Daikin Sky Air Advance Series - Refrigerant Piping Insulation; Electrical Wiring Preparation

7 Charging refrigerant
Installation manual
12
RZASG100~140MUV/Y
Sky Air Advance-series
4P734658-1 – 2023.08
b Power supply cable
c Earth leakage circuit breaker
d Fuse
e User interface
Example: RZASG100~140MUV
c
ef
b g
d
d
a
2×
a Switch box
b Stop valve attachment plate
c Terminal block
d Earth wire
e Power supply cable
f Interconnection cable
g Tie wrap
3 Fix the cables (power supply and interconnection cable) with a
cable tie to the stop valve attachment plate and route the wiring
according to the illustration above.
4 Choose a knockout hole and remove the knockout hole by
tapping on the attachment points with a flat head screwdriver
and a hammer.
5 Route the wiring through the frame and connect the wiring to
the frame at the knockout hole.
Routing through
the frame
Choose one of the 3 possibilities:
a
b
a
b
a
b
2
3
1
a Power supply cable
b Interconnection cable
Connecting to the
frame
When cables are routed from the unit, a
protection sleeve for the conduits (PG
insertions) can be inserted at the knockout
hole.
When you do not use a wire conduit,
protect the wires with vinyl tubes to
prevent the edge of the knockout hole from
cutting the wires.
a b
A B
c d e
A Inside of the outdoor unit
B Outside of the outdoor unit
a Wire
b Bush
c Nut
d Frame
e Hose
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing and underlying piping.
▪ After making the knockout holes, we recommend to
remove the burrs and paint the edges and areas
around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout
holes, wrap the wiring with protective tape to prevent
damage.
6 Reattach the service cover.
7 Connect an earth leakage circuit breaker and fuse to the power
supply line.
7 Charging refrigerant
7.1 About charging refrigerant
The outdoor unit is factory charged with refrigerant, but in some
cases the following might be necessary:
What When
Charging additional refrigerant When the total liquid piping
length is more than specified
(see later).
Completely recharging refrigerant Example:
▪ When relocating the system.
▪ After a leak.
Charging additional refrigerant
Before charging additional refrigerant, make sure the outdoor unit's
external refrigerant piping is checked (leak test, vacuum drying).
INFORMATION
Depending on the units and/or the installation conditions, it
might be necessary to connect electrical wiring before you
can charge refrigerant.
Typical workflow – Charging additional refrigerant typically consists
of the following stages: