Lochinvar 999 - 750, 399 Models, Wiring Diagram, A990,000, Control Box Connections, Connector

CONTROL BOX CONNECTIONS

WIRING BOX

B

-

+

F1

F

CONNECTOR

SENSOR

C

BK

R/W

BR/W

5

GY

S1

F2

BK/

R

T

AC POWER

A

CONNECTOR

W

TO

1

4

7

10

13

BK

4

LINE

-

W

O/

T

PR/BK

3

LWCO

B

2

5

8

11

14

CONNECTOR

BR/W

GY

NEU

+

BK

K

R/

3

6

9

12

15

PR

W

2

3

1

1

2

3

4

BR

4

5

6

GY

1

S2/FS

PR 6

BK

BK

5

4

BR

BL/

1

2

3

Y

BL

P

ELECTRONIC

W

W

9

7

BK

BK

G

W

BK/

GY

11

Y

R/O

PR

O/

P

W

CONTROLLER

O

10

TH

BL/

BK

1

2

3

4

P

9

PI

BK

5

4 2 6

1 3 9 8 7

12 1115

14 13 10

BL

Y

8

24COM

BL

PR

R/W R/W O/W O/BK R/BK R/BK O

TH1

BL/W

7

RESET

O/BK

BR

BL

T

4

PS

BL

6

24VAC

LIMITS

R

5

MV

24

23

22

21

20

19

18

17

16

15

14

13

3

IGNITION

LINE

G

M/S

MODULE

T

2

Y n/a

n/a

W BR PR BR/W PR/

BK T

R/O

R

Y

PR/

1

FF

#1

12

9

8

7

6

5

4

3

2

1

BK

NEUTRAL

T

ALARM

W

W

BK

-24V COM

DISPLAY BOARD

24V

GROUND

120V

IGN1 12

GY

G

GY/W

IGN2

1

IGN1 11

GY

STG #1

IGN2

2

GY/W

10

P

STG BK

BK

3

P1 9

R

P2

4

P

S1 8

R

TH2

9

8

#2

/W

1

4

7

RUNTIME STG 1

CHASSIS

24VAC XFMR.

S4

6

R/W

S2+

6

BK

R/BK

S3

5

R/O

S2

7

R/BK

FF

R/BK

RELAYBOARD

BK

R

5

5

24V Y

STG #3

STG

1

R/W

7

S2- 5

W

7

G

2

8

GROUND

S2+

8

BK

ALR 4

PR/BK

6

G

Y

S2-

9

W

RST1 3

BL/W

5

G

3

6

9

P

RST2 10

+24 2

BL

4

Y

R

24V

BL

COM 1

Y

2

R/O

P

3

R/W

/W

#4

4

4

COMMON

Y

BL

MODELS	WIRING DIAGRAM
	A990,000

69

PR	Y	BL	BK	UNLESS
			PR/
			PR/ BK
3	2	1		CONNECTED
3	2	1
			PR/
			BK
PR Y P		P	Y
		BL	PR/
			BK
Y
			SHRINK
ALARM			TUBING
		FLAME FAIL

ENABLE RELAYENABLE RELAY

24V24V

OPTIONAL

-

BK

Y

3

3

+

F1

R

2

2

BR/

T

T

5 S1

R

1

1

W

GY/W

F2

BK/W

P

BK

4 LINE

-

W

P OPTIONAL

Y

9

7

BL

ADDED

T/W T/W

GY/W

3

S2/FS

+

BK

RUNTIME

6

5

4

BK

2

5

1

24V

O

3

6

Y

W

2

NEU

Y

MONITORING

3

1

ALARM

RELAYS

PR

BL/

1

4

O/W

10

TH

RUNTIME STG 3

J1

1

4

GY/

GY/

11

W

W

RESET

P

9

PI

P

RESET

24 VAC

2

5

Y

8

24COM

15

Y

LWCO

PR

3

6

7

RESET

1

BL

6

24VAC

PR

2

O.C.

T/W

R/O

5

MV

T BR/

BR

T/W

4

PS

14

11

13

PR

3

J2

PR

T

IGNITION

R/W

PR

GND

W

Y

BR

3

8 6

1

5

4

9

7 2

12

10

G

2

M/S

MODULE

PR/

1

FF

#2

R/BK

BL/

BK

O/W

J4

O BK BL

Y

T

W

4

5

GY

GY

6

PRESSURE

GY/

GY/

1

2

3

J 3

W

R

1 4

7 10 13 W

W

3 2 1

SWITCH

G

3

R

PR

T

PROVING

6

5

4

2

5

8

11

14

R

O

Y

RELAY 24V

3

6

9

12

15

BK

CHASSIS GROUND

G

R/O

BK

OPTIONAL

E

IGNITER

D

MAIN UNIT

CONNECTOR

CONNECTOR

BL

CIRCUIT

BREAKER

F

TO

LWCO

BL

TEST

T T

Installation Service

CONNECTION DIAGRAM A LBL20013 REV A

NOTES:

1.MATERIAL: PRESSURE SENSITIVE WHITE NYLON WITH BLACK LETTERING,ADHESIVE GOOD FOR 175°F, NON-WATER SOLUBLE.

2.BACKING: 11.00" H X 17.00" W

and Manual