Gorman-rupp-pumps SFV4E 1491311 and up Manual de usuario descargar pdf (Pagina 12)

OM-06431 SF SERIES

PAGE B - 4 INSTALLATION

Ground the pump to the control box using the pow

er cable ground(s) and ground check wire (if so

equipped). Secure the ground wire(s) and ground

check wire (if so equipped) to the grounding lug(s)

inside the control box to ensure a thorough ground

for the pump.

Ground the pump using the power cable

ground wire(s) before applying line po

tential. Failure to properly ground the

pump could result in damage to the

pump or control and/or injury or death to

personnel.

Refer to Figures B-1 and connect the pump motor

cable to the control box.

Figure B-1. Three Phase Power

Cable Connections

Control leads P1 and P2 provide the motor with

thermal protection. Control leads W1 and W2 pro

vide the motor with moisture protection. Refer to

Figure B-3 and connect the pump control cable to

the control box.

Figure B-2. Control Cable Connections

The thermal protection contacts will auto

matically reclose when the motor cools to

the established safe operating tempera

ture. Whenever automatic restarting is not

desirable, connect only to controls which

are wired for manual restart.

Refer to the appropriate wiring diagram accompa

nying the control box when making electrical con

nections.

Liquid Level Devices

Optional controls available from Gorman‐Rupp

may provide a means to automatically regulate the

liquid level. These control boxes may be con

nected to the following sensing devices which per

form either filling or dewatering functions (see Fi

gure B-3).

The internal wiring of the sensing devices

are different for filling and dewatering func

tions. Be sure to follow the instructions in

cluded with the option before making con

nections.

S Diaphragm Type: two fixed‐position sen

sors (upper and lower) each contain a dia

phragm which flexes with changes in liquid

level, thus activating an enclosed miniature

switch.

S Bulb (Float) Type: a bulb raises or lowers

(floats) with the liquid level, thus activating

an enclosed miniature switch.

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Gorman-rupp-pumps SFV4E 1491311 and up Manual de usuario Pagina 12

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