INSTALLATION INSTRUCTIONS Fan Coils FEM4P ... - PROFLO

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INSTALLATION INSTRUCTIONSREFRIGERANT TUBINGRefrigerant Tubing Connection and EvacuationUse accessory tubing package or field--supplied tubing ofrefrigerant grade. Suction tube must be insulated. Do notuse damaged, dirty, or contaminated tubing because itmay plug refrigerant flow--control device. ALWAYSevacuate the coil and field--supplied tubing to 500microns before opening outdoor unit servicevalves.!CAUTIONPRODUCT DAMAGE HAZARDFailure to follow this caution may result in product orproperty damage.A brazing shield MUST be used when tubing sets arebeing brazed to the unit connections to prevent damageto the unit surface and condensate pan fitting caps.Fan Coils: FEM4P, FSM4P, FSU4PUnits have sweat suction and liquid tube connections.Make suction tube connection first.1. Cut tubing to correct length.2. Insert tube into sweat connection on unit until itbottoms.3. Braze connection using silver bearing or non--silverbearing brazing materials. Do not use solder(materials which melt below 800_F / 427_C).Consult local code requirements.4. Evacuate coil and tubing system to 500 micronsusing deep vacuum method.!CAUTIONPRODUCT DAMAGE HAZARDFailure to follow this caution may result in product orproperty damage.Wrap a wet cloth around rear of fitting to preventdamage to piston assembly or TXV and factory--madejoints.REFRIGERANT FLOW -CONTROL DEVICEFEM4P, FSM4P, and FSU4P Models:These units come equipped with a factory installed Pistonmetering device with Teflon ring. If a piston replacement ifrequired, check piston size shown on indoor unit ratingplate to see if it matches required piston shown onoutdoor unit rating plate. If it does not match, replaceindoor piston with piston shipped with outdoor unit. Thepiston shipped with outdoor unit is correct for anyapproved indoor coil combination (See Figure 20).When changing piston, use a back--up wrench. Handtighten hex nut, then tighten with wrench 1/2 turn. Do notexceed 30 ft--lbs.The indoor piston contains a Teflon ring(or seal) which is used to seat against the inside ofdistributor body, and must be installed properly to ensureproper seating in the direction for cooling operation.Figure 20BRASSHEX NUTRefrigerant Flow -Control DeviceTEFLON SEALPISTONRETAINERTEFLON RINGPISTONFLOW INCOOLINGDISTRIBUTORBRASSHEX BODY! CAUTIONSTRAINERPRODUCT OPERATION HAZARDFailure to follow this caution may result in improper productoperation.If using a TXV in conjunction with a single--phase reciprocatingcompressor, a compressor start capacitor and relay arerequired. Consult outdoor unit pre--sale literature for start assistkit part number.14 496 01 5501 00
INSTALLATION INSTRUCTIONSCONDENSATE DRAINSUnit is provided with primary and secondary 3/4” (19mm)NPT drain connections. Refer to Figure 3, Figure 4,Figure 5, Figure 6, and Figure 7 to identify the primaryand secondary locations. To prevent property damageand achieve optimum drainage performance, BOTHprimary and secondary drain lines should be installed andinclude properly sized condensate traps (refer toFigure 21). Factory approved condensate traps areavailable (accessory part number EBAC01CTK).To connect drainlines, the drain connection knock--outsmust be removed. Use a knife to start the opening nearthe tab and using pliers, pull the tab to remove theknock--out. Clean the edge of the opening if necessary.After drain fittings are installed, caulk the seam betweenthe fitting and the cover to retain the low leak rating of theunit.It is recommended the PVC fittings be used on the plasticcondensate pan. Do not over--tighten. Finger--tightenplus 1--1/2 turns. Use pipe dope, to ensure proper seal.Install traps in the condensate lines as close to the coil aspossible (refer to Figure 23), but avoid blocking filteraccess panel.Install drain lines below the bottom of the drain pan andpitch the drain lines down from the coil at least 1/4 inch perfoot of run (6mm per 0.3m). Horizontal runs over 15 feet(5m) long must also have an anti--siphon air vents (standpipes), installed ahead of the horizontal runs. Extremelylong horizontal runs may require oversized drain lines toeliminate air trapping.Route primary drain line to the outside or to a floor drain.Check local codes before connecting to a waste (sewer)line.Route the secondary drain line to a place in compliancewith local installation codes where it will be noticed whenunit is operational. Condensate flowing from secondary(overflow) drain indicates a plugged primary drain -- unitrequires service or water damage will occur.Prime all traps, test for leaks, and insulate drain lineswhere sweating could cause water damage. Consult localcodes for additional requirements or precautions.If a gravity drain cannot be used, install a condensate pump.Install the pump as close to the indoor section as possible.! CAUTIONPRODUCT or PROPERTY DAMAGE HAZARDFailure to follow this caution may result in productor property damage.Use only full size P -traps in the condensate line(refer to Figure 21). Shallow, running traps are inadequateand DO NOT allow proper condensatedrainage (refer to Figure 22).Figure 21UNITFigure 22Figure 23Fan Coils: FEM4P, FSM4P, FSU4PRecommended Condensate Trap2” MIN (51mm)2” MIN (51mm)Insufficient Condensate TrapDO NOT USE SHALLOW RUNNING TRAPS!Condensate DrainFILTERACCESSPANELSECONDARY DRAIN WITHAPPROPRIATE TRAP REQUIRED(USE FACTORY KIT ORFIELD -SUPPLIED TRAP)PRIMARY TRAP REQUIRED (USE FACTORY KIT ORFIELD -SUPPLIED TRAP OF PROPER DEPTH.STANDARD P -TRAPS ARE NOT SUFFICIENT. SEEFIGURE OF RECOMMENDED CONDENSATE TRAP)496 01 5501 00 15
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INSTALLATION INSTRUCTIONS Fan Coils FEM4P ... - PROFLO

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