Daikin RXYTQ10U7YF [90/152] Piping installation

Daikin RXYTQ10U7YF [90/152] Piping installation
18 | Piping installation
Installer and user reference guide
90
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1A – 2020.10
R=[(X
1
ר22.2)×0.37+(X
2
ר19.1)×0.26+(X
3
ר15.9)×0.18+
(X
4
ר12.7)×0.12+(X
5
ר9.5)×0.059+(X
6
ר6.4)×0.022]+A
R Additional refrigerant to be charged [in kg and rounded off to 1 decimal place]
X
1...6
Total length [m] of liquid piping size at Øa
A Parameter A
Parameter A
(a)
Piping length
(b)
CR A
8HP 10+12HP 14+16HP
≤30m 50%≤CR≤105% 0kg 1kg
105%<CR≤130% 0.5kg 1.5kg
>30m 50%≤CR≤70% 0kg 1kg
70%<CR≤85% 0.3kg 0.5kg 1.5kg
85%<CR≤105% 0.7kg 1kg 2kg
105%<CR≤130% 1.2kg 1.5kg
(a) In case of a multi-outdoor-unit system, add the sum of the individual outdoor unit
charge factors.
(b) Piping length is considered the distance from the outdoor unit to the farthest indoor
unit
CR Total indoor unit capacity connection ratio
Metric piping. When using metric piping, replace the weight factors in the formula
by the ones from the following table:
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.
Indoor units Total CR
(a)
VRVDX 50~130%
(a)
Total CR = Total indoor unit capacity connection ratio

Содержание

Похожие устройства

Скачать