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© 2019 tekmar 671
_
D - 08/19
Manual Override – Maximum Heat
In hydronic application modes, the control includes a
Maximum Heat operation where the control operates the
snow melting system to maintain the maximum allowed
heating setpoints. This allows testing of the snow melting
system during warm weather.
Step 1:
Press Settings button.
Step 2:
Press Override button.
Step 3:
Press Manual Override.
Step 4:
Select Manual Override to Max Heat.
Step 5:
Press Back button. The control starts the Max Heat
operation.
Step 6:
Exit the Manual Override by selecting Auto.
When operating a hydronic snow melting system, it is necessary
to purge and bleed all air out of the system. The control includes
a Purge operation where the system, primary and boiler pumps
are all turned on to assist in purging air from the system.
Step 1:
Press Settings button.
Step 2:
Press Override button.
Step 3:
Press Manual Override.
Step 4:
Select Manual Override to Purge.
Step 5:
Press Back button. The control starts the Purge
operation.
Step 6:
Exit the Manual Override by selecting Auto.
Manual Override – Purge
The snow melting system can be manually turned off and the
control remains off until manually changed back to Auto. This
allows the installer or end user to permanently disable the snow
melting system without removing power from the control.
Step 1:
Press Settings button.
Step 2:
Press Override button.
Step 3:
Press Manual Override.
Step 4:
Select Manual Override to Off.
Step 5:
Press Back button. The control is now in the off manual
override.
Step 6:
Exit the Manual Override by selecting Auto.
Manual Override – Off
Access Levels
The control is shipped pre-programmed with common settings.
The control has an
“
Installer
”
access level that allows full
access to all settings and a
“
User
”
access level that restricts
the number of settings available. The control defaults to the
“
User
”
access level after 12 hours of operation.
To change to the
“
Installer
”
access level:
• Step 1: Press the Settings button.
• Step 2: Press the Toolbox button.
• Step 3: Press Access Level.
• Step 4: Press the Installer radio button.
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