Refrigerant Piping Insulation; Preparing Electrical Wiring; About Preparing Electrical Wiring - Daikin FXFQ20BVEB Installer And User Reference Manual

5.3.2 Refrigerant piping insulation

5.4 Preparing electrical wiring

5.4.1 About preparing electrical wiring

FXFQ20~125BVEB
VRV system air conditioner
4P561452-1B – 2021.07
▪ Use polyethylene foam as insulation material:
- with a heat transfer rate between 0.041 and 0.052 W/mK (0.035 and
0.045 kcal/mh°C)
- with a heat resistance of at least 120°C
▪ Insulation thickness
Ambient temperature
≤30°C
>30°C
INFORMATION
Also read the precautions and requirements in the
4
precautions" [
WARNING
▪
If the power supply has a missing or wrong N-phase, equipment might break
down.
▪
Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber,
or telephone earth. Incomplete earthing may cause electrical shock.
▪
Install the required fuses or circuit breakers.
▪
Secure the electrical wiring with cable ties so that the cables do NOT come in
contact with sharp edges or piping, particularly on the high-pressure side.
▪
Do NOT use taped wires, stranded conductor wires, extension cords, or
connections from a star system. They can cause overheating, electrical shock or
fire.
▪
Do NOT install a phase advancing capacitor, because this unit is equipped with an
inverter. A phase advancing capacitor will reduce performance and may cause
accidents.
WARNING
▪
All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
▪
Make electrical connections to the fixed wiring.
▪
All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
Humidity
75% to 80% RH
≥80% RH
5].
5 Preparation
|
Minimum thickness
15 mm
20 mm
"1 General safety
Installer and user reference guide
23