Enduser Instructions, Adjustment And Setting - Danfoss VX Solo II Series Instructions For Installation And Use Manual

Instructions for installation and use

5.0 Enduser instructions, Adjustment and Setting

Heating circuit, Differential Pressure Controller
The differential pressure controller (Fig. 1) reduces the high, fluctuat-
ing pressure in the district heating network to a constant operating
pressure.
The AVPL differential pressure controller is initially set by the plumb-
er in connection with the commissioning of the substation. If disrup-
tions to the operation occur: noise in the radiator thermostats or
poor regulation capacity, it may be necessary to reset the differential
pressure controller to a lower or higher operating pressure. We sug-
gest that you contact your local plumber for assistance.
The TD200 differential pressure controller is preset from factory and
should not be adjusted afterwards.
The AVPB-F differential pressure controller is preset from factory and
should not be adjusted afterwards. The controller has a control valve
with adjustable flow restrictor and flow setting is being done by the
adjustment of the flow restrictor position. We suggest that you con-
tact your local plumber for assistance.
Heating circuit, Temperature control
Thermostatic control
The supply temperature to the substation can be set by adjusting
the thermostat TC (Fig. 2), which controls the temperature for the
heating circuit.
The thermostat will be set by the installer in connection with the com-
missioning, but it may be necessary to adjust it subsequently depend-
ing on the outdoor temperature.
Approximate thermostat scale setting:
Pos. 1 = 20°C
2 = 30°C
3 = 40°C
4 = 50°C
5 = 60°C
6 = 70°C
Please note that a label on the TC thermostat will indicate the temperature
range.
NB! For houses that are heated exclusively with floor heating.
The supply temperature should typically be set to approx. 30–35°C.
ALWAYS refer to the instructions from the floor supplier.
Other variations with other types of thermostatic valves for control of
the heating circuit may occur.
Electronic control
The temperature for the heating circuit can be controlled electroni-
cally by either a Danfoss ECL 210 or a Danfoss ECL 310 controller (Fig.
3). The supply temperature ist calculated by the controller on basis
of the outdoor temperature.
See the enclosed documentation for same.
Pump.
VX Solo II substations are factory fitted with pump(s) (Fig. 4). The pump
setting is established in connection with the commissioning. Gene-
rally speaking, this setting is not to be altered. If it should nevertheless
be necessary to change the pump setting, see the section concerning
pumps in the installation and commissioning sections regarding the
individual products.
In the summer, you can switch off the power to the pump at the mains
if you want to save electricity by not heating your home.
Start-up and venting – see the installation and commissioning sections,
if necessary.
Danfoss District Energy
VX Solo II substations
Fig. 1
AVPL
Fig. 2
Fig. 3
ECL 210 / ECL 310
Fig. 4
VI.GP.P2.02
or or
TD200 AVPB-F
15 15
DKDHR