Daikin REYQ14T7Y1B - 5 Installation; 5.1 Opening the units; 5.1.1 To open the outdoor unit; 5.1.2 To open the electrical component box of the outdoor unit

5 Installation
Installation and operation manual
10
REYQ8~20+REMQ5T7Y1B
VRV IV system air conditioner
4P353996-1E – 2018.04
Non-continuous heating
Model Minimum
circuit
ampacity
Recommended
fuses
REYQ12 24.0A 32A
REYQ14 27.0A 32A
REYQ16 31.0A 40A
REYQ18 35.0A 40A
REYQ20 39.0A 50A
For all models:
▪ Phase and frequency: 3N~50Hz
▪ Voltage: 380~415V
▪ Transmission line section: 0.75~1.25 mm
2
, maximum length is
1000 m. If the total 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 REYQ30 by using the REYQ8,
REYQ10, and REYQ12.
▪ Minimum circuit ampacity of the REYQ8=16.1A
▪ Minimum circuit ampacity of the REYQ10=22.0A
▪ Minimum circuit ampacity of the REYQ12=24.0A
Accordingly, the minimum circuit ampacity of the
REYQ30=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.
5 Installation
5.1 Opening the units
5.1.1 To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
To gain access to the unit, front plates need to be opened as follows:
14×14×
5~12 HP 14~20 HP
Once the front plates open, the electrical component box can be
accessed. See "5.1.2 To open the electrical component box of the
outdoor unit"on page10.
For service purposes, the pushbuttons on the main PCB need to be
accessed. To access these pushbuttons, the electrical component
box cover does not need to be opened. See "6.1.3 To access the
field setting components"on page23.
5.1.2 To open the electrical component box of
the outdoor unit
NOTICE
Do NOT apply excessive force when opening the
electronic component box cover. Excessive force can
deform the cover, resulting in entering of water to cause
equipment failure.
5~12 HP
2×
SW8
14~20 HP
6×
SW8