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Rack Split Cooling System
Installation, Operation & Care Manual
WM-2500SSRWC WM-4500SSRWC WM-6500SSRWC
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Important Safety Information
WARNING:
• Do not use a ground fault interrupter (GFI).
• A dedicated 20 AMP circuit for WM-2500SSRWC and 30 AMP for WM-
4500~6500SSRWC are required.
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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………….…..….……..…………….14
Electrical Wirings..…………….…..….……..………………24
Customer Support……………………………………………26
Warranty……………………………………………………….27
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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-2500~6500SSRWC 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.
• SSRWC units consist of a condensing unit and an evaporator unit; they are
connected by a liquid line and an insulated suction line.
• SSRWC condensing units can be located away from the evaporator unit 50 ft
so that noise and compressor vibration are isolated.
• SSRWC condensing units are water cooled so that exhaust ventilation is not
needed.
• SSRWC evaporator units are designed for installation inside a rack or
between two ceiling joists, 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 SSRWC Rack Split Cooling System
NOTE:
Capacity is determined under the cellar, the cellar ambient and the
condenser inlet water temperatures of 55°F, 75°F and 75°F, with R13
interior and R19 exterior insulations. Any higher ambient and water
temperatures, lower insulations will cause reducing capacity and the cellar
temperature may not be maintained at 55°F.
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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
WM-2500SSRWC
WM-4500SSRWC
WM-6500SSRWC
Also see Fig. 3 & 4 for further info.
Evap Unit
L”xD”xH”
WM-25SFCR
32x11.125
x11.375
WM-45SFCR
38x11.125
x14.375
WM-65SFCR
44x11.125
x14.375
Cond Unit
L”xD”xH”
WM-250SCU-
WC
24x18x18
WM-450SCU-
WC
24x18x18
WM-650SCU-
WC
24x18x18
Btu/h
CFM
2500
220
4500
335
6500
420
Cellar Size
(cu ft)
250 R134a
1000 R134a
1500 R134a
Refrigerant
Electrical
Evap Unit/
Cond Unit
115V-60HZ-0.77A
115V-60HZ-5.7A
115V-60HZ-0.77A
115V-60HZ-6.9A
115V-60HZ-1.9A
115V-60HZ-12A
Weight (lb)
Evap Unit/
Cond Unit
25/40
35/60
45/60
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Temperature and Humidity
1. Use of the controller
Fig. 2 Temperature Controller
1) Keys
SET: To display target set point; in programming mode it selects a parameter or
confirm an operation.
(DEF): To start a manual defrost.
(UP): To see the maximum stored temperature; in programming mode it
browses the parameter codes or increases the displayed value.
(DOWN): 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 regulation 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
HA
LA
CA
Temperature probe faulty Compressor switching to Con and CoF
High temperature alarm
Low temperature alarm
External alarm All outputs off
Probe temperature ALU higher than the
setting temperature; Outputs unchanged
Probe temperature ALL lower than the
setting temperature; Outputs unchanged
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 °F for 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.
• Allo w 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 or wait for 5 seconds to
display the probe value.
4. How to change the set-point
1) Press the SET key for more than 3 seconds until the “°C” or “°F” LED starts
blinking and the set-point will be displayed.
2) To change the set value, press the up/down keys / within 10 sec.
3) To store the new set-point value, press the SET key again or wait 10 sec.
NOTE: The unit turns on at set-point Set plus regulation differential Hy after antishort cycle AC has elapsed; the unit turns off at set-point Set.
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5. How to calibrate the air temperature probe
If the actual cellar temperature differs from the displaying temperature, set ot =
actual cellar temperature minus displaying temperature.
6. How to adjust defrost cycle
1) In case there is excessive frost, the parameters FnC = C-y, idF = 6 and MdF =
20 can be used to avoid defrost.
2) In case the air probe is located in the return duct, the parameters FnC = O-n,
idF = 8 and MdF = 20 can be used to help drain.
7. 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.
8. 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.
9. How to set low cellar temperature heater
The heater turns on at set-point SAA minus regulation differential Shy; the
heater turns off at heater set-point 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.
10. Manual Defrost
Press the DEF key for more than 2 seconds and a manual defrost will start.
11. Parameter Programming
1) Press the SET +
keys for more than 3 sec until the “°C” or “°F” LED starts
blinking, then release the keys.
2) Press again the SET + keys for more than 7sec until the Pr2 label will be
displayed, then release the keys. The first parameter Hy will be displayed.
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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.
7) To exit: Press SET + or wait 15sec without pressing a key.
PARAMETER DESCRIPTION DEFAULT VALUE
Set
Hy
AC anti-short cycle delay (min) 10
Con compress on with probe faulty (min) 15
CoF compress off with probe faulty (min) 30
CF
rES display resolution in: integer
dLy temperature display delay (min) 1
ot
US
LS
idF defrost cycle interval time (hour) 12
MdF defrost cycle endurance time (min) 30
ALC temperature alarm type rE: relative to set-point
ALU
ALL
AFH
ALd temperature alarm delay (min) 60
dAO temperature alarm delay on startup (hr) 23
SAA
SHy
FnC fan operating mode
Fon fan on with compressor off (min) 0
FoF fan off with compressor off (min) 15
temperature regulation differential (
high temperature alarm (
alarm recovery differential (
heater regulation differential (
set-point (
temperature unit (
probe calibration (
maximum set-point (
minimum set-point (
low temperature alarm (
heater set-point (
°)
°F/ °C)
°)
°)
°)
°)
°)
°)
°)
°)
°)
C-n: on with compressor & off during defrost
C-y: on with compressor & on during defrost
O-n: continues running & off during defrost
o-y: continues running & on during defrost
55
4
F: Fahrenheit
0
65
50
10
10
5
40
4
NOTE: Depending on the unit, not all parameters are used.
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Care Guide
In general, always unplug system or disconnect power while doing care.
1. Condenser Water Line Cleaning
• To clear any sediment that may accumulate, the water regulating valve may be
manually flushed.
• Insert screwdrivers under both sides of the valve spring guide and lift upwards to
flush.
2. Condensate Removing
• Remove the excessive condensate if it is 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
2. Unit not
starting , but
temperature
rising high
3. Temperature
fluctuating
4. Temperature
high, unit
stopping
and starting
normally
5. Temperature
high, unit
stopping
and starting
with short
running time
6. Temperature
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. Cut-in too high
g. Defrost light blinking
h. Compressor light blinking
i. Defective controller
a. Anti-short cycle
a. Air probe
a. Temperature setting high
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. Improper cellar insulation & seal a. Check insulation, gasket and door
a. Check power cord
b. Check receptacle and fuses
c. Check all wirings and connection s
d. Contact an authorized electrician
e. Lower temperature setting
f. Reduce Hy
g. Unit is under defrost mode
h. Unit is under anti-short cycle delay
i. Call service for diagnosis
a. Reset AC
a. When using an air probe, the wine
bottle temperature is mainly
controlled by the average air
temperature. If the set-point is 55
with the differential 4F, the cooling
unit turns on at 59
temperature (It may be higher than
59
°F if it is in anti-short cycle or
defrost cycle) and turns off at 55
of air temperature. The average air
temperature is 57
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.
a. Lower the setting
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
opening
°F of air
°F, and then the
°F
°F
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high or not
cooling and
running
continually
7. Unit running
too long
8.Temperature
high,
compressor
stopping
and starting
but very
short
running time
9.Evaporator
fan running
too long
10.Evaporator
freezing up
11.Water leak
12.Condensate
b. Cellar too large
c. Cellar ambient temperature too
high
d. Malfunctioning fans
e. Evaporator airflow
f. Improper condenser cooling
g. Iced evaporator
h. Refrigeration system restriction
i. Refrigerant leak
j. Undercharge or overcharge
k. Failed components
a. Improper cellar insulation & seal
b. Cellar too large
c. Cellar ambient temperature
higher > 90
d. Improper condenser cooling
a. Failed components
b. Improper condenser cooling
c. Overcharge of refrigerant
d. Discharge or suction pressure
too high
a. Post-compressor fan running
mode for humidity modulation
a. Evaporator air flow restriction
b. Improper condenser cooling
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 freezing,
moisture in the system
g. Refrigerant low or leaking
h. Expansion valve blockage
a. Air leak in the wine cellar
(excessive condensate on the
front of the cooling unit)
b. High humidity
c. Evaporator air flow restriction or
low refrigerant
d. Water passages restricted
e. Drip tray leak (No water overflow
but water leak)
a. Drain line restricted a. Check for drain
°F
b. Check for excessive size
c. Check installation location
d. Check for evaporator fan
e. Check for air restrictions, air short-
circulation, grille directions
f. Check water flow
g. Defrost and reset temperature
h. Call service
i. Call service
j. Call service
k. Check compressor windings, start
relay and overload protector
a. Check insulation, gasket and door
opening
b. Check for excessive size
c. Check for installation location
d. Check water flow
a. Check compressor windings, start
relay and overload protector.
b. Check water flow
c. Call service for removing refrigerant
d. Call service for information
a. Reset FON
a. Check for fans and CFM
b. Check water flow
c. Check for seal, door opening,
ambient temperature and
temperature setting
d. Check for controller and prob e
e. Change defrost cycle
f. Call service
g. Call service
h. Call service
a. Check for any air leak
b. Use drain line
c. Check supply air flow or air TD
crossing evaporator
d. Clean the drip tray
e. Seal the leak using silicone sealant
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inside ducts
13.Condensate
outside
ducts
14.Circuit
tripping
15.Noisy
operation
b. Continually running not stopping
c. Too cold supply air
a. Duct not insulated
b. High humidity
c. Too cold supply
a. Incorrect fuse or breaker
b. Incorrect wirings
c. Failed components
a. Mounting area not firm
b. Loose parts
c. Compressor overloaded due to
improper condenser cooling
d. Defective components
b. raise temperature setting or
increase defrost cycle
c. Increase air flow or raise
temperature setting
a. Check for insulation
b. Use dehumidifier
c. Increase air flow or raise
temperature setting
a. Check for proper fuse or breaker
b. Check for wirings and connections
c. Call service
a. Add support to improve installation
b. Check fan blades, bearings,
washers, tubing contact and loose
screws.
c. Check water flow
d. Call service for checking internal
loose, inadequate lubrication and
incorrect wirings
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Installer’s Instruction
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 (pressure control, water regulation valve, discharge and suction
valves and installed)
Liquid Filter
Liquid Indicator
Temperature Controller (4.5”LX4.5”WX3.75”D) + Air Probe
Parts not included:
Liquid line copper tubing
Suction line copper tubing
Water lines
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CAUTION:
Liquid and suction line locations may differ from what are shown here,
please check on the units for proper installation.
Fig. 3 WM-25~65SFCR Evaporator Unit
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Fig. 4 WM-250~850SCU-WC Condensing Unit
Fig. 5 Liquid Filter Fig. 6 Liquid Indicator
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Fig. 7 Temperature Controller (4.25”L X 3.75D X 4.25”H)
2. Evaporator Unit Installation
1) The WM-25~65SFCR evaporator units shall be installed for rack or joist
mount with the supply air on the left front, top or side and return air on the
right front, top or side.
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.
3. Condensing Unit Installation
1) Condensing unit shall be elevated to avoid possible flooding and shaded from
direct sun. The location shall be adequately ventilated and shall not be
subject to freezing temperatures.
2) Water must be supplied to WM-250~650SCU-WC at all times during
operation, with the maximum outlet temperature of 120 °F. A sufficient
amount of water must be provided for constant head pressure and proper
cooling, but excessive water flow will cause the unit working inefficiently.
3) The maximum permissible water pressure is 150 PSIG. If water pressure is
excessive, a pressure reducing valve must be used to reduce the water
pressure.
4) If a water pump is used, install it before the water inlet so that the condenser
cooling water is fed from the discharge side of the pump.
5) Service valve operation
1 - Process & Manometer
2 – Receiver Discharge or Compressor Suction
3 – Liquid Line or Suction Line
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4 - Pressure Control
Back Position: Normal operation, process and manometer port closed
Front Position: Liquid/suction line connection closed
Middle Position: All ports open for evacuation, charge and manometer
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 8 ROTALOCK Valve Operation
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 9 Base Valve Operation
Model No Condensing Unit
WM-2500SSRWC WM-250SCU-WC 0.2 3/8” FPT
WM-4500SSRWC WM-450SCU-WC 0.4 3/8” FPT
WM-6500SSRWC WM-650SCU-WC
Water Flow
(75°F inlet, gal/min)
0.6
Water-in
Connection
3/8” FPT
Water-out
Connection
1/2" ODF
SOLDER
1/2" ODF
SOLDER
1/2" ODF
SOLDER
Water Pressure
Drop (PSI)
4. Temperature Controller and Air Probe
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.
0.2
0.2
0.2
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3) Air probe can be pulled out of the temperature controller around 5 ft; if
additional wires are needed, 18 gauge wires may be used to extend the air
probe.
5. Checking Control Settings
Suction pressure setting: Cut out=10 psig; Cut in=25 psig; Differential=15 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.
Fig. 10 Adjustable Pressure Control
6. Piping, Checking and Testing
NOTES:
• The line connection sizes of liquid filter & indicator, the valve
connection sizes of condensing unit and the line connection sizes of
evaporator unit are not necessary the same as the listed refrigeration
line sizes.
• If the condensing unit is installed above the evaporator unit, use the
suction line one listed size smaller.
• Expansion and solenoid valves have been installed on the liquid line.
1) The installation order starts from condensing unit (including receiver and
discharge valve), liquid line filter-drier, moisture-liquid indicator, liquid line, to
evaporator unit (including liquid line connection, solenoid valve, expansion
valve, and suction line connection), returning to insulated suction line, suction
valve and then back to condensing unit.
2) If the condensing unit is located below the evaporator unit, use inverted U
trap to prevent liquid from flooding back to the compressor; if the elevation
difference is more than 10 ft or the line set exceeds 75 ft, use both inverted U
trap and suction accumulator.
3) If the condensing unit is located more than 10 ft above the evaporator unit,
use U trap to aid oil returning to the compressor.
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4) Complete pipe brazing, check solenoid valve and expansion valve restrictions
and test leak.
5) Hook up the drain line and check if water drains.
6) Hook up the drain line and check if water drains.
The line sizes and refrigerant charges are listed as follows.
Model No
WM-2500SSRWC <= 75 FT 1/4" OD 3/8” OD 7/8” OD R134a/19 OZ
WM-4500SSRWC <= 75 FT 1/4" OD 1/2” OD 7/8” OD R134a/26 OZ
WM-6500SSRWC <= 75 FT 1/4" OD 1/2” OD 7/8” OD R134a/32 OZ
Equivalent
Line Set
Liquid
Line
Suction
Line
Drain Line
Recommended
Charge
7. Connecting Electrical Wires
Connect all electrical components using the wiring diagrams in accordance with
all state and local codes.
8. Evacuating, Charging and Starting the system
CAUTION:
• Always use the superheat and subcooling, pressure readings to charge
refrigerant properly; the listed charge amounts are used for reference
only.
1) Evacuate the system; both discharge and suction valves must be in the
middle positions during evacuating.
2) Charge the system through both suction and discharge valves with refrigerant
using the suggested amount; both discharge and suction valves must be in
the middle positions during charging.
3) Turn on the water valve.
4) Connect the power to start the system and check the follo wing temperatures
and pressures.
9. Adjusting and Completing the installation
1) Set the water regulating valve opening set-point at refrigerant pressure of 120
PSIG. Turn counterclockwise to raise the operating set-point.
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Fig. 11 Water Regulating Valve
2) It may use a fan speed control to adjust the air flow to achieve the specified
CFM. The fan will run from the minimum speed to full speed with the control
knob at the lowest and highest speed position. To adjust the minimum speed,
turn control knob to the lowest speed position, then rotate the setting (located
on the side or front) clockwise to decrease the minimum speed or counterclockwise to increase the minimum speed. The minimum speed should be
adjusted until it supplies the required CFM.
Fig. 12 Fan Speed Control
3) The subcooling at the condensing unit shall be around 10°F. The charge may
be complete when there are no more bubbles forming in the liquid indicator.
4) Head pressure is maintained constant but will vary with the water outlet
temperature: 120 ~ 190 psig at the water outlet temperature 95 ~ 120 °F.
5) The evaporator’s constant pressure expansion valve is set around 30 ~ 35
psig (35 ~ 40°F) at factory. This pressure setting gives a dew point to
maintain the proper humidity for storing wine.
6) The temperature split across the evaporator shall be 8 ~ 10°F at 55°F wine
cellar temperature.
7) Again, you must verify if the superheat at the evaporator unit is around 9 ~
18°F at 55 °F wine cellar temperature under high ~ low water temperatures.
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8) If the superheat is high, check the subcooling first to know if the refrigerant
charge is sufficient. If the charge is not sufficient, add more refrigerant. If the
charge is good, then increase the evaporator suction pressure by turning the
hex nut (5/16”) clockwise. Liquid must always be charged into the hide side
when the compressor runs.
9) If the superheat is low, then decrease the evaporator suction pressure by
turning the hex nut (5/16”) counter-clockwise.
10) Both discharge and suction valves must be in the back positions before
disconnecting.
11) Close all service valves and disconnect all manifolds and hoses.
Fig. 13 Expansion Valve
10. Pressure, Superheat and Subcooling Readings
CAUTION:
To read properly the service valves must be in the middle positions.
Complaint Possible Causes
j. High suction pressure and low head pressure
Zero superheat and zero subcooling
k. High suction pressure and low head pressure
Low superheat and low subcooling
l. High suction pressure and high head pressure
Low superheat and high subcooling
m. High to normal suction pressure and high head pressure
Low subcooling
n. High suction pressure and high head pressure
Low superheat and low subcooling
o. High suction pressure and high head pressure
High superheat
p. Low suction pressure and low head pressure
High superheat and low subcooling
q. Low suction pressure and low to normal head pressure
High superheat and high subcooling
r. Low suction pressure and low head pressure
Normal to high superheat and low subcooling
s. Low suction pressure and low head pressure
j. Compressor may be bad
k. Expansion valve opened, too
much oil
l. Overcharge
m. Non-condensable gas
n. Water restricted or bad water
regulator, dirty condenser
o. High cellar temperature, high
evaporator load
p. Undercharge
q. Liquid line restricted after
receiver, solenoid valve
restricted
r. Suction line restricted
s. Air restricted at evaporator,
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Low superheat and low subcooling
t. Low suction pressure and low to normal head pressure
High superheat and normal to high subcooling
u. Low suction pressure and normal head pressure
High superheat and normal subcooling
v. Low suction pressure and high head pressu re
High superheat and high subcooling
w. Low suction pressure and high head pressure
High superheat and high subcooling
x. low to normal suction pressure and high head pre ssure
Normal to high superheat and high subcooling
11. Condensing Unit Troubleshooting
Unit not running
1) Incorrect power supply
2) Incorrect or loose wirings
3) Failed components
4) Low pressure control shutting down the
system
5) High pressure control shutting down the
system
evaporator iced
t. Evaporator restricted
u. Expansion valve restricted
v. Both evaporator and condenser
restricted; liquid and suction
lines connected wrong
w. Liquid line restricted before
receiver
x. Condenser restricted
1) Check for proper voltage
2) Check all wirings and connections
3) Check start relay, start capacitor,
overload protector, compressor.
4) Check for system restriction or low
refrigerant
5) Check the condenser water flow
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Page 25
Electrical Wiring Diagrams
CAUTION:
• Hidden lines are the field wirings.
• Use minimum 14 gauge wires for power lines.
• A safety switch is always recommended for the condensing unit.
Fig. 14 WM-2500~4500SSRWC Wiring Diagram
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Page 26
Fig. 15 WM-6500SSRWC Electrical Wiring Diagram
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Page 27
Customer Support
If you need further assistance, please contact us at:
Vinotemp International
17631 South Susana Road
Rancho Dominguez, CA 90221
Tel: (310) 886-3332
Fax: (310) 886-3310
Email: [email protected]
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Page 28
Warranty
Thank you for choosing a Vinotemp cooling unit.
Please enter the complete model and serial numbers in the space provided:
Model_________________________________________________________
Serial No.______________________________________________________
Attach your purchase receipt to this owner’s manual.
1. Limited Warranty
VINOTEMP warrants its products, parts only, to be free from defects due to
workmanship or materials under normal use and service for twelve months after
the initial sale. If the product is defective due to workmanship or materials, is
removed within twelve months of the initial sale and is returned to VINOTEMP, in
the original shipping carton, shipping prepaid, VINOTEMP will at its option, repair
or replace the product free of charge.
This warranty constitutes the entire warranty of the VINOTEMP with respect to its
products and is in lieu of all other warranties, express or implied, including any of
fitness for a particular purpose. In no event shall VINOTEMP be responsible for
any consequential damages what is so ever. Any modification of VINOTEMP
products shall void this warranty.
Service under Warranty
This service is provided to customers within the continental UNITED STATES
only. VINOTEMP cooling units are warranted to produce the stated number of
BTU/H. While every effort has been made to provide accurate guidelines,
VINOTEMP can not warranty its units to cool a particular enclosure.
In case of failure, VINOTEMP cooling units must be repaired by the factory or its
authorized agent. Repairs or modifications made by anyone else will void the
warranty.
Shall a VINOTEMP cooling unit fail, contact the dealer for instructions, do not
return the unit to the factory without authorization from VINOTEMP. If the unit
requires repair, re-pack it in the original shipping carton and return it to the
factory, shipping prepaid. VINOTEMP will not accept COD shipments. If the unit
is determined to be faulty and is within the twelve month warranty period
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Page 29
VINOTEMP will, at its discretion, repair or replace the unit and return it free of
charge to the original retail customer. If the unit is found to be in good working
order, or beyond the initial twelve month period, it will be returned freight collect.
2. Limitation of Implied Warranty
VINOTEMP’S SOLE LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED
TO, AT OUR OPTION, REPAIRING OR REPLACING OF UNIT.
VINOTEMP SHALL NOT BE LIABLE FOR:
DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE UNIT,
DAMAGES BASED UPON INCONVENIENCE, LOSS OF USE OF THE UNIT,
LOSS OF TIME OR COMMERCIAL LOSS, ANY OUTER DAMAGES,
WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.
THIS WARRANTY IS EXCLUSIBE AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR INPLIED, INCLUDING BUT NOT LIMITED
TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.
While great effort has been made to provide accurate guidelines VINOTEMP
cannot warrant its units to properly cool a particular enclosure. Customers are
cautioned that enclosure construction, unit location and many other factors can
affect the operation and performance of the unit. There for suitability of the unit
for a specific enclosure or application must be determined by the customer and
cannot be warranted by VINOTEMP.
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