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Wine Cellar Cooling Unitswith Digital Controller VRM Series –Vertical Rack Mount Single & Twin Evaporator Units / Air or Water Cooled
SYSTEM INFORMATION
The Vertical Rack Mount (VRM) Systemsare engineered to deliver refrigerated air tomedium-high temperature spaces.
VRM evaporators mount vertically and havemultiple panels to access direct or re-directthe supply and return vents. These can beplaced between ceiling joists,in a soffit, or directly onto a wall. This is one of our most popular and versatilesystemsamongst our wine cellar cooling engineering community.
VRM evaporators are manufactured in standardcapacities ranging from 2,600 to 6,600 BTU per hour and are used with R134a refrigerant.
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Single Evaporator VRM Wine Cellar Cooling Unit
Twin Evaporator VRM Wine Cellar Cooling Unit
OPTIONS
- Triple evaporator systems for larger applications
- Eco-friendly water-cooled condensing units available
- Stainless steel cabinets for high-corrosive environments
FEATURES
- High-performance staggered coils with copper tubing mechanically expanded into aluminum fins
- Rust-proof and insulated aluminum housing
- Thermally protected permanently lubricated motor
- Automatic expansion valve (standard) ensures constant coil temperature to promote "Humidity Balance"
- Pump-down solenoid valve (standard) protects compressor in the event of leaks
- Pre-installed valves eliminate additional wiring to thermostat
- Pressure tested by the manufacturer to ensure quality
- Factory wired for simple field installation
- ETL certified
Specification Matrix Single Evaporator VRM Series Wine Cellar Refrigeration Units
Specification Matrix Twin Evaporator VRM Series Wine Cellar Refrigeration Units
VRM Fan Coil Specifications
- It is best to use the larger coil whenever possible.
- If using a smaller coil a suction line accumulator must be used.
- Smaller coils can cause the system to run a lower humidity.
- Expansion valve and liquid line solenoid valve standard.
- For air flow into and out of the unit, at least one access door must be removed from each end.
- Connections at coil do not indicate refrigeration line size. See system information for line sizing.
Mounting Diagrams
Condensing Unit Wiring
Fan Coil Wiring
Field Wiring
L1115V Line Voltage
NNeutral
SVSolenoid Valve
FMFan Motor
TPTemperature Probe
Back of Controller Connections
10Temperature Probe
11Temperature Probe
4Neutral
5115V Line Voltage
2Jumper from 5
3Switch Leg to Fan Coil
C NOInternal normally open contact
VRM Cooling System Typical Installation
- Keep line sets as short as possible.
- Excessive number of turns will cause refrigerant flow problems. This could cause early compressor failure. Suction line accumulators are recommended. Required if working lower than the normal 55-65° operating range from wine cellar.
- Drain line must always flow downhill to drain or pump.
- The system is controlled by a pump down control system. There is no control wiring between thermostat and condensing unit.
- The line connections at Fan Coil and Condensing Unit may not be the same as the required line sizes.
- Standard line sets should be 50' or less. Extended runs may require larger line sizes and 3oz oil must be added for every 10' over 35'.
