Sterling 882.00249.00 manual Typical 24-Volt Junction Box Wiring Diagram

Figure 1: Typical 24-Volt Junction Box Wiring Diagram

GRD

					FROM CONTROLLER OUTPUT
(NEUTRAL)/(+24VDC)					FOR VACUUM SOLENOID
					TO TERMINAL A1 (NEUTRAL)/(+24 VDC)
					ON MOTOR STARTER (M)
L1		L2		L3	FROM CONTROLLER OUTPUT
					FOR BLOWBACK SOLENOID
		A1
1	3			5
	L2			L3	13
L1
					M
A09
T1	T2			T3	14
2	4			6
			A2
	A2
J1		TEST		RESET
		96	TRIPPED
95			97		98
FROM CONTROLLER OUTPUT					OL
FOR PUMP MOTOR STARTER
2	T	4	T	6	T
	1		2		3
T1		T2			T3
TO MOTOR
(MTR)

(115VAC)/(0VDC)

VS

TO CONTROLLER INPUT FOR

PUMP HIGH-VACUUM

LEGEND	SUBPANEL LAYOUT AND CONNECTION DIAGRAM	A0544675
	(115V AC AND 24V DC)

FIELD WIRING

INTERNAL WIRING

L1

WIRE LUG

L2

L3

GRD

(115V AC)

FROM CONTROLLER OUTPUT

FOR MOTOR STARTER

FROM CONTROLLER OUTPUT

FOR VACUUM PUMP SOLENOID

FROM CONTROLLER OUTPUT

FOR PUMP BLOWBACK SOLENOID

SOL A/B

KAY VALVE

LOCATED ON

PUMP

VACUUM

COMMON

TO

JUNCTION BLOWBACK

BOX

TO UPPER VALVE

PROCESS AIR

CONNECTION

3 PHASE / 4 WIRE SERVICE AND FUSED DISCONNECT SWITCH TO BE PROVIDED BY CUSTOMER

DISC

FU		L1		M	OL	T1
FU		L2				T2
FU		L3				T3
	POWER WIRING
	1PS
		N. O.
	1M	J1
				1M
96		95	A2		A1

1SOL

1SOL

CONTROL WIRING

MTR 5 HP PUMP

TO CONTROLLER INPUT FOR PUMP HIGH VACUUM

(NEUTRAL)

VACUUM PUMP

MOTOR STARTER

VACUUM

SOLENOID ON PUMP

BLOWBACK SOLENOID ON PUMP

2–Pump 12-Station Controllers Chapter 3: Installation 16