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ManualsBrandsMitsubishi ManualsDomestic AppliancesPMFY-P12NBMU-E
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3-3. Air capacity taken from outside
PMFY-P·NBMU-E series are capable of taking air from outside.
When taking air from outside, the duct fan must be used.
The air capacity should be 20% or less of the air flow SPEC(Hi).
Q…Planned amount of fresh air intake
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
C…Static pressure of booster fan with
air flow amount Q
D…Static pressure loss increase
amount of fresh air intake dust
system for air flow amount Q
<in. W.G>
E…Static pressure of indoor unit with
air flow amount Q
Qa…Estimated amount of fresh air
intake with out D <CFM>
<CFM>
<in. W.G>
<in. W.G>
<in. W.G>
<in. W.G>
(Knock out)
4-{1/8
Fresh air intake hole
(Knock out)
Fresh air intake hole
90-
{4-
13/16
{
3-15/16
4-1/4
9-13/16 11-3/8
(Unit:inch)
Installation at site
1
~
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 33 feet.
Be sure to secure insulation
material by tape and such
5
Green
Yellow
Orange
Connector (5P)
Package side
Multiple remote
controller adapter
PAC-SA88HA-E
Be sure to secure insulation
material by tape and such
CN51
on
indoor unit
board
Red
Brown
MB
Q
0
B
A
C
1
2
3
Curve in the
right graphs.
Duct characteristics
at site
Q
A
EC
Q
Qa
AD
Interlocking operation method with duct fan
(Booster fan)
●Whenever the indoor unit is operating, the duct fan must
also operate.
(1)Connect the optional multiple remote controller adaptor
(PAC-SA88HA-E) to the connector CN51 on the indoor
controller board.
(2)Power the relay by connecting the 12V DC coil terminals
from the Yellow and Orange connector lines.
(w)Use a relay under 1W.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (12V DC LY-1F)
How to read curves
0.2
Static pressure (in.W.G.)
0.1
00
-0.1
-0.2
-0.3
-0.4
010
Air flow (CFM)
20
Characteristic diagram of air capacity taken from outside of PMFY-P·NBMU-E
30 40 50 60 70 80
2 intake
1 intake
OC341--1new.qxp 05.6.1 5:16 PM Page 7