50TC WEATHERMAKER® rooftop unit were designed by customers for customers. The units are factory tested in cooling mode. The SAV™ System Difference 48HCDD12A2A5-0A0A048 = Gas Heat Pkg. RooftopHC = High EfficiencyD = Low Gas HeatD = 2 stage Cooling12 = 10 ton (11.5 EER)A = None2 = Medium Static Option - Belt DriveA = Al/Cu - Al/Cu5 = 208/230-3-600 = Electromechanical Controls. Can be used with W7212 EconoMi$er IV (Non-Fault Detection and Diagnostic)A = None0 = NoneA = None0 = StandardThe Carrier rooftop unit (RTU) was designed by customers for customers. With “no-strip” screw collars, handled access panels, and more we’ve made your unit easy to install, easy to maintain and easy to use.Easy to install:All WeatherMaster® units are field-convertible to horizontal air flow, which makes it easy to adjust to unexpected job-site complications. Lighter units make easy replacement. Most of Carrier’s 3-12.5 ton 48HC rooftops fit on existing Carrier curbs dating back to 1989.

Also, our large control box gives you room to work and room to mount Carrier accessory controls.Easy to maintain:Easy access handles by Carrier provide quick and easy access to all normally serviced components. Our “no-strip” screw system has superior holding power and guides screws into position while preventing the screw from stripping the unit’s metal. Take accurate pressure readings by reading condenser pressure with panels on. Simply remove the black, composite plug, route your gauge line(s) through the hole, and connect them to the refrigeration service valve(s). Now, you can take refrigeration system pressure readings without affecting the condenser airflow.Easy to use:The newly designed, central terminal board by Carrier puts all your connections and troubleshooting points in one convenient place, standard. Most low voltage connections are made to the same board and make it easy to find what you’re looking for and easy to access it. Carrier rooftops have high and low pressure switches, a filter drier, and 2-in (51mm) filters standard.

FEATURES AND BENEFITSSingle-stage cooling capacity control on 04 to 07 models, 2-stage cooling capacity control on 08 to 14 modelsSEER up to 15.6, EER up to 13.0IEER’s up to 13.0 with single speed indoor fan motor, and up to 14.3 with SAVt (Staged Air Volume) 2-speed/VFD indoor fan motor systemExclusive non-corrosive composite condensate pan in accordance with ASHRAE 62 Standardcentral air conditioner repair companiesside or center drainGas efficiencies up to 82%Induced draft combustion designRedundant gas valve, with up to 2 stages of heatingPre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protectionTXV refrigerant metering system on each circuitFully insulated cabinetExclusive IGC solid-state control for on-board diagnostics with LED error code designation, burner control logic and energy saving indoor fan motor delayDedicated 3-5 ton “Low NOx” models available that meet California Air Quality Management NOx requirement of 40 nangram/car air conditioner not cooling fast

Low NOx models include stainless steel heat exchangersCooling operating range up to 125°F (52°C), and down to 35°F (2°C), 0°F (-18°C) on 11 size standardAccess panels with easy grip handlesInnovative , easy starting, no--strip screw feature on unit access panelsTwo-inch disposable return air filtersTool-less filter access doorBelt drive evaporator-fan motor and pulley combinations available on all three phase modelsElectric Drive X13 (5 speed/torque) motor on 04 to 06 modelsNew terminal board facilitating simple safety 15 ton ac unitcircuit troubleshooting and simplified control box arrangementField Convertible airflow (3-12.5 ton). Being able to convert a unit from vertical airflow to horizontal makes it easy to overcome job site complications. 12.5 ton models require a simple supply air duct cover to field convert from factory vertical to horizontal.Provisions for thru-the--bottom power entry capability as standardSingle point gas and electric connectionsFull perimeter base rail with built-in rigging adapters and fork truck slotsScroll compressors with internal line-break overload protection24-volt control circuit protected with resettable circuit breakerPermanently lubricated evaporator-fan motorTotally enclosed condenser motors with permanently lubricated bearingsLow Pressure switch and high-pressure switch protectionExclusive IGC anti-cycle protection for gas heat operationSolid-state electronic direct spark ignition systemFlame roll-out safety protectorLiquid line filter drier on each circuitFactory-installed Humidi-MiZer® Adaptive Dehumidification System on all