Technical data
Precision Air Conditioning
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V
Precision Air Conditioning
Technical Manual : 6258867 F 07/2012
45
Design Data - Air Cooled Models
REFRIGERANT PIPE
SIZING GUIDE
Pipe lengths calculated for Indoor unit with standard Outdoor unit match. For Outdoor unit
connections sizes, please refer to relevant Installation Manual.
REFRIGERANT PIPEWORK SIZING GUIDE
Indoor Unit Connection Sizes Equivalent Pipe Lengths with R407C
Equivalent
Liquid
Suction
Discharge
Indoor Outdoor
Liquid
Suction
Discharge
Length
A & X Models
A Models
X Models
V9A CUS3
0-15m
3/8”
3/4”
5/8”
V9X C11
1/2”
3/4”
1/2”
15-40m
1/2”
7/8”
5/8”
V13A CUS4
0-15m
1/2”
7/8”
5/8”
V13X C15
1/2”
7/8”
1/2”
15-40m
5/8”
1 1/8”
3/4”
V16A CUS5
0-15m
1/2”
7/8”
5/8”
V16X C20
1/2”
7/8”
5/8”
15-40m
5/8”
1 1/8”
3/4”
V19A CUS6
0-15m
1/2”
7/8”
3/4”
V19X C25
5/8”
7/8”
3/4”
15-40m
5/8”
1 1/8”
7/8”
V23A CUS7.5
0-15m
5/8”
1 1/8”
3/4”
V23X C35
5/8”
1 1/8”
3/4”
15-40m
3/4”
1 3/8”
7/8”
V25A CUS8.5
0-15m
5/8”
1 1/8”
7/8”
V25X C45
5/8”
1 1/8”
7/8”
15-40m
3/4”
1 3/8”
1 1/8”
V23AD CUS4 x 2
0-15m
1/2”
7/8”
5/8”
V23XD C15 x 2
1/2”
7/8”
1/2”
15-40m
5/8”
1 1/8”
3/4”
V31AD CUS5 x 2
0-15m
1/2”
7/8”
5/8”
V31XD C20 x 2
1/2”
7/8”
5/8”
15-40m
5/8”
1 1/8”
3/4”
V35AD CUS5.5 x 2
0-15m
1/2”
7/8”
5/8”
V35XD C25 x 2
1/2”
7/8”
5/8”
15-40m
5/8”
1 1/8”
3/4”
V41AD CUS6 x 2
0-15m
1/2”
7/8”
3/4”
V41XD C25 x 2
5/8”
7/8”
3/4”
15-40m
5/8”
1 1/8”
7/8”
V45AD CUS6.5 x 2
0-15m
5/8”
1 1/8”
3/4”
V45XD C35 x 2
5/8”
1 1/8”
3/4”
15-40m
3/4”
1 3/8”
7/8”
V50AD CUS7.5 x 2
0-15m
5/8”
1 1/8”
3/4”
V50XD C35 x 2
5/8”
1 1/8”
3/4”
15-40m
3/4”
1 3/8”
7/8”
V55AD CUS8.5 x 2
0-15m
5/8”
1 1/8”
7/8"
V55XD C35 x 2
5/8”
1 1/8”
3/4”
15-40m
3/4”
1 3/8”
1 1/8"
V65AD CUS10 x 2
0-15m
5/8”
1 1/8”
7/8”
V65XD C45 x 2
5/8”
1 1/8”
3/4”
15-40m
3/4”
1 3/8”
1 1/8”
V80AD CUS12 x 2
0-15m
5/8”
1 3/8”
7/8”
V80XD C45 x 2
7/8”
1 1/8”
7/8”
15-40m
3/4”
1 5/8”
1 1/8”
V90AD CUS30D
0-15m
5/8”
1 3/8”
1 1/8”
V90XD CS50 x 2
7/8”
1 3/8”
1 1/8”
15-40m
7/8"
1 5/8"
1 3/8"
AIR COOLED