Daikin MXM 36K BTU 4-Zone Heat Pump R-32

Description

The 4MXM36AVJU9 is a heat pump from Daikin stocked by Buy Comfort Direct — full listing: Daikin MXM 36K BTU 4-Zone Heat Pump R-32. This page covers what it is, where it fits in a system, what to check before you order, and how it ships.

About the 4MXM36AVJU9

• Energy Star Certified: No
• Refrigerant Type: R-32
• Unit Height: 29-1/2 in
• Unit Width: 34-1/4 in
• Regional Compliance:
  • North
  • Southeast
  • Southwest
• Max Overcurrent Protection: 25 A
• Power Phase: 1 Ph
• Power Voltage: 208-230 V
• Compressor Stages: Inverter
• Compressor Type: Swing
• Unit Weight: 142 lb
• Tonnage: 3.0
• Unit Depth: 12-5/8 in
• Heat Exchanger Type: Air Cooled

Where the 4MXM36AVJU9 fits

This is the 4-zone MXM outdoor unit by itself: 36,000 BTU of total capacity to be divided across up to 4 indoor heads, which are bought separately. It is how you condition 4 rooms that each want their own thermostat from a single outdoor unit and a single set of penetrations.

The compressor is inverter-driven and the refrigerant is R-32. It runs on 208-230 V, so it needs a dedicated 240-volt circuit. The part that needs planning is the head selection: the indoor units you choose have to stay within the total capacity and the port count, and Daikin publishes combination tables for exactly that. Tell us which rooms you are covering and we will work the combination out with you before anything ships.

See the rest of the line in Daikin MXM multi-zone equipment, or start from the room instead with our HVAC sizing tool. For help matching an indoor unit to an outdoor unit, call (877) 843-4822 and we will check the model numbers against Daikin’s tables before you buy.

Specifications

Where the 4MXM36AVJU9 fits

A heat pump is an air conditioner that can run in reverse: in winter it pulls heat from outdoor air and moves it inside, which is far cheaper than resistance heat in most of the country. The 4MXM36AVJU9 pairs with a matched indoor coil or air handler, and in cold climates it is often installed dual-fuel with a gas furnace that takes over below the balance point.

Inverter (variable-capacity) heat pumps modulate output to match the load, which keeps the house closer to setpoint, runs quieter and pulls the best efficiency numbers; single-stage units cost less up front and are simpler to service. Both need a matched indoor coil to hit their ratings.

Background reading: the U.S. Department of Energy heat pump guide.

What to check before you order

• Tonnage from a load calculation; SEER2 and HSPF2 for your climate.
• Matched indoor coil or air handler with the same refrigerant (AHRI-listed pairing).
• Thermostat with an O/B reversing-valve terminal, or a dual-fuel thermostat if pairing with a furnace.
• Electrical service, pad, disconnect and line set (sold separately).

Installation and service notes

Outdoor heat pumps sit on a pad raised above snow and grass level with clearance for defrost water to drain, a disconnect within sight, and a line set sized and run within the manufacturer’s length and lift limits. Commission it in both heating and cooling modes and confirm the reversing valve and defrost cycle operate before you leave.

Why buy the 4MXM36AVJU9 from Buy Comfort Direct

We are a stocking HVAC distributor based in Winder, Georgia — not a marketplace reseller. Orders over $99 ship free, and financing is available at checkout through Affirm. If you are not sure this is the right part, call (877) 843-4822 before you order and we will match it to your equipment. Browse the rest of our Daikin, and see what customers say on our reviews page.

Ordering and delivery

In-stock items ship from our Winder, Georgia warehouse. Orders over $99 ship free; large equipment travels by freight carrier and parts by ground, and you will get tracking by email when it leaves. Need it matched to a system, or need a quantity that is not on the shelf? Use the contact page or call (877) 843-4822 and we will confirm availability before you pay.

4MXM36AVJU9 FAQ

Will a heat pump keep up in winter here?

In Georgia and most of the Southeast, yes, with backup heat for the coldest nights. Further north, dual-fuel with a furnace is the usual answer.

Does the 4MXM36AVJU9 ship free?

Yes on orders over $99 — most orders that include it qualify. Large equipment ships by freight carrier; parts ship by ground.

How do I know it matches my equipment?

Send us your equipment model number through our contact page or call (877) 843-4822. We check the pairing before it ships.