Hitachi Set Free mini-HNRQ1 Series, Service Manual

Page: 66 / 187

59
(2) Features of Check Mode 2
No. Item Data Name No. Item Data Name
1 q1 Inlet Air Temperature for I.U. 9 q9 Discharge Pressure
2 q2 Outlet Air Temperature for I.U. 10 qA Suction Pressure
3 q3 Liquid Pipe Temp. for I.U. 11 qb Target Frequency
4 q4 Outdoor Air Temp. 12 qC Operating Frequency
5 q5 Gas Pipe Temp. for I.U. 13 qd I.U. Expansion Valve (%)
6 q6 Evaporating Temp. at Heating for O.U. 14 qE O.U. Expansion Valve 1 (%)
7 q7 Condensing Temp. at Cooling for O.U. 15 qF Comp. Current
8 q8 Comp. Discharge Temp.
Note:
I.U.: Indoor Unit; O.U.: Outdoor Unit.
(3) Alarm History Display
The Alarm History Display is accessed from the Check Menu.
(A) The figure shows the normal mode interf ace.
(B) Press and hold “ ” for five seconds during the normal mode, and the history alarm code would
display. The codes can be checked by pressing “ ”or “ ”.
(C) Press the “ ” for five seconds or press ON/OFF “ ”, the alarm history display is disappeared and
it will show the normal mode interface.
The address of indoor unit
The No. of alarm code
Alarm code
Press and hold for five seconds
TROUBLESHOOTING