Rtha Iom

[duke of earl]

Anyone have an IOM for the Trane RTHA Chillers? I have B,C,and D, but no A.
Also any helpful bulletins would be welcome.

Thanks

[r404a]

I'll see what I have on PDF and will send to you.


r404a

[r404a]

Duke,

Couldn't send IOM due to size, but sent over service bulletin 5A which superceeded 5, basically the troubleshooters guide similar to CVHE 22 and 32. Are you building ice?

r404a

[james2007]

For your reference.
http://rapidshare.com/files/106618525/RTHA-IOM-1A.pdf.html
http://rapidshare.com/files/106620080/CTV-SVX07A-EN_AdaptiView_Control.pdf.html

RTHA-IN-1 Series R Water Cooled Hermetic Centravac
RTHA-IOM-1A
RTHA-SB-1 UCM Ribbon Cable Abrasion on RTHA Units
RTHA-SB-10 Model RTHA Oil and Refrigerant Filter Replacement
RTHA-SB-11 Flow Switch Replacement With A Differential Oil Pressure Swicth
RTHA-SB-12 Load and unload solenoid valve check procedure
RTHA-SB-13 Model RTHA Series R CenTraVac E4 Phase
RTHA-SB-14 RTHA Disassembly Dimensions for Limited Access Installations
RTHA-SB-15 18 Model RTHA Compressor Component Disassembly
RTHA-SB-16 Motor Burn Cleanup Procedure
RTHA-SB-17 Refrigerant pumpdown evacuationprocedure point for the recovery of HCFC-22
RTHA-SB-18 Refrigerant and oil shutoff valve
RTHA-SB-19 RTHA bF2 Low Oil Flow Diagnostic
RTHA-SB-2 Compressor oil heater block replacement
RTHA-SB-20 Replacement of Active Oil Return Module
RTHA-SB-3 Series R CenTraVac Oil Line Modification
RTHA-SB-4 Oil cooler modification kit
RRTHA-SB-5 Control Operation, Setup and Troubleshooting for RTHA
RTHA-SB-5A Control Operation, Setup and Troubleshooting for RTHA
RTHA-SB-6 Model RTHA Series R CenTraVac Superheat Parameters
RTHA-SB-6A Refrigerant level check procedure
RTHA-SB-7 Model RTHA Series R CenTraVac Designators
RTHA-SB-8 Ice-making panel
RTHA-SB-9 18 Model RTHA Series R CentraVac Oil Screen Addition
RTHA-W-1B Wiring
RTHA-W-2A Wiring

[jsaltre]

Hi, anyone could send me the RTHA-SB-19?

We service three RTHA450 chillers and one of them lost its AOR module. Some one can help?

Thx in advance.

[bc guy]

Hi, anyone could send me the RTHA-SB-19?

We service three RTHA450 chillers and one of them lost its AOR module. Some one can help?

Thx in advance.


Jayguy gave this to me,I'll pass it on.....

[jsaltre]

Thank you for your prompt reply!

[jsaltre]

Ok, I could not find any useful information on the SB-19. The problem we are having is that on one of the RTHA450 the AOR module burnt, and as you know the module is not longer produced.

We are trying to repair the module but we haven't succeed yet. Somebody knows some way of solving this problem? We can not just bypass the module has suggested on SB 20 because we are actually having oil loss from the compressor.

[jayguy]

Ok, I could not find any useful information on the SB-19. The problem we are having is that on one of the RTHA450 the AOR module burnt, and as you know the module is not longer produced.

We are trying to repair the module but we haven't succeed yet. Somebody knows some way of solving this problem? We can not just bypass the module has suggested on SB 20 because we are actually having oil loss from the compressor.

i have not had to perform this procedure before...so you are on your own...but if you have a burned up board...i would perform the procedure in SB20 anyway...sounds like it is that or buy a new chiller.

let us know what happens.

we all like to learn!

good luck.

[r404a]

jsaltre,
email me.

r404a

[ga1279]

One of those bulletin I think is was SB-19 Had a lot of repiping, moving oil pick-up locations and dumping it close to the compressor suction. It also had a re-wire that basically left the oil return always on. If your module burnt up is the hot gas solenoid coil from the active oil return still good or did ir burn out also. If it were me I would do the wiring changes and let the eductors run always...JMHO

ga1279

[jsaltre]

One of those bulletin I think is was SB-19 Had a lot of repiping, moving oil pick-up locations and dumping it close to the compressor suction. It also had a re-wire that basically left the oil return always on. If your module burnt up is the hot gas solenoid coil from the active oil return still good or did ir burn out also. If it were me I would do the wiring changes and let the eductors run always...JMHO

ga1279

Yes, that was what I thought. To let the recovery system always on. However, at the end of SB20 it says:

"CAUTION: CATASTROPHIC DAMAGE TO THE COMPRESSOR WILL OCCUR IF THE "CORRECTIVE ACTION" PROCEDURES ARE COMPLETED WHEN ACTUAL OIL LOSS IN THE COMPRESSOR IS OCCURING. DO NOT BY-PASS THE AOR MODULE IF THE UNIT IS EXPERIENCING ACTUAL OIL LOSS FROM THE OIL SEPARATOR. REFER YO RTHA-SB-19 FOR NECESSARY MODIFICATIONS NEEDED TO RETURN OIL"

I am not sure to understand what it means with "actual oil loss from the oil separator".

I also think that having the recovery system always active will decrease the chiller efficiency considerably.

Suggestions?

[ga1279]

You have a valid point, If you are loosing oil from your seperator then it will be in the evaporator or on the floor. If it is being carried out of the oil seperator that low superheat or damage to the internals of the seperator. Is it making any strange noise ? If so the seperator housing would have to be removed and all the inpingment baffles and screens checked. The superheat should be 25*- 28* for a RTHA-450. How much oil is in the evaporator ? If it were my customer I would check the oil % in the evap. and if it is any amount over .10% I would check the seperator oil level and wire the AOL wiring as stated before in the bulletin. I would re-check the level in 24 hours of operation, if okay let it go 72 hours and re-check and if it stays good leave it alone. I assume this machine stays pretty loaded allthe time. I had to do this to a couple of machines that do thermal storage (ice building) They came from the factory with oil-15 and a constant VI control. Change oil to oil-31 and did the rewire and they've been running ever since and that was 15 years ago. I see them quarterly...... Oh, don't worry about efficiency loss it's minimal as you are only taking discharge gas, but you are removing oil from the evaporator were it does not help the cooling. ga1279

[stuntman75]

Does anyone have these on PDF anymore?

RTHA-IN-1 Series R Water Cooled Hermetic Centravac
RTHA-IOM-1A
RTHA-SB-1 UCM Ribbon Cable Abrasion on RTHA Units
RTHA-SB-10 Model RTHA Oil and Refrigerant Filter Replacement
RTHA-SB-11 Flow Switch Replacement With A Differential Oil Pressure Swicth
RTHA-SB-12 Load and unload solenoid valve check procedure
RTHA-SB-13 Model RTHA Series R CenTraVac E4 Phase
RTHA-SB-14 RTHA Disassembly Dimensions for Limited Access Installations
RTHA-SB-15 18 Model RTHA Compressor Component Disassembly
RTHA-SB-16 Motor Burn Cleanup Procedure
RTHA-SB-17 Refrigerant pumpdown evacuationprocedure point for the recovery of HCFC-22
RTHA-SB-18 Refrigerant and oil shutoff valve
RTHA-SB-19 RTHA bF2 Low Oil Flow Diagnostic
RTHA-SB-2 Compressor oil heater block replacement
RTHA-SB-20 Replacement of Active Oil Return Module
RTHA-SB-3 Series R CenTraVac Oil Line Modification
RTHA-SB-4 Oil cooler modification kit
RRTHA-SB-5 Control Operation, Setup and Troubleshooting for RTHA
RTHA-SB-5A Control Operation, Setup and Troubleshooting for RTHA
RTHA-SB-6 Model RTHA Series R CenTraVac Superheat Parameters
RTHA-SB-6A Refrigerant level check procedure
RTHA-SB-7 Model RTHA Series R CenTraVac Designators
RTHA-SB-8 Ice-making panel
RTHA-SB-9 18 Model RTHA Series R CentraVac Oil Screen Addition
RTHA-W-1B Wiring
RTHA-W-2A Wiring