sauter equitherm EQJW245, Руководство по эксплуатации

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EQJW245
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Commissioning
Room temperature recording
Various types of room temperature sensor can be connected:
0 = no room temperature recording •
1 = connect room sensor •
2 = connect EGS52/15 or EGT333 with room sensor •
3 = connect EGS52/15 or EGT333 without room sensor •
4 = the input (terminal 28) is not used as a room sensor but as a second fl ow •
sensor for domestic water preparation (see also chapter 0).
Room operating unit EGS52/15 allows you to switch over the controller‘s mode
remotely. Room operating unit EDB100 can also be connected via the device
bus and used to switch the mode over. The mode on the EQJW245 can also be
changed using a control station via Modbus. In case of contradictory commands,
the following priority applies: direct settings on EQJW245 have priority 1. A
setting using room operating unit EDB100 via device bus or a preset via Modbus
have priority 2. The setting via the binary input has priority 3. Settings on room
operating unit EGS52/15 have the lowest priority. If the setpoint for the room
temperature is changed via the setpoint transmitter of the EGS 52/15 or EGT 333
room operating units, it also changes the actual value for the room temperature at
the sensor input of the EQJW245. This, in turn, means that the fl ow temperature
and, therefore, the heating capacity, for the room are altered accordingly.
Connect room temperature heating 1
A room temperature sensor (resistance sensor or device bus) is required for this
function. The fl ow temperature setpoint is changed – in divergence from the
setpoint according to the heating characteristic – if the room temperature in the
reference room diverges from the room setpoint. The change in fl ow temperature
is limited to a maximum of ± 30K.
SP09 = 1 or 2 can be used to allow the room temperature connection to infl uence
the fl ow setpoint in one direction only. The meanings are:
0 = fl ow temperature is not changed, i.e. the room temperature connection is •
not enabled
1 = fl ow setpoint can only be reduced, i.e. the room temperature connection is •
only enabled if T
Ri
> T
Rs
2 = fl ow setpoint can only be increased, i.e. the room temperature connection •
is only enabled if T
Ri
< T
Rs
3 = fl ow setpoint can be reduced and increased, i.e. the room temperature •
connection is enabled if T
Ri
<> T
Rs
Scanning time for room temperature if heating 1 connected
If the room temperature connection is enabled, this SERVice parameter
determines the period within which one-off correction of the fl ow setpoint for
heating 1 can occur. In „heavy“ buildings with sluggish heating systems, a higher
value is more suitable than it would be for buildings of lightweight construction
and heating that reacts quickly. This time must not be too short, so as to prevent
control fl uctuations. The algorithm prevents hunting by changing the fl ow setpoint
SP08
SP09
SP10