Honeywell THM5421C1008 Benutzerhandbuch

68-0287—1

18

Use the Installer System Test to test the heating, cooling and 

fan (and emergency heat for heat pump systems).

Avoid cycling compressor quickly.

The Installer Test is part of the Installer Setup Menu.

1. Enter the Installer System Test by entering the Installer 

Setup.

2. Note that the test appears at the end of the Installer 

Setup Numbers.

3. See Fig. 28 to review how the thermostat buttons are 

used during the Installer System Test. See Table 6 for 

available Installer System Tests.

4. If installed with a Discharge Air Temperature Sensor 

(ISU365=1) press the “MORE” button to view the dis-

charge temperature, and press Cancel to return to the 

Installer test screen.

700

Temperature 

Display Offset

-3

-2

-1

0

1

2

3

-3°F -1.5°C

-2°F -1°C

-1°F -.5°C

0°F

0. °C — (no difference in displayed 

temperature and actual room temperature)

1°F

.5°C

2°F

1°C

3°F

1.5°C

701

Humidity Display 

Offset

-5

-4

-3

-2

-1

1

2

3

4

5

-5%

-4%

-3%

-2%

-1%

1%

2%

3%

4%

5%

710

Restore Factory 

Defaults

1

Yes

Restoring factory defaults will re-set installer setup and 

programming.

DONE

M22428

EXITS INSTALLER 

SYSTEM TEST

ADVANCES TO 

NEXT SYSTEM 

TEST NUMBER

TURNS THE 

SYSTEM ON

TURNS THE 

SYSTEM OFF