background image

1

2

3

4

A

B

C

D

4

3

2

1

D

C

B

A

Title

Number

Revision

Size

A4

Date:

1-Dec-2009 

Sheet    of 

File:

E:\

产品资料

\BI800\BI800PCB-1.ddb

Drawn By:

R2

120K

L

N

L1
 TANK LEVEL

R3
100k

SW1
REED

C1

0.1uF,275V

A

-

+

M1

pump

M2 SOLENOID VALVE

 (NORMAL OPEN)

THERMOSTAT

SW2

 Micro-switch

THERMAL FUSE

PRESSURE SWITCH

 heater2

1400W

N

1

2

THERMOSTAD

THER

M

A

L FUSE

 heater1

700W

THER

M

O

STAT

S1

 main swtich

C2
0.47uF/275V

R1
330k

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