Service manual

Overview of the heating mode functions ESIE03–01

2–42 Part 2 – Functional Description

Defrost ending

RYP71-125L

The defrost operation ends:

P After 10 min, or

P As soon as one of the following conditions is met after 1 min or more:

- Outdoor heat exchanger temp. ≥ 10°C

- Discharge pipe temp. > 120°C.

Hot start after

defrosting

The hot start function is activated:

P 40 s after the defrosting ending, or

P When Tc > 34°C (indoor heat exchanger temperature).

Used input The defrost control uses the following inputs:

4 Hot start after defrost The unit remains in the hot start standby (indoor unit fan

OFF) mode for:

P 40 s after defrost ending, or

P Until the indoor heat exchanger temperature increases.

Note Control and time Description

Input

Connection on

indoor PCB

Connection on

outdoor PCB

Outdoor thermistor — R1T

Outdoor heat exchanger thermistor — R2T

Discharge pipe thermistor — R3T

Defrosting start temperature changeover switch — DS1-2

Defrosting forced time changeover switch — DS2-1