR
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 ne 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.

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RECEIVING & INSPECTING THE SYSTEM
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.
(1) Platinum Mini Split Evaporator Unit ( Fan Coil Unit)
(1) Condensing Unit
(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 Specic Installation Guide
(1) Evaporator Mounting Template
Main Evaporator Box
Main Condensing Unit Box:
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:

Page 6 | 1-800-343-9463 MPS 101713
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.

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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 eects.
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 specic 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 berglass 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 inltration 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 signicantly 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.

Page 8 | 1-800-343-9463 MPS 101713
Wine Cellar
Keep Clear
Unobstructed Airow
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.
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
sucient 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 oor.
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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BACK - EXHAUST SIDE
FRONT - WINE CELLAR
Exterior Cellar Wall
Evaporator Unit
( Fan Coil Unit)
Condensing Unit
Ambient Temperature Factor
The cooling system has the ability to cool a wine cellar eciently 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.
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 aect 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 specic installation at [email protected] or 1.800.343.9463.
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.

Page 10 | 1-800-343-9463 MPS 101713
MINI SPLIT EVAPORATOR UNIT INTERNAL QUICK REFERENCE GUIDE
BLOWER
REFRIGERANT
SOLENOID COIL
TXV SENSING
BULB
TXV

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PREPARING AND INSTALLING THE
EVAPORATOR UNIT (FAN COIL UNIT)
• 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
Required Tools:
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.
NOTE: From a frontal perspective, the Circular
Connector is located in the rear-left corner of the
bottom of the unit.
5. Secure the Circular Connector (Bottle Probe
Input) to the unit using the provided nut (the
Rubber Washer should remain inside the unit).
RUBBER WASHER
NUT
UNIT PANEL
CIRCULAR CONNECTOR/
BOTTLE PROBE INPUT
HOLE FOR CIRCULAR CONNECTOR
(BOTTLE PROBE INPUT)
DRAIN PAN

Page 12 | 1-800-343-9463 MPS 101713
PREPARING AND INSTALLING THE
EVAPORATOR UNIT (FAN COIL UNIT)
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.
Length To Extend To Desired Tee Location 3”
Power
3/8” Suction
1/4” Liquid
Drain
7. Depending on the desired installation, remove the rear
or bottom knockouts for the Line Set, Drain Line and Power
Cord.
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.

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INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT)
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.
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.
Note: The evaporator is designed to be mounted on two standard 16”spaced wall studs.
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.
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.
1/16”
WALL
STUD

Page 14 | 1-800-343-9463 MPS 101713
INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT)
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).
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 ame up and away from any
electrical and insulation while brazing inside of
the unit.
Note: For ease of installation remove the top
panel after securing unit to wall.
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
°
F
°
F

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°
F
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.
Failure to install the drain line
voids the warranty.
To prevent mold from growing,
allow the drain line to hang
above the water 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.
WRONG: Drain line is under water.
INSTALLING THE EVAPORATOR UNIT (FAN COIL UNIT): DRAIN LINE
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.
NOTE: The fitting should be
placed vertical with the three
inch cut out facing up.
THROUGH THE WALL DRAIN LINE
OPTION 1
INSIDE CELLAR DRAIN LINE
OPTION 2
3” CELLAR WALL
WALL MOUNT CLAMP
°
F
BARBED TEE
Figure 1
Figure 2
Figure 3

Page 16 | 1-800-343-9463 MPS 101713
NOTES

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ACTIVE HUMIDITY OPTION OVERVIEW
Use of the Active Humidity Option
Humidity may uctuate 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%.
Accessory Included with Active Humidity Option:
(1) 25 ft. Humidistat Cable
(1) Dayton Humidistat
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.
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
tting on the unit as shown in Figure 3.
• Turn on the water and check for leaks.
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.
Do not allow water leakage inside of the Unit. TUBING OUTLET
OPTIONAL INSERT FOR
PLASTIC TUBING
WATER SUPPLY
Figure 2
Figure 3
Figure 1
FILTRATION SYSTEM
COOLING UNIT
MISTING NOZZLE
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

Page 18 | 1-800-343-9463 MPS 101713
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.
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.
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.
Figure 2
Figure 4
Slide controls
Figure 3
HUMIDISTAT INSTALLATION
Screws
Terminal Block
3. Carefully remove the cover as shown in gure Figure 3.