Mitsubishi Electric SLH Series Technical & Service Manual page 41

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE
Models
Indoor unit
SLH-1AR.TH, SLH-1AR .TH
1
SL-1AR.TH
SL-1AR.TH-T
SLH-1.6AR.TH, SLH-1.6AR .TH
1
SL-1.6AR.TH
SL-1.6AR.TH-T
SLH-2AR.TH, SLH-2AR .TH
1
SL-2AR.TH
SL-2AR.TH-T
wIt does not matter which unit is higher.
ADDITIONAL REFRIGERANT CHARGE (R-22 : g)
If pipe length exceeds 7m, additional refrigerant (Freon 22) charge is required
Models
Indoor unit
SLH-1AR.TH, SLH-1AR .TH SUH-1VR.TH
1
SLH-1.6AR.TH, SLH-1.6AR .TH SUH-1.6VR2.TH
1
SLH-2AR.TH, SLH-2AR .TH SUH-2VR
1
SL-1AR.TH, SL-1AR.TH-T SU-1VR.TH, SU-1VR.TH-T
SL-1.6AR.TH, SL-1.6AR.TH-T SU-1.6VR2.TH, SU-1.6VR2.TH-T
SL-2AR.TH, SL-2AR.TH-T SU-2VR
Calculation : (SLH-1AR)og=25g/mo(Refrigerant piping length minus 7m)
(SLH-1.6/2AR)og=50g/mo(Refrigerant piping length minus 7m)
(SL-1/1.6/2AR)og=15g/mo(Refrigerant piping length minus 7m)
Outdoor unit
SUH-1VR.TH
SU-1VR.TH
SU-1VR.TH-T
SUH-1.6VR2.TH
SU-1.6VR2.TH
SU-1.6VR2.TH-T
SUH-2VR .TH, SUH-2VR .TH
1 2
SU-2VR .TH
1
SU-2VR .TH-T
1
Outdoor unit
precharged
Outdoor unit
(up to 7m)
800
1,400
.TH, SUH-2VR .TH 1,800
1 2
800
900
.TH, SU-2VR .TH-T 1,600
1 1
Length : m(ft)
A
{9.52(3/8)
20(66)
{12.7(1/2)
{15.88(5/8)
A: Refrigerant piping
Max.length
20m(66ft)
Refrigerant piping length (one way)
7m 8m 9m 10m 11m 12m 13m 14m 15m 16m 17m 18m 19m 20m
0 25 50 75 100
0 50 100 150 200
0 15 30 45 60
41
Piping size O.D. : mm (in.)
Gas
{6.35(1/4)
125 150 175 200 225 250
250 300 350 400 450 500
75 90 105 120 135 150
Liquid
(g)
275 300 325
550 600 650
165 180 195