Technibel Climatisation 38.7106.008, Technical Data & Service Manual

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1-4 Indoor Fan Performance
If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may
drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following
procedure:
(1) Remove the screw on the electrical component box
and remove the cover plate.
(2) Disconnect the fan motor sockets in the box.
(3) Replace the adapter cable with the booster cable
(sockets at both ends).
(4) Securely connect the booster cable sockets
between the disconnected fan motor sockets in step 2
as shown in the Figure.
(5) Place the cable neatly in the box and reinstall the cover plate.
NOTE HH: Using the booster cable
DSAF97/127R5I - DSAF98/128MR5I H: At shipment
How to read the diagram
The vertical axis is the external static pressure (mm W.G.) while
the horizontal axis represents the AIR FLOW (m
3
/h).
The characteristic curves for “HH”, “H”, “M” and “L”
fan speed control are shown.
The nameplate values are shown based on the “H” air flow rate.
For the type 9/12000 the flow rate is 620 m
3
/h while the external
static pressure is 5 mm W.G. at H position;
For the type 18000 the flow rate is 865 m
3
/h while the external
static pressure is 5 mm W.G. at H position;
for the type 24000 the flow rate is 985 m
3
/h while the external
static pressure is 5 mm W.G. at H position.
DSAF187R5IAA DSAF247R5IAA
Fan motor
Booster cable
(M - H - HH)
Connector motor cable (at the supply)
Adapter cable
(L - M - H)
0
2
4
6
8
10
300 500 700 900 1100 1300 1500
L
M
H
HH
0
2
4
6
8
10
300 500 700 900 1100 1300 1500
H
HH
M
L
EXTERNAL
ST
A
TIC PRESSURE (mmW
.G.)
EXTERNAL
ST
A
TIC PRESSURE (mmW
.G.)
0
2
4
6
8
10
200 400 600 800 1000
H
HH
M
L
m
3
/h
EXTERNAL
ST
A
TIC PRESSURE (mmW
.G.)
11