I have a honeywell thermostat model t87f if you remove the cover from it it has a gauge measuring with an arrow in decimals I need to know what that should be set at to correspond with the furnace the furnace is a york Affinity 9.V series model# pv9c16no8oup12a

Asked by sean baker on 11/26/2011 1  Answer

ManualsOnline posted an answer 12 years, 11 months ago

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