Carrier 50HCQ12 Installation Instructions Manual

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4C10846Fig. 1 -- Unit Dimensional Drawing – 12 Size Unit (cont.)INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Consult local building codes and the NEC (NationalElectrical Code) ANSI/NFPA 70 for special installa-tion requirements.2. Determine unit location (from project plans) or selectunit location.3. Check for possible overhead obstructions which mayinterfere with unit lifting or rigging.Step 1 — Plan for Unit LocationSelect a location for the unit and its support system (curbor other) that provides for at least the minimum clearancesrequired for safety. This includes the clearance tocombustible surfaces, unit performance and service accessbelow, around and above unit as specified in unitdrawings. See Fig. 2.NOTE: Consider also the effect of adjacent units.Unit may be installed directly on wood flooring or on ClassA, B, or C roof--covering material when roof curb is usedDo not install unit in an indoor location. Do not locate airinlets near exhaust vents, relief valves, or other sources ofcontaminated air.18”(457) * 42"(1067)* Required bottom condensate drain connection.Otherwise, 36” (914mm) for condensate connection.42"(1067)42"(1067)C10849Fig. 2 -- Service Clearance Dimensional DrawingAlthough unit is weatherproof, avoid locations that permitwater from higher level runoff and overhangs to fall ontothe unit.Select a unit mounting system that provides adequateheight to allow for removal and disposal of frost and icethat will form during the heating--defrost mode as well asallow installation of condensate trap per requirements.Refer to Step 9 — Install External Condensate Trap andLine – for required trap dimensions.50HCQD12