HRX-OM-O021
Chapter 5 Display and setting of various functions
HRS Series
5.19
Option J [Automatic fluid filling]
5-71
5.19 Option J [Automatic fluid filling]
5.19.1 Option J [Automatic fluid filling]
This function is available for customers who selected automatic fluid filling.
Refer “3.6 Option J Piping of
【
Automatic fluid filling
】
” for the installation of
the automatic fluid filling.
Piping to the automatic fluid filling port enables easy supply of the circulating
fluid through the level switch in the tank.
z
Starts supplying the circulating fluid automatically when the circulating
fluid amount in the tank is small.
z
Stops supplying the circulating fluid automatically when the circulating
fluid is filled in the tank.
z
Automatic fluid filling does not start when alarm of table 5-19-1 is
generated. Fluid filling stops if the filling is automatic.
Table
5.19-1
Table of alarms automatic fluid filling stops / does not start
Code
Description
Code
Description
AL02
High circulating fluid
discharge temp.
AL17
Refrigerant circuit pressure
(low pressure side) drop
AL05
High circulating fluid return
temp.
AL18
Compressor overload
AL06
High circulating fluid
discharge pressure
AL20
Memory error
AL07
Abnormal pump operation
AL22
Circulating fluid discharge
temp. sensor failure
AL10
High compressor intake
temp.
AL23
Circulating fluid return temp.
sensor failure
AL11
Low compressor intake
temp.
AL24
Compressor intake temp.
sensor failure
AL12
Low super heat temperature
AL25
Circulating fluid discharge
pressure sensor failure
AL13
High compressor discharge
pressure
AL26
Compressor discharge
pressure sensor failure
AL15
Refrigerant circuit pressure
(high pressure side) drop
AL27
Compressor intake pressure
sensor failure
AL16
Refrigerant circuit pressure
(low pressure side) rise
AL33
Water leakage
z
This function starts both in stand-by condition (power supply
switch is ON) and in operation.
z
The freezing of the automatic fluid filling circuit can not be
prevented if an anti-freezing function is used. To be arranged by the
user.