Carrier Weathermaster – 48P Commercial Rooftop Units
- 48P2 – Vertical CV/SAV
- 48P3 – Vertical VAV
- 48P4 – Horizontal CV/SAV
- 48P5 – Horizontal VAV
Carrier P Series rooftop units are pre-wired and factory-tested in both cooling and heating modes. All models feature an industrial grade cabinet with fully hinged access panels. Forward-curved supply fans provide the performance of up to 4 in. external static pressure (ESP) and 6 in. ESP with optional airfoil supply fans.
Units are available in the constant volume (CV), staged air volume (SAV), or variable air volume (VAV) applications, with a wide variety of gas heating options. Units come with the ComfortLink™ DDC (direct digital control) control system, scroll compressors on independent thermostatic expansion valve (TXV) controlled refrigeration circuits.
- 30 to 100 Nominal Tons
Description
Performance Features
- Multiple high-efficiency scroll compressors include a crankcase heater and vibration isolation
- Up to 8 steps of cooling capacity control with intertwined evaporator coils for full-face active operation at part-load conditions
- Cooling operating range from 32 to 115 F ambient (down to -20 F with accessory Motormaster® V control)
- ComfortLink™ control includes: easy to use scrolling marquee display, service diagnostics, run test capabilities, demand limit
- capability, compressor reverse rotation protection, and BACnet communication option.
- Tested in accordance with UL Standard 1995 and listed by ETL and ETL, Canada
- Meet or exceed the EER requirements of ASHRAE Standard 90.1, rated in accordance with ARI Standard 340/360
- California Energy Commission Title 24 Compliant
Reliability Features
- Dual electrically and mechanically independent refrigerant circuits, with coil frost protection, liquid line filter driers, and crankcase
- heaters standard on all models
- Compressor protection includes high and low-pressure transducers with safety cutouts
- Circuit breaker protection for all power components
- Cabinet made of pre-painted, galvanized steel with baked enamel finish, which meets ASTM B117 salt spray resistance test
- Condenser-fan motors are totally enclosed with internal protection
- Direct spark ignition, Alumagard Coated Turbo-tubular heat exchangers, and induced draft combination provide for safety and
- reliability
- Reliable Integrated Gas Unit Controller (IGC) provides system evaluation & troubleshooting via onboard LED and two-stage gas
- valves with redundant 100% shutoff
Maintenance Features
- Large hinged service access doors
- Onboard diagnostics include refrigerant pressure sensors
- Double wall design available
Installation Features
- Shipped with R-410A refrigerant charge
- Single point electrical service entry, through unit bottom or side
- Lifting Lugs
- Factory-installed pivoting outside air hoods
Standard Limited Warranty
- 3 years parts only on Novation™ condenser coil
- 5 years parts only, non-pro-rated, on the heat exchanger
- One year parts only on all other parts
Factory-Installed Options
<ul>
<li>Low or high gas heat options include:
<ul>
<li>Aluminized steel heat exchanger</li>
<li>Stainless steel heat exchanger</li>
<li>Stainless steel heat exchanger with staged gas discharge air temperature control</li>
<li>Stainless steel heat exchanger with modulating gas discharge air temperature control</li>
</ul>
</li>
<li>Extended chassis for an auxiliary coil</li>
<li>Double wall construction</li>
<li>2-in. pleated filters with 4-in. field convertible filter rack</li>
<li>Bag or cartridge filters (sizes 030-070 only)</li>
<li>Outdoor air CFM station</li>
<li>Manual outside air self-closing damper</li>
<li>Modulating integrated economizer damper</li>
<li>Modulating integrated ultra-low leak economizer damper</li>
<li>Barometric relief</li>
<li>Non-modulating power exhaust (CV units only)</li>
<li>Modulating power exhaust with building pressure sensor</li>
<li>Alternate high-capacity evaporator coil (all sizes except 035)</li>
<li>High capacity power exhaust with VFD (sizes 075-100 only)</li>
<li>Return fan with VFD (sizes 075-100 only)</li>
<li>Condenser and evaporator options include:
<ul>
<li>All-aluminum Novation condenser and Al/Cu evaporator</li>
<li>E-coat all-aluminum Novation condenser and Al/Cu evaporator</li>
</ul>
</li>
<li>Hot gas bypass</li>
<li>Controls input expansion board</li>
<li>Bypass on indoor fan motor VFD</li>
<li>GFI (ground fault interrupter) convenience outlet (powered)</li>
<li>Power terminal block</li>
<li>Non-fused disconnect</li>
<li>Airfoil supply fan (sizes 075-100 only)</li>
<li>Low outdoor sound</li>
<li>Low ambient control</li>
<li>65 kA SCCR (460V) or 25 kA SCCR (575V)</li>
<li>Digital compressor</li>
<li>BACnet communication</li>
<li>Replaceable core filter drier</li>
<li>Security grille (sizes 070-100 only)</li>
<li>Humidi-MiZer™ adaptive dehumidification system</li>
</ul>
Field-Installed Accessories
<ul>
<li>Liquid propane (LP) conversion kit (sizes 030-070 only)</li>
<li>2-in. and 4-in. filter kits</li>
<li>CO2 space sensor</li>
<li>Outdoor or return humidity sensor (enthalpy)</li>
<li>Condenser coil hail guard assembly</li>
<li>Controls input expansion board</li>
<li>Navigator™ display</li>
<li>Return air CO2 sensor</li>
<li>Smoke detector</li>
<li>Filter switch</li>
<li>Fan status switch</li>
<li>T55 temperature sensor</li>
<li>T56 temperature sensor</li>
<li>Space temperature sensor with CO2 override</li>
<li>Space temperature sensor set point and CO2 override</li>
<li>BACnet Communication module</li>
<li>MODBUS Carrier translator</li>
<li>LonWorks Carrier translator</li>
<li>System Pilot™ interface</li>
<li>Touch Pilot™ interface</li>
<li>14-in. roof curb</li>
<li>Motormaster V control</li>
<li>Compressor sound blankets</li>
</ul>
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