Page 682 - General Catalogue

CM Series

Multi compressor condensing

unit with scroll/digital scroll
compressors

General features:

› Capacity for MT cooling: 10,5 kW to 102 kW
› Capacity for LT cooling: 7,5 kW to 48,5 kW
› Ambient temperature range : - 25°C - +43°C
› R134A a, R 449A, R448A, R452A R407F
› Copeland scroll and digital scroll compressors
Other types, brands and capacities are possible on request
› Conditions:
MT: Ambient temperature: 35°C Evp. Temperature: -10°C CM Scroll
LT: Ambient temperature: 35°C Evp. Temperature: -35°C

Standard configuration:

Basic Frame Version:
Basic frame made from pre-painted steel sheet, with
vertical condenser placed on 1 or 2 sides of the unit The refrigeration system is fitted with:
and fans (2, 3, 4, or 5) placed on frame top covering
sheet. › General high pressure switch, adjustable and
The compressors are installed in a soundproof autoresetting
compartment separate from the condenser side, but › General low pressure switch, adjustable and
allowing ventilation. autoresetting
The compartment is simple soundproofing insulated › Emergency low pressure switch, adjustable and
(SMP). autoresetting
› Low pressure switches for each compressor
Basic Refrigerating System: emergency, adjustable and autoresetting
The compressors (3 or 4) are connected in parallel, › Low pressure probe, placed on suction header for
with one suction and discharge header. Each capacity control
compressor is fitted with shut-off valves on › High pressure gauge
suction line and discharge line. › Low pressure gauge
The compressors are fixed to the frame through
rubber anti-vibration supports.
The oil equalization system is composed of an Standard electrical panel:
oil separator and an equalization header, which
are mounted on the compressor oil sight glass Standard power distribution
connection. Disconnecting switch
According to the number of compressors fitted, there Compressors protection, with overload cut-out motor
are one or two oil level indicator/s, fitted onto the protector; fuses for fans protection, thermo- contacts
equalization header. for each single fan.
The refrigerating system is equipped with liquid Auxiliary circuit 230 volt through transformer
receivers, if there is more than one receiver, the 400V/230V
installation is made in parallel with a safety valve, a Electronic card XC440C
dehydration cartridge filter, interchangeable, liquid Four alarm signals: emergency (button + lamp, fans
level alarm, liquid sight glass and shut-off valves. block, high pressure switch block, low pressure
On suction line there is a mechanical cartridge filter, switch block.
interchangeable. Electronic speed regulator for condenser fan with
pressure probe for three phase fans and with
temperature probe for mono phase fans + bypass
The electrical panel is placed horizontally on the
top front side of the unit, inside the panel sheets
for frame 1, 2 and 3; grid, ventilation fan and double
door for frames 4, 5, 6 and 7.

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