Daikin VRV III Manual page 47

Features
Selection Procedures (in Japan)
Various methods are used to calculate the required ventilating air flow rate according to CO
inhabitants in a room, waste gas generated by use of fire, and other conditions of a room.
Here are 2 patterns of calculating methods.
Based on inhabitants
Required ventilating
air flow rate (m
×
A : 20 Living room floor space (m
B : Area occupied per person (m
The above equation conforms to article 20, 2
No.2 of the Building Standards Act in Japan.
Note :
1. 20 (in the above equation) means "20(m
on the CO
2
should be used.
2
2. Use 10 (m
<Table 1>
Type of building
Dining houses, restaurants, coffee-shops
Cabarets, beer halls
Japanese-style restaurants, hall for hire
Store market
Pool rooms, Ping-pong rooms, dance halls,
bowling alleys
Pin-ball parlors, Go club houses, mahjong
parlors
Inns, hotels, and motels
Massage parlors
Meeting places, public halls
Offices
* : Values set by the Metropolitan Maintenance Bureau in Japan.
Note :
1. Table indicates the required ventilating air flow rate calculated as 20 m
2. The area occupied per person by type of business is calculated in reference to Application Standards for
building administration in compliance with Building Standards Act in Japan.
Based on Room size
Required ventilating
air flow rate (m
C : Number of ventilation required per hour (ventilation / h)
D : Area of room (m
E : Height of Ceiling (m)
Calculation is based on the experiences of hygienic laboratory, etc. to find out the number of hourly ventilation of the
room air.
(Selection example)
Place : Living room of common household
Required ventilation : 6 times / h (See Table 2)
Area of room : Approx. 30 (m
Height of ceiling : 2.4 m
Required ventilating air flow rate = 6
Required ventilating air flow rate and the unit size 500 is almost equal.
So select the close size of the unit.
In this case, select VKM500GMV1.
42
×
20 A
=
3
B
/ h)
2
)
2
)
exhausted by an adult sitting still in a room. If smoking is allowed, other calculation method
) if the area occupied per person exceeds 10 (m
× ×
=
C D E
3
/ h)
2
)
2
)
× ×
30
3
/ h / person)", which is the required ventilating air flow rate based
2
).
Area occupied per
person (N)
2
3 m Floor space of a part used for business purposes.
2
2 m Floor space of a part used for business purposes.
2
3 m Floor space of a part used for business purposes.
2
3 m Floor space of a part used for business purposes.
2
2 m Floor space of a part used for business purposes.
2
2 m Floor space of a part used for business purposes.
2
10 m Floor space of a part used for business purposes.
2
5 m Floor space of a part used for business purposes.
Persons accommodated simultaneously with the
2
0.5 – 1 m
number of persons calculated per unit.
2
5 m Floor space of an office.
= . .
3
432 (m / h)
2.4
: http://splitoff.ru/tehn-doc.html
ED34-862
generated by
2
Remarks
3
/ h.
General Information