ESP = Energy Smart Performance
SRD173C Digital Outdoor Three Phase Includes - Includes LM7-D wired controller
SRM171E Ultima Indoor -
Includes 8 Zone Module & 20m 4 core Data cable for controller.


SRD173C Digital Outdoor Three Phase Includes - Includes LM7-D wired controller
SRM171E Ultima Indoor -
Includes 8 Zone Module & 20m 4 core Data cable for controller.
- Ultimate zoning capability to suit your lifestyle and saves even more energy
- Create and control up to 8 different temperature zones in your home
- Master controller sets master temperature for your home
- Individual Zone controller sets temperature for each of the individual zones
- Fully integrated 8 Zone controller
- Optional Zone sensors also available
- Advanced zoning system that varies airflow to a minimum zone
- Operate as little as 1 zone in your home. Ideal for those hot summer nights where you only want to keep your bedroom comfortable without wasting energy cooling the rest of your home.
- To maximise system efficiency, ESP Ultima™ has a factory preset maximum span of 4°C between individual zones and ±2°C between the master controller and individual zones.
- Incorporates the energy efficient design features of the award winning ESP Plus® air conditioning system
- Independent energy modelling indicates energy consumption can be reduced by up to 61%* vs conventional air conditioning systems
- Digital variable capacity compressor delivers 10 to 100% capacity for maximum performance
- Air Conditioning with Advanced Airflow Capability
- Quiet start Variable Fan Technology (VFT)
- Automatically senses when zones are on or off and intuitively adjusts air flow
- Quicker, more precise temperature control
- Sound Reduction System (SRS) to minimise sound levels
- Advanced humidity reduction vs standard cycling air conditioning systems
- Easy to operate slimline design master controller
- 7-day programmable controller with 24-hour timer
- In built temperature sensor
- Home automation compatible for ON/OFF control
- Easy to read display
- Optional secondary Master controller is ideal for 2 storey or large homes
- Optional secondary temperature sensor available
- Minimum Energy Performance Standards (MEPS) Compliant
- The ActronAir® Technical Support team is available to assist you with any enquiries
- 5 year Warranty*. For full warranty terms, click here >
- Backed up by the ActronAir® National Service Network to provide you with quick and reliable service when you need it



*Results may vary due to type of house, orientation, family lifestyle usage & location of house.
| MODEL | OUTDOOR | INDOOR | |
| ITEMS | SRD173C | SRM171E | |
| Power Supply | 400V / 3Ph + N / 50Hz | 230V / 1Ph + N / 50Hz | |
| Operation data | Cooling | Heating | |
| Nominal capacity | kW | 16.88 [1.69(Min.)-16.88(Max.)] | 17.93 [3.41(Min.)-17.93 (Max.)] |
| Input Power | kW | 5.02 | 4.81 |
| EER Rated | 3.36 | - | |
| COP Rated | - | 3.73 | |
| Dimensions H x W x D | mm | 1045 x 1460 x 580 | 412 x 1290 x 615 |
| Net weight | Kg | 176 | 62 |












