Heat Controller RSGxxS-1D Series - REFRIGERANT CHARGE MANAGEMENT; 8.1 CHARGING BY LIQUID PRESSURE; 8.2 CHARGING BY WEIGHT; 8.3 FINAL LEAK TESTING

8.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
.
Charge for all systems should be checked against the Charging Chart inside the
access panel cover.
IMPORTANT:Do not operate the compressor without charge in system. Addition of
R-410A will raise pressures (vapor, liquid and discharge).
If adding R-410A raises both vapor pressure and temperature, the unit is over-
charged.
IMPORTANT: Use industry-approved charging methods to ensure proper system
charge.
8.1 CHARGING BY LIQUID PRESSURE
The liquid pressure method is used for charging systems in the cooling and heating
mode. The service port on the liquid (small valve) and suction (large valve) is used
for this purpose.
Verify that the outdoor unit is running and the indoor air handler is delivering the
maximum airflow for this system size. Read and record the outdoor ambient tem
-
p
erature. Read and record the liquid and suction pressures at the ports on the liquid
and suction valves.
If refrigerant lines are sized using the nameplate charge, the correct liquid pressure is
found at the intersection of the suction pressure and the outdoor ambient.
1. Remove refrigerant charge if the liquid pressure is above the chart value. The Clean Air
Act prohibits releasing (venting) refrigerant into the atmosphere.
2. Add refrigerant charge if the liquid pressure is below the chart value.
8.CHECKING REFRIGERANT CHARGE
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing venting refrigerant into the atmosphere.
8.2 CHARGING BY WEIGHT
For a new installation, evacuation of interconnecting tubing and indoor coil is
adequate; otherwise, evacuate the entire system.
Note that charge value includes
charge required for 15 ft. of standard size interconnecting liquid line. Calculate actual
charge required with installed liquid line size and length, please see 6.1 of table of
contents.
With an accurate scale (+/-1 oz.) or volumetric charging device, adjust charge
difference between that shown on the unit data plate and that calculated for the new
system Installation. if the entire system has been evacuated, add the total calculated
charge.
21
8.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
.
Charge for all systems should be checked against the Charging Chart inside the
access panel cover.
IMPORTANT:Do not operate the compressor without charge in system. Addition of
R-410A will raise pressures (vapor, liquid and discharge).
If adding R-410A raises both vapor pressure and temperature, the unit is over-
charged.
IMPORTANT: Use industry-approved charging methods to ensure proper system
charge.
8.1 CHARGING BY LIQUID PRESSURE
The liquid pressure method is used for charging systems in the cooling and heating
mode. The service port on the liquid (small valve) and suction (large valve) is used
for this purpose.
Verify that the outdoor unit is running and the indoor air handler is delivering the
maximum airflow for this system size. Read and record the outdoor ambient tem
-
p
erature. Read and record the liquid and suction pressures at the ports on the liquid
and suction valves.
If refrigerant lines are sized using the nameplate charge, the correct liquid pressure is
found at the intersection of the suction pressure and the outdoor ambient.
1. Remove refrigerant charge if the liquid pressure is above the chart value. The Clean Air
Act prohibits releasing (venting) refrigerant into the atmosphere.
2. Add refrigerant charge if the liquid pressure is below the chart value.
8.CHECKING REFRIGERANT CHARGE
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing venting refrigerant into the atmosphere.
8.2 CHARGING BY WEIGHT
For a new installation, evacuation of interconnecting tubing and indoor coil is
adequate; otherwise, evacuate the entire system.
Note that charge value includes
charge required for 15 ft. of standard size interconnecting liquid line. Calculate actual
charge required with installed liquid line size and length, please see 6.1 of table of
contents.
With an accurate scale (+/-1 oz.) or volumetric charging device, adjust charge
difference between that shown on the unit data plate and that calculated for the new
system Installation. if the entire system has been evacuated, add the total calculated
charge.
21
8.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
.
Charge for all systems should be checked against the Charging Chart inside the
access panel cover.
IMPORTANT:Do not operate the compressor without charge in system. Addition of
R-410A will raise pressures (vapor, liquid and discharge).
If adding R-410A raises both vapor pressure and temperature, the unit is over-
charged.
IMPORTANT: Use industry-approved charging methods to ensure proper system
charge.
8.1 CHARGING BY LIQUID PRESSURE
The liquid pressure method is used for charging systems in the cooling and heating
mode. The service port on the liquid (small valve) and suction (large valve) is used
for this purpose.
Verify that the outdoor unit is running and the indoor air handler is delivering the
maximum airflow for this system size. Read and record the outdoor ambient tem
-
p
erature. Read and record the liquid and suction pressures at the ports on the liquid
and suction valves.
If refrigerant lines are sized using the nameplate charge, the correct liquid pressure is
found at the intersection of the suction pressure and the outdoor ambient.
1. Remove refrigerant charge if the liquid pressure is above the chart value. The Clean Air
Act prohibits releasing (venting) refrigerant into the atmosphere.
2. Add refrigerant charge if the liquid pressure is below the chart value.
8.CHECKING REFRIGERANT CHARGE
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing venting refrigerant into the atmosphere.
8.2 CHARGING BY WEIGHT
For a new installation, evacuation of interconnecting tubing and indoor coil is
adequate; otherwise, evacuate the entire system.
Note that charge value includes
charge required for 15 ft. of standard size interconnecting liquid line. Calculate actual
charge required with installed liquid line size and length, please see 6.1 of table of
contents.
With an accurate scale (+/-1 oz.) or volumetric charging device, adjust charge
difference between that shown on the unit data plate and that calculated for the new
system Installation. if the entire system has been evacuated, add the total calculated
charge.
21