Multiquip ST2037, ST2038P, ST204B, ST2047 Connecting AC Power to the Control Box, Green, Personnel

ST2037, 47, 47B, 38P, 40T SUB. PUMP— CONTROL BOX INSTALLATION

Connecting AC Power to the Control Box

1.The AC power cord (input) should have three wires. Each wire is color coded. The colors are WHITE, BLACK and

GREEN.

2.Remove the AC input connector housing from the control box, then route the power cord through the cable gland on the control box.

3.Connect the AC power cord to the contactor as shown in Figure 7 and Table 6.

TABLE 6. AC INPUT POWER

CONNECTIONS TO CONTACTORS

CABLE WIRE COLOR	CONTACTOR
BLACK	L1
WHITE	L2

2.Remove the pump AC input connector housing from the control box, then route the power cord through the cable gland on the control box.

3.Connect the pump power cord to the contactor as shown in Figure 7 and Table 7.

TABLE 7. AC OUTPUT POWER

CONNECTIONS TO PUMP

CABLE WIRE COLOR	CONTACTOR
BLACK	T1
WHITE	T2
GREEN	GROUND

GREEN GROUND

3. Tighten the connector housing to ensure a tight fit between

the power cord and the connector body. This will prevent

NOTE

Turning On The Pump

Electrical connections to the power source should only be performed by a licensed electrician or qualified

personnel.

the cable from pulling out of the terminal block and also

prevent moisture from entering the control box.

Itisrecommendedthatthepowerbeing supplied to the control box ALWAYS

NOTE be connected to a circuit breaker or a quick disconnect switch. This safetyfeatureallowsforquickremoval of power from the control box in the event of an emergency.

4.Connect the other end of the AC power cord to the voltage source. Remember to provide a means of disconnecting the power from the control box (circuit breaker or quick disconnect switch). Also make sure to provide a good earth ground to the control box.

Connecting AC Power to the Pump

1.AC power is transferred to the pump via a contactor. The coil of the contactor is energized or de-energized by the opening and closing of the float switch contacts.The power cord should have three wires. Each wire is color coded. The colors are WHITE, BLACK and GREEN.

1.If all of the pump's electrical requirements have been met, placethecircuitbreakerorpowerON/OFFswitchintheON position.

2.The CB3 control box has an operation switch located on thefrontcover.Thisswitchhas3positions, AUTO,MANUAL and OFF. The AUTO position allows the pump to run in an un-attended mode.The MANUAL position will let the pump run without the float switches controlling the pump. When in the manual mode be careful not to let the pump run dry. Severe damage to the pump may occur if it is allowed to run dry.NEVER let the pump run dry.

3.Place the operation switch in the AUTO position. The AC power indicator lamp should be lit (ON).

4.Wait a few seconds and water should begin to flow from the discharge hose.

5.If water is not flowing from the discharge hose or not flowing freely after a few minutes, remove the power from the pump and check the system for leaks.

6.To stop the pump from pumping, place the operation switch in the OFF position.

ST2037,47, 47B, 38P, 40T SUB. PUMPS — OPERATION AND PARTS MANUAL — REV. #3 (06/15/10) — PAGE 17