Daikin FXHQ100MAVE Manual de Instalação descarregar pdf (Página 7)

English 5

(4) Use the following procedure to mount the remote con-

troller (optional accessory) on the unit is so desired.

(FXLQ type only)

• Open the left side lid of control panel and mount the lower

case on the remote controller.

NOTE

See the accessory instruction

procedure for instructions on

screw fastening and wiring for the

remote controller.

CAUTION

Setting the unit at an angle opposite to the drain piping might

cause leaks.

6. REFRIGERANT PIPING WORK

〈For refrigerant piping of outdoor units, see the installation

manual attached to the outdoor unit.〉

〈Execute heat insulation work completely on both sides of

the gas piping and the liquid piping. Otherwise, a water

leakage can result sometimes.〉

(When using a heat pump, the temperature of the gas piping

can reach up to approximately 120°C, so use insulation which is

sufficiently resistant.)

〈Also, in cases where the temperature and humidity of the

refrigerant piping sections might exceed 30°C or RH80%,

reinforce the refrigerant insulation. (20 mm or thicker) Con-

densation may form on the surface of the insulating mate-

rial.〉

〈Before refrigerant piping work, check which type of refrig-

erant is used. Proper operation is not possible if the types

of refrigerant are not the same.〉

CAUTION

• Use a pipe cutter and flare suitable for the type of

refrigerant.

• Apply ester oil or ether oil around the flare portions

before connecting.

• To prevent dust, moisture or other foreign matter

from infiltrating the tube, either pinch the end or

cover it with tape.

• Do not allow anything other than the designated

refrigerant to get mixed into the refrigerant circuit,

such as air, etc. If any refrigerant gas leaks while

working on the unit, ventilate the room thoroughly

right away.

• Do not allow air, etc., to become mixed with the specified

refrigerant inside the refrigeration cycle.

• The outdoor unit is charged with refrigerant.

• Be sure to use both a spanner and torque wrench together,

as shown in the drawing, when connecting or disconnecting

pipes to/from the unit.

• To prevent flare nut cracking and gas leaks, be sure to use

both a spanner and torque wrench together, as shown in the

drawing, when connecting or disconnecting pipes to / from

the unit.

• Refer to Table 2 for the dimensions of flare nut spaces.

• When connecting the flare nut, coat the flare section (both

inside and outside) with ester oil or ether oil, rotate three or

four times first, then screw in.

• Refer to the Table 2 for tightening torque.

• Wrap only the gas line side with the sealing pad (5). Bend the

pad over the insulation for fitting (union) from above.

• After inspecting pipe joints for gas leakage, be sure to insu-

late with the accessory joint insulation for fitting (3) (4) while

referring to the figure on the next page. (Fasten both ends

with clamps (6))

CAUTION

Setting the unit at an angle opposite to the drain piping

might cause leaks.

Use “ Table 3 ” as a reference if a torque wrench is not available.

Once work is complete, make sure there is no gas leaking. As

the flare nut is tightened with the wrench, the torque will sud-

denly increase. From that position, tighten the nut to the angle

shown on “ Table 3 ”.

• Make absolutely sure to execute heat insulation works on the

pipe-connecting section after checking gas leakage by thor-

oughly studying the following figure and using the attached

heat insulating materials for fitting (3) and (4). (Fasten both

ends with the clamps (6) (accessory).) (Refer to Fig. 1)

• Wrap the sealing pad (5) (accessory) only around the insula-

tion for the joints on the gas piping side.

CAUTION

Be sure to insulate any field piping all the way to the piping

connection inside the unit. Any exposed piping may cause

condensation or burns if touched.

Installation

screw

Lower case

of remote

control

Lid of control

panel

Ester oil or ether oil.

Torque wrench

Spanner

Piping union

Flare nut

Insulation for fitting

(accessory) (4)

(For liquid pipes)

Clamp (6)

(4 accessory)

Insulation for fitting

(accessory) (3)

(For gas pipes)

Sealing pad (accessory) (5)

(Wrapped over union)

Gas pipe

Liquid pipe

Fig. 1

01_EN_3P086154-2P.fm Page 5 Tuesday, March 31, 2009 5:26 PM

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