Potterton Gas condensing boiler, Инструкция по установке, эксплуатации и обслуживанию, Страница: 87 / 136

Fan output DHW max.
(2444) With this parameter the maximum boiler capacity for the DHW mode can be re-
stricted.
Note : These are calculated values. The actual output must be calculated using a
gas meter, for example.
Fan shutdown heating mode
(2445) This function is used for switching off the supply voltage for the fan. The supply
voltage for the fad is released as soon as the fan PWM actuation is active or a
DHW request exists. The switch off is done delayed to switch off of the PWM ac-
tuation or to discontinuation of the DHW request. The duration of the switch off
delay can be set with the fan switch off delay function (prog.no. 2446). During a
DHW request the voltage supply for the fan also remains then released if the
PWM actuation is not active.
Fan shutdown delay
(2446) If no heating requirement exists the voltage supply of the fan is switched off. The
time is set here in which the fan gets voltage anyway.
Controller delay
(2450) The controller delay is used for a stabilisation of the combustion conditions, espe-
cially after a cold start. After release of the firing automation by the controller
this remains on the set output for a specified time. Only after this time has
elapsed is the modulation released.
Prog. no. 2450 is used to set at which operating mode the controller delay is ac-
tive.
Controller delay fan output
(2452) Boiler capacity which is used during the duration of the control delay.
Note : The calculated value see prog-no. 2444.
Controller delay duration
(2453) Duration of the control delay. The time duration starts as soon as after ignition a
positive flame detection is done.
Programming
396532 05.11 Paramount three 30-115 kW 87