Appendix - Toshiba MMY-MUP0801HT8P-E Installationsanleitung

15

Appendix

Regulation of harmonic currents
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal
to Ssc (*1) at the interface point between the user's supply and the public system. It is the responsibility of the
installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that
the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to Ssc (*1)
Furthermore, when similar equipment or other equipment which may cause harmonic current emissions are to be
connected to the same interface point with this equipment, to reduce the risk of possible problems which may be
caused from addition of those harmonic current emissions, it is recommended to make sure that the short-circuit
power Ssc at the interface point is greater than the sum of the minimum Ssc required by all the equipment which
will be connected to the interface point.
Ssc (*1)
Model
MMY-MUP0801HT8P(JP)-E
MMY-MUP1001HT8P(JP)-E
MMY-MUP1201HT8P(JP)-E
MMY-MUP1401HT8P(JP)-E
MMY-MUP1601HT8P(JP)-E
MMY-MUP1801HT8P(JP)-E
MMY-MUP2001HT8P(JP)-E
MMY-MUP2201HT8P(JP)-E
MMY-MUP2401HT8P(JP)-E
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IM_1141001201-2_Book.indd 88 IM_1141001201-2_Book.indd 88
Ssc (kW)
1088
1406
1699
1843
2111
2249
2438
2946
2936
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 floor 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 (kg)
Min. volume of the indoor unit installed room (m
Refrigerant Concentration Limit shall be in accordance with local regulations.
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 (10 kg)
Room A Room B
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A, B and C is 10 kg.
The possible amount of leaked refrigerant gas in rooms D, E and F is 15 kg.
– 88 –
3 )
≤ Concentration limit (kg/m 3 )
Outdoor unit
e.g., charged amount (15 kg)
Indoor unit
Room C Room D Room E Room F
EN
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