Air Dominion 36,000 BTU 18 SEER Multi-Position Air Handler System
Reviewed pricing, lead time, freight, and final configuration are confirmed during quote review before order release.
Air Dominion 36,000 BTU 18 SEER Multi-Position Air Handler System is a ducted central heating and cooling system pairing a 18 SEER class variable-speed inverter condenser with a variable-speed DC blower air handler. The air handler installs in vertical up, vertical down, or horizontal orientations, so it fits closets, attics, garages, and mechanical rooms without a special cabinet, and optional electric heat strips add staged backup heat. This Air Dominion quoting record is presented as a reviewed product configuration, with final equipment configuration confirmed during quote review before release.
Highlights
- 36,000 BTU (3 ton class) all-electric split system with matched condenser
- 18 SEER efficiency tier - 16.1 SEER2 system rating at this size
- 4-way multi-position cabinet: upflow, downflow, horizontal left or right
- Optional field-installed electric heat: 5 kW, 7.5 kW, 10 kW, 15 kW, 20 kW
- Insulated galvanized-steel cabinet controls heat loss and condensation
- A-shape coil with inner-groove copper tube and hydrophilic aluminum fins
- R454B current-production refrigerant platform
Specification Table
| Nominal capacity | 36,000 BTU (3 ton class) |
| Efficiency tier | 18 SEER (16.1 SEER2 system rating) |
| Configuration | Multi-position: upflow, downflow, horizontal left/right |
| Expansion device | Piston |
| Blower | Variable-speed DC blower with 24V thermostat compatibility |
| Electric heat options | 5 kW, 7.5 kW, 10 kW, 15 kW, 20 kW (field-installed) |
| Voltage | 208-230V, 60Hz, 1 phase |
| Refrigerant | R454B |
| Cabinet | Insulated galvanized steel |
| Air handler dimensions | 49.02 H x 21.02 W x 21.02 D in. |
| Condenser dimensions | 37.24 W x 16.14 D x 31.89 H in. |
Included Equipment
- Multi-position air handler cabinet
- Matched outdoor condenser
- Piston expansion device (factory-fitted)
- Electric heat strip kit only when selected as an option
Installation Notes
- Confirm orientation (upflow, downflow, horizontal), return/supply duct transitions, and condensate routing before release.
- Selected electric heat kits are field-installed; breaker and wire sizing depend on the kit kW and are confirmed during quote review.
- Line-set length, matched-condenser placement, and charge verification are confirmed during quote review.
- Installation and commissioning should be completed by a qualified HVAC professional.
- Images are representative of product class and included accessory configuration. Final model, electrical requirements, and included components are confirmed during quote review.
Warranty and Support
- Prepared for Air Dominion quote review. Final model, electrical requirements, accessories, warranty coverage, and installation documents are confirmed before release.
- Published warranty terms are issued with the final quote packet.
Frequently Asked Questions
Does the system include the outdoor condenser?
Yes. This quoting record is a matched system: multi-position air handler plus outdoor condenser, with pairing finalized during quote review.
Which electric heat sizes fit this unit?
This size accepts 5 kW, 7.5 kW, 10 kW, 15 kW, 20 kW kits. Factory electric-heat fit table: 5.0, 7.5, and 10.0 kW kits fit 18K-60K air handlers; 15.0 and 20.0 kW kits fit 36K-60K air handlers.
Can it be installed horizontally in an attic?
Yes. The cabinet is 4-way convertible for vertical up, vertical down, and horizontal left or right installations.
What thermostat does it use?
Any standard 24V thermostat with staged heat support; controls scope is confirmed during quote review.
Documents
- Type Air Handler System
- SKU AD-HVAC-AH-18S-36K-230-NOHEAT
Download the available product documents below. If a document is not linked yet, use the SKU during quote review.
Project pricing, lead time, freight routing, and final configuration are confirmed during quote review before order release.
Support and request quote workflows stay available throughout specification and order planning.