Low fluid outlet temperatures. Down to -8°C, even at average outdoor temperatures.
RW ax LT Liquid Chiller
Air condensation with axial type fans Temperature range: from -8°C up to 5°C Outdoor temperatures: up to 40°C
-20 -10 0 10 20 30 40 50
Low outlet fluid temperatures (water or water and glycol, down to -8°C) characterize RW ax LT liquid chillers: air condensation ensures that they use are electrical energy, and not water, for their operation: a resource that is then optimized by the electronically controlled “brushless” type axial fans. Up to +40°C ambient temperature allowed in standard execution.
Efficiency and energy optimization. Thanks to the electronic control enabled by EC Brushless axial fans.
Splash and dust resistance. With IP54 machine protection, especially useful for outdoor installation.
Turnkey solution. Single point of contact throughout the project, possibility of integration with additional systems and ancillary plant components.
Quick pay-back. Pre-selection together with the client, based on the client's project requirement.
Prepared for remote monitoring. A serial port can be combined with the machinery for interface connection with remote station.
Liquid chillers for low temperatures, even in outdoor environments
These Frigofluid systems allow for cooled liquid (water or water and glycol) temperatures between -5°C and +15°C. In standard execution, ambient temperatures up to +40°C are allowed; in the “RW ax/HTA” version, higher ambient temperatures are achievable.
They are also suitable for outdoor environments without the need for protective canopies: in fact, the standard IP54 rating allows outdoor installation without protective canopies.
RW ax LT cooling chillers are air-cooled and environmentally friendly gas compression condensing machines.
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Focus: electronic microprocessor of hydraulic circuit and coolant circuit
It is the instrument for thermostatting water (or water and glycol) and displaying refrigerant gas working pressures. The customer has the possibility of remote diagnosis: in fact, an alphanumeric display communicates the operating “status” of the central unit.
In multi-compressor machines, the microprocessor rotates the starts of the compressors to balance their working hours.
Versions and types of accumulation available
- RWC ax LT: airtight internal storage (possibility of connecting other power plants in parallel).
- RWA ax LT: internal storage at atmospheric pressure.
- RWE ax LT: external storage.
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Series components on all Frigofluid chillers
1. EC (electronic control) Axial Fans
2. Microchannel Condenser
3. Compressors
4. AISI 316 SS Plate Evaporator
5. Storage tank
6. Electronic Microprocessor for the hydraulic and Chilling Systems
1
EC (electronic control) Axial Fans
As standard over the entire production range. They guarantee high performance at top speed and control in the slowrunning range.
2
Microchannel Condenser
Featuring a wide exchange surface and subcooling system plus epoxy paint surface treatment as standard.
3
Compressors
Hermetic systems of “Scroll” type on all models in the catalog.
4
AISI 316 SS Plate Evaporator
Or tube-nest evaporator. With foam closecell thermal insulation.
5
Storage tank
In zinc-plated steel featuring close-cell foam insulation and a range of accessories: air exhaust, safety valve, discharge valve, fittings for level control.
6
Electronic Microprocessor for the hydraulic and Chilling Systems
Allowing control of the (glycol-added) water temperature and display of the chilling gas operating pressure with remote diagnostics possibility: an alpha-numeric display shows the unit’s working status. In the units with more than one compressor, the microprocessor controls their starts on a rotation basis in order to balance their operating hours.
Manual By-Pass
An accessory designed for the function of adjusting the flow rate of water or water/glycol from a hydraulic circuit so as to obtain a working condition suitable for the chiller and its use. This adjustment is carried out by controlling the discharge pressure of the chiller pump.
Expansion Vessel Kit
An accessory designed for the function of containing changes in "hydrostatic" pressure in a type "C" (pressurized) hydraulic circuit due to changes in water and/or water/glycol liquid temperature.
Outdoor Kit
This is an accessory consisting of 3 elements that ensure IP 55 watertightness of the electrical panel and its components for outdoor installation without any canopy or other protection. With OPT 01250 a cover is applied on the electrical box that protects the gasket of the switchboard door.
RTU Modbus
Allows communication of data from our control panels with supervisory and/or other systems through a modbus communication but also OPC UA and PROFINET.
Automatic Loading
Hydraulic system aimed at controlling the filling from water or water/glycol of hydraulic circuits. Consisting of accessories and fittings, it is installed on RW power plants, RAW coolers, and systems in general.
Water Filter
Mechanical filter installed on the water inlet pipe to the chiller (return). The filter usually Y-type can be bronze for sections up to 2" ½ max 3", or spheroidal cast iron flanged for sections 3" and up.
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