Tekmar DHW Control 257 - Control Settings; DIP Switch Settings

© 2008 D 257 - 03/08 8 of 12
DIP Switch Settings
Off | On - Rotate
The Off | On – Rotate DIP switch is used to turn boiler
rotation on or off. When using a single boiler with two
stages, the DIP switch should be in the off (down) position.
When using two single-stage boilers, the DIP switch should
be in the on (up) position.
1
C
Po
Rotate
On
Off
DHW Control 257
Two Stage
Item
Date Code
1234
CR
7
Com
Sen
8
DHW
Sen
No Power
Signal wiring
must be rated
at least 300V
Power Heat 1
56
Heat 2
Rotate
On
Off
Control Settings