Honeywell RTH2310 User manual

RTH2310

Programmable Thermostat

Operating

Manual

69-2229ES-05

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® U.S. Registered Trademark. Patents pending.

CAUTION: EQUIPMENT DAMAGE HAZARD

To prevent possible compressor damage, do not use Cooling mode when the outdoor

temperature is below 50 °F (10 °C).

RTH2310 Programmable Thermostat

About your new thermostat

Thermostat features ..................................... 2

Early Start..................................................... 3

Compressor protection ................................. 3

Quick reference to controls .......................... 4

Quick reference to display............................ 5

Quick start .................................................... 6

Programming & Operation

Set the clock................................................. 7

Select system setting (Heat/Cool) ................ 8

Select fan setting (Auto/On) ......................... 9

Using the schedule................................ 10-13

Temporary schedule override ..................... 14

Permanent schedule override .................... 15

Appendices

Filter replacement........................................16

Battery replacement ....................................17

In case of difficulty.......................................18

Customer assistance...................................19

Limited warranty ..........................................20

Table of contents

Your new thermostat is pre-programmed

and ready to go!

See page 6 for quick start.

Operating Manual

Your new Honeywell thermostat has been designed to give you many years of reliable service and

easy-to-use, push-button climate control.

Features

• Backlit display is easy to read

• Displays ambient (measured) temperature at all times

• One-touch access to setpoint temperature

• Energy-saving settings for maximum cost savings

• Separate programmable weekday/weekend schedules (5+2 day programming)

• Temporary and permanent override of schedule

• Early Start ensures right temperature at the right time

• Built-in compressor protection

About your new thermostat

RTH2310 Programmable Thermostat

Early Start allows the thermostat to “learn” how long your furnace or air conditioner takes to reach the set

temperature. Simply program the desired times and desired temperatures into the schedule. The thermostat

will determine when to activate heating or cooling so that the desired temperature is attained at the desired

time.

Example: If you set the Wake time to 6 a.m. and the temperature to 70 °F (21 °C), the heat will come on

before the set time, so the temperature is 70 °F (21 °C) by the time you wake at 6 a.m.

Your thermostat has a feature that helps prevent damage to the compressor of your air conditioning. Because

damage can occur if the compressor is restarted too soon after shutdown, this feature forces the compressor

to wait 5 minutes before restarting. During the wait time, flashes on the screen. When the safe wait time

has elapsed, the icon stops flashing and the compressor turns on.

Early Start

Built-in compressor protection

Operating Manual

Quick reference to controls

System switch

(see page 8)

Fan Switch

(see page 9)

Screen

Lit for 12 seconds when

you press the backlight

button or any other button.

Programming buttons

(see pages 12 & 13)

Temperature buttons

Battery compartment (for 2 AA batteries)

Backlight button

RTH2310 Programmable Thermostat

Quick reference to display screen

* flashes when the compressor protection is engaged (see page 3).

Temperature

The ambient (measured)

temperature is normally

displayed. To view the

setpoint temperature, press

or once. The setpoint

temperature will appear for

5 seconds.

Replace batteries

(see page 14)

Setpoint indicator

Appears when the setpoint

temperature is displayed.

Time

Current period number

Appears when the thermostat

is following the schedule (see

temporary override on page

14 and permanent override on

page 15)

Day

Heating is on

Cooling is on *

Replace filter

(see page 14)

Operating Manual

Simply perform the three steps below and the thermostat is in operation:

1) Set the clock (see page 7)

2) Select whether to heat or cool (see page 8)

3) Select whether to keep the fan on continuously or only when needed (see page 9)

This thermostat is pre-set with energy-saving program settings (see page 11). If you do not wish to use

these settings, you can:

• Modify the schedule and temperature setpoints (see page 12)

• Temporarily override the temperature setpoint (see page 14)

• Permanently override the temperature setpoint (see page 15)

This thermostat is ready to go

RTH2310 Programmable Thermostat

1) Press Clk. The hour will flash.

2) Press or to set the hour.

3) Press Clk. The minutes will flash.

4) Press or to set the minutes.

5) Press Clk. The day will flash.

6) Press or to set the day.

7) Press Exit.

NOTE: The time display flashes when the clock has lost its settings

Set the clock

Press to start time and day setting

Press to set the time or the day

Time and day display

Press to end time and day setting

69-2229S_A.fm

Operating Manual

Select the system setting

Use the System switch to place the system in one of the

following modes:

•Heat: System is in Heating mode.

•Off: System is off.

•Cool: System is in Cooling mode.

CAUTION: EQUIPMENT DAMAGE HAZARD

Do not use Cooling mode when the outdoor temperature is below 50 °F (10 °C).

NOTE: When you place the thermostat in Cooling mode, you might need to wait up to

five minutes before cooling can start. This is a safety feature for the compressor. will

flash on the screen until cooling starts.

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