Evo Heat Pump Manual Version 5
Page 65 of 84
6.5.2.3 Commissioning—set up—Pump Exercise Routine
The pump exercise routine sets a frequency and duration of an exercise routine for the Load water pump
and the Ground Water pump. It is designed so that in periods of long non
-
operation a signal is sent to the
water pumps to spin the pumps to avoid them from sticking due to in
-
activity.
Load and ground pumps can be set independently. A time is scheduled in days (i.e. 7 for weekly, etc) and
a duration of the call signal in seconds can be entered as well as whether the function is enabled or
disabled.
6.5.2.4 Commissioning—set up—Weather Compensation
•
Ext. Temp Set Point (
o
C)—Weather compensation set point, i.e. the external temperature at which
the weather compensation starts to operate.
•
Degree Per Degree Gradient—This is the multiplier of the number of degrees that the water set
point changes for each degree change sensed in the outdoor temperature. Ideally this should be a
value between 1.0 and 1.5 which would suit most properties. For example if the multiplier is set to
1.5 then for a 2 degree change in ambient temperature the heat pump output temperature chang-
es by 3 degrees
•
Maximum Variation (
o
C)—This is the maximum amount of positive deviation to the heat pump out-
let temperature that is allowed by the weather compensation.
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Fig 73 Commissioning —Set
up–
Pump Exercise Routine
menu
Fig 74 Commissioning —Set
up–
Weather Compensation
menu