PANTHAIRE PTHEXT Outdoor Condensing Unit Installation Guide

PANTHAIRE PTHEXT Outdoor Condensing Unit

Product Usage Instructions

• Before operating the unit, read and follow the instructions and warnings in this manual.
• The operator must be a trained professional in refrigeration systems, refrigerants, and the dangers of pressurized components.
• If the operator cannot read these instructions, operating instructions and safety precautions must be read and discussed.
• The user must dedicate the unit to only one type of refrigerant (R134). Do not attempt to adapt the unit for another refrigerant.
• Do not mix refrigerant types through a system or in the same container; mixing of refrigerants will cause severe damage to the unit. Disconnect the power before servicing the unit.
• The condensing unit must be installed in a horizontal position and fixed using the fixing points, eventually adding anti-vibration materials as an intermediate layer.

FAQ

• Q: Can I use a different refrigerant type other than R134 in the unit?
• A: No, it is strongly recommended to only use R134 refrigerant in the unit. Using a different refrigerant can cause severe damage.
• Q: How should I position the condensing unit during installation?
• A: The condensing unit must be installed horizontally and securely fixed using the provided fixing points. Anti-vibration materials can be added as an intermediate layer.
• Q: What precautions should I take before servicing the unit?
• A: Before servicing the unit, ensure to disconnect the power supply. Always follow the instructions provided in the manual and seek assistance from a trained professional if needed.

Safety Recommendations

When installing and using the unit please follow the recommendations listed below.

• Installation shall be carried out in strict compliance with the diagrams and instructions supplied by the manufacturer.
• Damages due to improper installation are excluded.
• The electric system available where the unit is installed shall meet the relevant standards in force.
• Maintenance shall be effected by trained personnel or by the manufacturer according to the provisions supplied by our team.

WARNING
Use safety gloves to protect your hands from possible cuts and burns

• The user is strongly recommended to contact the manufacturer before attempting any interventions on the unit and any use not corresponding to the manufacturer’s indications (in particular for the field of application) and to enquire about the possible dangers and contra-indications connected with improper use of the machine.
• The unit shall be used following these instructions and sticking to the destination of use indicated by the supplier. Any incorrect use can result in damage to the unit and could become a serious health hazard.

ATTENTION

• The unit is not suitable for working in salty environments.
• In such a case, the condenser and evaporator must be protected with appropriate means.
• When maintenance involves operations on the refrigerating circuit, you must empty the system and let it reach the atmospheric pressure.

ATTENTION

Do not discharge the refrigerant into the atmosphere. It must be recovered by a specialised certified HVAC/Refrigeration technician using suitable equipment.

• Quantity and quality of the refrigerant to be charged and indicated on the data plate.
• Do not use refrigerants of a different brand (especially inflammable fluids, e.g. hydrocarbons) or air.
• Do not modify or alter the refrigerating circuit or its components (e.g. welding on the compressor body)

Instructions for Safe Operation of the Equipment

1. Qualified technicians, who must refer to the electric schemes printed on the compressor, must attach the electrical connection of the condensing unit to the power supply.
2. In order to avoid damage, it is very important to remove all impurities (dirt, welding residuals, etc.) in the circuit before any work is begun.
3. Before starting the machine, it is necessary to make sure the system is correctly filled with refrigerant and that all valves are completely open.
4. It is not allowed to stand against an air outlet or stand on the top of a unit.

Emissions

• There is no radioactive, poisonous or acidic material.

Specification and Installation

Storage and Transportation

• Store the machine in a dry place in its original packaging.
• The storage temperature must be between -20°C and +60°C.
• Use the original packaging for transportation and handle with care.

Dimensional Drawings for Panthaire Outdoor Condensing Unit

Pipe Size Connections

• Suction 1/2”
• Liquid 3/8”

ATTENTION

• Avoid Exposing the condensing unit to direct sunshine.
• When the unit is powered up, all panels must be closed.
• Allow only qualified personnel to operate the unit.

Installation of Condensing Unit

• Before operating the unit, read and follow the instructions and warnings in this manual.
• The operator must be a trained professional in refrigeration systems, refrigerants, and the dangers of pressurized components.
• If the operator cannot read these instructions, operating instructions and safety precautions must be read and discussed.
• The user must dedicate the unit to only one type of refrigerant (R134). Do not attempt to adapt the unit for another refrigerant.
• Do not mix refrigerant types through a system or in the same container; mixing of refrigerants will cause severe damage to the unit.
• Disconnect the power before servicing the unit.

General Information

• The condensing unit must be installed in a horizontal position and fixed using the fixing points, eventually adding anti-vibration materials as an intermediate layer.

Cleaning of the Circuit

• Use inert gas in the pipes during the welding process.
• Use only materials and components that are specific for refrigerating circuits.
• Before starting, to avoid damage, it is very important to remove all impurities (dirt, welding residuals, etc.) in the circuit.
• These impurities can damage the compressor.
• To avoid this, a filter is already mounted on the suction line, which causes very little pressure loss.

Evacuation of System

• To obtain a regular operation the circuit must be evacuated to a pressure of at least 3MPa, keeping the suction and liquid line valves closed.
• A correct evacuation lowers the relative humidity to 10 ppm.

Pressure Test

• Once the condensing unit has been connected to the circuit the suction and liquid line valves must remain closed during the test to avoid the entrance of air and Humidity.
• The pressure for this test carried out with nitrogen, may not be higher than the one shown on the unit’s tag.
• If the maximum working pressure that may be set by the controls and other components is lower than the specified value, limit the pressure to that value.

WARNING

• This condensing unit should not be used on pump down. You must use an interconnecting cable to control it.

Electrical Connections

• The electrical connection of the condensing unit to the power supply must be made by qualified technicians, who must refer to the electrical schematic printed on the panel near the compressor.
• The choice of the main switch, contactors, single-pole switch, cross-section and isolation of the wires must be made according to the rules in force and taking into consideration the electrical specifications stated on the machine’s tag and enclosed documentation.

Note: The supply must range from ± 10% from the value indicated on the machine’s tag.

All compressors are equipped with winding overheat protection. This protection consists of a klaxon in the compressor, which interrupts the operation in case of excessive temperature.

Important Safety Measures

• The unit must be earthed. The unit is to be serviced by trained personnel only.
• Please install the unit according to the wiring diagram.

CAUTION

• Refrigerating compressors must be employed only for the use they are made for; only approved refrigerants and refrigerating oils may be used. Do not start the condensing unit if it is not connected to a refrigerating circuit or if it is not charged with refrigerant.
• The unit may not be started if it isn’t equipped with its calibrated safety controls. Furthermore it is not advised to use the compressor to evacuate the circuit, in order to avoid damages to the motor.

Always close the panel that covers the electric connections before starting the machine to avoid the possibility of electrocution.

• Before starting the machine it is necessary to make sure the system is correctly filled with refrigerant and that all valves are completely open.
• If the refrigeration circuit contains air the “diesel effect” may occur, this is what happens when the air that enters in the compressor forms a mixture with the oil, which can explode and destroy the compressor with harm to persons nearby.
• Even if correctly used, the compressor and the pressure line piping may reach temperatures that may cause burning if touched.

WARNING

• If refrigerant escapes avoid contact with skin and eyes.
• If the refrigerant needs to be removed from the system, don’t disperse it into the environment, make sure to use the specific equipment required for collecting the refrigerant. Further information is available in our technical publications.
• Calibration and settings of the regulation & safety components Having completed the installation, it is necessary to verify the correct functioning of the regulation and safety components.

Maintenance

ATTENTION: Disconnect the power supply before maintenance operations.

Oil and Oil Level Control

• The oil used for refrigeration compressors is of a bright and transparent color. It maintains its color even after long operating periods.
• Eventual dark-colored shades are caused by impurities in the pipes or excessive temperature in the pressure part of the compressor and consequently, decomposition of the oil, forming acids.
• The market offers special kits, which measure the acidity of the oil.
• The type of oil used in the condensing units is specified on the machine’s identification tag.
• Every compressor is loaded with a sufficient oil quantity for normal operation. In larger capacity systems it might be necessary to add oil.

Filter Drier

• The unit is equipped with a humidity indicator. This makes it easy to determine if the filter must be replaced and the system checked for eventual leakage.
• Initially, it is recommended to check the humidity indicator every day, and later with longer intervals.

Condensers

• Air-cooled condensers must be cleaned frequently because of air contamination that flows through them.
• The fins may be cleaned with compressed air, possibly in the opposite direction of the refrigerated airflow, or with chemical products to remove the grease.
• Great care must be taken to avoid damaging the fins as this will restrict the air-flow and lead to possible overheating.

Unsoldering the Components of the System

In case of removal of the refrigerant, on the side of the high-pressure line, the low-pressure part of the compressor and the suction line may remain pressurized. If, in this case, a component situated on the low-pressure side is unsoldered, the pressurized mixture of oil and refrigerant may catch fire when brought into contact with the flame. It is therefore necessary to remove the refrigerant from both the high and low-pressure side and check the pressure left with the help of a pressure gauge before unsoldering a component.

Circuit Diagram

PTHEXTUNIT35

• MF: Motor of Fan
• CJ: Contactor
• R1:-2: Electric Heating
• LP: Low Pressure Switch
• HP: High Pressure Switch
• MC: Compressor
• C1: Motor Capacitor
• J1-2: Temperature Protector
• WK: Temperature Control Connection

Technical Data PTHEXTUNIT35

Model| HP| BTU| Electricity| Refrigerant| Temp.| Fan| Length| Width| Height| Suction| Discharge| Weight
---|---|---|---|---|---|---|---|---|---|---|---|---
PTHEXT| 0.5| 3500| 115V/1PH/6HZ| R134a| -5 to 43 0 C| 300s| 23”| 25”| 15.15”| 1/2 ”| 3/8”| 32kg

Contact Us

• Workman Street, Montreal, QC, H4C 1N8 3732
• www.panthaire.com
• www.panthaire.com

References

• Panthaire Ducted Unit

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