User's Manual

System Charge for Various Matched Systems

Outdoor Unit

THJD18

S41S3

THJD24

S41S4

THJD30

S41S4

THJD36

S41S4

THJD42

S41S4

THJD48

S41S4

THJD60

S41S4

Required Orifice or

TXV

.051/4F1 .054/4G1 .063/4G1 .071/4H1 .075/4H1 4J1 4K1

Factory Charge,

lbs-oz

6 – 6 9 – 6 9 – 0 10 – 0 9 – 10 14 – 2 13 - 13

Indoor Unit

2,3

Additional Charge, oz

FC/MC/PC/UC18 .051/TXV+0 -- -- -- -- -- --

FC/MC/PC/UC35 -- .059/TXV+0 .063/TXV+0 -- -- -- --

FC/MC/PC/UC43 -- .059/TXV+23 .063/TXV+25 .071/TXV+6 -- -- --

FC/MC/PC/UC60 -- -- -- -- .075/TXV+0 TXV_0 --

FC/PC/62 -- -- -- -- -- TXV+25 TXV+0

Footnotes:

1. For applications requiring a TXV use S1-1TVM*** series kit.

2. Systems matched with furnaces or air handlers not equipped with blower-off delays may require blower Time Delay Kit S1-2FD06700224.

3. PC coils cannot be used in downflow or horizontal applications. FC coils cannot be sued in horizontal applications.

Procedures:

1. Unit factory charge listed on the unit nameplate includes refrigerant for the outdoor unit, the smallest matched indoor unit, and 15 feet of

interconnecting line tubing.

2. Verify the TXV or orifice and additional charge required for specific matched indoor unit in the system using the above table.

3. Add additional charge for the amount of interconnecting line tubing greater than 15 feet at the rate specified in Physical and Electrical Data

table.

4. For indoor matches requiring additional charge, the refrigerant needs to be weighed in for specific matched indoor unit and line set lengths.

5. Permanently mark the unit nameplate with the total system charge. Total system charge = base charge as shipped plus charge adder for

matched indoor unit and charge adder for line set.

Thermo Products, LLC

5235 West State Road 10

North Judson, IN 46366