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Additional R-410A Charge / TXV Size for Various Matched Systems
Outdoor Unit
Approved System Thermal Expansion Valve
Factory R-410A Charge, lbs-oz
2
Indoor Coil
FC/MC/PC43B
FC/MC/PC43C
FC/MC/PC48C
FC/MC/PC48D
FC/PC60C
FC/MC/PC60D
FC/MC62D
HC42
AV36
AV/SV48
AV/SV60
FOOTNOTES:
1. Systems matched with furnace or air handlers not equipped with blower-off delays may require blower Time Delay Kit 2FD06700224.
2. PC coils cannot be used in downflow or horizontal applications. FC coils cannot be used in horizontal applications.
3. A TXV kit must be used with these coils to obtain system performance.
Note: If a TXV is factory installed on the coil, it must be replaced with the listed TXV.
PROCEDURES:
1. Unit factory charge listed on the unit nameplate includes refrigerant for the condenser, the smallest evaporator and 15 feet of intercon-
necting line tubing.
2. Verify the TXV and additional charge required for specific evaporator coil in the system using the above table.
3. Additional charge for the amount of interconnecting line tubing greater than 15 feet at the rate specified in the Physical and Electrical
Data Table.
4. Permanently mark the unit nameplate with the total system charge. Total System Charge = Base Charge (as shipped) + adder for evap-
orator + adder for line set.
Unitary Products Group
YZH02411
1
1TVM903
14 - 12
0
–
–
+4
+8
+8
–
–
0
–
–
YZH03611
YZH04811
1TVM906
1TVM906
12 - 7
12 - 13
3
TXV Kit
- Additional Charge, Oz
0
–
0
–
0
0
0
0
+4
+4
+4
+4
+8
+8
0
–
0
–
+4
0
–
+4
345094-YTG-D-0108
YZH06011
1TMV906
14 - 8
–
–
–
–
0
0
+4
–
–
–
0
3
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