Connecting The Refrigerant Piping; About Connecting The Refrigerant Piping; Guidelines When Connecting The Refrigerant Piping; Pipe Bending Guidelines - Daikin FTXP20L2V1B Manual De Instalación

Model Button
FTXP-L and ATXP-L
FTXF-A
6 Select:
Model Symbol
FTXP-L and ATXP-L
FTXF-A
7 Press:
Model Button
FTXP-L and ATXP-L
FTXF-A
ON/OFF
a Operation lamp
b Indoor unit ON/OFF switch
8 Press the indoor unit ON/OFF switch while the operation lamp
is blinking.
Jumper Address
Factory setting 1
After cutting with nippers 2
INFORMATION
If the setting could NOT be completed while the operation
lamp was blinking, repeat the setting process from the
beginning.
9 When the setting is complete, press:
Model Button
FTXP-L and ATXP-L
Keep
5 seconds.
FTXF-A
Result: The user interface will return to the previous screen.
5.3

Connecting the refrigerant piping

DANGER: RISK OF BURNING
5.3.1

About connecting the refrigerant piping

Before connecting the refrigerant piping
Make sure the outdoor and indoor unit are mounted.
Typical workflow
Connecting the refrigerant piping involves:
▪ Connecting the refrigerant piping to the indoor unit
▪ Connecting the refrigerant piping to the outdoor unit
▪ Insulating the refrigerant piping
(A)(F)TXP20~35L2V1B + FTXF20~71A2V1B
Daikin room air conditioner
3P512025-1 – 2017.11
a
b
pressed for about
▪ Keeping in mind the guidelines for:
▪ Pipe bending
▪ Flaring pipe ends
▪ Using the stop valves
5.3.2 Guidelines when connecting the
refrigerant piping
Take the following guidelines into account when connecting pipes:
▪ Coat the flare inner surface with ether oil or ester oil when
connecting a flare nut. Tighten 3 or 4 turns by hand, before
tightening firmly.
▪ ALWAYS use 2 wrenches together when loosening a flare nut.
▪ ALWAYS use a spanner and torque wrench together to tighten the
flare nut when connecting the piping. This to prevent nut cracking
and leaks.
a b
c
d
a Torque wrench
b Spanner
c Piping union
d Flare nut
Piping size Tightening
(mm) torque (N•m)
Ø6.4 15~17
Ø9.5 33~39
Ø12.7 50~60
Ø15.9 63~75
5.3.3

Pipe bending guidelines

Use a pipe bender for bending. All pipe bends should be as gentle
as possible (bending radius should be 30~40 mm or larger).
5.3.4 To connect the refrigerant piping to the
indoor unit
▪ Pipe length. Keep refrigerant piping as short as possible.
▪ Flare connections. Connect refrigerant piping to the unit using
flare connections.
▪ Insulation. Insulate the refrigerant piping, interconnection cable
and drain hose on the indoor unit as follows:
c
d
a
e
b
f
g
a Gas pipe
b Gas pipe insulation
c Interconnection cable
d Liquid pipe
e Liquid pipe insulation
f Finishing tape
g Drain hose
5 Installation
Flare Flare shape
dimensions (A) (mm)
(mm)
90° ±2
8.7~9.1
A
12.8~13.2
16.2~16.6
R=0.4~0.8
19.3~19.7
Installation manual
13