MRCOOL H4TXV01 Signature Series 1.5 - 2.5 Ton Thermal Expansion Valve Instructions

SPLIT SYSTEM AIR CONDITIONER

ACCESSORIES

Description

TXV Kit

Where Used

18, 24, 30

36, 42, 48

60

Kit Number

H4TXV01

H4TXV02

H4TXV03

H4TXV0*

REFRIGERATION DATA

Model

Refrig. Charge

(oz.) *

MAC16018A

MAC16024A

MAC16030A

MAC16036A

MAC16042A

MAC16048A

MAC16060A

*Factory charged for 15 feet of line set

** Adapter shipped with unit

73

73

88

113

140

156

192

TXV

H4TXV01

H4TXV01

H4TXV01

H4TXV02

H4TXV02

H4TXV02

H4TXV03

Refrigerant Line Size

Suction

3/4

3/4

3/4

7/8

7/8

7/8

1 1/8

Liquid

3/8

3/8

3/8

3/8

3/8

3/8

3/8

Outdoor Unit

Connection

Suction Liquid

3/4 3/8

3/4

3/4

3/8

3/8

7/8

7/8

7/8

7/8 **

3/8

3/8

3/8

3/8

Indoor Unit Connection

Suction

3/4

3/4

3/4

7/8

7/8

7/8

7/8

Liquid

3/8

3/8

3/8

3/8

3/8

3/8

3/8

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.

www.mrcool.com