5612272-UTG-H-1221
Johnson Controls Ducted Systems
5
SYSTEM CHARGE FOR VARIOUS MATCHED SYSTEMS - A COIL
CHARGING
1. Check the factory unit charge listed on the unit nameplate to verify the refrigerant charge for the outdoor unit, the smallest matched indoor unit,
and the 15 ft of interconnecting refrigeration piping.
2. Verify the indoor metering device and additional charge required for the specific matched indoor unit in the system using the table above.
3. Add additional charge for the amount of interconnecting refrigeration piping greater than 15 ft at the rate specified in the
Physical and electrical
data
table.
4. For installations requiring additional charge, weigh in refrigerant for the specific matching indoor unit and actual refrigeration piping length.
5. After weighing in the charge adders for the matched indoor unit and refrigeration piping, verify the system operation against the temperatures
and pressures in the charging chart for the outdoor unit. Locate the charging charts on the outdoor unit and also in the
Service Data Application
Guide
on
www.simplygettingthejobdone.com.
Follow the subcool or superheat charging procedure in the
Installation Manual
according to the
type of indoor metering device in the system, and allow 10 min after each charge adjustment for the system operation to stabilize. Record the
charge adjustment made to match the charging chart.
6. Permanently stamp the unit nameplate with the
total system charge
defined as follows: total system charge = base charge (as shipped) +
charge adder for matched indoor unit + charge adder for actual refrigeration piping charge adjustments to match the charging chart.
Outdoor unit
RHP14L18B23
S
RHP14L24B23
S
RHP14L30B23
S
RHP14L36B23
S
RHP14L42B24
S
RHP14L48B23
S
RHP14L60B23
S
Required indoor
metering device
1
,
2
1. For applications that require a TXV, use S1-1TVM*** series kit.
2. Use a TXV kit with these indoor units to obtain system performance.
BA
BA1
BA1
BC1
BC1
BC1
BC1
Defrost jumper pin
setting
2
2
2
3
2
4
2
Indoor unit
3,4,5
3. Systems matched with furnaces or air handlers not equipped with blower-off delays may require blower time delay.
4. Do not use XAH coils in upflow or downflow applications. Do not use XAF coils in horizontal applications.
5. Charge adders shown above do not indicate that coils are rated for every application. See the performance data tables for actual performance for specified system
matches. Obtain certified system ratings from
www.ahridirectory.org.
Additional charge (oz)
XAF/XAUA24B
12
0
–
–
–
–
–
XAFB24B
12
0
–
–
–
–
–
XAF/XAUB30C
–
–
0
–
–
–
–
XAFA30D
–
–
–
0
–
–
–
XAFC30C
–
–
0
–
–
–
–
XAF/XAUB36D
–
–
–
0
–
–
–
XAFC36D
–
–
–
0
–
–
–
XAF/XAUC48F
–
–
–
1
2
–
–
XAFD48F
–
–
–
1
2
–
–
XAF/XAUD60G
–
–
–
–
28
1
–
XAFD60J
–
–
–
–
–
–
0
XAH24B (A,B)
12
7
–
–
–
–
–
XAH30C (B,C)
–
–
5
–
–
–
–
XAH36D (B,C)
–
–
–
1
–
–
–
XAH48F (C,D)
–
–
–
2
0
–
–
XAHD60G
–
–
–
–
5
0
–
XAHD60J
–
–
–
–
–
–
4
Note
: Some of the combinations shown in this table require advanced main air circulating fan indoor product. For approved coil only matches, see
the
SYSTEM CAPACITY - Upflow, Downflow, and Horizontal Furnaces and Coils (Coil Only Ratings)
table.
