Applied Control For Outdoor Unit; Outdoor Fan High Static Pressure Shift - Toshiba MMY-MAP0804HT8(Z)(ZG)-E Service Manual

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
Model
Maximum external static pressure
(*) Outdoor unit air flow
(*) Calculate duct resistance from outdoor unit air flow.
Table 2: Maximum External Static Pressures for Combined Use of Base Units
(1) Standard models
Combined Model
horsepower output
MMY-
8 MAP0804
10 MAP1004
12 MAP1204
14 MAP1404
16 AP1614
18 AP1814
20 AP2014
22 AP2214
24 AP2414
26 AP2614
28 AP2814
30 AP3014
32 AP3214
34 AP3414
36 AP3614
38 AP3814
40 AP4014
42 AP4214
44 AP4414
46 AP4614
48 AP4814
MMY- MAP0804 MAP1004
(Pa) 60
(m3/h) 9900
Combination of outdoor units
Unit 1 Unit 2
MAP0804
MAP1004
MAP1204
MAP1404
MAP0804 MAP0804
MAP1004 MAP0804
MAP1004 MAP1004
MAP1204 MAP1004
MAP0804 MAP0804
MAP1004 MAP0804
MAP1004 MAP1004
MAP1004 MAP1004
MAP0804 MAP0804
MAP1004 MAP0804
MAP1004 MAP1004
MAP1004 MAP1004
MAP1004 MAP1004
MAP1204 MAP1004
MAP1204 MAP1204
MAP1204 MAP1204
MAP1204 MAP1204
106
MAP1204
60 50
10500 11600
Unit 3
MAP0804
MAP0804
MAP0804
MAP1004
MAP0804
MAP0804
MAP0804
MAP1004
MAP1004
MAP1004
MAP1004
MAP1204
MAP1204
MAP1404 MAP1604
40 40
12000 13000
Maximum external
static pressure
Unit 4
(Pa)
60
60
50
40
60
60
60
50
60
60
60
60
MAP0804 60
MAP0804 60
MAP0804 60
MAP0804 60
MAP1004 60
MAP1004 50
MAP1004 50
MAP1004 50
MAP1204 50