Table of Contents
Advertisement
(1) Installation conditions for each requirement
• To comply with the requirements of enhanced tightness refrigerating systems of IEC 60335-2-40, the system is
equipped with Shut-off Valve unit, Leak Detector and Battery kit. And each systems have the appropriate safety
systems in according to the system specifications. In case the requirements of this manual are followed, no
additional safety measures are needed.
• Follow the installation requirements below to ensure that the complete system is compliant to legislation.
• If you have any questions, please contact the dealer where you purchased the product.
• Depending on the conditions, safety measures (optional parts) may be required.
• System compliance has been completed to IEC60335-2-40 Ed6. If EN378 compliance is required please refer
separately to EN378 for guidance.
1) Installation conditions for each requirement
• Please observe the following warning and install according to "4. Installation of R32 refrigerant air conditioner".
WARNING
Basically the outdoor unit has to be installed in outdoor area.
The outdoor unit has to be installed at least one side of 4 sides surrounding the unit open.
When installing indoors such as in a machine room, it shall be installed in accordance with IEC60335-2-40.
For other installation conditions, please contact the dealer where you purchased the product.
150 or
more
2) Indoor unit installation
For the installation of the indoor unit, refer to the installation manual attached to the indoor unit.
For the indoor unit installation of R32 air conditioning system, check the following before installing.
WARNING
• Appliance shall be installed, operated and stored in a room with a floor area larger than minimum floor area
2
[A
] m
.
min
• For appliances using R32 refrigerant connected via an air duct system to one or more rooms, No auxiliary
devices, which may be a potential ignition source, shall be installed in the duct work. (example: hot surfaces with
a temperature exceeding 700°C and electric switching device)
• The supply and return air shall be directly ducted to the space. Open areas such as false ceilings shall not be
used as a return air duct;
• There shall be no operating ignition sources (example: open flames, an operating gas appliance or an operating
electric heater) in case the floor area is less than the minimum floor area A (m²).
For the applicable floor area and minimum floor area [A
• Piping shall be installed according to the instruction in "6 Refrigerant piping". [A
of the connection pipe, types of indoor unit, etc.
25-EN
200 or
300 or
more
more
], refer to [ 1 ] to [ 5 ] below.
min
] is determined by the length
min
– 13 –
[1] [Confirmation of installation space and floor area]
• Make sure that each indoor unit meet the installation height and floor area specified by indoor unit type and the
total system refrigerant amount.
• Please refer to the numerical values of line A and line B in the graphs below.
15
(d)
14
13
12
11
Line B
10
9
(c)
(b)
8
7
6
5
4
3
2
5
20
35
50
65
Minimum floor area A
Ceiling mounted type include duct type
15
(d)
14
13
12
11
Line B
10
9
(c)
8
(b)
7
6
5
4
3
2
5
20
35
50
65
Minimum floor area A
Wall mount and under ceiling type
Other than the lowest
basement floor
Area (a)
No safety measured required.
Area (b)
Leak detector required.
Leak detector and safety shut-
Area (c)
off valve required.
Area (d)
Installation not permitted.
Line A
(a)
Other than lowest
80
95
110
basement floor
2
[m
]
min
The lowest
basement floor
Line A
(a)
80
95
110
[m
2
]
min
The lowest floor of the basement
No safety measured required.
A large space of LFL/4 or less.
Leak detector and safety
A large space of LFL/4 - LFL/2.
shut-off valve required.
A narrow space of LFL/2 or
Installation not permitted.
more.
Maximum allowable total
Installation not permitted.
refrigerant amount determined
from LFL
LFL threshold
26-EN
Advertisement
Table of Contents
