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Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit service and support

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Carrier Residential Heat Pump - 25VNA8 Heat Pump Repair, maintenance, and replacement planning
Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit product image

Product service snapshot

Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit service details

Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit is a Carrier® heat pump record from the Carrier Enterprise catalog. Catalog model: 25VNA848A003. Product family: 25VNA8. 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® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit
  • Equipment type: Heat Pump
  • Product group: Residential Heat Pump - 25VNA8

Technical snapshot

Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit technical snapshot

Product Specs

  • Model: 25VNA848A003
  • Manufacturer Number: 25VNA848A003
  • Vendor Number: 25VNA848A003
  • Catalog Brand: Carrier®
  • Product Family: 25VNA8
  • AHRI Usage: Outdoor
  • Approvals: UL Listed; UL Recognized
  • Brand: Carrier®
  • CFM: 4,500
  • COP: 3.22-3.58
  • Color: Gray
  • Compressor Type: Rotary
  • Condenser Coil Fins Per Inch (FPI): 20
  • Condenser Fan Blade Diameter: 24
  • Condenser Fan CFM: 4500
  • Condenser Fan Discharge: Vertical
  • Condenser Fan Motor Qty: 1
  • Condenser Motor HP: 1/3
  • Condenser Motor RPM: 300
  • Condenser Motor Speeds: Variable
  • Condenser Motor Type: PSC (Permanent Split Capacitor)
  • Cooling Capacity: 44,000-46,000
  • Cooling Rated Capacity Btu/h: 48000
  • Country Of Origin: USA
  • Cubic Measurement: 22.3746
  • Cycle/Hertz: 60 Hz
  • Dimensional Weight: 361
  • EER: 9.5-12
  • Energy Star Rated: NO
  • Full Load Amps: 1.32
  • HSPF: 8.2-11
  • Heating Capacity: 50,000
  • Height: 39.75
  • Inverter: YES
  • Length: 31.1875
  • Liquid Line Fitting Type: Sweat or Braze
  • Liquid Line Size (OD): 3/8"
  • Locked Rotor Amps (LRA): 42
  • Maximum Overcurrent Protection (MOCP): 50
  • Maximum Piping Length: 100'
  • Metering Device: TXV/TEV - Thermostatic Expansion Valve
  • OPT Code: 1P25VNA848A003
  • Phase: Single
  • Prop 65: YES
  • Rated Load Amps (RLA): 23.9
  • Refrigerant: R-410A
  • SEER: 18
  • Sound Level (dBA): 73
  • Stages Cooling: Variable
  • Stages Heating: Variable
  • Suction Line Fitting Type: Sweat or Braze
  • Suction Line Size (OD): 1 1/8"
  • Tier: Infinity™
  • Tonnage: 4
  • UOM: EA
  • UPC: See Optical
  • Voltage: 208-230 VAC
  • Weight: 218
  • Width: 31.1875

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® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit requests

1

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.

2

Describe the service issue

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

3

Review access and history

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

4

Plan the next step

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

Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit service questions

Can GreenFlow help with Carrier Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit service requests?

Yes. GreenFlow can help collect the right details for Carrier Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit service requests, including the model, symptoms, equipment age, building type, access notes, photos, and timing.

What symptoms should I mention for Carrier® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit?

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® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit 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® Infinity® - 4 Ton 18 SEER Residential Variable Speed Heat Pump Condensing Unit 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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David H.

Quick response and on time arrival Diagnosed the problem ordered the part and fixed.

Connie F.

I needed a thermostat installed. I called one day they were there the next day. Installed the thermostat and made sure it was working before they left. Came back the next day because no heat was coming out the vents and fixed that issue. No problems since. Thanks...

Hyun L.

They are very professional and reliable.

Lesley S.

We were very happy with our experience with Green Flow Solution. After our hot water heater was leaking and needed to be replaced, they were able to install a new one the same day. They were professional and thorough. Thank you!

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

Howard H.

Great experience. Knowledgeable and very fair. Highly recommend

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