Honeywell manual Type, Burnerstage 2 or Districtheating valve Closed, SDC 12-31

SDC / DHCOverview

3

Overview

The modular SDC / DHC control device is available in an

installable switch cabinet version and a surface-mounted wall

version with the following equipment features:

Type

Numberof output relays

Burnerstage 2 or Districtheating valve CLOSED

Burnerstage 1

Directheating circuit Variableoutput 3

Mixedheating circuit 1

Mixedheating circuit 2

Tankloading pump

Variableoutput 2

Variableoutput 1

SDC 3-10

3

–

x

x

–

–

x

–

SDC 3-40

3

–

–

–

x

–

–

–

–

SDC 7-21 1)

7

–

x

x

x

–

x

–

–

7

x

x

x

x

–

x

x

x

SDC 9-21 2)

+ two

variable

relays

10

x

x

x

x

x

x

x

x

SDC 12-31 3)

+ two

variable

relays

1) DHC 43-1

2) DHC 43-2

3) DHC 43-3

EN2H-0220GE51 R0308 11