York YLCC-H, Technical Information

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Centrifugal fan
Model
ROCA unit
Liquid chiller
Heat pump
Y LC C H 42 V
Vertical air discharge
General description
The YLCC water chillers and YLCC-H heat pumps are sup-
plied factory-assembled and with all refrigerant piping and in-
terconnecting wiring ready for installation at the job site. After
assembly, the water chillers go through a water test. Possible
leaks are also checked once the refrigerant is charged.
The units are made of galvanized steel with anticorrosive nuts
and bolts. The panels can be removed for access to internal
components. The outer galvanized steel parts are painted
with oven-dried enamel (RAL 9002).
Throughout the entire manufacturing process, all our prod-
ucts follow a quality control process in accordance with the
ISO 900 standard, which is also demanded of the acquired
components. The DEP pressure equipment directive is also
applied.
The water chillers or air-water type heat pumps are designed
to be installed in air conditioning systems or industrial proc-
esses that require cold (or hot) water, or water and glycol.
Designed for indoor installation.
Nomenclature
General characteristics
The main characteristics of these units are:
- Operating test at factory.
- Ready for job site installation.
- Designed for indoor installation with ducts.
- Electronic control of water temperature.
- Two independent circuits (2 stages up to 02) (4 stages
22 and 52).
- Scroll compressors.
- Centrifugal fan (horizontal or vertical air discharge).
- Coaxial exchanger.
- R-407C refrigerant.
- Hydro kit (option).
The accessibility of all components and control system al-
lows quick installation and start-up, as well as trouble-free
maintenance.
Technical specifications
Mechanical specifications
Casing
Made of zinc-coated aluminium steel sheeting, finished
with oven-polymerised powdered paint, colour RAL 9002.
Its extraordinary protection against corrosion, along with its
heavy duty internal structure, make up an extremely robust
and resistant unit.
Compressor
The hermetic Scroll type compressor is protected internally.
Starting will be direct on line. With electronic control. The
sump heater is activated when the compressor is inoperative.
Mounted on anti-vibratory supports.
Reversible indoor exchanger
Coaxial type exchanger, of a large transmission surface,
made of finned tubing. Insulated externally.
Maximum operating pressure is 25 bar on the refrigerant
side, and 0 bar on the water side.
Outdoor exchanger
Of a large surface. Made of copper tubing in staggered
rows, mechanically expanded within high performance alu-
minium fins. Maximum operating pressure of the coil is 28
bar (standard unit).
Control of refrigerant to the exchangers
Refrigerant feed is carried out by means of an expansion
valve with external pressure equalizer (reversible on heat
pump models).
Refrigerant
The units are supplied with an optimum R-407C refrigerant
charge for correct operation and maximum output under dif-
ferent working conditions.
Cooling circuit
Made of welded copper tubing and equipped with /4" SAE
connections on the high and low pressure sides.
This product has been designed, manufactured and tested
in compliance with the strictest European safety regulations.
Includes the following components:
- Suction accumulator (pump only).
- Filter-dryer.
- Expansion valve.
- 4-way valve (pump only).
- Liquid sight glass.
- Liquid accumulator (pump only).
- Automatic high and low pressure switches.
- Water differential pressure switch.