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Rouchon Industries, Inc., dbA Swiftech™ – 3700 Industry Avenue, Suite 104, Lakewood, CA 90712, USA – T (562) 595-8009 – F (562) 595-8769 

– All content Copyright Swiftech 2006 – Last edited 08-21-06-ubject to revision without notice

 

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1. General 

Use 

The MCP355™ pump is a 
magnetically driven centrifugal pump 
featuring a 12 V DC brushless motor.  
It requires no maintenance when used 
with de-mineralized water and the 
appropriate anti-fungal additives. We 
recommend using 5% Swiftech’s 
HydrX

 as an additive. The pump is 

designed to be connected to your 
computer power supply using the 
standard Molex 4 pin connectors. 
 
The pump features a second wire 
equipped with a 3-pin connector 
designed to connect to a motherboard 
fan header, and to report the impeller 
rotational speed (RPM sensor). 
 
The MCP355™ pump is not 
submersible. 

2. Physical 

installation 

‰

 

Determine the best location for 
your pump by observing how the 
tubing will be routed to the rest of 
the circuit. Sharp bends in the 
tubing should always be avoided 
to prevent kinks, which will 
reduce or completely prevent 
flow of the cooling fluid. 

‰

 

In general, we recommend 
installation of the pump at the 
bottom of the chassis. 

‰

 

The base of the pump features a 
soft neoprene pad coated with 
strong adhesive material. Once 
an appropriate location for the 
pump has been determined, 
simply peel-off the pad’s 
protective paper, and press the 
pump against the chassis 
surface. The surface should be 
clean, and non greasy. Screws & 
grommets are also provided for 
permanent installation, and 
require drilling holes in the 
chassis (see permanent 
installation page 2). 

3. 

Pump operating precautions: 

The MCP355™ pump should never 
be run dry, even for a quick test

You should always prime the pump 
with fluid before you start operating it 
(see warranty note *). 

With filled 

lines, turn the inlet/outlets upward 
to ensure there is no air bubble in 
the impeller

 

Use of coloring die or fluorescent 
additives

 containing particulate fillers 

will cause excessive wear to the 
pump’s impeller bearing (see warranty 
note **).

 

 

2.4"

2.4"

.7

2.52"

3/8" Barbs

1.7"

.25"

neoprene sponge

pad

DISCHARGE

INLET

3

°

3.4"

1.00"

 

 

 

Do not utilize small diameter or flow restrictive fittings in the pump inlet line. Minimum line inner diameter is 3/8”.

 

An example would be 

a reservoir with ¼” fittings. This may cause the pump impeller to cavitate, lose prime, stop pumping and damage the pump (see warranty note 
***).

 

 
 

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