INSTALLATION INSTRUCTIONS (BELT DRIVEN)
HIGH PRESSURE PUMP
To minimize vibration, it is best to build brackets on the motor itself, similar to alternator brackets. Use
cardboard to construct a pattern first before making these brackets.
The high-pressure pump has a
maximum RPM of 1750.
The recommended working RPM is 1450.
Minimum RPM for ECHO Tec. watermaker models:
200 - 500:
900 RPM
600 - 900:
1050 RPM
1200 - 1500:
1225 RPM
The high-pressure pump can run on lower RPM. This will decrease the specified production only.
Position the high-pressure pump horizontal with the dipstick up. The pump can turn in either direction.
Ensure proper pulley diameter on your engine. The electro magnetic clutch has a pulley diameter of
7”/177mm
.
To determine the proper motor pulley size, use the formula below as a guideline.
PUMP PULLEY DIAMETER
7”/177mm X
RPM PUMP
= MOTOR PULLEY DIAMETER
RPM MOTOR
CAUTION: RE-TIGHTEN ALL FASTENERS AFTER 50 HOURS OF OPERATION AND
CHECK FREQUENTLY FOR BELT TENSION AND CHAFING OF HIGH-PRESSURE
HOSES.
A professional electrician should only do the electrical installation.
Connect the
+
wire of the magnetic clutch to the system switch on the control panel.
Supply 12V DC to the switch. This wire needs to be protected by a 10A fuse.
When the batteries minus are connected to the main engine, an additional –wire is not necessary.
Please seek professional advice when the main engine is isolated from the battery.
Fill the pump with 7.5 oz. / 0.22 ltr. Of SAE 90 non-detergent, non-toxic crankcase oil.
MEMBRANE HOUSING
Mount the high-pressure membrane housing(s) with the provided brackets vertical (with the flow
upwards) or horizontal in a convenient location away from the heat of the engine as close as possible to
the high pressure pump.
The membrane is sealed within its housing by plugs at both ends. Inside is a small amount of
preservative to keep the membrane moist and prevent bacterial growth.
The efficiency of the preservative, under best conditions, is approximately one year.
When all other components and hoses/tubes are completely assembled, remove the caps on the high-
pressure fittings and the sealed tube from the product water outlet on the membrane housing/s and then
finish making all final hose/tube connections. This will insure that the membrane is kept moist.
Summary of Contents for Watermakers 1200-BML-3
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