ActronAir CRQ2-14AS, Руководство по установке и пусконаладке

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ActronAir is constantly seeking ways to improve the design of it’s products, therefore specifications are subject to change without notice.
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See Diagram Below: See Diagram Below:
REFRIGERANT CHARGING
Checking for Subcooling:
1. From the R-410A Pressure/Temperature Chart record the corresponding Saturated Condensing Temperature (SCT)
at the given discharge pressure.
2. Calculate the system subcooling using the formula below:
Subcooling = SCT - LLT
3. If subcooling is within the range (see charging table below), there is no need to add/remove refrigerant.
• If subcooling is lower than minimum, the system is undercharged, it is necessary to add refrigerant.
• If subcooling is higher than maximum, the system is over charged . It is necessary to remove refrigerant.
Allow the systems to stabilise (15-30 mins) and repeat the step 1-3 until subcooling falls within the range specified in
the table below.
Checking for Superheat:
Maintaining the correct superheat is important for ensuring the evaporator is achieving maximum capacity and avoiding
excessive liquid refrigerant returning to the compressor.
1. From the R-410A Pressure/Temperature Chart record the corresponding Saturated Suction Temperature (SST) at
the given suction pressure.
2. Calculate the system super heat using the formula below:
Superheat = SLT -SST
NOTES:
1. Accurate pressure and temperature measuring tools should be used to achieve satisfactory results.
2. The sensor of a thermocouple must be in good contact with the area being measured and must be insulated in
order to obtain correct reading.
*
Use weighing scale when adding
or removing refrigerant charge.
Recommended liquid
line thermocouple
location during charging
heating
operation
cooling
operation
EEV
Service
Gauges
R-410A
*
Refrigerant
Container
Suction
Schrader Valve
Discharge
Schrader Valve