Carrier WeatherMaker 50TCQ07 Installation Instructions Manual

Also see for WeatherMaker 50TCQ*07: Product data

14Fig. 19 — Condensate Drain Piping DetailsNOTE: All units must have an external trap for condensate drain-age. Install a trap at least 4-in. (102 mm) deep and protect againstfreeze-up. If drain line is installed downstream from the externaltrap, pitch the line away from the unit at 1-in. per 10 ft (25 mm in3 m) of run. Do not use a pipe size smaller than the unit connec-tion (3/4-in.).Step 11 — Make Electrical ConnectionsNOTE: Check all factory and field electrical connections for tight-ness. Field-supplied wiring shall conform with the limitations ofminimum 63°F (33°C) rise.FIELD POWER SUPPLYIf equipped with optional powered convenience outletThe power source leads to the convenience outlet’s transformerprimary are not factory connected. Installer must connect theseleads according to required operation of the convenience out-let. If an always-energized convenience outlet operation is de-sired, connect the source leads to the line side of the unit-mounted disconnect. (Check with local codes to ensure thismethod is acceptable in your area.) If a de-energize via unitdisconnect switch operation of the convenience outlet is de-sired, connect the source leads to the load side of the unit dis-connect. On a unit without a unit-mounted disconnect, connectthe source leads to compressor contactor C and indoor fan con-tactor IFC pressure lugs with unit field power leads.Refer to Fig. 28 for power transformer connections and the dis-cussion on connecting the convenience outlet on page 18.Field power wires are connected to the unit at line-side pressurelugs on compressor contactor C and indoor fan contactor IFC(see wiring diagram label for control box component arrange-ment) or at factory-installed option non-fused disconnect switch.Maximum wire size is #2 AWG (copper only). See Fig. 20 andunit label diagram for field power wiring connections.NOTE: TEST LEADS - Unit may be equipped with short leads(pigtails) on the field line connection points on contactor C oroptional disconnect switch. These leads are for factory run-testpurposes only; remove and discard before connecting fieldpower wires to unit connection points. Make field power con-nections directly to line connection pressure lugs only.Fig. 20 — Power Wiring ConnectionsFig. 21 — Disconnect Switch and UnitWARNINGFailure to follow this warning could result in personal inju-ry or death.Do not use gas piping as an electrical ground. Unit cabinetmust have an uninterrupted, unbroken electrical ground tominimize the possibility of personal injury if an electricalfault should occur. This ground may consist of electricalwire connected to unit ground lug in control compartment,or conduit approved for electrical ground when installed inaccordance with NEC (National Electrical Code); ANSI/NFPA 70, latest edition (in Canada, Canadian ElectricalCode CSA [Canadian Standards Association] C22.1), andlocal electrical codes.NOTE: Trap should be deep enough to offset maximum unit staticdifference. A 4-in. (102 mm) trap is recommended.MINIMUM PITCH1˝ (25 mm) PER10´ (3 m) OF LINE BASE RAILOPENVENTTO ROOFDRAINDRAIN PLUGROOFCURBSEE NOTE3˝ (76 mm)MINWARNINGFIRE HAZARDFailure to follow this warning could result in intermittentoperation or performance satisfaction.Do not connect aluminum wire between disconnect switch and50TCQ unit. Use only copper wire. (See Fig. 21.)Units Without Non-Fused Disconnect OptionUnits With Non-Fused Disconnect Option246135L1L2L3OptionalDisconnectSwitchDisconnect factory test leads; discard.FactoryWiring11 13 13L1 L2 L3TBCIFC(3 PhaseIndoor Motor)(1 Phase Indoor Motorand 1 Phase Unit)208/230-1-60208/230-3-60460-3-60575-3-60DisconnectperNECCOPPERWIRE ONLYELECTRICDISCONNECTSWITCHALUMINUMWIRE