tekmar 270 Boiler Control - Manual (Page 22)

© 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