Technische Alternative UVR 16x2 User Manual

Heating circuit control
60
OPERATION
Operating mode: This defines the mode in which the heating circuit controller operates:
o Standby The control function is switched off (frost protection remains active);
the set flow temperature is set to +5 °C
o Frost prot. The frost protection function is active. (See Frost protection section)
o Setback The controller has switched to setback mode
o Standard The controller has switched to heating (standard) mode
o Bank holiday The controller applies the Bank holiday operating mode from the Calendar
function
o Holiday The controller applies the Holiday operating mode from the Calendar function
o Party The controller applies the Party operating mode from the Calendar function
o Maintenance The Maintenance function is active (see Maintenance function).
The flow temperature is controlled to the T.flow max. setting specified in the Heat curve
menu (but the display for set flow temperature will show 5 °C). The Maintenance operating
mode remains active for three minutes after maintenance mode has been switched off.
o Ext set flow t The flow temperature is controlled to the setting specified in the Ext. set flow
temp. input variable.
o Fault A break in the lead to the outside temperature sensor (captured temperature
> 100 °C) would cause the heating circuit to shut down. In the worst-case scenario, that could
cause the system to be damaged by frost. To prevent that, if the outdoor temperatures
are clearly too high, then the heating circuit is operated according to a fixed outside
temperature of 0 °C, and Fault is displayed under Operation.
The operating mode displayed in the Parameters menu is only the internal setting of the
controller. In the internal operating status, there is also the Time/auto operating mode, in which the
Time condition status is active. If a room sensor (RAS, RASPT, RAS-PLUS or RAS-F) is defined
in the input variables, then the internal operating mode RAS is displayed instead. The operating
mode set on the room sensor is then displayed under that.
The operating modes Bank holiday, Holiday and Party can only be activated by means of the
Calendar function. The operating mode which is actually active can be seen in the function status
screen and in the output variables.
Table 1: Output variable as numeric value subject to operating mode
Table 1
Operating mode
Output variable
Numeric value
Inactive (Enable heating
circuit OFF)
0
Standard
1
Setback
2
Standby
3
Frost prot.
4
----
5
Holiday
6
Bank holiday
7
Party
8
Fault
9
Maintenance
10
Ext set flow t
11

Technische Alternative UVR 16x2 Specifications

General

Brand	Technische Alternative
Model	UVR 16x2
Category	Controller
Language	English