I have a Vykon AX with Distech ECP-410 controllers communicating over LON. The customer ask me to adjust PID settings. As a result, I used the Distech Smartinstaller to get the proper Jar files....
Type: Posts; User: basprofessional
I have a Vykon AX with Distech ECP-410 controllers communicating over LON. The customer ask me to adjust PID settings. As a result, I used the Distech Smartinstaller to get the proper Jar files....
Do you refer to the jar files, particularly the Distechcontrols .jar file ?
I am trying to change some PID parameters on a LON Distech programmable controller. I'm connected to the site with EC-Net AX. When I try to connect to the controller with the EC-gfxProgram wizard I...
I was asked to sequence two chillers using the base load method. The chillers are the same tonnage and are piped in parallel. The engineers wants the lag chiller to sequence on when the lead is 90%...
Hello,
I maintain a Honeywell Excel 15b controls system. The system repeatedly has "Node Crash," in its alarm log. What does this mean and how to I make it go away?
Hello,
The question pertains to a Honeywell Excel 15b and one alarm in particular. The alarm says "Node Crash"...Excel 15b. I assume this has to do with communication loss. However, can anyone shed...
I don't recall becasue I've been running the software with DOS Box for a while. I think the software may work but runs into problems later. If you get it to run standalone mode then great. Unless...
I can't really send you any software because ma Trane frowns upon such activites...Contact you're local Trane office...
I have Windows 7 and could not use any of my old DOS programs like UPCM. I had to install a third party DOS shell program called DOSBOX. The software allows the user to run old DOS programs. The...
NOSKILLTECH is absolutely correct. You will spend hours of your life learning things you will not get paid for. In addition, I've spent hours of my life rewriting code for free. If you like to be...
To be honest with you I don't always set the min CFM exactly at the min of the unit. However, if the system has old air handlers then I do becasue older units don't have high pressure safties like...
The password is 1111 and I believe the dip switches can disable the Tracker password. I'll get back you on BMN.
Scrooloose is correct about the min CFM setting and along with his other comments. However, you asked what the minimum CFM set point should be in VAS. Well, let’s understand what the primary purpose...
I believe the HyperTerminal settings are the same for Tracker as they are for Tracer 100. However, the baud rate may be different. I know the key strokes for both Track and Tracer 100 are the same....
I started out as a mechanic and moved over to controls about ten years ago. Controls are very cool but it is different. The work is less physically demanding but it is still demanding. Controls can...
You are correct, lower condenser water temps should be only used with refrigerant pumps. However, the lower condenser temps are not just limited to adaptive view units. Lower condenser temps can...
Here is some newer documentation concerning condenser water temperature. The information you’re looking for is on page 7.
If you’re interested service bulletin CVHE-CSB-40 tower water temp and the myth that Trane chillers need warm water. To paraphrase the service bulletin, if you maintain a 5 PSID across the condenser...
Yea it's only about 50 tons total compressor capacity. Irregarless, the system needs more condenser because the old one is under sized. I figured water would be the way to go.
Let me know if you need anything else...
What I meant was a small cooling tower recirculating the water. The water is reclaimed so the cost is minimal as far as water goes. I’m curious about the electrical cost with lower head pressures....
I'm in the process of upgrading a condenser for some coolers. I've thrown the idea of going water cooled at the customer. Does anyone know what the operating savings would be going from air cooled to...
It seems in my case the previous techs and owner just ignored the problem becasue of the automatic switch. I even had the relief valve blow because one of the switches failed from too much cycling....
This old DOS software is a little quarkery and I assume that you don't work with it much. I'll try and explain this the best I can with visuals. I've attached a Word doc going through the basic...
When the automatic switches were in place the customer would ignore the fluctuating temperatures. However, after installing the manual switches the customer wanted to address the high pressure...
I must ask someone’s opinion after being out of the refrigeration side of the business for a few years. I have a customer with several walk in freezers and coolers with automatic high pressure...
Thanks for the information, the controller sounds like it's staright foward. By the way, I'm already a controls freak
I have an Emerson 834-0400 controller for a refrigeration rack and it has never been setup. I'm not even sure if the controller even works. My question is, do I need some special software to setup...
I agree, baffles will be needed and will be installed later.
Putting a VFD on the fans was my first choice. However, the customer opted for the cheaper alternative (What a surprise), the anti-windmill devices mentioned below. For your information, the way the...
Give this a try...
I've considered some a spring closed type of damper on top of the condenser fans. The concept of having air get drawn through the condenser fan that is off does not seem efficient. However, I'm going...
I have a refrigeration system with multiple compressors sharing the same condenser section. The unit is configured so that two fans run per compressor. As a result, when two fans are running air will...
Here you go, have fun...
:cheers:
I have the regular EMTB-PG
That's typical corporate america paying the lowest wage they can for refrigeration mechanics.And Corporate america is getting exactly what they pay for. I guess it's called job security...:whistle:
The Activator is a device which plugs into the old DB-25 comm port of the computer. The Activator allows someone to add the amazing 16 color custom graphics to the BMN software...LMAO:grin2:. The BMN...
I'm checking the information you sent me and thanks for sending it. However, looking it over briefly I would assume the condenser coil needs to be a little larger in this application? Also, I assume...
Thanks for the responses it clears up a few questions I had. One last question, I understand it's more efficient to run with one large rack instead of a bunch of smaller compressors. Does anyone know...
Interesing, I wouldn't have guessed that about scrolls. Does that go for screws? I also assume water cooled is it more cost effictive to operate instead if air cooled?
I've seen scrolls on some refrigeration systems and I've heard of screws on others. However, it seems that A/C companies are forced to go with the scrolls because of the higher efficiency standards....
I've been out if the refrigeration side of the business for a few years now. The other day someone asked me to look at their 160 ton rack unit which is about seven years old. I looked inside and...
Temecula is nice and you can commute 60 miles to San Diego like the rest of us. By the way, even though housing is lower, its still expensive compared to the rest of the country.
Thanks Remanworld I appreciate the info. Right now I'm waiting for the parts and yes I'll install the center bolt.
I have lots of experience with this kind of system and you really need to do your home work setting it up. First, bypass valves are typically in a system to maintain minimum water flows and or...
Let me guess, the new chiller model number is a CGAM? The flat plates have pressure drops just like any other chiller barrel. So install the flow switch down stream of the flat plate. Follow the...
I think ASCJ is correct, stay with one loader because potential problems. However, I would consider the unloader if the compressor has short cycling problem. Also remember that suction dryers are...
As far as flow switches go we always put them on the outlet side of the chiller barrel. The water pressure across the barrel drops and the low pressure side is on the outlet of the barrel. With that...
I assume this is a chiller? What is the history of this unit and does it have a flow switch? The evaporator tubes maybe crushed and leaking refrigerant into the water.There are three indicators to...
I think unloaders are a good thing even on constant volume systems. Unloaders will reduce short cycling under lower heat loads and dehumidify the space better. However, a multiple stage thermostat...