York SICH-070B Installation Instructions Manual Download

Page: 8 / 24

Installation instructions

Inspection

Upon reception, inspect the merchandise
and notify, in writing, the carrier and insur-
ance company of any possible damage.

Environmental protection

Eliminate the packing in accord-
ance with the regulations in force
on environmental conservation.

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 min-
utes prior to having access to the interior,
disconnect the power supply so as to avo-
id any contact with the fan turbine in mo-
tion.

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: Pulley and belt drive.

Evaporating units

Location

Locate the unit, preferably, near a wall lead-
ing to the exterior so as to facilitate installa-
tion and drainage.

Fastening the indoor unit to
the ceiling

Upon securing, make sure the unit is com-
pletely horizontal, or very slightly sloped to-
wards the drain, so as to avoid possible
drops of condensed water (use a bubble
level).
It is of great importance to be very careful
with the support of the indoor unit from the
ceiling. Make sure the ceiling is strong
enough to withstand the weight of the unit.
Prior to hanging, check each suspension
bolt installed.

Indoor unit air ducts

1.- Connect the ducts, isolating them from

the unit by means of a flexible hose,

preferably of non-combustible material,
so as to avoid the transmission of vibra-
tions of the unit. If the ducts are made of
flexible material, they do not transfer vi-
brations.

2.- It is advisable to fit a damper at each

discharge duct bypass so as to be able
to carry out an appropriate balance of
the system.

3.- Make sure to have easy access for

cleaning and changing the air filters.

Drainage connection

It is necessary to connect a condensed
water drain pipe to the evaporating unit.
Install the drainage tubing through a siphon.
Leave a minimum level difference of 25 mm.
between the height of the unit connection
and the line after the siphon (see Fig. 8).
Be sure to have easy access for filling the
siphon with water at the beginning of each
season.
The drainage line should be sloped at least
2 cms. for each meter in length.
Insulate the condensed water drain pipe so
as to avoid water dripping on the floor.

Drain pipe insulation

Insulate the condensed water drain pipe so
as to avoid water dripping on the floor (Fig. 9).
Make sure water is evacuated correctly
(Fig. 10).

Interconnection the units

Interconnecting the units

The cooling circuit of all Split units should
be checked for airtightness after assembly
to make sure there are no leaks.
This helps to achieve maximum services
with minimum consumption, and avoids se-
rious failures of the unit. Besides, this is also
an ecological precaution.

Wiring

Electrical connections

The established national regulations
should be followed in all cases.
Each air conditioner is supplied with a con-
trol box, to which the power supply will be
connected by means of a fused main switch,
or an automatic switch.
The electric heater, if applicable, should be
installed with independent power supply and
switches.

WARNING
Loose cables can produce overheating at
the terminals, or incorrect operation of the
unit. A fire hazard may also exist. Therefore,
make sure all cables are firmly connec-
ted.
Do not connect the power supply to the unit,
nor start it up until all tubing and wiring con-
nections are completed.
Make sure the power supply is connected
correctly to the units, as shown in the wiring
diagrams.

Power supply and intercon-
nection connecting diagrams

Power supply

Thermostat

Before final approval of the in-
stallation

Make sure that:

- The voltage is always be-

tween 198-254 V on 230 V
equipment, and 342-436 V on
400 V equipment.

- The power supply cable sec-

tion is, at least, that recom-
mended in the correspond-
ing wiring digrams.

- Condensed water drainage

is carried out correctly, and
there are no leaks in the wa-
ter circuit.

- Operating instructions have