Overview of the heating mode functions ESIE02–01
2–46 Part 2 – Functional Description
3
1
2
4
5
3.7 Starting Outdoor Fan Control in Heating Mode
Applicable units RYP71-250B
Purpose The purpose of the starting outdoor fan control is to control the fan speed in function of the indoor and
outdoor unit air temperature.
Method The illustration below shows the fan starting control in heating mode.
■ LPS is not detected for 3 min after start-up.
■ The starting fan speed lasts 5 min. When the outside temperature is 10˚C or lower, the fan speed
stays at H for the first 5 s if it is switched from OFF to L.
Different fan
speeds
The table below explains the meaning of L, H and HH fan speed.
Used input The outdoor fan starting control in heating mode uses the following inputs:
9
4.5
-1
17 24
OFF OFF OFF
HRYP71-125B: OFF
RYP200-250B: L
H
OFF
HH H L
Outdoor unit air
temperature
Indoor unit air
temperature
Fan operation
71 100 and 125 200 and 250
1 fan
Upper fan
(MF1)
Lower fan
(MF2)
Fan 1 Fan 2
OFF OFF OFF OFF OFF OFF
L LLLHOFF
H HHHHH
HH HH HH HH H H
Input
Connection on
indoor PCB
Connection on
outdoor PCB
Outdoor thermistor — R1T
Suction thermistor R1T —
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