Daikin FXMQ-MF, Инженерные данные

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EDUS39-900-F10 Installation
FXMQ-MF 23
Refri g erant Pipin g Work
<For refri g erant pipin g between outdoor unit and this unit, see the installation manual attached to the outdoor
unit. (Refer to Table 1)>
<Execute heat insulation work completely on both sides of the
g as pipe and the liquid pipe. Otherwise, a water
leaka g e can result sometimes.>
<Be sure to use insulation that is desi g ned for use with HVAC Systems.>
<Improve the insulation on the refri g erant pipin g dependin g on the installation environment. If the insulation is
not sufficient, condensate may form on the surface of the insulation.>
<Before refri
g erant pipin g work, check which type of refri g erant is used. Proper operation is not possible if the
types of refri g erant are not the same.>
CAUTION

Use a pipe cutter and flare suitable for the type of refri g erant.

Apply ester oil or ether oil inside the flare portions before connectin g . (Refer to Fi g . 7)

To prevent dust, moisture or other forei g n matter from infiltratin g the tube, either pinch the end or cover it
with tape.

Do not allow anythin g other than the desi g nated refri g erant to g et mixed into the refri g erant circuit, such as
ir, etc. If any refri g erant g as leaks while workin g on the unit, ventilate the room thorou g hly ri g ht away.

TThe outdoor unit is charged w ith refrigerant.

Be sure to use both a spanner and torque w rench together, as sho w n in the dra w ing, w hen connecting or
disconnecting pipes to/from the unit. (Refer to Fi g . 8)

Refer to Table 2 for the dimensions of flare nut spaces.

When connecting the flare nut, coat the flare section inside w ith ester oil or ether oil, rotate three or four times first,
then scre w in. (Refer to Fi g . 7)

Refer to Table 2 for tightening torque.
Note:
Use the flare nuts attached w ith the unit.
CAUTION
Over-tightening may damage the flare and cause a refrigerant leakage.
Table 1
Unit to be connected Gas pipe diameter
Liquid pipe
diameter
φ
5/8
φ
3/8
φ
3/4 Use attached pipe.
FXMQ48MF V JU
FXMQ72MF V JU
FXMQ96MF V JU
φ
7/8 Use attached pipe.
Table 2
Pipe
size
Tightening torque
(ft·lbf)
Flare shape (in.)
φ
3/8” 24.1 – 29.4 0.504 – 0.520
φ
5/8”
45.6 – 55.6 0.760 – 0.776
Flare dimen-
sions
A (in.)
A
45
0
±2
0
90
0
±2
0
R0.016-0.031
Ester oil or ether oil.
Fi g . 7
Torque w rench
Spanner
Piping union
Flare nut
Fi g . 8