Electrical Installation; Specifications Of Standard Wiring Components - Daikin FXFN71A2VEB Installation And Operation Manual

WARNING
▪ Use K65 piping for high-pressure applications with a
working pressure of 120 bar or 90 bar, depending on its
location in the system.
▪ Use K65 unions and fittings approved for a working
pressure of 120 bar or 90 bar, depending on its location
in the system.
▪ ONLY brazing is allowed for connection of pipes. No
other types of connections are allowed.
▪ Expanding of pipes is NOT allowed.
1 Insert the field pipe into the piping on the indoor unit side.
2 Connect refrigerant piping to the unit using only brazed
connections.
NOTICE
When brazing, cover the plastic hold plate (d) and thermal
insulation (e) by a wet cloth and make sure the
temperature does not exceed 200°C.
a b
a Field piping
b Brazed connection
c Piping on the indoor unit side
d Plastic hold plate
e Insulation attached on the unit
3 Insulate the refrigerant piping on the indoor unit as follows:
A B A
a b c
1 3
A Liquid piping
B Gas piping
a Insulation material (field supply)
b Tie wraps (accessory)
c Insulation pieces: Large (gas pipe), small (liquid pipe)
(accessory)
FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
3P672850-1B – 2022.01
c d e
B
d b e f a b c d b e f
3 2
2 1
g g
4 4

14 Electrical installation

d Brazed connection
e Refrigerant pipe connection (attached to the unit)
f Unit
g Sealing pads: Medium 1 (gas pipe), medium 2 (liquid
pipe) (accessories)
1 Turn up the seams of the insulation pieces.
2 Attach to the base of the unit.
3 Tighten the tie wrap on the insulation pieces.
4 Wrap the sealing pad from the base of the unit to the top
of the brazed connection.
NOTICE
Make sure to insulate all refrigerant piping. Any exposed
piping might cause condensation.
14 Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provide full
disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
NOTICE
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
14.1 Specifications of standard wiring
components
Component
(a)
Power MCA 0.3 A
supply cable
Voltage
Phase
Frequency
Wire sizes
Transmission wiring
User interface cable
indoor↔outdoor - maximum 1000 m (total
indoor↔user interface - maximum 500 m
Recommended field fuse
Residual current circuit Must comply with applicable legislation
breaker
(a)
MCA=Minimum circuit ampacity. Stated values are maximum
values (see electrical data of combination with indoor units for
exact values).
Class
50 71 112
0.6 A 1.2 A
220~240 V
1~
50/60 Hz
2
2.5 mm (3‑core wire)
H07RN-F (60245 IEC 66)
0.75 to 1.25 mm² (2‑core wire)
H05RN-F (60245 IEC 57)
wiring length 2000 m)
6 A
Installation and operation manual
19