Parameter settings
To optimize control performance, use the local HMI to enter parameter mode and adjust a number of control parameters. All control parameter settings are retained after power failure.
Proceed as follows to change the control parameters:
|
| Or |
|
|
|
|
|
|
| Press and hold the + and - buttons simultaneously for more than 3 seconds. |
| Service level: Release the buttons, and within 2 seconds, press and hold + until Pxx is displayed. |
| Press + or - (< or >) to access the desired parameter and the value of the selected parameter is displayed at the same time. |
| Press |
| Press + or - to increase/decrease or select the value of the current parameter during editing. |
| Press |
| Press |
(
) to edit the value of the required parameter.
(
) to cancel the change, and repeat steps 3 to 5 to change more parameters.
(
) to exit parameter setting mode.Reload factory setting
- Select parameter P71 and set it to 1.
- The factory settings of the control parameters are reloaded.
- “- - -” is displayed during reload.
Control parameters
Service level
Parameter | Description | Factory setting | Setting range |
|---|---|---|---|
P01 * | Select VRF mode | 1 | 0 = AUTO/HEAT/COOL/FAN/Dehumidification 1 = HEAT/COOL/FAN/Dehumidification 2 = HEAT/COOL/FAN 3 = HEAT/COOL 4 = HEAT/FAN 5 = COOL/FAN/Dehumidification 6 = COOL/FAN |
P02 * | Operation using operating mode selector | 1 | 1 = Comfort – Protection 2 = Comfort – Economy – Protection |
P03 | Temperature display resolution | 1 | 0 = 0.5 K 1 = 1 K |
P04 | Unit | 0 | 0 = ℃ (Celsius) 1 = °F (Fahrenheit) |
P05 | Measured value correction (built-in sensor only) | 0 | -5…5 K |
P06 | Standard display | 0 | 0 = Room temperature 1 = Setpoint 2 = BUS temperature |
P08 | Comfort basic setpoint | 21 ℃ | 5…40 ℃ |
P09 | Minimum setpoint for Comfort | 5 ℃ | 5 ℃…P10 (P10 = 40 ℃ max.) |
P10 | Maximum setpoint for Comfort | 35 ℃ | (P09 = 5 ℃ min.) P09…40 ℃ |
P11 | Heating setpoint for Economy | 15 ℃ | 5…40 ℃ |
P14 | Keylock | 0 | 0 = Unlock 1 = Setpoint & fan buttons adjustment only 2 = Full lock |
P25 * | Select EXT/INT circulation | 0 | 0 = Disable 1 = Enable |
P26 | FAU ECO mode Select time ratio within one hour | 1 | 1 = 1:5 2 = 2:4 3 = 3:3 4 = 4:2 5 = 5:1 |
P27 | Operating mode after power failure | 0 | 0 = Previous operating mode 1 = OFF 2 = ON (Normal mode) |
P28 | Timer with delay Off (0 up to 23 hours, 0.5 h) | 1 | 0 = Disable 1 = Enable |
Note
* The parameters are critical and must be set according to the equipment selected during commissioning.
Expert level
Parameter | Description | Factory setting | Setting range |
|---|---|---|---|
P30 | Heating P-band Xp/switching differential | 2 K | 0.5…6 K |
|
P38 * |
Input X1 |
0 |
0 = --- (no function) 1 = Floor heating limitation sensor (NTC 3k) 2 = Floor heating limitation sensor (NTC 10k) |
|
P48 |
2-pos output minimum On time |
1 min |
1...20 min |
|
P49 |
2-pos output minimum Off time |
1 min |
1...20 min |
|
P51 * |
Floor heating temperature limitation |
0 |
0 = Off or 10...50 °C |
P53 * | VRF fan type selection | 3 | 1 = 1-speed 2 = 2-speed 3 = 3-speed 4 = 4-speed 5 = 5-speed 6 = 6-speed 7 = 7-speed |
P54 * | FAU fan type selection | 3 | 1 = 1-speed 2 = 2-speed 3 = 3-speed 4 = DC 0...10 V (ECM fan) |
P55 | ECM fan max. output | 80 % | ECM fan min…100 % |
P56 | ECM fan min. output | 30 % | 1 %...ECM fan max. |
P59 | Fan minimum On time | 2 min | 1...6 min |
|
P65 * |
Heating setpoint in Protection mode |
8 ℃ |
OFF, 5 ℃…Wcoolprot; |
P71 | Restore factory setting | 0 | 0 = Disable 1 = Reload start |
P81 * | Device address | 247 | 1…247 |
P82 * | Modbus baud rate | 2 | 1 = 9600 bps 2 = 19200 bps 3 = 38400 bps 4 = 57600 bps |
P83 * | Modbus data frame format | 0 | 0 = 1/8/E/1 1 = 1/8/O/1 2 = 1/8/N/1 3 = 1/8/N/2 |
P98 * | Enable Chinese text display | 1 | 1 = Enable |
Note
* The parameters are critical and must be set according to the equipment selected during commissioning.
Expert level (diagnostics & tests)
Parameter | Description | Range | Dependencies |
|---|---|---|---|
d02 | X1 state | If P38 = 0: "---" = function not selected If P38 = 1 / 2 but no sensor connection: 0 = no sensor Others: 0…50 °C = Current temperature value (for AI) | |
d06 | Software version | xxx is displayed, e.g. 010 | |
d07 | Fresh air unit DC output check | 0 = 0 % output 1...100 = 1 % to 100 % output | P53 |
d08 | Fresh air unit (FAU) relay output check Q1 to Q3 are NO relays (normal open) | 0 = All relays open 1 = Close only Q1 2 = Close only Q2 3 = Close only Q3 5 = Close only Q5 6 = All relays closed | P25, P54 |
d10 | FAU – active EXT/INT circulation damper | OPE = Open (normal position) CLO = Close | P25 |
d12 | Floor heating NO output state (Q14) Diagnosis | OPE = Open CLO = Close |