Daikin VRV IV+ RYYQ8U7Y1B Series Installer And User Manual page 115

RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11
Model
RYYQ28/RXYQ28
RYYQ30/RXYQ30
RYYQ32/RXYQ32
RYYQ34/RXYQ34
RYYQ36/RXYQ36
RYYQ38/RXYQ38
RYYQ40/RXYQ40
RYYQ42/RXYQ42
RYYQ44/RXYQ44
RYYQ46/RXYQ46
RYYQ48/RXYQ48
RYYQ50/RXYQ50
RYYQ52/RXYQ52
RYYQ54/RXYQ54
For all models:
▪ Phase and frequency: 3N~ 50 Hz
▪ Voltage: 380~415 V
▪ Transmission line section: 0.75~1.25 mm
transmission wiring exceeds these limits, it may result in communication error.
For non-standard combinations
Calculate the recommended fuse capacity.
Formula Calculate, by adding the minimum circuit amps of each used unit
(according to the table above), multiply the result by 1.1 and
select the next higher recommended fuse capacity.
Example Combining the RXYQ30 by using the RXYQ8, RXYQ10, and RXYQ12.
▪ Minimum circuit ampacity of the RXYQ8=16.1 A
▪ Minimum circuit ampacity of the RXYQ10=22.0 A
▪ Minimum circuit ampacity of the RXYQ12=24.0 A
Accordingly, the minimum circuit ampacity of the
RXYQ30=16.1+22.0+24.0=62.1 A
Multiply the above result by 1.1: (62.1 A×1.1)=68.3 A, so the
recommended fuse capacity would be 80 A.
NOTICE
When using residual current operated circuit breakers, be sure to use a high-speed
type 300 mA rated residual operating current.
18 Electrical installation
|
Minimum circuit Recommended
ampacity
55.0 A
59.0 A
62.0 A
66.0 A
70.0 A
76.0 A
81.0 A
84.0 A
86.0 A
89.0 A
93.0 A
97.0 A
101.0 A
105.0 A
2
, maximum length is 1000 m. If the total
Installer and user reference guide
fuses
63 A
80 A
80 A
80 A
80 A
100 A
100 A
100 A
100 A
100 A
125 A
125 A
125 A
125 A
115