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4.6.7
DHW cut-in temperature ( )
Adjustable from
°C to
See chapter 4.6. Table
DHW demand
With sensor:
- The DHW demand is satisfied when the DHW temperature equals
the DHW set point temp (parameter
- The DHW cut-in temperature sets the
DHW demand.
Cut-in temperature =
DHW set point (55) + 5 - parameter
With thermostat:
4.6.8
Fan Speed at DHW full load ( )
Adjustable from 18% to 100% output (= approx. 1300 to 7000 rpm for
the 115 and 1200 to 6000 for the 65).
This value sets the maximum output of the boiler.
4.6.9
Forced part load time after start (HTG only -
Adjustable from
to
This value sets the period of time the boiler will stay on part load at
start up during which time the flow temp is limited by part load temp
set point (Parameter
)
4.6.10 DHW control stop set point ( )
Adjustable from
°C to
4.6.11 DHW control option ( )
This value sets the DHW control option.
Three way diverting valve (port A - HTG and port B - DHW)
DHW pump
4.6.12 HTG cut in temp ( )
Adjustable from
(-10) °C to
This value sets the
∆T
below actual return temp at the moment of
control stop during HTG demand.
A control stop occurs when the flow temp equals the flow temp set
point +5 °C.
HTG cut in temperature = actual return temperature at the moment of
control stop (e.g. 60) - parameter
4.6.13 Boiler type ( )
Factory default must not be changed.
See chapter 4.4 Shut-off mode,
25/01/2011 - 300014883-001-K
°C (8 steps).
) + 5 °C.
below this end point for
∆T
(5), i.e. 55 + 5 - 5 = 55 °C.
minutes.
°C.
°C.
(3)
- The thermostat determines the DHW demand.
Boiler modulation during continuing DHW demand
Sensor and thermostat:
- The boiler will modulate when the flow temp equals the DHW set
point + DHW control stop set point (parameter
75.
- The boiler carries out a control stop at a flow temp of 80 °C
(modulation point + 5 °C), the display initially shows
reducing to
- The DHW cut-in temperature sets the below this control stop.
Cut-in temperature =
DHW set point (55) + DHW control stop set point (parameter
5 - parameter
Parameters
-
changed
)
Changing the factory default should only be carried out on advice
from the service engineer.
NOTE: When using an external analog (0 -10 V) or 2 wire modulation
input, the factory default
Parameter
factory set must not be changed
See chapter 4.6.7.
Inverted three way diverting valve (port B - HTG and port A
- DHW)
Parameter
not applicable
i.e. 60 - 3 = 57 °C
If this takes longer than the maximum delay time (parameter
boiler will restart (unless flow temperature exceeds flow temperature
set point).
Parameter
not applicable
Parameter
factory set must not be changed
Gas 110 Eco 115 / 65
.
(5), i.e. 55 + 20 + 5 - 5 = 75
- and
are factory set and must not be
should be changed to
) i.e. 55 + 20 =
,
) +
.
), the
23
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