For architects and millwork

Panthaire APEX on the drawing set

A factory-charged, fully ducted unit. The drawing set requires a conditioned mechanical space, insulated supply and return, a dedicated 115V circuit, and a sloped condensate drain. DWG and Revit files are in preparation. The PDF dimensions and the ductwork guide are the current source.

By

Licensed HVAC · Wine Cellar Cooling Specialists

Reviewed · September 1, 2026

Panthaire APEX is a factory-charged, fully ducted, self-contained wine cellar cooling unit. On a drawing set it requires a conditioned mechanical space held at 50–77°F (10–25°C), insulated supply and return ducts of 25 ft maximum per run (8 in supply and return; 10 in return on APEX 7000), a dedicated 115V/60Hz circuit (15A for APEX 3500 and 5000, 20A for APEX 7000), and a sloped condensate drain to an approved receptor. Only supply and return grilles appear in the cellar. No refrigerant work is performed on site.

On the job

Takeaways

  1. 01Start with the current Panthaire APEX cut sheets in Documentation.
  2. 02Ducted self-contained means a factory charge. No on-site refrigerant work on the loop.
  3. 03Plan a conditioned mechanical room, a dedicated circuit, and a sloped condensate drain.
  4. 04The CSI-style paragraph below is written for Division 23.
  5. 05Bid-day quotes are available to approved Pro accounts.

Wine cellar cooling clearances, ducts, electrical, and condensate for the bid set

  1. 01Dedicated 115V/60Hz circuit. 15A for APEX 3500 and 5000. 20A for APEX 7000.
  2. 02The circuit is not shared with lighting or a wine refrigerator.
  3. 03Sloped condensate line to an approved receptor. No trapped low points. 5/8 in drain connection.
  4. 04Insulated supply and return, 25 ft maximum per run. Short, straight runs outperform long flex.
  5. 05Unit in a space held at 50–77°F (10–25°C) year-round, with published clearances.
  6. 06Licensed HVAC installation in the notes. DIY installation voids the warranty.

Specifications

Panthaire APEX specifications

ModelCooling capacityCellar volume (R-20 envelope)CircuitSupply and return ductsAirflow (low/high)Dimensions L x W x DWeightAmbient at unitWarranty
APEX 35003,353 BTU/hup to 900 ft³ (25 m³)115V/60Hz, 15A8 in and 8 in, 25 ft max per run260 and 290 CFM28.4 x 12.2 x 12.2 in79.4 lb (36 kg)50–77°F (10–25°C)2 years
APEX 50004,462 BTU/hup to 1,200 ft³ (34 m³)115V/60Hz, 15A8 in and 8 in, 25 ft max per run360 and 420 CFM33.9 x 13.8 x 13.8 in88.2 lb (40 kg)50–77°F (10–25°C)2 years
APEX 70006,346 BTU/hup to 2,000 ft³ (57 m³)115V/60Hz, 20A8 in supply, 10 in return, 25 ft max per run470 and 530 CFM40.2 x 15.8 x 15.8 in95.9 lb (43.5 kg)50–77°F (10–25°C)2 years

All models: R290 refrigerant, factory-charged, 5/8 in condensate drain, cellar operating range 50–70°F (10–21°C), wired control panel. Source: APEX Owner's Manual, Section 8.

Specification sequence

How to specify Panthaire APEX

For cellars designed to look finished. Panthaire APEX is a factory-charged, fully ducted wine cellar cooling unit installed in an adjoining conditioned space. Only supply and return grilles appear in the room, and the grilles can match the millwork. The drawing set carries the envelope, the load, the placement, the runs, and the electrical.

  1. 1. Confirm the envelope. R-20 walls and ceiling, vapor barrier on the warm side, sealed penetrations. A glass door adds about 15% to the cooling load. A glass wall adds more.
  2. 2. Size the load. Enter length, width, height, glass area, and insulation in the BTU calculator. APEX 3500, 5000, and 7000 cover up to 900, 1,200, and 2,000 ft³ (25, 34, and 57 m³) when the envelope meets specification.
  3. 3. Place the unit. A conditioned mechanical space held at 50–77°F (10–25°C) year-round. Garages, attics, and crawlspaces do not meet this condition. Keep published clearances on all sides.
  4. 4. Route ducts and drain. Insulated supply and return, 25 ft maximum per run. Short, straight runs outperform long flex. Slope the condensate line to an approved receptor with no trapped low points.
  5. 5. Electrical. Dedicated 115V/60Hz circuit: 15A for APEX 3500 and 5000, 20A for APEX 7000. Do not share the circuit with lighting or a wine refrigerator.
  6. 6. Installation. A licensed HVAC contractor. DIY installation voids the warranty. Panthaire can introduce an approved contractor on an active project.

Grilles can match the millwork. The unit stays out of the finished room. Finish and concealment notes are included with the cut sheets in Documentation. 2 years warranty.

Division 23

CSI Division 23 wine cellar cooling specification

Provide a factory-charged, fully ducted, self-contained wine cellar cooling unit, Panthaire APEX 3500, 5000, or 7000, using R290 refrigerant; a dedicated 115V/60Hz circuit (15A for APEX 3500 and 5000, 20A for APEX 7000); insulated supply and return ducts of 25 ft maximum per run; a sloped condensate drain to an approved receptor; and a mechanical space held at 50–77°F (10–25°C) ambient. Only supply and return grilles appear in the cellar. Installation by a licensed HVAC contractor. 2 years warranty. Warranty conditions include the published ambient range and licensed installation.

Lunch and learn

Specifying Panthaire APEX

Lunch and learn for design teams

A one-hour session, on site or remote, for interior designers, architects, millwork, and design-build teams specifying wine cellars for residential and hospitality projects. The objective is a drawing set that keeps the unit out of the glass wall.

  1. 1. Ducted unit in a conditioned room. Grilles only in the cellar.
  2. 2. A glass door adds about 15%. A glass wall adds more. Size after the envelope is confirmed.
  3. 3. Ambient at the unit: 50–77°F (10–25°C). Garages and attics do not qualify.
  4. 4. Dedicated 115V circuit and a sloped condensate drain.
  5. 5. Licensed HVAC installation. DIY installation voids the warranty.

Definitions

Factory-charged:
The refrigerant circuit is sealed and charged at the factory. No refrigerant work is performed on site.
Self-contained ducted unit:
A wine cellar cooling unit with evaporator, condenser, and compressor in one enclosure, connected to the cellar by supply and return ducts.
Published clearances:
The service and airflow clearances on the Panthaire APEX cut sheet, required on all sides of the unit.

FAQ

Are DWG or Revit files available for Panthaire APEX?
Cut sheets, dimensions, and duct diagrams are in the kit today. DWG and Revit files are in preparation. Until then, the PDF dimensions and the ductwork guide are the source.
Who installs it?
A licensed HVAC contractor. Designers and architects specify. Panthaire introduces approved contractors on active projects.
What duct size does Panthaire APEX require?
8 in insulated supply and return for APEX 3500 and 5000. 8 in supply and 10 in return for APEX 7000. 25 ft maximum per run.
What are the dimensions of Panthaire APEX?
APEX 3500: 28.4 x 12.2 x 12.2 in, 79.4 lb. APEX 5000: 33.9 x 13.8 x 13.8 in, 88.2 lb. APEX 7000: 40.2 x 15.8 x 15.8 in, 95.9 lb.

Back to Panthaire Pro. Related: Before You Build, BTU calculator, Documentation.

Specification documents support the design team. Final sizing and installation are confirmed by the licensed HVAC contractor on site.

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