Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
68-0282—11
8
CHECKOUT
In this section, make sure the ventilation system is
operating correctly.
1.
On thermostat, set Fan switch to Auto and System
switch to Off.
2.
Set any remote switches throughout the house in the
Off position.
3.
On the W8150, set the control switch to Off (remote
only).
4.
Press Test button for two seconds to enter test mode:
• A light on the control begins flashing.
• The HVAC system fan comes on.
• The damper moves to the Open position.
5.
Press the Test button again to exit test mode:
• No lights on the control are on.
• The HVAC system fan turns off.
• The damper returns to the closed position.
6.
Return the thermostat, ventilation control, and
remote switches to the original settings.
7.
Refer to Troubleshooting section, if needed.
TIP:
• W8150 Ventilation Control automatically exits test
mode after three minutes.
TROUBLESHOOTING
Problem
Possible cause
What to do
Flashing red light
during test mode
(The current settings
do not meet the
selected ventilation
requirement)
Not enough airflow
•
Measure airflow and check dial setting.
•
See Problem: Not enough airflow.
Ventilation on-time limit
setting
•
If the device is set to 60%: Set the ventilation control to 100%
maximum on time. This allows the HVAC fan to run up to 100% of the
time. It may be preferable to increase airflow.
•
If the device is set to 100%: There is not enough airflow through the
fresh air duct.
•
Ventilation continues to occur according to the settings but chosen
standard may not be met.
Flashing red light
during normal
operation
Low voltage
•
Check the voltage from the transformer for at least 20 Vac. If voltage
is OK, replace W8150 Control. If voltage is not OK, disconnect damper
and remote switch connections and check again. If voltage does not
return to at least 20 Vac, replace transformer.
No light on
ventilation control
when switch set to:
•
On
•
Override Off/
•
Remote Only and
a remote switch is
on.
No power to control
•
Verify 24 volt input to R and C terminals on ventilation control.
•
Check wiring connections per appropriate system diagram and
replace transformer, if necessary.
Device malfunction
•
Cycle power off to control for ten seconds and recheck. If control does
not recover, replace ventilation control.
HVAC fan does not
come on after
pressing Test button.
Wiring
•
Check wiring connections per appropriate system diagram.
HVAC system does not
have power
•
Restore power to the HVAC system.
