Wine Guardian 99H0174-00 Technical Document

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Wine Cellar Cooling Systems
Humidifiers –Integrated and Freestanding
Installation, Operation and Maintenance Guide
60 and 50Hz Models
Manufactured by:
Syracuse, NY
www.wineguardian.com www.airinnovations.com
Wine Guardian reserves the right, without notice, to make changes to this document at its sole discretion.
Please visit out 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 06/2021
© Air Innovations, 2021
Part No. 15H0164-00

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TABLE OF CONTENTS
Directory of Terms......................................................................................2
Introduction.................................................................................................3
Receiving, Unpacking and Inspection..........................................................................3
General Description....................................................................................4
Size and Capacity........................................................................................................5
Overview.....................................................................................................6
Overview Drawing with Callouts ..................................................................................7
Dimensional Drawing...................................................................................................8
Wiring Diagram - Integrated Humidifier (60Hz / 50Hz).................................................9
Wiring Diagram - Freestanding Humidifier (60Hz).....................................................10
Wiring Diagram - Freestanding Humidifier (50Hz).....................................................11
Safety .......................................................................................................12
Installation .................................................................................................................12
Pre-Installation Check................................................................................................12
Installation with Freestanding Model.........................................................13
Freestanding Installation...........................................................................14
Wine Guardian-Mounted (Integrated Installation)......................................15
Attaching Humidifier to Ducted Wine Guardian unit (integrated installation).............16
Location of WG Unit Connection for Communication Cable from Humidifier.............16
Controller Set-Up Instructions...................................................................17
Mounting the Humidistat...........................................................................20
Maintenance.............................................................................................21
Suggested Maintenance Schedule............................................................................21
Monthly................................................................................................................................. 21
Yearly.................................................................................................................................... 21
Cleaning the Humidifier and Replacement of Evaporative Drip Pad................................... 22
Humidifier Water Line Maintenance...........................................................................24
Water Line Maintenance Detail..................................................................................25
Manufacturer’s Warranty – U.S. and Canada only....................................26

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Directory of Terms
Ambient Air –The surrounding area outside the cellar such as a room, basement, garage or
outdoors.
BTU/H –British Thermal Unit per Hour is a unit of heat measurement. For example, one ton of
cooling equals 12,000 BTU/H.
CLS –Cubic liters per second. A unit of measurement for the amount of air handled by the fan.
CSA –Canadian Standards Association
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
Exhaust Air –The air leaving the evaporator or condenser section of the Wine Guardian unit.
Evaporative pad –the wire mesh pad inside the humidifier that becomes coated with water as the
water drips down by gravity. Air being drawn over the pad by a fan causes the water to evaporate
into the air, increasing its moisture content.
Grille or Diffuser –Inlet or outlet plates to direct the airflow or protect the inside of the unit
Humidistat –an electrical instrument that measures the relative humidity of air and
reads in percent (%).
Humidity –relative humidity is the percentage of moisture in the air relative to the maximum
amount of moisture the air could hold at any particular condition. Relative humidity is what is
most widely used and is what a humidistat measures. For example, 100% relative humidity means
the air has as much moisture as it can possibly hold at that temperature. Absolute or specific
humidity is the specific amount of moisture (usually measured in grains of moisture per point of
air) in the air at a given air condition
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.
Moisture –water that has been evaporated into the air.
NEC –National Electrical Code
Recovery –the amount of cooling or humidifying required to return the cellar to its set point
temperature or humidity after some new load has been introduced, such as people in cellar or new
cases of warm wine coming in.
Return/Inlet Air –the air returning from the cellar and entering the evaporator section of the
Wine Guardian unit. Also the air entering the condenser section.
Set point –the desired temperature or humidity that is set on the Thermostat or Humidistat.
SP –static pressure. Unit of measurement (in inches of water column) of the pressure of the air
being handled by the fan.
Supply/Discharge Air –the air leaving the Wine Guardian unit and going into the cellar from the
evaporator section. Also the air leaving the condenser section.
UL –Underwriters Laboratory

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Introduction
Dear Customer:
Congratulations and thank you for purchasing a Wine Guardian®Humidifier. We believe
it to be the best wine cellar humidifier on the market and hope that you will agree.
This guide is intended to help the installer and owner of the Wine Guardian Humidifier to
properly install and maintain the equipment. In order to ensure optimal performance, the
equipment should be installed properly and have proper care and maintenance. Please
read this guide carefully, especially the safety instructions, and keep it for future
reference.
Receiving, Unpacking and Inspection
This Wine Guardian Humidifier is shipped in a cardboard box. Each humidifier is factory
assembled and tested prior to shipment. There are three models of the Wine Guardian humidifier.
See 50 & 60Hz part numbers in the table below.
•Freestanding humidifier supplied with its own grille. This freestanding humidifier is to be
used in a wine room with a Wine Guardian system.
•Freestanding humidifier supplied with its own grille, power cord and humidistat. This
freestanding humidifier is to be used in a wine room without a Wine Guardian system.
•Integrated humidifier that mounts directly to the side of any ducted or split Wine
Guardian system. Humidifier is controlled by the Remote Interface Controller via
communication cable.
60Hz Pt. No. 50Hz Pt. No. Description
99H0174-00
99H0174-01
99H0176-00
99H0176-01
Freestanding humidifier supplied with its own grille, used with a
Wine Guardian unit.
99H0185-00
99H0185-01
99H0186-00
99H0186-01
(continental plug)
Freestanding humidifier supplied with its own grille, power cord
and humidistat, used without a Wine Guardian unit.
99H0173-00
for Models
D025, D050,
D088, SS025,
SS050 &SS088
99H0187-00
for Models
D200 &SS200
99H0175-00
for Models
WG40, WG75,
WG100, WGS40
WGS75 & WGS100
99H0188-00
for Models
WG175 &WGS175
Integrated humidifier that mounts directly to the side of any
ducted Wine Guardian system.

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Upon receipt and 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.
Find the packing slip and check for completeness of contents. Make sure it is the correct model
you ordered, including factory options and accessories.
Your Wine Guardian Humidifier has a communication cable that gets wired directly to the side
of the Wine Guardian unit, a drain line that requires piping to an open floor drain or condensate
pump and water fill line.
Inspect all equipment for any sign of damage or loose parts caused during transit. Immediately
report all visual or concealed damage to the carrier and file a claim.
NOTE: 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.
The Freestanding Humidifier (part No. 99H0185-00 and 99H0185-01 for 60Hz/ 99H0186-00 and
99H0186-01 for 50Hz) ships with a humidistat that must be mounted within the wine cellar, a
power cord with transformer plug, a water fill line and water drain line.
General Description
The Wine Guardian Humidifier is a self-contained unit designed specifically for wine cellars. It
has been designed for easy installation and operation, either as a freestanding unit or mounted on
a Wine Guardian cooling unit. Wine Guardian uses a humidistat to sense and control the amount
of moisture needed to be added to the cellar. Humidifiers are not intended to remove moisture,
only add moisture. All components are of a high quality, standard commercial grade. The
humidifier, depending upon model, operates with 24-volt power or digital signal from the Wine
Guardian control panel, and therefore does not require UL or CSA approval. All wiring complies
with NEC.
Wine Guardian Humidifiers are the evaporative drip pad-type. Air from the cellar is drawn over
a distribution pad that is saturated with water from a distribution tray. As the air passes through
the pad, it absorbs moisture through evaporation of the water. This raises the humidity of the
leaving air that returns to the cellar. Warm water is recommended for use with the humidifier
(105°F - 40°C max.), however the system will work using cold water. Warm water increases the
capacity of the humidifier to evaporate the water as it passes through the pad. The warm water
also leaves fewer solids on the surfaces of the pad and flushes contaminants out of the pad.
Excess water is collected in the bottom trough and exits through the drain.
To avoid build-up of mineral deposits on the pad and potentially causing blockage of the air
flow, it is recommended that hard water be treated (filtered and softened). Install a 5- or 10-
micron in-line water filter ahead of the humidifier to keep dirt from fouling the inlet screen and
the evaporation pad inside. If the water has a high mineral content, a softener may be needed to
prevent excessive scale from building up too rapidly on the pad.

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Additionally, to insure adequate wetted surfaces and to help flush away excess minerals, the
water flow is set to always have a flow of water to the drain. When operating, the humidifier will
use approximately 1 to 2 gallons (4 to 8 liters) of water per hour depending on the water pressure
in the building. About 60% of that will pass through and go out the drain. There is a strainer and
an orifice in the line to restrict the flow of water but a throttling valve may be needed to keep too
much water from going to the pad. All that is needed is a steady dripping of water out of the
drain to ensure adequate wetting and flushing of the pad media. Excess water does not negatively
impact the humidifier’s operation but neither does it contribute to more humidification. The drain
volume is too much for just a bucket. A gravity drain line should be piped to an open floor or
sink drain, or a condensate pump may be used where a gravity drain is impractical. This excess
drain water can be discharged directly onto the ground. The discharge of the drain can be
combined into the condensate drain from the cooling unit.
The humidistat, located in the cellar, will automatically turn on the humidifier whenever the
cellar humidity is below the set point and turns it off when the cellar humidity reaches set point.
The recommended setpoint is 55% for wine cellars. This humidity level is high enough to
prevent corks from drying out and low enough to prevent mold from forming. When the
humidifier turns on, the water solenoid valve opens and the fan turns on. When mounted and
connected to a Wine Guardian cooling unit, the humidistat also controls the main fan to circulate
air to and from the cellar.
CAREFULLY FOLLOW THE INSTALLATION INSTRUCTIONS INCLUDED WITH THE
HUMIDIFIER. REFER TO THE MANUFACTURER’S INSTRUCTIONS CONTAINED IN THE BOX
FOR THE HUMIDISTAT. WE RECOMMEND YOU KEEP THESE INSTRUCTIONS IN A FOLDER
ALONG WITH THIS GUIDE FOR FUTURE REFERENCE.
Size and Capacity
The Wine Guardian Humidifier uses a 10” wide x 11” high x 2” thick (254mm wide x 780mm
high x 51mm thick) expanded coated aluminum pad. Its rated output capacity for wine cellars is
0.42 lbs/HR (0.19 kg/HR) using 100°F (38°C) supply water. Humidifier capacity is rated at wine
cellars conditions of 57°F/55% (14°C). See Figure 2.0 dimensions on page 8.
CAUTION

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Overview
(Refer to call-outs on Fig. 2.0)
Adapter plates –metal plates used to mount the humidifier to the different sizes of Wine
Guardian cooling units. Refer to Fig. 5 on page 16.
Humidifier Housing –the cabinet and access doors are constructed of ABS (Acrylonitrile
Butadiene Styrene) plastic. This provides corrosion protection and an attractive, maintenance-
free appearance.
Drip tray –the plastic water trough into which the water drips and is distributed evenly over the
drip pad through several holes evenly spaced in the trough.
Water drain connection –collects excess water at the bottom of the pad and is piped to an
external drain.
Electrical controls –most of the electrical components and controls are located inside the
humidifier enclosure. All wiring is done in accordance with the National Electrical Code. Wires
are numbered and color coded to match the wiring diagrams.
Drip pad –the expanded metal pad through which the cellar air flows and the water drips down
the surfaces. Important: Black mark on pad indicates top.
Fan –turns “On” and “Off” on signal from the humidistat when humidity in the cellar is
required. The fan draws air across the evaporative drip pad to absorb moisture.
Front cover assembly –for freestanding applications only. Used to separate the inlet air from
the discharge air.
Orifice –small fitting with a very small hole in the center to restrict the flow of water. Refer to
Figure 8 on page 22.
Strainer –conical shaped stainless steel screen in a plastic frame to capture any sediment in the
water and keep it from plugging the orifice. Refer to Figure 8 on page 23.
Water solenoid valve –opens and closes to control the flow of water into the distribution trough
on signal from the humidistat. Refer to Figure 8 on page 23.

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Overview Drawing with Callouts
Figure 1.0

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Dimensional Drawing
Figure 2.0

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Wiring Diagram - Integrated Humidifier (60Hz / 50Hz)
Figure 3.0

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Wiring Diagram - Freestanding Humidifier (60Hz)
Figure 3.1

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Wiring Diagram - Freestanding Humidifier (50Hz)
Figure 3.2

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Safety
The Wine Guardian Humidifier uses 24-volt power through a 120-volt transformer plug or
digital control through the Wine Guardian main control unit.
CAUTION
BE SURE TO DISCONNECT THE MAIN POWER TO THE COOLING UNIT OR TO THE
HUMIDIFIER. THE POWER PLUG OR COMMUNICATION CABLE SHOULD BE DISCONNECTED
AT ITS SOURCE BEFORE SERVICING.
CAUTION
THE WATER SUPPLY TO THE HUMIDIFER MAY BE HOT. TURN OFF THE HUMIDIFER AND
ALLOW THE WATER TO COOL BEFORE SERVICING THE HUMIDIFIER.
METAL AND PLASTIC EDGES CAN BE SHARP AND CAUSE INJURY IF NOT HANDLED
PROPERLY. FAN BLADES CAN ALSO BE SHARP. DO NOT PUT FINGERS OR
OTHER OBJECTS INTO A MOVING FAN.
Installation
HUMIDIFIER MAY NOT BE INSTALLED WHERE IT MIGHT BE EXPOSED TO FREEZING
TEMPERATURES. IF THE COOLING UNIT IS MOUNTED OUTSIDE, THE HUMIDIFIER WILL HAVE
TO BE MOUNTED IN THE SUPPLY DUCT TO THE CELLAR INSIDE THE BUILDING OR MOUNTED
AS A FREESTANDING UNIT INSIDE THE CELLAR.
Pre-Installation Check
To check for any possible non-visible shipping damage, you may wish to test the unit before
actually installing it. To do so, remove the unit from its packaging and set it on any sturdy level
surface. If a freestanding unit, plug in the unit. If the unit is to be mounted into a cooling unit,
you need to wire the humidifier to the cooling unit and the cooling unit must be turned on (Refer
to page 17). Set the humidistat above the room humidity. The unit should now come on. The
water solenoid should open and the fan should come on. Listen for any unusual noise or
vibration. Turn the humidistat below the room condition and the unit should turn off.
▪NEVER MODIFY THIS EQUIPMENT. CHANGES OR MODIFICATIONS MAY VOID THE
WARRANTY, CAUSE DAMAGE TO THE EQUIPMENT, AND/OR CREATE A SAFETY
HAZARD.
▪NEVER PLACE ANYTHING ON TOP OF THE UNIT. NEVER BLOCK OR COVER ANY OF
THE OPENINGS OR OUTLETS OF THE UNIT.
▪NEVER ALLOW ANYTHING TO REST ON OR ROLL OVER THE POWER CORD, AND
NEVER PLACE THE UNIT WHERE THE POWER CORD IS SUBJECT TO WEAR OR
ABUSE.
▪DO NOT REMOVE OR OPEN ANY ACCESS DOOR OR COVER UNLESS THE UNIT IS
UNPLUGGED.
CAUTION
CAUTION
DANGER

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Installation with Freestanding Model
Stand Alone Humidifier Installation Options
Figure 4.0

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Freestanding Installation
1) Remove Drip Pad from plastic bag and install in unit by lifting up on the spring-loaded drip
tray. (See Fig 7.0 on page 22)
Note: The pad must be installed in the correct position. The pad must be installed with the
colored spot “Up”, next to the drip tray.
Swing the drip tray and drip pad back to a vertical position to finish the assembly of the drip
pad.
2) Attach the access panel and rotate (2) captive latches to secure the access panel to the
humidifier housing.
3) Determine where unit will be mounted.
a. If wall mounted, use surface mount unit (99H0185-01 for 60Hz and 99H0186-01 for
50Hz) Secure bracket to wall (Refer to Fig. 4 on page 12). Attach humidifier to the
bracket (with drain tube on bottom) using four (4) screws provided.
b. If shelf mounted, place humidifier on shelf with drain tube on bottom. You may need to
drill a 1” (2.5cm) diameter hole in the shelf and route the drain tube through the hole.
c. If through-the-wall mounted, frame opening to have studs 16" (40.6cm) OC (on center).
Attach the Through-the-Wall (99H0185-00 for 60Hz and 99H0186-00 for 50Hz) to the
studs using drywall screws or something similar. Attach humidifier (with drain tube on
the bottom) to the bracket using the eight (8) screws provided. Fill in any gaps between
the humidifier and the wall framing with insulation. Trim as necessary.
4) Install a ¼” (.635cm) water line from the water supply to connection at the top of the
humidifier. A shut-off valve (not provided) is recommended to isolate the humidifier from
the water system when needed.
5) Install a ½” (1.2cm) flexible drain line from the bottom of the humidifier to an open drain or
connect into the drain line from the cooling unit.
Proceed to Steps 4 & 5 for humidifier part number:
- 99H0174-00 and 99H0174-01 (60Hz)
- 99H0176-00 and 99H0176-01 (50Hz)
Proceed to Steps 6 and 7 for humidifier part number:
- 99H0185-00 and 99H0185-01 (60Hz)
- 99H0186-00 and 99H0186-01 (50Hz)
6) Humidifier part number 99H0174-00 uses the Remote or Local Interface Controller at the
Wine Guardian system to monitor and control humidity. Plug communication cable from
humidifier into connection at Wine Guardian unit at this time. The communication cable
provides power and control signals to humidifier from Wine Guardian main control panel.
7) Proceed to set up of the Remote or Local Interface Controller at Wine Guardian unit to re-
program for humidity control.

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8) Install the humidistat on the wall where it is open to the cellar and can be read easily,
approximately 60" above the floor. See section on Humidistat Mounting on page 18.
9) Plug transformer plug into wall outlet. The humidifier should now be operational.
Wine Guardian-Mounted (Integrated Installation)
NOTE: Integrated humidifiers can be mounted on either of the two side openings of
the cooling unit on the cooling or evaporator end only. If a duct connection is in that
position, move the duct connection to the top or other side.
DO NOT MOUNT THE HUMIDIFIER ON THE CONDENSER END OF THE UNIT.
1) Remove Drip Pad from plastic bag and install in unit by lifting up on the spring-loaded
drip tray. (See Fig 7.0 on page 22)
Note: The pad must be installed in the correct position. The pad must be installed with the
colored spot “Up”, next to the drip tray.
Swing the drip tray and drip pad back to a vertical position to finish the assembly of the drip
pad.
2) Attach the access panel and rotate (2) captive latches to secure the access panel to the
humidifier housing.
3) Remove side access panel on the side of the cooling unit where you wish to mount the
humidifier.
4) Select the proper adapter plate for the cooling unit. Models D200 and SS200 for 60Hz
and WG175 for 50Hz units require a larger adapter plate and install on the side opening
using the screws from the panel removed above. The adapter plate allows the humidifier
to be mounted in either a forward position or back toward the center by simply rotating
the adapter plate 180 degrees. (See Figure 5.0)
5) Install a ½” (1.27cm) flexible drain line from the bottom of the humidifier to an open
drain or connect into the drain line from the cooling unit.
6) Install a ¼” (.635cm) warm water line from the water supply to the connection at the top
of the humidifier. A shut off valve (not provided) is recommended to isolate the
humidifier from the water system when needed.
7) Connect the communication cable to the side of the Wine Guardian system as shown in
Figure 6 on the following page. The communication cable provides power and control
signals to the humidifier from the Wine Guardian main control panel.
8) Proceed to set-up of Remote Interface Controller within the wine cellar to re-program for
humidity control

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Attaching Humidifier to Ducted Wine Guardian unit
(integrated installation)
Location of WG Unit Connection for Communication Cable from
Humidifier
Figure 6.0

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Controller Set-Up Instructions
Fig A
1. Locate the Wine Guardian
remote interface controller (Fig
B.) within the wine cellar or
proceed to the Wine Guardian
Local Interface Controller
main control panel. (Fig. A)
2. Press the Settings button and
hold it down for five (5)
seconds. The screen will
advance to the set up menu and
"1F" or "Setting #1" will
appear on the screen. (see
pictorial on p.18). For 50Hz
models, default will be “1C”.
3. Continue to press the Settings
button to advance to setup
screen "6 0" or "Setting # 6”.
(see pictorial p.19)
4. Press the up arrow to advance
this setting to either "2" for
Freestanding Humidifier or"1)
for Integrated Humidifier
(mounted at Wine Guardian
Unit. (same pictorial p.19)
5. Controller setup is complete.
Fig B.

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