-
-
'15 • HM-T-246
Calculation of mechanical ventilation capacity
2
2
2
2
Installation of leak detector
[Note]
Monitor the concentration with an alarm type CO
2
densitometer.
Limit is lower than
1.5 m because leaked
CO
2
accumulates at
the bottom.
Necessary room space: 287 m
3
or larger
Necessary
floor area:
191 m
2
or more
Hot water
supply pipe
Water supply
pipe
CO
2
heat pump water heater
In the room
Exhaust opening
As low as possible
Air suction opening a)
Air
inlet
b)
Leaked
CO
2
Floor
surface
1.5 m or
lower
Air outlet
Lower than
0.3 m from
floor surface
[Caution]
When necessary
space in the room and
necessary floor area
are not available, a
mechanical ventilating
equipment must be
installed.
Opening for ventilation
must be positioned as
low as possible.
Ventilation:
31 m
3
/min or more
Hot water
supply pipe
Water
supply
pipe
CO2 heat pump
water heater
In the room
Exhaust
opening
As low as
possible
Air suction opening a)
Air
inlet
b)
Floor surface
Air outlet
Lower than
0.3 m from
floor surface
Room temperature
… 25˚C or lower
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