Installation Instructions - Johnson Controls SOC076K/AHO-204FG Instrucciones De Instalación

Installation Instructions

Inspection
Upon reception, inspect the merchandise
and notify both the carrier and the insur-
ance company, in writing, of any possible
damage.
Environmental protection
Eliminate packing in accordance
with the regulations in force on
environmental conservation.
During installation and maintenance, keep
in mind that HFC-407C (see identification
plate) POE oil are used.
Warning signs
These signs on the unit indicate potentially
dangerous conditions, and their meaning
should be taken into account.
Fig. 1
This symbol indicates an electrical risk or
danger.
Fig. 2
Attention: The unit is equipped with remote
control and can start automatically. Two
minutes prior to having access to the interior,
disconnect the power supply so as to avoid
any contact with the fan turbine in motion.
Fig. 3
Attention: It is obligatory to read the instruc-
tions prior to any handling.
Fig. 4
Attention: Fan in operation.
Fig. 5
Attention: Do not touch hot surfaces.
Fig. 6
Attention: Possible gas leak due to inad-
equate handling.
Fig. 7
Attention: Belt and pulley drive.
Safety
Installation and maintenance operations
of this air conditioning system should be
carried 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-
Diameter of interconnecting tubing
Model
SOC076K, 150K/AHO-204, 454FG
SOH076K, 150K/AHO-204, 454BG
SOC090K, 120K, 180K/AHO-304, 404, 604FG
SOH090K, 120K, 180K/AHO-304, 404, 604BG
SOC240K/AHO-804FG
SOH240K/AHO-804BG
SOC300L/AHO-1004FG
SOH300L/AHO-1004BG
12
formance at an optimum at all times.
Caution
This unit should be installed and
used in accordance with:
- Low Voltage Electrotechnical
Regulations.
- Safety Regulations for Cooling Plants and
Installations.
- Regulations on Pressure Equipment.
- Basic Construction Standards.
- Technical Construction Standards.
- Local ordinances.
Location
To be installed directly outdoors. Place the
unit on a consistent base and fasten by
means of bolts.
Installation
Unit installation comprises:
- Unit mounting.
- Refrigerant tubing connections.
- Unit wiring.
- Refrigerant load.
Clearances, outdoor unit
A minimum clearance is required around the
units for the circulation of air and easy ac-
cess for maintenance servicing, as indicated
in the dimensions diagram.
Interconnection of the units
When installing Split units, the cooling circuit
should be completely airtight after mounting
to insure there are no leaks.
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.
Installation of interconnecting
tubing
The length of the interconnecting tubing of
the units should be as short as possible.
The maximum admissible distances with
the circuit and standard tubing diameter are
those indicated in each one of the sections
on the corresponding 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
Gas line Liquid line diameter
diameter (larger tubing)
(smaller tubing)
1 / "
1
8
(28.5 mm)
1 3 / "
8
(35 mm)
1 / "
3
8
(35 mm)
GB
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.
- 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 obstruc-
tions.
- Do not use strippers on copper-copper
joints.
- Connection between units should be car-
ried out by means of the flaring method.
Filter-dryer. Liquid sight glass
For units with R407C refrigerant, it is rec-
ommendable to install a filter-dryer in the
liquid line.
When installing an indoor unit other than the
one recommended by the manufacturer, it
is necessary to install a sight glass in the
connecting pipes.
Insulation of refrigerant tu-
bing
To avoid condensed water from pipes falling
on the floor, both should be insulated with
adequate insulation. The thickness of same
should be at least 12 mm.
Emptying and dehydrating
Air does not act as a refrigerant since it
cannot be liquefied by the compressor. Any
air and humidity remaining in the cooling
system 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 compressor.
Process
In each circuit:
1 - Connect a vacuum pump and service
pressure gauges.
2 - Carry out a vacuum of up to at least 50
microns.
3 - Detect leaks.
Refrigerant load
1/2"
The refrigerant load is calculated for a tubing
(12.7 mm)
length of 7.5 m. See refrigerant load in the
5/8"
following table, in accordance with model
(15.87 mm)
and size.
7/8"
(22.2 mm)
Adjusting and checking refrigerant
7/8" load
(22 mm)
For tubing lengths longer or shorter than