Airedale Condensing Units (CU) 3kW - 80kW - Manual (Page 8)

CUS 15 - 60 / HCU 20 – 30D
Condensing Units
Chiller & Condensing Units
Installation & Maintenance:Part No: 6259592 IM 07\14
8
Component Location
COMPRESSORS HCU 20 - 30D
The compressors are located in the centre of the unit and are accessed by key
operated lockable covers.
CUS 15 - 30D
The compressors are housed in the enclosed compartment which is at one end of the
condensing unit and accessible by a series of key operated lockable covers.
CUS 40 - 60D
The compressors are housed between the condenser coils and are accessible via
lockable access covers located at the opposite end of the unit from the control panel.
CONTROL PANEL HCU 20 - 30D
This is mounted at one end of the unit. It contains all the necessary breakers,
contactors and terminals required to operate the unit.
CUS 15 - 30D
This is mounted above the compressor in the same compartment. It carries all the
necessary breakers, contactors and terminals required to operate the unit
CUS 40 - 60D
This is mounted in the enclosed end of the unit. It carries all the necessary breakers,
contactors and terminals required to operate the unit.
CONDENSER FAN AND
MOTOR UNITS These are integral fan / motor units and are mounted so as to give a vertical discharge
of air from the condensing units.
COMPRESSOR ANTI-
CYCLE TIMERS
(STANDARD FITMENT) These are fitted on the control panel and wired in to the control system. It is normally
recommended that this be set to a ten minute interval.
HEAD PRESSURE
CONTROLLER (WHEN
FITTED) CUS 15 - 30D AND HCU 20 – 30D
This fan speed controller is a single controller with the two sensors connected to it. It
operates to sense both circuits at the same time and will sense whichever circuit has a
head pressure that is requiring controlling and will vary the fan speeds accordingly.
CUS 40 - 60D
A separate fan speed controller is fitted to each circuit and will vary the fan speeds for
each circuit accordingly.