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Access 5.3 |
Reversible HP Supply air - Exhaust air |
Integrated reversible heat pump Supply air - Exhaust air |
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Variable |
Available options & Selection |
Note |
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Enable and configure heating and cooling sequences |
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Configuration > Functions > Function activation > Heating/Cooling sequence setup > SEQ-G Heating 2 |
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Name |
Heating 2 |
The "Heating 2" sequence set as DX type heater. Defrosting and other relevant settings can be enabled if necessary |
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Type of sequence |
| Heating | |
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Type of heater |
| DX | |
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... |
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Configuration > Functions > Function activation > Heating/Cooling sequence setup > SEQ-H Cooling 2 |
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Name |
Cooling 2 |
The "Cooling 2" sequence set as DX type cooler. Additional settings for indication can be enabled if necessary |
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Type of sequence |
| Cooling | |
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Type of cooler |
| DX | |
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... |
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Combine sequences under changeover function |
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Configuration > Functions > Function activation > Heating/Cooling sequence setup > Changeover 1 |
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Name |
Changeover 1 |
The "Heating 2" and "Cooling 2" sequences shall be combined under "Changeover 1" function with "Reversible heat pump Supply air-Exhaust air air" as changeover type |
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Changeover sequence for heating |
| Heating 2 | |
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Changeover sequence for cooling |
| Cooling 2 | |
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Type of changeover |
| Reversible heat pump Supply air-Exhaust air | |
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Interface to the external HP |
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Configuration > I/O allocation settings > |
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Digital inputs > Cooling/(Heating) changeover 1 |
Any available input / output |
Indication for the Access if external heat pump is in Heating or Cooling mode |
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Analog outputs > Changeover 1 |
Setting demand (heating or cooling) and heating/cooling capacity needed from the HP |
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Digital outputs > Changeover 1 |
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PID Settings |
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Configuration > PID controllers > Heating 2 |
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P-band |
[10] oC |
Adjust "Heating 2" PID settings if necessary |
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I-time |
[100] s |
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D-time |
[0] s |
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Configuration > PID controllers > Cooling 2 |
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P-band |
[10] oC |
Adjust "Cooling 2" PID settings if necessary |
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I-time |
[100] s |
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D-time |
[0] s |
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Flowchart settings |
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Configuration > Functions > Flow chart setup |
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Position Exchanger-Supply air |
| Reversible heat pump Supply air-Exhaust air Changeover 1 | |
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Adjust operational settings |
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Data & Settings > Temperature control > Changeover 1 |
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PID-delay after DX-compressor start |
[ 240 ] s |
Temperature control will be locked for the preset time after HP starts |
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Min run time DX machine |
[ 240 ] s |
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Data & Settings > Temperature control > Changeover 1 > Heating 2 |
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Digital start output start point |
[ 10 ] % |
By default heating will activate once control signal reaches 10% and deactivates when it drops bellow 1% |
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Digital start output stop point |
[ 1 ] % |
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Heating mode blocked when Extract air temperature < |
[ 18 ]oC |
Adjust conditions for heating to start |
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Heating mode blocked when Outdoor temperature > |
[ 15 ]oC |
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Heating mode blocked when exchanger-outdoor temperature < |
[ -20 ]oC |
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Block if supply air fan output signal < |
[ 0 ] % |
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Data & Settings > Temperature control > Changeover 1 > Cooling 2 |
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Digital start output start point |
[ 10 ] % |
By default Cooling will activate once control signal reaches 10% and deactivates when it drops bellow 1% |
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Digital start output stop point |
[ 1 ] % |
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Cooling mode blocked when Outdoor temperature > |
[ 16 ]oC |
Adjust conditions for cooling to start |
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Block if supply air fan output signal < |
[ 0 ] % |
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