sauter EQJW146F002, Руководство пользователя

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114 EQJW146F002 EN
System-wide functions
In all systems without DHW heating or without heating circuit, only the Max. limit value for
the capacity can be specified. If the 'Max. limit' or 'Max. limit for heating' parameter is set to
AT, a four-point characteristic configured in CO1 > F11 - 1 allows the input of four capacity
limits for outdoor-temperature-compensated capacity limitation in addition to the outdoor,
flow and return flow temperature values.
All limits are adjusted as pulses per hour [pulses/h]. As the reading for the current pulse rate
P [pulse/h] (–> extended operating level, key number 1999) is calculated based on the time
interval between incoming pulses, the controller naturally cannot react immediately to every
sudden capacity change in the system.
The flow set point of the control circuit RK1 is reduced when the pulse rate reaches the cur-
rently valid maximum limit. The Limiting factor determines how strongly the controller re-
sponds.
Example to determine the limit:
If a capacity of 30 kW is to be limited, the following limit must be set in a heat meter, which
issues one pulse per kilowatt hour:
P =
30 kW
= 30 pulse/h
1 kWh/
pulse
If the controller indicates CO5 > F00 - 1, any access to the return flow, flow rate and capaci-
ty settings is locked.
Functions WE Configuration
Capacity limitation in RK1 0
15 pulse/h
15 pulse/h
15 pulse/h
1.0 CO5 > F10 - 1
Max. limit: AT to 800 pulse/h
Max. limit for heating*: AT to 800 pulse/h
Max. limit for DHW*: 1 to 800 pulse/h
Limiting factor: 0.1 to 10.0
Capacity limitation in RK1 with meter bus 0 CO6 > F12 - 0
* Not in systems Anl. 1.0, 1.5-1.9, 3.0, 3.5, 3.9, 4.0, 10.x, 11.x and 16.x
Note