View Full Version : Mitsubishi par 21 controller temp issue
Cmsaircon
29-11-2013, 04:47 PM
Hi all ... I'm attending site tomorrow to investigate a report that , the par 21 controllers are reading set point 21*c and room temp is also reading 21*c although people are complaint it's too hot in there . They have apparently got a thermoter in the room which is reading 25*c ......... How is this a possible problem ? Has anyone got any thoughts ?
I'm visiting site first thing in morning to check this out .
Thanks in advance
Colin
Brian_UK
29-11-2013, 08:49 PM
The possible problem sadly is the people in the office.
Check the air filter otherwise lack of airflow can create problems.
frank
29-11-2013, 09:32 PM
....and if their thermometer is from the pound shop don't believe it's actually 21C in the office
install monkey
29-11-2013, 10:22 PM
enable the room sensor in the controller- if its within the conditioned space- u need to go in the setting mode- think its no02 3 from memory
http://www.mediafire.com/view/iyxnw41e87dvc17/mitsi%20PAR-21MAA(2).pdf
click on the link above- for manual
install monkey
29-11-2013, 10:23 PM
its not set at 21 heat is it?
Cmsaircon
12-12-2013, 03:56 PM
Just an update for everyone .. The problem was simply that all units had there set points changed to read from the par21 controller , and all the controllers had been installed on cold exterior walls that had no insulation so by the time the wall temp had changed to 21*c, everyone under the grills had endured 40*c heat blasting on them for a few hours ....
Removed the set points from controlers , Changed set point positions to read from more accurate places around the office using sensors ... Problem solved
Thanks to all who posted
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