Ceiling Cassette
The SLIMLINE PERFORMER Ceiling Cassette – Ductless Mini-Split
3
Technical Manual : AIR 8-105.5
General Description
MODEL
IDENTIFICATION
CEILING CASSETTE UNITS
CSD, CSH
or CCW
Base Model:
CSD = Ceiling Cassette Unit – DX Cooling
CSH = Ceiling Cassette Unit – Heat Pump
CCW = Ceiling Cassette Unit – Chilled Water
2/ or _ (blank)
Cabinet Size:
2/ = Small Body (2 X 2 Series)
_ = Medium Body (3 X 3 Series) or Large Body (3 X 4 Series)
8 to 42
Model Size:
Nominal Cooling in Mbh (See Performance Data for Details)
EM, MC or CA
Control Type:
EM = Electro-Mechanical Control
MC = Microprocessor Controlled – Remote Control via Infrared or Pendant
CA = Carel Controller
Example:
CSD 18EM
=
Ceiling Cassette Unit, DX Cooling, 18,000 Nominal BTU/Hr,
Electro-Mechanical Control
STANDARD FEATURES
Construction
Cases are manufactured from lightweight galvanized sheet steel with integral fan mounting
rails for added strength. Fire resistant foam insulation (to UL94 VO) is fitted internally to
provide both thermal and acoustic insulation.
Evaporator
All direct expansion units include a factory installed thermal expansion valve and utilize large
surface area evaporator coils ideally positioned to optimize heat transfer and airflow. Each
evaporator is manufactured from refrigeration quality copper tubes with mechanically bonded
aluminum fins.
Chilled Water Coil
All chilled water units utilize large surface area coils positioned to optimize heat transfer and
airflow. Each coil is manufactured from refrigeration quality copper tubes with mechanically
bonded aluminum fins and are circuited from headers to ensure low water pressure drops.
Fan
All units, utilizing backward curved centrifugal fans, are staticly and dynamically balanced for
quiet operation. Fan impellers are made from either aluminum or fire retardant plastic (UL94
VO) for light weight and corrosion resistant operation. Fans are driven by an enclosed multi-
speed external rotor motor allowing good heat dissipation and an increased motor efficiency.
Fans come complete with thermal overload protection and sealed-for-life lubricated bearings.
Filtration
Wire framed filters are fitted. These are re-usable and may be vacuum cleaned.
Condensate Pump
A condensate pump and check valve are fitted to carry water out of the unit and stop water
from flowing back into the condensate tray. The pump is fixed to a mounting bracket which
can be withdrawn from the side of the chassis and incorporates an inspection hole to allow a
visual check of the pump during operation. A float switch is fitted to stop the cooling action
should the pump become blocked or fail.
Air Vanes
Air outlet vanes are designed to prevent condensation from forming. Vanes are manually
adjustable on the 2 x 2 model units but driven by an electric motor on all other model units.
Where fitted, the motorized air vanes can be set to auto sweep or can be stopped in a fixed
position. Polystyrene blanking pieces are supplied with Cassette packing so that up to two
fascia discharge slots can be blanked off.
Alarm Status Relay
The unit shall include a relay for unit failure notification. Normally open contact available for
field connection.
Start / Stop Terminals
The unit shall include terminals for remote start/stop of the unit. The unit is enabled when
contact between the terminals is closed. (only on Electro-Mechanical controls)
