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  1. #1
    Join Date
    Nov 2019
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    Trane Intellipak refusing to go into heating mode.

    Hi,

    We have a new Intellipak 30 system. It is configured in BacNet/Mstp - Bacnet/Bas mode.


    We are having a problem similar to the following: If I put the unit in service mode the gas fires on stage 1 and 2 so we know the gas portion works."
    Hi Mark56468,
    It appears that you have a unit with two stage gas heat. You will not see a supply heating setpoint with staged gas heat.
    If the unit is running 24/7, the only way to go to heat is through Daytime Warmup, which has a default setpoint of Initiate 67 degrees and a Terminate setpoint of 71 degrees. The other possible way is for the unit to go unoccupied and when it goes back occupied the controlling sensor must be below the Morning Warmup setpoint.
    One other question, Is there a field installed sensor, ie Zone, MWU, Aux, connected to the unit? If the unit does not have a sensor installed for at least one of those functions and the unit programmed for MWU, DWU and Unoccupied Heat to look to that particular sensor, you will not get the heat to work except in the Service Mode.


    The system is configured in VVDA mode.

    Day warmup is enabled, the proper sensors are associated, but no mater what the BAS setpoints, day mode heating start/termination setpoints, the system stays in Application Mode: Cooling.

    In service/test mode heat works no issue. 2 Trane techs spent the day on site, not able to get the system to heat. Anyone had this issue before?

  2. #2
    Join Date
    Nov 2006
    Location
    Southeastern Pa
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    When you say, "WE have a new Intellipak 30 system," are you saying that you are the building owner/manager/maintenance department, OR are you an HVAC contractor whose CUSTOMER has this system?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  3. #3
    Join Date
    Jul 2009
    Location
    Columbia, MD
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    Where you located?

    You need a zone sensor on 1&2

    The unit will only go into heat if you unoccupied and go back occupied.

    Or

    DWU is enabled and the zone sensor gets below 67*

    Try this;

    Take the unit from bas to local setpoint

    Bring the unit occupied

    Trick the zone sensor to be colder than 67* and see if the heat comes on

    Or

    Unoccupy and reoccupy with the zone sensor being colder than setpoint and see what happens.

    This will tell you if its the unit or if it is bas related


    Sent from my iPhone using Tapatalk

  4. #4
    Join Date
    Aug 2006
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    Mixing oil and fire with a big spoon.
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    Quote Originally Posted by gravity View Post
    ...You need a zone sensor on 1&2...
    Yep. I have seen this many times. The installing contractor puts in a resistor across 1&2 and then wonders why the unit won’t go into heat.

    by the way, these units can be configured a few hundred ways, so, to give you an answer easily might not be so easy. I would start with the sensor.
    "Right" is not the same as "Wise".

    Don't step on my favorite part of the Constitution just to point out your favorite part.

  5. #5
    Join Date
    Nov 2006
    Location
    Southeastern Pa
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    Quote Originally Posted by timebuilder View Post
    When you say, "WE have a new Intellipak 30 system," are you saying that you are the building owner/manager/maintenance department, OR are you an HVAC contractor whose CUSTOMER has this system?
    ...and the answer to this is.....?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







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