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Commissioning
The following tasks must be completed in order to commission the ground source heat pump:
3.11.1
Recorded Details
The following details must be recorded in the commissioning certificate.
Householder’s Name and Address
Installation Date
Installing Engineer
Commissioning Date
Commissioning Engineer (Name and registered company)
Unit Type (AS01-R32, AS02-R32 or AS03-R32)
Serial Number
Heating System Details (no. of zones, underfloor heating pipe spacing, radiators etc.)
Inhibitor Type (brand of inhibitor and dosing)
DHW Cylinder Details (brand and model number, capacity, heat exchanger details)
The time and date must be set.
3.11.2 Testing Flow Rate
The heating circuit must be fully installed, filled, purged and pressure tested. The pressure should
be set at around 1 bar. It is essential that all air has been expelled from the circuit and that
adequate flowrates are achievable.
3.11.3 Weather Compensation Mode
Weather compensation works by adjusting the heat output of the heat pump to match the current
heat loss of the building. This is achieved by adjusting the heating flow temperature according to
the outdoor temperature. As the outdoor temperature drops, the heating flow temperature is
increased and vice versa. The outdoor temperature is monitored by an external temperature
sensor installed on the back of the unit.
To activate weather compensation turn on the switch as shown in Fig 34 below. If a fixed flow
temperature is required, the weather compensation can be turned off. If weather compensation
is disabled, the SAP assessment (EPC) is invalid. A commissioning certificate and label must be
provided that confirm this disablement.
Sample setting for weather compensation curves for underfloor heating and radiators are shown
below. The flow temperature setpoint should be adjusted to match the calculated flow
temperature requirement at the design day temperature. The default flow temperature setting is
50°C.
Summary of Contents for A Series
Page 36: ...Page 34 Figure 24 AS02 R32 Casing Dimensions Heating Connection Locations FRONT SIDE TOP...
Page 40: ...Page 38 Figure 26 Heating DHW Schematic Figure 27 Heating Only Schematic...
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