ITT GT20, GT10, GT30, GT15, GT07 specifications Rotation, Operation Wiring and Grounding, Maintenance

DISCHARGE

•Install a tee at the discharge connection of the pump. The top opening of the tee is required for initial priming. See Figure 1.

PRIMING OPENING

FUSED OR
CIRCUIT BREAKER
DISCONNECT MEANS	UNION

SUCTION

Rotation

NOTICE: INCORRECT ROTATION MAY CAUSE DAMAGE TO THE PUMP AND VOIDS THE WARRANTY.

•Correct rotation is right hand, CLOCKWISE when viewed from the motor end.

•Three phase unit rotation may be checked by removing motor end cap or plug and observing rotation of motor shaft. To reverse rotation, reverse any two of the three motor leads.

Operation

Figure 1

Wiring and Grounding

WARNING

OPERATION WITHOUT PRIME, OR AGAINST A CLOSED DISCHARGE VALVE, CAN GENERATE HOT WATER OR STEAM CAUSING

WARNING

Install, ground and wire according to local and National Electrical Code requirements.

Install an all leg electrical power disconnect switch near the

Extreme heat can cause personal injury or property damage

INJURY OR PROPERTY DAMAGE.

NOTICE: DO NOT OPERATE PUMP WITHOUT PRIME OR SEAL DAMAGE WILL RESULT.

Hazardous voltage can shock, burn or cause death.

pump.

Disconnect electrical power before installing or servicing pump.

•Prime pump by filling pump and piping through opening in top of tee with clean water. See Figure 1.

•Install pipe plug in top of tee using TeflonTM tape or equivalent.

Electrical supply MUST match pump’s nameplate specification. Incorrect voltage can cause fire or damage to the motor and voids warranty.

Motors without built-in protection MUST be provided with contactors and thermal overloads for single phase motors, or starters with heaters for three phase motors. See motor nameplate.

• Follow motor manufacturer’s wiring diagram on the

motor nameplate or terminal cover carefully.

NOTICE: IF PUMP IS DRAINED OR SHUT OFF DURING PRIMING PERIOD, CASING MUST BE REFILLED BEFORE RESTARTING PUMP.

•Start the pump and partially open discharge valve and wait for system pressure to stabilize. If system pressure is surging, or prolonged pressure drop is experienced, the system may not be completely primed.

Maintenance

• Use only copper wire to motor and ground. The ground

wire MUST be at least as large as the wire to the motor.

Wires should be color coded for ease of maintenance.

RECOMMENDED MINIMUM WIRE SIZE

			Distance from Service Entrance to Motor
HP	50 Ft. (15 m)		100 Ft. (30 m)		150 Ft. (46 m)		200 Ft. (61 m)
	115 V	230 V	115 V	230 V	115 V	230 V	115 V	230 V
3⁄4	12	14	10	14	8	14	6	12

WARNING

Hazardous voltage can shock, burn or cause death.

FAILURE TO DISCONNECT ELECTRICAL POWER BEFORE ATTEMPTING ANY MAINTENANCE CAN CAUSE SHOCK, BURNS OR DEATH.

•No lubrication is required on pump. For motor lubrication, refer to and follow manufacturer’s instructions.

1		12	14	8	14	8	12	6	12
	11⁄2	10	14	8	14	–	12	–	10
2		10	14	8	14	–	12	–	10
3		–	12	–	12	–	10	–	10
			FAILURE TO PERMANENTLY
	WARNING
			GROUND THE PUMP, MOTOR AND
	Hazardous
			CONTROLS BEFORE CONNECTING
	voltage
			TO ELECTRICAL POWER CAN
			CAUSE SHOCK, BURNS, OR DEATH.

SEASONAL SERVICE

•To REMOVE pump from service, remove all drain plugs and drain all piping.

•To RETURN pump to service, replace all drain plugs using TeflonTM tape or equivalent.

•Reconnect suction line if removed, examine union and repair if necessary.

•Reprime and operate pump following all instructions and warnings in the “OPERATION” section of manual.

3