User Guide

13
12
Commissioning
Custom settings
Flexibility is built into the Serenity Series so that each installation could
be ne-tuned to satisfy individual needs. Each mode described in the
Custom Conguration section has the ability to be adjusted if desired.
A: Airow Adjustment
B: Timer or Humidity Adjustment
C: Mode Selector (Dip Switch)
D: Push Button
E: Action Indicator
A
BBB
C
D
E
Grille Board Layout
Modes Parameters Range Default Action Indicator Flashes
Continuous Local or WBV
Demand Humidity
Demand Occupancy
Airow Range
20 CFM to MAX
50 CFM to MAX
50 CFM to MAX
20 CFM
60 CFM
50 CFM
Green or Blue: 20 CFM
Red: 5 CFM
Demand Humidity Run Time*
Scale of 1 to 5
1= shortest
5= longest
2 Red (single ashes)
Demand Occupancy Run Time 5 - 60 minutes 5 min
Green: 10 min
Red: 1 min
Table 6: Adjustable Parameters
1. Place System in ‘AUTO’ mode on the primary wall switch
2. To deviate from the default settings for a particular mode, all other
modes must be temporarily disabled on that particular grille. Refer
to table 4 in the System Conguration Section for switch positions
related to a particular mode.
3. With the Grille Trim removed, Press and Hold the Push Button (D) until
the Action Indicator (E) turns either a solid Blue or Green and release.
4. This manually forces the fan to run at the current airow (CFM) setting
of the selected mode and the Action Indicator begins to ash the
airow. See the table 6 above for the color values.
When entering custom mode, airow is always initially
indicated on the action indicator
This step can also be used to demonstrate to a building
inspector the air ow rate prescribed for each of the oper-
ating modes!
To make an airow adjustment go to step 5. To make either a Humidity
run time or Occupancy run time adjustment go to step 8.
5. To make an airow adjustment, using a small at head screw driver,
rotate the Airow Adjustment (A) and pause for the action indicator to
ash the airow at that position.
Clockwise increases airow, Counter Clockwise decreases
airow.
6. Repeat step 5 until the airow is at the desired position.
7. Press and release the grille push button to store the new airow setting
and exit custom mode.
8. To make either a humidity or occupancy change, using a small at head
screw driver, rotate the Timer or Humidity Adjustment (B) and pause
for the action indicator to ash either the new humidity differential or
run timer setting for that position.
9. Repeat step 8 until the desired setting is reached.
10. Press and release the push button so store the new setting and exit
custom mode.
Operation
Wall Switch Action Wall Switch Action Button Indicator
Off
• Turn System Off (Press & Hold 4 Seconds) Solid
Auto
• Operates based on grille conguration
• Continuous Mode
• Fan Running-Demand Mode (Humidity and/or Occupancy)
• Fan Not Running- Demand Mode (Humidity and/or Occupancy)
-
ON (Constant)
ON with blink
ON (Constant)
Max
• Produces maximum ventilation for a period of 10 min
• Defaults back to Auto Mode
• Max Mode can be terminated early by selecting the Auto button
ON (Constant)
Table 7: Adjustable Parameters
Troubleshooting
Indicator Fault Solution
1 Flash Primary Grille not connected Check Low Voltage connection at the grille and at the fan
2 Flash Fan Control too hot or too cold
To protect the fan controls, it is recommended ambient temperature around the fan be
below 140
0
F.
3 Flash Primary Grille connected, but not communicating Replace Grille Board
4 Flash Secondary Grille connected, but not communicating Replace Grille Board
5 Flash Fan Run Error- No RPM detected Check motor tach wire on fan board (white wire)
Table 8: Primary Wall Switch ‘OFF BUTTON’ Fault Indicator
* Humidity Run Time:
Compares real time %RH levels to %RH levels prior to the call for
ventilation. When real time %RH decreases to within a PERCENTAGE of
'Normal', ventilation will terminate. This PERCENTAGE is user adjustable on
a 1 to 5 scale, 1 being the furthest from 'normal' to produce the shortest
run time, and 5 being closest to 'normal' to producing the longest run time.