Concord 4HP18V60P + 7EH48CX-0*+TDR Heat Pump System · AHRI 214730658

About this heat pump system

This page documents the split-system heat pump system made up of the Concord 4HP18V60P outdoor unit and the 7EH48CX-0*+TDR indoor unit, installed with furnace 97G2UH110CV20 — AHRI certificate 214730658.

As a matched system it is rated at 17.1 SEER2, 11.0 EER2 and 7.8 HSPF2, delivering 46,000 Btu/h of cooling (about 4 tons) and 46,000 Btu/h of heating at 47 °F. At 5 °F it still produces 26,800 Btu/h — 58% of its 47 °F output with a COP of 1.80.

Its inverter-driven, continuously variable compressor ramps capacity up and down to match the load, which gives steadier temperatures, better dehumidification and the highest part-load efficiency.

Specifications

How it compares with other 4HP18V60P matches

The 4HP18V60P has 20 certified matches. This one's 17.1 SEER2 is higher than 16 of them (84%). The matches with the closest efficiency are listed below.

Back to the Concord 4HP18V60P guide

Safety information

• Installation, refrigerant charging and electrical connection must be performed by a licensed HVAC contractor in accordance with local codes and the manufacturer's installation instructions. Many jurisdictions require a permit and inspection.
• Turn off power at the outdoor disconnect and at the main panel before opening any service panel. Capacitors can hold a dangerous charge after power is removed.
• Keep children and pets away from the outdoor unit; never insert objects through the fan guard.
• Do not operate the system with panels or the fan guard removed.
• If a gas furnace provides backup heat, make sure carbon monoxide alarms are installed on every level of the home and near sleeping areas.

Installation and sizing

Proper installation matters more than any rating on the label: field studies show that incorrect charge, poor airflow and leaky ducts can cut real-world efficiency by 30% or more. Use the checklist below when reviewing quotes for the Concord 4HP18V60P.

1. Load calculation

   Insist on a room-by-room heat-loss and heat-gain calculation (ACCA Manual J) before choosing a size. Oversized heat pumps short-cycle, dehumidify poorly and wear out sooner; rule-of-thumb sizing by square footage is unreliable.

2. Verify the matched system

   Confirm the outdoor unit, indoor coil or air handler (and furnace, if any) match an AHRI certificate. Mismatched components can lower efficiency well below the published ratings and may void rebates.

3. Outdoor unit placement

   Set the condenser on a level pad raised above expected snow depth, with at least 12–24 in. of clearance around the coil and 5 ft above the fan. Avoid spots under roof drip lines where ice can fall onto the unit.

4. Ductwork and airflow

   Have the contractor measure static pressure and set blower airflow (typically 350–450 CFM per ton). Leaky or undersized ducts are the most common reason a new system underperforms.

5. Line set and charge

   The refrigerant line set should be pressure-tested, evacuated to 500 microns or lower and charged by weight and verified by subcooling or superheat as the manufacturer specifies.

6. Commissioning

   Ask for a commissioning report showing airflow, refrigerant charge readings, thermostat configuration (including auxiliary-heat lockout) and a test of defrost operation.

Using your heat pump

Thermostat settings

Pick a comfortable setpoint and leave it. Heat pumps are most efficient when they hold a steady temperature; deep night setbacks in heating mode can trigger expensive auxiliary (strip) heat during recovery. If you use setbacks, limit them to 2–3 °F or use a thermostat with adaptive recovery designed for heat pumps.

Heating mode and defrost

In cold, damp weather frost builds up on the outdoor coil. The unit periodically reverses into a defrost cycle for a few minutes — you may see steam rising from the outdoor unit and hear a whoosh when the reversing valve shifts. This is normal.

Heating output drops as outdoor temperature falls. Below the system's balance point a backup heat source (electric strips or a furnace) supplements the heat pump; your installer should set the thermostat so backup heat runs only when needed.

Cooling and dehumidification

In cooling mode the inverter compressor runs for long periods at low speed, which removes humidity steadily. Long run times are normal and efficient — they are not a sign of a problem.

Care and maintenance

Troubleshooting

Energy use and running costs

Assuming 1,000 full-load cooling hours per year (typical of a moderate U.S. climate), this system would use roughly 2,690 kWh for cooling — about $457 at $0.17/kWh.

For heating, 1,500 full-load hours at 7.8 HSPF2 works out to about 8,846 kWh, or $1,504 per year, excluding any auxiliary heat. The same heat from an 80% AFUE gas furnace would cost about $1,294 at $1.50/therm.

Your actual cost depends on climate, home insulation, thermostat habits and local utility rates. Use these figures to compare models rather than as a bill forecast.

Frequently asked questions

Sources and disclaimer

Specifications on this page come from the ENERGY STAR certified heat pumps dataset published by the U.S. Environmental Protection Agency (record certified June 1, 2026), retrieved October 7, 2026. The AHRI reference number identifies the certified combination; verify it in the AHRI Directory of Certified Product Performance before purchase.

The setup, operating, maintenance and troubleshooting guidance is written by ManualHarbor's editors for this specific product type and configuration. It is an independent guide — not a reproduction of the manufacturer's manual — and ManualHarbor is not affiliated with Concord. Always follow the safety instructions, installation requirements and warranty terms supplied with your unit, and contact Concord or an authorized service provider for warranty repairs and replacement parts.

Running-cost figures use assumed U.S. average utility prices and are estimates for comparison only. See our editorial methodology for details.