Mody Pumps MHMXP 6 X 12 - Manual (Page 6)

MOTOR PROTECTION
IT IS ESSENTIAL THAT THE PUMP BE USED WITH A STARTER AND PREFERABLY A PANEL
BOARD. CONTROL PANELS INCORPORATING ALL PROTECTIVE DEVICES ARE READILY
AVAILABLE. PLEASE CONTACT YOUR NEAREST DISTRIBUTOR. THE OVERLOAD RELAY IN THE
STARTER SHOULD BE CHOSEN ACCORDINGLY AND AMPERES SET AT THE FULL LOAD SETTING
FOR THE PARTICULAR MODEL OF THE PUMP.
IMPORTANT.
THE PUMP IS SUPPLIED WITH TWO CABLES:
• RED/WHITE/BLACK ARE THE POWER CORES.
• GREEN CORE IS FOR EARTHING.
• TRAILING CABLE - BLACK (P1) & WHITE (P2) ARE THERMALS AND RED (W1) & ORANGE
(W2) ARE MOISTURE LEADS
PLEASE SEE ENCLOSED WIRING INFORMATION ON MOTOR AND THERMAL/MOISTURE
PROTECTION.
THE SUBMERSIBLE MOISTURE PROTECTION SYSTEM CONSISTS ON THE NON-WICKING CABLE
CAP ASSEMBLY AND THE DUAL MOISTURE SENSING PROBES. THE CABLE CAP ASSEMBLY
PREVENTS MOISTURE FROM WICKING THROUGH THE CABLE ASSEMBLY EVEN WHEN THE CABLE
JACKET HAS BEEN PUNCTURED. POWER AND CONTROL CONDUCTORS ARE STRIPPED BARE AND
TERMINATED IN BUTT CONNECTORS. THE CABLE AND BUTT CONNECTOR ASSEMBLIES ARE
ENCAPSULATED IN EPOXY ASSURING A POSITIVE BOND TO THE CONDUCTORS.
DUAL MOISTURE SENSING PROBES EXTEND INTO THE OIL CHAMBER LOCATED BETWEEN THE
DOUBLE MECHANICAL SEALS. SHOULD THE OUTER SEAL FAIL, WATER WILL ENTER THE OIL
CHAMBER THROUGH THE LABYRINTH SLINGER PATHS AND CREATE A WATER/OIL EMULSION IN
THE OIL CHAMBER. THE PRESENCE OF WATER IN THE OIL CHAMBER INCREASES THE
CONDUCTIVITY SUFfiCIENTLY TO INCREASE CURRENT flOW THROUGH THE PROBE CIRCUIT
WHICH ILLUMINATES A WARNING LIGHT AND ACTIVATES A RELAY TO DE-ENERGIZE THE
MOTOR. THE RELAY IS PURCHASED SEPARATELY. THE MOISTURE DETECTION CONTROL SYSTEM
MUST BE SO CONNECTED FOR THE WARRANTY AND THE FM LISTING TO BE VALID.