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aciq|SKU:FTMA4B36L0CA

ACiQ 3 Ton Variable Speed Air Handler

Consistent Airflow for Grid-Independent Climate Control

Variable speed motor — Ramps from 300 to 1,300 RPM for precise airflow control
Multi-positional install — Upflow, downflow, or horizontal mounting for flexible placement
Factory-installed TXV — Pre-calibrated expansion valve for accurate refrigerant metering
Dual condenser ready — Works with AC-only and heat pump outdoor units
Optional electric backup — Supports 5kW to 20kW heat kits for supplemental warmth
  • FREE System Design Consultation -- Engineers size your HVAC integration before you buy
  • FREE Shipping -- Freight delivery included on all orders
  • 30-Day Performance Guarantee -- Uninstalled returns accepted, no questions asked

$960.95

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ACiQ 3 Ton Multi-Positional Two Stage Air Handler
ACiQ 3 Ton Multi-Positional Two Stage Air Handler
$960.95

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In the box

  • ACiQ FTMA4B36L0CA air handler unit
  • Factory-installed TXV kit
  • Installation documentation
ACiQ 3 Ton Multi-Positional Two Stage Air Handler
ACiQ 3 Ton Variable Speed Air Handler
$960.95

Consistent Airflow for Grid-Independent Climate Control

The FTMA4B36L0CA delivers reliable, two-stage airflow control backed by ICP fan coil technology — a field-tested design built for homes that can't afford downtime. With its variable speed motor ranging from 300 to 1300 RPM, this air handler maintains precise temperatures whether you're running on solar or backup power. Its multi-positional configuration and R-410A refrigerant make it a grid-independent workhorse for off-grid proven homesteads and cabins demanding consistent year-round comfort.

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Variable Speed Motor
Multi-Positional Install
Factory TXV Kit
AC & Heat Pump Ready
1,225
Max CFM
300–1,300
Motor RPM Range
3 Ton
Cooling Capacity
Variable Speed Motor Eliminates Startup Surge Spikes

Variable Speed Motor Eliminates Startup Surge Spikes

Single-speed air handlers are the hidden killer of off-grid power systems. Every time a fixed-speed blower kicks on, it pulls locked-rotor amps that spike your inverter and drain your battery bank — forcing you to oversize your entire power architecture just for HVAC startup. The ACiQ FTMA4B36L0CA solves this with a variable speed motor that ramps from 300 to 1,300 RPM, delivering up to 1,225 CFM without the violent startup surge. Because we only carry off-grid proven components at Off Grid Vault, this air handler earned its place: it lets your inverter breathe, keeps your battery bank stable, and moves air efficiently. The factory-installed TXV ensures precise refrigerant metering from day one.

Multi-Positional Design Fits Your Build, Not the Other Way Around

Multi-Positional Design Fits Your Build, Not the Other Way Around

Not every cabin, homestead, or off-grid home has a standard utility closet. The FTMA4B36L0CA installs in upflow, downflow, or horizontal configurations — so you adapt the unit to your floor plan, not the reverse. At 53 7/16 inches tall by 21 1/8 inches wide and 19 1/8 inches deep, it fits tight mechanical rooms, crawl spaces, and attic installations where larger units simply will not go. The 20 by 20 inch filter size uses standard media you can pick up at any hardware store, not proprietary cartridges. For grid-independent homeowners building from scratch or retrofitting an existing structure, this flexibility eliminates the need to redesign your mechanical room around your air handler.

Dual Condenser Compatibility Keeps Your Options Open

Dual Condenser Compatibility Keeps Your Options Open

This air handler works with both AC-only and heat pump condensers running R-410A refrigerant. That matters when you are planning a multi-year off-grid build. Start with straight cooling this summer, add a heat pump condenser next year when your finances allow — the FTMA4B36L0CA handles both without modification. The 3/8 inch liquid line and 7/8 inch suction line connections are standard sizing, so matching line sets are readily available. Optional electric backup heat kits from 5kW through 20kW give you supplemental warmth when solar production drops in January. Running on 208/230v single-phase power with a 15-amp max breaker, this unit integrates cleanly into residential off-grid electrical panels.

Will This Fit Your Setup?

Verify these dimensions and connection specs before ordering.

  • Available space measures at least 21 1/8" wide x 19 1/8" deep
  • Vertical available of at least 53 7/16" for upflow or downflow installation
  • Your condenser uses R-410A refrigerant with 3/8" liquid and 7/8" suction line connections

Where This Air Handler Performs

Engineered for setups where consistent climate control is non-negotiable.

Off-Grid Homesteads
Light Commercial Spaces
Remote Cabins

Full specifications

At a glance

Dimensions
21 1/8"
Power
.5 HP
Warranty
See product page
Full specifications14 data points across 4 categories

Dimensions

Height53 7/16"
Width21 1/8"
Depth19 1/8"
Weight130.000000 lbs

Power & Performance

Blower MotorVariable Speed
Maximum CFM1225
Motor RPM300-1300
Horsepower.5 HP
Electric Backup Heat Capabilities (Optional)5 kw, 8 kw, 10 kw, 15kw, 20 kw

Materials

RefrigerantR410A
Filter Size20" x 20"
Liquid Line3/8"
Suction Line7/8"

Compliance & Warranty

WarrantySee product page

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. This air handler is no exception.

30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free ShippingShips free to your door — LTL freight included on large items, no surprise charges.
Authorized Dealer SupportWarranty claims handled directly through us. Real people, real accountability after the offer.
★★★★★
“Plumbed this into my 1,200 sq ft cabin with a 48V EG4 system and a 3-ton heat pump condenser. The variable speed motor is the real deal — my inverter barely blinks when it kicks on compared to the old single-speed unit I pulled out. Moves air quietly through the whole space. Multi-positional install saved me because I went horizontal in a low-ceiling mechanical room. Solid piece of equipment.”
F
First L.Prescott, AZ

3 Ton Multi-Positional Two Stage Air Handler

The FTMA4B36L0CA is a high-performance air handler that combines the reliability of ICP fan coil technology with the eco-friendly benefits of R-410A refrigerant. Designed for optimal efficiency and comfort, this unit offers advanced features to ensure consistent airflow and precise temperature control. With its environmentally balanced refrigerant, the FTMA4B36L0CA not only delivers superior performance but also aligns with modern sustainability standards, making it an ideal choice for those seeking both reliability and environmental responsibility in their HVAC systems.

The ACiQ air handler is engineered to deliver exceptional comfort while offering a user-friendly, easy-to-install design. Its thoughtful construction ensures smooth and consistent airflow, enhancing the overall indoor environment for optimal comfort throughout the year. With its simplified installation process, this air handler makes it easier than ever for contractors to integrate into HVAC systems, saving time and effort while providing high-quality performance. Ideal for residential and light commercial applications, the ACiQ air handler combines convenience with reliability to meet the needs of modern homes and businesses.


ACiQ 3 Ton Two Stage Air Handler

ACiQ 3 Ton Two Stage Air Handler Specs

  • Weight (in lbs): 130.000000
  • Dimensions: 53 7/16″ H x 21 1/8″ W x 19 1/8″ D
  • Blower Motor: Variable Speed
  • Maximum CFM: 1225
  • Motor RPM: 300-1300
  • Horsepower: .5 HP
  • Electric Backup Heat Capabilities (Optional): 5 kw, 8 kw, 10 kw, 15kw, 20 kw
  • Configuration: Multi-Positional
  • Refrigerant: R410A
  • Filter Size: 20″ x 20″
  • Liquid Line: 3/8″
  • Suction Line: 7/8″
  • Electrical: 208/230v 1 Phase 60 Hz
  • Phase: Single Phase
  • Max Breaker Size: 15 Amps
  • Tonnage: 3 Ton
  • Connection: Sweat


ACiQ 3 Ton Two Stage Air Handler Features

  • Variable speed
  • Multi-positional – can be installed in the upflow, downflow, and horizontal configurations
  • Factory-installed TXV kit
  • Compatible with both AC-only and heat pump condensers


Your Satisfaction with ACiQ is Guaranteed:

  • Lowest Price Guaranteed
  • Limited 10 Year Warranty

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Frequently Asked Questions

Contractor pricing on a comparable 3-ton variable speed air handler typically runs $1,400 to $1,800 after markup. At $960, you are getting ICP fan coil technology with a factory-installed TXV at a price that respects your investment. For off-grid buyers, the real savings come downstream: the variable speed motor means you do not need to oversize your inverter or battery bank to handle startup surges. That alone can save you thousands on your power system.
Off Grid Vault is an authorized dealer carrying vetted brands. Every product we sell is backed by the full manufacturer warranty. If something fails, warranty claims go through us — not through a ticket queue with no phone number. We stand behind the spec sheet because we have already verified it. That is the difference between buying from a general marketplace and buying from a store that specializes in off-grid power systems.
The FTMA4B36L0CA is compatible with any R-410A AC-only or heat pump condenser rated for 3 tons. Connection sizes are standard: 3/8 inch liquid line and 7/8 inch suction line. On the electrical side, it runs on 208/230v single-phase at a 15-amp max breaker — well within the capacity of most hybrid off-grid inverters. For system-specific compatibility questions, our free system design consultation connects you with engineers who can confirm fit before you buy.
The FTMA4B36L0CA uses ICP fan coil technology — the same platform deployed in residential and light commercial installations for years. The variable speed .5 HP motor operates at lower RPM during most of its run time, which reduces wear compared to single-speed units that cycle between full blast and off. R-410A refrigerant compatibility ensures long-term parts availability. Specific warranty terms follow the manufacturer's standard coverage, which we handle directly as an authorized dealer.
Yes. The FTMA4B36L0CA works with both AC-only and heat pump condensers out of the box — no modification needed. You can pair it with a straight AC condenser today and swap to a heat pump next season when your finances or solar array expands. The optional electric backup heat kits ranging from 5kW to 20kW can also be added at any time, giving you a phased approach to full climate control without replacing the air handler.
The FTMA4B36L0CA requires a 15-amp max breaker on 208/230v single-phase 60 Hz power. At 130 lbs, the unit ships via freight and should be hard-wired by a qualified installer. If you are integrating this into an off-grid system, confirm that your inverter's continuous output can handle the variable speed motor's running amperage plus any electric backup heat kit you plan to install. Our free system design consultation can help you spec the exact breaker, wire gauge, and inverter sizing for your setup.
SKU: FTMA4B36L0CA Category: Brand:

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. This air handler is no exception.

30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free Shipping Ships free to your door — LTL freight included on large items, no surprise charges.
Authorized Dealer Support Warranty claims handled directly through us. Real people, real accountability after the offer.

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About aciq Air Handlers

aciq is a trusted manufacturer of premium air handlers. OffGridVault is an authorized dealer offering the full aciq lineup with free delivery, price match guarantee, and expert support.

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