Wine Guardian SS018 Technical Document

Ductless Split
Wine Cellar Cooling Systems
Installation, Operation and Maintenance Guide
Models:
SS018 –60 Hz
WGS25 –50 Hz
Manufactured by:
Syracuse, NY
www.wineguardian.com www.airinnovations.com
Wine Guardian reserves the right, without notice, to make changes to this document at its sole discretion.
Please visit our web site for the most current version of the Wine Guardian manual and other literature.
Wine Guardian is a registered trademark (2,972,262) of Air Innovations, Inc.
Condensing Unit Patent No. U.S. D791295, EU 003189349-0001
Edition 5-2017
© Air Innovations, 2017 Part No. 15H0182-00

Table of Contents
Illustrations......................................................................................................................1
Directory of Terms...........................................................................................................2
Receiving, Inspecting and Unpacking the Wine Guardian Unit .......................................3
Review the Packing Slip to Verify ........................................................................................ 3
General Description.........................................................................................................4
The Wine Guardian Ductless Split System Contains.............................................................. 4
Wine Guardian Fan Coil Unit ................................................................................................................ 5
Electrical Controls ................................................................................................................................. 5
Condensing Unit.................................................................................................................................... 5
Accessories and Optional Equipment .................................................................................. 6
Heating Coils ......................................................................................................................................... 6
Extended Compressor Warranty .......................................................................................................... 6
Low Ambient Option............................................................................................................................. 6
Condensate Pump................................................................................................................................. 6
Humidifier ............................................................................................................................................. 6
Remote Temperature/Humidity Controller (see how to install on page 34) ................................. 6
Remote Temperature/ Humidity Sensor ............................................................................................. 6
Heater Option ....................................................................................................................................... 7
Serving Temperature Option ................................................................................................................ 7
Wine Guardian Specification Sheet ...................................................................................................... 9
Safety............................................................................................................................15
Safety Message Conventions .............................................................................................15
Danger.................................................................................................................................................15
Warning...............................................................................................................................................15
Caution................................................................................................................................................ 15
Lockout/Tagout Procedure ..................................................................................................16
Safety Considerations...........................................................................................................16
Safety Hazards .................................................................................................................................... 16
Electrical Hazards................................................................................................................................ 16
Electrical Shock Hazards ..................................................................................................................... 16
Hot Parts Hazards ............................................................................................................................... 16

Moving Parts Hazards .........................................................................................................................16
Equipment Safety Interlocks..................................................................................................17
Main Power Switch................................................................................................................17
Installation.....................................................................................................................19
Pre-installation Test ..............................................................................................................19
Air Flow Diagram ..................................................................................................................19
Installing the Fan Coil Unit ............................................................................................21
Planning the fan coil installation............................................................................................21
Mounting the System ............................................................................................................23
Installing the Condensate Drain Connection.................................................................25
Installing the Drain Line.........................................................................................................25
Priming the Drain..................................................................................................................25
Wiring the Fan Coil Unit for Power................................................................................26
Installing the Condensing Unit.......................................................................................27
Installation of Interconnecting Refrigerant Lines (Suction and Liquid) ...................................27
Split System Interconnecting Line Sizing Chart................................................................................... 28
Sample Piping Configurations...............................................................................................29
Leak Checking and Evacuation Process...............................................................................30
Wiring.................................................................................................................................................. 30
Refrigerant Charging –for low ambient models only......................................................................... 31
Determining the amount of charge .................................................................................................... 31
Procedures for Charging System with Low Ambient Option (Head Pressure Control)...........31
Superheat............................................................................................................................................ 33
Sub-Cooling.........................................................................................................................................33
Split System Operations Chart ............................................................................................................ 34
Installing the Thermostat and Communication Cable....................................................35
Mounting the Remote Interface Controller –Optional Feature...............................................35
Installing the Wine Guardian Remote Sensor –Optional Feature..........................................37
Mounting the Remote Sensor................................................................................................37
Joining the Communication Cable.................................................................................39
Changing Jumper Positions ..................................................................................................39
Standard Controller Functions.......................................................................................40
Inspection and Start Up Checklists ...............................................................................46
Receiving and Inspecting......................................................................................................46
Handling and Installing..........................................................................................................46
Starting-up the Unit...............................................................................................................46
Starting-up and Operating the Wine Guardian Split System .........................................47

Turn on the Unit....................................................................................................................47
Testing the Fan.....................................................................................................................47
Running the Unit ..................................................................................................................47
Setting the Local User Interface Controller............................................................................48
Regulating the Wine Cellar Temperature ..............................................................................48
Maintenance..................................................................................................................49
General ................................................................................................................................49
Cleaning the Condensate Drain System................................................................................50
Cleaning the Humidifier.........................................................................................................50
Heating Coil Option...............................................................................................................50
Maintenance Schedule ................................................................................................51
Monthly.................................................................................................................................51
Yearly....................................................................................................................................51
Troubleshooting ...........................................................................................................52
Typical start up problems ................................................................................................................. 52
Unit does not start up .......................................................................................................................52
Power switch light is on and the remote interface controller light is off........................................... 52
Power switch light is on and the remote interface controller light is on ........................................... 52
Unit is operating and blows evaporator air ,.................................................................................... 53
Cellar temperature too cold (below 51 degrees) when unit is running ............................................. 53
Cellar temperature too cold (below 51 degrees) when unit is not running....................................... 53
Humidity too low or supply air is too cold, without optional humidifier ...........................................53
Humidity too low, without optional humidifier.................................................................................. 54
Humidity too low, with optional humidifier ....................................................................................... 54
Humidity too high when unit is running but not cooling.................................................................... 54
Humidity too high when unit is not running....................................................................................... 54
Humidity too high when unit is running and cooling.......................................................................... 54
Unit operates but the power switch light is not ON........................................................................... 55
Unit is leaking water ........................................................................................................................... 55
Unit is running properly, but the sound of the unit objectionable ....................................................55
High Pressure Switch has Shut the Unit Down ..................................................................55
Advanced Troubleshooting............................................................................................56
Evaporator Coil is Freezing ................................................................................................................. 56
High pressure switch keeps tripping................................................................................................... 56
Unit cycles on and off more than 8 times/hr......................................................................................56
High pitched or loud rubbing noise, clanking or vibration .................................................................56

Replacing the blowers.........................................................................................................................56
Contact and Warranty Information ................................................................................57
Contact Information...............................................................................................................57
Warranty and Warranty Procedure .....................................................................................57
Manufacturer’s Warranty – U.S. and Canada Only ...................................................58

1
Illustrations
Overview of fan coil and condensing unit ....................................................................….8
Wine Guardian specification sheet .......................................................................................9
Refrigeration Illustration........................................................................................................10
Ductless Dimensional drawings for models SS018 & WGS25.............................................11
Wiring diagram for model SS018..........................................................................................12
Wiring diagram for model WGS025......................................................................................13
Wiring diagram for models SS018 & WGS25 condensing unit............................................14

2
Directory of Terms
Ambient Air –The surrounding area outside the wine cellar such as a room, basement, garage or
outdoors.
BTU/H –British thermal units/hour. A unit of measurement to describe the power of heating and
cooling system.
CFM –Cubic feet per minute. A unit of measurement for the amount of air handled by the fan.
Condensate / Condensation –The water formed out of the air when it is cooled below a certain
temperature (called dew point). Often referred to as “sweating” on pipes and cold surfaces. This water
collects at the bottom of the evaporator or cooling coil and drains out of the unit through the drain
line.
Condensing Unit (Heat Rejection) –The condensing unit uses the compressor, condenser coil and
fan to remove heat from the refrigerant to the ambient air outside the wine cellar. The word condenser
refers to the condensation of the refrigerant from gas to liquid phase.
CSA/ETL –Canadian Standards Association/Edison Testing Laboratory (product compliance to
safety standards)
F –(Degrees) Fahrenheit
Fan Coil Unit (Evaporator Cooling) –The fan coil unit uses the cooling coil and the fan to remove
heat from the air inside the wine cellar to the refrigerant, cooling the air and condensing moisture out
of the air. The word evaporator refers to the evaporation of the refrigerant from liquid to gas phase in
the coil. The fan coil unit is ducted to or can be placed inside the wine cellar.
Grille or Diffuser –Inlet or outlet plates to direct the airflow or protect the inside of the unit.
Heat Gain / Loss –The amount of cooling or heating expressed in BTUH and watts transferred
between the wine cellar and the ambient space. The Wine Guardian must offset this heat/gain loss.
Inlet Air –The air returning from the wine room to the Wine Guardian fan coil.
I.D. –Inside diameter
NEC –National Electrical Code
O.D. –Outside diameter
Psig–Pounds force per square inch gauge pressure
Recovery –The amount of cooling the unit does to return the cellar to its set point temperature after
some new heat load is introduced, such as people or new cases of warm wine entering the cellar.
Return Air - The air leaving the cellar and returning to the inlet of the fan coil. (See Inlet Air above)
TXV –Thermal expansion valve
VAC –Volts alternating current
SP –Static pressure. Unit of measurement (inches of water column) of the pressure of the air handled
by the fan.
Set Point –The desired temperature or humidity set on the remote interface controller or humidistat.
Supply Air - The air entering the wine cellar from the discharge of the fan coil.

3
Receiving, Inspecting and Unpacking the Wine Guardian Unit
NOTE: Wine Guardian units are factory assembled and tested prior to shipment. The
Wine Guardian Ductless Split System consists of two separate components, the Wine
Guardian fan coil and condensing unit.
Each Wine Guardian component is shipped in a corrugated box. A shipment may include one or
more boxes containing accessories.
✓Lift at the designated handhold locations only or fully support from underneath.
✓Before opening, inspect the packing crates or boxes for obvious signs of damage or
mishandling.
✓Write any discrepancy or visual damage on the bill of lading before signing.
✓Inspect all equipment for any sign of damage caused during transit.
✓Report all visual or concealed damage to the carrier and file a claim immediately.
✓Thoroughly inspect the contents for any visible damage or loose parts.
Review the Packing Slip to Verify
✓Model number
✓Factory installed options
✓Unit accessories
Ifany itemslisted on the packing slipdonot match your order information, contactthe place of purchase
immediately.
IMPORTANT
If this procedure is not followed, the shipping company may reject the claim and the
consignee may suffer the loss. Do not return the shipment to the factory.

4
General Description
The Wine Guardian cooling unit is a professional grade, American-manufactured, split two-piece
climate control unit designed specifically for the storage of wine at cellar temperatures. It is designed
for easy installation and operation. Wine Guardian uses digital electronic controls and R-134a
refrigerant. The entire Wine Guardian system is tested at the factory. All components are of a high
quality standard commercial grade.
The system is approved by ETL according to UL 1995 and CSA safety standards. All wiring complies
with NEC. Each Wine Guardian fan coil section is furnished with a sealed, UL-approved power cord
and plug.
All Wine Guardian 50Hz units carry the CE mark. Each unit is furnished with a sealed, CE- approved
power cord and plug.
The Wine Guardian Ductless Split System Contains
1. A Wine Guardian Fan Coil Unit with:
✓A thermal expansion valve to control the flow of refrigerant into the evaporator coil
✓A removable control panel for ease of service
1a. Optional
✓Optional: Remote interface controller and control cable
2. A Condensing Unit with:
✓A filer dryer to keep the refrigerant clean and free of contaminants
✓A sight glass to observe the level of refrigerant
✓A manual reset high pressure switch on the discharge to protect the compressor from high
pressures.
✓Auto reset low pressure switch
✓24-volt contactor for control of fan coil unit
✓Oversize receiver
✓Service valves
✓Outdoor enclosure
2a. Included with Low Ambient Option
✓Crankcase heater
✓LAC valve
✓Outdoor enclosure

5
Wine Guardian Fan Coil Unit
The Wine Guardian fan coil unit meets its rated capacities for total BTU/H and CFM (watts and M3/h
for 50Hz) at design cellar conditions and external static pressures. The fan is a motorized impeller
type, statically and dynamically balanced, and uses permanently lubricated direct drive motors
requiring no maintenance.
The Wine Guardian fan coil section operates as air passes through the sides of the decorative front
panel and through the cooling coil where it is cooled by the refrigerant inside the coil. This causes any
excess humidity in the air to condense and be captured in the drain pan and piped outside the unit. Air
is then pressurized and discharged out of the unit through the top screened section. Optional heating
coils are located between the cooling coil and the fan. These coils heat the air to prevent low
temperatures within the cellar.
All exterior framing of the Wine Guardian is powder coated 0.063-inch gauge aluminum to prevent
rust and corrosion. All coils are aluminum tubes, aluminum fins, to prevent premature corrosion.
Each unit is provided with a pre-wired and tested local user interface controller mounted on the chassis
within the Wine guardian unit. The user interface controller has multiple control functions for cooling,
heating and humidification. It has a fully automatic mode to switch between heating and cooling.
Electrical Controls
Themainelectricalcontrolboardandcomponentsarelocatedonaseparatepanel,internaltothechassis. All
wiring is in accordance with the NEC. Wires are numbered and color coded to match the wiring
diagrams.
Electric power is supplied by a single factory-furnished cord and plug. All external controls are digital
and proprietary to Wine Guardian products. Only approved communication cable and Wine Guardian
controllers are suitable for proper system operation.
Condensing Unit
Compressors are rotary, self-lubricating, permanently sealed, hermetic reciprocating-type compressors,
with internal overload protection and capacitor start. They include a minimum of 24 months’
manufacturer’s warranty and an optional five-year warranty. Compressors are mounted on rubber-in-
shear isolators to reduce noise and vibration. Additional features include a liquid line filter drier,
Sporlan Head Master Controls, a liquid line receiver and refrigerant sight glass. Each unit is housed in
a painted aluminum enclosure suitable for outdoor installation. The outdoor enclosure has adequate
area for ventilation and refrigerant piping penetrations.
IMPORTANT
The air exhaust from the condensing unit is hot and will be 25°F to 35°F or 15°C to 20°C above the
entering temperature. The condensing units are rated for a maximum temperatureof 115°F(46°C).
The condensing unitsshould be installed in a well-ventilated areato ensure properair flow across
the condenser coil and to limit short cycling.

6
Accessories and Optional Equipment
Heating Coils
An optional heating coil is built in and requires no additional power source. The electric
heating option is factory installed and includes primary and secondary over-temperature
protection devices per UL and NEC.
Extended Compressor Warranty
The Wine Guardian uses only the best commercially available compressors on the market.
However, since the compressor is the single most expensive component in the unit, it is
recommended that you purchase the extended warranty option.
Low Ambient Option
A factory-installed low ambient option is available that makes the Wine Guardian capable of
exposure to low ambient temperatures. This feature maintains system pressures to prevent
freezing the cooling coil and heats the compressor oil reservoir. The low ambient option is
recommended whenever the condenser section is exposed to air temperatures below 40°F (4°C).
Condensate Pump
An optional Wine Guardian automatic condensate pump is available to pump the water to a
remote sink, drain pipe or outside. It requires aseparate120-voltelectrical outlet.5 0Hzmodels
require a separate 220/240-voltelectrical outlet.
Humidifier
Another popular option for the Wine Guardian is the Standalone humidifier. The humidifier is
sold and installed as a standalone system. Each humidifier is furnished with a communication
cable connection to plug into the Wine Guardian fan coil unit. It is then controlled by the same
user interface controller that is used for the operation of the Wine Guardian unit. The
humidifier requires a water supply and drain for operation.
Remote Temperature/Humidity Controller (see how to install on page 34)
The remote temperature/humidity controller (Remote Interface Controller) is intended to provide
a means for user interface at a remote location. The controller can be used as a remote
sensor/controller mounted within the wine cellar remote from the Ductless Split System. The
controller can also be used as a remote indicator (without sensor) mounted directly outside of the
wine cellar of the residence or building. The Remote Interface Controller includes a backlit face
for temperature and humidity indication along with controller set-up and operational functions.
Remote Temperature/ Humidity Sensor
The remote temperature/humidity sensor is intended to provide a means of sensing one or more
locations within the wine cellar and designed to work in conjunction with the Remote Interface
Controller or Local Interface Controller integral to the Wine Guardian Ductless Split System.
Multiple sensor readings are averaged and controlled to a single point. The sensors do not have
any temperature or humidity indication and must be mounted within the wine cellar.

7
Heater Option
The electric heat option includes an integral electric heating element, thermal overload protection
device and controls. The Wine Guardian will either cool or heat the air, but it is not designed to
do both at the same time.
Serving Temperature Option
The serving-temperature option allows a Wine Guardian unit to control to an extended
temperature range from 42° F to 64° F (5°C - 18°C). The serving temperature option consists of a
cooling coil mounted temperature sensor and control to prevent freeze up of the coil during low
temperature operation.
CAUTION
CAREFULLY FOLLOW THE INSTALLATION INSTRUCTIONS INCLUDED WITH THE HUMIDIFIER.
REFERTO THE INSTRUCTIONS CONTAINED IN THE BOX FORTHE HUMIDISTAT.

8
Overview of Ductless
splitsystem fan coil
View from Right Rear with Access Panel and Side Panels Removed
View from bottom Rear
of Evaporator Indoor Unit
SUPPLY AIR WIH
ADJUSTABLE
LOUVERS
RETURN AIR
CONTROL
PANEL

9
Wine Guardian Specification Sheet

10
Refrigeration Illustration of the System

11
Ductless dimensional drawing for models SS018 and WGS25

12
Wiring diagram for SS018

13
Wiring diagram for WGS25
Fig.5

14
Wiring Diagram for SS018 and WGS25 Condensing Unit

15
Safety
Safety Message Conventions
Safety messages contained in this manual, DANGER, WARNING, and CAUTION are bold
and highlighted in red for quick identification.
Danger
A Danger message indicates an imminently hazardous situation which, if not avoided, results in
death or serious injury. Messages identified by the word DANGER are used sparingly and only
for those situations presenting the most serious hazards.
Following is a typical example of a Danger message as it could appear in the manual:
DANGER
HIGHVOLTAGE - RISKOF SERIOUS INJURY OR DEATH
High voltages are presentin the cabinets.
Before opening panels turn off all power.
Use the Lockout/Tagout procedure.
Warning
A Warning message indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
Following is a typical example of a Warning message as it could appear in the manual :
WARNING
RISKOF PERSONALINJURYORDAMAGETOEQUIPMENT
Modification to the equipmentmay causeinjury.
Caution
A Caution message indicates a potentially hazardous situation which, if not avoided, could
result in minor or moderate injury. It may also be used to alert against unsafe practice.
Following is a typical example of a Caution message as it could appear in the manual:
CAUTION
RISK OF PERSONAL INJURY OR DAMAGE TO EQUIPMENT
Improper installation may result in the equipment malfunctioning and a safety hazard.
Read all of the installation instructions before installing the Wine Guardian unit.
IMPORTANT
The equipment described in this manual uses electricity. When using this equipment, be
sure to follow the safety procedures outlined in this manual.