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61-EN
62-EN
WARNINGS ON REFRIGERANT LEAKAGE
Check of Concentration Limit
The room in which the air conditioner is to be installed
requires a design that in the event of refrigerant gas
leaking out, its concentration will not exceed a set limit.
The refrigerant R410A which is used in the air conditioner is
safe, without the toxicity or combustibility of ammonia, and is
not restricted by laws to be imposed which protect the ozone
layer. However, since it contains more than air, it poses the
risk of suffocation if its concentration should rise excessively.
Suffocation from leakage of R410A is almost non-existent.
With the recent increase in the number of high concentration
buildings, however, the installation of multi air conditioner
systems is on the increase because of the need for effective
use of
fl
oor space, individual control, energy conservation by
curtailing heat and carrying power etc.
Most importantly, the multi air conditioner system is able to
replenish a large amount of refrigerant compared with
conventional individual air conditioners. If a single unit of the
multi conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if
the refrigerant accidentally leaks out, its concentration does
not reach the limit (and in the event of an emergency,
measures can be made before injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install mechanical
ventilation combined with a gas leak detection device.
The concentration is as given below.
Total amount of refrigerant (lbs (kg))
Min. volume of the indoor unit installed room (ft
3
(m
3
))
≤
Concentration limit (lbs/ft
3
(kg/m
3
))
Concentration limit
Compliance to the local applicable regulations and standards
for the concentration limit is required.
NOTE 1 :
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should be as
charged in each independent device.
e.g.,
charged amount
((22lbs) 10kg)
e.g.,
charged amount
(33lbs (15kg))
Outdoor unit
Indoor unit
Room A Room B Room C Room D Room E Room F
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A,
B and C is 22lbs (10kg).
The possible amount of leaked refrigerant gas in rooms
D, E and F is 33lbs (15kg).
Important
NOTE 2 :
The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas (opening
without a door, or an opening 0.15% or larger than the
respective
fl
oor spaces at the top or bottom of the door).
Outdoor unit
Refrigerant piping
Indoor unit
(3) If an indoor unit is installed in each partitioned room and
the refrigerant piping is interconnected, the smallest
room of course becomes the object. But when a
mechanical ventilation is installed interlocked with a gas
leakage detector in the smallest room where the density
limit is exceeded, the volume of the next smallest room
becomes the object.
Refrigerant piping
Outdoor unit
Indoor unit
Mechanical ventilation device - Gas leak detector
Small
room
Medium
room
Large room
Very
small
room
SMMS wave tool
“SMMS wave tool” is an application software (“Application”) for the Android OS smartphone and for those who install and do
maintenance to the compatible air conditioning equipment.
The Application enables checks of some of the system and data and test operations of compatible air conditioning equipment.
Please check the information about compatible air conditioning equipment and smartphone from the below URL.
Be sure to read the Operating Manual before the use of this Application, “SMMS wave tool”.
You can download the Application and the Operating Manual from the below URL or QR code.
QR code is a trademark or registered trademark of DENSO WAVE Inc.
Android is a trademark or registered trademark of Google Inc.
URL: http://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool/
NOTICE
• This Application enables the auto-address setup and the test operation of the outdoor unit by smartphone in 48 hours from
the power input to the outdoor unit.
• You should decide whether to make use of this auto-address setup and test operation function at its own responsibility and
also be sure to con
fi
rm notices in the Operating Manual before performing the test operation.
• If you want to disable the function of the auto-address setup and the test operation, perform the following operations.
• Refer to the service manual for setting change of the auto-address setup and the test operation function to be effective.
■
Switch setting of some functions prohibition
Step
Rotary switch
Push switch
7-segment display
Condition
SW01
SW02
SW03
SW04
[ A ] [ B ]
(1)
2
1
14
–
[ nf ] [ c.00 ]
Setting preparation
(2)
2
1
14
Press for more
than 5 secs
[ nf ] [ c.01 ]
Setting completion
(3)
1
1
1
–
[ U.1. ] [ - - - ]
Return the switch
* Do it again if the 7-segment display is different from the above.
* The functions other than the auto-address setup and test operation of this Application can work normally even
if the auto-address set up and test operation function are disabled.
CAUTION
• High voltage parts exist in the electrical control box.
If you set Switch setting, set it from the access door cover of the electrical control box cover to avoid electric shock.
• After
fi
nishing operations, slide the access door cover to the position before and
fi
x it with the screw.
SW04
SW01 SW02 SW03
D600 D601 D602 D603 D604
SW05
SW15
Push switch
7-segment
display [A]
Rotary switches
7-segment
display [B]
Access
door cover
Cover of the electrical
control box
Fixing screw for the
access door cover
HOW TO USE
• This Application uses the NFC (Near Field Communication) function of smartphone.
• For the use, hold your smartphone to the “TOUCH” mark of the outdoor unit.
• Refer to the Operating Manual of the “SMMS wave tool” for the details.
Outdoor unit
NFC receiver
for SMMS wave tool
Smartphone
QR code
1122001001-2_EN-FR.indb 31
1122001001-2_EN-FR.indb 31
2/18/17 11:45 AM
2/18/17 11:45 AM
