AIRINNOVATIONS WINE GUARDIAN DS050 Technical Document

15h0183-00
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Legacy Ducted Split
Wine Cellar Cooling Systems
Installation, Operation and
Maintenance Guide
Model DS025, DS050, DS088, DS200 (60Hz)
Model WGS40, WGS75, WGS100, WGS175 (50Hz)
Manufactured by:
wineguardian.com 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 03-2021
© Air Innovations, 2021 Part# 15H0183-00 REV A

Table of Contents
Directory of Terms..............................................................................................6
Receiving, Inspecting and Unpacking the Wine Guardian Unit.........................8
Review the Packing Slip to Verify:............................................................................................................8
Check the fan coil unit for..........................................................................................................................8
Check the condensing unit for:...................................................................................................................8
General Description............................................................................................9
The Wine Guardian Ducted Split System Contains...................................................................................9
Wine Guardian Fan Coil Unit ..............................................................................................................10
Electrical Controls................................................................................................................................10
Condensing Unit...................................................................................................................................10
Accessories and Optional Equipment.......................................................................................................11
Condensate Pump (Part # 94H0018-00)...............................................................................................11
Duct Collars and Flexible Ducts...........................................................................................................11
Extended Compressor Warranty...........................................................................................................11
Heating Coils........................................................................................................................................11
Humidifier............................................................................................................................................11
Xtreme Low Ambient (see illustrations on following page)................................................................11
Xtreme Low Ambient Illustrations.......................................................................................................12
Overview of the Wine Guardian fan coil .............................................................................................13
Wine Guardian dimension for split ducted systems DS025, WGS40, DS050, WGS75, DS088,
WGS100, DS200, and WGS175 ..........................................................................................................13
Condensing unit dimensions ................................................................................................................14
Refrigeration Illustration of the system................................................................................................15
Magnified Image of the Condensing Unit............................................................................................16
Wiring Diagram for DS025, DS050, WGS40, & WGS75...................................................................17
Wiring Diagram for DS088 and WGS100 ...........................................................................................18
Wiring Diagram for DS200 and WGS175 Units..................................................................................19
Wiring Diagram for Replacement Fan Motor (XR 115/230 Models)..................................................20
Wiring Diagram for DS025 and WGS40 Condensing Unit .................................................................21
Wiring Diagram for DS050 and WGS75 Condensing Unit .................................................................22
Wiring Diagram for DS088 and WGS100 Condensing Unit..............................................................23
Wiring Diagram for DS200 and WGS175 Condensing Unit ...............................................................24
Ducted Split Systems Specifications - 60Hz Models DS025, DS050, DS088, DS200........................25
Ducted Split System Specifications –50 Hz Models WGS40, WGS75, WGS100, WGS175.............26
Safety............................................................................................................... 27
Safety Message Conventions....................................................................................................................27
Danger..................................................................................................................................................27
Warning................................................................................................................................................27
Caution.................................................................................................................................................27

Lockout/Tagout Procedure.......................................................................................................................28
Safety Considerations...............................................................................................................................28
Safety Hazards......................................................................................................................................28
Electrical Hazards.................................................................................................................................28
Electrical Shock Hazards......................................................................................................................28
Hot Parts Hazards.................................................................................................................................28
Moving Parts Hazards..........................................................................................................................28
Equipment Safety Interlocks ....................................................................................................................29
Main Power Switch..................................................................................................................................29
Installation........................................................................................................ 31
Pre-installation Test..................................................................................................................................31
Air Flow Diagram...................................................................................................................................31
Planning the Installation .................................................................................. 33
Addressing Items in the Planning Process................................................................................................33
Performing a Pre-Installation Check........................................................................................................33
Installing the Fan Coil Unit .............................................................................. 34
Floor Mounting.....................................................................................................................................34
Wall Mounting .....................................................................................................................................34
Ceiling Mounting .................................................................................................................................35
Typical Mounting Arrangements .........................................................................................................35
Handling and Installation .....................................................................................................................35
Floor Mount..............................................................................................................................................36
Wall Mount..............................................................................................................................................37
Fig. 3........................................................................................................................................................37
Installing the Ductwork and Grilles.................................................................. 38
Duct Collars..............................................................................................................................................38
Location of Supply and Return Grilles.....................................................................................................38
General Duct Recommendations..............................................................................................................39
Reducing Noise from the Unit..................................................................................................................39
Installing the Condensate Drain Connection .................................................. 40
Installing the Drain Line...........................................................................................................................40
Priming the Drain Trap.............................................................................................................................40
Wiring the Fan Coil Unit for Power.................................................................. 41
Installing the Condensing Unit ........................................................................ 42
Installation of Interconnecting Refrigerant Lines (Suction and Liquid) ..................................................42
Split System Interconnecting Line Sizing Chart..................................................................................43
Sample Piping Configurations..................................................................................................................45
Leak Checking and Evacuation Process...................................................................................................46
Wiring...................................................................................................................................................46
Refrigerant Charging............................................................................................................................48

Determining the amount of charge...........................................................................................................48
Procedures for Charging System with Head Pressure Control.................................................................48
Superheat..............................................................................................................................................50
Sub-Cooling .........................................................................................................................................50
System charging amount………………………………………………………………………… …50
Split System Operations Chart .............................................................................................................51
Installing the Thermostat and Communication Cable..................................... 54
Controller Specification ................................................................................... 55
Mounting the Remote Interface Controller (Wired)......................................... 56
Mounting the Remote Interface Controller (Wireless) .................................... 57
Installation of the Wine Guardian Remote Sensor ......................................... 58
Mounting the Wired Remote Sensor (Wired) ..........................................................................................58
Mounting the Remote Sensor (Wireless) .................................................................................................60
Remote Sensor Pairing Instructions –Multiple Sensors (Wireless)................ 61
Standard Controller Functions ........................................................................ 62
Alarm Codes.............................................................................................................................................69
Inspection and Start Up Checklists................................................................. 71
Receiving and Inspecting .........................................................................................................................71
Handling and Installing............................................................................................................................71
Starting-up the Unit..................................................................................................................................71
WG Split System Start-up checklist………………………………………………………… 72
Starting-up and Operating the Wine Guardian Split System.......................... 74
Turn on the Unit.......................................................................................................................................74
Testing the Fan.........................................................................................................................................74
Running the Unit......................................................................................................................................74
Cycling the Unit.......................................................................................................................................75
Setting the Remote Interface Controller...................................................................................................75
Regulating the Wine Cellar Temperature.................................................................................................75
Changing the Air Flow Direction.............................................................................................................75
Maintenance .................................................................................................... 76
General.....................................................................................................................................................76
Cleaning the Condensate Drain System...................................................................................................77
Cleaning the Humidifier...........................................................................................................................77
Heating Coil Option.................................................................................................................................77
Maintenance Schedule.................................................................................... 78
Monthly....................................................................................................................................................78
Yearly.......................................................................................................................................................78
Troubleshooting............................................................................................... 79

Typical start up problems.........................................................................................................................79
Unit does not start up................................................................................................................................79
Unit is operating and blows evaporator air but the supply air is not colder than the return air
from the cellar.........................................................................................................................................80
Humidity Issues........................................................................................................................................81
Too low, without optional humidifier....................................................................................................81
Humidity too low, with optional humidifier..........................................................................................81
Humidity too high when unit is running but not cooling ...................................................................81
Humidity too high when unit is not running........................................................................................81
Humidity too high when unit is running and cooling.........................................................................81
Unit operates but the power switch light is not ON .................................................................................82
Unit is leaking water.................................................................................................................................82
Unit is running properly, but the sound of the unit objectionable............................................................82
High Pressure Switch has Shut the Unit Down........................................................................................82
Instructions to Reset High Pressure Switch..............................................................................................82
Advanced Troubleshooting.............................................................................. 83
Evaporator Coil is Freezing......................................................................................................................83
Unit cycles on and off more than 8 times/hr......................................................................................83
Replacing the blowers..............................................................................................................................83
Contact and Warranty Information .................................................................. 84
Warranty .......................................................................................................... 85
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
RSS GEN (English)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic
Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired
operation of the device.
RSS GEN (French)
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation,
Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation
est autorisée aux deux conditions suivantes :
1. L’appareil ne doit pas produire de brouillage;
2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible
d’en compromettre le fonctionnement.

6
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.
Flexible Duct –Round ducts with steel reinforced plastic liners, a layer of insulation
and an outer plastic layer used to convey the air from the unit to the wine cellar or
ambient space.
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 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
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)

7
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.

8
Receiving, Inspecting and Unpacking the Wine Guardian Unit
NOTE: Wine Guardian units are factory assembled and tested prior to shipment. The
Wine Guardian Ducted 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.
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.
Review the Packing Slip to Verify:
✓Model number
✓Factory installed options
✓Unit accessories
If any items listed on the packing slip do not match your order information, contact the place of
purchase immediately.
Check the fan coil unit for:
✓An electrical power cord
✓A remote interface controller with communication cable plugged into side of unit
✓A drain line coming out of the unit
✓One supply duct collar and one return duct collar
Check the condensing unit for:
✓Weather proof enclosure, top and sides
IMPORTANT
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.

9
General Description
IMPORTANT
Design and specifications are subject to change without notice
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 fan coil section and the condensing unit is tested at the factory.
All components are of a high quality standard commercial grade.
The entire 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.
The Wine Guardian Ducted 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 built-in condensate drain trap. No external trap is required.
✓A removable control panel for ease of service
✓Supply duct collar
✓Return duct collar
✓Remote interface controller and control cable
2. A Condensing Unit with:
✓A filter 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
✓Outdoor enclosure
✓Crankcase heater
✓Low ambient refrigeration controls (see page 11 for Xtreme Low Ambient option)

10
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 coil unit is capable of rated
CFM (M3/h for 50Hz) against the static pressure imposed by recommended ductwork. 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 cooling coil and 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 then enters the fan where it is pressurized and
discharged out of the unit through one of five openings. Optional heating coils are located between the
cooling coil and the fan. These coils heat the air to prevent low temperatures in 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 protect against premature
corrosion. The unit uses an external drain to remove excess moisture and not reintroduce it into the
cellar or ambient space. Removable, multiple access doors are provided to facilitate cleaning and
maintenance, duct connections, and access to components and wiring. The fan coil has at least five
discharge outlets to facilitate custom installations.
Each unit is provided with a pre-wired and tested remote interface controller for remote mounting
within the wine cellar. The remote interface controller has multiple control functions for cooling,
heating and operation. It has a fully automatic mode to switch between heating and cooling.
Electrical Controls
Themain electrical control boardand components arelocated onaseparatepanelaccessiblethroughasidedoor
panelorby removal oftheon/off panel fromthesystemchassis.All wiring isin accordancewiththeNEC.
Wires arenumberedandcolorcodedtomatch thewiringdiagrams.
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 (RJ-9) and Wine
Guardian controllers are suitable for proper system operation.
Condensing Unit
Compressors are self-lubricating, permanently sealed, hermetic reciprocating-type compressors, with
internal overload protection and capacitor start. The condensing unit includes a two-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.
All units come factory-configured with low-ambient protection for exposure to cold weather. This
feature controls the system pressures to prevent evaporator coil freezing (based on head pressure) and
heats the compressor coil reservoir.