Compact Waterside Fan Coil Specification - Lennox LC22 Installation Operation & Maintenance

COMPACT WATERSIDE FAN COIL SPECIFICATION

CASINGS
The casings shall consist of durable 1.2mm (18 gauge)
galvanised steel reinforced to form a rigid monoque
structure. All edges to be radiused and access panels to
be fixed with easy release self retaining fasteners.
DISCHARGE PLENUM
The discharge plenum shall be wholly lined with Class O
acoustic insulation. The plenum shall be provided with
200mm diameter spigots for duct connection.
DRIP TRAY
The drip tray shall be manufactured such that when the
unit is mounted level there shall be a positive fall for the
condensate water to the drain connection from all areas
of the drip tray. There shall be no areas where the water
can collect in pools. The drip tray shall be of single
component construction and be located under the coil
assembly and extend to include the valve pack
arrangement. The tray shall be fully insulated.
FANS
Double inlet double width fans shall be used, driven by a
motor using cradle type resilient mountings. The fan
impellers shall be 160mm diameter and of 'Tablock'
construction to ensure good performance and low noise.
Each impeller shall be dynamically balanced.
MOTORS
Motors shall be single speed permanent split capacitor
type. The motors used shall comply with BS5000 Part 11
1973 (revised 1989). Speed control shall be achieved by
applying a variable voltage to the motor winding. Motors
are to have maintenance free sealed for life bearings and
built in thermal overload protection.
INSULATION
Dual function thermal and acoustic insulation shall be
used and shall be to Class 0 specification.
COILS
All heat exchangers shall be tested at a minimum of 25
bar pressure. The coils shall be manufactured using
solid drawn copper tubes and aluminium fins. Each coil
shall be fitted with an air vent and drain cock.
COIL CONNECTIONS
All are to be BS2871 Part 1: 1971 and suitable for brazed
and compression fittings. Coil connections shall be at
40mm centres to enable easy fitment of industry
standard water control valves.
FILTERS
Standard filters shall be of washable type. They shall
have a performance classification of G2 in accordance
with EN779 (EU2) and flame resistance to DIN 53438:
Class 1
CONTROLS
All units shall be fitted with an illuminated On/Off switch
and three speed selector switch. Adjacent to this switch
are two additional switches that provide a fine tuning
capability. In total a selection of 27 speeds are available
with design settings factory set, and dependant on
transformer tapping connections. The unit is supplied
with a 24 volt AC transformer output to drive controllers
and actuators. The control box shall be of a hinge
arrangement with a single screw access to terminal strips
for customer connection.
PACKAGING
Units shall be supplied with shrink wrapped packaging to
prevent damage and dust contamination. Units shall be
clearly marked with the model identification and site
reference and supplied with installation instructions.
The units will be despatched on pallets with 5 or 6 units
per pallet dependant on unit sizes.
CERTIFICATION
Units shall be supplied with a CE label designating that
they comply with CE requirements for safety.
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