Daikin FDMQ-R Series User Manual

FTX-N/U, FVXS-N, FDMQ-R Series EDUS091558E
117
3P500432-1
• The refrigerant is pre-charged in the outdoor unit.
Torque wrench
Piping union
Flare nut
Spanner
Tighten
Fig. 9
Do not apply refrigeration
oil to the outer surface.
Flare nut
Apply refrigeration
oil only to the inner
surface of the flare.
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
Apply oil
Fig. 10
CAUTION
Donothaveoiladheretothescrewxingpartofresin
parts.
If oil adheres, it may weaken the strength of screwed part.
Donottightenarenutstootight.
If a flare nut cracks, the refrigerant may leak.
Insulationofeldpipingmustbecarriedoutuptothe
connection inside the casing.
If the piping is exposed to the atmosphere, it may cause
sweating, burn due to touching the piping, electric shock or a
re due to the wiring touching the piping.
•
After leak test, referring to Fig. 11, insulate both the gas and
liquid piping connection with the attached tting insulation
(4) and (5) to prevent the pipings from getting exposed.
Then, tighten both the ends of insulating material with the clamp (8).
• Wrap the sealing pad (Medium) (7) around the tting insulation
(4) and (5) (flare nut section), both the gas and liquid piping.
• Make sure to bring the seam of tting insulation (4) and (5)
to the top.
Gas piping
Liquid piping
Fitting
insulation (4)
Liquid Piping Insulation Procedure
Unit
Unit
Clamp (8)
Clamp (8)
Piping
insulating
material
(eld supply)
Gas Piping Insulation Procedure
Fitting
insulation (5)
Piping insulating
material (unit)
Bring the
seam
to the top.
Flare nut
connection
Piping
insulating
material
(eld supply)
Do not leave
clearance.
Flare nut
connection
Bring the
seam
to the top.
Do not leave
clearance.
Piping insulating
material (unit)
Wind around the
piping until top of the
flare nut connection,
beginning at the base.
Do not expose the
piping in order to
prevent the vapor
condensation.
Tighten the portion
where overlapped by
the piping insulating
material.
Tighten the portion
where overlapped by
the piping insulating
material.
Do not expose the
piping in order to
prevent the vapor
condensation.
Wind around the
piping, beginning
at the base.
Sealing pad
(Medium) (7)
Sealing pad
(Medium) (7)
Fig. 11
NOTE
1. In case of refrigerant shortage due to forgetting additional
refrigerant charge etc., it will result in malfunc tion such as
does not cool or does not heat.
Refer to the outdoor unit installation manual or technical
document for refrigerant piping.
8
01_EN_3P500432-1.indd 8 10/24/2017 18:32:33

Daikin FDMQ-R Series Specifications

General

Brand	Daikin
Model	FDMQ-R Series
Category	Air Conditioner
Language	English