First Co EVBQ (Variable Speed) User Manual
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GENERAL
The manufacturer assumes no responsibility for equipment installed in violation of any code requirement.
These instructions give information relative to the installation of these fan coil units only. For other related equipment refer to
the proper instructions.
Material in this shipment has been inspected at the factory and released to the transportation agency in good condition. When
received, a visual inspection of all cartons should be made immediately. Any evidence of rough handling or apparent damage
should be noted on the delivery receipt and the material inspected in the presence of the carrier’s representative. If damage is
found, a claim should be filed against the carrier immediately.
Note: State of MA.-248 CMR code of the state of MA. requires a pump timer (60 seconds on every 6 hours). See diagram.
INTRODUCTION
The EVBQ Fan Coil units are designed for flexibility and can be used for upflow, horizontal left or right side down applica-
tions. These units are available for application in systems of 18,000 through 48,000 Btuh nominal cooling capacities.
Heating is accomplished with the factory installed hot water coil.
INSTALLATION
The licensed installer must adhere strictly to all local and national code requirements pertaining to the installation of this
equipment.
All EVBQ Fan Coil units are U.L. listed for installation with zero inches clearance to combustible materials. This includes the unit
cabinet, discharge plenum and connecting ducts. Sufficient clearance must be provided at the front of the unit to allow access
to electrical controls and removal of the motor / blower assembly for servicing. This clearance distance should be approximately
the same depth as the fan coil unit.
Installation Precautions
Always use proper tools and equipment.
No wiring or other work should be attempted without first ensuring that the fan coil is completely disconnected from the power
source and locked out. Always verify that a good ground connection exists prior to energizing any power sources.
Always review the nameplate on each unit for proper voltage and control configurations. This information is determined from
the components and wiring of the unit and may vary from unit to unit.
When soldering or brazing to the unit, it is recommended to have a fire extinguisher readily available. When soldering close to
valve packages or other components, heat shields or wet rags are required to prevent damage.
When the fan coil unit is in operation components are rotating at high speeds.
Units must be installed level to ensure proper drainage and operation.
Be sure that the drain pan is free from foreign material prior to start up.
Check filter media installation to ensure that it is installed correctly. Use the directional arrows or other information on the filter
to determine the proper flow direction.
Ensure that the air distribution system does not exceed the external static rating of the unit.
NOTE: The variable speed unit is compatible with damper duct systems when designed properly. Consult the damper
system manufacturer for proper design.
PROCEDURE 1 – CHECK EQUIPMENT
Unpack unit and move to final location. Remove carton taking care not to damage unit.
Inspect equipment for damage prior to installation. File a claim with shipping company if shipment is damaged. Locate unit
nameplate which contains proper installation information. Check nameplate to be sure unit matches job specifications.
PROCEDURE 2 – MOUNT FAN COIL
All EVBQ Fan Coil units are U.L. listed for installation with zero inches clearance to combustible materials. This includes the
unit cabinet, discharge plenum and connecting ducts. Unit must be mounted on a field supplied return plenum, lie on its
side or hang from the ceiling. Sufficient clearance must be provided at the front of the unit to allow for wiring, piping, and
servicing the unit. This clearance distance should be approximately the same depth as the fan coil unit.
IMPORTANT:
When unit is installed over a finished ceiling and/or living area, building codes may require a field-supplied
secondary condensate pan to be installed under the entire unit. Some localities may allow the alternative of running a
separate secondary condensate line or applying a field mounted condensate overflow switch. Consult local codes for
additional restrictions or precautions.
NOTE:
When installing any fan coil over a finished ceiling and/or living area, installation of a secondary drain pan under
entire unit is recommended to avoid damage to ceiling.
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