16
Packaged and Split Rooftop Ventilator
© 2021 Mitsubishi Electric US, Inc.
R410A Piping Design
1- Pipe
Refrigerant pipe for CITY MULTI
®
shall be made of
phosphorus deoxidized copper, and has two types.
• Type-O: Soft copper pipe (annealed copper pipe),
can be easily bent with human’s hands.
• Type-
1
⁄2H pipe: Hard copper pipe (straight pipe),
being stronger than Type-O pipe of the same radial
thickness.
The maximum operation pressure of R410A air
conditioner is 4.30 MPa [624psi]. The refrigerant piping
should ensure the safety under the maximum operation
pressure. Follow the recommended pipe size in the table
below or you shall follow the local industrial standard.
Pipes of radial thickness 0.7mm or less shall not be
used.
Copper Pipe Size and Radial Thickness for
R410A CITY MULTI
®
Size (mm)
O.D.
Size
(in.)
O.D.
**Radial
Thickness
(mm)
**Radial
Thickness
(mils)
*Pipe Type
ø6.35 ø
1
⁄4 0.8 [32] 1 or 2
ø9.52 ø
3
⁄8 0.8 [32] 1 or 2
ø12.7 ø
1
⁄2 0.8 [32] 1 or 2
ø15.88 ø
5
⁄8 1.0 [40] 1 or 2
ø19.05 ø
3
⁄4 1.2 [48] 1 or 2
ø22.2 ø
7
⁄8 1.0 [40] 2
ø25.4 ø1 1.0 [40] 2
ø28.58 ø1
1
⁄8 1.0 [40] 2
ø31.75 ø1
1
⁄4 1.1 [44] 2
ø34.93 ø1
3
⁄8 1.2 [48] 2
ø41.28 ø1
5
⁄8 1.4 [56] 2
*Pipe Type:
1=ACR-Annealed
2=ACR-Drawn Temper
**The gures in the radial thickness column are based on the
Japanese standards and are provided only as a reference. Use
pipes that meet the local standards.
Split DX Piping Installation
Piping Design
Refrigerant Line Sizes
DOAS Unit Refrigerant Line Connections (in.)
MPF-1-**-**-96-1
1
⁄2 liquid 1
1
⁄8 suction
1
MPF-1-**-**-144-1
1
⁄2 liquid 1
1
⁄8 suction
MPF-2-**-**-144-1
1
⁄2 liquid 1
1
⁄8 suction
MPF-2-**-**-192-1
5
⁄8 liquid 1
3
⁄8 suction
2
MPF-2-**-**-240-1
5
⁄8 liquid 1
3
⁄8 suction
2
1
Field supplied 1
1
⁄8” -
7
⁄8” OD coupling may be needed at
DOAS for installation.
2
Field supplied 1
3
⁄8” - 1
1
⁄8” OD coupling will be needed at
DOAS for installation.
Outdoor Unit Model Refrigerant Line
Connections (in.)
DOAS
Model
PUHY-P96T/YKMU
1
⁄2 liquid
7
⁄8
suction
MPF-1
PUHY-P144T/YKMU
1
⁄2 liquid 1
1
⁄8 suction MPF-1
PUHY-P144T/YKMU
1
⁄2 liquid 1
1
⁄8 suction MPF-2
PUHY-P192T/YSKMU
5
⁄8 liquid 1
1
⁄8 suction MPF-2
PUHY-P240T/YSKMU
5
⁄8 liquid 1
1
⁄8 suction MPF-2
PUHY-EP96T/YNU
1
⁄2 liquid
7
⁄8
suction
MPF-1
PUHY-EP144T/YNU
1
⁄2 liquid 1
1
⁄8 suction MPF-1
PUHY-EP144T/YNU
1
⁄2 liquid 1
1
⁄8 suction MPF-2
PUHY-EP192T/Y(S)NU
(twinned model)
5
⁄8 liquid 1
1
⁄8 suction MPF-2
PUHY-EP240T/Y(S)NU
(twinned model)
5
⁄8 liquid 1
1
⁄8 suction MPF-2
TUHYE096(3/4)
AN40A(N/B)
1
⁄2 liquid
7
⁄8
suction
MPF-1
TUHYE144(3/4)
AN40A(N/B)
1
⁄2 liquid 1
1
⁄8 suction MPF-1
TUHYE192(3/4)
BN40A(N/B)
(twinned model)
5
⁄8 liquid 1
1
⁄8 suction MPF-2
TUHYE240(3/4)
BN40A(N/B)
(twinned model)
5
⁄8 liquid 1
1
⁄8 suction MPF-2
To Next Page
Loading...
