Swiftech H20 120 T - Manual (Page 22)

The TEC module is provided with “bare wires” to facilitate installation with screw
type terminals such as featured in the S320-12 power supply
Connect red wire from TEC module to the +V terminal, and black wire to the –V
terminal as shown in figure 5.
A complete installation guide for the S320-12 power supply kit is available here:
http://www.swiftnets.com/products/installationguide_S320-12kit.pdf - This kit
includes a wiring harness and a relay switch to synchronize the power to the
S320-12 with your computer, which is a
highly recommended (read critical
recommendations)
Figure 5
Permanent failure of the Peltier module
Permanent damage to the CPU and/or motherboard
due to excess heat
It is highly recommended to dedicate the auxiliary power
supply for the thermoelectric module to the computer
power-supply, so that the Peltier module will never run by
itself without cooling fluid.
For this purpose, we recommend using the following
accessory, available in our online shopping cart: PRS Kit II.
Includes: Relay Switch Circuit board AC socket, S/S socket
cover, power cord.
This relay switch is rated for 110 to
220~240 volts and up to 50A inrush current. It is suitable for
use with the S-320-12 Meanwell power supply recommended
above.
If you run your computer unattended for extended periods
of time, it is also a good practice to setup an alarm
temperature, which will shut down the computer in case the
CPU overheats. Such alarm/shut down process should be
tested as functional.
WARNING! Wires from the thermoelectric module do get hot
(this is normal). Make sure that the wires do not touch devices
that are heat sensitive, such as vinyl tubes for example. Heat
from the wires may cause the vinyl to deform, and/or burst.
b. Connecting to your computer power supply:
Important Warning: to connect the MCW5002-PT cooler to an ATX
computer power supply, you must carefully consider the existing
requirements of other devices connected on the +12V line. Connecting to
an underpowered unit will definitely damage the power supply.
Minimum requirements for an ATX computer power supply: 36A at +12V in
a typical computer setup.
When you connect the MCW5002-PT
 to an ATX power supply, you need
to cut the wiring to one of the power supply Molex connectors, and use a
different connector between power supply, and thermoelectric. This is
because Molex connectors are not rated for 18Amps current, and may
overheat.
c. Connecting TEC wires to the power supply:
Use the provided euro-style wire connector as shown in fig 6
below, or a similar device with a current rating of at least 25
amps. Connect red wire from TEC module to +12V of P/S
(Yellow wire), and black wire to black wire:
Figure 6
If you need wiring extensions: use 16 gage stranded wire.
Connect the extension to the existing wires with terminal
splices, or solder the butts, and insulate with shrink tubing.
4. Hydraulic Installation
The MCW5002-775T is shipped with ½” barb to 3/8” NPT nylon fittings. These fittings should be installed using Teflon tape or
plumbers “goop”. If fittings need to be replaced for a difference tubing size, do not use brass fittings, because of the galvanic
corrosion that will take place between copper or brass and the MCW5002-PT aluminum housing. Always use nylon fittings.
Inlet and outlet are interchangeable.
Type of Coolant:
For best performance, use 95% distilled water, and 5% Swiftech brand “HydrX” corrosion inhibitor (available here:
http://www.swiftnets.com/store/category.asp?CatID=2 , under the “accessories” section).
In all cases, you must use Distilled water and a corrosion inhibitor with the MCW5002 water-block. Regular automotive
anti-freeze is acceptable. Automotive manufacturers recommend that not less than 25% is used.
NEVER use tap water, even for a short-term test.
Not following the above instructions constitutes misuse (*) of the product, and will void your warranty.
Final inspection: Once the installation is completed, it is always a good idea to test the circuit for leaks, prior to powering up the computer.
Troubleshooting help is available on our web site at
www.swiftnets.com , or by calling customer support at 562-595-8009.
Rouchon Industries, Inc., dbA Swiftech™ – 1703 E. 28 th St, signal Hill, CA 90755, USA – T (562) 595-8009 – F (562) 595-8769 – All content Copyright
Swiftech 2004 – Last edited 12-9-04 – Subject to revision without notice - 22 of 37 -