ECH 200 BD
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• 5= Compressor 2 thermal switch
• 6= Request for second compressor (step)
Configuration of AI4 if configured as a digital input (Pa H08=2)
• 0= Compressor thermal switch
• 1= Fan thermal switch
• 2= Flow switch
• 3= Remote Heat/Cool
• 4= Remote ON-OFF
• 5= Compressor 2 thermal switch
• 6= Request for second compressor (step)
Configuration of output NO2
• 0= Pump
• 1= Internal fan step 1
Configuration of output relay NO3
• 0= Reversal
• 1= Internal fan step 3
• 2= second compressor (step)
Configuration of output relay NO4
• 0= Anti-freeze electrical heaters
• 1= Internal fan step 2
• 2= Boiler
Optional analogue output configuration
• 0= open Collector output for second compressor
• 1= fan speed 4-20 mA output
• 2= fan speed 0-10 V output
Configuration of serial protocol (not used)
• 0= Standard
• 1= INVENSYS
Selection of operating mode
May be used to select which input determines operation in Heating/Cooling mode
• 0= Selection from keyboard
• 1= Selection from digital input
• 2= Selection from analogue input (probe Al4)
Presence of heat pumpt
• 0= Heat pump absent
• 1= Heat pump present
Heating mode set point
If mode selecton from analogue input is enabled, this is the value of Al4 below which the control will switch to “heating”
mode
Mode selection differential
If mode selection from analogue input is enabled, this is the temperature differential for switching to “cooling” mode
Enable dynamic set point
Enables the function
• 0= Dynamic set point disabled
• 1= Dynamic set point enabled
Dynamic set point offset in
cooling mode
The maximum value that may be added to the set point in “cooling” mode
Dynamic set point offset in heating mode
The maximum value that may be added to the set point in “heating” mode
Outdoor temperature dynamic set point in cooling mode
The temperature above which the set point offset is zero in cooling mode.
Outdoor temperature dynamic set point in heating mode
The temperature above which the set point offset is zero in heating mode.
Outdoor temperature dynamic set point differential in cooling mode
May be used to set the differential for the outdoor temperature below which the maximum set point offset applies
Outdoor temperature dynamic set point differential in heating mode
May be used to set the differential for the outdoor temperature above which the maximum offset applies.
Reversing valve polarity
• relay ON in cool
• relay ON in heat
Offset AI1,
Offset AI2,
Offset AI4
These parameters may be used to compensate the error that may occur between the temperature reading and the actual
temperature or pressure.
Offset AI3
This parameter may be used to compensate the error that may occur between the temperature or pressure reading and
the actual temperature or pressure.
mains frequency
• 0= mains frequency 50 Hz
• 1= mains frequency 60 Hz
Family serial address,
Device serial address
May be used to select serial address. Both normally 0.
User password
May be used to enter a parameter for access to level two parameters.
Copy card write password
The password that must be entered to copy parameters to the copy card.
Number of compressors per circuit
• 1= 1 compressor
Pa H21
Pa H22
Pa H23
Pa H24
Pa H25
Pa H26
Pa H27
Pa H28
Pa H29
Pa H30
Pa H31
Pa H32
Pa H33
Pa H34
Pa H35
Pa H36
Pa H37
Pa H38
Pa H39
Pa H40
Pa H42
Pa H41
Pa H43
Pa H44
Pa H45
Pa H46
Pa H47
Pa H48
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