Viessmann SCU345, Manual

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62
en-US/C
A
6.3 Overview of options and their para-
meters
In the following, the additional options and para-
meters are listed.
The options and parameters displayed depend on the
system as well as on the options and functions which have been selected. Some of the options and para-
meters will only be displayed, if they are available with
the individual adjustments.
Channels
Channel
Sub channel 1 Sub channel 2 Factory setting Change to Description Page
COOL > Cooling functions
OSYC* OFF System cooling 51
DTCO 20 K [40 °Ra] Switch-on difference system cooling 51
DTCF 15 K [30 °Ra] Switch-off difference system cooling 51
OSTC OFF Tank cooling 52
OHDP* OFF Heat dump 52
OTCL 110 °C [230 °F] Overtemperature collector 52
OTPUM OFF Pump or valve logic 52
ODTFT >
∆
T function option
54
DT4O 6.0 K [12.0 °Ra]
∆
T function switch-on difference 54
DT4F 4.0 K [8.0 °Ra]
∆
T function switch-off difference 54
RIS4 2 K [4 °Ra]
∆
T function rise 55
TH1O 65.0 °C [150.0 °F] Thermostat function 1 switch-on temperature 55
TH1F 60.0 °C [140.0 °F] Thermostat function 1 switch-off temperature 55
TH2O 45.0 °C [120.0 °F] Thermostat function 2 switch-on temperature 55
TH2F 50.0 °C [125.0 °F] Thermostat function 2 switch-off temperature 55
DTREL 4
∆
T function relay
55
OTH > Thermostat function option
THNHE 40 °C [110 °F] Thermostatic backup heating switch-on temperature 55
THNHA 45 °C [120 °F] Thermostatic backup heating switch-off temperature 55
S TH 3 / 5 Thermostatic backup heating sensor 56
RTH Thermostatic backup heating relay
t1O 06:00 Thermostatic backup heating switch-on time 1 55
t1F 22:00 Thermostatic backup heating switch-off time 1 55
t2O 00:00 Thermostatic backup heating switch-on time 2 56
t2F 00:00 Thermostatic backup heating switch-off time 2 56
t3O 00:00 Thermostatic backup heating switch-on time 3 56
t3F 00:00 Thermostatic backup heating switch-off time 3 56
PUMP > Speed
PUMP1 OnOF Speed variant pump 1 45