12. DIAGRAMME EN ESCALIER. AO Smith VF 500, VF 1500, VF 1000, VF 2000, VF 750

Manuel d’installation et de fonctionnement

12

Diagramme en escalier

BOILER

SUPPLY

L

N

BOILER

SUPPLY

G

LOUVER

CONTACTS

ALARM

CONTACTS

TERMINAL

STRIP

BLOWER

BLOWER

RELAY

1

LOUVER

RELAY

ALARM

RELAY

1

2

PROOF OF

CLOSURE RELAY

PROOF OF

CLOSURE VALVE

2

3

VENTILATION FAN

CHASSIS

PUMP

SUPPLY

L

ON/OFF

SWITCH

INTERGRATED

CONTROL

BOARD

X1-6

1

2

X3-3

F5

5A

F3

3.15A

F2

5A

F1

1.6A

F4

1.6A

ALARM RELAY

SILENCE

SWITCH

ALARM

3

X3-4

ALARM

CONTACTS

4

X1-4 UNIT PUMP RELAY

X2-1

X2-7 BLOWER RELAY

X1-3

HSI

X2-2

X2-6

GAS VALVE

X2-3

X1-12

X3-1

X3-2

X6-18

X6-17

X6-9

X6-8

X6-10

X1-7 X1-5

X6-1

FLOW

SWITCH

1.6A

6 J3-6

4 J3-4

5 J3-5

F6

1.6A

LOW WATER

CUTOFF

X1-8 X1-10

24VAC

J3-2

J3-3

J2-3

J2-2

J2-1

TEST

RESET

2

3

LWCO

PROBE

CHASSIS

( ( ( ( (

X6-3

X8-5

X8-15

CN1-12

CN1-11

IN

IN

IN

RUN-TIME

CONTACTS

OUT

UNIT

PUMP

RELAY

OUT

OUT

BOX DEPICTS

OPTIONAL ITEMS

LOW VOLTAGE

120 VAC

2

1

4

5

BLOWER

CONNECTION

BOARD

19

20

UNIT

PUMP

0-10VDC

PUMP

SUPPLY

N

MANUAL RESET

HIGH LIMIT

LOW PRESSURE

AIR SWITCH

X6-12

X6-4

X6-13

1

PROOF OF

CLOSURE RELAY

3

PROOF OF

CLOSURE

SWITCH

2

LOW GAS

PRESSURE SWITCH

HIGH GAS

PRESSURE SWITCH

1 3

CONNECTION

BOARD

CN2-9

LOUVER

PROVING

SWITCH

CONNECTION

BOARD

9

10

CN2-8

BLOCKED

DRAIN

SWITCH

AUTO-RESET

HIGH LIMIT

CN2-4

CONNECTION

BOARD

1

3

HEATER

ENABLE

7

FACTORY

JUMPER

2

4

5

6

CN2-6

LOUVER

RELAY

X6-5

X6-14

X6-15

X6-6

X6-11

X5-1

X5-5

X5-2

X5-6

X5-3

X5-7

X5-4

X5-8

8

15

16

17

18

11

12

13

14

21

CN1-10 X8-12

TANK

SENSOR

X8-2

X8-3

X8-4

OUTLET

SENSOR

INLET

SENSOR

FLUE

SENSOR

CN1-3 X8-1

CONNECTION

BOARD

65

Remarques

Manuel d’installation et de fonctionnement

66