Vinotemp WM-1520HZD Instructions for use

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Wine Cooling System
WM-1520HZD, WM-2520HZD
WM-3520HZD, WM-4520HZD
WM-6520HZD, WM-8520HZD
Installation, Use & Care Manual
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Read and save these instructions

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Important Safety Information
NOTES:
•Do not plug in until 24 hours after delivery.
•Do not use a ground fault interrupter (GFI).
•A dedicated 10 AMP circuit for WM-1520~2520HZD and 15 AMP for WM-
3520~8520HZD are required.

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Table of Contents
Features & Specifications.…………………….……………..3
Installation Instructions……………..………………………..6
Temperature & Humidity…………………………..………..16
Care Guide…………………………………………………….20
Troubleshooting………….…………………………………..21
Electrical Diagrams………………..…………………….…24
Customer Support…….…………..…………………….…26
Warranty……………………………………………………….27

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Features and Specifications
•HZD series cooling units are designed and used to provide a stable
temperature between 50~65 °F for a properly insulated space.
•The refrigerated space will maintain humidity ranges within 50~70% RH.
•These temperature and humidity ranges are optimized for long term
storage of wine.
•Temperature is controlled and humidity is adjusted using patented
technology.
•Horizontal cold-air supply is optimized for use in the wide cabinets or wine
rooms.
•The unit is self-contained ready for easy installation and use.
Fig. 1.1 WM-1520~2520HZD FEATURE DESCRIPTIONS

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Fig. 1.2 WM-3520~8520HZD FEATURE DESCRIPTIONS
Fig. 1.3 WM-1520~2520HZD DIMENSIONS

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Fig. 1.4 WM-3520~8520HZD DIMENSIONS
The specifications and dimensions are listed as follows:
Model CFM
Cellar Size
(cu ft) Dimensions W”XD”XH” Electrical Weight (lb)
WM-1520HZD 100 90 14.25X16X13.25 220V/50HZ/2A 50
WM-2520HZD 150 180 14.25X16X13.25 220V/50HZ/3A 55
WM-3520HZD 200 600 14.25X21.25X19.75 220V/50Hz/3.5A 75
WM-4520HZD 200 900 14.25X21.25X19.75 220V/50Hz/4.5A 75
WM-6520HZD 420 1400 17X28X22 220V/50Hz/7A 110
WM-8520HZD 420 1800 17X28X22 220V/50Hz/8A 110
NOTES:
•Also see the voltage, frequency and current specified on the label at the
cooling unit.
•The rated capacity is determined under the cellar and ambient
temperatures of 55°F and 75°F with R13 interior and R19 exterior
insulations. Any lower cellar temperature, higher ambient temperature
and less insulation will cause reducing capacity and may not maintain
55°F.
•The ambient temperatures for WM-1520HZD shall not be higher than
78°F or lower than 50°F in order to operate properly.
•The ambient temperatures for WM-2520HZD shall not be higher than
95°F or lower than 50°F in order to operate properly.
•The ambient temperatures for WM-3520~8520HZD shall not be higher
than 95°F or lower than 50°F in order to operate properly.

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Installation Instructions
NOTES:
•Mounting brackets, screws, gaskets and other seal materials are not included.
•Do not install any ducts onto the supply, return, intake and exhaust.
•Because of potential safety hazards under a certain condition we strongly
recommend against the use of an extension cord. However, if you still select
to use an extension cord, it is absolutely necessary that it is a UL LISTED 3-
wire grounding type appliance extension cord having a 3-blade grounding
plug and a 3-slot receptacle that will plug into the appliance. The marked
rating of the extension cord shall be 220 V, 10 A or equivalent for WM-
1520~2520HZD, 220 V, 15 A or equivalent for WM-3520~8520HZD and not
greater than 15ft in length.
1. General Instructions
•The cooling unit produces cooling supplied into the cellar, meanwhile it also
generates heat that must be exhausted outside the cellar. So the cold- air
supply with return-air intake side and the hot-air exhaust with ambient-air
intake side must be separated and sealed. Through-wall installations can
separate these two sides.
•Furthermore, the condenser of cooling unit must intake adequate fresh
ambient-air to work properly. The ambient-air intake and hot-air exhaust must
not be short-circulated. Both of them must remain unobstructed 36” clearance
all around. The area into which the hot air is exhausted must be well
ventilated. If it is not, heat generated by the unit will build up and the unit will
not operate properly.
•Additionally, cold-air supply from the front grille must remain unobstructed 36”
clearance.
•The ambient temperatures shall not be above and below what are specified.

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2. VINO1520~2520HZD cabinet installation
•Cut a rectangular inside opening with the 1/4” clearance inwards to the width
and height of the cooling unit. By not going through, leave 1/2” lip inside at the
wall to place the gaskets (see Fig 2.1).
•If top exhaust installation, cut another rectangular opening at the top of the
cabinet to the length and width of the top exhaust.
•Install 2 pieces of 1/4” ID wood thread inserts at the ceiling (see Fig.2.1 & 2.2).
•Place the gaskets (1/2” foam tape) on the mounting lip sides (see Fig 2.3).
•If top exhaust installation, place another gaskets along the top exhaust at the
top of the cooling unit (see Fig.2.4).
•Move the cooling unit towards the mounting sides and push to press the
gaskets (see Fig 2.5).
•Use 2 brackets and ¼” screws with 7/16” wrench to secure the cooling unit
(see Fig 2.6).
•Install the cabinet grille on the cabinet exterior wall (see Fig. 2.7).
•Plug the cooling unit in the cabinet receptacle.
•Plug the wine cabinet.
Fig. 2.1 CABINET CUTOUT & GASKET LIP

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Fig. 2.2 THREAD INSERT
Fig. 2.3 REAR GASKET

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Fig. 2.4 TOP EXHAUST GASKET
Fig. 2.5 COOLING UNIT MOUNTING

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Fig. 2.6 SECURING BRACKET & SCREW

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Fig. 2.7 CABINET GRILLE

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3. WM-3520~8520HZD through-wall installation
Fig. 2.8 THROUGH- WALL INSTALLATION
•The cooling unit shall be mounted near the ceiling with equal distance from
each side of the room.
•Cut a rectangular opening at the wine room wall as illustrated. The
dimensions of the opening shall be 1/4” larger than the width and height of the
cooling unit.
•If top exhaust installation, cut another rectangular opening at the top of the
room to the length and width of the top exhaust.
•Construct a shelf as shown. The shelf must be capable of supporting the
weight of the cooling unit and preventing it from moving.
•Place the cooling unit on the shelf with the back of the unit flush with the
outside of the wall.
•Seal the clearance between the cooling unit and opening with a high quality
weather stripping, polyurethane spray foam, or foam tape. Cover the seal with
molding and attach the molding to the wall not the unit.
•If top exhaust installation, place another gaskets along the top exhaust at the
top of the cooling unit.
•Install a wall grille on the room exterior wall.
•Plug the unit into a properly grounded and dedicated outlet of adequate
capacity.

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NOTE: The cooling unit can be installed with the front of the unit flush with
the inside of the wall. Construct a shelf outside the room accordingly.
Fig. 2.9 THROUGH-WALL INSTALLATION (OUTSIDE WALL FLUSH)
Fig. 2.10 THROUGH-WALL INSTALLATION (INSIDE WALL FLUSH)

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Fig. 2.11 TOP EXHAUST GASKET
Fig. 2.12 WALL GRILLE
5. Cellar Construction
This is only a guide and shall be considered as minimum requirements.
This is only a guide and shall be considered as minimum requirements.
All interior walls and floors shall have a vapor barrier and a minimum of R13
insulation. All exterior walls and ceiling shall have a vapor barrier and a minimum
of R19 insulation. The vapor barrier shall be installed on the warm side of the
insulation. All joints, door frames, electrical outlets or switches and any pipes or
vents that go through the cellar shall be sealed to prevent air and moisture
leakage into the cellar. Concrete, rock, and brick are not insulation or vapor
barriers.

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Doors shall be of a minimum size, insulated to at least R13 and tightly sealed
with high quality weather stripping. Be sure to seal the bottom of the door and fill
gap between the door’s frame and wall before installing the cap molding.
In order to maintain 55 °F in the wine cellar, the ambient temperature
surrounding the enclosure shall not exceed the temperature of the cellar by more
than 25 °F. No cellar wall shall receive direct sun or strong wind.
Lighting shall be of low wattage, with a timer to insure lights are not left on when
the cellar is not occupied.
The cooling system will not be able to maintain the proper temperature if fresh
moisture-laden air is constantly being introduced to the cellar. Symptoms of this
condition are; cooling unit runs all the time with only a slight reduction in
temperature and/or water overflows from the unit. Because of the temperature
difference between the inside and outside, very small cracks can allow large
amounts of outside air to enter into the cellar. Please be aware that moisture can
pass through solid concrete, paint and wood. Often a newly constructed cellar
contains fresh wood, paint, concrete and other building materials. These
materials contain large amounts of moisture. When placed into operation in this
type of environment, the system will work harder to remove this extra moisture
resulting in increased “run” time.

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Temperature and Humidity
1. The controller
Fig. 3.1 TEMPERATURE CONTROLLER
1) Keys
SET: To display set-point; in programming mode it selects a parameter or
confirms an operation.
: To start a manual defrost.
: To see the maximum stored temperature; in programming mode it browses
the parameter codes or increases the displayed value.
: To see the minimum stored temperature; in programming mode it browses
the parameter codes or decreases the displayed value.
: To turn on/off the power to the unit.
+: To lock/unlock the keypad.
SET+ : To enter in the programming mode.
SET+ : To return to the temperature display.
2) Lock and unlock the keys
To lock the keys, press up + down keys +until POF is displayed; to unlock
the keys, press up + down keys +until PON is displayed.
3) Display
During normal operating conditions, the display shows the value measured by
the air temperature probe. In case of active alarm, the temperature flashes
alternately to the code alarm. The LED functions are listed as follows.
LED MODE FUNCTION
ON Compressor enabled
Flashing Anti-short cycle enabled
ON Defrost cycle enabled
ON Fan enabled
Flashing Fan delay after defrost enabled
ON Alarm occurring
ON Temperature measuring unit
Flashing Programming mode

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4) Alarm Signals
The alarm codes are described as follows.
MESSAGE CAUSE FUNCTION
P1 Temperature probe faulty Compressor switching to Con and CoF
HA High temperature alarm Probe temperature ALU higher than the
setting temperature; Outputs unchanged
LA Low temperature alarm Probe temperature ALL lower than the
setting temperature; Outputs unchanged
CA External alarm All outputs off
Probe alarms P1”, start a few seconds after the fault in the related probe; they
automatically stop a few seconds after the probe restarts normal operation.
Check connections before replacing the probe. Temperature alarms “HA”, “LA”
automatically stops as soon as the temperature returns to normal value. Alarm
“CA” (with i1F=PAL) recovers only by switching off and on the instrument.
2. Temperature Setting
•Set the temperature at 55 °Ffor the optimum aging of wine
•On initial start-up, the time required to reach the desired temperature will
vary, depending on the quantity of bottles, temperature setting and
surrounding temperature.
•Allow 24 hours to stabilize the temperature for each new temperature setting
operation
3. How to see temperature set-point
1) Press and immediately release the SET key, the display will show the set-point
value.
2) Press again and immediately release the SET key to display the probe value.
4. How to change the set-point
1) Press and hold the SET key until the “°C” or “°F” LED starts flashing and the
set-point is displayed.
2) Press the up/down keys /to change the set-point value within 10 sec.
3) Press the SET key again to store the new set-point value.
NOTE: The unit turns on at set-point Set plus regulation differential Hy after anti-
short cycle AC has elapsed; the unit turns off at set-point Set.
5. Manual Defrost
Press and hold the defrost key until defrost starts. The defrost indicator will be
on.

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6. Parameter Programming
1) Press and hold the SET +keys until the “°C” or “°F” LED starts flashing,
then release the keys.
2) Press and hold again the SET +keys until the Pr2 label is displayed, then
release the keys. The first parameter Hy will be displayed.
3) Press up/down keys /to scroll to the required parameter within 10 sec.
4) Press the “SET” key to display its value.
5) Use up/down keys to change its value within 10 sec.
6) Press “SET” to store the new value and the display will flash 3 times.
7) To exit: Press SET + or wait 15sec without pressing a key.
PARAMETER DESCRIPTION DEFAULT VALUE
Set set-point (°) 55
Hy temperature regulation differential (°) 4
AC anti-short cycle delay (min) 10
Con compress on with probe faulty (min) 15
CoF compress off with probe faulty (min) 30
CF temperature unit (°F/ °C)F: Fahrenheit
rES display resolution in: integer
dLy temperature display delay (min) 1
ot probe calibration (°)0
LS minimum set-point (°)50
US maximum set-point (°)65
idF defrost cycle interval time (hour) 12
MdF defrost cycle endurance time (min) 30
ALC temperature alarm type rE: relative to set-point
ALU high temperature alarm (°) 10
ALL low temperature alarm (°) 10
AFH alarm recovery differential (°)5
ALd temperature alarm delay (min) 60
dAO temperature alarm delay on startup (hr) 23
SAA heater set-point (°)40
SHy heater regulation differential (°)4
FSU fan action Std
FnC fan operating mode C-n: on with compressor & off during defrost
Fon fan on with compressor off (min) 0
FoF fan off with compressor off (min) 15
NOTE: Depending on the controller, not all parameters are used.
7. How to calibrate the air probe
If the actual cellar temperature differs from the setting temperature, set
parameter ot = actual cellar temperature minus set-point.
8. How to adjust defrost cycle

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In case there is excessive frost, the parameters FnC =C-y, idF =4 and MdF =
20 can be used to avoid frost.
9. How to adjust the humidity
The parameter Fon is used to adjust the humidity in the wine cellar. Higher Fon
results in higher relative humidity. Use a separate hygrometer to monitor the
humidity.
10. How to set alarm call
1) Speech notice will be sent to your phones when the cellar temperature is ALU
higher or ALL lower than the set-point Set.
2) In order to test the call function, set parameters Ald = 0 and dAO = 0. After
testing, set Ald = 60 and dAO = 23.
11. How to set low cellar temperature heater
The heater turns on at SAA minus Shy; the heater turns off at SAA.
NOTES:
•Use a forced air heater to warm up the wine cellar.
•If there is a thermostat on the heater, bypass it or set the thermostat at the
highest level.
If the heater runs more than 10 A current, use a 120VAC coil contactor.