Installation Instructions - Johnson Controls CSA-H/BRAW 50 T Hinweise Zum Einbau

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
Packing
Packing is made of recyclable
material. Its eliminate should be
carried out in accordance with the
existing local regulations on selective col-
lection of residual material.
Refrigerant
Contains greenhouse effect fluorided gas
covered by the Kyoto protocol.
For the type of gas and quantity per system,
see the identification plate.
GWP (Global Warming Potential): 2107.
Elimination of the unit
Upon disassembly of the unit, its compo-
nents should be recuperated ecologically.
The cooling circuit contains refrigerant which
should be recovered and returned to the gas
manufacturer for recycling.
Oil will remain in the sealed compressor
and, therefore, it must be returned with its
circuit sealed.
The air conditioning unit will be deposited in
an area established by the local authorities,
for its selective recuperation.
Safety
Installation and maintenance operations of
this air conditioning system should be carried
out only by qualified and expert personnel.
Periodical maintenance operations, such as
cleaning the coils and air filters, should be
carried out so as to keep unit performance
at an optimum.
Caution
This unit should be installed and
used in accordance with:
- Low Voltage Electrotechnical Regula-
tions.
- Safety Regulations for Cooling Plants and
Installations.
- Regulations on Pressure Equipment.
- Basic Construction Standards.
- Local ordinances
Transportation
The units should always be transported in
a vertical position so as to avoid oil leaking
out of the compressor. If, for any reason, this
position need be changed sporadically, they
will remain in that position a strictly neces-
sary period of time.
Handling
This unit should be handled by using the
metal rails supplied for fastening and trans-
portation.
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Warning signs
The following signs indicate the presence of
possible dangerous conditions for the users
or maintenance personnel. When found on
the unit, their meaning should be taken into
account.
Fig. 1
This symbol indicates an electrical risk or
hazard.
Fig. 2
Caution: The unit is equipped with a remote
control system and can start automatically.
Before having access to the interior of the
unit, disconnect the power supply so as to
avoid any contact with the fan turbine in
motion.
Fig. 3
Caution: Fan in operation.
Fig. 4
Caution: It is obligatory to read the instruc-
tions prior to any handling.
Fig. 5
Caution: Do not touch hot surfaces.
Fig. 6
Attention: Possible gas leaks due to inad-
equate handling.
Location
Before locating the unit in place, check the
specifications described on same to be sure
you have received the adequate product.
The unit should be placed on a perfectly
horizontal plane, making sure the base can
support the weight of the unit.
If you want to insure the absence of vibra-
tion, the unit can be placed on a cork or
similar antivibratory base, or fastened to its
base with antivibratory plates or supports.
Figure 11 indicates the clearances and
fastening points for each model.
Fastening the unit
Before installing the unit, make sure the
structure can withstand the weight of
same.
If the unit is placed on the floor, a concrete
base should be prepared so as to distribute
its weight evenly. See Fig. 7.
Clearances
The installation of each unit should have
clearances for:
a) Air intake and discharge.
b) Maintenance servicing.
c) Power supply connection.
For correct operation, always respect the
minimum distances indicated in the general
dimensions diagrams with regard to pos-
sible obstructions of free air circulation or
maintenance servicing.
GB
Wiring
Electrical connections
The established national regulations
should be followed in all cases.
Each unit is supplied with a control box to
which the power supply will be connected
through a fused main switch or an automatic
switch.
Warning
Loose cables can produce overheating of
the terminals or an incorrect operation of the
unit. A fire hazard may also exist. Therefore,
make sure all cables are connected tightly.
Scroll compressors,
rotational direction
The Scroll compressors operate
correctly in one single rotational direction.
Although these units are protected by a
phase sequence detector, the rotational
direction should be checked when starting
these equipment.
If it is not correct:
- The compressor does not compress.
- It makes an unusual noise.
- Amp consumption is lower.
- It overheats.
The phase detector should have the led son
for operation to be correct.
- Green led on means: Power ON.
- Yellow led on means: Relay ON.
Hydraulic connections
The hydraulic connections of the water
intake and outlet of the chiller should be
carried out respecting the intake and outlet
directions indicated.
Galvanised iron or copper tubing can be
use, with dimensions no lower than those
indicated, and keeping in mind the pressure
drops of said connections and of the internal
exchanger of the installation.
Pump dimensioning should be carried out
considering a nominal flow that allows an
∆t within the operating limits.
In all cases, a flow switch should be installed
so as to avoid the possibility of operation
without water circulation.
An expansion vessel should be installed in
the water return tubing.
This vessel must be adequate for the total
water volume of the installation.
During the winter season, with outdoor tem-
peratures below 0°C, precautions should be
taken to avoid the water from freezing in the
tubing networks.
Usual application is to fill the circuit with an
antifreeze mixture (glycol).