REFRIGERANT PIPING LENGTH LIMITATIONS

Liquid Line Sizing and Maximum Total Equivalent Lengths{ for Cooling Only Systems with Puronr Refrigerant:

The maximum allowable length of a residential split system depends on the liquid line diameter and vertical separation between indoor and outdoor units.

See Table below for liquid line sizing and maximum lengths :

Maximum Total Equivalent Length

Outdoor Unit BELOW Indoor Unit

 

 

Liquid

 

AC with Puron Refrigerant Maximum Total Equivalent Length{: Outdoor unit BELOW Indoor

 

Size

Liquid Line

Line

 

 

 

Vertical Separation ft (m)

 

 

 

 

Connection

Diam.

 

 

 

 

 

 

 

 

 

 

 

0---5

6---10

11---20

21---30

31---40

41---50

51---60

61---70

 

71---80

 

 

w/ TXV

(0---1.5)

(1.8---3.0)

(3.4---6.1)

(6.4---9.1)

(9.4---12.2)

(12.5---15.2)

(15.5---18.3)

(18.6---21.3)

 

(21.6---24.4)

18000

 

1/4

150

150

125

100

100

75

--- ---

--- ---

 

--- ---

AC with

3/8

5/16

250*

250*

250*

250*

250*

250*

250*

225*

 

150

Puron

 

 

 

 

 

 

 

 

 

 

 

 

 

3/8

250*

250*

250*

250*

250*

250*

250*

250*

 

250*

 

 

 

24000

 

1/4

75

75

75

50

50

--- ---

--- ---

--- ---

 

--- ---

AC with

3/8

5/16

250*

250*

250*

250*

250*

225*

175

125

 

100

Puron

 

3/8

250*

250*

250*

250*

250*

250*

250*

250*

 

250*

 

 

 

30000

 

1/4

30

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

 

--- ---

AC with

3/8

5/16

175

225*

200

175

125

100

75

--- ---

 

--- ---

Puron

 

3/8

250*

250*

250*

250*

250*

250*

250*

250*

 

250*

 

 

 

36000

 

5/16

175

150

150

100

100

100

75

--- ---

 

--- ---

AC with

3/8

 

 

 

 

 

 

 

 

 

 

 

 

3//8

250*

250*

250*

250*

250*

250*

250*

250*

 

250*

Puron

 

 

42000

 

5/16

125

100

100

75

75

50

--- ---

--- ---

 

--- ---

AC with

3/8

 

 

 

 

 

 

 

 

 

 

 

 

3/8

250*

250*

250*

250*

250*

250*

250*

250*

 

150

Puron

 

 

48000

 

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

250*

250*

250*

250*

250*

230

160

 

--- ---

Puron

 

 

 

 

 

 

 

 

 

 

 

 

49000

 

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

250*

250*

250*

250*

250*

230

160

 

--- ---

Puron

 

 

 

 

 

 

 

 

 

 

 

 

60000

 

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

250*

250*

225*

190

150

110

--- ---

 

--- ---

Puron

 

 

 

 

 

 

 

 

 

 

 

 

61000

 

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

250*

250*

225*

190

150

110

--- ---

 

--- ---

Puron

 

 

 

 

 

 

 

 

 

 

 

 

* Maximum actual length not to exceed 200 ft (61 m)

{Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.

------ = outside acceptable range

Maximum Total Equivalent Length

Outdoor Unit ABOVE Indoor Unit

 

 

Liquid

 

AC with Puron Refrigerant Maximum Total Equivalent Length{: Outdoor unit ABOVE Indoor

Size

Liquid Line

Line

 

 

 

 

Vertical Separation ft (m)

 

 

 

Connection

Diam.

 

 

 

 

 

 

 

 

 

 

25

 

26---50

51---75

76---100

101---125

126---150

151---175

176---200

 

 

w/ TXV

(7.6)

 

(7.9---15.2)

(15.5---22.9)

(23.2---30.5)

(30.8---38.1)

(38.4---45.7)

(46.0---53.3)

(53.6---61.0)

18000

 

1/4

175

 

250*

250*

250*

250*

250*

250*

250*

AC with

3/8

5/16

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

 

 

 

24000

 

1/4

100

 

125

175

200

225*

250*

250*

250*

AC with

3/8

5/16

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

 

 

 

30000

 

1/4

30

 

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

AC with

3/8

5/16

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

 

 

 

 

 

 

 

 

 

 

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

 

 

 

36000

3/8

5/16

225*

 

250*

250*

250*

250*

250*

250*

250*

AC with

 

 

 

 

 

 

 

 

 

 

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

42000

 

5/16

175

 

200

250*

250*

250*

250*

250*

250*

AC with

3/8

 

 

 

 

 

 

 

 

 

 

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

48000

3/8

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

AC with

 

Puron

 

 

 

 

 

 

 

 

 

 

 

49000

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

 

 

 

 

 

 

 

 

 

60000

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

 

 

 

 

 

 

 

 

 

61000

 

 

 

 

 

 

 

 

 

 

 

AC with

3/8

3/8

250*

 

250*

250*

250*

250*

250*

250*

250*

Puron

 

 

 

 

 

 

 

 

 

 

 

* Maximum actual length not to exceed 200 ft (61 m)

{Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.

------ = outside acceptable range

116B

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Bryant 116B manual Refrigerant Piping Length Limitations, Vertical Separation ft m
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