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Article no.: 5081200002 2022_10_17 Subject to technical change! Errors excepted.
Compact device = => Remote sensor device
VG Description
1. Demounting of the heating cost allocator from aluminum heat conductor.
2. Reset the manipulation/sabotage detection (display screen OPEN C) using the Engelmann customer software "Device
Monitor" (STBY appears in the display) (see also 5.3).
3. Attaching the remote sensor to the rear of the unit (see also 7.1).
4. Installation of the heat cost allocator at a location where the device integrated room temperature sensor is not
directly influenced by the heating output of the radiator. Please refer to the Engelmann mounting manual for the
mounting distances to be observed. The aluminum heat conductor is also used for wall mounting as a mounting
bracket for the heat cost allocator. After mounting the heat cost allocator on the aluminum heat conductor, the
internal configuration begins. The device detects the connected remote sensor (see 5.1).
5. Connect the sensor side of the remote sensor (ring eyelet) to the radiator with the remote sensor cover (please refer
to the Engelmann mounting manual for the required mounting method).
Points 4 and 5 can also be carried out in the reverse order.
Remote sensor device = => Compact device
VG
Description
1. Disassembly of the heat cost allocator
with attached remote sensor
from the aluminum heat conductor (OPEN C
appears in the display).
Watch out!!!
It is absolutely necessary that the remote sensor remains connected during the
disassembly of the heat cost allocator until the manipulation/sabotage detection has been reset by software (see VG
2).
2. Reset manipulation/sabotage detection (OPEN C) with the help of the Engelmann customer software "Device
Monitor" (STBY appears in the display) (see also 5.3).
3. Now the remote sensor can be disconnected from the device.
4. The heat cost allocator can now be used again as a compact device and mounted on the radiator.
5. After mounting the heating cost allocator on the aluminum heat conductor, the internal configuration begins. The
device is recognized as a compact device (see also 5.1).
It is important to note that different Kc values are required depending on the application mode (compact or
remote sensor)!
8
Detection of Accumulated Heat
The detection of accumulated heat at HCA e2 is carried out by the internal calculation algorithm. Here are several
averages of detected temperature values calculated permanently. When these average values falls below a certain
threshold, the algorithm detects the heat accumulation and changes in the internal 1-sensor operation mode (1F
HEAt). If the threshold is exceeded again, it takes up to 6 hours to change back into the standard 2- sensor mode
and the heat accumulation signaling is terminated. The change in the 1-sensor (heat accumulation)-mode does not
affect the functionality of your HCA e2, due to the fact that this behavior is part of the internal calculation
algorithm and thus to the approval of the HCA e2.
9
Plug on / Manipulation (Plug off) Detection
The Engelmann heating cost allocator HCA e2 has a combined plug on / sabotage detection (plug off). Depending
on the mounting status (not mounted or mounted), program functions are called up during the action
mounting
or
during the action
demounting
/ sabotage. These status indicators are shown in the display.
9.1
Plug on detection
The HCA e2 has a plug on detection.
If the plug on detection is activated by mounting process for ≥ 5 sec. the operation “plug on” is triggered and
configuration starts (see 5.1)
This initiates the device-internal configuration (display "CONFIG / CONF FF") and the HCA e2 changes to the
operating mode; the radio transmission (radio version) starts automatically (see 11.2.6)
9.2
Manipulation detection (plug off detection)
The HCA e2 has a manipulation detection (plug off detection).
