Make: Mitsubishi Mini-split Multi Unit. Model: Outdoor Unit MXZ-4C36na, Indoor unit X3 MSZ-GL12na-u1 How identified: DCM
Power Specs:Power Supply Voltage, Phase, Hertz 208 / 230V, 1-Phase, 60 Hz Recommended Fuse/Breaker Size A 25 MCA A 22.1 Operating Wattages: Constantly varies. Typical average 700-1200w. Total usage in Feb. was 346.8 kWh
Did some additional reading on here about Heat pump Mini-splits and it could be what they call a pre-heat control. It may be this.