Wine Guardian D050V User manual

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Ducted and Ducted Vertical
Wine Cellar Cooling Systems
Installation, Operation and Maintenance Manual
60Hz Models: D025, D050, D088, D0200, D050V, D088V
50Hz Models: WG40, WG75, WG100, WG175
Manufactured by:
Syracuse, NY
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.
Edition 02-2019 (Original Instructions)
© Air Innovations 2019
Part No. 15H0127-00

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TABLE OF CONTENTS
Directory of Terms...........................................................................................................6
Receiving, Inspecting and Unpacking the Wine Guardian Unit........................................7
Receiving and Inspecting the Unit ........................................................................................7
Review the Packing Slip to Verify............................................................................................7
Check the unit for....................................................................................................................7
General Description.........................................................................................................8
Standard Specifications .................................................................................................9
The Wine Guardian Unit Contains ........................................................................................9
Accessories and Optional Equipment............................................................................10
Heating Coils ........................................................................................................................10
Water Cooled Option ............................................................................................................10
Duct Collars and Flexible Ducts............................................................................................10
Extended Compressor Warranty...........................................................................................10
Low Ambient Option..............................................................................................................10
Condensate Pump................................................................................................................10
Humidifier and Humidistat.....................................................................................................10
High Ambient –D025, D050, WG40 and WG75 models only.................................................10
Overview of the Wine Guardian Unit ...........................................................................11
Overview Illustration of the Wine Guardian Unit....................................................................12
Overview Illustration of water-cooled system ........................................................................14
Wiring diagrams D025 and D050 and D050V........................................................................15
Wiring diagrams D025 and D050 and D050V Continued ......................................................15
Wiring diagram D088 and D200 and vertical model D088V...................................................17
Wiring diagram water-cooled D025 and D050.......................................................................18
Wiring diagram water-cooled D088 and D200.......................................................................19
Wiring Diagram Model WG40...............................................................................................20
Wiring Schematic Model WG75 ............................................................................................21
Wiring Schematic Model WG100 ........................................................................................22
Wiring Schematic Model WG175 ........................................................................................23
Wine Guardian dimensional data..........................................................................................24
Wine Guardian dimensional data..........................................................................................25
Wine Guardian Dimensional Data for 60Hz models..............................................................25
Wine Guardian Dimensional Data for 50Hz models ..........................................................25
Wine Guardian Specifications sheet –60Hz models.............................................................26
Wine Guardian Specifications sheet –50Hz models.............................................................27
Safety ............................................................................................................................28
Safety Message Conventions .............................................................................................28
Danger..................................................................................................................................28
Warning................................................................................................................................28
Caution.................................................................................................................................28
Lockout/Tagout Procedure ..................................................................................................29

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Safety Considerations...........................................................................................................29
Safety Hazards.....................................................................................................................29
Electrical Hazards.................................................................................................................29
Electrical Shock Hazards......................................................................................................29
Hot Parts Hazards ................................................................................................................29
Moving Parts Hazards...........................................................................................................30
Sound Hazard.......................................................................................................................30
Equipment Safety Interlocks .................................................................................................30
Main Power Switch ...............................................................................................................30
Installation .....................................................................................................................32
Pre-installation Test..............................................................................................................32
Air Flow Illustration................................................................................................................33
Air Flow Illustration for Vertical Model...................................................................................33
Planning the Installation.................................................................................................34
Addressing Items in the Planning Process............................................................................34
Performing a Pre-installation Check......................................................................................34
Locating the Unit...................................................................................................................34
Grilles ...................................................................................................................................35
Reducing Noise from the Unit...............................................................................................35
Installing the Unit Outdoors...................................................................................................35
Mounting the Unit ..........................................................................................................36
Floor Mounting......................................................................................................................36
Wall Mounting.......................................................................................................................36
Ceiling Mounting...................................................................................................................36
Installing the Condensate Drain Connection.........................................................................36
Installing the Drain Line ........................................................................................................37
Priming the Drain Trap..........................................................................................................37
Wiring the Unit for Power...............................................................................................37
Installing the Thermostat and Communication Cable ....................................................39
Mounting the Remote Interface Controller.....................................................................39
Installation of the Wine Guardian Remote Sensor.........................................................41
Mounting the Remote Sensor ...............................................................................................41
Joining Communication Cable.......................................................................................43
Standard Controller Functions.......................................................................................44
Installing the Ductwork and Grilles ................................................................................50
Recommended Insulated Flexible Ductwork Sizing Chart .................................................50
Location of Supply and Return Grilles...................................................................................51
General Duct Recommendation............................................................................................51
Using Ductwork.....................................................................................................................52
Cold Air to/from Wine Cellar..................................................................................................52
Warm Air to/from Condenser ................................................................................................52
Typical Mounting Arrangements ..................................................................................53
Duct Adapter Sizes........................................................................................................54
Ducting Options ...................................................................................................................55

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Single Outlet Duct Installation .............................................................................................55
Inspection and Start-up Checklists................................................................................56
Receiving and Inspecting......................................................................................................56
Handling and Installing..........................................................................................................56
Starting-up the Unit...............................................................................................................56
Starting Up and Operating the Wine Guardian..............................................................57
Turn on the Unit....................................................................................................................57
Testing the Fan.....................................................................................................................57
Running the Unit ..................................................................................................................57
Cycling the Unit.....................................................................................................................58
Setting the Thermostat..........................................................................................................58
Regulating the Wine Cellar Temperature..............................................................................58
Changing the Air Flow Direction............................................................................................58
Maintenance..................................................................................................................59
General.................................................................................................................................59
Cleaning the Filters...............................................................................................................59
Cleaning the Condensate Drain System ...............................................................................60
Flushing a water regulating valve –water-cooled models only..............................................60
Cleaning the Humidifier (optional).........................................................................................60
Heating Coil Option...............................................................................................................60
Low Ambient Option..............................................................................................................61
Maintenance Schedule ................................................................................................61
Monthly.................................................................................................................................61
Yearly ...................................................................................................................................61
Troubleshooting ............................................................................................................62
Typical Start-up Problems ...................................................................................................62
Unit Does Not Start-up ........................................................................................................62
Power Switch Light is Off......................................................................................................62
Power switch light is on and the thermostat light is off ..........................................................62
Power switch light is on and the thermostat light is on ..........................................................62
Unit is operating and blows evaporator air, ........................................................................63
Problems Controlling Cellar Temperature.............................................................................63
Cellar Temperature too cold (below 51°F or 10°C) when unit is running...............................63
Cellar Temperature is too cold (below 51°) when unit is not running.....................................63
Problems Controlling Cellar Humidity....................................................................................64
Humidity too low or supply air is too cold, without optional humidifier....................................64
Humidity too low, without optional humidifier.........................................................................64
Humidity too low with optional humidifier...............................................................................64
Humidity too high when unit is running but not cooling..........................................................64
Humidity too high when unit is not running............................................................................65
Humidity too high when unit is running and cooling...............................................................65
Other Miscellaneous Problems .............................................................................................65
Unit operates but the power switch light is not ON................................................................65
Unit is leaking water..............................................................................................................65
Unit is running properly, but the sound of the unit is objectionable........................................65

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Noise is from airflow..............................................................................................................65
Redirect airflow.....................................................................................................................65
High Pressure Switch has Shut Down the Unit ..........................................................66
Instructions to Reset High Pressure Switch .......................................................................66
Advanced Troubleshooting............................................................................................67
Evaporator coil is freezing.....................................................................................................67
High pressure switch keeps tripping......................................................................................67
Unit cycles on and off more than 8 times/hr..........................................................................67
High pitched or loud rubbing noise, clanking or vibration ......................................................67
Replacing the blowers...........................................................................................................67
Warranty........................................................................................................................68
Contact and Warranty Information.................................................................................69
Contact Information...............................................................................................................69
Warranty and Warranty Procedure .....................................................................................69

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Directory of Terms
Ambient Air –The surrounding area outside the cellar such as a room, basement, garage or outdoors.
CACLS –Cubic litres per second. A unit of measurement for the amount of air handled by the fan.
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.
Condenser (Heat Rejection) Section / Coil –The Condenser Section 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.
CE–Certificate of European conformity
CSA/ETL –Canadian Standard Association/Electric Testing Laboratory
Exhaust Air –The air leaving the evaporator or condenser section of the Wine Guardian unit.
Evaporator (Cooling) Section / Coil –The Evaporator Section 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 Evaporator Section is connected to or 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 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 load.
Inlet Air –The air entering the evaporator and condenser sections of the Wine
Guardian unit.
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
NEC –National Electrical Code
Recovery –The amount of cooling the unit does to return the cellar to its set point temperature
after some new 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 evaporator coil.
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 thermostat or humidistat.
Supply Air - The air entering the cellar from the discharge of the evaporator coil.

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Receiving, Inspecting and Unpacking the Wine Guardian Unit
Receiving and Inspecting the Unit
NOTE: Wine Guardian units are factory assembled and tested prior to shipment.
Wine Guardian units are shipped in individual corrugated boxes.
✓Lift at the designated handhold locations only or fully support from underneath. A
shipment may include one or more boxes containing accessories.
✓Before opening the container, 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
If any items listed on the packing slip do not match your order information, contact the place
of purchase immediately.
Check the unit for
✓An electrical power cord
✓A thermostat with communications cable plugged into side of unit
✓A drain line coming out of the unit
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.

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General Description
Refer to overview illustrations starting on page 12
The Wine Guardian cooling unit is a professional grade, American manufactured, self-contained
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 unit is tested at the factory and shipped as a single package. All
components are of a high quality, standard commercial grade. The entire unit is approved by ETL
according to UL 1995 and CSA safety standards. All wiring complies with NEC. Each unit 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 wine cellar cooling systems in horizontal and vertical modes, are completely
self-contained and includes either an integral air cooled or water-cooled condenser (horizontal
ducted model only, does not include vertical systems). The units are functionally divided into two
sections, the evaporator (or cooling section) and the condenser (or heat rejection section). Each
section contains a coil to add or remove heat and a fan to move the air through the coil and into or
out of the cellar or adjacent space. The Wine Guardian cooling systems are designed to be used as
a remotely mounted unit with external ductwork connections.
The Wine Guardian unit is completely self-contained and includes either an integral air cooled or
water-cooled condenser. The unit is functionally divided into two sections, the evaporator (or
cooling section) and the condenser (or heat rejection section). Each section contains a coil to add
or remove heat and a fan to move the air through the coil and into or out of the cellar or adjacent
space. The Wine Guardian unit is designed to be used as a remotely mounted unit with external
ductwork connections.
Air first 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.
Optional heating coils are located between the cooling coil and the fan. These coils heat the air to
prevent low temperatures in the cellar. The thermostat, located in the cellar, turns on the cooling
or heating as needed to maintain its setpoint. It does not allow the cooling and heating to be on at
the same time.
The compressor and condenser sections are activated whenever the unit is cooling. The condenser
fan draws air from the surrounding or ambient space either directly or through a duct. The air is
first drawn through a filter to remove any airborne dust particles to keep the coil clean. The air
flows through the condenser coil where it absorbs heat from the refrigerant in the coil. The air is
then discharged out of the unit by the condenser fan.
The water-cooled Wine Guardian system requires cooling water to be piped to the unit for proper
operation. The cooling water absorbs the refrigerant heat through the unit’s water-cooled
condenser coil. Warm water is then directed out of the unit back to the cooling water system or to
a drain.
IMPORTANT
Theair exhaust from the condenser fan on air-cooled units is hot and will be 25 to 35 degrees F
(15 –18 degrees C) above the entering temperature. This may cause overheating problems in the
summer months, especially with high humidity. Exhaust the hot air to the outside. In the winter, this
heated air can help to heat the surrounding space.

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Standard Specifications
NOTE: Design and specifications are subject to change without notice.
The Wine Guardian Unit Contains
✓A thermal expansion valve to control the flow of refrigerant into the evaporator coil
✓A manual reset high pressure switch to protect the system from high pressures
✓The unit uses only R-134a refrigerant
✓A built-in condensate drain trap. (no external trap is required)
The Wine Guardian 60Hz models meets or exceeds its rated capacities for total BTU/H and CFM
at design cellar conditions and external static pressures. The Wine Guardian 50Hz models meets or
exceeds its rated capacities for total watts and cubic liters per second at design cellar conditions and
external static pressures. Both the evaporator and condenser fans are capable of rated CFM against
the external static pressure imposed by recommended ductwork. Both fans are motorized impeller
plug fans, statically and dynamically balanced, and use permanently lubricated, direct drive motors
that require no maintenance.
All exterior framing of the Wine Guardian is powder coated 0.063” (1.6mm) gauge aluminum to
prevent rust and corrosion. All coils are aluminum tubes with aluminum fins. 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 condenser coils have pre-filters on the inlet to prevent dust and dirt from fouling the coils,
thereby reducing capacity. Each unit has at least three discharge outlets on both the evaporator and
the condenser coils to facilitate custom installations. Water-cooled units have copper straight tube
connections for both cooling water inlet and outlet.
Each unit is provided with a pre-wired and tested electronic digital thermostat for remote mounting
in the cellar. The thermostat has multiple control functions for the fans, cooling and heating. It has a
fully automatic mode to switch between heating and cooling.
Compressors are rotary, self-lubricating, permanently sealed, hermetic reciprocating type compres-
sors, with internal overload protection and capacitor start with a minimum of one-year
manufacturer’s warranty and an optional five-year warranty. Compressors are mounted on rubber-in-
shear isolators to reduce noise and vibration.
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.

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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.
Water Cooled Option
A water-cooled option is available that uses a tube-in-tube heat exchanger in place of the condenser coil
and fan. Waste heat from the refrigerant is transferred to the water. A pressure regulating valve is used
to regulate the flow of water to maintain head pressure.
Duct Collars and Flexible Ducts
Ducting for the Wine Guardian is sold in kits by size for each unit. Each kit contains two adapter collars,
one 25-foot (7.3 meters) length of round flexible duct and two straps. The number of duct kits needed
depends on the layout. The size of the kit depends on the model Wine Guardian selected. Follow
installation instructions carefully. Poorly or incorrectly installed ducts can degrade the performance of
your unit dramatically.
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 controls the condenser fan operation based on head pressure
and heats the oil reservoir. The Low Ambient Option (LAO) is recommended whenever the condenser
section is exposed to air temperatures below 40 degrees F (4 degrees C). This can occur if the unit is
placed in a garage or under an outdoor canopy, or if the unit is located inside a heated space but the
condenser air is ducted in from the outside.
Condensate Pump
An optional Wine Guardian automatic condensate pump is available to pump the water to a sink or
outside. It requires a separate 120-volt electrical outlet for 60Hz models and 220/240-volt electrical
outlet for 50Hz models.
Humidifier and Humidistat
Another popular option for the Wine Guardian is a humidifier. The humidifier is available as a
freestanding unit powered by the Wine Guardian system, as freestanding unit with its own power cord
and humidistat or as an integrated unit that bolts to the side of any Wine Guardian ducted system. The
Wine Guardian humidifier requires a water supply and drain for operation.
CAUTION
CAREFULLY FOLLOW THE INSTALLATIONS INSTRUCTIONS INCLUDED WITH THE HUMIDIFIER. REFER
TO THE INSTRUCTIONS CONTAINED IN THE BOX FOR THE HUMIDISTAT.
High Ambient –D025, D050, WG40 and WG75 models only
A factory installed high ambient option is available that makes the Wine Guardian capable of exposure
to high ambient temperatures. The high ambient feature consists of high output, fan condenser, and fan
and coil. The high ambient option is recommended whenever the condenser section is exposed to air
temperatures above 100 degrees F to a maximum of 120 degrees F (37 to 48 degrees C)

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Overview of the Wine Guardian Unit
Refer to overview illustrations starting on page 13
Cabinet – The cabinet and access doors are constructed of aluminum with a powder coated finish for
corrosion protection and an attractive, maintenance-free appearance. Areas in contact with cold
temperatures are lined with insulation to prevent condensation .
Condensing Section – Ambient air is circulated through the condenser section by a direct drive,
permanently lubricated, motorized impeller blower. This section also contains the compressor and the
electrical controls. If the water-cooled option is purchased, a heat exchanger is used in place of the
condenser coil and blower.
Evaporator Section – Cellar air is circulated through the evaporator section by another blower the
same as above. The large evaporator coil face area eliminates condensate carry-over, reduces air
pressure drop and optimizes heat transfer. A drain pan is located directly below the coil to capture
condensate and is fabricated from aluminum to prevent rust and corrosion. The electric heating coil, if
ordered, is factory installed between the evaporator coil and the blower, and is complete with
contactor(s) and limit controls.
Electrical Controls – Most of the electrical components and controls are located in a separate area
accessible on the side of the unit. All wiring is in accordance with the NEC. Wires are numbered and
color coded to match the wiring diagrams.
Factory Tested – All Wine Guardian units are factory run-tested and checked for operational
performance.
Filters –Nominal 1-inch (25mm) thick filter is provided on the condenser inlet to protect the coils
from dust and dirt. This filter is washable and reusable.
Humidity Option – The optional humidifier comes fully assembled and tested for field installation
onto the Wine Guardian without any additional electrical power wiring. It automatically adds
moisture into the cellar by the evaporation of water over a distribution pad. The same Wine Guardian
thermostat controller supplied with the Wine Guardian unit automatically controls humidity as well as
temperature.
Internal Drain Trap - Water condensate from the evaporator coil fills the trap and forms a seal to
prevent air from being drawn back through the drain tube. This allows the drain pan to drain freely.
No external trap is required.
Refrigerant Circuit –The factory charged circuit includes a thermal expansion valve with an
external equalizer, sight glass with moisture indicator, a filter dryer, an automatic low pressure
switch, and a manual reset high pressure switch. For the low ambient option, an automatic pressure
switch controls the operation of the condenser blower and a heating element is added to the compres-
sor oil reservoir. See Fig 1 - Refrigeration Illustration on next page.
Supply/return grilles –Ap owder-coated steel single direction grille is provided on the outlet of
condenser section. One grille is provided on an outlet. The grille is interchangeable with access doors
to control and direct the airflow. These grilles may be used in the room on the end of the ducts in
ducted systems.

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Overview Illustration of the Wine Guardian Unit
Fig. 1
Fig. 2
Low Pressure
Vapor
High Pressure
Liquid

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Overview Illustration of Vertical Ducted Models
Evaporator
(cooling) coils
Thermal
expansion valve
Drain pan
Compressor
Outlet drain tube
Condenser coils
High pressure
switch
Filter/dryer
Internal drain trap

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Overview Illustration of water-cooled system
Fig. 3
Fig. 4
Water In
Water In
Water Out

15
Wiring diagrams D025 and D050 and D050V
Fig.5

16
Wiring diagrams D025 and D050 and D050V Continued
Fig.6

17
Wiring diagram D088 and D200 and vertical model D088V
Fig.7

18
Wiring diagram water-cooled D025 and D050
Fig.8

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Wiring diagram water-cooled D088 and D200

20
Wiring Diagram Model WG40