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10-08-2008, 12:06 AM #27
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i posted this last night but it seems to have disappeared so here it is again...more or less.
Originally Posted by badtech
0F is the lowest setpoint you can have.
Trane has 6 menus in the controller. the other 2 menus are "hidden" and you need the password to access it. Trane hid it really well...in the IOM on page 93...duh!
i think that you may have some inaccurate sensors (sat evap temp and/or comp temp sensor), so i would check them against a well known thermocouple. but like i said earlier, get those values and get your glycol levels up.
running codes...
74: Run Normal
7E: Run Unload
77: Run Evap Limit
the chiller will run to maintain the load until the "saturated evap temp" hits the number programmed into menu #41. it will then unload (code 77) to maintain the "saturated evap temp" above its minimum setpoint (menu #41). at this point you will start losing your load.
good luck.Time to get my nerd on!
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10-08-2008, 05:03 PM #28
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Six menus ???? you must be thinking about the chinese take away down the street (LOL) theres only five that I know of ??? Graham
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10-08-2008, 05:20 PM #29
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There are six (6) menu's but it can be argued that there ony 5. They are:
Operating Display - Menu #0
Service #1 Display - Menu #1
Service #2 Display - Menu #2
Auxillary Options Display - Menu #3
Factory Display - Menu #4
Factory Display - Menu #5
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10-08-2008, 06:06 PM #30
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menu P0. Originally Posted by graham
must be computer guys who came up with menus that start at 0!
good luck.Time to get my nerd on!
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10-08-2008, 06:29 PM #31
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i
You bend em" I"ll mend em" !!!!!!!
I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
Whooo Hooo spring at last , time to get the toys out ........vrrrroooooom !!!!
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10-08-2008, 06:30 PM #32
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Okay. Okay There are Five Menus in which control setpoints and parameters may be selected or adjusted ... is that better ?????? I hate computer geeks ??????? not you jay .
You bend em" I"ll mend em" !!!!!!!
I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
Whooo Hooo spring at last , time to get the toys out ........vrrrroooooom !!!!
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10-08-2008, 09:37 PM #33
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dittos to you too! Originally Posted by graham
good luck.Time to get my nerd on!
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10-22-2008, 09:58 PM #34
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sorry
Hey guys I have not forgotten about you. I have been busy working on other stuff around campus. All of your guys input is great. I found that two of my pump drives in the building were put in bypass. Can you believe that crap. I found one too be working good and the other had a bad dc buss fuse on order now. graham, your help was tremendous. I have gotten with the local trane tech guy and have a nice binder on service bulletins for the Rtaa chillers. I will not go this long on checking in again! thanks to everyone badtech Oh hell I have been working on a Pool Pak and Carrier chiller. JUnk!
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