Lochinvar 402 - 2072 operation manual Connection diagram, Display, Installation & Operation Manual

Installation & Operation Manual

10 Connection diagram

FIELD WIRING

1

+

ALARM

OPT. ALARM HARNESS

LOW VOLT HARNES

TO MONITORING DEVICE

+

CONTACTS

PR

1

2

+

4

PR

DIGITAL HARNESS

TO MONITORING DEVICE

3

RUNTIME

BL

2

+

CONTACTS

5

P

OPEN

4

+

OPEN

WAY-3 VALVE

Y

3

3-WAY

24V

5

CN4

6

P

G

12

VALVE

COMMON

6

+

COM

CLOSE

+

CLOSE

STAGE #1

7

+

S1

BR

1

GY

10

8

7

BR/W

+

S1

BK/W

8

9

7 GY

F2

CONNECT

STAGE #3

12

+

S2

STAGING

9

R/BK

TERMINAL

+

S3

F4

TO

STAGE #2

10

+

S2

R/O

3

8

R

BK

6

11

#19

13

+

S3

T/W

4

10

R/W

P

4

3

W

(LOUVER

STAGE #4

+

BR/W

2

X1

RELAY)

14

S4

Y

5

1 PR

15

+

S4

CN5

11

GY

LOUVERS

M

COM

+

LOUVER PROVINGFIELD

BL

6

19

+

COIL

12

W/BK

PROVE

16

+

SWITCH

LINE

17

+

LOUVER RELAYWIRING

R

18

NEU

20

+

TANK

AQUASTAT

+

AQUASTAT

21

CONTR

CN3

F5

TANK

SENSOR

22

+

TANK

23

+

SENSOR

Y

1

+

SHIELD

CASCADE

6

R/W

BK

24

CN6

BR/W

3

+

SHIELD

UNITS

25

+

A

7

BR

4

26

+

B

FROM

0-10V DC IN

27

+

8

Y/G

GY/W

2

28

+0-10V

BL

4

1

X2

BMS

COMMON

29

+

-BMS IN

9

BL/BK

GY/W

TO

0-10V DC OUT

+

+0-10V

PR

5

30

10

O/R

BMS

COMMON

31

+

-RATE OUT

F6

MOD

+

CN1

32

SHIELD

MODBUS

MODULE

Y

3

BMS

34

+

SHIELD

1

BUS

33

A

MODBUS

R

+

B

2

T

35 CN2

CONNECTIONS

+

POOL

OUTDOOR

4

PR

SAFETY

OUT

SUPPLY BK

DOOR10K

1

+

SENSOR

20K

POOLSUP SENSOR

2

P

R

AIR

3

+

SENSOR

G

2

+

10K

3

PR

X3

10K/20K

10K

SYS SUPPLY

W

4

+

10K 10K

Y

1

5

BK

1

P

POOL/BOILER

10K

+

SYS RETURN

P

2

5

6

W/R

FROM

0-10V DC IN

6

+

SENSOR10K

CN1

X10

PUMP

7

+

0-10V SYS

7

R/BK

X12

OUTPUT

COMMON

+

- PUMP IN

8

BK/R

X9

8

CN2

BOILER/POOL HEATER

SAFETY

10K/20K

G

4

2

BK

4

Y

DISPLAY

OUTLET

W

3

W/BK 2

Y

1

R

W

3

SENSOR

1

INLET

10K

BR

SENSOR

BR

24V COM

MAIN POWER HARNESS

G

Y

S3/S4

BL

1

24V

Y

Y

R/O

4

OPT. MODBUS HARNESS

CONTROLLER

GROUND

2

Y

R/W

5

IND-DHW PUMP

W

XFMR

S1/S2

3

Y

R

BK

1

1 BK

1

6

RELAY COIL

120V 60VA 24V

Y

2

2 Y

BL

P

G 2

3 W

3

Y

4

R

120V

W

3

BL 3

BL

Y

2

SYSTEM PUMP

W

5

R/BK

3

RELAY COIL R

PR

CKT. BREAKER

Y

6

120V

G

1

GY

GY

1

1HP

UNIT

BR

2

GY

GY

3

BR

BR

GY/W

3

MAX

PUMP

BR

4

G

G

5

GY/W

5

BK

BR/

6

IGNITER

120V/60Hz NEUTRAL

W

W

120V

W

1

BK

SUPPLY

LINE

BK

BK

W

AC

2

G

BK/W

3

CHASSIS

ON/OFF

PUMP RELAY

4

BK/R

5

GROUND

G

GROUND

SWITCH

120VAC COIL

MAIN UNIT

76