En-2
Tool name
Contents of change
Gauge manifold
Pressure is huge and cannot be measured with a
conventional (R22) gauge. To prevent erroneous mixing
of other refrigerants, the diameter of each port has been
changed.
It is recommended to use a gauge manifold with a high
pressure display range –0.1 to 5.3 MPa and a low pressure
display range –0.1 to 3.8 MPa.
Charging hose
To increase pressure resistance, the hose material and base
size were changed.
Vacuum pump
A conventional (R22) vacuum pump can be used by installing
a vacuum pump adapter.
Be sure that the pump oil does not backflow into the system.
Use one capable for vacuum suction of –100.7 kPa (5 Torr,
–755 mmHg).
Gas leakage detector
Special gas leakage detector for HFC refrigerant R410A.
2.3. Accessories
WARNING
For installation purposes, be sure to use the parts supplied by the manufacturer or
other prescribed parts.
The use of non-prescribed parts can cause serious accidents such as the unit to fall,
water leakage, electric shock, or fi re.
The following installation parts are furnished. Use them as required.
Keep the Installation Manual in a safe place and do not discard any other accessories
until the installation work has been completed.
Do not discard any accessories needed for installation until the installation work has
been completed.
Name and Shape
Q’ty
Application
Operating manual
1
Installation manual
1
(This book)
Installation template
1
For positioning the indoor unit
Washer
8
For installing indoor unit
Coupler heat insulation (Large)
1
For indoor side pipe joint (Large pipe)
Coupler heat insulation (Small)
1
For indoor side pipe joint (Small pipe)
Cable tie (Medium)
2
For transmission and remote controller
cable binding
Name and Shape
Q’ty
Application
Cable tie (Large)
4
For fixing the coupler heat insulation.
Filter (Small)
2
(AR007/009/
012/014/
024)
Filter (Big)
2
(AR018)
1
(AR024)
Drain hose
1
For installing drain pipe VP25
(O.D.32, I.D.25)
Hose band
1
For installing drain hose
Drain hose insulation B
1
Insulates the drain hose
2.4. Optional parts
Description
Model
Application
IR receiver unit
UTY-TRHX
For the wireless remote controller.
Remote sensor
UTY-XSZX
Room temperature sensor
External connect kit
UTY-XWZXZC
For output function
(Output terminal / CNB01)
UTY-XWZXZB
For control input function
(Apply voltage terminal / CNA01)
UTY-XWZXZD
For control input function
(Dry contact terminal / CNA02)
UTY-XWZXZ7
For forced thermostat off function (Apply
voltage terminal / CNA03)
UTY-XWZXZE
For forced thermostat off function (Dry
contact terminal / CNA04)
Auto louver grille
UTD-GXS*-W
UTD-GXT*-W
For Auto louver grille
Wireless LAN adapter
UTY-TFSXZ*
For wireless LAN control.
External power supply
unit
UTZ-GXXA
Supply power to the indoor unit PCB when
the indoor unit is turned off to prevent errors.
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2/15/2019 5:45:53 PM
2/15/2019 5:45:53 PM
