Aprilaire 8120 Series - SET UP MENU; Wiring Configuration (HP;HC); Number of Bedrooms; Square Footage

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SET UP MENU
NOTICE
Before setting up the control for use, the amount of ventilation air being delivered (CFM) by
the installed ventilation system must be measured.
1
Hold for 5 seconds,
then release.
2
Throughout the Set Up Menu, the and buttons are used to change values, the Select button
is used enter the value and move on to the next Set Up Menu item.
Menu Item Values Description
HP
HC
HP or HC
HP if wiring to a heat pump.
HC if wiring to furnace and AC.
CODE
#
BEDROOMS
HIGH
1 – 10
Number of bedrooms – used to calculate required
continuous ventilation rate.
COMFORT
HOUSE
(
FT
2
)
LOW
500 – 7500 ft2
Square footage – used to calculate required continuous
ventilation rate.
MEAS
REQ
’
D CONT
CFM
FAN
30 – 250 CFM Measured outdoor airflow delivered during ventilation.
HP
°F
CODE NO.OF BEDROOMS
HIGH
OFF, 85°F – 105°F
Ventilation high temperature limit. Ventilation is limited
when the outdoor temperature exceeds the setting. Turn
OFF if no high limit is desired.
HP
°F
COMFORT HOUSE (FT
2
)
LOW
OFF, -10°F – 40°F
Ventilation low temperature limit. Ventilation is limited
when the outdoor temperature falls below the setting.
Turn OFF if no low limit is desired.
MEAS REQ’D CONT CFM
FAN
On, “bLnd”, OFF
ON HVAC fan turns on whenever ventilation occurs.
bLnd (blend) HVAC fan turns on with ventilation only
when the outdoor temperature is outside a set range.
OFF HVAC fan is not turned on with ventilation.
HP
°F
MEAS REQ’D CONT CFM
FAN
CODE # BEDROOMS
HIGH
OFF, 60°F to 5°F
less than Vent.
High Temp. Limit
Only available when bLnd is selected. When the outdoor
temperature is above the setting, the HVAC fan will be
turned on to mix (blend) outdoor air with indoor air for
tempering.