REMEHA Selecta - Page 3

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6 Electrical connection 27
6.1 General 27
6.1.1 Mains voltage 27
6.1.2 Control connections 27
7 Controls 31
7.1 Control box 31
7.2 Boiler control 32
7.2.1 Introduction 32
7.2.2 Simple time clock and on/off room thermostat (control based on
time and room temperature) 32
7.2.3 Modulating OpenTherm® room controller (control based on time
and room temperature) 32
7.2.4 Outside-temperature sensor (control based on outside temperature
and settings as in Fig. 20) 32
7.2.5 Frost protection 34
7.2.6 Boiler temperature control 34
7.2.7 Low water level protection 34
7.2.8 Maximum protection (over heat thermostat) 34
8 Commissioning 36
8.1 Putting into operation 36
8.2 Gas rate measuring 37
8.3 Handing over 38
9 Control 39
9.1 The instrument panel 39
9.1.1 General 39
9.1.2 Instrument panel structure 39
9.2 Meaning of the various modes 40
9.2.1 General 40
9.2.2 Temperature mode 40
9.2.3 Programming mode 40
9.2.4 Service mode 43
9.2.5 ‘Forced High’ mode 43
9.2.6 ‘Forced Low’ mode 44
9.3 Adjusting parameters for the installer 44
9.3.1 DHW three-way valve (J) 46
9.3.2 Pump speed - central heating operation (L) 46
9.4 Putting the boiler out of operation 46