FloAire FAV - Manual (Page 23)

23
Check Installation:
√
Check
The installation environment conforms to the VFD manual.
The drive is mounted securely.
Space around the drive meets the drive’s specification for cooling.
The motor and driven equipment are ready for start.
The drive is properly grounded.
The input power voltage matches the drive’s nominal input voltage.
The input power connections at U1, V2, and W1 are connected and tight.
The input power protection is installed.
The motor power connection at U2, V2, and W2 are connected and tight.
The input, motor, and control wiring are run in separate conduit runs.
The control wiring is connected and tight.
NO tools or foreign objects (such as drill shavings) are in the drive.
NO alternative power source for the motor (such as a bypass connection) is
connected - NO voltage is applied to the output of the drive.
TEMPERATURE CONTROL SYSTEMS
401M
•
The 401M replaces building-exhaust air with tempered make-up air.
•
A discharge-sensing controller that compensates for intake air temperature changes modulates
the burner flame.
•
A manual, remote selector switch controls the unit’s operation.
402M
•
The 402M is used primarily in door-heater applications. The space override thermostat increases
the discharge-air temperature when needed to maintain temperature.
•
The amount of override temperature is controlled via a 0-40 degree potentiometer on the side of
the temperature set point dial.
•
A manual, remote selector switch may control the unit’s operation.
403M
•
The 403M maintains a constant space temperature.
•
A modulating space thermostat adjusts the burner to maintain the supply-air temperature
necessary to compensate for changes in the building’s heat requirement.
•
The amplifier limits the maximum and minimum temperature of the supply air the unit delivers.
•
A manual, remote selector switch may control the unit’s operation.
404M
•
The 404M maintains a constant space temperature, day or night. During day operation, a
modulating-space thermostat adjusts the burner to maintain the supply-air temperature necessary
to compensate for changes in building’s heat requirements.
•
The amplifier limits the maximum and minimum temperature of the supply air the unit delivers.
•
During night operation, a space thermostat cycles the unit ON or OFF to maintain the space
temperature.
•
A manual remote selector switch may control unit operation.
•
The DAY/NIGHT mode is automatically controlled via a programmable thermostat or time clock.