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4-3. 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 is used.
The air capacity should be 20% or less of the airflow SPEC(Hi).
PMFY-P06NBMU-E
PMFY-P06NBMU-E
1
PMFY-P08NBMU-E
PMFY-P08NBMU-E
1
PMFY-P12NBMU-E
PMFY-P12NBMU-E
1
PMFY-P15NBMU-E
PMFY-P15NBMU-E
1
300 CFM
320 CFM
320 CFM
370 CFM
60 CFM
64 CFM
64 CFM
74 CFM
Air flow (Hi) Air capacity taken from outsideService Ref.
(Knockout)
4-{1/8
Fresh air intake hole
(Knockout)
Fresh air intake hole
90-
{4-
13/16
{
3-15/16
4-1/4
9-13/16 11-3/8
(Unit:inch)
~
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, etc.
5
Green
Yellow
Orange
Connector (5P)
Indoor unit side
Multiple remote
controller adapter
PAC-SA88HA-E
Be sure to secure insulation
material by tape, etc.
CN51
on
indoor unit
board
Red
Brown
MB
1
Installation at site
Q
0
B
A
C
1
2
3
Curve in the
right graphs
Duct characteristics
at site
Q
A
EC
Q
Qa
AD
Operation in conjunction with duct fan (Booster fan)
●Whenever the indoor unit is operating, the duct fan
operates.
(1)Connect the optional multiple remote controller
adaptor (PAC-SA88HA-E) to the connector CN51
on the indoor controller board.
(2)Drive the relay after connecting the 12V DC relay
between the Yellow and Orange connector lines.
(w)Use a relay of 1W or smaller.
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
Q…Designed amount of fresh air
intake <CFM>
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q <in. W.G>
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
<in. W.G>
C…Static pressure of booster fan with
air flow amount Q <in. W.G>
D…Static pressure loss increase
amount of fresh air intake duct
system for air flow amount Q
<in. W.G>
E…Static pressure of indoor unit with
air flow amount Q <in. W.G>
Qa…Estimated amount of fresh air
intake without D <CFM>
OC341B--1.qxp 07.7.11 1:29 PM Page 7