Setup & Testing

HVAC INSTALLER SYSTEM SETTINGS TABLE

The following table contains the system settings and their details.. Default settings are shown in bold.. Some settings are only available dependent upon the value of other settings..

 

 

 

Factory default setting (bold)

System setting

Description

and setting range

 

 

 

00.. Equipment Type

Equipment type set by SW1..

Heat /Cool

 

 

 

Heat Pump

01.. Control Setup

Used to lockout heating or cooling outputs. (Only

Heat and Cool

 

 

available in Heat/Cool mode..)

Heat Only

 

 

 

Cool Only

 

 

 

 

02.

Number of Stages

Number of equipment stages. (Three is only

One

 

 

available in Heat/Cool mode..)

Two

 

 

 

Three

 

 

 

 

03.

Aux Heat Stages

Number of auxiliary heat equipment stages.

One

 

 

 

Two

 

 

 

04.. Temperature Scale

Set the thermostat to Fahrenheit or Celsius mode..

Fahrenheit

 

 

 

Celsius

 

 

 

05.. Heat/Cool: Fan Control

Heat/Cool: Determines if the thermostat or

Gas/Oil Heat (equipment controls fan)

 

in Heating

equipment controls the fan in heating..

Electric Heat (thermostat controls fan)

 

Heat Pump: Auxiliary

Heat Pump: Auxiliary Equipment type.

 

 

Equipment Type

 

 

 

 

 

06. Extended Fan – Heat

Extends fan operation after heat call ends.

Disable

 

 

 

Enable (90 second extension)

07.

Extended Fan – Cool

Extends fan operation after cool call ends.

Disable

 

 

 

Enable (90 second extension)

 

 

 

08.. Internal Temp Sensor

Field adjustment of internal temperature sensor.

(no offset applied)

 

Offset

 

-4°F to +4°F (-2°C to +2°C)

 

 

 

35.. Internal RH Sensor Offset

Field adjustment of internal RH sensor.

0 (no offset applied)

 

 

 

-5% to +5%

 

 

 

09.. Auto Changeover

Enable or disable auto changeover mode..

Disable

 

 

 

Enable

26.

Deadband

Auto Changeover mode deadband..

3°F (2°C)

 

 

 

2°F to 9°F (1°C to 5°C)

 

 

 

10.. Remote Sensor

Select if remote sensor is attached..

No

 

 

 

Yes

 

 

 

11.. Outdoor Sensor

Select if outdoor sensor is attached or not..

No

 

 

 

Yes

 

 

 

35.. Return Sensor

Select if return sensor is attached or not..

No

 

 

 

Yes

12.. Compressor Min Off Time

Minimum off time for compressor protection..

5 minutes

 

 

 

1 to 5 minutes

 

 

 

13.. Heating Min Off Time

Minimum off time for heating..

2 minutes

 

 

 

1 to 5 minutes

 

 

 

14.. Equipment Min On Time

Minimum on time for heating and cooling..

2 minutes

 

 

 

1 to 5 minutes

 

 

 

15.. Auto Changeover Time

Minimum time between heating and cooling calls..

4 minutes

 

 

 

1 to 5 minutes

16.. First Stage Differential

1st stage differential..

1°F (0.5°C)

 

 

 

1°F to 9°F (0..5°C to 4..5°C)

 

 

 

17.. Second Stage Differential

2nd stage differential..

1°F (0.5°C)

 

 

 

1°F to 9°F (0..5°C to 4..5°C)

 

 

 

18.. Third Stage Differential

3rd stage differential..

1°F (0.5°C)

 

 

 

1°F to 9°F (0..5°C to 4..5°C)

 

 

 

 

12

Setup & Testing

HVAC INSTALLER SYSTEM SETTINGS TABLE (CONTINUED)

 

 

Factory default setting (bold)

System setting

Description

and setting range

 

 

 

19.. Fourth Stage Differential

4th stage differential..

1°F (0.5°C)

 

 

1°F to 9°F (0..5°C to 4..5°C)

 

 

 

20. Heat Blast

Enables the Heat Blast feature.

Disable

 

 

Enable

 

 

 

21. Blast Offset

Amount of heating when Heat Blast is initiated.

3°F (2°C)

 

 

3°F to 5°F (2°C to 3°C)

22.. Screen Lockout

Screen lockout level.. (Override lockout by holding

Off

 

[MENU] for 7 seconds.)

Part

 

 

Full

 

 

 

23.. Partial Lockout Type

Select lockout type.. (Only available when screen

Fan/Mode/Setpt

 

lockout is set to partial..)

Fan/Setpoints

 

 

Setpoints Only

 

 

 

24. Max Temp Setpoint

Select temperature setpoint limits.. (Only available

3 degrees

Change In Lockout

when screen lockout is set to partial..)

0 to 20 degrees

 

 

 

41. Max Dehum Setpoint

Select dehumidification setpoint limits.. (Only

5 Percent RH

Change In Lockout

available when screen lockout is set to partial..)

0 to 15 Percent RH

 

 

 

25.. Stage Rate

Accumulation of equipment run time in equipment

2

 

staging determination..

1 to 5 or “OFF” to ignore accumulated

 

1 = more rapid staging of equipment (comfort)

run time..

 

5 = slower staging of equipment (economy)

 

 

 

 

27.. Progressive Recovery

Enable or disable progressive recovery..

Disable

 

 

Enable

 

 

 

28. Low Balance Point

Outdoor temperature low balance point.. (This

20°F (-6°C)

 

option is only displayed if the outdoor sensor is

10°F to 50°F (-12°C to 9°C) or OFF to

 

enabled..)

ignore

 

 

 

29. High Balance Point

Outdoor temperature high balance point.. (This

65°F (18°C)

 

option is only displayed if the outdoor sensor is

40°F to 85°F(3°C to 18°C) or OFF to

 

enabled..)

ignore

30.. Program Format

Select weekly program format..

7-Day(Mon, Tue, Wed, Thu, Fri, Sat, Sun)

 

 

5/1/1 (weekdays, Saturday and Sunday)

 

 

5/2 Weekdays (weekdays and weekends)

 

 

Non-Prog

 

 

 

32.. Events Per Day

Number of program events per day.

Four

 

 

Two

33.. Reset Service Reminders

Clears the Change Air Filter and HVAC and

No

 

Dehumidifier Service reminders if they are active

Yes

 

and resets the start date to the current date..

 

 

Clears the Change Water Panel reminder if it is

 

 

active. If the reminder is set to timed, the clock

 

 

will be reset..

 

 

 

 

37.. HVAC Service Reminder

The period for displaying the “HVAC Service

Off

 

Reminder” message.

1 to 12 months or “Off” to disable

 

 

 

38. Constant Backlight

Enable constant, low intensity backlight when

Disable

 

24VAC is present..

Enable

39. Backlight Intensity

Backlight intensity as a percentage of full on.

100 Percent

 

 

0 to 100 Percent

 

 

 

40.. Auto Daylight Savings

Enable or disable auto daylight savings..

Off

 

 

March (second Sunday in March to the

 

 

first Sunday in November)

 

 

April (first Sunday in April to the last

 

 

Sunday in October)

 

 

 

13

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Aprilaire 8910 installation instructions Hvac Installer System Settings Table

8910 specifications

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