Lochinvar 065, 495 Main Unit - Gas Valves - Blower Pressure Switch, Operator, CN7 OPERATOR

WIRING DIAGRAMS - MAIN UNIT CONNECTIONS MODELS 495,000 - 745,000 BTU/HR (CONTINUED)

10	13	1	4	7	10	13
11	14	2	5	8	11	14
12	15	3	6	9	12	15
						G

		CHASSIS GROUND		G		120VAC
	1	BK		BK	W	SUPPLY
E
	2	W	SPLICE	W		W	120VA
							C
				BK		BK
							PUMP
		Y	SPLICE	Y

SPLICE5

3

2

1

F

9	12	15		Y
8	11	14	R/O
7	10	13	R	SPLICE

						T
					O
			GY
GY
							PV MV/PV MV
		BURNER		G
	GROUND
						VALVE #1

HOT SURFACE IGNITER

HI-LOW FIRE

FULL FIRE

					Y
		PR
				LOW AIR
COM						PV MV/PV MV
			INDICATOR
AIR PRESSURE					VALVE #2
	SWITCH

BLOWER
BR	GR
W

GROUND

MAIN UNIT - GAS VALVES - BLOWER PRESSURE SWITCH

			Y	BL
9	8	6		24 VAC
SPLICE	SPLICE	SPLICE

BK

LOW VOLTAGE

XFMR.

1	4	7	10
2	5	8	11
3	6	9	12

NEL

	O							BK
	O			3	6	9	12
	Y			2	5	8	11
	BL			1	4	7	10	A
	R/O
	O					O	R	BK
	OA SENSOR
	CN7 OPERATOR							CN3
	CN8	CN1					2	INLET
							1	PROBE
		SENSOR
4		ON	ENABLE					CN4
3	SHUTDOWN		DISABLE				CN2	PR
		O.A.SHUTDOWN
								CN5
2
1								SYS/
	O.A. MAX.		RATIO					TANK
								PR
	OPTIONAL I/O RESET
								CN6
CN1
								CN9
	OFF						TO
		DIFFERENTIAL		HIGH-FIRE			CN9
	SETPOINT			OFFSET

OPERATOR

W	3 4		C
	2
	1		120VAC
BR			POWER
			BK
6	BK 1		1
2
	BK	2	W
			2
4
			BK
LOUVER/DAMPER
120 VAC RELAY
OPTION BOX "A"			TO LOUVER OR
			DAMPER
3	4		C

W2 5

1 6 9

SILENCE ALARM BELL

G

BL BR

BR W

Y

TEST NORMALLY

CLOSED

TT

		O/W
		NC
NO	NO
C	C	C
		O
PR		PR

Y

`

SILENCE ALARM BELL

								LWCO	~~~~ ~~~~
		BR/W				BR		PROBE
							T
				BR
	1		3				W
				3		1		CONTACTS
BR			6				R		FOR
G	4	5		6	5	4	R	ALARM
									O BL
BR
O	7	8	9	9	8	7	O
PR				PR			P		"R1"
									120VAC

RESETBL

							TEST
PR
PR
	O.C.						T
J1			CONTROL
		VAC24				J3	Y
					6	3
				O	5	2
					4	1	BR/W
		J2
1	2	3		J4	P
P			GND

O

G

SPLICE

BR/W

BR

G

BR

O

				~~~~
				~~~~
				LWCO	PROBE	CONTACTS
	BR/W					FOR
					T	LWCO ALARM
T
1		3	3		1	R R
4	5	6	6	5	4
7	8			8	7	O

	LOUVER/DAMPER
T	120 VAC RELAY
	6	W
	2	BK
		BK
	4
	BR
		SPLICE

P

POWER

LWCO

P

P

Y

"C"

ALARM

BR/W

CONTACTS

120VAC

P

LOUVER/DAMPER

24 VAC

BR/W

120 VAC RELAY

LWCO INDICATOR

POWER

RELAY

1	1		6	G	6
		BK				BK	1	1	BK
		W		2	2
2	2								W
		BK				BK	2	2
										"R1"
									BK
			4	G	4
				BR		BR				O
		TO LOUVER OR							TO LOUVER OR	BL
			OPTION BOX "B"
		DAMPER							DAMPER

WIRING CONNECTIONS DIAGRAM LBL20007 REV A

49