Plum ecoMAX920P1-K TOUCH Installation And Operating Manual page 22

Scheme with heat buffer
temperature sensor, 5 – exhaust temperature sensor, 6 – boiler pump, 7 – heating buffer, 8 – HUW pump, 9
- mixer valve actuator, 10 – mixer temperature sensor, 11 – mixer pump, 12 – upper buffer temperature
sensor, 13 – lower buffer temperature sensor, 14 – standard room thermostat or ecoSTER TOUCH room
panel, eSTER_x40 room thermostat, 15 – thermostatic 3-way valve for return protection, 16 – outside
temperature sensor (weather), 17 – thermostat to turn off the pump, 18 - additional module B.
RECOMMENDED SETTINGS:
Parameter
Preset boiler temperature
Minimum boiler temperature
CH pump activation temperature
Buffer support
Buffor loading start temperature
Buffor loading end temperature
Mixer 1 support
Max. mixer 1 temp.
Mixer 1 heating curve
Mixer 1 weather control
Thermostat select.*
Mixer 2 support
Max. mixer 2 temp.
Mixer 2 heating curve
Mixer 2 weather control
Thermostat select.*
* when a standard room thermostat with ON-OFF contacts is connected instead of the room panel, select the
option for the thermostat=Universal or, if the setting is hidden, do not need to select any option for the
thermostat.
3
The presented hydraulic diagram does not replace central heating engineering design and may be used for
information purposes only!
3 : 1 – boiler, 2 – control panel in the separated version, 3 –regulator, 4 – boiler
Setting
80C
75C
55C
ON
50C
75C
CH ON
70C
0.8 – 1.4
ON
ecoSTER T1
Floor on
45C
0.3 – 0.8
ON
ecoSTER T1
eSTER T1
Boiler settings
Service settings  Boiler settings
Service settings  CH and HUW settings
Service settings  Buffer settings
Service settings  Buffer settings
Service settings  Buffer settings
Service settings  Mixer 1 settings
Service settings  Mixer 1 settings
Mixer 1 settings
Mixer 1 settings
Service settings  Mixer 1 settings
Service settings  Mixer 2 settings
Service settings  Mixer 2 settings
Mixer 2 settings
Mixer 2 settings
Service settings  Mixer 2 settings
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