Evo Heat Pump Manual Version 5
Page 59 of 84
vate a supplementary heat source on a separate supply voltage. The call for supplementary heating will
cancel once the return temperature increases to within the settable cut out differential.
•
Relay—Whether the supplementary heat function is enabled or disabled.
•
Time Delay (HH:MM)
-
The period of time in hours that the return temperature stays below the set
point temperature minus the cut in differential. i.e. If the cut in differential is 10
o
C and the set point
is 45
o
C, the amount of continuous compressor run time while the return temperature is below 35
o
C
before the supplementary heat is called for.
•
Cut
-
In Diff (
o
C)
-
The set difference between the return temperature from the heating distribution
system and the point where the period of continuous compressor operation (Time Delay) is
measured.
•
Cut
-
Out Diff (
o
C)
-
The set difference between the return temperature from the heating distribution
system and the point at where the supplementary heat call is cancelled.
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