HRX-OM-M090 
Chapter 5   Display and setting of various functions 
 
5.17 Accumulated time reset function  HRS Series 
 
 
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5.17 Accumulated time reset function 
5.17.1  Accumulated time reset function 
The alarms below are generated to notify the maintenance time.     
The product is not stopped for alarm. 
z Pump maintenance (AL28): Generated after 20,000h of accumulated 
operating time 
z Fan motor maintenance (AL29) : Generated after 20,000h of 
accumulated operating time. 
*For air-cooled type 
z Compressor maintenance (AL30): Generated after 50,000h of 
accumulated operating time 
To reset the alarm, reset the accumulated operating time. 
Reset the accumulated time after the replacement of parts (call for 
inspection service).   
 
5.17.2  Method of resetting accumulated time reset function 
The table below explains the setting items of the accumulated time reset and 
the initial values. 
 
Table 5.17-1  List of set accumulated time reset function 
Display   Item  Contents 
Initial value 
(Default setting) 
 
Pump accumulated 
operating time reset 
Reset the accumulated operating time of the 
pump. 
NO 
 
Fan motor 
accumulated 
operating time reset 
Reset the accumulated operating time of the 
fan motor. 
(For air-cooled type) 
NO 
 
Compressor 
accumulated 
operating time reset 
Reset the accumulated operating time of the 
compressor. 
NO 
Refer to each paragraph for the detail of resetting the accumulated operating 
time. 
 
1. Press and hold the [MENU] key for approx. 2 sec. 
Repeat pressing the key until the setting screen for key-lock [
] appears on the 
digital display.
 
PV
SV
   
PV
SV
   
PV
SV
 
 
Pump accumulated operating time reset 
2. Press the [SEL] key 14 times. 
The set screen of pump accumulated operating time reset is displayed on the digital 
display. 
PV
SV
 
[MENU] 
Press and 
hold
 
[MENU] 
Press and 
hold