Wine Guardian WG 40 Technical Document

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Wine Cellar Cooling Systems
Installation, Operation and Maintenance Guide
Models: WG 40, WG 75, WG 100, WG 175
50Hz
Manufactured by:
Wine Guardian division of Air Innovations, Inc. Syracuse, NY
www.wineguardian.com www.airinnovations.com
Wine Guardian reserves the right, without notice, to make changes to this document at our 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 (76/551,126) of Air Innovations, Inc.
Edition 01-2015

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Table of Contents
Directory of Terms .................................................................................................................. 2
Receiving, Inspecting and Unpacking the................................................................................. 3
Wine Guardian Unit ................................................................................................................ 3
Receiving and Inspecting the Unit .............................................................................................................3
Review the Packing Slip to Verify:.................................................................................................................3
Check the unit for: .........................................................................................................................................3
General Description ................................................................................................................ 4
Standard Specifications ................................................................................................................................5
The Wine Guardian Unit Contains .................................................................................................5
Accessories and Optional Equipment ...........................................................................................................6
Heating Coils ....................................................................................................................................6
Water Cooled Option .......................................................................................................................6
Duct Collars and Flexible Ducts........................................................................................................6
Extended Compressor Warranty......................................................................................................6
Low Ambient Option ........................................................................................................................6
Condensate Pump ............................................................................................................................6
Humidifier and Humidistat...............................................................................................................6
Overview of the Wine Guardian Unit ........................................................................................................7
Overview Illustration of the Wine Guardian Unit ........................................................................8
Refrigeration Illustration - Vapor Compression System ..............................................................8
Wiring Diagram Model WG 75 ......................................................................................................9
Wiring Diagram Model WG 40 ......................................................................................................9
Wiring Diagram Model WG100 ...................................................................................................10
Wiring Diagram WG 175 ................................................................................................................11
Safety ................................................................................................................................... 13
Safety Message Conventions .....................................................................................................................13
Danger............................................................................................................................................13
Warning..........................................................................................................................................13
Caution ...........................................................................................................................................14
Lockout/Tagout Procedure ........................................................................................................................14
Safety Considerations ...................................................................................................................................14

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Safety Hazards ...............................................................................................................................................14
Electrical Hazards ...........................................................................................................................14
Electrical Shock Hazards.................................................................................................................15
Hot Parts Hazards...........................................................................................................................15
Moving Parts Hazards ....................................................................................................................15
Equipment Safety Interlocks ........................................................................................................................15
Main Power Switch .......................................................................................................................................15
Installation............................................................................................................................ 17
Pre-installation Test ......................................................................................................................................17
Air Flow Illustration.......................................................................................................................................17
Planning the Installation ..............................................................................................................................19
Addressing Items in the Planning Process ..................................................................................19
Performing a Pre-installation Check ...........................................................................................19
Locating the Unit ..........................................................................................................................19
Grilles .............................................................................................................................................20
Reducing Noise from the Unit .....................................................................................................20
Mounting the Unit.........................................................................................................................................21
Floor Mounting ..............................................................................................................................21
Wall Mounting ...............................................................................................................................21
Ceiling Mounting............................................................................................................................21
Installing the Condensate Drain Connection .............................................................................................22
Installing the Drain Line................................................................................................................................22
Priming the Drain Trap .................................................................................................................................22
Wiring the Unit for Power ..................................................................................................... 23
Mounting the Remote Interface Controller ............................................................................................24
Installation of the Wine Guardian Remote Sensor ................................................................. 26
Mounting the remote sensor .....................................................................................................................26
Joining Communication Cable ...................................................................................................................28
Changing Jumper Positions ..........................................................................................................................28
Standard Controller Functions.....................................................................................................................29
Installing the Ductwork ......................................................................................................... 34
Location of Supply and Return Grilles .....................................................................................................34
General Duct Recommendation.....................................................................................................35
Not Using Ductwork .......................................................................................................................35
Using Ductwork..............................................................................................................................35

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Typical Mounting Arrangements ........................................................................................... 36
Duct Adapter Sizes ................................................................................................................ 37
Ducting Options ...........................................................................................................................................37
Single Outlet Duct Installation .......................................................................................................37
Dual Outlet Duct Installation .........................................................................................................37
Inspection and Start-up Checklists ........................................................................................ 38
Starting-up and Operating the Wine Guardian ...................................................................... 39
Turn on the Unit.............................................................................................................................................39
Testing the Fan ..............................................................................................................................................39
Running the Unit ..........................................................................................................................................39
Cycling the Unit..............................................................................................................................................40
Setting the Thermostat.................................................................................................................................40
Regulating the Wine Cellar Temperature ..................................................................................................40
Changing the Air Flow Direction..................................................................................................................40
Maintenance......................................................................................................................... 41
General ...........................................................................................................................................................41
Cleaning the Filters........................................................................................................................................42
Cleaning the Condensate Drain System .....................................................................................................42
Cleaning the Humidifier (optional)..............................................................................................................42
Heating Coil Option ........................................................................................................................42
Low Ambient Option ......................................................................................................................43
Maintenance Schedule ...............................................................................................................................43
Monthly..........................................................................................................................................43
Yearly..............................................................................................................................................43
Troubleshooting.................................................................................................................... 44
Typical Start-up Problems ............................................................................................................44
Unit Does Not Start-up .................................................................................................................44
Unit is Operating and Blows Evaporator Air, but the Supply Air is Not Colder Than the
Return Air from the Cellar ............................................................................................................45
Humidity too low or supply air is too cold, without optional humidifier ......................................46
Humidity too low, without optional humidifier.............................................................................46
Humidity too low with optional humidifier ...................................................................................46
Humidity too high when unit is running but not cooling...............................................................46
Problems Controlling Cellar Humidity ........................................................................................................46
Humidity too high when the unit is not running ...........................................................................47

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Humidity too high when unit is running and cooling.....................................................................47
Other Miscellaneous Problems....................................................................................................................47
Unit operates but the power switch light is not ON......................................................................47
Unit is running properly, but the sound of the unit is objectionable ............................................47
High Pressure Switch has Shut the Unit Down ......................................................................................48
Instructions to Reset High Pressure Switch ............................................................................................48
Advanced Troubleshooting ................................................................................................... 49
Appendix .............................................................................................................................. 50

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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.
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.
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.
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 (mm of water or pascals 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 cardboard 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.
Review the Packing Slip to Verify:
Model number
Factory installed options
Unit accessories
If anyitems listed onthe packing slip do not match your order information, contact the place of
purchaseimmediately.
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

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General Description
View the Overview Illustration on page 8 for details.
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
environmentally friendly R-134a refrigerant.
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 unit is completely self-contained and includes an integral air 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 either as a free-blowing, through- the-wall unit, or as a remote mount
unit with external ductwork connections.
Air from the cellar first enters a filter to remove any airborne dust particles and then enters the
cooling coil. Air passes through the cooling coil and is cooled by the refrigerant inside the coil.
This causes any excess humidity in the air to condense and be captured in the drain pan and piped
outside the unit. Air then enters the fan where it is pressurized and discharged out of the unit.
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 set point. 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. Then the
air flows through the condenser coil where it absorbs heat from the refrigerant in the coil. The air
is finally 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
The air exhaust from the condenser fan is hot and will be 15 to 18 degrees C above
the entering temperature. This may cause overheatingproblems 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
IMPORTANT
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 filter dryer to keep the refrigerant clean and free of contaminant
A sight glass to observe the level of refrigerant
An automatic low pressure switch on the discharge to protect the compressor form high
pressures
The unit uses only environmentally friendly refrigerant F-134a
A built-in condensate drain trap. No external trap is required.
The Wine Guardian meets or exceeds its rated capacities for total watts and cubic litres 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 requiring no maintenance.
All exterior framing of the Wine Guardian is powder coated 1.6mm gauge aluminum to prevent rust
and corrosion. All coils are copper 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.
Both the evaporator and 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.
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 control 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 7.3 metre 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 which 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 50°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 topumpthewatertoasinkor
outside.Itrequires aseparate 220/240 volt electrical outlet.
Humidifier and Humidistat
Another popular option for the Wine Guardian is a humidifier. It comes with a sheet metal adapter
box and a pre-wired humidistat. The humidifier is available for field installation and can be
retrofitted onto an existing unit. Each humidifier is furnished with an electronic digital humidistat
to control the humidity in the cellar. The humidifier mounts directly onto the Wine Guardian unit
and uses the common drain. The humidifier requires a HOT water supply and no additional
external power.
CAUTION
CAREFULLY FOLLOW THE INSTALLATIONS INSTRUCTIONS INCLUDED WITH THE HUMIDIFIER. REFER TO THE
INSTRUCTIONS CONTAINED IN THE BOX FOR THE HUMIDISTAT.

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Overview of the Wine Guardian Unit
Refer to illustrations on page 8
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 through the condenser section. 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 25mm thick filters are provided on both the evaporator and condenser inlets to
protect the coils from dust and dirt. These filters are 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. A cellar mounted digital
electronic humidistat automatically controls the amount of moisture added.
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
compressor oil reservoir. See Refrigeration Illustration on next page.
Supply/return grilles – Powder-coated steel single direction grilles are provided for the inlets to
the evaporator and condenser sections. One grille is provided on an outlet. These are readily
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
Refrigeration Illustration - Vapor Compression System

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Wiring Diagram Model WG 40
Wiring Diagram Model WG 75

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Wiring Diagram Model WG100
10

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Wiring Diagram WG 175

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Wine Guardian
Wine Guardian Dimensional Data
Model Number
WG40
WG75
WG100
WG175
Dimensions - Nominal - add 9.5mm for each grille
A - Width
mm
356
559
559
559
B - Height
mm
356
356
356
457
C - Length
mm
838
838
838
1270
D –Cond. discharge location
mm
540
591
591
660
E –Evap. discharge location
mm
137
137
137
137
F - Inlet opening width
mm
267
470
470
479
G - Drain outlet location
mm
502
552
552
619
H - Discharge opening width
mm
63
254
254
295
I - Inlet opening Height
mm
202
282
282
381
J - Location to wall
mm
368
419
419
457
Weight
kg
36.3
56.7
65.8
88.4
Refrigerant Charge –134A
g
539
737
964
1417

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Safety
Before installing or maintaining the Wine Guardian Unit do the following:
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
IMPORTANT
The equipment described in this manual uses electricity. When using
this equipment, be sure to follow the safety procedures outlined in the
Wine Guardian Manual.
Safety Message Conventions
Safety messages contained in this manual, DANGER, WARNING, and CAUTION are bold and
highlighted in red for quick identification.
Danger
A Danger message indicates an imminently hazardous situation which, if not avoided, results in
death or serious injury. Messages identified by the word DANGER are used sparingly and only
for those situations presenting the most serious hazards.
Following is a typical example of a Danger message as it could appear in the manual
HIGHVOLTAGE - RISKOF SERIOUS INJURY OR DEATH
High voltages are present in the cabinets.
Before opening panels turn off all power.
Use the Lockout/Tagout procedure .
DANGER
Warning
A Warning message indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
Following is a typical example of a Warning message as it could appear in the manual :
WARNING
RISKOFPERSONALINJURYORDAMAGE TOEQUIPMENT
Modification to the equipment maycause injury.

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Caution
A Caution message indicates a potentially hazardous situation which, if not avoided, could
result in minor or moderate injury. It may also be used to alert against unsafe practices.
Following is a typical example of a Caution message as it could appear in the manual:
CAUTION
RISK OF PERSONAL INJURY OR DAMAGE TO EQUIPMENT
Improper installation may result in the equipment malfunctioning and a safety hazard.
Read all of the installation instructions before installing the Wine Guardian unit.
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
accidently plugging in the unit.
Safety Considerations
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.
Safety Hazards
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 guideline 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.

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Electrical Shock Hazards
All power must be disconnected prior to installation and servicing this equipment. More than
one source of power may be present. Disconnect all power sources to avoid electrocution or
shock injuries .
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.
The fans are free-wheeling after the power is disconnected. Allow the fans to stop com-
pletely before servicing the unit to avoid cuts or dismemberment.
Rotating Fan Blades are present in the Wine Guardian unit. Sticking a hand into an exposed
fan while under power could result in serious injury. Be sure to use the Lockout/Tagout
procedure when working in this area or remove the power cord.
Equipment Safety Interlocks
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.
Main Power Switch
The main power switch is located on the side of the Wine Guardian unit. (See Overview
Illustration on page 8) It shuts off the power to the unit.
Energy Type Electrical
Hazard............................... Electrocution, electrical burns and shock
Magnitude 230 volts AC 1 phase, 50 cycles
Control Method..................Disconnect power cord and On/Off Switch
DANGER
 Never reach into a unit while the fan is running.
 Never open an access door to a fan while the fan is running.
 Disconnect the power cord switch before working on the unit. The unit may have more than one
power source to disconnect.
 Avoid risk of fire or electric shock. Do not expose the unit to rain or moisture .

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WARNINGS
 Check weights to be sure that 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.
 All supports for the unit must be capable of safely supporting the equipment’s weight and any
additional live or dead loads encountered.
 All supports for the unit must be designed to meet applicable local codes and
ordinances.
 Do notremove access panels until fan impellers have completely stopped. Pressure
developed by moving impellers can cause excessive force against the access panels.
 Fan impellers continue to turn (free-wheel) after the power is shut off
CAUTION
 Clean only with a dry cloth.
 Never pressurize equipment above specified test pressure. See Wine Guardian
Specification Sheet
 Do not use the Wine Guardian near water.
 Do not block any supply or return air register or duct. Install in accordance with the
instructions in the Wine Guardian Manual. Do not defeat the safety purpose of the polarized
or grounding type plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The wide blade or the
third prong is provided for your safety. If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete outlet.
 Protect the power cord from being walked on or pinched, particularly at the outlet plugs,
convenience receptacles, and the point where it exits the unit.
 Only use attachments/accessories specified by the manufacturer.
 Always operate this equipment from a 230 VAC, 1 phase 50Hz power sources only.
 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. such as:
The power supply cord or plug is damaged
Liquid has been spilled or objects have fallen into the unit
The unit has been exposed to rain or moisture
The unit does not operate4 normally
The unit has been dropped