11
© Munters Corporation, December 2019
QM1059r6
Operation
4.
INITIAL START-UP:
With electrical power off, verify that the fan propeller turns freely
and that all fasteners are secure. Turn on electrical power and confirm that the fan
operates smoothly.
ADJUSTMENTS:
Set the fan control to the temperature shown on your ventilations
system drawing, or to a value which will provide the desired environmental
conditions.
Single Phase Fans:
When variable speed controls are used, the fan's idle speed will
need to be set to the recommended minimum airflow rate. Refer to the procedures
included with each control. The table below provides airflow rates at various propeller
speeds for fans wired for 240 VAC.
A = Fan with cone & shutter B = Fan with hood & shutter
CFM
0.02” Static Pressure
0.05” Static Pressure
A
B
A
B
RPM
VOLTS RPM
VOLTS RPM
VOLTS RPM
VOLTS
36” Fans
750
—
—
—
—
—
—
350
121
1000
—
—
—
—
370
123
390
128
1250
330
117
330
119
390
127
410
130
1500
360
123
360
125
410
131
430
134
1750
370
125
370
127
425
136
440
136
2000
380
128
390
130
450
137
460
139
2500
410
131
420
135
470
141
480
143
3000
430
135
440
138
490
145
500
146
4000
470
142
480
145
520
149
530
151
5000
520
148
530
152
560
156
570
158
6000
560
154
580
159
590
161
600
162
7000
610
159
640
165
640
166
680
172
8000
650
166
700
173
690
172
750
179
9000
710
172
760
185
740
178
810
209
10,000
770
179
840
225
790
195
—
—
11,300
840
223
—
—
—
—
—
—
Three Phase Fans:
1)
The use of a quality frequency drive and the installation of line reactors is recommended
to reduce voltage spikes and harmonic distortion.
2)
Minimum operating frequency of 30 Hz.
3)
Will require three pole contactors with overload protection (by others).
4)
36" Direct Drive, 3 Phase fan is not suitable for frequency drive.
4.1 Operation
WARNING
!
Disconnect Power
Before Servicing
WARNING
!
Moving Parts, Disconnect
Power Before Servicing.
WARNING
!
Moving Parts: Disconnect
Power Before Servicing.
WARNING
!
Do Not Power Wash
Electrical Devices.
