Carrier Weathermaker – 48A Commercial Rooftop Units

  • 48A2 – CV/SAV, Vertical
  • 48A3 – VAV, Vertical
  • 48A4 – CV/SAV, Horizontal
  • 48A5 – VAV, Horizontal
    Carrier A Series Rooftop products are pre-wired and charged with refrigerant and tested in both cooling and heating modes at the factory. All models feature an industrial grade cabinet with fully hinged access panels. Superior supply fan performance with up to 3.5 in. external static pressure is standard.
    Units are available in Constant Volume (CV), Staged Air Volume (SAV), or Variable Air Volume (VAV) applications. A wide variety of gas options are available. Units come standard with ComfortLink™ control and Scroll compressors on dual independent TXV controlled refrigeration circuits.
  • 20 to 60 Nominal Tons

Performance Features

  • High-efficiency scroll compressors (digital compressor available)
  • Two-stage cooling on Constant Volume and Staged Air Volume units, with multiple adaptive demand control for up to 5 stages of cooling capacity
  • Cooling operation range up to 120° F ambient and down to 35° F ambient
  • 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.
  • California Energy Commission Title 24 Compliant
  • Meet or exceed the EER requirements of ASHRAE Standard 90.1, rated in accordance with ARI Standard 340/360
  • Tested in accordance with UL Standard 1995 and listed by ETL and ETL, Canada

Maintenance Features

  • Large hinged service access doors
  • On-board diagnostics include refrigerant pressure sensors
  • Double wall design available

Installation Features

  • Shipped with R-410A refrigerant charge
  • Single point electrical service entry, thru unit bottom or side
  • Lifting lugs

Reliability Features

  • Dual electrically and mechanically independent refrigeration 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
  • 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 on-board LED and two stage gas valves with redundant 100% shutoff

Standard Limited Warranty

  • One year parts only on all other parts
  • 3-years parts only on Novation™ condenser coil
  • 5-years non pro-rated warranty on heat exchanger
Carrier Weathermaker – 48A Commercial Rooftop Units was last modified: August 3rd, 2023 by HVAC Expert

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Factory-Installed Options

  • Gas Heat Options
    • Low gas heat – aluminized
    • High gas heat – aluminized
    • Low gas heat – stainless steel
    • High gas heat – stainless steel
    • Multi-Staged gas heat – low – stainless steel
    • Multi-Staged gas heat – high – stainless steel
  • Indoor Air Quality
    • 2-inch filters
    • 4-inch filters
    • Return air CO2 sensor
  • Economizer
    • Manual outside air self-closing damper
    • Modulating integrated ultra-low leak economizer
  • Exhaust Air Control
    • Barometric relief (vertical units only)
    • Non-modulating power exhaust (CV/SAV vertical units only)
    • Modulating power exhaust and static sensor (vertical units only)
  • Condenser and Evaporator Coils
    • Al/Cu condenser & evaporator
    • Al/Cu Pre-coat condenser & Al/Cu evaporator
    • Al/Cu E-coat condenser & Al/Cu evaporator
    • Cu/Cu condenser & Al/Cu evaporator
    • All-aluminum Novation condenser and Al/Cu evaporator
    • E-coat all-aluminum Novation condenser and Al/Cu evaporator
    • Digital Compressor
    • Hot gas bypass
    • Galvanized drain pan
    • Stainless drain pan
  • Controls
    • Controls option board
    • Return air CO2 sensor
    • Return air smoke detector
    • Filter switch
    • BACnet communication
  • Power Circuit
    • GFI convenience outlet (powered)
    • GFI convenience outlet (not powered)
    • Power terminal block
    • Non-fused disconnect
  • Indoor Motor Options
    • Low HP, high efficiency
    • Medium HP, high efficiency
    • High HP, high efficiency

Field-Installed Accessories

  • Gas Heat Options
    • LP conversion kit
  • Indoor Air Quality
    • Return air CO2 sensor
    • CO2 space sensor
    • CO2 aspirator box
  • Economizer
    • Outdoor or return humidity sensor (enthalpy)
    • Exhaust Air Control
    • Barometric relief
    • Non-modulating power exhaust
    • Modulating power exhaust and static sensor
    • High capacity modulating power exhaust and static sensor
    • Supply and building pressure control board
    • Build pressure control sensor
  • Condenser and Evaporator Coils
    • Condenser coil hail guard assembly
  • Controls
    • Controls option board
    • Enhanced display
    • Navigator™ display
    • Return air CO2 sensor
    • Smoke detector
    • Filter switch
    • Fan status switch (requires options board)
    • T55 temperature sensor
    • T56 temperature sensor
    • T58 temperature sensor
    • Space temperature sensor with CO2 override
    • Space temperature sensor setpoint and CO2 override
    • Remote enhanced display
    • Thermostats (Debonair®)
    • Thermostats (Slimline)
    • Thermostats (Corporate)
    • BACnet Communication module
    • MODBUS Carrier translator
    • LonWorks Carrier translator
  • Miscellaneous Options
    • Roof curb adapter kit
    • 14-inch roof curb
    • Low ambient control (Motormaster® V )

Data

Size Nominal Capacity (Tons) Standard Airflow (Cfm) Gross Cooling (Btuh) Heating Capacity (Btuh) Weight* (lbs) Dimensions* (ft-in)
Low High Length Width Height
020 20 8000 255000 283500 425250 3825 13′-9″ 7′-10″ 6′-1-1/8″
025 25 10000 300000 283500 425250 3961 13′-9″ 7′-10″ 6′-1-1/8″
027 27 11000 314700 283500 425250 3961 13′-9″ 7′-10″ 6′-1-1/8″
030 30 12000 343800 283500 425250 3992 13′-9″ 7′-10″ 6′-1-1/8″
035 35 14000 410000 283500 648500 4340 13′-9″ 7′-10″ 6′-1-1/8″
040 40 16000 484700 324000 648500 4770 17′-11″ 7′-10″ 6′-1-1/8″
050 50 20000 589900 324000 648500 4914 17′-11″ 7′-10″ 6′-1-1/8″
060 60 24000 689000 628560 931200 7066 25′-11″ 7′-10″ 6′-1-1/8″

People like you shared their purchase and installation experience!

Jonathan ChanJonathan Chan

This company has excellent products and even better service, and it shows through client interaction. They care about their customers and complete their work in a timely fashion. Best of all they leave the work area in cleaner condition than when they arrived.

Their showroom has items you can't even imagine.

I have used Cozy Comfort Plus many times, personally purchased the following from them:
-Furnace
-A/C unit
-Air cleaner and purifier
-Tankless water heater
-Fireplaces (Mantles)
-Fire table and
-BBQ

Brian and his team are my go to.

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Richard G.Richard G.

When my furnace broke down last winter, we were without heat for two weeks while the HVAC company sourced the parts from the US. I wanted to install a gas fireplace insert to replace my existing gas log set and to act as a backup heat source (e.g. furnace breaks down again, no power). I had a number of questions about the various gas fireplace inserts (e.g. size and fit in my old fireplace) and I contacted several HVAC companies.

I found that Brian from Cozy Comfort Plus to be the most helpful and he also gave me the best price. I was home at the time and I saw that the Cozy team did a great job installing the gas fireplace insert (e.g., assembling and fitting the insert, bending and capping the chimney, etc.). If you are looking for a gas fireplace insert, I would highly recommend that you give Brian a call.

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Jon ConwayJon Conway

We are so happy with the service, support and product that we received from Cozy Comfort Plus. Brian was incredible to work with, he took the time to understand what we were looking for and helped us with the designs and what the best fireplace for us might be. He is extremely easy to work with, very easy to communicate with and so fast and responsive!

Everything happened exactly on schedule and as planned. It was a well oiled machine!! The crews that were here to build everything were super friendly, kind, courteous and knowledgeable.

Highly highly recommend to all 😀👍

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