WeatherMaster® Applied Rooftop Units 50V

WeatherMaster® 50V Applied Rooftop Unit

Technical Specifications

At a glance

Type

Electric Heat/Hydronic Heat/Electric Cooling

Refrigerant

R-454B

Capacity Range

27.5 - 100 Tons

Efficiency (EER/IEER)

10.5, 16.6

Features

Standard Features
 

Compact Chassis (fits select competitor curbs, shortest chassis) 

Standard Chassis (fits select Carrier P/Z series curbs, highest filtration and fan static capability)

Low global warming potential (GWP) Puron Advance™ refrigerant (R454B) 

Refrigerant leak detection system with dissipation control 

Standard capacity variable speed scroll compressor 

Electronic expansion valves (EXV) metering devices ensure reliable performance across a wide operating envelope. 

Single refrigerant circuit with fully active Al/Cu evaporator coil on 27.5-40 tons 

Dual refrigerant circuit with intertwined Al/Cu evaporator coil on 50-100 tons 

Variable speed condenser fans with Greenspeed intelligence allow for optimized part load performance and allow mechanical cooling down to -10°F (-23.3°C) under appropriate conditions. 

Galvanized steel condensate drain pan 

Large MCHX condenser coils for reduced refrigerant charge and efficient operation 

Direct drive indoor fan array with standard, medium or high static electronically commutated motors (ECM) 

Multiple indoor fan control methods, including SAV, CV, SZ-VAV, multi-zone VAV duct pressure, or 3rd party input 

Multiple pre filter options to help with indoor air quality 

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

Carrier SmartVu™ controls with 7” touchscreen display 

10kA short circuit current rating (SCCR) 

Meets or exceed the EER & IEER requirements of ASHRAE Standard 90.1, DOE 2023, and certified (sizes 28-70) or rated in accordance (sizes 74-98) with AHRI Standard 340/360 (sizes 28-70) 

UL listed for compliance with UL Standard 60335-2-40

 

Reliability Features
 

Units tested in Carrier and third-party labs to verify performance and efficiency. 

SmartVu™ controller monitors, records, and reports unit performance. Also provides diagnostics and alarms of abnormal unit operation. 

Integrated variable speed compressor protection 

Liquid line filter driers and crankcase heaters standard on all models 

Refrigerant system performance monitoring 

Cabinet made of pre-painted, galvanized steel, which meets ASTM B117 salt spray resistance test 

Condenser-fan motors are totally enclosed 

 

Maintenance Features
 

Hinged access doors with latches to access maintainable components, such as pre-filters, electric/hydronic heat, and controls. 

Components, such as electronic expansion valves (EXVs) and condenser fans, are accessible through large access panels for service 

SmartVu™ diagnostics include refrigerant pressure sensors and maintenance reminders 

Condensing and suction pressure sensors to monitor the refrigerant circuit 

Fan shutoff interlock on indoor fan access panel to prevent injury to service personnel if the door opens while the fans are running

 

Installation Features
 

SmartVu™ controls are factory installed and configured to match unit configuration to help reduce setup time. 

Shipped with R-454B refrigerant charge 

Factory installed A2L leak detection and mitigation reduces installation and commissioning time 

Heavy duty base rail with lifting lugs for easy rigging 

Single-point electrical connection

Provisions for thru-the-bottom power and control wiring 

Factory-installed outside air hoods

 

Standard Limited Warranty
 

3-years parts only on microchannel condenser coil 

5-year parts on ultra-low leak economizer 

One year parts on all other non-consumable parts

Options

Factory-Installed Options
 
 
Electric Heat
 

Low, medium or high electric heat with two-stage control 

Low, medium or high electric heat with modulating silicon rectifier (SCR) control

 

Refrigerant Circuit
 

High capacity variable speed scroll compressor 

Low sound package includes shrouded, low sound condenser fans, low RPM motors, and sound blankets 

High efficiency, low sound package for reduced radiant sound during mechanical cooling operation and improved cooling efficiency with up to 21.2 IEER 

Humidi-MiZer® adaptive dehumidification system with modulating control

 

Construction
 

Standard or compact chassis 

Extended standard chassis

Plenum section

 

Controls
 

Humidity and enthalpy sensing (OARH & RARH) for dehumidification or free cooling control 

Return air CO2 sensor for ventilation control 

Outdoor airflow measuring

 

Condenser & Evaporator Coils
 

E-Coat MCHX Condenser 

E-Coat Al/Cu Evaporator 

Stainless steel drain pan 

Louvered hail guard (sizes 28-60) 

Security grille (sizes 70-100)

 

Outdoor Air & Relief
 

Ultra-low leak economizer for ventilation and free cooling 

Barometric relief 

Standard, low and medium static power exhaust fan 

Modulating building pressure control

 

Service & Safety
 

Condensate overflow switch 

Pre-filter status switch with access door retainers 

Service pack with compressor isolation valves, replaceable core filter drier 

Return air smoke detector 

Chicago refrigerant relief valve

 

Electrical
 

Non-fused disconnect 

Powered or un-powered convenience outlet 

Phase monitor 

High short circuit current rating (65kA for 208/230/460V, 25kA for 575V)

 

Indoor Air Quality
 

2” pre-evaporator filter rack with 2” MERV 8 filters 

4” pre-evaporator filter rack with 4” MERV 8 or 13 filters 

2” MERV 8 + 4” MERV 13 pre-evaporator filters 

2” MERV 8 + 12” MERV 14 bag pre-evaporator filters 

2” MERV 8 + 12” MERV 15 cartridge pre-evaporator filters 

Factory-installed UV-C fixtures with wiring, disconnect switch, door interlocks, and access door with UV safe view port

 

Field-Installed Accessories

 

Indoor Air Quality
 

Return air CO2 sensor 

CO2 space sensor 

CO2 aspirator box 

UV-C emitters

 

Controls
 

Return air CO2 sensor 

Smoke detector 

Dirty filter switch 

Non-communicating space sensors, including temperature and humidity 

Communicating space sensors, including temperature and humidity 

Space CO2 sensors 

Carrier i-Vu Equipment Touch display 

Thermostats

 

Miscellaneous Options
 

14-inch roof curb 

Compressor sound blankets 

Actuated hot water valves

Documents

Accessory and Kit Data

Compressor Sound Blanket Accessory for 48/50V

Louvered Hail Guard Accessory for 48/50V 27-60 Ton Units

Curb Centering Kit for Compact Chassis 48/50V 28-50, 27.5-50 Ton

RNET Harness Accessory for 48/50K 20-60 Tons and 48/50V 27.5-100 Tons, P/N CRRNETPH001A00

Ultraviolet Lamp Accessory for 48/50K, 48/50V

Accessory Roof Curbs for 48/50V Package Rooftop Units

Brochure

Light Commercial and Applied Packaged Rooftop Unit Line Card

Humidi-MiZer® Adaptive Dehumidification System

Staged Air Volume (SAV) System for Carrier’s Applied Packaged Rooftop Units

Controls

SmartVu™ Controls Version 2.X for Light Commercial and Applied Rooftop Gas Heat/Electric Cooling and Electric Heat/Electric Cooling Units with PIC 6.0 Hardware, Integration Guide

SmartVu™ Controls Version 2.7 for Applied Rooftop Gas Heat/Electric Cooling and Electric Heat/Electric Cooling Units with PIC 6.1 Hardware

Guide Specifications

50V Guide Specifications, 27.5 to 35 Nominal Tons

50V Guide Specifications, 27.5 to 100 Nominal Tons

Installation

WeatherMaster® 50V 28-98 Electric Cooling with Optional Heating Applied Rooftop Units with Puron Advance Refrigerant (R-454B) and Carrier SmartVu™ Controls

Product Data

48/50V 27-35 WeatherMaster® Applied Rooftop Units 27.5 to 35 Nominal Tons (R-410A)

48/50V 28-98 WeatherMaster® Applied Rooftop Units 27.5 to 100 Nominal Tons (R-454B)

REVIT and 3D DRW Files

50V No Heat or Electric Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis, Family REVIT Files

50V No Heat or Electric Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Extended Section, Family REVIT Files

50V No Heat or Electric Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Plenum Section, Family REVIT Files

50V No Heat or Electric Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Extended Section and Plenum Section, Family REVIT Files

50V No Heat or Electric Heat Applied Rooftop Units, Sizes 27-35, Compact Chassis, Family REVIT Files

50V Hydronic Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis, Family REVIT Files

50V Hydronic Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Extended Section, Family REVIT Files

50V Hydronic Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Plenum Section, Family REVIT Files

50V Hydronic Heat Applied Rooftop Units, Sizes 27-35, Standard Chassis with Extended Section and Plenum Section, Family REVIT Files

50V Hydronic Heat Applied Rooftop Units, Sizes 27-35, Compact Chassis, Family REVIT Files

48/50V Family REVIT Files

50V RTU Extended Standard Chassis, 54-60T Family REVIT Files

50V RTU Extended Standard Chassis,70T Family REVIT Files

50V RTU Extended Standard Chassis, 75T Family REVIT Files

50V RTU Extended Standard Chassis, Plenum 54-60T Family REVIT Files

50V RTU Extended Standard Chassis, Plenum, 70T Family REVIT Files

50V RTU Standard Chassis, 54-60T Family REVIT Files

50V RTU Standard Chassis, 70T Family REVIT Files

50V RTU Standard Chassis, 75T Family REVIT Files

50V RTU Standard Chassis, Plenum, 54-60T Family REVIT Files

50V RTU Standard Chassis, Plenum, 70T Family REVIT Files

50V RTU Standard Chassis, 27-35T, All Heat/No Heat, Plenum REVIT Files

50V RTU Standard Chassis, Extended Section, 27-35T, All Heat/No Heat REVIT Files

50V RTU Standard Chassis, Extended Section, 27-35T, All Heat/No Heat, Plenum REVIT Files

50V RTU Standard Chassis, 27-35T, All Heat/No Heat REVIT Files

50V RTU Compact Chassis, 27-35T, All Heat/No Heat REVIT Files

50V RTU Standard/Extended Chassis, 90-100T, Hydronic REVIT Files

50V RTU Standard Chassis, 27-35T, Hydronic, Plenum REVIT Files

50V RTU Standard Chassis/Extended Section, 27-35T, Hydronic REVIT Files

50V RTU Standard Chassis/Extended Section, 27-35T, Hydronic, Plenum REVIT Files

50V RTU Standard Chassis, 90-100T, Hydronic REVIT Files

50V RTU Standard Chassis, 27-35T, Hydronic REVIT Files

50V RTU Compact Chassis, 27-35T, Hydronic REVIT Files

Warranty Card

Limited Warranty - 50K and 50V Commercial Rooftop Equipment

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