EMRQ8~16ABY1
Daikin Altherma outdoor unit
4P501819-1 – 2017.08
Installation manual
22
See the table below for the tightening torque of the transmission
wiring terminals.
■
Never connect the power supply to transmission wiring terminal
block. Otherwise the entire system may break down.
■
Be careful about polarity of the transmission wiring.
2.2
Power supply
The power supply must be clamped to the plastic bracket using field
supplied clamp material.
The green and yellow striped wire must be used for earthing only.
(refer figure below)
13. C
HARGING
REFRIGERANT
13.1. Precautions
■
To avoid compressor breakdown. Do not charge the refrigerant
more than the specified amount.
■
This outdoor unit is factory charged with refrigerant and
depending on pipe sizes and pipe lengths some systems require
additional charging of refrigerant. See
additional refrigerant charge" on page 23
■
In case re-charge is required, refer to the nameplate of the unit.
It states the type of refrigerant and necessary amount.
Screw size
Tightening torque (N•m)
M3.5 (A1P)
0.80~0.96
1
Power supply (380~415 V, 3N~ 50 Hz)
2
Earth leakage protector
3
Fuse
4
Earth wire
5
Power supply terminal block
6
Connect each power wire
RED to L1, WHT to L2, BLK to L3 and BLU to N
7
Earth wire (GRN/YLW)
8
Clamp the power supply to the plastic bracket using a field
supplied clamp to prevent external force being applied to the
terminal.
9
Clamp (field supply)
10
Cup washer
11
When connecting the earth wire, it is recommended to perform
curling.
12
Electric component box (1)
13
Electric component box (2)
It is not required to open electric component box (2) for
installation.
■
When routing earth wires, secure clearance of 25 mm
or more away from compressor lead wires. Failure to
observe this instruction properly may adversely effect
correct operation of other units connected to the same
earth.
■
When connecting the power supply, the earth
connection must be made before the current-carrying
connections are established. When disconnecting the
power supply, the current-carrying connections must
be separated before the earth connection is. The
length of the conductors between the power supply
stress relief and the terminal block itself must be such
that the current-carrying wires are tautened before the
earth wire is in case the power supply is pulled loose
from the stress relief.
L 1
L 2
L 3
N
1
3
4
2
6
5
7
8
9
10
11
13
12
Precautions when laying power wiring
■
For wiring, use the designated power wire and
connect firmly, then secure to prevent outside
pressure being exerted on the terminal board.
■
Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
■
Over-tightening the terminal screws may break them.
■
See the table below for tightening torque for the
terminal screws.
Recommendations when connecting the earth wire
Wire it so that it comes through the cut out section of the
cup washer. (An improper earth connection may prevent a
good earthing from being achieved.)
ATTENTION
■
Refrigerant cannot be charged until field wiring has
been completed.
■
Refrigerant may only be charged after performing the
leak test and the vacuum drying.
■
When charging a system, care shall be taken that its
maximum permissible charge is never exceeded, in
view of the danger of liquid hammer.
■
Charging with an unsuitable substance may cause
explosions and accidents, so always ensure that the
appropriate refrigerant R410A is charged.
■
Refrigerant containers shall be opened slowly.
■
Always use protective gloves and protect your eyes
when charging refrigerant.
■
When the refrigerant system is to be opened,
refrigerant must be treated according to the applicable
legislation.
DANGER: ELECTRICAL SHOCK
See
"2. General Safety precautions" on page 2
.
Tightening torque (N•m)
M8 (Power terminal block)
5.5~7.3
M8 (Earth)
4PEN501819-1.book Page 22 Wednesday, September 13, 2017 12:52 PM
