AIRINNOVATIONS WINE GUARDIAN Sentinel Series User manual

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Ducted Self-Contained
Wine Cellar Cooling Systems
Installation, Operation and Maintenance Manual
60Hz Models: DP25
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 12/2021 (Original Instructions)
© Air Innovations 2021
Part No. 15H0327-00

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Table of Contents
Safety...........................................................................................................................................................................3
Lockout/Tagout Procedure................................................................................................................................4
Safety Warnings ...................................................................................................................................................4
Receiving, Inspecting and Unpacking.................................................................................................................4
Directory of terms.....................................................................................................................................................5
General Overview .....................................................................................................................................................6
Accessories/Options...........................................................................................................................................8
Component Overview..........................................................................................................................................9
Terminal Strip......................................................................................................................................................12
Wiring Diagrams.................................................................................................................................................13
Dimensions/Specifications..............................................................................................................................15
Specifications......................................................................................................................................................17
Installation................................................................................................................................................................18
Pre-Installation....................................................................................................................................................18
Pre-Installation Planning..................................................................................................................................18
Reducing Noise Generation.............................................................................................................................19
Ductwork ..............................................................................................................................................................19
Duct Collar and Panel Adjustment.................................................................................................................21
Drain Line.............................................................................................................................................................22
Wiring to Power ..................................................................................................................................................22
Start-Up .....................................................................................................................................................................24
Maintenance.............................................................................................................................................................25
Flushing the Water Regulating Valve –Water-Cooled Only....................................................................26
Cleaning the Humidifier (Optional) ................................................................................................................26
Maintenance Schedule......................................................................................................................................26
Monthly.............................................................................................................................................................26
Yearly ................................................................................................................................................................26
Troubleshooting......................................................................................................................................................27
Resetting the High-Pressure Switch .............................................................................................................27
Contact and Warranty............................................................................................................................................29
Contact Information...........................................................................................................................................30
Warranty ...............................................................................................................................................................30

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Safety
The safety messages contained in this manual are highlighted in red bolded and for
quick identification. A Danger message indicates an imminently hazardous situation
which, if not avoided, can result in death or serious injury. Messages identified by the
word DANGER are used sparingly and only for those situations presenting the most
serious hazards. The following is a typical example of a Danger message as it could
appear in the manual.
HIGH VOLTAGE - RISK OF SERIOUS INJURY OR DEATH
High voltages are present in the cabinets.
Before opening panels turn off all power.
Use the Lockout/Tagout procedure.
The equipment covered by this manual is designed for safe and reliable operation when
installed and operated within its designed specifications. To avoid personal injury or
damage to equipment or property when installing or operating this equipment, it is
essential that qualified, experienced personnel perform these functions, using good
judgment and safe practices. See the following cautionary statements. Installation and
maintenance of this equipment is to be performed only by qualified personnel who are
familiar with local codes and regulations and are experienced with this type of
equipment.
Exposure to safety hazards is limited to maintenance personnel working in and around
the unit. When performing maintenance, always use the Lockout/Tagout procedure,
which is described in this chapter. Observe the maintenance safety guidelines in the
Wine Guardian Manual.
Electrical Hazards - Working on the equipment may involve exposure to dangerously
high voltage. Make sure you are aware of the level of electrical hazard when working on
the system. Observe all electrical warning labels on the unit. There are no electrical
safety lockouts installed within the unit. The power cord attached to the control box must
be disconnected from the power sources prior to working on any part of the electrical
system.
Hot Parts Hazards Electric - Resistance heating elements must be disconnected prior
to servicing. Electric heaters may start automatically, disconnect all power and control
circuits prior to servicing the unit to avoid burns.
Moving Parts Hazards - The motor and blower must be disconnected prior to opening
access panels. The motor can start automatically. Disconnect all power and control
circuits prior to servicing to avoid serious injuries or possible dismemberment. Be sure
to use the Lockout/Tagout procedure when working on these units.

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Lockout/Tagout Procedure
1. Turn off the power switch (indicator light should be off).
2. Unplug the unit from the electrical outlet and cover the outlet to prevent
accidentally plugging in the unit.
Safety Warnings
•Never reach into a unit while the fan is running.
•Disconnect all power sources before working on the unit.
•Check weights to be sure the rigging equipment can support and move the Wine
Guardian unit safely. Note: any specific rigging and installation instructions
located in the Installation section of the Wine Guardian Manual.
•Do not remove access panels until fan impellers have completely stopped.
Pressure developed by moving impellers can cause excessive force against the
access panels.
•Never pressurize equipment above specified test pressure (~300 psi).
•Always ground the outlet to provide adequate protection against voltage surges
and built-up static charges.
•Refer all servicing to qualified service personnel. Servicing is required when the
unit has been damaged in any way.
•Do not use extension cords.
•Do not modify the equipment; it may cause damage to the equipment and will
void the warranty.
Receiving, Inspecting and Unpacking
When receiving the unit, ensure the unit is undamaged and includes all ordered
accessories.
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.
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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Review the Packing Slip to verify the following:
✓Model #
✓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 these items:
✓An Electrical Power Cord connected to unit
✓24 volt terminal strip for connection to 24 volt thermostats
✓7’ of Clear Plastic Drain Hose
✓Quick Start Guide
Directory of terms
•Ambient Air –The surrounding area outside the cellar such as a room,
basement, garage or outdoors.
•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.

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•Inlet Air –The air entering the evaporator and condenser sections of the Wine
Guardian unit.
•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.
General Overview
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.
The Wine Guardian wine cellar cooling systems are completely self-contained and
includes either an integral air cooled or water-cooled condenser. 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.
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 optional 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

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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 air exhaust from the condenser fan on air-cooled units is hot
and will be 25 to 35 ° F (15 –18 ° 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 or to a space that is a minimum of 3x larger than the wine room. In
cold weather, this heated air can help to heat the surrounding space.
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. We do not recommend using a water-cooled system if you are
using a city water supply.
Each Ducted Self-Contained Wine Guardian system Contains:
✓A thermal expansion valve to control the flow of refrigerant into the evaporator
coil
✓A Filter Drier
✓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. (Do not install an external trap)
The Wine Guardian 60Hz models meet or exceed their rated capacities for total BTU/H
and CFM at design cellar conditions and external static pressures. The Wine Guardian
50Hz models meet or exceed their 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 aluminum to prevent rust
and corrosion. All evaporator coils are aluminum tubes and aluminum fins with a
protective anti-corrosion coating. 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.
Compressors are rotary, self-lubricating, permanently sealed, hermetic reciprocating
type compressors, 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

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and proprietary to Wine Guardian products. Only the approved communication cable
and Wine Guardian controllers are suitable for proper system operation.
Accessories/Options
Electric Heat
The electric heating option is factory installed and includes primary and secondary over-
temperature protection devices per UL and NEC.
Humidifier and Humidistat

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Another popular option for the Wine Guardian ducted self-contained unit is a humidifier.
The humidifier is available as a freestanding unit powered by the Wine Guardian system
with its own power cord and humidistat or as an integrated unit, which bolts to the side
of any Wine Guardian ducted system. The Wine Guardian humidifier requires a water
supply and drain for operation. Please refer to the Humidifier Manual for Installation
Instructions.
Duct Collar Kits
Ducting for the Wine Guardian is sold in kits by size for each unit. Each kit contains two
adapter collars, one 25’(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.
Component Overview
Cabinet – The cabinet (outer housing) is constructed of aluminum with a powder-coated
finish for corrosion protection.
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, similar to the condensing section. 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 contactors
and limit controls.
Electrical Controls – Most of the electrical components and controls are 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.
Filters –A nominal 1-inch-thick (25-mm-thick) filter is provided on the condenser inlet to
protect the coils from dust and dirt. This filter is washable and reusable.

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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.
Supply/Return Duct Collar –Four duct collars are provided with the unit –two for the
evaporator section and another two for the condenser section. Every duct collar is
interchangeable with the access doors, allowing you to control and direct the airflow.
Each single-direction duct collar is made of composite material. These duct collars can
be removed via the two quarter-turn screws.
Removable Panels –Insulated, removable, composite-material panels are provided on
both the evaporator and condenser of the unit. These panels can be removed via the
two quarter-turn screws.
Fig. 1

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Fig. 2
Fig. 3

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White = Heat
Cyan = 24 Volt AC Common
Yellow = Cool
Red = 24 Volt AC Power
Green = Fan
% = Humidity Connection
Fig. 4
Terminal Strip

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Wiring Diagrams
Fig. 5 (DP25)

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Fig. 6 (DP25-WC)

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Dimensions/Specifications

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Dimensional Data for 60Hz Models
Model Number
DP25
Dimensions - Nominal - add 0.375 inches for each grille
A –Depth
Inches
16.6
B –Height
Inches
15.56
C –Width
Inches
33.45
D –Evap. discharge location
Inches
26.19
E –Cond. discharge location
Inches
7.26
F –Inlet opening width
Inches
14.52
G –Drain outlet location
Inches
16.73
H –Discharge opening width
Inches
14.52
I –Inlet opening Height
Inches
14.52
J –Duct opening
Inches
8
AA –Water out (O.D)
Inches
0.50
BB –Water in (O.D)
Inches
0.50
Weight
lbs.
80

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Specifications
Wine Guardian Specification Sheet –60Hz models

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Installation
For questions or help regarding installation, call customer service at 1-315-452-7400 or
email [email protected] a sketch of the proposed area where the unit is to be
installed.
Pre-Installation
Test the system before installing it to check for non-visible shipping damage.
✓Set the system on the floor or a sturdy level surface.
✓Plug in the system.
✓Press the on/off switch and check that the control illuminates. This indicates the
system has power.
✓The built-in timer prevents short cycling and keeps the system from turning on
right away.
RISK OF PERSONAL INJURY OR DAMAGE TO EQUIPMENT
SHARP EDGES ARE PRESENT INSIDE THE WINE GUARDIAN SYSTEM
Pre-Installation Planning
Prior to installation determine how best to mount the unit.
Floor Mounting - Mount the Wine Guardian fan coil on the floor but elevate it 4” (10cm)
as a minimum on a frame with a plywood surface to keep it away from water. Allow
adequate space for the external drain.
Fig. 1
Wall Mounting - If the unit is to be surface mounted on the wall, adequately support it
on both sides of the wall. Use floor or knee braces to transfer the load of the unit to
the floor or wall.

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Ceiling Mounting - Construct a structurally sound, level platform to place the unit on
when hanging it from the ceiling joists. The Wine Guardian system is NOT designed to
be suspended from the top of the unit; it must be supported from the bottom. Place the
unit on a platform to ensure that the unit is supported on all for corners. Leave
adequate space on the top of the unit to remove the access doors for service.
Fig. 2
In all cases, the unit must be level to within ±0.25”(±6.35mm) end-to-end and ±1/8”
(±3.18mm) side-to-side for proper operation. Locate the unit as close to the wine cellar
as possible to reduce the length of the duct runs. If possible, use straight ducting on
all ductwork.
Reducing Noise Generation
Consider noise when locating the unit close to the cellar or to an adjacent occupied
space. The addition of 0.25in-thick (6.35mm-thick) rubber pads help prevent the
transmission of vibration and noise. A piece of 1”or 2” (25 or 50mm) noise dampener
between the unit and the wall absorbs and reduces the noise from the unit. For air
noise reduction, use flexible ductwork to absorb the noise. Sound usually travels as a
line of sight. Sound is reduced when it turns a corner, such as passing through a bend
in ductwork. If the unit is supported from a wall or joist, using a rubber pad under the
unit will reduce vibration transmission.
Ductwork
Wine Guardian units are typically installed indoors near the wine cellar to minimize the
duct runs. Each unit is provided with one entering or return air inlet and three possible
supply air outlets for each of the evaporator and condenser sections. A maximum
cumulative total length for both supply and return ducts (including bends) of 25ft (7.5m)
is recommended. If longer runs are needed, examine your duct run using our Ductwork
Calculator

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Use ductwork to connect the unit to the supply and return outlets in the wine cellar. Use
only insulated ductwork to minimize cooling loses, prevent sweating, and to reduce
noise.
Use ductwork on the condenser section to redirect or absorb sound, to bring in outside
air to the unit inlet, and/or to exhaust the hot air out of the ambient space.
Ductwork Diameters (inches) –Wine Guardian 60 Hz units
Model
#
Evaporator (cold air side)
Condenser (hot air side)
Single Duct Run
Double Duct Run
Single Duct Run
Double Duct Run
DP25
8
6
8
6
It is best to oversize ductwork if exact ductwork diameters are not readily available or easily accessible
Note : The above-referenced sizes are internal diameter in inches for 60Hz and in
millimeters for 50Hz. If a single supply duct is used but then splits into two ducts, the
duct size that is recommended for double duct runs is used after the split occurs (ex.
8” duct would split into two 6” ducts).
Note: Uninsulated ducts and surfaces cause base exposed metal to sweat which can
cause a degradation of insulation, a loss of cooling capacity, and in some cases lead to
water damage.