Enduser Instructions, Adjustment And Setting - Danfoss VX Solo HWS 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 TD200 differential pressure controller is preset from factory and
should not be adjusted afterwards.
Heating circuit, Temperature control
Thermostatic control
The HE temperature is controlled by a self-acting temperature control-
ler Danfoss AVTB (Fig. 2). The controller has a control valve, thermostatic
actuator and handle for temperature setting.
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 settings:
1.0 = 35 °C
1.5 = 45 °C
2.0 = 55 °C
2.5 = 65 °C
3.0 = 75 °C
The setting values may vary depending on the operating conditions.
It is important to set the supply temperature to the radiators as low
as possible. Use the radiator thermostat to regulate the room tem-
perature.
Other variations with other types of thermostatic valves for control of
the heating circuit may occur.
Pump.
VX Solo HWS substations are factory fitted with a pump (Fig. 3). The
pump setting is established in connection with the commissioning.
Generally speaking, this setting is not to be altered. If it should neverthe-
less be necessary to change the pump setting, see the section concern-
ing pumps in the installation and commissioning sections regarding the
individual products.
Programmable Room thermostat / DHW time controller
TP9000
The VX Solo HWS is specificly prepared for connection of a TP9000
controller (Fig. 4), which allows heating and DHW operation accord-
ing to demand.
The TP9000 comes with a factory preset clock with automatic sum-
mer/winter time changes, and at installation the TP9000 is set to
operate in either full 7 day, 5 day/2 day mode, which allows different
programmes to be set for the weekend, or in 24 hour mode, in which
case the programmed events are repeated every 24 hours.
There is normally no need to alter the settings or other functions. How-
ever, should this be necessary, we recommend that you contact your
professional provider, or refer to separate instructions for TP9000.
Immersion Control Thermostat (mounting on site)
An applicable immersion control thermostat of your choice choice
must be mounted in the 2/3 point of the DHW cylinder.
An immersion control thermostat offers secure immersion sensing,
and is used to control water temperature in the hot water cylinder.
As optional supply, Danfoss offers an immersion control thermostat
type ITC (Fig. 5), which must be ordered separately and supplied
loose with the substation for mounting on site.
The immersion thermostat has a 100mm insertion length and is sup-
plied with a ½"BSP/100mm pocket. It has an adjustment range of
0-90°C has SPDT contact.
Recommended setting is 60 °C.
6
DKDHR
VX Solo HWS substations
Fig. 1
TD200
Fig. 2
AVTB
Fig. 3
Fig. 4
Fig. 5
Immersion Control Thermostat ITC for
cylinder - 132.886 - Code No. 099-1057
VI.HE.M1.02 Danfoss District Energy