HRAT E - HRAT/HRAN
4 English 09/02
DESCRIPTION OF STANDARD UNIT
These air cooled chillers with axial-flow fans and cycle
reversal operate with R22 refrigerant fluid (HRAT-HRAN)
or R407c refrigerant fluid (HRAT E), and are designed for
external installation. The units conform to the essential
requisites of EEC directive 89/392.They are factory tested
and on site installation is limited to water and electrical
connections.
STRUCTURE
Panels and bed plate are made from cataphoretic coat-
ed galvanised steel to ensure total resistance to atmos-
pheric agents.
COMPRESSORS
Hermetic rotary scroll compressor with sump heater
and thermal cut-out.
EVAPORATOR
AISI 316 stainless steel plate-type evaporator complete
with differential pressure switch. Casing lined with
anti-condensate closed cell neoprene cladding.
CONDENSING COILS
With copper tubes and high surface area aluminium fins.
Coil protection grilles as standard (HRAT E models).
FANS
External impeller axial-flow fans. Six-pole electric motor
with built-in thermal cut-out.
Housed in aerodynamic draught tubes with accident pre-
vention grill. Device for operation in low external air
temperatures with pressure transducer for contin-
uous regulation of fan rotation speed.
REFRIGERANT CIRCUIT
The refrigerant circuit includes the following components:
filter, fluid passage indicator, thermostatic expansion valve
with external equaliser. Safety pressure switches to control
delivery and intake pressures. Unit complete with non-
freezing oil and R22 (HRAT-HRAN) or R407c refrigerant
(HRAT E). Factory tested.
POWER AND CONTROL ELECTRICAL PANEL
Power and control electrical panel constructed in accor-
dance with IEC 204-1/EN60204-1, complete with compres-
sor contactor and thermal solenoid switch and door lock
safety device. Control via “HSW3” control panel.
OPTIONAL ACCESSORIES
- Removable metal mesh filter.
- Pump kit
- Inertial storage kit with pump, safety valve, filling assem-
bly, air vent valve, expansion tank, pressure gauge and
drain valve.
- Storage tank connection pipes.
- Rubber vibration dampers.
- Condensate collection pan kit.
- Remote keyboard kit.
- Serial interface kit.
-Protection grille kit (HRAT-HRAN models).
The above accessories are optional. Consult the relative
documentation for assembly instructions and technical
data.
To Next Page
Loading...