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6-7. Applied control for Outdoor Unit
The outdoor fan high static pressure support and priority operation mode setting (cooling / heating / number of units
/ or priority indoor unit) functions are made available by setting relevant switches provided on the interface P.C.
board of the outdoor unit.
6-7-1. Outdoor Fan High Static Pressure Shift
Purpose/characteristics
This function is used when connecting a duct to the discharge port of an outdoor unit (as part of, for example, unit
installation on the floor by floor installation.)
Setup
Turn ON the DIP switch [SW10, Bit 2] provided on the interface P.C. board of the outdoor unit.
This function must be enabled with every discharge duct connected outdoor unit for both of the header and follower
units.
Specification
Increase the speed of the propeller fan units on the outdoor fan to allow the installation of a duct with a maximum
external static pressure not greater than specified in the table below. If a discharge duct with a resistance greater
than 15 Pa (1.5 mmAq) is to be used, enable this function. The maximum external static pressures of base units
are shown below (Table 1). In the case of combined use of multiple outdoor units, set all the units to the same
maximum external static pressure as the one with the lowest maximum external static pressure (see table2).
Table 1: Maximum External Static Pressures of Base Outdoor Units
(*) Calculate duct resistance from outdoor unit air flow.
Table 2: Maximum External Static Pressures for Combined Use of Base Units
(1) Standard models
Model
MMY-
MAP0804
MAP1004
MAP1204
MAP1404
MAP1604
Maximum external static pressure
(Pa)
60
60
50
40
40
(*) Outdoor unit air flow
(m3/h)
9900
10500
11600
12000
13000
Combined
horsepower output
Model
MMY-
Combination of outdoor units
Maximum external
static pressure
(Pa)
Unit 1
Unit 2
Unit 3
Unit 4
8
MAP0804
MAP0804
60
10
MAP1004
MAP1004
60
12
MAP1204
MAP1204
50
14
MAP1404
MAP1404
40
16
AP1614
MAP0804
MAP0804
60
18
AP1814
MAP1004
MAP0804
60
20
AP2014
MAP1004
MAP1004
60
22
AP2214
MAP1204
MAP1004
50
24
AP2414
MAP0804
MAP0804
MAP0804
60
26
AP2614
MAP1004
MAP0804
MAP0804
60
28
AP2814
MAP1004
MAP1004
MAP0804
60
30
AP3014
MAP1004
MAP1004
MAP1004
60
32
AP3214
MAP0804
MAP0804
MAP0804
MAP0804
60
34
AP3414
MAP1004
MAP0804
MAP0804
MAP0804
60
36
AP3614
MAP1004
MAP1004
MAP0804
MAP0804
60
38
AP3814
MAP1004
MAP1004
MAP1004
MAP0804
60
40
AP4014
MAP1004
MAP1004
MAP1004
MAP1004
60
42
AP4214
MAP1204
MAP1004
MAP1004
MAP1004
50
44
AP4414
MAP1204
MAP1204
MAP1004
MAP1004
50
46
AP4614
MAP1204
MAP1204
MAP1204
MAP1004
50
48
AP4814
MAP1204
MAP1204
MAP1204
MAP1204
50