choosing Mini-Split A/C Units Selection Tips DETAILED TECHNICAL SPECIFICATION



الحمد لله والصلاة والسلام على رسول الله وعلى آله وصحبه أجمعين 

choosing Mini-Split A/C Units Selection Tips 
DETAILED TECHNICAL SPECIFICATION

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Mini Split Air Conditioning Units must consist of an air cooled condensing unit 
and a matching fan coil unit, factory assembled, pre-wired
pre-charged and factory tested, capable of giving the required 
capacity at hot conditions, using (R407 or R410) – refrigerant
The unit should be internationally reputed ,have undisputed record of approval

Condensing unit

1) Casing
Casing must be constructed of heavy gauge M.S sheet
metal and must be firm and rigid 
Casing must have an approved anti-corrosive and heat
resistant paint finish 
2) Coil
Condenser coil must be made of seamless copper tube with
copper / aluminium straight fins, mechanically expanded over the tubes 
3) Compressor
Compressors must be of hermetic reciprocating or rotary
type of appropriate capacity and must be suitable for operation on
415 V, three phase, 50 Hz
240 Volts, single phase, 50 Hz
110 Volts, single phase, 60 Hz .. USA
supply with a permissible voltage
variation of +/-6%. Compressors must have inherent
thermal protection or external thermal overloads 
4) Condenser Fans
Condenser Fans must be multi-blade type directly mounted
on drip proof motor with Class “A” insulation and must be
suitable for operation on 415 volts, 3 phase, 50 Hz. or 240
volts, single phase, 50 Hz or 110 Volts, single phase, 60 Hz .. USA
supply with permissible voltage variation of +/-6%
Condenser fan motors must be provided
with inherent thermal protection 

Evaporator Unit 

Evaporator Unit must be wall-mounted / ceiling suspended type 

1) Casing
Casing must be of heavy gauge M.S. Sheet, with
decorative type stove enamel finish, and must be
provided with adjustable type air deflectors.
2) Evaporator Coil
Evaporator coil must be made of seamless copper tubes
with copper / aluminium fins mechanically bonded to the
tubes. Spiral fins are not acceptable. 
3) Fan
Fan must be multi-blade centrifugal, two or three speed
impeller type directly mounted on motor shaft and must
be easily accessible for maintenance. Fan motor must be
open type with Class “A” insulation, provided with
inherent thermal protection and suitable for 240 V, 50 Hz.
single phase or 110 Volts, single phase, 60 Hz .. USA power supply 
4) Air Filters:
Air Filters must be of permanent cleanable and washable type and 
must be easily accessible; thickness must be minimum 12.5 mm 

Other requirements

pre-charged and pre-insulated refrigerant tubing as supplied 
by manufacturer of the A/C Unit must be used
The insulation must be wrapped with 8-oz. canvas 
and painted with two coats of weatherproof paint 

في أمان الله 

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