Liebert hiross

[philjd26]

Hi, i sevice a couple of these units and i am looking for some manuals if not tips, all units only have the standard lcd and was wondering what it is capable of? What does t1 t2 etc etc ......mean?

Rgrs phil

[yanatahyana]

ok, t1 : return temperature, t2 supply temperature ( no recomend ), h1 :The humidity of the air entering the air conditioning
unit, ACT :This Value shows the actual Temp / Hum set point. for information detail please email yana_jastek@yahoo.co.id, YM :yantahyana

[coolments]

Hi phil

Been so long since i worked on these i dont remember much, one thing i do remember is the master password to unlock all functions on the controller was 501, maybe that helps you navigate in.

[yanatahyana]

for setting temperature use pasword 501, but for another setting can be use password 221, and for calibration use password 476

[dlisjak]

Hi my friend, can you supply me with some ICOM or service manual for this controler and machine! Where could I find it if you don't have it?

[dlisjak]

Hi, I have problem with my Hiross MATRIX machine. Problems are with alarm code 082-share room sensor failure! Which sensor is that? I have stand alone unit! t1,t2,t3 ok!please advice me what to do!

[texanul]

Another code is 149 446 445

[zcoco]

How can I disable the alarm sensor failed

[Leo1967]

passwords are 149-221-501 and 674 for calibrating all the probes.When on all Liebert Hiross you get an alarm indicating a faulty probe the first thing to do is check the machine has the correct programming,for example if you get a RSF (room sensor failure) on a direct expantion unit most likely there's a humidity setpoint set above 0 while the machine hasn't got a humidity probe!Same thing for water chillers,if you get a probe failure check if there's a setpoint (external temp or chilled water evap exit) set at a value (other than "NO") while the probe isn't installed.
Every unit has its own Microface-Hiromatic-Icom-powerface manual that's because on any of these boards you can put so many different EPROMS.A wrong parametre sometimes gives you a totally different alarm and you can get crazy!

[Leo1967]

to disable alarms just press the arrow up and wait til you get a code in the display (A1-A2A3 etc) then press again arrow up and enter button almost simultaniously.

[Tiesse]

to disable alarms just press the arrow up and wait til you get a code in the display (A1-A2A3 etc) then press again arrow up and enter button almost simultaniously.

This doesn't disable alarms, it resets them if the fault condition is noi longer present.

In regard to share room sensor failure, make sure that the controller is not set to a teamwork mode as if the units are standalone & they are trying to reference a sensor on another machine, this will cause the fault.