Potterton Eurocondense Plus Installation Manual page 43

EXPLANATIONS ON ADJUSTEMENT TABLE FOR HEATING ENGINEERS
618 (KonfigEingangR)
619–621 (KonfigAusgang1R
KonfigAusgang3R)
724 (MmiStatus)
Current summer/winter setting for
boiler module
755 (IonStrom)
Ionization current actual value display
G No function: parm. 618 = "0" (Factory-preset)
G Temperature setpoint (param. 618 = "4")
The temperature setpoint is given by an external analogue signal (0–10 V).
The max. setpoint is set at param. 622. The setpoint can be between 5 and
100 °C (limited by the max. boiler temperature of 85 °C).
5 °C is the minimum threshold, i.e. the boiler is switched on at 6 °C and
switched off at 4 °C.
The heat demand is valid for HC 1. An additional heat demand (e.g. from a
VTC, is accepted, the boiler temperature setpoint is then the maximum of the
two heat demands.
G Output setpoint (param. 618 = "5")
The analogue signal (0–10 V) gives the output setpoint. This analogue signal
ist handed over to the boiler control BMU and is interpreted as a percentage
value on the specific output range of the boiler. The minimum threshold
switching on and off the boiler can be set at param. 623.
The range between min. and max. value ist calculatet into a power signal of
0–100 %.
If the analogue signal is higher than the minimal value, the boiler operates at
min. output. At the max. value, the boiler operates at max. output. If the
analogue signal is below the minimum threshold, the output setpoint is not
active.
Other settings of param. 618 are not possible with the CISP. If other clip in
modules are connected, see the specific installation manual for other setting
possibilities.
The CISP clip-in has 3 outputs than can be programmed.
Factory-presettings are 619 (output 1) = 2 (alarm signal)
See wiring diagram for details.
The current summer/winter setting for the boiler module is displayed:
724.0 0 or 1:
724.1 0 or 1:
The current ionization current is indicated when the burner is in operation.
620 (output 2) = 3 (operating signal)
621 (output 3) = 0 (no function)
Current summer/winter setting
(Value 0 = Summer, Value 1 = Winter)
Current summer/winter switchover
(Value 0 = Manual, Value 1 = Automatic)
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