Downlink Commands for Temperature Control Parameters

This section describes the downlink commands for temperature control related parameters.

Configure Installation Parameters

Command description:
Item Byte Command Value Example
Wiring Settings 2+3 8e00 Byte 1:
Bit Wire Value
7-6 W1 00=Disable, 01=Enable
5-4 O/B
3-2 G/GH
1-0 Y1

Byte 2: 00

Byte 3:

Bit Wire Value
3-2 GM 00=Disable, 01=Enable
1-0 GL
Enable Y1, W1 and GL: 8e00410001
Reversing Valve 2+1 8e01 00=Energize on Heat, 01=Energize on Cool (default) Set energize on Heat: 8e0100
Compressor and Auxiliary Heat Linkage 2+1 8e02 00=Disable (default), 01=Enable Enable: 8e0201
Fan Control during Heating 2+1 8e03 00=Thermostat (default), 01=HVAC System Set HVAC system: 8e0301
System Protection 2+1 7400 00=Disable (default), 01=Enable Enable: 740001
Minimum Running Duration 2+1 7401 Range: 1-60, Unit: min, Default: 5 Set 60 minutes: 74013c
Freeze Protection 2+1 7100 00=Disable (default), 01=Enable Enable: 710001
Freeze Protection Temperature 2+2 7101 INT16/100, Unit: °C, Range: 1~5, default: 3 Set 1°C: 71016400

Configure Temperature Control Basic Parameters

Command description:
Item Byte Command Value Example
System On/Off 1+1 6f 00=Off (default), 01=On System on: 6f01
Temperature Control Mode 2+1 6000 00=Heat (default), 02=Cool, 03=Auto Temperature control mode is Cool: 600002
Target Temperature Resolution 1+1 65 00=0.5 (default), 01=1 Target temperature resolution is 1: 6501
Target Temperature 1+3 61 Byte 1: 00=Heat, 02=Cool

Byte 2-3: target temperature, INT16/100, Unit: °C, Range: 5~35

 Cooling target temperature is 26°C: 6102280a
Target Temperature Tolerance 1+3 62 Byte 1: 00=Heat, 02=Cool

Byte 2-3: tolerance, INT16/100, Unit: °C, Range: 0.1~5

 Cooling target temperature tolerance is 1°C: 62026400
Target Temperature Regulation Range 1+5 63 Byte 1: 00=Heat, 02=Cool

Byte 2-3: Min. Range, INT16/100, Unit: °C, Range: 5~35

Byte 4-5: Max. Range, INT16/100, Unit: °C, Range: 5~35

 Cooling target temperature regulation range is 22 to 35 °C: 63029808ac0d
Target Humidity Range Min 2+2 7202 UINT16/10, Range: 0-100, Unit: %RH, Default: 40 Min. range is 50%RH: 7202f401
Target Humidity Range Max 2+2 7203 UINT16/10, Range: 0-100, Unit: %RH, Default: 80 Max. range is 70%RH: 7203bc02
Fan Mode 2+1 7000 00=Auto (default), 01=Circulate, 02=On, 03=Low Speed, 04=Medium Speed, 05=High Speed Fan mode is circulate: 700001
Fan Circulate Operation Time 2+1 7003 Range: 5-55, Unit: min/h, Default: 30 Set 55 min/h: 700337
Fan Regulate Humidity 2+1 7001 00=Disable (default), 01=Enable Enable: 700101
Fan Regulate Interval 2+1 7002 Range: 5-55, Unit: min/h, Default: 30 Set 55 min/h: 700237
Fan Delay 2+1 8200 00=Disable, 01=Enable (default) Disable: 820000
Fan Delay Duration 2+2 8201 Range: 30-3600, Unit: s, Default: 60 Set 30 seconds: 82013c00

Configure Energy Saving Parameters

Command description:
Item Byte Command Value Example
Energy Saving Settings 1+1 84 00=Disable (default), 01=Enable Enable: 8401
Level 1 Energy Saving 3+1 850000 00=Disable (default), 01=Enable Enable level 1 energy-saving: 85000001
Level 2 Energy Saving 3+1 850100 00=Disable (default), 01=Enable
Level 1 Vacant Duration 3+2 850001 UINT16, Range: 1-1440, Unit: min, Default: 480 Level 1 Vacant Duration is 60 minutes: 8500013c00
Level 2 Vacant Duration 3+2 850101 UINT16, Range: 1-1440, Unit: min, Default: 720
Level 1 Energy Saving Target Temperature Tolerance 3+2 850002 UINT16/100, Range: 0.1-5, Unit: °C, Default: 2 Level 1 Energy Saving Target Temperature Tolerance is 1°C: 8500026400
Level 2 Energy Saving Target Temperature Tolerance 3+2 850102 UINT16/100, Range: 0.1-5, Unit: °C, Default: 4

Configure Unilateral Tolerance

Command description:
Item Byte Command Value Example
Unilateral Tolerance 1+1 77 00=Disable (default), 01=Enable Enable: 7701

Control Stage Switch

Command description:
Item Byte Command Value Example
Setforward 2+1 8300

00=Disable, 01=Enable (default)

 Disable setback: 830100
Setback 2+1 8301

00=Disable, 01=Enable (default)
Heat Stage-up Switch Change Time 2+1 8302 Range: 1-30, Unit: min, Default: 5 Heat stage-up change time is 30 minutes, change value is 1°C: 83020583036400
Heat Stage-up Switch Change Value 2+2 8303 UINT16/100, Unit: °C, range: 0.5-5, default: 1
Cool Stage-up Switch Change Time 2+1 8304 Range: 1-30, Unit: min, Default: 5
Cool Stage-up Switch Change Value 2+2 8305 UINT16/100, Unit: °C, range: 0.5-5, default: 1
Temperature Delta 1 (ΔT1) 2+2 8306 UINT16/100, Unit: °C, range: 0-10, default: 3 ΔT1 is 2°C: 8306c800
Temperature Delta 2 (ΔT2) 2+2 8307 UINT16/100, Unit: °C, range: 0-10, default: 5
Note: ΔT2 > ΔT1