Installation manual

installation manual TWIN 80 EN
25
3.7.1. Outdoor temperature sensor
Outdoor sensor
An outdoor temperature sensor (heating) must be an NTC with a resistance of 12 kOhm at 25°C
(connected to terminals (3) and (4) of the green connector block)
Para-
meter
Description Range
Factory
settings
C Maximum flow temperature 25°C – 90°C 82°C
O/b (3)
Base temperature (minimum flow temperarure) 10°C – 70°C 40°C (4)
O/S (3)
Slope (flow temperature versus outdoor temperature) 01 – 100 (AO=100) 20 (4)
O/d (3)
Day reference temperature (set point flow temperature
at outdoor temperature of 20°C)
0°C – 70°C 40°C (4)
Note: (3) Active when an outside sensor is connected, Note: (4) does not return to factory settings
Adjusting flow temperature curve
Parameter C : This parameter will set the maximal heating
flow temperature (default 82°C).
O/b-value : This parameter will set the minimal flow
temperature (default 40°C).
O/S-value : This parameter will set the slope of the curve;
change of flow temperature depending on the outdoor
temperature (default 20 = 2:1).
O/d-value : This parameter will set a specific point; the flow
temperature (default 40°C).at an outdoor temperature of 20°C.
3.7.2. Domestic hot water (3-Way valve is not included and is and is to initiate by installer)
external HWS cilinder
Boiler extended by installer with an external 3-way valve and external HWS cilinder (range H=2 or H=3)
Para-
meter
Description Range
Factory
settings
b (2)
Set point exterrnal HWS cylinder 25°C - 70°C 60°C (4)
F (2)
Fill temperature external HWS cylinder 65°C - 90°C 85°C (4)
Note (2): Active when external HWS cylinder is connected; Note (4): does not return to factory settings