Crane DEMING 7365N-X54-95-30N, Installation And Operation Manual

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B-3) Liquid Level Controls: 

It is recommended to use a liquid level control system 

that allows the on and off point to be separated by at least 

twelve inches. An additional set point (lag point) should 

be incorporated with an alternator switching system for 

a duplex (two pump) station. A high level alarm may be 

required to alert maintenance personnel that there is a 

high water situation in the wet well should the output of the 

pump station drop below the inflow rate. A low level cut off 

may be installed to provide system shutdown if the main 

level control system malfunctions. The off point should be 

positioned so that the liquid level never drops below the 

minimum continuous duty point for the pump shown in 

Figure 1.

B-4.1) Electrical Connections:

WARNING! - All model pumps and 

control panels must be properly 

grounded per the NATIONAL 

ELECTRIC CODE or CANADIAN 

ELECTRIC CODE, State, Province 

and local codes. Improper 

grounding voids warranty.

B-4) Power/Control Cord:

The cord assembly mounted to the pump must not be 

modified in any way except for shortening to a specific 

application. Any splice between the pump and the control 

panel must be made in accordance with all applicable 

electric codes. It is recommended that a junction box (if 

used) be mounted outside the sump or be of at least Nema 

6 or 6P construction with NEMA 6 or 6P watertight cord 

grips if located within the wet well. A water and vapor tight 

seal fitting 

MUST

 be used in conduit leaving the wet well 

to prevent moisture and gases from reaching the control 

panel. Prior to installation, the pump power cable should be 

inspected for nicks or damage. If damaged, the cord should 

be replaced before installation. 

Install the cord assembly o-ring onto the cord assembly 

as shown in Figure 2. Align the hole in the cord assembly 

with the alignment pin in the motor cap. Lower the cord 

assembly into the bore of the motor cap taking care to keep 

the pins aligned. Push the cord assembly into the motor 

housing until fully engaged. Install the four 12mm socket 

head cap scews through the cord assembly into the motor 

cap. Slowly tighten the four screws alternating in a cross 

pattern until the cord assembly is drawn down flush to the 

motor cap. The screws should then be torqued to 35 ft. lbs.

CORD CLAMPING PLATE SHOULD BE DRAWN METAL 

TO METAL (35 FT/LBS BOLT TORQUE). IF A GAP 

EXISTS CONTINUE TO TIGHTEN BOLTS. DO NOT USE 

ANY TYPE OF SEALANT OR GREASE ON THE CORD 

ENTRY.

DO NOT USE THE POWER CORD TO LIFT PUMP.

NOTE: The White Wire Is Not A Neutral Or Ground 

Lead. The Black, White And Red Leads Are Power 

Carrying Conductors. The Green Lead Is For 

Connection To Ground.

B-4.1) Electrical Connections:

When the electrical connections are made, the lead wires 

from the power cable should be stripped so that the ground 

wire is at least two inches longer than the power leads. 

This will ensure that if the cable is inadvertently pulled out 

of the connection point, the ground wire will be the last lead 

to break the circuit.

B-4.2) Wire Size:

If additional cable is required consult a qualified electrician 

for proper wire size. Voltage drop due to wire resistance 

between the pump and power connection point should be 

limited to 3% when additional cable is added.

WARRANTY NOTE: 

Both the temperature sensor and moisture 

detection system must be connected to the 

motor circuitry such that the motor will be de-

energized or sound alarm if excessive motor 

temperatures are reached and/or if water is 

detected in the seal chamber and/or motor 

chamber. Failure to have the above mentioned 

systems installed and operative, nullifies 

warranty

FIGURE 2