48WE Packaged Rooftop

WeatherExpert® 48WE Single-Packaged Rooftop Unit

Technical Specifications

At a glance

Type

Gas Heat/Electric Cooling

Refrigerant

R-454B

Capacity Range

6 - 15 Tons

Efficiency (SEER/IEER)

20.5

Features

Performance Features
 

Puron Advance (R-454B) refrigerant meets and exceeds EPA’s new Low GWP requirements

New – UL 60335-2-40 Certified A2L leak detection and dissipation system factory installed standard 

Direct Drive EcoBlue™ Technology indoor fan system uses Vane Axial fan design & electronically commutated motor 

Three-stage cooling capacity control on all models 

Large face area hot gas reheat (HGRH) coil with modulating control valve for dehumidification operation 

Modulating heat operation with standard 5:1 turndown (natural gas) control 

IEER’s up to 20.5, EER’s up to 13.1 

Gas efficiencies up to 81% 

Cooling operating range up to 125 °F (52°C) and down to 40°F (4°C) 

Innovative corrosive-resistant composite condensate pan in accordance with ASHRAE 62 Standard 

Exclusive IGC solid-state control for on-board diagnostics with LED error code designation and burner control logic 

Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection 

Carrier SmartVu controls with 7” touchscreen display 

Single zone, multi-zone, 100% outdoor air, or multistage heat/cool thermostat operating modes 

Units meet ASHRAE 90.1 energy efficiency levels.

 

Maintenance Features
 

Condensate overflow switch 

Hinged access panels with easy grip handles 

Innovative, easy starting, no-strip screw feature on unit access panels 

Two-inch disposable return air filters 

Tool-less filter access door 

New Vane Axial evaporator-fan system has no fan belts, pullies, blower shaft and blower bearings with slide out design

 

Installation Features
 

Provisions for thru-the-bottom power entry capability as standard 

Single point gas and electric connections 

Full perimeter base rail with built-in rigging adapters and fork truck slots

 

Reliability Features
 

A2L leak detection and dissipation system standard 

SmartVu™ controls with system monitoring and alarming 

Proven tandem scroll compressor design with internal line-overload protection 

24-volt control circuit protected with resettable circuit breaker 

Direct drive supply fan 

Totally enclosed condenser motors with permanently lubricated bearings 

Low and high refrigerant pressure sensors 

Solid-state electronic direct spark ignition system 

Flame roll-out safety protector 

Liquid line filter drier 

Cooling and dehumidification lockouts based on outdoor air or entering coil air temperatures

 

Standard Limited Warranty
 

15-year heat exchanger – stainless steel 

5-year compressor parts 

3-year parts SmartVu™ Controller 

1-year parts 

Additional extended warranty packages available

Options

Factory-Installed Options
 

High turndown (10:1) natural gas heat 

Return air CO2 sensor 

Return and/or supply air smoke detector 

High static supply fan motor 

Variable speed supply fan control based on duct static or space static pressure 

Corrosion resistant options for evaporator and condenser coils 

Ultra-low leak Integrated economizer system 

Powered or un-powered convenience outlet 

4” filter track with 4” MERV 13 filters 

Non fused disconnect switch or HACR circuit breaker 

Double wall construction 

Knockdown roof curbs 

Field installed economizers 

Space temperature, humidity, and CO2  sensors 

Thermostats

Physical Data

Nominal Cooling Ton SizeCooling StagesAHRI Efficiency (IEER)Dimensions (in)
LxWxH
Gas Heating Input Range
(Btuh)
Approx. Unit Weight
(lbs)
6320.588x59x4914-1401059
7.5320.5116x63x5716-1601516
10320.2116x63x5724-2001596
15318.8141x86x5730-3002120

AHRI = Air-Conditioning, Heating & Refrigeration Institute
ASHRAE = American Society of Heating, Refrigerating and Air Conditioning, Inc.
IEER = Integrated Energy Efficiency Ratio

NOTES

  1. Rated and certified under ARI Standard 340/360
  2. Cooling Standard: 80°F (27°C) db, 67°F (19°C) wb indoor air temp and 95°F (35°C) db outdoor air temp.
  3. 48WE units generally comply with ASHRAE 90.1-2010 Energy Standard. Please review size specific data for compliance.
  4. 48WE units comply with US Energy Policy Act (2005).

Documents

Accessory and Kit Data

CRBTMPWR003A01 and CRBTMPWR004A01 Small Rooftop Units Thru-the-Bottom Service Connection Gas Heating Electric Cooling 3 to 12-1/2 Tons

Brochure

K-12 Vertical - Carrier Rooftop Systems

Controls

SmartVu™ Controls Version 2.X for Light Commercial Rooftop Gas Heat/Electric Cooling and Electric Heat/Electric Cooling Units with PIC 6.1 Hardware, Integration Guide

48WE*H17 WeatherExpert® Gas Heat/Electric Cooling Packaged High Outdoor Air System with Puron Advance™ (R-454B) Refrigerant

Installation

48WE*H07-12 WeatherExpert® Gas Heat/Electric Cooling Packaged High Outdoor Air System with Puron Advance™ (R-454B) Refrigerant

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