Plum ecoMAX920P2-I, Operation And Installation Manual

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temperature correction =0 . Parameter disappears when Room
thermostat function = thermostat .
Reduction of water temp.
from thermostat
0 … 50 8°C
This parameter can be used only when Room thermostat function =
thermostat. Exceeding a set room temperature causes decreasing
set temperature in the heat circuit by
“Decreasing water
temperature from thermostat”
value.
Set temperature of water inside the heat circuit is not changed if
Decreasing water temperature from thermostat = 0. Parameter
disappears when Room thermostat function = correction .
Pump lock from room
thermostat
No, Yes No
No
– heating circuit pump is not locked when the preset room
temperature is exceeded,
Yes
– heating circuit pump not locked when the preset room
temperature is exceeded
When the pump is locked by room thermostat, temperature “drop”
can be prevented. It can be achieved with the use of parameters:
Heating circuit lock time and heating circuit operation time located.
Name circulation
A…Z
H1 Enables changing name circulation.
Caution: H1 circuit is a nonadjustable circuit. Due to this the H1 circuit preset
temperature is the same as the heating source preset temperature. The
nonadjustable H1 circuit preset temperature will be automatically increased in order
to guarantee heat for H2 and H3 adjustable circuits.
13.2 H2 circuit service settings
Adjustable circuit
Name Range** Setting** Description
Support
OFF, ON (radiators),
ON (floor)
ON
(radiators)
OFF
– disables operation of the circuit,
ON (radiators)
– circuit is on and supplies radiators,
ON (floor)
– circuit is on and supplies floor heating. For this setting,
the controller protects from exceeding a limit temperature in the
floor circuit. High temperature in the floor circuit can cause damage
to flooring and scalding to users.
Adjustment method fixed value, weather, weather
fixed value
– constant preset temperature of water in
nonadjustable circuit is maintained
weather
– water preset temperature of water in the circuit is set
with consideration to external temperature sensor readings.
Parameter is invisible if no external temperature sensor is
connected. If temperature sensor is damaged or not connected, a
control method setting is automatically changed to a fixed value.
Weather control

Heating curve
0,1 … 4,0
1,2
The higher heating curve the higher temperature in the heating
circuit. Recommended settings:
floor heating:
0,2 -0,6
radiator heating: 1,0 - 1,6
Parameter becomes available when Adjustment method = weather.

Curve parallel shift -
20 … 20 °C
Parameter enables to readjust the heating curve.
Parameter becomes available when
Adjustment method = weather.

Constant water preset
temperature
20 … 85 45 °C
When Adjustment method = fixed value , heat source is disabled
when constant water preset temperature is reached. Source is
enabled again after the temperature drops by heat source
hysteresis value. Parameter is not available if Adjustment method =
weather .

Decreasing constant
water temperature
0…80 10°C
When Regulation method = constant value, then a constant set
temperature of water in the circuit is decreased for regulation
modes: NIGHT, AUTO, OUTSIDE HOME, HOLIDAY.

Room thermostat
selection
No
Panel 1
T
1…T3

Panel 1
Parameter assigns a room thermostat to the heating circuit.
No
– room temperature has no effect on the heating circuit,
Panel 1
– room temperature readings are received from the control
panel and they have an effect on a preset temperature of water in
the heating circuit. Name “Panel 1” can be changed in the main
me
nu to, e.g. “Living room” in case the panel is assembled in a