Hvac Installer System Settings Table - Aprilaire 8620W Safety & Installation Instructions

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 .
System setting Description
01 . Equipment Type Equipment type set by SW1 .
02 . Temperature Scale Set the thermostat to Fahrenheit or Celsius
mode .
03 . Reversing Valve Selects O or B operation.
04 . Control Setup Used to lockout heating or cooling outputs.
Note: Only available if Equipment Type is set to
Heat/Cool .
05 . Heat/Cool: Cooling Stages Heat/Cool: Number of Cooling Stages.
Heat Pump: Compressor
Heat Pump: Number of Compressor Stages.
Stages
06 . Heat/Cool: Heating Stages Heat/Cool: Number of Heat Stages.
Heat Pump: Aux Heat
Heat Pump: Number of Auxiliary Heat Stages.
Stages
07 . Heat/Cool: Fan Control Heat/Cool: Determines if the thermostat or
in Heating equipment controls the fan in heating .
Heat Pump: Auxiliary
Heat Pump: Auxiliary Equipment type.
Equipment Type
08. Extended Fan – Heat Extends fan operation after heat call ends.
09. Extended Fan – Cool Extends fan operation after cool call ends.
10 . Temperature Sensor Offset Field adjustment of controlling temperature
sensor(s) .
11 . Humidity Offset Field adjustment of internal RH sensor.
12 . Auto Changeover Enable or disable auto changeover mode .
13 . Deadband Auto Changeover mode deadband .
14 . Remote Sensor Select if remote sensor is attached, and if it is
attached, if it is the primary control or averaged
with the built-in sensor . If the remote sensor is
the primary control it can be configured to use
the built-in sensor as a back-up sensor .
15 . Outdoor Sensor Select if outdoor sensor is attached or not .
18. Compressor Min Off Time Minimum off time for compressor protection.
19. Heating Min Off Time Minimum off time for heating.
20. Equipment Min On Time Minimum on time for heating and cooling.
8
factory default setting (bold)
and setting range
Heat/Cool
Heat Pump
fahrenheit
Celsius
O – On in cooling
B – On in heating
Heat and Cool
Heat Only
Cool Only
One
Two
One
Two
gas/Oil Heat (equipment controls fan)
Electric Heat (thermostat controls fan)
Disable
Enable (90 second extension)
Disable
Enable (90 second extension)
0° (no offset applied)
-4°F to +4°F (-2°C to +2°C)
0 (no offset applied)
-5% to +5%
Disable
Enable
3°f (1.5°C)
2°F to 9°F (1°C to 4.5°C)
Not installed
Control no backup
Control with built-in backup
Average with thermostat built-in sensor
Not installed
Installed
5 minutes
1 to 5 minutes
2 minutes
1 to 5 minutes
2 minutes
1 to 5 minutes
SETUp & TESTINg
HVAC INSTAllER SYSTEM SETTINgS TAblE
System setting Description
21 . Auto Changeover Time Minimum time between heating and cooling
calls .
22 . First Stage Differential First differential .
23 . Second Stage Differential Second stage differential .
24 . Third Stage Differential Third stage differential .
25 . Fourth Stage Differential Fourth stage differential .
26 . Away Enables the Away feature . The Away feature
allows the Aprilaire mobile and web apps to use
a single button press to set the thermostat to a
predefined setpoint(s) . The thermostat will hold
the setpoint(s) until Away is canceled with the
app or at the thermostat .
27. Heat Blast Enables the Heat Blast feature.
28. Blast Offset Amount of heating when Heat Blast is initiated.
37 . Stage Rate Accumulation of equipment run time in
equipment staging determination .
1 = more rapid staging of equipment (comfort) .
5 = slower staging of equipment (economy) .
38 . Progressive Recovery Enable or disable progressive recovery .
39. Low Balance Point Outdoor temperature low balance point .
Note: This option is only available if the outdoor
sensor is enabled .
40. High Balance Point Outdoor temperature high balance point .
Note: This option is only available if the outdoor
sensor is enabled .
41 . Program Format Enables the 7 day program .
42 . Reset Service Reminders Clears the Change Air Filter and HVAC and
Dehumidifier Service reminders if they are active
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 .
43 . HVAC Service Reminder The period for displaying the "HVAC Service
Reminder" message.
44. Constant Backlight Enable constant, low intensity backlight when
24VAC is present .
45. Backlight Intensity Set the active backlight intensity .
Note: The minimum setting is 40% when
Constant Backlight is enabled.
(CONTINUED)
factory default setting (bold)
and setting range
4 minutes
1 to 5 minutes
1°f (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
1°f (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
1°f (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
1°f (0.5°C)
1°F to 9°F (0.5°C to 4.5°C)
Disable
Enable
Disable
Enable
3°f (1.5°C)
3°F to 5°F (1.5°C to 2.5°C)
2
1 to 5 or "OFF" to ignore accumulated
run time .
Disable
Enable
20°f or -8°C
0°F to 60°F (-18°C to 12°C) or OFF to
ignore LBP
65°f or 14.5°C
0°F to 80°F (-18°C to 22°C) or OFF to
ignore HBP
7-Day
Non-Prog
No
Yes
Off
1 to 12 months or "Off" to disable
Disable
Enable
100 percent
0 to 100 Percent
9