Installation Instructions
Inspection
Upon reception, inspect the merchandise and notify both the carrier and the insurance 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 collection of residual material.
Elimination of the unit
Upon disassembly of the unit, its components 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 Regulations.
-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 necessary period of time.
Handling
This unit should be handled by using the metal rails supplied for fastening and transportation.
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 instructions prior to any handling.
Fig. 5
Caution: Do not touch hot surfaces.
Fig. 6
Attention: Possible gas leaks due to inadequate 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 vibration, 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 possible obstructions of free air circulation or maintenance servicing.
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, just like the fans, operate correctly in one single rotational direction. When starting the equipment up, make sure this rotational direction is correct. If it is not correct:
-The compressor does not compress.
-It makes an unusual noise.
-Amp consumption is lower.
-It overheats.
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 Δt 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 temperatures below 0°C, precautions should be taken to avoid the water from freezing in the tubing networks and inside the exchanger.
Usual application is to fill the circuit with an antifreeze mixture (glycol).
