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Category: Technical Information Associated With Coolmation Rhoss Chillers & Hybrid Heat Pumps

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Coolmation Limited
Rhoss Chillers & Hybrid Heat Pumps

TCAVZ 2330 – 2700 HE Z Power Chiller Range with an EER greater than 3.1

High energy efficiency packaged air cooled chillers with axial fans, semi hermetic screw compressors and refrigerant R134A

Construction Features:

Compressors: high energy efficiency semi hermetic screw compressors with star delta limited start, full electrical protection and compressor discharge shut off valve.

Electronic expansion valves: fitted as standard on all models.

Water side heat exchanger (evaporator) models 2330 – 2460: stainless steel plate type with closed cell polyeurathene insulation, protected by a water flow pressure differential switch and with Victaulic water connections.

Water side heat exchanger (evaporator) models 2510 – 2700: dry expansion shell and tube type, with unique counter current flow design, fully insulated, protected with a water pressure differential switch and with Victaulic water connections.

Air side heat exchanger (condenser): finned coil exchanger with copper tubes and specially designed aluminium fin construction.

Fans: axial fans with external rotor and equipped with internal electrical protection and protective grille.

Control: electronic microprocessor control prepared for connection with the main BMS systems in use, ie MODBUS, TTU, LON.

Structure: galvanised pre painted sheet steel with polyester powder coating. The unit is also fitted with low and high pressure refrigerant gauges on each refrigerant circuit.

Versions

TCAVBZ: High energy efficiency version designed for cooling only

TCAVSZ: Standard version, silenced and designed for cooling only

TCAVIZ: High energy efficiency silenced version, designed for cooling only

Available Factory Fitted Accessories

• Pump, single or double, run/standby, available in low or high pressure versions
• Pump, single or double, run/standby & 1000ltr capacity integral buffer tank , models 2330 - 2460 complete with expansion tank, air bleed valves, safety valves & water pressure gauge
• 100% heat recovery desuperheater with electronic control & temperature display
• -10°C or -15°C condensing temperature control
• Power factor correction capacitors
• All round protection grilles
• Stepless capacity control 25% - 100%
• Anti freeze heaters for evaporators, buffer tank & desuperheaters
• A range of anti corrosion condenser finishes

EXP Systems – Excellence in Polyvalent Technology

Applications of EXP Systems

The EXP System designed and patented by Rhoss, has been developed to satisfy chilled and hot water demands simultaneously or independently with one single unit according to the operating mode chosen, AUTOMATIC or SELECT. It will operate with a 2 or 4 pipe system at any time of the year.

How does the EXP System work?

The evolutionary microprocessor control, manages the two EXP Systems operating modes, AUTOMATIC and SELECT, satisfying the demands for of 2 or 4 pipe systems.

• AUTOMATIC provides for the simultaneous or separate production of chilled & hot water, in a completely automatic mode
• SELECT provides for the production of hot water & heating water on the basis of system demands & the priorities assigned by the user

2 Pipe Systems

• Air conditioning & the production of hot water in a 2 pipe system is a typical application in hotels, hospitals, sports centres & hospitality structures in general
• EXP Systems in AUTOMATIC mode is used in the summer months for cooling & the production of hot water
• EXP Systems in SELECT mode is used in between seasons or in winter for heating & the production of hot water on the basis of the priority assigned

4 Pipe Systems

Increasingly frequently, modern HVAC installations require the simultaneous production of hot and chilled water. This can occur more often because of:

• The development of new types of thermal insulation for buildings
• An increase in internal loads, CED, WEB etc
• Higher capacity lighting systems
• The presence of large sealed non opening glazing units
• The growing importance attributed to air quality, which requires the use of air conditioning systems, heating & cooling, throughout the year

In these situations, EXP Systems can be used in AUTOMATIC mode throughout the year, providing for simultaneous or separate hot and chilled water demands, feeding cooling or heating systems in a completely automatic way.

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Coolmation Limited
Unit 7 Millstream Trading Estate
Ringwood
Hampshire
BH24 3SD

Tel : 01425 478971
Fax : 01425 470745