Summary - Mitsubishi Electric Lossnay series Technical Manual

•
CHAPTER 10 Ventilation Standards in Each Country
1. Ventilation Standards in Each Country
1.1 Japan
Summary of Laws Related to Ventilation
Item
Acceptable Range
Related Laws
Law for
Buildings of at least
Maintenance of
3,000 m
Sanitation in
least 8,000 m
Buildings
Buildings with
requirements for
ventilation equipment.
1) Windowless rooms.
The Building 2) Rooms in theaters,
Standard Law of movie theaters,
Japan assembly halls, etc.
3) Kitchens, bathrooms,
etc.
Rooms with equipment
or devices using fire.
Offices.
Industrial Safety and
(Office sanitation
Health Act
regulated standards)
U-86
Room Environment Standard Values
If a central air quality management system or mechanical
ventilation equipment is installed, comply with the standard
target values shown in the table below.
Impurity Volume of
Particles
CO Rate
2
(for schools, at
CO
2
). 2
Temperature
Relative Humidity
Ventilation
Central air quality management system ventilation
capacity and characteristics
Effective ventilation capacity V
Af: Floor space (m
Impurity Volume of
Particles
CO Rate
CO
2
Temperature
Relative Humidity
Ventilation
For general ventilation, the effective ventilation area
opening is at least 1/20 of the floor space, and the
ventilation equipment installed gives a CO density of 50
ppm and CO
air quality management system or mechanical ventilation
equipment is installed, comply with the standard target
values shown in the table below.
Impurity Volume of
Particles
CO Rate
CO
2
Air Flow
Heat and Humidity
Conditions
Less than 0.15 mg per 1 m
of air
Less than 10 ppm. (Less than 20
ppm when outside supply air has
a CO rate of more than 10 ppm.)
Rate
Less than 1,000 ppm.
1) Between 17°C and 28°C
2) When making the room
temperature cooler than the
outside temperature, do not
make the difference too great.
40% - 70%
Less than 0.5 m/sec.
20Af/N(m
2
); N: Floor space occupied by one person
Less than 0.15 mg per 1 m
of air
Less than 10 ppm.
Rate Less than 1,000 ppm.
1) Between 17°C and 28°C
2) When making the room
temperature cooler than the
outside temperature, do not
make the difference too great.
40% - 70%
Less than 0.5 m/sec.
density of 5,000 ppm or less. If a central
2
Air (1 atmospheric pressure, 25°C)
less than 0.15 mg per 1 m
Less than 10 ppm. (Less than 20 ppm
when outside supply air has a CO
rate of more than 10 ppm.)
Rate
Less than 1,000 ppm.
Air flow in room is less than
0.5 m/s, and air taken into the room
does not blow directly on or reach
occupants.
Heat between 17°C - 28°C
Relative humidity 40% - 70%
Remarks
Applicable buildings are
those designed to serve a
specific purpose.
3
Applicable buildings are
those with ventilation
3
) equipment requirements.
3
3
of air