Siemens AVS75.39 Series User Manual page 162

Function input H1, H3
Heating circuits/cooling
circuit
DHW
162 / 239
Siemens
Building Technologies
The operating lines determine the function of input H1 or H3.
Line no. Operating line
5950, 5960 Function input H1, H3
Optg mode change HCs+DHW ¦ Optg mode changeover DHW ¦ Optg
mode changeover HCs ¦ Optg mode changeover HC1 ¦ Optg mode
changeover HC2 ¦ Optg mode changeover HC3 ¦ Heat generation lock ¦
Error/alarm message ¦ Consumer request VK1 ¦ Consumer request VK2
¦ Release swi pool source heat ¦ Excess heat discharge ¦ Release swi
pool solar ¦ Operating level DHW ¦ Operating level HC1 ¦ Operating
level HC2 ¦ Operating level HC3 ¦ Room thermostat HC1 ¦ Room
thermostat HC2 ¦ Room thermostat HC3 ¦ Circulating pump thermostat ¦
Pulse count ¦ Dewpoint monitor ¦ Flow temp setp incr hygro ¦ Boiler
return thermostat ¦ Status info suppl source ¦ Charg prio DHW sol fuel
boil ¦ Flow measurement Hz ¦ Consumer request VK1 10V ¦ Consumer
request VK2 10V ¦ Pressure measurement 10V ¦ Rel room humidity 10V
¦ Room temp 10V ¦ Flow measurement 10V ¦ Temp measurement 10V
Inputs H2 and extension modules 1-3 are set on line 6046-6068.
Changeover of operating mode (digital)
The present operating mode for the corresponding heating circuit(s) / cooling circuit
is changed over by closing contact Hx to the setting (Protection mode, Reduced,
Comfort, Comfort) selected under "Changeover actions".
The settings are made on the following operating lines:
line 900 "Changeover actions" for heating circuit 1
line 969 "Changeover actions" for cooling circuit 1
line 1200 "Changeover actions" for heating circuit 2
line 1500 "Changeover actions" for heating circuit 3
line 1680 "Changeover actions" for DHW heating
When the contract is opened, the various consumers return to the operating mode
as per the original setting and the time switch program.
The contact is used to remotely control the operating mode (e.g. using a telephone
remote switch). When the contact is closed, local operation of the operating mode
is locked.
The settings that impact heating circuit 1 always refer to heating circuit 1 / cooling
circuit 1.
The present operating mode for DHW charging is changed over by closing contact
Hx to the setting (Off, On) selected under "Changeover actions".
Changeover of DHW charging is only possible in setting 1 (HCs+DHW) and setting
2 (DHW).
When DHW charging is deactivated, frost protection remains ensured.
Heat generation lock (digital)
The heat source is locked via terminals HX.
All temperature requests made by the heating circuits and by DHW are ignored.
Frost protection for the boiler will be maintained.
The chimney sweep function can be activated although the heat generation lock is
switched on.
User manual RVS43.345
The settings in detail
CE1U2354en_021
2013-09-02