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[ 3 ] [Leak Detector installation]
See Installation Manual included in Leak Detector for information on installing Leak Detector.
The leak detector implements have safety measures to light up in red and to sound a buzzer, that will warn in case
of a refrigerant leak.
For the Leak Detector installation to R32 air conditioning system, check the following before installing.
WARNING
• The Leak Detector detector used as a safety device for the air conditioning system shall be used the speci
fi
ed
Toshiba optional product.
• Leak Detector installation shall be complied with the following requirements.
1, Leak Detector shall be installed in each room that requires a safety measure.
2, The installation position shall be determined by the type and height of the indoor unit and the presence or
the absence of obstacles between the indoor unit and the leak detector.
• Leak Detector shall be installed outside the indoor unit within a height of 300 mm from the
fl
oor.
• Leak Detector shall be located within 10 m horizontal distance in line sight of the unit and on a wall within the
room in which the unit is installed, or 7 m, if not in line sight of the unit, and on a wall within the room in which
the unit is installed. The distance from the unit to Leak Detector shall be measured as the shortest horizontal
unobstructed path between the unit and the nearest Leak Detector.
• The alarm shall always be 15 dB(A) louder than the room background noise.
Leak detector can generate a 65 dB(A) alarm. (Sound pressure level, measured at a distance of 1 m from the
alarm.)
If the surrounding environment is noisy in a particular room, we recommend that you use an external alarm
(by local power supply) in that room.
This leak detector has output terminals to external ventilation and an external alarm.
When taking safety measures using external ventilation or an external alarm, install according to the installation
manual for the leak detector.
[Installation positions of Leak Detectors]
Indoor unit
Indoor unit
h
0
]
2.2
h
0
]
1.8
Leak Detector
[
10 m
پ
[
300 mm
[
300 mm
پ
It must be placed within a horizontal distance of 10 meters and on the wall in the room where the indoor unit is
installed.
However, when it does not enter the
fi
eld of view on a straight line from the Leak Detector, it is within 7 m at the
shortest horizontal distance without obstacles and installed on the wall in the room where the indoor unit is installed.
NOTE
The leak detector generates visual and auditory warnings.
FS : Flow Selector
CODE
No.
[107]
Connection example
Case
[02]
Area (c)
Area (c)
FS-S
FS-S
a
f
f
d
d
b
b
c
c
When installing in a room corresponding to
area (c), set the CODE No. [107] to [01] or [02].
Be sure to install a refrigerant leak detector.
Be sure to connect the FS unit (or Shut-off
Valve unit) and install the battery unit.
When the CODE No. [107] is set to [02],
the corresponding indoor unit stops when
refrigerant leakage is detected (other indoor
units can continue operation).
پ
Indoor units connected to the multi port
type FS unit cannot be set to [02] for indoor
DN[107].
پ
In the [01] setting and [02] setting of the
CODE No. [107], the position where the
FS unit (or Shut-off Valve unit) can be installed
is different.
[03]
Area (b)
Area (b)
FS-S
FS-S
b
b
d
d
a
c
c
When the CODE No. [107] is set to [03]
by area (b), the entire system stops when
refrigerant leakage is detected.
This setting can only be used in rooms that fall
under area (b).
Be sure to install a refrigerant leak detector.
a : Outdoor unit
b : Indoor unit
c : Leak detector
d : Single port type Flow Selector unit (or Shut-off Valve unit)
e : Multi port type Flow Selector unit
f : Battery unit
