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    Trane CGAM chiller Dynaview question

    Recently ran a call on a 100 ton CGAM. The maintenance tech says he gets repeated alarms for hi water temp from the building automation system (Jace). When he arrives, he finds the Dynaview on the...
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    In addition, when I attempted to commission one...

    In addition, when I attempted to commission one of the ZN517's, the commission failed. Which, from my understanding, is essential to sever any existing bindings that may have existed. This leads me...
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    JACE on a former Tracer network

    I've gotten myself into another good one, and hope you guys can help me with this. Recently got involved with a job where a JACE AX replaced some BCU's. There is a full host of LCI's, MP 501's,...
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    AX JACE connection problem

    This is a 2 part question. 1 - Attempting to make a browser connection to a recently installed Web 600.
    I'm doing this remotely. I get the login screen, which I complete and enter. It goes thru all...
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    Okay, I looked into it and understand what you're...

    Okay, I looked into it and understand what you're saying. Using the "identify", and then using the service pin, it will display the values you described. At that point you can change the lon id info...
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    So you say the Lon utility will allow you to see...

    So you say the Lon utility will allow you to see the existence of a controller that can't be discovered? Okay, never knew about that one. In the Lon network property sheet, under net mgmt., there is...
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    Thanks for the response, sounds like you know...

    Thanks for the response, sounds like you know what you're doing. I went back to my test bench, and deleted my test spyder from the test station,
    did as you suggested, and it worked like you...
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    Honeywell Spyder

    Have a job that has 2 PUL6438's on a Lon bus that's predominantly Trane devices and a BCU. Since these are dynamic
    devices in this environment, we can't see the logic. I have the latest version of...
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    York YPAL Lon point info

    Recently installed a JACE (Webs 600) on a network that includes 2 York YPAL 90 ton RTU's. These units have the old Optilogic control boards in them. About a year ago, someone installed Lon boards in...
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    Semco Energy Recovery Units

    I'm currently evaluating some of these units. They're the Pinnacle series and rated for approx. 35,000 cfm. Each unit has 2 heat exchange wheels: a Total energy (enthalpy) wheel, and a Passive wheel....
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    Thanks a lot guys, that's EXACTLY what I was...

    Thanks a lot guys, that's EXACTLY what I was needing. Seems pretty straightforward, thanks again. --- gman
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    Pneumatics question

    Came across an old Johnson T-901 master/submaster control. There are 3 ports on the top of the unit; left port-supply air, center port-pilot, right port-output. It's controlling a n/o hot water vlv....
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    Honeywell 403 JACE

    I have a few of these that suffered from the recent JAVA update (7.25 I believe). They're running Webs ver 3.44.3. Will the 403 support a later version like 3.5 or 3.6 with the patch that remedies...
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    Trane air handler floors rusting through

    Some years back, I recall reading about large tonnage Trane AHU's having problems with the floor of their units rusting through, creating safety concerns for those servicing them. The floor doubles...
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    Well, replaced the burners yesterday. Brushed and...

    Well, replaced the burners yesterday. Brushed and blew out the heat exchanger, but it really didn't appear dirty enough to cause problems. The condensation theory, though solid, isn't a factor in...
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    Lochinvar Burner meltdown

    I have a Lochinvar CH1800 hot water heating boiler that I've serviced for the past 6 yrs. I was onsite today on an unrelated mission when I noticed it was having a hard time igniting. Disassembled...
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    Carrier RTU Open w/Lon board

    I just replaced an RTU Open control board in a Bryant Humidimizer unit. It has an accessory Lon board ribboned to it to communicate on our Lon network. I confirmed that the Lon board was good by...
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    No, they will remain in the Config Online state....

    No, they will remain in the Config Online state. And, the nvi's and nvo's that I'm utilizing function as well. The only time they need to be retoggled to Config Online is if I perform a bind with one...
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    As far as the Lcir boards go, I've experienced...

    As far as the Lcir boards go, I've experienced this on my last 2 jobs. What I ended up doing was, after discovering them, and encountering their reluctance to commission, I opened their property...
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    I have a customer that had the same request. He...

    I have a customer that had the same request. He wants us to log any equipment, or sytem concerns we encounter during our routine inspections. I think it's a pretty cool idea, I just wasn't sure how...
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    Thanks to all that responded. The job is in and...

    Thanks to all that responded. The job is in and running well at this time. Here's what I ended up doing: I'm allowing the units to run off their own static pressure control strategies and components...
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    Silversurfer, did your VFDs all track at similar...

    Silversurfer, did your VFDs all track at similar speeds? Maybe I'm overthinking this, but I can conceive, that over time, one of the units could be operating at 50hz and the other at 20hz while...
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    Twinning 2 Trane VAV RTU's

    I'm soon to be involved with a replacement project where we are installing 2 25 ton VAV units as replacement for a single 50ton unit. I'm unsure of the Trane model#'s but I was assured they will...
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    Lon connect without PMCIA

    There has been some discussion of upgrading our company laptops with newer models. Most of our laptops are loaded with all the ports, Comm, PMCIA, USB, modem, and RJ45, and are running XP...
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    I wonder if he could use a T775M with its 2...

    I wonder if he could use a T775M with its 2 modulating outputs. If they're configured for 0-10vdc, or 0-5vdc and wired from "+" to "C", "-" to "N" for cooling, and then configure the 2nd mod output ...
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    The LCI comes up on the same subnet as the rest...

    The LCI comes up on the same subnet as the rest (1) and it's node # is in the sequence and not a duplicate. I thought it would give me a warning box if there was a clash of sorts. All I get is...
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    Trane commissioning issue

    Putting in a small VAV retrofit using Honeywell Spyders (PVL's) in the boxes, and a Trane Reliatel RTU. The RTU is a VAV unit with all the options including an LCI board to communicate on our Lon...
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    Carrier RTU Open Controller

    Just finishing up a unit replacement project with these controllers factory installed in the equipment. We purchased the accessory Lon boards so we could hang these units on an existing network. We...
  29. Thread: Frick Recip

    by gman994
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    603

    Frick Recip

    I came across a Frick open/direct drive recip with a mod# MCM-6A. I'm unsure, but I believe it used to be an old R-500 system that's been converted to a Hot-Shot blend. Anybody know where I can find...
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    That's the weird part about it. I checked a...

    That's the weird part about it. I checked a number of controllers, some that I was having problems with, and some that I wasn't, and they all had an 07 date code. The new PVL I installed was a...
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    I wasn't aware of the ILC classification, thanks...

    I wasn't aware of the ILC classification, thanks for the heads-up. Yesterday I replaced one of the zone PVL controllers because the integral actuator had failed (gears I'm suspecting). This was also...
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    I'm unsure of the meaning of ILC version....

    I'm unsure of the meaning of ILC version. However, it is a WEBS Jace.
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    Spyder downloading issues

    I have a number of Spyder controllers on a Jace network that will not respond to a download. There are PVL's for the zone dampers and PUL's for the equipment. There are 4 RTU's with an avg of 9 zones...
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    Pressure testing an AC system with CO2

    I realize this may sound like a foolish question, but I was curious if anyone ever uses compressed CO2 as a substitute for nitrogen for pressure testing lines. I have heard there is excessive...
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    Comfort Ventilaton w/York YPAL

    Anyone ever utilize the Comfort Ventilation mode in a York RTU? Have a YPAL , 50 ton, modulated gas heat, Design D. Thinking about using CO2 sensors for Demand Ventilation. Curious how well this...
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    Hot water makeup air unit

    The scenario: 100% outdoor air unit, 2 position OA damper, 2 way modulating HW valve, glycol content minimal. Unit will be located indoors with OA ducted to it. It will be shut off when exhausts are...
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    Make up air controller

    I have a makeup air unit that is utilizing a Maxitrol A1044 / MR212 burner control arrangement. There has been discussion of including this unit into a Building Automation Sytem, which would require...
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    Not to horn in, but I've had a lot of experiences...

    Not to horn in, but I've had a lot of experiences with chg-ovr / bypass systems. They can be a real pain sometimes. I've found that problems can be minimized by accurate control of duct static,...
  39. Thread: Vision Pro IAQ

    by gman994
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    Yes, I believe it is, it wires to the same...

    Yes, I believe it is, it wires to the same terminals as the stat (1,2,3), which are the Envirocom bus terminals. The setup manual doesn't say much about it. As a matter of fact the ONLY thing in the...
  40. Thread: Vision Pro IAQ

    by gman994
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    I dunno, maybe cause I'm a curious sort. I'd like...

    I dunno, maybe cause I'm a curious sort. I'd like to monitor my heat pump performance at various outdoor temps, at various coil frosting conditions, supply temp during defrost, etc. If I ever add an...
  41. Thread: Vision Pro IAQ

    by gman994
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    823

    Vision Pro IAQ

    Please excuse me while I go into my "ventilation mode". I installed one of these along with a TrueSteam humidifier and a heat pump with my existing gas furnace. Been tickled pink with this...
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    I've been all over the Honeywell site and saw...

    I've been all over the Honeywell site and saw nowhere that the upgrade was available. I'm not quite sure where else to seek it. ---gman
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    WEBStation workbench version

    I'm just getting familiar with the Tridium/AX environment. Our company has purchased the software and licensing agreements. My version is 3.2. What is the procedure for obtaining the upgrade to 3.4,...
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    Heat Pump defrost with fossil fuel

    I realize that when using electric heat as backup, it's brought on by the defrost relay to reheat the air since the heat pump is actually in the cooling mode when defrosting. However when using a gas...
  45. Thread: Seer mixing

    by gman994
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    664

    Seer mixing

    I'm a tech that generally doesn't get involved with things like this, and when I do, I play it by the book. However, this is for me, at my home and I'd like some opinions. I have a 72,000 90% LP...
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    Yep, 57 deg all the time. Course, as you probably...

    Yep, 57 deg all the time. Course, as you probably have suspected, the compressors won't run all the time since the stat satisfies pretty quickly being in the supply duct. With the minimum run and...
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    As Paul Harvey says, " and now the rest of the...

    As Paul Harvey says, " and now the rest of the story". The constant volume cooling-only RTU is controlled by a digital 2 stg room thermostat, set for COOL, with the fan in ON, and a setpoint of 57...
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    RTU with zone reheat

    I have a situation where there is a single cooling-only unit (no economizer)serving 6 separate rooms. Each room has its own electric duct heater, and a space sensor which controls it. I would...
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    Pictures would be appreciated. We're about to...

    Pictures would be appreciated. We're about to enter into a full service agreement in a facility that has this same problem. This is not a good problem to inherit and have to be responsible for. My...
  50. Thread: Circuit Setter

    by gman994
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    I've never heard it explained that simply. That...

    I've never heard it explained that simply. That would mean a 4 Cv valve would flow 4 gpm @ 1psi drop. Would that mean it could flow 8 gpm @ 2 psi drop ? It can't be that easy. --- gman
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