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4. OPTIONAL APPLIANCE MONITORING
The FAVC provides 4 optional monitors to optimize energy usage and ventilation effi ciency based on
activity of connected venting appliances. Refer to Figure 9 for optional appliance dial display and
Table 4 for Appliance dial ranges and factory settings.
The appliance monitoring connection terminal block (See Figure 1, on page 4) is used for connecting up
to four (4) separate optional appliances (multiple bathroom exhaust fans, clothes dryer, range hood,
etc.) for monitoring or interacting with exhaust operations. Please note any appliance can be moni-
tored if its air fl ow is within the appliance dial setting range. When appliances are active, the length
of time in operation and fl ow rate of the device are used to credit against the ventilation requirements.
Dwell time for appliance #1 and 2 is 2 hours maximum. Dwell time for appliance #3 and 4 is 4
hours maximum.The appliance monitoring features are based on the following equipment devices:
Appliance #1 – HRV/ERV or Bathroom Fan or Exhaust Fan Appliance
Appliance #2 – Bathroom Fan
Appliance #3 – Clothes Dryer or Central Vacuum
Appliance #4 – Kitchen Range Hood or Draft Assisted Gas Log Fireplaces
The four optional terminal input pairs are intended for a 24VAC signal (must have a common feed). Each
input pair is electrically isolated from the other pairs. Unused input pairs should be left unconnected. The
associated control setting does not matter if the input is not used. The optional inputs are not
required for FAVC to operate properly. Refer to Table 5 for additional information regarding normal and
optional operational conditions for Appliances 1 through 4.
FIGURE 9:
OPTIONAL FAN MONITORING SETTINGS
Appliance
#1
Appliance
#3
Appliance
#4
Appliance
#2
P/N 780100700 07/18 Rev F
CFM
Type of
Appliance
Settings
Factory
Minimum
Maximum
APPLIANCE #1
HRV/ERV or
Bathroom Fan
75
25
225
APPLIANCE #2
Bathroom Fan
75
20
140
APPLIANCE #3
Clothes Dryer
200
80
400
APPLIANCE #4
Kitchen Range Hood
or Draft Assisted
Gas Log Fireplace
850
100
1600
CONNECTION
Type
NORMAL Operation
OPTIONAL Operation
APPLIANCE #1
Bath Fan
or
HRV/ERV
Monitoring:
(DIP 4 OFF)
Contributes to ventilation
whenever appliance #1 runs.
Energy Saving Mode:
(DIP 4 ON)
Drives Appliance #1 Fan when additional
ventilation is required in lieu of Central Fan
APPLIANCE #2
Bath Fan
Monitoring
None
APPLIANCE #3
Clothes Dryer
or
Range Hood
Passive Make-UP Air:
(DIP 3 OFF)
Opens Damper whenever
Appliance #3 is on.
Monitoring
Active Make-Up Air
(DIP 3 ON)
Turns on central fan & opens damper
whenever appliance #3 runs.
APPLIANCE #4
Comercial Range Hood
or
Gas Fireplace
Active Make-Up Air:
Will run central fan with damper
open when Appliance #4 is on.
Monitoring
None
TABLE 4: Appliance Dial Ranges and Factory Settings
TABLE 5: Appliance Connection Type and Operational Condition
