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5443702-CTG-C-0919
SYSTEM CHARGE FOR VARIOUS MATCHED SYSTEMS
Outdoor Unit
1
Indoor Unit
AVV25BE121
AVV37BE221
AVV37CE221
AVV49CE321
AVV49DE321
AVV61CE421
AVV61DE421
CM25BE1A1
CM37BE2A1
CM37CE2A1
CM49CE3A1
CM49DE3A1
CM61CE4A1
CM61DE4A1
All of the combinations shown in the above System Charge table require Advanced Main Air Circulating Fan indoor product. "Coil Only" matches
are not available for these systems.
FOOTNOTES:
1. Charge adders shown above do not indicate that coils are rated for every application. Refer to Performance Data Tables for actual performance for specified
system matches. Obtain certified system ratings from www.ahridirectory.org.
CHARGING PROCEDURES:
1. Determine outdoor unit factory charge from Tabular Data Sheet.
2. Determine indoor coil adjustment (if any) from Tabular Data Sheet.
3. Calculate the additional charge for refrigerant piping using this Tabular Data Sheet if line length is greater than 15 feet (4.6 m).
4. Total system charge = item 1 + item 2 + item 3.
5. The manifold gauge set is already installed on the unit for evacuation and charging. Use these gauges to initially charge the system using system pressures and
subcooling. Before charging put the equipment into "Service Mode" at the outdoor control. You will find the charging information printed on the bottom of the unit
data tag. More charging information is available in the "Service Data Application Guide", available online. For subsequent annual maintenance visits the charge
verification display can be used to quickly check overall system condition and the system charge without attaching a separate manifold gauge set or temperature
sensors..
6. Permanently mark the unit data plate with the total amount of refrigerant in the system.
It is recommended before starting the system to connect the thermostat to Wi-Fi using a local network or portable hot-spot so the
thermostat and system receive the latest software updates to optimize system performance.
4
AC21B2421S
AC21B3621S
0
–
–
–
–
–
–
0
–
–
–
–
–
–
IMPORTANT
AC21B4821S
Additional Charge, oz
–
–
0
–
0
–
–
0
–
0
–
–
–
–
–
–
0
–
0
–
–
0
–
0
–
–
–
–
Johnson Controls Ducted Systems
AC21B6021S
–
–
–
–
–
0
0
–
–
–
–
–
0
0
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