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Two Speed
Installation Overview: The two speed control is factory
mounted to the fan and may be set to provide any
two speeds the application requires. It also includes a
24 VAC transformer which has a dual voltage primary
(115/230V), selectable .via a switch on the housing
near the power cable. The voltage will be factory se,tto
match the motor vOltage;
1. A green LED will be illuminated when the 2-speed
control is powered.
2. There are two methods of toggling between speed A
and speed 8:
a. Dry contact input - this utilizes an external
switching device such as a relay or SPOT switch
to toggle between the two speeds.
• Connect terminal "A" to "COM" for speed A.
• Connect terminal "8" to "COM" for speed 8.
If no contact is made between either terminal. the
motor will be off.
b. AC Digital input - this input allows an AC voltage
signal to be fed directly into the2~speed control
to change speeds.
• Send 115-230V AC to L1 OR L2 for speed 8.
• Send 115~230V AC to L1 AND L2 for speed A.
If no voltage is applied to either terminal, the
motor will be off.
c. DO NOT CONNECT 80TH DRY CONTACT AND
DIGITAL INPUTS SIMULTANEOUSLY.
3. To test fan operation before the external control
devices are installed, a jumper wire can be
L-
connected between the COM and A or 8 terminal on
the dry contact input fortan operation.
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Two Speed
Assembly
SPOT
SWITCH/RElAY
BY OTHERS
lOW \iOlTACE ls.tOV)." . ROUTE. AWAY
FROM HIGH VOlTACE UNES
.AND/OR USE SHIElDrO
CASU:
I
~
100" ORU:SS
~
115/230
YAC INPUT
TO
MATCH MOTOR N"ME~TE
----_._----------
--.-._---------_._-
Tr'oubleshooting
1. Check all wiring connections to ensure they are
2. Verify AC line voltage
3. Verify24V AC is present at the 24V and COM
4. Measure DC voltage between the 0-10V and COM
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fACTORY' WIRING
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F1ElO WIRrNC
VARIOo~
• Two Speed
correct and secure. '
,S
present at the motor and
2~speed control.,
termin~lIsof the "Motor" terminal block.
terminals of the "Motor" terminal block. This voltage
should match the dial position ot the active dial.
a:, If using dry contact input - ensure contact closure
is connecting the proper terminals.
b. If using AC digital input - disconnect connector
trom2-speedcontrol
and measure voltage
between L1 and Neutral or L2 and Neutral.
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