VERSION 3
05/01/2021
I
NSTALLATION AND
U
SAGE
G
UIDE
WINESP40DUPRO
Page 24
5.3
INFORMATION ABOUT DEVICE SAFETY SYSTEMS
This air conditioner has a manual reset high-pressure safety pressure switch and an automatic reset low-
pressure safety pressure switch
located between the valves and the electrical hatch of the outdoor
unit.
The high-pressure safety pressure switch protects the compressor if the pressure rises abnormally, which
may be due to several reasons (intake or discharge of the outdoor unit blocked, filter fouled, failure of the
fan of the outdoor unit, room in which the outdoor unit is located improperly ventilated, presence of obstacles
that impede the air flow, etc.)
If a safety system trips, you only need to reset the device after first removing the cause (see below). In all
other cases, a technician will need to be called in. The low-pressure safety device protects the compressor
in the event of certain operating problems (evaporator iced up, poor exchange in evaporator, outdoor
temperature too low at the start, indoor unit fan failure, no refrigerant due to a leak, etc.). However, since
the device is reset automatically, the air conditioner should be stopped and a technician should be called in
if the problem recurs.
