Hoval AgroLyt 20, Operating Instructions Manual, Page: 20 / 34

Start-up (heat-up phase)
When starting up the system, it is advisable to observe
the notes in the installation manual.
1. Checks:
• Are the slide valves in the heating flow and return
lines open?
• Is the combustion air supply into the boiler room
adequate?
• Is the main switch on the boiler control unit set
to “ON”?
• Are the combustion chamber door and the ash
removal door 1 closed?
• Only for N5.1 controller: Has the desired tempe-
rature been set on the boiler temperature control
(pos. 13, figure on page 11)?
Please note the information on fuels on page
22.
2. Open fuel loading door 2 and lighting door 3 (lift
door lock lever).
3. Place paper and easily ignitable kindling on the
loading chamber and light it. Fill height approx. 15
cm.
4. Close the fuel loading door 2. Lighting door 3 stays
open.
5. Wait approx. 10 minutes to allow the wood to catch
fire before loading more wood into the fuel loading
chamber.
Align the split logs in line with the
longitudinal direction of the boiler (not
criss-cross) to avoid any gaps as much
as possible. Any wood that does not
fill the full length of the loading space
should be loaded first and placed at
the very back of the chamber. The re-
maining space at the front should then
be filled crossways with wood.
6. Proceed to close the lighting door 3.
From this moment everything is done
automatically.
7. When the fuel is consumed, the auto-
matic cut-out switches off the fan unit.
Start-up
Figure 5
2
3
1
The loading chamber can be filled up to the
top with wood.
During the periods of lower heat demand (e.g.
autumn, spring), or when the heating water
storage tank is already at the desired temper-
ature (65 ºC or higher), the boiler should be
filled with less wood (see page 31 of the brief
operating instructions).
Stoking and burnout control is carried out
through the lighting door.
All doors must be kept closed during operat -
ion!
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