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AFFINITY DUAL CAPACITY HYDRONIC INSTALLATION MANUAL
HydroZone Controller Instructions cont.
If AUX is selected in stage 4, ENTER would take the user to “ADDITIONAL DEAD BAND FOR AUX HEAT” screen and then
to “MAXIMUM OAT FOR AUX HEAT” screen.
The “ADDITIONAL DEAD BAND FOR AUX HEAT” would enable the installer to select how much extra dead band should be
added on top of the heat dead band before auxiliary heat would come on. The range is between 5° and 15°F.
In the “MAXIMUM OAT FOR AUX HEAT” the installer can select between NONE
or a certain outdoor air temperature. If the installer selects a certain temperature
for OAT, the AUX heat shall not come on if the outdoor air temperature is above
that temperature. The range is between 0°F and 40°F.
If “NONE” is selected, the AUX heat can come on at any time regardless of the
outdoor air temperature.
An outdoor air sensor (TSU02) must be installed for
this option.
Lead/Lag
If only C1 is selected in the staging, the lead/lag will be selected as “NO”, and can not be changed.
Each compressor output will have an accumulator to keep track of total run time. If any accumulator ran up to the
maximum count, all the accumulators shall be reset. Total run time will be reset when lead/lag “NO” is selected. The default
setting is “NO”.
• First On – Compressor stage with least amount of accumulated run time.
• First Off – Compressor stage with most amount of accumulated run time.
Factory Defaults
When YES is selected for RESTORE FACTORY DEFAULTS, the controller will
restore the factory defaults configuration. Factory default control option is
tank control manual. The factory defaults are 120°F heating, 5°F dead band,
and warm weather shutdown None.