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

Condensing Units CU 1
– 4
3
Condensing Units
3
Technical Manual : 904-020 v1.3.0 02_13
General Description
UNIT IDENTIFICATION
AIR COOLED CONDENSING UNIT & OUTDOOR HEAT PUMP
RANGE
CU Condensing Unit Cooling Only
CUH Outdoor Heat Pump
S Scroll Compressor (Model sizes 2-4)
1-4 Model Size
HI Head Pressure Control & Mains Isolator
Example CUHS2
INTRODUCTION This range of 8 air cooled condensing units and heat pumps covers the range of 3.3 to 13kW in
cooling mode.
All condensing units are factory fitted with head pressure control and mains isolator as
standard.
The range is custom designed for a small footprint, low noise level, slimline and aesthetically
pleasing appearance and lend themselves to wall mounting applications. These units can be
used with many Airedale products from the mini split Answer Cassette and Concept 2000 units,
Comfort modular comfort products and close control products. They can also be utilised as heat
rejection equipment for applications featuring other cooling units.
CE DIRECTIVE Airedale certify that the equipment detailed in this manual conforms with the following
EC Directives:
Electromagnetic Compatibility Directive (EMC)
89/336/EEC
Low Voltage Directive (LVD) 73/23/EEC
Machinery Directive (MD) 89/392/EEC in the version 98/37/EC
Pressure Equipment Directive (PED) 97/23/EC
To comply with these directives appropriate national & harmonised standards have been
applied. These are listed on the Declaration of Conformity, supplied with each product.
CONSTRUCTION Unit cabinets are manufactured from galvanised sheet steel coated with epoxy baked powder
paint to provide a durable finish.
Standard unit colour is Light Grey (RAL 7035).
Access to the compressors is via removable panels at the end and side of the unit.
STANDARD FEATURES
CONDENSER A large surface area coil, ideally positioned to optimise airflow and heat transfer and
manufactured from refrigeration quality copper tubes with mechanically bonded aluminium fins.
FAN & MOTOR
ASSEMBLY Axial flow fan assembly with low noise sickle type blades and inlet ring.
The external rotor motor allows the use of a low power output, single phase, speed controllable
motor to power the fan.
The motor has inbuilt thermal overload protection and the assembly is supplied complete with a
finger guard for protection.
COMPRESSOR
CU/CUH 1 - 1.5 Fully hermetic reciprocating compressor fitted as standard with Internal thermal motor
protection. Compressor(s) are mounted to the base via the use of vibration isolators.
CUS/CUHS 2 - 4 Hermetic scroll compressors fitted as standard with Internal thermal motor protection and
Internal pressure relief valve. Compressor(s) are mounted to the base via the use of vibration
isolators.
PRE CHARGE All Condensing Units are supplied pre-charged with R407c for a pipe run of up to 7 metres.
Refrigerant must be added for longer pipe runs (refer to
Technical Data for further information).