Potterton EC three 125 Installation, Operation And Maintenance Manual page 83

24-hour heating limit
(732, 1032, 1332)
Flow temp setpoint limita-
tions
Minimum
(740, 1040, 1340)
Maximum
(741, 1041, 1341)
Flow temp setpoint room stat
(742, 1042, 1342)
Delay heat request
(746, 1046, 1346)
7308536-02 06.13
Fig. 15: Summer/winter heating limit
SWHL
ON
OFF
SWHL Summer/winter heating limit
T Temperature
t Time
The 24-hour heating limit shuts off the heating circuit if the current outside tem-
perature increases up to the difference set here of the current operating level (re-
duced or comfort set point). The heating cuts on again if the current outside tem-
perature again falls under the set difference minus 1°C.
This function is not active in the operating modes Continuous Comfort and Con-
tinuously Reduced.
With this function, a range can be defined for the flow setpoint. When the re-
quired flow temperature setpoint of the heating circuit reaches the respective
limit value, this remains constantly on maximum or minimum value during con-
tinuously increasing or decreasing heat requirement.
For room thermostat mode the flow setpoint set here applies. Setting - - -°C gives
the flow temperature setpoint from the outside temperature and the heating
curve.
The boiler heat request is forwarded to the burner delayed by the time set here. In
this way a slowly opening mixer can already start up before the burner goes into
operation.
Note: If, uner Prog. no. 1630 the option Absolute is selected, the value "0" must be
set under Prog.no. 746, 1046 and 1346. For special functions (e.g. chimney-sweep
function) the delay does not have an effect (see Prog. no. 2470).
Condensing gas boiler Eurocondense three125-300 kW
Programming
Outside temp attenuated
(Prog.no. 8703)
83