First Co FRR - Manual (Page 2)

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 air handlers 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.
In keeping with its policy of continuous progress and product improvement, the manufacturer reserves the right to discontinue
or change without notice any or all specifications or designs without incurring obligations.
INTRODUCTION
Model nomenclature for the air handlers described in this installation instruction are as follows:
RR - Furred-in, single unit designed for concealed applications along room walls or corners.
RM- Furred-in master component to be coupled through risers to corresponding slave unit.
RS - Furred-in slave component coupled to master, but with all independent controls and valving.
The air handler units are designed for vertical, “stacked”, applications with nominal air capacities of 300 through 1200 CFM.
Models incorporate a positive slope metal or plastic removable drain pan with 3/4” copper drain coupling. Optional
equipment includes, multiple coil combinations in three, four and five row water coils, multiple supply grille and riser
position combinations, fresh air inlets and multiple combinations of valve packages. Two pipe heating and cooling, two pipe
with auxillary electric heat, four pipe heating and cooling and four pipe with auxillary electric heat are available with manual
or automatic changeover controls with two types of thermostat options.
INSTALLATION
The licensed installer must adhere strictly to all local and national code requirements pertaining to the installation of this
equipment.
All air handling units are agency listed for installation with zero inches clearance to combustible materials. This includes the unit
cabinet, supply grilles or connecting ducts if installed.
All maintenance or servicing is accomplished through the return air grille opening where access is provided to all electrical and
plumbing connections.
Installation Precautions
While awaiting installation, always protect units from adverse weather conditions, theft or vandalism at the jobsite.
No wiring or other work should be attempted without first ensuring that the air handler 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.
Units must be installed level to ensure proper drainage and operation.
Be sure that the drain pan is free from foreign construction 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.
WARNING: Never use the risers to lift the units. Risers are fitted loosely within expansion guides and attached
to coil feed pipes which can be damaged.
CAUTION: When securing drywall or other wall treatments to this cabinet take care to avoid penetration into the
coil, manifolding or electrical wiring by fasteners which could cause flooding or an electrical shock hazzard.
PROCEDURE 1 – CHECK EQUIPMENT
Unpack unit and move to final location. Remove packaging taking care not to damage unit. Inspect air handler unit for
damage prior to installation. File a claim with shipping company if shipment is damaged. Carefully inspect blower for rough
handling that can cause misalignment or shaft damage. Check to make sure the valve packages have not been damaged
during shipment. Check ID tags for riser tier, floor and room numbers then ensure proper placement before proceeding with
the installation . Blow out risers if protective caps are missing and cover again with tape or foil.
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