Start-Up - Danfoss EvoFlat WSS Guide D'installation

Mounting and installation instructions

3.2 Start-up

Start-up, Direct heating
The shut-off valves should be opened and the unit observed as it enters
service. Visual checking should confirm temperatures, pressures, acceptable
thermal expansion and absence of leakage.
If the heat exchanger operates in accordance with design, it can be put
to regular use.
After water has been added to the system and the system has been put
into operation, re-tighten ALL connections. Check that all hairpins in click
connections are completely pushed in.
Start-up, Heating with mixing loop
Start-up:
1: Pump speed
Set the pump to its highest speed of rotation before start-up. On radiator
systems, the selector switch is normally set in "Variable curve / Proportional
curve" setting, in "max. pos. " . For floor heating systems, the selector switch
is normally set in "Constant curve" setting, in "max. pos. " .
2: Start pump
Start the pump and heat through the system.
3: Open shut-off valves
The shut-off valves should then be opened and the unit observed as it
enters service. Visual checking should confirm temperatures, pressures,
acceptable thermal expansion and absence of leakage.
If the system operates in accordance with design, it can be put to regular
use, - always taking into account the conditions in the building.
4: Vent system
Switch off the pump and vent the installation after the system has been
warmed up. Please note that some pump types feature a built-in venting
function. For others the installation can be vented by using a vent valve
in the flat station or on the radiators, or, if appropriate, the air valve at the
highest point of the system – For additional information, please refers to
the enclosed pump and manual.
5: Adjust pump speed
Set the pump to the lowest possible position, depending on the heating
requirement for the building - taking into account aspects such as cooling
and power consumption.
If the heating requirement increases the pump setting can be changed
by means of the selector switch. Please refer to the enclosed instruction
manual for detailed information about setting ranges.
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. It should be ensured
that no inappropriate hydraulic situation will occur, when the power to
your pump is turned off.
For start-up and venting – see above and the enclosed pump manual.
6 | © Danfoss | Produced by Danfoss Redan A/S | 2020.12
EvoFlat
Re-thighten connections
After water has been added to the system and the sys-
tem has been put into operation, re-tighten ALL con-
nections.
Check that all hairpins in click connections are com-
pletely pushed in.
AQ15928645880503-020501