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  1. 01-23-2013, 07:36 PM #1
    GastecD
    GastecD is offline Regular Guest
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    York 20 rtu blower delay adjustment

    Got a call with complaints of cold air coming out of the supply runs during the start of the heat call making patrons uncomfortable.

    Looking to adjust the blower on delay so the air isnt as cold during the intial fire up. Havent looked at the unit yet, just trying to get a feel for it before the morning. Its -8 F here so less time on the roof the better!

    Thanks
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  2. 01-23-2013, 08:03 PM #2
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    2sac
    2sac is offline Professional Member
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    The newer Yorks have the delays built into the board and the old units have mechanical delays. Might want to check economizers and/or fresh air dampers
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  3. 01-24-2013, 02:31 PM #3
    GastecD
    GastecD is offline Regular Guest
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    The economizer are off and fresh air dampers set for 25% fresh air as per building code. Supply air temp was 68 on start up, 73 after running for a few minutes.

    The unit is horizontal discharged, looks like acustic lined and alumaguard wrapped
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