Potterton Gas condensing boiler Installation, Operation And Maintenance Manual page 103

Contact type H1/H4/H5/H2
(5951, 5971, 5978)
Voltage value 1/2 H1
(5953, 5955)
Function value 1/2 H1
(5954, 5956)
Frequency values 1/2 H4
Function values 1/2 H4
(5973-5976)
Function extension module
1/2
(6020/6021)
396532 05.11
- Pulse count: By querying the input the low frequency pulse, e.g. for flow meas-
urement is recorded.
- Checkb sign flue gas damper: Checkback via input H1 in case of activated flue gas
damper control.
- Start prevention: With this input a burner start can be prevented.
- Consumer request VKx 10V: The application nodes external load x receives a volt-
age signal (DC 0-10 V) as heat request. The linear curve is defined via two fix
points (voltage value 1/function value 1 and voltage value 2/function value 2
(only applies to H1).
- Preselected output: The source receives a voltage signal (DC 0 - 10 V) as output
request. The linear curve is defined via two fix points (voltage value 1/function
value 1 and voltage value 2 / function value 2 (only applies to H1).
- Flow measurement: Here a flow sensor can be connected which indicates the
flow volume via a frequency (only applies to H4).
With this function, the contacts can be set as resting contact (contact closed,
must be opened for activating the function) or as working contact (contact
opened, must be closed for activating the function).
The linear sensor curve is defined over two fixed points. The setting is made with
two parameter pairs for Function value and Voltage value (F1 / U1 and F2 / U2).
The function value is specified to a factor of 10, i.e. if you require 100 °C, you
should select "1000".
The linear sensor curve is defined over two fixed points. The setting is done with
two parameter pairs for function value and frequency value (F1 / U1 and F2 / U2).
Fig. 26: Example for two different sensor curves
flow
Determination of the functions, which will be controlled via the extension mod-
ules 1 and 2.
- Multifunctional: Possible functions for multi-functional relay outputs and inputs
see prog.-no. 6030 to 6035.
- Heating circuit 1 For this usage, the respective settings can be adjusted in the
menu point Heating circuit 1.
- Heating circuit 2 For this usage, the respective settings can be adjusted in the
menu point Heating circuit 2.
Paramount three 30-115 kW
Programming
y
103