Koolance CTR-SPD24X2-R User Manual
1
CAUTION: Improperly connecting the speed controller can damage it, the
pump, or the power supply. Ensure that total device load does not exceed the
!
maximum rating of the individual controller. If the speed controller increases
voltage, ensure that the connected device will safely accept the higher voltage.
CTR-SPD10/24/X2 Installation Guide v 1.0
Koolance speed controllers use voltage control to adjust Koolance pump or fan
speeds. Some models step-up voltage for extra power to devices which allow it.
Never exceed the maximum current rating for the speed controller (usually 3A per
output, depending on the model). Also, confirm the maximum voltage of your device.
Connecting a 12V-only pump to a 24V speed controller can damage the pump.
Single Pump Controller Dual Pump Controller
2
Plug Adapter
If your Koolance pump has a 4-pin Molex connector,
you must use the plug adapter included with your
speed controller.
CAUTION: Your power supply will power
the pump through the controller. DO
!
NOT connect the power supply directly
Female 4-pin Molex
(DO NOT USE)
Connect to
Pump
to the plug adapter.
Pump tachometer signals are not used by the
speed controller. Also note if your pump has an
integrated speed knob, it should be left on the
maximum setting when adjusting speed via the
Koolance controller.
Pumps with built-in control should
be left on maximum speed
Connect the pump to the 4-pin plug adapter. Connect the plug adapter’s 3-pin to
the speed controller’s “Power Out”. Connect the power supply’s 4-pin Molex plug
to the speed controller’s “Power In” connection.
Pump
Power Supply
Power In
(PSU 12VDC)
Power Out
(Pump)
Power In
(PSU 12VDC)
Power Out
(Pump)
If your Koolance pump has a 3-pin power connector, plug it directly into the speed
controller’s “Power Out” connection. Connect the power supply’s 4-pin Molex plug
to the speed controller’s “Power In” connection.
Connect 3-Pin Pump Connect 4-Pin Power
Plug Adapter
Connect 4-Pin Pump to Plug Adapter
Plug Adapter
Connect 3-Pin Plug Adapter to Controller
For dual speed controllers, each
pump will require a power supply
connection.
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