5
14
Speed adjustment jumper
Speed Adjustment
The fan has three speeds which are selectable by changing the position of the jumper. The fan is factory set to
Setting 3 - High speed. To change the speed setting, pull the jumper off the header pins and place back onto the
desired position, see Fig14.
Setting 1 is
LOW SPEED
Setting 2 is
MEDIUM SPEED
Setting 3 is
HIGH SPEED
C.
OVER-HEATING PROTECTION.
The fan motor is fitted with Thermal Overload Protection. This is a one-shot thermal fuse. In the event of a fault
condition the fan will be automatically switched off. If this occurs isolate the fan, and call your service engineer.
D.
SERVICING AND MAINTENANCE.
WARNING:
THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING MAINTENANCE.
1. At intervals appropriate to the installation, the fan should be inspected and cleaned to ensure there is no build
up of dirt or other deposits.
The In-Line Mixed Flow fan has sealed for life bearings, which do not require lubrication.
Dimensions(mm)
100
125
150
200
AØ
98
122
147
198
BØ
178
178
200
220
C
124
124
138
138
D
298
259
307
300
E
96
96
118
130
F
168
168
192
195
G
FIXING CTRS
120
120
162
100
H
FIXING CTRS
153.5
153.5
178
180
15
Setting 1
LOW SPEED
Setting 2
MEDIUM SPEED
Setting 3
HIGH SPEED
