IVT C9 User Manual

Settings
6 720 643 409 (2010/03)
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15.6 External control
When an external input is connected, the control unit
performs functions which are set to Yes or is separated
from 0 (Room temperature). When the external input is
no longer connected, the control unit returns to normal
mode. Only installed functions are displayed.
There are functions for external input 1, external input 2
and external input for circuit 2, 3, etc.
> External input 1, 2
>> Block compressor
>> Block additional heat
>> Block heating at tripped underfloor temperature
limiter
>> Block heating
>> Room temperature
B Set the room temperature that should apply in the
event of enabled external control.
B Value > 0 °C enables the function.
>> Block hot water production
>> Start collector circuit pump
>> Alarm at low pressure in collector circuit
> External input circuit 2, 3...
>> Block heating at tripped underfloor temperature
limiter
>> Block heating
>> Room temperature
B Set the room temperature that should apply in the
event of enabled external control.
B Value > 0 °C enables the function.
Factory setting No
Alternative No/Yes
Tab. 112Blocking
Factory setting No
Alternative No/Yes
Tab. 113Blocking
Factory setting No
Alternative No/Yes
Tab. 114Blocking
This function requires the installation of a
safety thermostat to the floor heating circuit
and its connection to the external input.
Factory setting No
Alternative No/Yes
Tab. 115Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Tab. 116Room temperature
Factory setting No
Alternative No/Yes
Tab. 117Blocking
Factory setting No
Alternative No/Yes
Tab. 118Start collector circuit pump
Factory setting No
Alternative No/Yes
Tab. 119Alarm at low pressure in collector circuit
This function requires the installation of a
pressure switch in the collector circuit and
its connection to the external input. In the
event of incorrect pressure in the circuit, the
external input closes, triggering a category A
alarm (Æ Chapter 16.7).
Factory setting No
Alternative No/Yes
Tab. 120Blocking
Factory setting No
Alternative No/Yes
Tab. 121Blocking
Factory setting No (0.0 °C)
Lowest value 10.0 °C
Highest value 35.0 °C
Tab. 122Room temperature

IVT C9 Specifications

General

Brand	IVT
Model	C9
Category	Heat Pump
Language	English