Atmos
Heating Systems
Installation and user manual EN_FMT
3
4.8.2.
Low load..................................................................................................................................................
18
4.9.
Placing the jacket...................................................................................................................................
18
4.10.
Changing
over to LPG-gas....................................................................................................................
18
4.10.1.
Full
load om Propane.............................................................................................................................
18
4.11.
Display...................................................................................................................................................
19
4.11.1. Normal operation (permanent status indication)....................................................................................
19
4.11.2. blocking operation (permanent status indication)..................................................................................
20
4.11.3
Lock-out
(flashing status indication).......................................................................................................
20
4.12.
Menu
structure.......................................................................................................................................
21
CHAPTER 5. TEMPERATURE REGULATIONS
22
5.1.
Central Heating........................................................................................................................................... 22
5.1.1.
Central heating temperature regulation with on/off thermostat without outside temperature sensor......... 22
5.1.2.
Central heating temperature regulation with on/off thermostat with outside temperature sensor.............. 22
5.1.3.
Central heating temperature regulation with modulating thermostat with or without outside tempsensor.. 22
5.2.
HWS
temperature regulations.................................................................................................................... 23
5.2.1.
Combi-boiler............................................................................................................................................... 23
5.2.1.1.
HWS heat demand..................................................................................................................................... 23
5.2.1.2.
End
of
hot water heat demand................................................................................................................... 23
5.2.1.3.
Store heat demand..................................................................................................................................... 23
5.2.1.4.
End
of store demand.................................................................................................................................. 23
5.2.2.
Boiler
with
external HWS cylinder.............................................................................................................. 23
5.2.2.1. HWS cylinder with external sensor without modulating space unit............................................................ 23
5.2.2.2. HWS cylinder with external sensor with modulating space unit.................................................................. 23
5.2.3.
HWS cylinder with thermostat without modulating space unit.................................................................... 23
5.2.4.
HWS cylinder with thermostat with modulating space unit......................................................................... 23
CHAPTER 6 BURNER STATES and MONITORING
24
6.1.
Burner states.............................................................................................................................................. 24
6.1.1.
Rest state................................................................................................................................................... 24
6.1.2
Purging/Prestart......................................................................................................................................... 24
6.1.3.
Ignition........................................................................................................................................................ 24
6.1.4.
Operation.................................................................................................................................................... 24
6.1.5.
Post-ventilation........................................................................................................................................... 24
6.1.6.
Functional locking....................................................................................................................................... 24
6.2.
Monitoring................................................................................................................................................... 24
6.2.1.
Monitoring
the pump circulation.................................................................................................................. 24
6.2.2.
Pump programm......................................................................................................................................... 24
6.2.3.
Pump
test programm.................................................................................................................................. 24
6.2.4.
Static
pressure monitoring.......................................................................................................................... 25
6.2.5.
Difference
in temperature........................................................................................................................... 25
6.2.6.
Maximum
temperature limitation................................................................................................................ 25
6.2.7
Flue gas temperature limitation.................................................................................................................. 25
6.2.8.
Flow
sensor protection............................................................................................................................... 25
6.2.9.
Frost protection.......................................................................................................................................... 25
6.2.10.
Monitoring the fan speed............................................................................................................................ 25
6.2.11.
Glow
plug protection................................................................................................................................... 25
CHAPTER 7. MAINTENANCE
26
7.1.
Annual
maintenance.................................................................................................................................. 26
7.1.1.
Checking the CO
2
percentage on full load................…………………………………………………………. 26
7.1.2.
Measuring
the load on the unit ................................................................................................................. 26
7.1.3.
Checking the condensation water drain.......…………………………………………………………………… 26
7.1.4.
Ionisation probe.......................................................................................................................................... 26
7.1.5.
Water pressure........................................................................................................................................... 26
CHAPTER 8. MALFUNCTIONS
27
8.1.
Draining the unit......................................................................................................................................... 27
8.2.
No
signal
on the display............................................................................................................................. 27
8.3.
Fault code U/d or U/O (alternating U with a status code will appear on the display................................... 27
8.4.
Unit does not respond to central heating heat demand.............................................................................. 27
8.5.
Unit does not respond to HWS demand...................................................................................................... 27
8.6.
Three-way-diverter valve............................................................................................................................ 27
8.7.
Check
function of gas control..................................................................................................................... 27
8.8.
Measuring
the fan impedance.................................................................................................................... 27
8.9.
Fitting
instructions
for the pressure sensor................................................................................................ 27
