[ 4 ] [Safety Shut-Off Valve Installation] - Toshiba MMY-SUG0801MT8P-E Installation Manual

(The examples for safety device installations)
The location of the leak detector varies depending on the safety system and the room.
Incorrect
f FS-S d f FS-S d
a
1
b b
c c
f FS-S d f FS-S d
a
2
b b
c c
d
FS-S
f
a
3
b b
c c
f FS-S d f FS-S d
a
4
b b
c
c
e
FS-M
a
5
b b b
c c
37-EN
Correct
f FS-S d f FS-S d
a
c c
d
FS-S
f
a
b b
c
f FS-S d FS-S d
a
b b
c
e
FS-M
f
a
b b b
c c c c
– 19 –
Case
Install the Leak
Detector in the
same room as the
connected indoor
unit.
a
6
Group setting of
indoor unit across
FS unit (or Shut-off
Valve unit) is not
possible.
a
7
Only one Leak
Detector can be
connected to indoor
units with a group a : Outdoor unit
setting. b : Indoor unit
c : Leak detector

[ 4 ] [Safety shut-off valve installation]

Flow Selector unit and Shut-off Valve unit can be used as safety shut-off valve.
In Pump-down operation and Individual shut-off operation, the position where the safety shut-off valve can be
installed differs depending on the indoor unit, safety shut-off valve type, etc.
Multiple refrigerant
The installation position shall be determined according to the following.
Leak Detectors
cannot be
connected to one
indoor unit.
Pump-down operation
For Pump-down operation, following 3 types of safety shut-off valves can be installed;
NO. Type
1 FS unit (Multi port)
Only one Leak
Detector can be
2 FS unit (Sigle port)
connected to indoor
units with a group
3 SV unit
setting.
f
Install each indoor
• Flow Selector (FS) unit
unit in a separate
room, and do not The installation availability line differs depending on the FS unit type (multi / single, horsepower, number of
set the group if a
ports) and the length of the connecting pipe.
Leak Detector is
Example) Multi port types of 8 and 12 ports Shutoff valve secondary side (Max. pipe connection length 180 m)
required.
Multi port type
FS unit cannot be
used by setting the
CODE No. [107]
to [02] (Individual
shut-off).
Incorrect
e
e
FS-M
f
a
b b b
b
c c c
e
e
FS-M
f
a
b b b b
c
d : Single port type Flow Selector unit (or Shut-off Valve unit)
e : Multi port type Flow Selector unit
f : Battery unit
System
Heat recovery
Heat recovery
Cooling only setting of heat recovery, Heat pump
Correct Case
Only one Leak
Detector can be
connected to indoor
units with a group
setting.
If indoor units
installed in the
FS-M
f
same room are
used in the group
setting, the Leak
b b
Detector to be
connected should
be one in one
group.
c c
Multi port type
FS unit cannot be
used by setting the
CODE No. [107]
to [02] (Individual
shut-off).
Install the Leak
Detector in the
FS-M same room as the
f
connected indoor
unit.
Multi port type
b b
FS unit cannot be
used by setting the
CODE No. [107]
to [02] (Individual
c
shut-off).
FS : Flow Selector
FS : Flow Selector
SV : Shut-off Valve
38-EN