What to do if the Enviro Fan fuse tripped?
If the Enviro Fan fuse has tripped, it may be due to incorrect wiring of the thermostat or controller that shorts the 24VAC and COM. Replace the fuse by removing the tripped fuse with fuse pullers and replace it with one of the below listed fuses.
Explains the meaning of DANGER, WARNING, CAUTION, and NOTE symbols used in the manual.
Emphasizes disconnecting all power sources before installation or servicing.
Advises disconnecting power and control circuits before servicing.
Stresses disconnecting power before servicing heating elements.
Details safe practices for supporting and securing units during lifting.
Advises on protecting flammable materials and having fire extinguishers ready.
Overview of the features of the HL Series fan coil units.
Introduction to the fan coil unit manual and its purpose.
Guidelines for inspecting units upon receipt to check for damage or discrepancies.
Instructions for safely moving, positioning, and installing the unit.
Information on meeting UL and CSA standards for heating and cooling equipment.
Illustrates a standard method for installing the unit in a ceiling.
Information on drain pan removal and coil configurations for heating and cooling.
Guidance on connecting chilled/hot water or refrigerant lines to the unit.
Details on installing auxiliary drain pans and connecting ductwork to the unit.
Guidance on making electrical connections and accessing the enclosure.
Instructions for installing and adjusting the telescoping bottom panel.
Diagrams showing required clearances for exposed horizontal fan coil units.
Clearances required for installations with height limitations.
Clearances needed for installations with width restrictions.
Notes on clearances for access to control enclosures and piping.
Initial steps and checks before starting the unit operation.
Procedures for filling and venting water systems.
Steps to balance airflow and establish system operating conditions.
Advice on establishing maintenance schedules and logs for units.
Instructions for servicing and cleaning the motor and blower assembly.
Methods for cleaning heating and cooling coils to maintain performance.
Checks and maintenance for electrical connections and control components.
Guidance on inspecting valve packages and piping for leaks.
Guidance on replacing throwaway filters on a regular basis.
Items to check upon unit receipt for damage and correctness.
Checks for proper mounting, service, and code compliance during installation.
Verification of piping, valve packages, and insulation during installation.
Checks for proper ductwork, grilles, and freeze protection.
Verification of wiring diagrams and field wiring compliance.
Final checks before energizing the unit, including voltage and connections.
Details on installing, operating, and maintaining the Fan Relay Board.
Information on wiring, voltage, and temperature ratings for the FRBii.
Identification of terminal block signals and connector layouts.
Common issues and corrective actions for the fan relay board.
Diagnosing and resolving problems with PSC motors.
Diagnosing and resolving problems with EC motors.
Identifying and fixing issues related to insufficient cooling or unit sweats.
Troubleshooting electric heat operation, overheating, and insufficient heating.
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