Daikin EKHBRD-AY1, Руководство по установке

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EKHBRD011~Y1
Indoor unit for air to water heat pump system
4PW54465-1C
Installation manual
10
3 Fix the front and remaining side decoration panel(s) back to
the unit using the appropriate screws.
4 Stick the top plate insulation (accessory) at the inside of the
top decoration panel according to the figure below.
5 Fix the top decoration panel on top of the unit using the
appropriate screws. In case a domestic hot water tank
(optional) is installed, refer to the domestic hot water tank
installation manual.
P
IPING CONNECTION WORK
Refrigerant piping work
For all guidelines, instructions and specifications regarding
refrigerant piping work between the indoor unit and the outdoor unit,
please refer to the outdoor unit installation manual.
4 refrigerant pipes are delivered with the unit to make the refrigerant
connections inside the unit. Refer to the instructions mentioned on
the top plate of the unit.
■
In case of right connection, only 2 pipes are required.
■
In case of left connection, the 4 pipes are required.
Guidelines for flare connection
■
Flares should not be re-used. New ones should be made in
order to prevent leaks.
■
Use a pipe cutter and flare tool suitable for the refrigerant used.
■
Only use the annealed flare nuts included with the unit. Using
different flare nuts may cause the refrigerant to leak.
■
Please refer to the table for flaring dimensions and tightening
torques (too much tightening will result in splitting the flare).
■
When connecting the flare nut, coat the flare inner surface with
ether oil or ester oil and initially tighten 3 or 4 turns by hand
before tightening firmly.
2x
5 mm
1 2
3 4
2x
Do not braze the piping connections inside the unit.
1 Self-tapping screws
Please apply sufficient force to drive the screw into the
sheetmetal!
Piping size
(mm)
Tightening
torque (N•m)
Flare dimensions A
(mm)
Flare shape
(mm)
Ø9.5 33~39 12.8~13.2
Ø15.9 63~75 19.4~19.7
150 mm
75 mm
1 1
R=0.4~0.8
45
±
2
90
±
2
A