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
Variable Speed Controller
Speed adjustment for the basic version can also be achieved with the use of a speed controller (stock reference
W300310). If a speed controller is used then the speed setting on the fan unit should be setting 3 – High Speed.
Follow the Installation and wiring instructions for the speed controller unit to install the controller correctly. A
variable speed controller should
NOT
be used with the timer version.
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 ACM In-Line Mixed Flow fan has sealed for life bearings, which do not require lubrication.
Dimensions(mm)
100 125 150 160 200
AØ 98
122
147
159
198
BØ 178
178
200
200
220
C 124
124
138
138
138
D 298
259
307
352
300
E 96
96
118
118
130
F 168
168
192
192
145
G
FIXING CTRS
120 120 162 162 100
H
FIXING CTRS
153.5 153.5 178 178 180
15
Setting 1
LOW SPEED
Setting 2
MEDIUM SPEED
Setting 3
HIGH SPEED
