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| MarketManager » Modeling HVAC Systems |
A:
In earlier versions, MarketManager required you to attach a supply fan to all systems, even when you were not modeling a system with a supply fan—i.e., a heat pump system.
As per MarketManager you no longer need a supply fan--if you omit it, the program simply "fakes one" internally of the appropriate size (equal to sum of zone supply air quantities), but assumes 0 fan energy use.
MarketManager does forgive the lack of a supply fan for truly zonal systems, such as PTAC, AAHP, UV, FC, IHP, GSHP, ECHP, Hydronic, Radiant Heating, Room air heaters, and maybe 1 or 2 more.
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