AIRINNOVATIONS SENTINEL Series User manual

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Ducted Split
Wine Cellar Cooling Systems
Installation, Operation and Maintenance Manual
60Hz Models: DS025
50Hz Models: WGS40
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. 15H0326-00

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Table of Contents
Safety ..........................................................................................................................................................5
Lockout/Tagout Procedure................................................................................................................6
Safety Warnings...................................................................................................................................6
Receiving, Inspecting and Unpacking................................................................................................6
Directory of terms....................................................................................................................................7
General Overview.....................................................................................................................................8
Accessories/Options.........................................................................................................................10
Component Overview .......................................................................................................................12
Overview of the Evaporator.........................................................................................................13
Overview of the Condenser.........................................................................................................14
Refrigeration Illustration..............................................................................................................15
Wiring Diagram for DS025, WGS40...............................................................................................16
Specifications .....................................................................................................................................20
Installation ...............................................................................................................................................22
Pre-Installation....................................................................................................................................22
Pre-Installation Planning..................................................................................................................22
Installing The Fan-Coil......................................................................................................................22
Reducing Noise Generation........................................................................................................23
Ductwork..........................................................................................................................................23
Duct Collar and Panel Adjustment............................................................................................25
Drain Line.........................................................................................................................................26
Wiring the Fan-Coil........................................................................................................................26
Installing The Condensing Unit......................................................................................................27
Installation of Interconnecting Refrigerant Lines..................................................................27
Refrigerant Line-Sets....................................................................................................................28
Sample line Set Configurations..................................................................................................29
Leak Checking and Evacuation Process.................................................................................29
Wiring the Condenser...................................................................................................................30
Installing the Remote Interface and Communication Cable...................................................31
Additional Remote Interface........................................................................................................32
Controller Specification................................................................................................................32
Mounting the Remote Interface Controller (Wired)...............................................................33

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Mounting the Remote Interface Controller (Wireless)..........................................................34
Installation of the Wine Guardian Remote Sensor....................................................................35
Mounting the Remote Sensor (Wired)......................................................................................35
Mounting the Remote Sensor (Wireless).................................................................................37
Remote Sensor Pairing –Multiple Sensors (Wireless)........................................................38
Remote Interface Functions............................................................................................................39
Alarm Codes....................................................................................................................................46
Start-Up.....................................................................................................................................................48
Refrigerant Charging.....................................................................................................................48
Charging System with Head Pressure Control ......................................................................48
Final Start-up...................................................................................................................................52
Maintenance............................................................................................................................................55
Cleaning the Humidifier (Optional)................................................................................................56
All Wine Temperatures (AWT) ........................................................................................................56
Extreme Climate Protection ............................................................................................................56
Maintenance Schedule .....................................................................................................................56
Monthly.............................................................................................................................................56
Yearly.................................................................................................................................................57
Troubleshooting.....................................................................................................................................58
Resetting the High-Pressure Switch.............................................................................................58
Contact and Warranty...........................................................................................................................60
Contact Information...........................................................................................................................61
Warranty...............................................................................................................................................61

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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 license-exempt transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Development Canada’s license-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.

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Safety
The safety messages contained in this manual are bold and highlighted in red 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 - Electric heaters may start automatically, disconnect all
power and control circuits prior to servicing the unit to avoid burns.
Moving Parts Hazards - 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 only at the designated handhold locations 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 signs 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:
✓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 the following:
✓An Electrical Power Cord connected to unit
✓A Remote Interface with 50’ of Communications Cable
✓7’ of Clear Plastic Drain Hose
✓Quick Start Guide
✓Remote Interface Operation Guide
✓Remote Interface Mounting Template
Directory of terms
•Ambient Air –The surrounding air 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.

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•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.
•I.D. –Inside diameter.
•O.D. –Outside diameter.
•NEC –National Electrical Code.
•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 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, split
two-piece climate control system 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.
Each Ducted Split Wine Guardian Fan Coil Contains the following
✓A thermal expansion valve to control the flow of refrigerant into the evaporator
coil.
✓A built-in condensate drain trap. (Do not install an external trap)
✓A removable control panel for ease of service.
✓Supply duct collar.
✓Return duct collar.
✓Remote interface controller and control cable.

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Each Ducted Split Wine Guardian Condenser Contains the following:
✓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 Extreme Climate Protection
option).
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 achieving the 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’s Evaporator 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. Multiple
removable access doors are provided to facilitate cleaning and maintenance, duct
connections, and access to components and wiring.
All exterior framing of the Wine Guardian’s Condenser is Anodized Aluminum to prevent
rust and corrosion. Each Condensing unit houses a compressor. 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.
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.
Electric power is supplied by a single factory-furnished cord and plug. All external
controls are digital and proprietary to Wine Guardian products. Only the approved
communication cable and Wine Guardian controllers are suitable for proper system
operation.

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Accessories/Options
All Wine Temperatures (AWT)
A serving-temperature defrost sensor and an electric heating element are installed
during production. The electric heating option is factory installed and includes primary
and secondary over-temperature protection devices per UL and NEC.
Extreme Climate Protection
This bundle includes both a factory-installed Low-Ambient-, and a factory-installed High-
Ambient upgrade. Low-Ambient protection 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, including a 3R
Condenser Fan. We recommend this bundle if the system will experience condenser
inlet temperatures below 20°F (-7°C) or above 115°F (37°C) to protect the system itself.
This bundle will protect the system from temperatures as low as -20°F (-29°C) or as
high as 115°F (46°C)
•Check valve –installed in the liquid line between the head pressure control valve
and receiver.
•Fan cycling switch.
•Heater –for the receiver with thermostat control.
•Adjustable low - pressure cutout timer.
•Anti-Corrosion Coating –a coating on the Condenser Coil to protect against salt
air and other corrosive environments.

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Humidifier and Humidistat
Another popular option for the Wine Guardian split system 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 that 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
Ductwork for the Wine Guardian system 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 installation layout. The size
of the ductwork kit depends on the selected model of Wine Guardian system. 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.

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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.
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.
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 –A composite-material, single-direction duct collar is
provided for both the inlet and outlet of the evaporator section. Two duct collars are
provided with the unit; every duct collar is interchangeable with access doors to control
and direct the airflow. These duct collars can be removed via the two quarter-turn
screws.
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 Extreme Climate
Protection option, an automatic pressure switch controls the operation of the condenser
blower, and a heating element is added to the compressor oil reservoir.
Removable Panels –Insulated composite-material removable panels are provided on
the evaporator of the unit. These panels can be removed via the two quarter-turn
screws.

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Overview of the Evaporator
Fig.1

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Overview of the Condenser
Fig. 2

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Refrigeration Illustration
Fig. 3

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Wiring Diagram for DS025, WGS40
Fig. 4

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Wiring Diagram for DS025, WGS40 (cont.)
Fig. 5

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Wiring Diagram for DS025, WGS40 (cont.)
Fig. 6

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Wiring Diagram for DS025, WGS40 (cont.)
Fig. 7

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Specifications
Wine Guardian Specification Sheet –60Hz models
DS025
Performance Total/Sensible @208-230V
4100/3178 BTUH
3793/3178 BTUH
3485/3075 BTUH
3690/3075 BTUH
3485/3178 BTUH
3178/2768 BTUH
2973/2563 BTUH
2460/2460 BTUH
Controls Room mounted non-programmable combination thermostat humidistat
+/- 1Deg F / +/- 10% RH
Fan-coil Section 90 Rated Watts
236 CFM
226 @ 0.10"wc / CFM
Heat (Option) Electric
1000 Watts
Humidifier (Option) Removeable drip pad with integral fan
0.42 lbs/hr
0.97 lbs/hr
1.11 lbs/hr
Electrical Requirements - Evaporator Section 115 Volts/1 phase/60Hz
0.8 Amps
9.4 Amps
11.6Amps
0.3 Amps
Cabinet - Evaporator Section Aluminum chassis & UL rated plastic panels
Gray metal epoxy powder coat/textured PVC Acrylic blend
80lbs
21.43 inches
16.60 inches
15.56 inches
0.5 inches
DS025 Cond
3.1 Amps
75 Watts
275 CFM
75 lbs
Enclosure - Condensing Unit Aluminum
Anodized
12 inches
34 inches
26 inches
Electrical Requirements - Condensing Unit 208/230 Volts/1 Phase/60Hz
4.2 Amps
8.0 Amps
ETLc
1. Net cooling capacity at entering temperature and humidity conditions of 57 Deg F (14 Deg C) and 55% RHat rated airflow. Reduce capacity by 3% for each 10%
reduction in evaporator airflow.
2. Wine Guardian reserves the right to make changes to this document without prior notice at its sole discretion.
3. Allratings at sea level.
4. Allbtuh capacity and airflow (CFM) values shown are at tested 230v applied on 208/230v rated units (Condensing units and larger evaporators). If field
application allows 208v applied to the units dualrated, you can generally expect 2.5%-3.0% decreases in values shown.
@115°F (46°C) condenser inlet air
Ducted Split System
Model Number
Net Cooling * Total Sensible
@10°F (minus 12°C) condenser inlet air
@40°F (4°C) condenser inlet air
@60°F (15°C) condenser inlet air
@70°F (21°C) condenser inlet air
@80°F (27°C) condenser inlet air
@100°F (32°C) condenser inlet air
Type
@122°F (50°C) condenser inlet air
Type
Temperature Accuracy/RH% Accuracy
Fan Motor Size
Rated Air Flow (free blow)
Rated Air Flow @ Max allow pressure loss
Capacity
Type
Capacity - water temp of 60°F (15°C)
Capacity - water temp of 90°F (32°C)
Finish
Optional Humidifier
Fan coil construction
Height
Condensate Drain
Condensing Unit
Capacity - water temp of 120°F (49°C)
Power
Current Draw - Cooling mode
Current Draw - Heating mode
Minimum Circuit Size (w/heat option)
MCA
MOP
Agency Approval(s)
Finish
Width
Length
Height
Power
Length
Width
Construction
Weight
Nominal Compressor
Fan Motor Size
Rated Air Flow (free blow)
Weight