Instructions / Assembly

SPLIT SYSTEM AIR CONDITIONER
ACCESSORIES
Description Where Used Kit Number
TXV Kit
18, 24, 30
H4TXV01
36, 42, 48 H4TXV02
60 H4TXV03
H4TXV0*
REFRIGERATION DATA
Model
Refrig. Charge
(oz.) *
TXV
Refrigerant Line Size
Outdoor Unit
Connection
Indoor Unit Connection
Suction Liquid Suction Liquid Suction Liquid
MAC16018A
73 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
MAC16024A 73 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
MAC16030A
88 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
MAC16036A
113 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
MAC16042A 140 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
MAC16048A 156 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
MAC16060A 192 H4TXV03 1 1/8 3/8 7/8 ** 3/8 7/8 3/8
*Factory charged for 15 feet of line set
** Adapter shipped with unit
www.mrcool.com
1. Separate the distributor assembly and remove the piston orifice and used
teflon seal. Insert nozzle end of the expansion valve along with a new
teflon seal into the
distributor and tighten to 20 – 30 ft. lbs. Use backup wrench
on all wrench flats. Overtightening will crush the teflon seal and may
cause a leak.
2. Attach liquid line portion of distributor assembly along with new teflon seal
to the inlet of the expansion valve. Tighten to 20 – 30 ft. lbs. Use backup
wrench on all wrench flats. Overtightening will crush the teflon seal and
may cause a leak.
3. Connect the external equalizer line to the equalizer port on the suction line
and tighten to 8 ft. lbs.
4. Strap the superheat sensing bulb to the suction header.
If installing an expansion valve on an indoor coil that previously used a fixed
orifice, be sure to remove the existing fixed orifice. Failure to remove a fixed
orifice when installing an expansion valve to the indoor coil will result in
improper operation and damage to the system.