Fröling SPS 4000, Руководство по обслуживанию

Страница: 33 / 144

Network circuit 1…2 frost protection temperature
If the temperature at the flow temperature sensor of the
network circuit falls below this value, the network pumps
are started to keep the water in motion.
Network circuit 1...2 mixing valve Kp
Specifies the gain of the stepped controller for the mixing
valve.
Network circuit 1...2 mixing valve Tn
Specifies the delay of the stepped controller for the mixing
valve.
Network circuit 1...2 mixing valve Ty
Defines the delay of the stepped controller for the mixing
valve.
Network circuit 1...2 pump max. control
The speed control of the feeder pump is limited by this
value (e.g. in case of a systemic adjustment of the
maximum pump speed).
Network circuit 1...2 pump minimum control
To adjust the minimum speed to the pump type (set mode
of pump in accordance with pump manufacturer).
Network circuit 1...2 pump management
Defines whether the pumps should be operated
alternatively or as a cascade.
Network circuit 1...2 min. source temperature
Minimum temperature in °C for the lower limit of the source
temperature of the network circuit.
Network circuit 1…2 return temperature setpoint
Defines the return temperature setpoint.
Network circuit 1...2 return temperature controller Kp
Specifies the gain of the stepped controller for the return
temperature controller.
Network circuit 1...2 return temperature controller Tn
Specifies the delay of the stepped controller for the return
temperature controller.
Network circuit 1...2 return temperature controller Ty
Defines the delay of the stepped controller for the return
temperature controller.
Network circuit 1...2 temperature difference between
setpoint and actual value for warning message
If the current flow temperature is lower than the calculated
flow temperature setpoint, a warning is issued.
Network circuit 1...2 flow temperature at an outside
temperature of +10°C
Defines the desired flow temperature in °C at an outside
temperature of +10°C. Together with the parameter “Flow
temperature at an outside temperature of -10°C”, a heating
curve is defined, with which the flow temperature of the
network circuit is calculated depending on the outside
temperature:
90
80
70
60
50
40
30
20
Flowtemperature
-10
External temperature
-15 -5 0 5 10 15 20
Example of
floor heating
Example of
radiators
Example:
The heating curve was defined with 60°C (at -10°C outside
temperature) and 40°C (at +10°C outside temperature). If
the current outside temperature is -2°C, for example, this
would result in a calculated flow temperature of 52°C. Both
values define the heating curve and are not to be
understood as limit values. With an outside temperature of
-13°C, for example, this would result in a calculated flow
temperature of 63°C.
Network circuit 1...2 flow temperature at an outside
temperature of -10°C
Defines the desired flow temperature in °C at an outside
temperature of -10°C for calculating the flow temperature
of the network circuit depending on the outside
temperature. For example, see parameter “Flow
temperature at an outside temperature of +10°C”.
Network circuit 1...2 max. flow temperature
Maximum temperature in °C for the upper limit of the flow
temperature of the network circuit. Calculated flow
temperatures, which according to the set heating curve are
higher, are reduced to this value.
Network circuit 1...2 min. flow temperature
Minimum temperature in °C for the lower limit of the flow
temperature of the network circuit. Calculated flow
temperatures, which according to the set heating curve are
lower, are increased to this value.
Network circuit 1…2 flow temperature setpoint
Defines the flow temperature setpoint if the fixed specified
setpoint is set.
Menus and parameters 5
Environment
Service manual SPS 4000 | B0960622_en 33