CACG/CAHG & CACH/CAHH
Air Handlers
• Installation, Operation and Maintenance Manual •
P/N 240007756, Rev. A [051509]
7
Made in the USA
Piston/Orifice Replacement
(when required)
NOTICE — model 24 with T2, T3 or T4 condenser
Piston/orifice replacement
— The factory-installed piston/orifice must be replaced
when a model 24 air handler is matched with a T2CG/T2HG4400, T2CG/T2HG2400
or T2C/T3CG/T3H2240 condenser that has a 24,000 Btuh compressor (designated
by a “4” in the capacity decoding field). The piston will need replacement only on the
24,000 Btuh zone.
All other applications use the factory-installed orifice.
Follow these instructions to replace the orifice
BEFORE
mounting the unit.
Replacing the piston/orifice
Disassemble the orifice joint, remove the
1.
factory-installed orifice, and replace with
the orifice listed in Figure 1 (supplied in
the Kit Bag).
Piston/orifice replacement
Figure 1
Model
Condenser
Factory-installed orifice size
(Inches)
Replacement orifice size
(Inches)
CAHG/
CAHH
24
T2C/T2H4400
T2C/T2H2400
T3C/T3H2240
0 054
0 047
Make sure the o-ring is in good condition
2.
and properly installed.
