ActronAir PKV290T-L, Руководство по установке и пусконаладке, Страница: 50 / 60

PRELIMINARY DATA ONLY Ver. 5.01 210406
THIS LABEL TO BE REMOVED ON SIGN-OFF
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Installation and Commissioning Guide- Package Ducted Variable Capacity Commercial
Doc. Part No. 0525-067 Ver. 5 210414
Installation and Commissioning Guide
Variable Capacity Commercial
18. Refrigerant Charging
•
The units detailed on this guide are factory charged with R-410A refrigerant. Should there be need to add or remove
refrigerant, it is recommended to follow the charging method explained below.
• Never allow R-410A refrigerant to vent into the atmosphere. It is an offence to release refrigerant in Australia. Always
reclaim refrigerant using equipment and container dedicated for R-410A system use only.
• All work must be carried out in accordance with Australia and New Zealand refrigerant handling code of practice.
•
Only qualified technicians are allowed to perform any work described in this guide and specifically work related to
addition or removal of refrigerant.
•
R-410A refrigerant must always be charged in liquid state.
• Only during the compressor running condition the system can be charged through the suction service port on the
compressor suction line.
•
Changes in refrigerant charge must be noted to a label that is fixed to the unit for future reference.
CAUTION
The system of this unit operates with POE oil that rapidly absorbs moisture. The maximum time any system can be opened to
atmosphere is 15 minutes.
REFRIGERANT CHARGE DETAILS (R-410A)
Model Refrigerant Charge (g)
PKV290T-T 8,500
PKV330T-T 10,800
PKV290T-L/R 9,000
PKV330T-L/R 12,600
SUBCOOLING AND SUPERHEAT CHARGING METHOD
Parameters:
LLT = Liquid Line Temperature SLT = Suction Line Temperature
SCT = Saturated Condensing Temperature SST = Saturated Suction Temperature
Cooling and Heating Operation:
Adjust the refrigerant charge to obtain the correct superheat and subcooling for optimal performance as follows:
1. Ensure that air filters are fitted and total system airflow is achieved. (Air filters are not supplied with the unit, it is the
responsibility of the installing contractor to provide and fit adequate return air and outside air filters).
2. Connect service gauges to the schrader valves.
3. Start the unit in cool mode ensuring that compressors are in 100% operation before taking service gauges reading. Allow
the system to stabilize for next 15-30 minutes before recording.
Record the discharge pressure, suction pressure, liquid line temperature and suction line temperature for all of the
refrigeration circuits:
Discharge Pressure: kPa
Liquid Line Temperature ( LLT ):
°C
Suction Pressure: kPa
Suction Line Temperature (
SLT
)
°C