Time / Start Counter; Heat Pump Air - Siemens RVS41.813 User Manual

Time / start counter

Heat pump air

Fan K19
Process revers valve Y22
Evaporator temp
Temp diff defrost setpoint
Remain time defrost lock
Siemens Switzerland Ltd
HVAC Products
Line no. Operating line
8450 Hours run compressor 1
8451 Start counter compressor 1
8452 Hours run compressor 2
8453 Start counter compressor 2
These operating lines show the total number of operating hours and the number of
starts of compressor 1 and 2 since they were first commissioned.
Line no. Operating line
8454 Locking time HP
This operating line shows the total number of heat pump locking hours enforced by the
electric utility (via E6) since the time the heat pump was first commissioned.
Line no. Operating line
8455 Counter number of locks HP
This operating line shows the total number of heat pump locking actions enforced by
the electric utility (via E6) since the heat pump was first commissioned.
Line no. Operating line
8456 Hours run el flow
8457 Start counter el flow
The total number of operating hours and the number of starts of the electric immersion
heater in the flow can be read off here.
Line no. Operating line
8469 Fan speed
8470 Fan
8471 Process reversing valve
8475 Evaporator temp
8477 Temp diff defrost act value
8478 Temp diff defrost setpoint
8480 Remain time defrost lock
8481 Remain time forced defrost
8485 Number defrost attempts
This shows the current operating state of the fan for the air-to-water heat pump K19 (off
/ on).
This shows the current state of the process reversing valve (on = process reversed, off
= process runs normally).
This shows the current evaporator temperature at sensor B84.
Temp diff defrost act value
inlet (B91) and evaporator temperature (B84).
This shows the setpoint of the temperature difference between source inlet (B91) and
evaporator temperature (B84) to be reached to enable the evaporator to become
completely defrosted ( T defrosted).
This shows – after a successful or unsuccessful defrost process – how long the defrost
function is locked until a new defrost attempt may be made / new defrost process may
be carried out.
User manual RVS61.843, RVS41.813
6 The settings in detail
Shows the present temperature differential between source
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CE1U2355en_02
28. September 2009