Evo Heat Pump Manual Version 5
Page 66 of 84
6.5.2.5 Commissioning—set up—Water Pressures
The Water Pressure screen allows the pressures to be set at which the alarms will be activated.
Ground Side (Bar)
This allows the low and high pressure values to be set at which the fault alarms will be activated for the
ground side.
Load Side (Bar)
This allows the low and high pressure values to be set at which the fault alarms will be activated for the
load side.
6.5.2.6 Commissioning—Set up—Pump Speeds
Load Pump
•
Operational Speed %
-
This is the operational speed in % of the internal load side water pump as a
percentage of full load.
•
Setback Speed %
-
This is the setback speed in % of the internal load side water pump that the
water pump will drop to when the compressor is not operational. A flow on the load side is always
required when the heat pump is operating as it enables the temperature of the heating distribution
to be continually and accurately measured. This ensures that the heat pump reacts to any drops in
temperature from the building. Having a setback speed maintains the flow but reduces the pump
’
s
speed to improve efficiency of the system.
Ground Pump
•
Operational Speed %
-
This is the operational speed in % of the internal ground side water pump as
a percentage of full load.
•
Setback Speed %
-
This is the setback speed in % of the internal ground side water pump that the
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Fig 75 Commissioning —Set
up–
Water Pressures menu
Fig 76 Commissioning —Set
up–
Pump Speeds menu