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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
3 68-0282—07
W8150 QUICK GUIDE
No. Name Description Function
1GF Equipment fan Allows W8150 to pass thermostat calls and, when necessary, turn on
system fan for ventilation. This should be the only connection to G on the
HVAC equipment.
2R
C 24 Vac cooling system
power
Provides power to GF terminal to operate system fan, when necessary.
3C
C 24 Vac cooling system
common
Allows W8150 to monitor when system fan is energized.
4C
H 24 Vac heating system
common
Allows W8150 to monitor thermostat heat calls when W is energized.
5 W Heating Allows W8150 to monitor when heating is energized.
6GT Thermostat (or other
control) fan terminal
Allows W8150 to monitor when GT is energized. All external equipment that
controls the system fan should be wired to this terminal.
7 Switch On (optimal ventilation)
Override
Off (Remote Only)
On (optimal ventilation) – W8150 ventilates, based on control settings.
Override – W8150 runs ventilation continuously.
Off (Remote Only) – W8150 supplies ventilation only when there is a
remote call.
8 Light Green Indicates device is powered and operating normally. Used in Test Mode to
signal if dial settings meet chosen standard.
9 Light Red Indicates the device is not operating normally. Used in Test Mode to signal
if dial settings do not meet chosen standard.
10 DIP1 Ventilation limit Choose between 60% (default) and 100% maximum fan run time allowed
by W8150 for ventilation.
11 DIP2 Ventilation standard Choose between ASHRAE 62.2 (default) and 62-1999 ventilation
standards.
12 BEDROOMS Number of bedrooms Used to calculate amount of ventilation necessary.
13 AREA
(SQ FT)
Square footage of
conditioned space
Used to calculate amount of ventilation necessary.
14 VENT
AIRFLOW
(CFM)
Air delivery rate through
fresh air duct.
Used to calculate amount of ventilation necessary.
15 Test Test button W8150 checks dial and switch settings, activates ventilation for up to three
minutes and provides feedback to validate if chosen standard can be met.
ON
BEDROOMS AREA (SQFT) VENT AIRFLOW (CFM)
REMOTE AUX DAMPER
C
R
G
F
R
C
C
C
C
H
W
G
T
XFMR
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M19990
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