National Comfort Product CPG41238-U Series Installation Manual
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Contents
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Installation Guide for Comfort Pack (CPG) Units6enough to allow for return air provisions to the unit. To reducethe possible transmission of sound and vibration, a resilientmaterial such as rubber or cork should be installed between thesupport and the base of the unit. All spaces around the top, sidesand bottom of the exterior grille area should be caulked andsealed to the wall, making sure that the openings for drainage inthe bottom edge are not blocked.If the optional wall sleeve is used, caulk the spaces between thesleeve and the wall. Completely fill the clearance on all sidesbetween the unit and the wall sleeve with a polyurethane foamsealant (follow manufacturer’s suggested application manual).Provide the unit with support inside the building in the area ofthe return air opening. Slide the unit into the wall sleeve andfasten the unit to the sleeve with the five screws provided withthe sleeve.NOTE: For ease of installation, install the cabinetinto the wall sleeve first without the coolingchassis. Then slide cooling chassis in aftercabinet is in place.DrainageThe 3/4” I.D. flexible tubing included should be connected to theComfort Pack primary drain connection so that it can easily bedisconnected if the cooling chassis must be removed. A trap atleast 2” deep should be provided close to the drain pan. Thetubing should not be higher than the bottom of the unit drainpan at any point to assure proper drainage and allow chassisremoval. The drain line should pitch downward at least 1” per 10ft. to an open building drain trap.SECONDARY DRAIN TRAPMUST BE INSTALLEDDrain Pan3/4” I.D. Flexible Tubing Included 2”min. Pitch Downward 1” per 10ft.Shaded Area Represents ComponentsProvided and Installed By OthersHighest Point Must Not Be AboveBottom of Drain Pan3/4” O.D. Drain Connection(Primary Drain)Be sure that the electrical service provided to the building canhandle the load imposed by the unit.IMPORTANT — This Document is customer property and is toremain with this unit. Please refer to service information packupon completion of work to register the unit’s warranty. Theseinstructions do not cover all variations in systems or providefor every possible contingency to be met in connection with theinstallation. Should further information be desired or shouldparticular problems arise which are not covered sufficientlyfor the purchaser’s purposes, the matter should be referred toyour installing dealer or local distributor before contacting themanufacture.NOTE: THE UNIT MUST NEVER BE PLACEDON ITS SIDE OR UPSIDE DOWN AS THECOMPRESSOR OIL WILL RUN IN THE COOLINGCIRCUIT AND SERIOUSLY DAMAGE THE UNIT.InstallationNOTE: These installation and maintenanceinstructions should be left with the unit forfuture reference.INSTALLATION:This unit must be installed in accordance withall applicable codes. This unit is not to be usedfor temporary heating of buildings or structures underconstruction.FOR MAXIMUM PERFORMANCE, IT IS IMPERATIVE THATTHE COOLING CHASSIS AIR DIVIDER BE SEALED TO THECABINET AIR SEAL. ANY LEAKAGE WILL ALLOW OUTSIDEUNCONDITIONED AIR TO INFILTRATE AND MIX WITH THECONDITIONED AIR. THIS CONDITION WILL DEGRADE UNITPERFORMANCE. ALL UNITS SHOULD BE INSPECTED FORTHIS CONDITION, AS DURING TRANSPORTATION ANDINSTALLATION THE SEALS CAN BE DISTURBED. IF REQUIRED,A LIGHT BEAD OF CAULKING IS RECOMMENDED TO SEAL THECHASSIS, TO THE AIR SEAL TO ELIMINATE LEAKAGE.OUTSIDE/UNCONDITIONED AIR MUST NOT BE INTRODUCEDINTO THE RETURN AIR STREAM OF THIS UNIT. THISCONDITION WILL ALSO DEGRADE THE PERFORMANCEOF THE UNIT AND MAY VOID EQUIPMENT WARRANTY.The unit should be provided with support inside the building inthe area of the return air opening. The support should be high |
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