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Installation Instructions
Inspection
Upon reception, inspect the equipment and
notify both the carrier and the insurance
company, in writing, of any possible dam-
age.
Environmental protection
Eliminate packing in accordance
with the regulations in force on en-
vironmental conservation.
Safety
Installation and maintenance operations of
this air conditioning system should be car-
ried out only by qualified and expert per-
sonnel. Periodical maintenance operations
should be carried out, such as cleaning the
coils and air filters, so as to keep unit per-
formance at an optimum.
Caution
This unit should be installed and
used in accordance with:
-
Low Voltage Electrotechnical
lations.
-
Safety Regulations for Cooling Plants
and Installations.
-
Regulations on Pressure Equipment.
-
Basic Construction Standards.
-
Technical Construction Standards.
-
Local ordinances.
Location
(Fig. 1 to 3)
To be installed directly outdoors. Place the
unit on a consistent base and fasten by
means of bolts.
Outdoor units
These units are supplied with an adequate
refrigerant load for an interconnecting
tubing length of 4 meters.
Each unit includes a connecting elbow for
Limits of use
Voltage limits
Nom. 230 V
Máximo
Mínimo
198
254
Notes: WB = Wet bulb. DB = Dry bulb.
(1) This equipment can operate, for a short interval of time, at a temperature beyond limits until the occupied space is conditioned.
11
the condensed water drain (on heat pump
models only). Each compressor is equipped
with an acoustic isolation casing to reduce
noise to a minimum.
Installation
Unit installation comprises:
- Unit mounting.
- Refrigerant tubing connections.
- Condensed water drain connections in
heat pump units.
- Unit wiring.
Clearances, outdoor unit
A minimum clearance is required around the
units for the circulation of air and access for
maintenance servicing, as indicated in the
general dimensions.
Interconnection of the units
When installing Split units, the cooling cir-
cuit should be completely leakproof after
mounting.
This will help to obtain maximum perform-
ance with minimum consumption, and avoid
serious damage to the unit. This is an eco-
logical precaution as well.
R e g u -
Installation of interconnecting
tubing
The length of the interconnecting tubing of
the units should be as short as possible. The
maximum admissible distances with regard
to the circuit and standard tubing diameters
are indicated on each apparatus of the cor-
responding indoor units.
Tubing to be used
Special care should be taken that the tub-
ing that interconnects the two units is kept
clean and dry, even prior to installation. It is
advisable to take into account the following
recommendations:
- Use copper refrigerant quality tubing only.
- Do not work outdoors when raining.
- The ends of the tubing should remain
closed during installation.
Air intake temperature to outdoor coil DB
Operating cycle
Minimum °C
Cool
Heat
19
-10
(1)
Maximum °C
Cool
Heat
Cool WB
46
24
GB
- Do not leave dryer filters or the compres-
sor out in the open air.
- For welding use low melting point rods
with a 5% silver content, minimum.
- When welding and as long as the tubing
is hot, maintain a flow of dry nitrogen so
as to avoid internal rusting and scaling
that could cause contamination and ob-
structions.
- Do not use strippers on copper-copper
joints.
- Connection between units should be car-
ried out by means of the flaring method.
Insulation of refrigerant tubing
Due to the fact that the capillary tubing is
installed in the outdoor unit, both the larger
as well as the smaller diameter tubes are in
the relative low pressure side of the sys-
tem.
Consequently, to avoid condensed water
dripping on the floor, both tubes should be
insulated adequately. The thickness of same
should be at least 8 mm. See Fig. 4.
Emptying and dehydrating
(Fig. 5)
Air does not act as a refrigerant since it can-
not be liquefied by the compressor. Any air
and humidity remaining in the cooling sys-
tem has undesirable effects, as indicated
below. Consequently, they should be elimi-
nated completely.
- High pressure increases.
- Consumed power supply increases.
- Equipment performance decreases.
- Water contained in the air could freeze
and block the capillaries.
- Water can cause corrosion of certain parts
of the circuit, and deterioration of the com-
pressor.
Process
In each circuit, with the valves closed:
1- Connect a vacuum pump and service
pressure gauges.
2- Carry out a vacuum of at least 200 mi-
crons.
3- Detect leaks.
Air intake temperature to indoor coil
Operating cycle
Minimum °C
Heat DB
Cool WB
15
10
(1)
Maximum °C
Heat DB
23
32
(1)
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