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This service manual covers the installation,
operation and maintenance of the Trane
HCCA chilled water Fan Coil. It should be
read thoroughly before installing the fan coil
unit.
Basic Unit
The Trane Model HCCA fan coil unit
consisting rigid galvanized steel casing,
copper tube/aluminum fin coil type heat
exchanger, fan board assembly, manual coil
air vent with drain pan, junction box with
terminal strip.
Unit casing manufactured by 1.2mm thick
galvanized steel with internal insulation of
3
9mm thickness, 108 kg/m
high density non-
flammable PU foam.
The standard unit is without return air
plenum, or selected with bottom return air
plenum or rear return air plenum in option,
while filter is another option associated to
the return air plenum.
General Information
Fan Board
All motors, with internal thermal temperature
cutout above 140°C, are permanent split-
capacitor, three speed, tap wound, induction
type for maximum efficiency. Motors have
permanently lubricated ball bearings and all-
direction, vibration isolating mountings to
ensure vibration free operation and
minimum noise. Motor wiring is enclosed by
flexible metal conduit and connected to the
junction box. All motors are performed in-
house test and finished unit test again prior
to shipment.
All unit sizes have both ends shaft for motor.
The material of fan wheel is galvanized steel
and mounted directly onto each shaft. The
DIDW centrifugal fans have balanced and
forward curved blades. Fan housings are
made of galvanized sheet steel. The fan
board can be simply removed by loosening
the fasteners for easy service purpose.
Coil
Coils are 3/8 inch OD copper tubes
mechanically bonded to Wavy 3B aluminum
fin collars. A manual air vent with drain line
to the drain pan is standard to avoid any
3
water drips when venting. Standard coils are
2
factory leak tested at 20 kg/cm
(20 Bar)
and are recommended for operation up to
2
13kg/cm
(13 Bar) working pressure.
Coils are fitted with either sweat connection
or female pipe thread connection. Cooling
while coil has one set of connection, hot
water heating option have two sets of
connection.
Available coils are 3 row cooling, 4 row
cooling, 6 row cooling, 3 row cooling + 1 row
heating, and 4 row cooling + 2 row heating.
Drain Pan
The drain pan is 25mm depth with 0.8mm
thickness galvanized steel c/w internal
epoxy resin coating.
For sure without leakage occur, the
fabrication of drain pan by one-piece
stamping process with seamless and no
joint. The standard insulation material is
5mm thickness, 27 kg/m
3
density PE foam.
The drain pan has one 3/4-inch male pipe
thread (JIS B 0203-1966) connection.
HCCA-SVX01A-EN
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