FloAire Demand Control Ventilation System - Manual (Page 16)

A0023662
May 2014 Rev.5
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If the signal from the make-up air is not received by the DCV 90 Sec (factory default) after the start signal
is sent to the supply fan, an alarm will appear on the HMI. The DCV panel ships with a jumper between
terminals IL1A and IL1B for supply #1 and IL2A and IL2B for supply #2 if present. The jumper has to be
removed first before wiring the interlock from a make-up air unit.
Appliances Pilot Check Warning:
Every time an electronic gas valve is reset, a warning message will be displayed on the HMI for 1 minute.
A CLEAR button will be displayed on the HMI to clear the warning message and stop the beeps. If after 1
minute, the clear button is not pressed, the message disappears. This message is normal and provided
as a reminder only. There is no need to take any action.
Building Management System (Dry Contact)
1. All controls are equipped with the ability to control the fans via a dry contact BMS interlock.
Terminal IO1 should be energized by closing a dry contact placed between terminals H1 and IO1.
NOTE: the CO Censor option must be disabled for BMS dry contact functionality.
2. Removing the signal from IO1 will typically cause the fans to turn off. However, if the duct
thermostat sensors are hot or if the fans are energized through the fan button on the HMI, then
the fans will continue to run.
NOTE: If the panel is ordered with a digital building management option, such as CASlink,
BACnet, or
Lonworks, please refer to the Building Management Owner’s Manual for alternative
fan interlock scheduling.
Minimum Room Temperature
This option is designed to prevent unnecessary automatic fan activation due to excessively cold room
temperatures. This value is adjustable between 50 degrees and 85 degrees. As long as the room
temperature reading is above the Min Room Temp set value, the package will use the actual room
temperature sensor reading to calculate the duct thermostat offset. However, if the room temperature
sensor reading is below the Min Room Temp set value, the package will ignore the actual room temp
reading and use the Min Room Temp set value as a reference instead. This prevents a system from
activating the fans unnecessarily, due to a large gap between room temperature and the hood duct
temperature. This option can also help alleviate fan activation troubles with lower temperature
appliances, which are not satisfying the minimum temperature requirements for fan activation.
Self-Cleaning (Optional)
1. During the wash cycle, water will be sprayed in the plenum and duct and surfactant will be
injected at a set frequency. The wash cycle will stop when the wash timer expires or when the
Wash button is pressed again.
2. The wash timer is factory set to 3 minutes and is adjustable through the Configuration Menu. The
surfactant is injected for 1 second at the start of each minute of Wash. This setting is not
adjustable. If equipped with CORE Fire Protection, the wash timer is not configurable through the
ECPM03 control board. Refer to the CORE Owner’s Manual for further information.
3. Hood filters MUST remain in place during the wash cycle.
4. The wash cycle can be initiated in several ways:
a. Manually, when the WASH button is pressed on the HMI.
b. Automatically, if the following conditions are met

Fans will need to go out of modulation mode either with the FANS button being
pressed or by the duct temperature cooling down and hysteresis value and timer
are met.

The fans will need to have effectively run cumulatively for a period of time longer
than the “Wash Min Fan Runtime” value configured under “Misc Options”.
Preparation Time mode and Cool Down mode fan time do not count towards
runtime. The runtime is reset to zero when the wash cycle is run.