ASHRAE - GUIDELINE 36 ADD Q
High Performance Sequences of Operation for HVAC Systems
Organization: | ASHRAE |
Publication Date: | 9 July 2021 |
Status: | inactive |
Page Count: | 14 |
scope:
FOREWORD
This addendum includes control sequences for 2-pipe heating, 2-pipe cooling, and 4-pipe heating/cooling fan-coil units (FCUs). It assumes the fan is variable speed but the sequences will still work with constant speed fans. The distinction between FCUs and air handling units (AHUs) is that FCUs do not have any ventilation capability - they either serve spaces that do not require ventilation (e.g. equipment rooms) or ventilation is provided by an independent system, e.g. dedicated outdoor air system, in parallel or in series.
Note: In this addendum, changes to the current guideline are indicated in the text by underlining (for additions) and strikethrough (for deletions) unless the instructions specifically mention some other means of indicating the changes.
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