Swiftech MCP355 User Manual

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 **).

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
***).

Rouchon Industries, Inc., dbA Swiftech™ – 3700 Industry Avenue, Suite 104, Lakewood, CA 90712, USA – T [phone] – F [phone]

– All content Copyright Swiftech 2006 – Last edited 08-21-06-ubject to revision without notice - 1 of 2 -

neoprene sponge

3/8" Barbs

.25"
pad

DISCHARGE

2.4"

INLET

1.7"

.7

1.00"

3.4"

2.52"

2.4"

3

°

Connecting the pump to the circuit:

The pump’s inlet and outlet are 3/8” in outside diameter. Use with 3/8” ID (1/2” OD) tubing, or 10mm ID (12mm OD) for Europe.

4. Performance & Specifications
Nominal voltage 12 V DC

Operating voltage range 8 to 13.2 VDC
Minimum starting voltage 9 V DC

Nominal power (@ 12 V) 18 W

Nominal current@ 12v 1.46 amps
Nominal discharge @ 12v ~120 GPH (454 LPH)

Nominal head @ 12 v 20.2 ft (6.1mm)
Connection size 3/8” barbs (10mm)
Maximum pressure 22 PSI (1.5 BAR)

Temperature range Up to 140°F (60°C)
Electrical connector Molex 4 pin

Weight 7.3 oz (207 gr.)
Our noise measurement

(non lab environment)

Motor type

30 ~ 32 dBA in a quiet
room @ 2’

Electronically
commutated, brushless
DC, spherical motor

MTBF (Mean Time between
failures)

5. Permanent installation to the chassis, and exploded view

Drill two 0.312” (8mm) holes into panel, 2.52” (64mm) apart. Snap grommet into each
hole. Tighten the provided screws until the pump neoprene pad is slightly and evenly
compressed by approximately 1/8” (2~3mm) or less.

DISCLAIMER: Swiftech assumes no liability whatsoever, expressed or implied, for the use of this product, and more specifically for any, and
all damages caused by the use of this product to any other devices in a personal computer, whether due to product failure, leak, electrical
shorts, and or electro-magnetic emissions.
WARRANTY: This product is guaranteed for a period of 24 months from date of purchase for defects in material, and workmanship.
Guarantee consists of replacing defective parts with new or reconditioned parts. Guarantee is considered void in case of improper use
(*)(**)(***), handling or negligence on the part of user. Original invoice showing date and place of purchase is required for exercise of the
warranty.

EXCESSIVE WEAR DUE TO INNAPROPRIATE FLUIDS. (***) EXCESSIVE RESTRICTION TO THE PUMP’S INLET

(*) WARNING: DO NOT ATTEMPT TO RUN THIS PUMP DRY. THIS WILL CAUSE IMMEDIATE AND PERMANENT DAMAGE TO THE PUMP. (**)

50,000 hours

Rouchon Industries, Inc., dbA Swiftech™ –3700 Industry avenue, Suite 104, Lakewood, CA 90712, USA – T [phone] – F (562)

595-8769 – All content Copyright Swiftech 2006 – Last edited 08-21-06 – Subject to revision without notice - 2 of 2 -