User Manual

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ATX Shutdown Relay

Connect the female ATX lead to the motherboard’s

power switch connection (usually marked “PWR”,

“PWRSW”, “PWSW”, or “PWBT”). This is the

connection that would normally receive the chassis

power button directly.

To Motherboard

Chassis Power

Button

From

Koolance

Unit

There is no polarity orientation with the ATX

lead. For computer use, connect the male

shutdown lead from the Koolance unit to your

computer’s front chassis power button.

The ATX lead is responsible for sending the shutdown signal if any sensor

reaches the preset temperature (detailed later). This can be configured as

NC (normally closed) or NO (normally open) by attaching the two-pin wire

to the corresponding pins. For computers, use “NO” (normally open).

To Motherboard

The rear of the unit accepts various connections to integrate with your cooling system. The

temperature sensors may come pre-connected. If not, connect them per the diagram below:

Power Connection

Plug the included power harness into

the location on the rear of the unit

marked “Power”. To this, connect a 12

Volt 4-pin Molex plug from your power

supply.

Fan Connection

This unit has three connections to power radiator fans. Multiple fans can be combined into

a single plug. (A fan wiring harness is optionally available from Koolance).

CAUTION: The total combined amperage of all fans connected to the unit can

not exceed 4.5A. The maximum load on a single fan header is 2.0A.

Flow Meter Connection

The cooling system can show values for one Koolance flow meter (sold separately). Connect

a flow meter to the appropriately labeled plug. (Note: INS-FM18 and INS-FM19 should

connect to the plug labeled “INS-FM17”.)

CTR-CD1224 User Manual v 1.0

Pump Connection and Voltage Jumper

Plug the included pump wiring harness into the rear

“Pump” connector. Different plugs are provided to

connect a single 12 Volt or 24 Volt DC pump. (Max.

output power = 36W @12V, 50W @24V.) Do not

connect more than one pump.

CAUTION: Do not power 12V pumps at the 24V setting! This

can permanently damage the pump.

TEMP: Temperature sensors

shown on the front display

POWER: Connection from

power supply, 12VDC

FAN: Radiator fan connections

(2.0A max per plug, 4.5A total)

ATX: Lead for

power shut-

down feature

PUMP:

External

pump

INS-FM17/INS-FM16:

Connect an optional flow

meter to display flow rate

ON/SYNC/OFF:

Adjusts LED lighting

of INS-FM16 flow

meter

Pump Voltage Jumper: Configure the pump

output for a maximum of 12-Volts or 24-Volts.

Misconfiguration could damage the pump!

Shutdown Relay: Configure the safety

shutdown relay (labeled “ATX”) as Normally-

Open (NO) or Normally-Closed (NC).

The pump voltage jumper

should be set for the maximum

voltage capability of the pump,

either 12V or 24V.

Summary of content (4 pages)

PAGE 1
2 CTR-CD1224 User Manual v 1.0 ATX Shutdown Relay The rear of the unit accepts various connections to integrate with your cooling system. The temperature sensors may come pre-connected. If not, connect them per the diagram below: Pump Voltage Jumper: Configure the pump output for a maximum of 12-Volts or 24-Volts. Misconfiguration could damage the pump! Shutdown Relay: Configure the safety shutdown relay (labeled “ATX”) as NormallyOpen (NO) or Normally-Closed (NC).
PAGE 2
3 4 ! CAUTION: This product allows full user control of hardware safety settings, such as audio alarm, shutdown, and pump speed. Please be sure to configure your Display Panel properly, or damage to your computer, data, and/or equipment could result. The Koolance display panel allows control and monitoring of various aspects of a cooling system. 5 buttons are used, with directional arrows to navigate or change settings, and a center button to enter/exit.
PAGE 3
5 6 Instead of manual speeds, fans can also be set to automatic. This is highly recommended, since speeds will change based on temperature sensor feedback. This is a good way to keep noise levels to a minimum while allowing the cooling system to respond to temperature. To set a fan channel to automatic, press ▲ past 100% until “AUTO” is shown: ALL FANS AUTO • INS-FM16: change to “FM-16” • INS-FM17, INS-FM17N, INS-FM18, INS-FM19: change to “FM-17” Press ◙ to move to the next option.
PAGE 4
7 Press ▼ or ▲ to change what this line will display among the options described earlier. Press ◙ to move to line 2, and similarly use ▼ or ▲. Press ◙ again to exit. If “CYCLIC” is chosen from the DISPLAY SET menu, multiple values will be rotated through the front display. The first option is whether these values will cycle vertically or horizontally through the display: CYCLIC VERT HORI: Scroll values vertically or horizontally The first option, “VERT”, will flash.