Carrier WeatherMaker 50TC07 Series Installation Instructions Manual

Also see for 50TC B07 Series: Installation instructions

Carrier WeatherMaker 50TC07 Series Installation Instructions Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500159-01 Printed in U.S.A. Form 50TC-7-01SI Pg 1 12-17 Replaces: 50TC-4-7-02SIInstallation Instructions50TC units for installation in the United States contain use of Carrier's Staged Air Volume (SAV™) 2-speedindoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiency standard of2018.50TC units for installation outside the United States may or may not contain use of the SAV 2-speed indoorfan control system as they are not required to comply with the U.S. Department of Energy (DOE) efficiencystandard of 2018.For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to the VariableFrequency Drive (VFD) Factory-Installed Option 2-Speed Motor Control Installation, Setup, andTroubleshooting manual.CONTENTSPageSAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . 1-6Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . . ..2Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Step 1 — Plan for Unit Location . . . . . . . . . . . . . . . . . . 6Step 2 — Plan for Sequence of Unit Installation . 7Step 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Step 4 — Provide Unit Support . . . . . . . . . . . . . . . . . . . 7Step 5 — Field Fabricate Ductwork. . . . . . . . . . . . . . . 9Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 9Step 7 — Convert to Horizontal and ConnectDuctwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Step 8 — Install Outside Air Hood . . . . . . . . . . . . . . . 10Step 9 — Install External Condensate Trap andLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Step 10 — Make Electrical Connections . . . . . . . . . 12Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Humidi-MiZer System Control Connections . . . . . 18EconoMi$er X (Factory-Installed Option) . . . . . . . 20PremierLink Controller (Factory Option) . . . . . . . . 34Supply Air Temperature Sensor . . . . . . . . . . . . . . . . . 37Field Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Economizer Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 40RTU Open Controller System . . . . . . . . . . . . . . . . . . . 43Field Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Communication Wiring — Protocols . . . . . . . . . . . . 50Local Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Outdoor Air Enthalpy Control . . . . . . . . . . . . . . . . . . . 52Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Step 11 — Adjust Factory-Installed Options . . . . . 54Step 12 — Install Accessories. . . . . . . . . . . . . . . . . . . 54Step 13 — Check Belt Tension . . . . . . . . . . . . . . . . . . 54Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 55START-UP CHECKLIST . . . . . . . . . . . . . . . . . CL-1, CL-2SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service, main-tenance, or use can cause explosion, fire, electrical shock orother conditions which may cause personal injury or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. The quali-fied installer or agency must use factory-authorized kits or ac-cessories when modifying this product. Refer to the individualinstructions packaged with the kits or accessories wheninstalling.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloths for brazing operations and have afire extinguisher available. Read these instructions thoroughlyand follow all warnings or cautions attached to the unit. Con-sult local building codes and appropriate national electricalcodes (in USA, ANSI/NFPA 70, National Electrical Code(NEC); in Canada, CSA C22.1) for special requirements.It is important to recognize safety information. This is thesafety-alert symbol. When you see this symbol on the unit andin instructions or manuals, be alert to the potential for personalinjury.Understand the signal words DANGER, WARNING, CAU-TION, and NOTE. These words are used with the safety-alertsymbol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNING signi-fies hazards which could result in personal injury or death.CAUTION is used to identify unsafe practices, which may re-sult in minor personal injury or product and property damage.NOTE is used to highlight suggestions which will result in en-hanced installation, reliability, or operation.WARNINGFIRE, EXPLOSION HAZARDFailure to follow this warning could result in personalinjury or death.Disconnect gas piping from unit when leak testing at pres-sure greater than 0.5 psig (3450 Pa). Pressures greater than0.5 psig (3450 Pa) will cause gas valve damage resulting inhazardous condition. If gas valve is subjected to pressuregreater than 0.5 psig (3450 Pa), it must be replaced beforeuse. When pressure testing field-supplied gas piping atpressures of 0.5 psig (3450 Pa) or less, a unit connected tosuch piping must be isolated by closing the manual gasvalve.WeatherMaker®50TC07Single Package Rooftop Cooling Onlywith Puron® (R-410A) Refrigerant