Trane CVHE LON Info
Anyone have a file that says what all the points are? I have nvi#'s and nvo#'s but cannot find a description to verify each.
It's a CVHE-320 according to the prints.
"How it can be considered "Open" is beyond me. Calling it "voyeur-ed" would be more accurate." pka LeroyMac, SkyIsBlue, fka Freddy-B, Mongo, IndyBlue
BIG Government = More Dependents
"Any 'standard' would be great if it didn't get bastardised by corporate self interest." MatrixTransform
Email send to address in profile.
When you talk, you are only repeating what you already know. But if you listen, you may learn something new. - Dalai Lama
Here's all the info I can pull:
1 (switch), Chiller Ena
2 (AI temp), Cool Setpt
5 (%), Capacity Limit
6 (HVAC Mode), Mode
7 (AI invalid), Heat Stpt
21 (AI invalid),BaseLdgSetpt
22 (switch) BaseLdgReg
3 (switch), OnOff
4 (temp), ActiveSetpt
8-9 (%), ActualCap, CapLim
10-13 (AI temp), LvgChW, EntChW, EntCndW, LvgCndW
14 (string output), AlarmDescr
15 (chlr status), ChillerStat
23-24 (state), StatusOutputs, CprsrsRunning
25-28 (switch) EvapWtrPum, EvapWtrFlow, CondWtrPump, CondWtrFlow
29-30, 32-33, 37, 41, 49, 51 (AI invalid) Flow rates, SecTemps, Refrig Temps, Oil Temps
31 (%) ActiveBLSetpt
34-35, 38-39, 44-47 (AI in water) Refrig Press
36, 40, 48, 50 (AI temp) EvapRfgtTempC1, CondRfgtTempC1, OilTempA, DischTempA
58 (AI btu/hr) Unit Power
Granted some of the values I could likely guess correctly, but I'd rather just know for sure.
*Never mind, I just found it in NL220. Weird the front end doesn't pull the point details in...
Last edited by crab master; 11-27-2012 at 08:44 AM.
Reason: * and added descriptions found in NL220
On the Chiller I interfaced with, the chiller enable needed to be commanded to 0% to stop and 100% to start. Setting up as a binary did not work. This chiller had a UC800 display.
All the Trane binarys are a 2 part SNVT. they require a true/false and also a %. You could write the % to 100 all the time and switch the binary on/off and it would accomplish the task.