Honeywell Thermostat T8665A User Manual download pdf (Page 14)

14 69-1536–3

Setting the System Key

Press the System key until the desired

system (Heat, Off, Cool, or Auto) displays.

Heat: The thermostat controls the heating.

Off: Both the heating and cooling are off.

Cool: The thermostat controls the cooling.

Auto: The thermostat automatically changes

between heating and cooling operation,

depending on the indoor temperature.

Thermostat will satisfy system demand

on a first call basis. For example, if

zone 2 (any zone) is calling for heating

and then zone 1 (any zone) asks for

cool – the system will satisfy zone 2

before turning on the cool for zone 1.

System

Setting the Fan Key

Press Fan key until the desired mode

(On or Auto) displays:

On: Fan operates continuously.

Auto: Fan operates only when heating

or cooling.

displays when the thermostat is

calling for the fan in this zone.

NOTE: The thermostat may delay

turning on the fan until another zone

has completed its call for heat or cool

before initiating the fan call for this zone.

Fan

ZONING

ZONING

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 47 48

Comments to this Manuals

No comments