Once Per Day With A Forward Shift Of 2.5 Hours Setting 0; Several Times Per Day With A Forward Shift Of 1 Hour Setting 1; Type Of D.h.w. Demand - Siemens RVA47.320 User Manual

Effect
Benefit
Description
Note
Setting
Effect
Siemens Building Technologies
HVAC Products
According to the selection made, the controller releases d.h.w. heating either once or
several times per day and adjusts the forward shift accordingly.
Setting
0
1
4.40.1 Once per day with a forward shift of 2.5 hours
Setting 0
The number of daily releases for d.h.w. heating at the nominal temperature setpoint is
limited to one. Also with this setting, the switch-on point is shifted forward by 2.5 hours
against the range selected on line 123.
On days where space heating at the nominal room temperature setpoint is provided for
24 hours, d.h.w. heating is released at midnight for 2.5 hours.
4.40.2 Several times per day with a forward shift of 1 hour
Setting 1
The number of d.h.w. charging cycles will not be limited. Also with this setting, the
switch-on point is shifted forward by one hour against the range selected on line 123.
4.41

Type of d.h.w. demand

•
Possibility of using a d.h.w. storage tanks equipped with a control thermostat
Defines the type of d.h.w. control (via d.h.w. sensor or control thermostat).
Setting of this function has an impact on automatic generation of the type of plant.
Operating line 53.
1. Press the operating line selection buttons to select operating line 125.
2. Press the + / - buttons to select the type of d.h.w. demand.
Setting range
0 / 1
By making this setting, the controller takes into account the signal fed to it by the d.h.w.
sensor connected to terminal B3.
Entry:
0: Sensor: the temperature measured with the sensor connected to terminal B3 is
used for the control of the d.h.w. temperature.
1: Control thermostat: the switching status of the control thermostat connected to
terminal B3 is used for the control of the d.h.w. temperature.
Basic Documentation RVA47.320
Description of the heating engineer settings
Charging / day
One
Several
Unit
Increment
Forward shift
2.5 hours
1 hourStunde
Factory setting
0
89/166
CE1P2379E
15.07.2002