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INSTALLATION INSTRUCTIONS

69-1412-1

T8624D Chronotherm

Deluxe Programmable

Multistage Thermostats

APPLICATION

The T8624D Chronotherm® IV Deluxe Programmable

Multistage Thermostats provides electronic control of 24

Vac single-zone multistage systems.

Refer to Table 1 for a general description of the

thermostats. All T8624 thermostats require a common

wire to supply power.

Table 1. Description of T8624 Thermostats.

MERCURY NOTICE

If this control is replacing a control that contains

mercury in a sealed tube, do not place your old

control in the trash. Dispose of properly.

Contact your local waste management authority

for instructions regarding recycling and the

proper disposal of the old control.

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

the instructions can damage the product or cause

a hazardous condition.

2. Check the ratings given in the instructions and on

the product to make sure the product is suitable for

your application.

3. Installer must be a trained, experienced service

technician.

4. After completing installation, use these instructions

to check out the product operation.

Location

Install the thermostat about 1.5m (5 ft) above the floor in

an area with good air circulation at average temperature.

See Fig. 1.

Do not install the thermostat where it can be affected by:

— drafts, or dead spots behind doors and in corners.

— hot or cold air from ducts.

— radiant heat from sun or appliances.

— concealed pipes and chimneys.

— unheated (uncooled) areas such as an outside wall

behind the thermostat.

T8624 Changeover System Selection

Fan

Selection Comments

D Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.

1 2 3 4 5 6 ... 11 12

Inhaltsverzeichnis

Seite 1 - Multistage Thermostats

Seite 2 - Wallplate Installation

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS69-1412—1 10THERMOSTAT INFORMATION1. Press the Time ∆ key to access the thermostat in

Seite 3 - Mounting Thermostat

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS11 69-1412—1TROUBLESHOOTING GUIDETable 6. Troubleshooting Guide.Symptom Possible Caus

Seite 4 - SETTINGS

69-1412—1 G.H. Rev. 12-02 www.honeywell.com/yourhomeT8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATSAutomation and Control Solut

Seite 5 - INSTALLER SETUP

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS69-1412—1 2Wallplate InstallationThe thermostat can be mounted horizontally on the wa

Seite 6 - 69-1412—1 6

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS3 69-1412—1Fig. 3. Typical hookup of T8624D in a heat pump system.Fig. 4. Correct wir

Seite 7 - Setting Current Day and Time

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS69-1412—1 4Fig. 6. T8624D key locations and descriptions.Using Thermostat KeysThe the

Seite 8 - INSTALLER SYSTEM TEST

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS5 69-1412—1INSTALLER SETUPNOTE: For most applications, the thermostat factory-setting

Seite 9

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS69-1412—1 6Adaptive Intelligent Recovery™ control.13 0 Adaptive Intelligent Recovery™

Seite 10 - CHECKOUT

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS7 69-1412—1IMPORTANTReview the settings to confirm that they match the system. Press

Seite 11 - TROUBLESHOOTING GUIDE

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS69-1412—1 8NOTE: If the current time is Daylight Savings Time, press Daylight Time un

Seite 12

T8624D CHRONOTHERM® IV DELUXE PROGRAMMABLE MULTISTAGE THERMOSTATS9 69-1412—1Table 5. Installer System Test Options.NOTE: Press any key and the display