Mitsubishi Electric PLA-RP-AA Technical Data Book page 84

8-3.PMH-P•BA
Air capacity taken from outside
PMH-P·BA series are possible to be taken air from outside.
When taking air from the outside, the duct fan can be used to.
The air capacity should be 20% or less of the air flow SPEC(Hi).
PMH-P25BA
PMH-P35BA
PMH-P50BA
How to read curves
Duct characteristics
Curve in the
at site
1
left praphs.
0
Q
2
Q
3
Q
Qa
250 288.5
Flesh air intake hole
(Knock out)
Air flow
Air capacity taken outside
(Hi)
3
8.4m /min
3
10.0m /min
3
11.0m /min
Q...Planned amount of fresh air intake <m
A...Static pressure loss of fresh air intake duct system with air flow amount Q <Pa>
B...Forced static pressure at air conditioner inlet with air flow amount Q <Pa>
C...Static pressure of booster fan with air flow amount Q <Pa>
D...Static pressure loss increase amount of fresh air intake duct system for air flow amount Q <Pa>
E...Static pressure of indoor unit with air flow amount Q <Pa>
Qa...Estimated amount of fresh air intake without D <m
Characteristic diagram of air capacity taken from outside
50.0
0.0
-50.0
-100.0
0.0 0.5
90-
Flesh air intake hole
(Knock out)
3
1.6m /min
3
2.0m /min
3
2.2m /min
3
/min>
1.0 1.5 2.0
3
Air flow (m /min)
84
4-{2.8
3
/min>
2 intakes
1 intake
2.5