Heat Pump

Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service and support

Carrier Residential Heat Pump - 50NR Heat Pump Repair, maintenance, and replacement planning

Product service snapshot

Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service details

Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B is a Carrier® heat pump record from the Carrier Enterprise catalog. Catalog model: 50NR-B36---3. Product family: 50NR. Green Flow Solution uses this page for residential model identification, service planning, maintenance conversations, repair diagnostics, and replacement matching.

Brand: Carrier
Model or series: Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B
Equipment type: Heat Pump
Product group: Residential Heat Pump - 50NR

Technical snapshot

Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B technical snapshot

Product Specs

Model: 50NR-B36---3
Manufacturer Number: 50NR-B36---3
Vendor Number: 50NR-B36---3
Catalog Brand: Carrier®
Product Family: 50NR
AHRI Usage: Packaged
Air Flow Direction: Convertible
Approvals: UL Listed
Blower Motor HP: 3/4
Blower Motor RPM: 1,000
Blower Motor Speeds: Multiple
Blower Motor Type: ECM (Electronically Commutated Motor)
Blower Wheel Diameter: 11"
Blower Wheel Width: 10"
Brand: Carrier®
CFM: 239-1,200
CFM Heating: 1,200
COP: 2.3-3.4
Color: Gray
Compressor Type: Scroll
Condenser Coil Fins Per Inch (FPI): 21
Condenser Coil Metering Device: TXV/TEV - Thermostatic Expansion Valve
Condenser Fan Blade Diameter: 26
Condenser Fan CFM: 3800
Condenser Fan Motor Qty: 1
Condenser Motor HP: 1/5
Condenser Motor RPM: 810
Condenser Motor Speeds: 1
Condenser Motor Type: PSC (Permanent Split Capacitor)
Cooling Capacity: 36,000
Country Of Origin: MEX
Cycle/Hertz: 60 Hz
Drain Connection Size: 3/4"
Drive Type: Direct
EER2: 11.5
Energy Star Rated: YES
Evaporator Coil Fins Per Inch (FPI): 17
Evaporator Coil Metering Device: TXV/TEV - Thermostatic Expansion Valve
HSPF2: 7.2
Heating Capacity: 19,600-34,400
Height: 44.7
Length: 44.1
Locked Rotor Amps (LRA): 90
Maximum Overcurrent Protection (MOCP): 35
OPT Code: 1P50NR-B36---3
Phase: Single
Prop 65: YES
Refrigerant: R-454B
Return Air Filter Size (RA) In Inches (W X H X D): (1) 14 x 24 x 1; (1) 16 x 24 x 1
SEER2: 15.2
Sound Level (dBA): 73
Stages Cooling: 2
Stages Heating: 2
Tier: Performance™
Tonnage: 3
UPC: See Optical
Voltage: 208-230 VAC
Weight: 420
Width: 48.1

Useful troubleshooting details

Confirm the exact model number, serial number, installed equipment type, and site voltage before service or replacement planning.
Match replacement equipment and accessories against current Carrier compatibility requirements, refrigerant type, capacity, airflow, and local code requirements.

Service planning

How GreenFlow handles Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B requests

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service questions

Can GreenFlow help with Carrier Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service requests?

Yes. GreenFlow can help collect the right details for Carrier Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service requests, including the model, symptoms, equipment age, building type, access notes, photos, and timing.

What symptoms should I mention for Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B?

Helpful symptoms include no heat, no cooling, weak airflow, defrost or outdoor icing concerns, auxiliary heat behavior, thermostat issues, short cycling, unusual noise, and whether the request is urgent or planned maintenance.

Is Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B used for residential or commercial properties?

Heat pump requests may come from homes, condos, multifamily properties, managed buildings, and light-commercial spaces depending on the system type and building layout.

What helps schedule Carrier® - 3 Ton Residential Packaged Two Stage Heat Pump Unit R-454B service faster?

Share the exact model and serial number if available, clear photos of the equipment and surrounding access area, current symptoms, recent maintenance history, and whether the request is repair, maintenance, or replacement planning.

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Our Happy Customers

Daniel M.

Responsive company, timely installation professionally done. Hannah is great!

William Z.

Quick service

Paula G.

Excellent professionals and price. Really recommend them!

Nicholas M.

I called Green Flow Solutions in a hurry to diagnose and fix an AC unit in a commercial condo unit. They responded quickly, arrived urgently and performed an excellent job on the repair needed. Communication 10/10, professionalism 10/10 and quality 10/10. I will be recommending Green Flow Solutions...

Gilberto C.

Great service. It was awesome that they were able to solve my heating issue in few hours. Love the transparency on the pricing. Andrey was great!

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Andrey was great. Very timely and fixed our HVAC easily. Would love to have him again