Vinotemp WINE-MATE WM-2520SSV User manual

www.winemate.com
Rack Split Cooling System
Installation, Operation & Care Manual
WM-2520SSV WM-4520SSV WM-6520SSV
www.vinotemp.com
Read and save these instructions

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Important Safety Information
WARNING:
•Do not use a ground fault interrupter (GFI).
•A dedicated 10 AMP circuit for WM-2520~4520SSR and 15 AMP for WM-
6520SSV are required.
WARNING
To avoid the risk of electrical shock, property damage, personal injury, or death:
•The power cord must be plugged into a 3-prong grounding type wall receptacle,
grounded in accordance with the National Electrical Code, ANSI/NFPA 70 –latest
edition and local codes and ordinances.
•It is the personal responsibility of the consumer to have a proper 3-prong wall
receptacle installed by a qualified electrician.
•DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE THE POWER CORD
GROUNDING PRONG.
•A separate adequately fused and grounded circuit should be available for this
appliance.
•Do not remove any grounding wires from individual components while servicing unless
the component is to be removed and replaced. It is extremely important to replace all
grounding wires when components are replaced.
WARNING
ELECTRICAL SHOCK HAZARD
•Disconnect electrical supply from appliance before servicing.
•Replace all panels before operating.
•Failure to do so could result in death or electrical shock.

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Table of Contents
Cellar Construction.…………………………….……………..3
Features & Specifications…………………….….…………..4
Temperature & Humidity……….…………..………..……….6
Care Guide…………………………………………………….10
User’ Troubleshooting…….………………………………...11
Installer’s Instructions………….…..….……..…………….15
Electrical Wirings..…………….…..….……..………………26
Customer Support……………………………………………29
Warranty……………………………………………………….30

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Cellar Construction
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.
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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Features and Specifications
•Wine-Mate rack split cooling systems WM-2520~6520SSV are designed and
used to provide a cold temperature between 50~65 °F for a properly insulated
wine cellar.
•The wine cellar will maintain humidity range within 50~70% RH.
•These temperature and humidity ranges like in natural caves are optimized for
long term storage of wine.
•SSV units consist of a condensing unit and an evaporator unit; they are
connected by a liquid line and an insulated suction line.
•SSV condensing units can be located away from the wine cellars 50 ft so that
noise and compressor vibration are isolated.
•SSV evaporator units are designed for installation inside a rack or in a wine
room corner, making them an ideal choice for small and medium wine cellars.
There are also multiple air inlet and outlet doors for different installations.
Fig. 1 SSV Rack Split Cooling System
NOTE:
Capacity is determined under the cellar, the cellar ambient and the
condensing unit ambient temperatures of 55°F, 75°F and 90°F, with R13
interior and R19 exterior insulations. Any higher ambient temperatures,
lower insulations will cause reducing capacity and the cellar temperature
may not be maintained at 55°F.
CAUTION:
If the installation area will be below 50°F, purchase a low ambient condition
kit.

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NOTE:
To prepare rough-in, leave minimum 4” clearances for electrical wiring and
refrigeration piping.
The specifications and dimensions are listed as follows:
Model
No
Evap Unit
Cond Unit
L”xD”xH”
Btu/h
CFM
Cellar
Size
(cu ft)
Refrigera
nt
Electrical
Evap Unit/
Cond Unit
Weight (lb)
Evap Unit/
Cond Unit
WM-
2520S
SV
WM-
252SFCV
WM-
252SCU
18x14x12
2100
180
230
R134a
220V-50Hz-
0.4A 220V-
50Hz-3A
45/40
WM-
4520S
SV
WM-
452SFCV
WM-
452SCU
18x14x12
3700
280
900
R134a
220V-50Hz-
0.4A 220V-
50Hz-3.5A
55/60
WM-
6520S
SV
WM-
652SFCV
WM-
652SCU
24x18x18
5400
350
1400
R134a
220V-50Hz-1A
220V-50Hz-6A
60/60
Evap Unit
A
B
C
D
WM-
252SFCV
41 1/2”
13”
8 13/16”
8 7/16”
WM-
452SFCV
47 1/2”
16”
9 5/16”
13 15/16”
WM-
652SFCV
51 1/2”
18”
N/A
N/A
Also see Fig. 3, 4 & 5 for further info.

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Temperature and Humidity
1. The controller
Fig. 2 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

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Press and hold the defrost key until defrost starts. The defrost indicator will be
on.
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

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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
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 220VAC coil contactor.

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Care Guide
In general, always unplug system or disconnect power while doing care.
1. Coil Cleaning
•Clean the condenser coil regularly. Coil may need to be cleaned at least every
6 months.
•Use a vacuum cleaner with an extended attachment to clean the coil when it is
dusty or dirty.
2. Condensate Removing
•Remove the excessive condensate if itis accumulated in the wine cellar at high
humidity conditions.

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User’s Troubleshooting
This Troubleshooting Chart is not prepared to replace the training required for a
professional refrigeration service person, not is it comprehensive.
Complaint
Possible Causes
Response
1. Unit not running
a. Power cord not plugged
b. No power from supply
c. Incorrect or loose wirings
d. Low voltage
e. Setting higher than ambient
temperature
f. Waiting for cut-in
g. Defrost light blinking
h. Compressor light blinking
i. Defective controller
a. Check power cord
b. Check receptacle and fuses
c. Check all wirings and connections
d. Contact an authorized electrician
e. Lower temperature setting
f. Wait
g. Unit is under defrost mode
h. Unit is under anti-short cycle delay
i. Call service for diagnosis
2. Unit not starting , but
temperature rising
high
a. Anti-short cycle
a. Reset AC
3. Temperature
fluctuating
a. Air probe
a. When using an air probe, the wine bottle
temperature is mainly controlled by the
average air temperature. If the set-point is
55°F with the differential 4F, the cooling
unit turns on at 59°F of air temperature (It
maybehigher than 59°F if it is in anti-short
cycle or defrost cycle) and turns off at
55°F of air temperature. The average air
temperature is 57°F, and then the wine
temperature is around 57+/-0.5°F. The air
is light enough to change so quickly that it
maintains relatively constant average
temperature that would prevent wine
bottle temperature from fluctuating.
4. Temperature high,
unit stopping and
starting normally
a. Temperature setting high
a. Lower the setting
5. Temperature high,
unit stopping and
starting with short
running time
a. Air probe touching the evaporator
coil, displaying temperature ok
b. Air probe in cold-air supply,
displaying temperature ok
c. Failed controller and probe
a. Move the air probe away from the
evaporator
b. Move the air probe away from the cold-air
supply
c. Call service for diagnosis
6. Temperature high or
not cooling and
running continually
a. Improper cellar insulation & seal
b. Cellar too large
c. Ambient temperature too high
d. Exhaust restricted
e. Malfunctioning fans
a. Check insulation, gasket and door
opening
b. Check for excessive size
c. Check installation location
d. Leave minimum 3 feet clearance for the
hot air exhaust side and leave minimum 1
foot clearance for the ambient air intake
side
e. Check for both evaporator and condenser
fans

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f. Evaporator or condenser airflow
g. Dirty Condenser
h. Iced evaporator
i. Refrigeration system restriction
j. Refrigerant leak
k. Undercharge or overcharge
l. Failed components
f. Check for air restrictions, air short-
circulation, grille directions
g. Clean condenser
h. Defrost and reset temperature
i. Call service
j. Call service
k. Call service
l. Check compressor windings, start relay
and overload protector
7. Unit running too long
a. Improper cellar insulation & seal
b. Exhaust restricted
c. Cellar too large
d. Ambient temperature > 90°F
e. Dirty Condenser
f. Improper condenser air flow
a. Check insulation, gasket and door
opening
b. Leave minimum 3 feet clearance for the
hot air exhaust side and leave minimum 1
foot clearance for the ambient air intake
side
c. Check for excessive size
d. Check for installation location
e. Clean condenser
f. Check for fan and air short circulation
8. Condenser fan
running but
compressor not
running
a. Incorrect or loose wirings
b. Failed components
c. Liquid refrigerant in the
compressor
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
c. Call service.
9. Compressor running
but condenser fan not
running
a. Fan blade stuck
b. Incorrect or loose wirings
c. Failed motors
d. Fan cycle control
a. Check for proper clearance
b. Check all wirings
c. Call service
d. Check for setting
10.Temperature high,
compressor stopping
and starting but very
short running time
a. Failed components
b. Improper condenser airflow
c. Dirty condenser
d. Overcharge of refrigerant
e. Discharge or suction pressure
too high
a. Check compressor windings, start relay
and overload protector.
b. Check for condenser fan
c. Clean condenser
d. Call service for removing refrigerant
e. Call service for information
11.Evaporator fan
running too long
a. Post-compressor fan running
mode for humidity modulation
a. Reset FON
12. Evaporator fan
running but
condensing unit not
running
a. Incorrect or loose wirings
b. Failed components
c. Low refrigerant
a. Check all wirings and connections
b. Check start relay, start capacitor,
overload protector, compressor.
c. Call service
13.Temperature low
a. Low temperature setting
b. Low ambient temperature
c. Air probe fault
d. Temperature controller fault
a. Raise the setting
b. Move to another location
c. Check probe connections or change a
new one
d. Change a new one
14.Evaporator freezing
up
a. Evaporator air flow restriction
b. Condenser air flow restriction
a. Check for fans and CFM
b. Check for fans and CFM

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c. Not stopping due to air leak, high
ambient temperature or low
temperature setting
d. Defective controller or probe
e. Low ambient temperature
f. Initially working then stopping,
moisture in the system
g. Refrigerant low or leaking
h. Expansion valve blockage
c. Check for seal, door opening, ambient
temperature and temperature setting
d. Check for controller and probe
e. Change defrost cycle
f. Call service
g. Call service
h. Call service
15.Water leak
a. Air leak in the wine cellar causing
excessive condensate
b. High humidity causing excessive
condensate
c. Evaporator air flow restriction
d. Drain restricted or unit not level,
and water overflowing
e. Drip tray leak (No water overflow
but leak)
a. Check for air leak
b. Use drain line
c. Check supply air flow or air TD
d. Clean the drip tray and drain line
e. Seal the leak using silicone sealant
16.Excessive
condensate in wine
cellar
a. Air leak in the wine cellar causing
excessive condensate
b. High humidity causing excessive
condensate
c. Drain restricted
a. Check for any air leak
b. Use drain line
c. Clean the drip tray and drain line
17.Condensate inside
ducts
a. Drain line restricted
b. Continually running not stopping
c. Too cold supply air
a. Check for drain
b. raise temperature setting or increase
defrost cycle
c. Increase air flow or raise temperature
setting
18.Condensate outside
ducts
a. Duct not insulated
b. High humidity
c. Too cold supply air
a. Check for insulation
b. Use dehumidifier
c. Increase air flow or raise temperature
setting
19.Circuit tripping
a. Incorrect fuse or breaker
b. Incorrect wirings
c. Failed components
a. Check for proper fuse or breaker
b. Check for wirings and connections
c. Call service
20.Noisy operation
a. Mounting area not firm
b. Loose parts
c. Compressor overloaded due to
high ambient temperatures or
airflow restriction
d. Defective components
a. Add support to improve installation
b. Check fan blades, bearings, washers,
tubing contact and loose screws.
c. Check for airflow
d. Call service for checking internal loose,
inadequate lubrication and incorrect
wirings

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Installer’s Instructions
WARNING
•Always check wiring harness connections before initiating any test
procedures.
•Disconnect electric power from the appliance before performing any
maintenance or repairs.
•Voltage checks should be made by inserting meter proves beside the
wires in the connector blocks with the electric power source on and the
connector block plugged in.
•Resistance checks should be made on components with the electric
power off and the connector block disconnected.
Federal law requires that WINE-MATE split cooling systems be
installed by an EPA certified refrigeration technician.
1. General Instructions
WINE-MATE split system is shipped as components and is ready for use only after
a certified refrigeration technician has properly installed the system. Proper
installation is critical. Vinotemp can only warrant the quality of the components.
The installation and proper operation of the system must be warranted by the
installer. Installation of the system must be done in accordance with all state and
local building and electrical codes.
The condensing unit and evaporator unit are connected by a liquid line and an
insulated suction line that are supplied by the installer. These lines must be
properly sized for the distance between the two units. After the units and lines are
connected, the system must be checked for restriction, pressurization and leak.
Then the system must be evacuate and charged with refrigerant. Refrigerant
amount will vary depending on the length of line set.
Parts included:
Evaporator Unit (liquid line solenoid valve and expansion valve installed)
Condensing Unit (discharge and suction valves installed)
Liquid Filter
Liquid Indicator
Temperature Controller (4.5”LX4.5”WX3.75”D) + Air Probe
Parts not included:

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Liquid line copper tubing
Suction line copper tubing
CAUTION:
Liquid and suction line locations may differ from what are shown here,
please check on the units for proper installation.
Fig. 3 WM-252~652SFCV Evaporator Unit

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Fig. 4 WM-252~452SCU Condensing Unit
Fig. 5 WM-652SCU Condensing Unit

- 17 -
Fig. 6 Liquid Filter Fig.7 Liquid Indicator
Fig. 8 Temperature Controller (4.25”L X 3.75D X 4.25”H)
2. Temperature Controller and Air Probe Installation
1) The temperature controller can be mounted either inside or outside the wine
cellar, but the air probe must be located inside the wine cellar.
2) The air probe shall be located in the wine cellar 5 ft above the floor or the air
return area, but it shall not be located in the air supply area or other areas
where air is not circulated.
3) Air probe can be pulled out ofthe temperature controller around 5 ft;ifadditional
wires are needed, 18 gauge wires may be used to extend the air probe.
3. Evaporator Unit Installation
1) The WM-252~652SFCV evaporator units should be installed for corner mount
with the supply air on the top and return air on the bottom.
2) Air supply shall be unobstructed minimum 12” for a direct blow installation;
leave 2” clearance for a deflector installation; air return shall be unobstructed
minimum 6”.
3) A grille can be used to cover the supply and return with 0~2” clearance; or 2-3
ft long duct can be added.
4) There is a gravity drain system used, so the unit shall be installed level or with
a slight slope downward the drain connection and the drain line shall be
installed slope down toward the drain. If rise-up is needed, a condensation
pump must be used.

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4. Condensing Unit Installation
CAUTION:
Low ambient condition kit is required if the installation area will be below
50°F. If the condensing unit is equipped with a low ambient condition kit, do
not turn on the compressor until the condensing unit has been powered for
minimum 12 hours.
1) Place the condensing units WM-252~652SCU in a properly ventilated location.
If it is not, heat exhausted by the condensing unit will build up and the cooling
system will not operate properly.
2) Condensing unit shall be elevated to avoid possible
flooding and shaded from direct sun. It shall not be
exposed to temperatures higher than 110 °F or lower than
50 °F.
3) Leave minimum 5 ft clearance for the exhaust side and
leave minimum 1 foot clearance for the ambient air intake
side.
4) Service valve operations
1 - Process or Manometer
2 –Receiver Discharge or Compressor Suction
3 –Liquid Line or Suction Line
4 - Pressure Control
Back Position: Normal operation after installation is complete, process or
manometer port is closed.
Front Position: Storage or shipping operation, liquid or suction line connection
is closed.
Middle Position: Installation operation, all ports are open for evacuation, charge
and manometer.
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 9 ROTALOCK Valve Operation

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BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 10 Base Valve Operation
5. Checking Pressure Control Settings
1) Use of the adjustable pressure control (if applicable for pump-down)
Suction pressure setting: Cut out=5 psig; Cut in=25 psig; Differential=20 psig
Head pressure setting: Cut out=230 psig; Cut in=150 psig; Differential=80 psig
It may need to adjust the setting in the field to get the right cycle time.
A. P70 Single/Dual Control
B. PS2 Dual Control
Fig. 11 Adjustable Pressure Control