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Piping installation
Installer and user reference guide
99
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
Inch piping
Metric piping
Piping
Weight factor
Piping
Weight factor
Ø6.4 mm
0.022
Ø6 mm
0.018
Ø9.5 mm
0.059
Ø10 mm
0.065
Ø12.7 mm
0.12
Ø12 mm
0.097
Ø15.9 mm
0.18
Ø15 mm
0.16
Ø16 mm
0.18
Ø19.1 mm
0.26
Ø18 mm
0.24
Ø22.2 mm
0.37
Ø22 mm
0.35
Connection ratio requirements.
When selecting indoor units, the connection ratio
must comply with the following requirements. For more information, see the
technical engineering data.
Other combinations than those mentioned in the table are not allowed.
Indoor units
Maximum
(a)
Total CR
(b)
CR per type
(c)
Type
CR
VRV DX
64
50~130%
VRV DX
50~130%
VRV DX
without BS unit
(cooling-only)
(d)
0~50%
VRV DX +
Hydrobox
32
50~200%
(e)
VRV DX
50~110%
VRV DX
without BS unit
(cooling-only)
(d)
0~50%
LT + HT
Hydrobox
0~100%
VRV DX + AHU
64
50~110%
VRV DX
50~110%
VRV DX
without BS unit
(cooling-only)
(d)
0~50%
AHU
0~60%
(a)
Maximum number allowed excluding BS units and EKEXV kits
(b)
Total CR = Total indoor unit capacity connection ratio
(c)
CR per type = Allowable capacity connection ratio per indoor unit type
(d)
Cooling-only VRV indoor units cannot be combined with HT Hydrobox units
(e)
The total capacity of VRV DX indoor units and LT Hydrobox units is maximum 130%
Summary of Contents for REMQ5U7Y1B
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