GB - 16
Installation instructions supplement
38YLS…G units are designed to work in North European
climates.
These versions are identified on the 5th digit, "S" of their
code number.
R-410A versions are identified on the 8th digit “G” of their
code number.
They differ from the standard ones for the following factory
fitted accessoiries: head pressure controller temperature
sensor (HPC) and loss of refrigerant pressure switch
(LRPS).
Operating range
Minimum ambient temperature:
–15
°
C
Power supply
Nominal single-phase voltage:
230V ~ 50Hz
Operating voltage limits
min.
198V
max.
264V
Features
– HPC and HIP Remote Manual Reset
Low ambient head pressure controller (HPC)
temperature sensor type for monosplit.
Printed circuit board (PCB), bare with insulation
coating, quick connection terminals, Heat Pump
select terminal.
The head pressure controller allows operation in
cooling mode up to –15
°
C ambient temperature
keeping the condensing temperature always above
41
°
C - 42
°
C.
The “HPC” automatically feels the possible heating
mode working, allowing in this case the outdoor unit
fan motor to operate at full speed.
– LRPS Loss of refrigerant pressure switch: brazed between
outdoor coil and expansion device when with unit is
working, the pressure “high side” drops below 345kPa
(3.45 bar; 50 psig) for refrigerant losses, the
compressor cannot restart.
Set point
– open at 345 kPa (3.45 bar; 50 psig) pressure
– close at 650 kPa (6.5 bar; 95 psig) pressure
햲
Temperature sensor
햳
High pressure cut-out
햴
Loss of refrigerant pressure switch
햵
Anti freeze thermostat
햶
Crankcase heater
햷
Pressure service port
Indoor unit
Heat pump
38YLS...G
Outdoor unit
