
© 2010 D 270 - 08/10
22 of 24
MAX HEAT
The control has a function called Max Heat. In this mode, the control turns on and operates the system up to the maximum set
temperatures as long as there is a
demand for heat. The control continues to operate in this mode for up to 24 hours or until the
Item
,
Menu
or
Test
button is pressed. This mode may be used for running all circulators during system start-up in order to purge
air from the piping. To enable the Max Heat feature, use the following procedure.
1) Press and hold the
Test
button for more than 3 seconds. At this point, the control flashes
the MAX segment and displays the word OFF
2) Using
the or buttons, select the word On. After 3 seconds, the control turns on all
outputs. However, the max heat mode is still limited by the
BOIL MAX
setting.
3) To cancel the Max Heat mode, press the
Item
,
Menu
, or
Test
button.
4) Once the Max Heat mode has either ended or is cancelled, the control resumes
normal operation.
Menu
Item
Menu
Item