Daikin RYYQ8U7Y1B, Installer And User Manual

Page: 99 / 176

17 | Piping installation
Installer and user reference guide
99
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
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 Total CR
(a)
CR per type
(b)
VRV DX RA DX LT Hydrobox AHU
VRV DX 50~130% 50~130% — — —
VRV DX +
RA DX
80~130% 0~130% 0~130% — —
RA DX 80~130% — 80~130% — —
VRV DX + LT
Hydrobox
50~130% 50~130% — 0~80% —
VRV DX +
AHU
50~110% 50~110% — — 0~60%
AHU 90~110% — — — 90~110%
(a)
Total CR = Total indoor unit capacity connection ratio
(b)
CR per type = Allowable capacity connection ratio per indoor unit type