Carrier WeatherMaker 50TCQ07 Installation Instructions Manual

Also see for WeatherMaker 50TCQ*07: Product data

8INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Consult local building codes and the NEC (National Elec-trical Code) ANSI/NFPA 70 for special installationrequirements.2. Determine unit location (from project plans) or select unitlocation.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 (curb orother) that provides for minimum clearances required for safe-ty (including clearance to combustible surfaces), unit perfor-mance and service access below, around and above unit asspecified in unit drawings. See Fig. 3 (on page 6).NOTE: Consider also the effect of adjacent units.Unit may be installed directly on wood flooring or on Class A,B, or C roof-covering material when roof curb is used.Do not install unit in an indoor location. Do not locate air inletsnear exhaust vents or other sources of contaminated air.Although unit is weatherproof, avoid locations that permit wa-ter from higher level runoff and overhangs to fall onto the unit.Select a unit mounting system that provides adequate height toallow for removal and disposal of frost and ice that will formduring the heating-defrost mode as well as allow installation ofcondensate trap per requirements. Refer to “Step 10 — InstallExternal Condensate Trap and Line” on page 13 for requiredtrap dimensions.ROOF MOUNTCheck building codes for weight distribution requirements.Unit operating weight is shown in Table 5.Step 2 — Plan for Sequence of Unit InstallationThe support method used for this unit will dictate different se-quences for the steps of unit installation. For example, on curb-mounted units, some accessories must be installed on the unit be-fore the unit is placed on the curb. Review the following for rec-ommended sequences for installation steps.CURB-MOUNTED INSTALLATION1. Install curb2. Install field-fabricated ductwork inside curb3. Install accessory thru-base service connection package(affects curb and unit) (refer to accessory installationinstructions for details)4. Prepare bottom condensate drain connection to suitplanned condensate line routing (refer to “Step 10 —Install External Condensate Trap and Line” on page 13 fordetails)5. Rig and place unit6. Install outdoor air hood7. Install condensate line trap and piping8. Make electrical connections9. Install other accessoriesPAD-MOUNTED INSTALLATION1. Prepare pad and unit supports2. Check and tighten the bottom condensate drain connectionplug3. Rig and place unit4. Convert unit to side duct connection arrangement5. Install field-fabricated ductwork at unit duct openings6. Install outdoor air hood7. Install condensate line trap and piping8. Make electrical connections9. Install other accessoriesFRAME-MOUNTED INSTALLATIONFrame-mounted applications generally follow the sequence fora curb installation. Adapt as required to suit specific installa-tion plan.Step 3 — Inspect UnitInspect unit for transportation damage. File any claim withtransportation agency.Before installation of unit, confirm that the voltage, amperageand circuit protection requirements listed on unit data plateagree with power supply provided.Step 4 — Provide Unit SupportROOF CURB MOUNTAccessory roof curb details and dimensions are shown inFig. 6. Assemble and install accessory roof curb in accordancewith instructions shipped with the curb. Insulate and weather-proof all external ductwork, joints, and roof openings withcounter flashing and mastic in accordance with applicablecodes.Table 5 — Operating Weights50TCQA UNITS LB (KG)Component A07Base Unit 630 (286)EconomizerVertical 50 (23)Horizontal 70 (48)Powered Outlet 35 (16)Curb14-in. (356 mm) 115 (52)24-in. (610 mm) 197 (89)