Gorman-Rupp Pumps SF4A-X 1531245 and up - Manual (Page 14)

OM-06629 SF SERIES X‐PROOF PUMPS
PAGE B - 5 INSTALLATION
If the test circuit does not close, there is a defect in
the cable or motor which must be corrected.
Control Box Connections
The motor powering this pump is ap­
proved by both CSA and FM for Class 1,
Division 1, Groups C and D environ­
ments. Any liquid level devices used
with the pump must be intrinsically safe
for use in these environments.
Any control box used to operate the
pump must meet all applicable local
and national codes for the application. If
the control box is to be installed in an ex­
plosive environment, it must be a Nema
7 rating or better. If a non‐explosion
proof control box is used, it must be lo­
cated outside the explosive environ­
ment. Improper location of a non‐explo­
sion proof control box could result in de­
struction of equipment, injury, or death
to personnel.
This pump is shipped completely wired for the volt­
age shown on the nameplate and is ready for op­
eration through an approved control box.
Ground the control box in accordance with the in­
structions accompanying it.
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 Figure 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-2 and connect the pump control cable to
the control box.
Figure B-2. Control Cable Connections
The thermal protection contacts will auto­
matically re‐close 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.