EHC Comet - Page 28

28
8:38 THU 24,08,2017
SERVICE/CONFIGURATION
SERVICE / CONFIGURATION optional settings
with O/S (outside sensor) and I/S (NTC sensor
activated)
PREVIEW OF PARAMETERS:
view of input and output signals of the boiler.
CONFIGURATION:
adaptation of the boiler to the heating system in the facility. access
code: 987
● CENTRAL HEATING:
- WEATHER COMP.: selection heating curve.
- OFFSET: shift of the heating curve.
- MAX BOILER TEMP: maximum central heating system
temperature
- SET BOILER TEMP: temperature in the installation when
operating with constant parameters and in emergency
conditions.
- REGULATION:
MANUAL (default) -> the temperature in the installation
is equal to manual CH temperature (see above SET
BOILER TEMP or alternative way of setting CH
temperature: SETTINGS>BOILER TEMPERATURE)
WEATHER COMP.-> the temperature in the installation
is calculated on the basis of the outside temperature
taking into account heating curve (only with O/S
activated).
- OUTSIDE TEMP OFF - outside temperature settings above
which central heating circulation is off.
- FROST PROTECTION: turn on central heating installation
frost protection.
● HOT WATER TANK:
- POWER TEMPERATURE: setting coil’s supply temperature.
- CANCEL - turn off the storage circuit.
*IfStoragefunctionisoff-menuwillonlyshowapossibility
toturniton(‘On’).
● ROOM TEMP:
- TEMP SENSORS:
RT -> activation room thermostat
I/S -> activation internal sensor
- TEMP CONTROL: YES -> heating turned off after reaching
the set room temperature only with TEMP SENSOR > I/S.
- TEMP HYSTERESIS: room temperature hysteresis only
with TEMP SENSOR > I/S
● PUMP:
- PUMPS OVER RUN: time to turn the pump on for a short
time at a longer standstill (protection against blocking).
- AUTOMATIC MODE: yes > works according to user’s needs
/ no > works constantly.
- TYPE: pump’s type.
- REGULATION: specication of pump’s conguration
VARIABLE P. – pressure difference produced by the pump
is maintained at the settings level which changes
linearly between ½ H and H. Pressure difference
setting is being decreased or increased depending on
ow rate. This type of regulation is recommended for
installations with traditional radiators, it reduces noises
produced by thermostatic valves.
CONST P. - pressure difference produced by the pump is
maintained at the constant setpoint within efciency
rate for pump’s maximal characteristics. This type of
regulation is recommended for underoor wet heating
installations, older CH systems with the pipes of larger
diameters, or for all other installations with constant
characteristics.
- VENTING: on > venting turns on / off > venting turns off.
During venting procedure (10 min) the pump works
alternately with a maximal and minimal rotation speed.
Thanks to this air bubbles are concentrated and easier to
remove from the installation.
- HMAX[m] - settings of the pump’s height for different boiler’s
outputs
POWER [kW] 9 12 14,4
H MAX [m] 4 6 7
● MAX RATED POWER: setting heater’s rated power.
● COMMUNICATION:
- device’s number: device’s number on the mains (setting ‘0’
turns off the mains service).
● PRESSURE CONTROL: YES/NO.
Exit any menu item by pressing ′End′ or by pressing and holding
the navigation dial. When not operated by the user, main function
screen will appear after about 3 min.