Honeywell T475A-1057/U Outdoor Reset Controller
EDP 111781
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Vendor Honeywell
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SKU T475A-1057/U
Product Description
Old Number T475A-1057
Operating controller for a hot water or warm air heating system - Used for line voltage, low voltage or millivolt switching.
Maintains proper balance between heating medium temperature and outdoor temperature.
Raises heating medium control point automatically as outdoor temperature falls
10 foot indoor capillary length - 30 foot outdoor capillary length - 6 degrees to 20 degrees temperature differential
