Mini Split Heat Pumps

May Supply carries Enviroair Mini Split Heat Pumps.

Mini Split Heat PumpsEnviroair‘s line of ductless mini split heat pumps provide consumers with ductless cooling and heating solutions.  The systems offer a quality solution, and are efficient and easy to install.  
Mini-Split heat pumps are a great way to add A/C to a home with solar or radiant heating.
Click here to view the photo gallery of May Supply’s own mini split heat pump system installation!
EnviroAir’s mini split heat pumps provide an economical solution to conventional ducted systems for residential and light commercial environments. Inverter driven compressor adjusts condenser speed to changing temperature conditions saving energy costs.

  • Single and multi-zone application flexibility with 35 different 2, 3, & 4 zone combinations
  • 15 to 17.2 SEER high efficiency models with capacities from 9,000 Btuh to 24,000 Btuh
  • Fully programmable infrared hand-held remote controller with an easy to read LCD display
  • Smooth air flow design and isolated compressor provide exceptionally quiet operation
  • Air handler’s low profile and white cabinet blends with any decor
  • Simple maintenance with easily removable washable filters
  • Easy installation – requires no ductwork and minimal on-site adjustment

Frequently asked questions about mini split heat pumps:

How do EMI Ductless Split Systems work?

EMI ductless split air conditioning systems are the ideal solution when traditional central air conditioning systems are not practical or feasible. Designed for economical and efficient zone conditioning, ductless split systems utilized in commercial, industrial, institutional and residential buildings allow the owner/occupant the flexibility to satisfy most conditioning requirements.

 A ductless split air conditioning system is one in which the indoor unit- the air handler/evaporator- is connected to the outdoor condensing unit by electrical wiring and refrigerant piping. EMI units may be located up to 100′ (30.5 M) apart, including up to 35′ (10.6 M) of lift. A minimal 3 inch (76 MM) exterior wall opening is required to allow for the wiring and piping. Utilization of ductless split systems allows you to condition various zones to meet usage requirements economically and efficiently, while achieving maximum occupant comfort levels.

 Unique to EMI are 2, 3 and 4 zone multi-zone systems that allow up to four separate evaporators, each an independent circuit, to share one outdoor condensing unit, with up to 4 tons (14.0 KW) capacity. Each circuit includes an independent compressor, valves, lines,controls, etc. Only the cabinet and fan are common to each circuit. Because each evaporator operates on a separate circuit, the evaporators styles and sizes may be mixed or matched to satisfy both sizing and air circulation requirements.

Can I order supplemental heat for both cooling only and heat pump systems?

Yes. Supplemental electric heat is available on most EMI systems (factory installed only). Check the specific evaporator specifications for all available options.

Do your units come charged with enough refrigerant to cover the condenser, evaporator and line set?

No, the condenser comes precharged with refrigerant for the condenser and an evaporator allowance. You will have to add additional refrigerant based on your line set size and length.

Does EMI provide anti-short cycle protection in its systems?

ASCT is a standard feature on EMI evaporators.

Does EMI supply 24V remote thermostats?

EMI offers a selection of 24V remote thermostats. However, others may be used. When selecting a thermostat “by others”, be sure to select an HVAC thermostat compatible with a 24 Vac, Heating/Cooling system. If the system is a heat pump with back up electric heat be sure to select a single stage cooling 2-state heating thermostat.

What is the difference between heat pumps that are listed as limited range or max. range?

A limited range heat pump is not a defrosting unit in heat mode. Heat pump operation ceases at approximately 35 degreees F (1.6 C) outside temperature and electric resistance heater in the air handler (if supplied) is the sole source of heat. The 52HA, T2HA, T3HA, and T4HA Series of outdoor units are limited range heat pumps. S1HA single zone condensers are maximum range heat pumps, which operate with to 0 degrees F with defrost cycle.

The S1HA condensing unit will energize the electric heater on the indoor evaporator (if supplied) during the Defrost Cycle to dampen the cold air that is discharged off the coil during the Defrost Cycle.

If I need parts for my unit what information do I need to provide?

To ensure we get you the correct parts, please ensure you have the complete 15 digit model number and the unit’s serial number.

What is the criteria selecting the low ambient option?

If the system will be operating for extended periods of time at 60 degrees F or below the low ambient option should be added.

What length line sets are allowed for your units?

You can run up to 100 ft. (30.5 M) maximum length, to include up to 35 ft (10.6 M) in vertical rise. Consult the IOM or Tech Guide for P-trapping requirements within the run.

Consult the Installation and Operation Manual (IOM) of the outdoor condensing unit or the Service and Technical Guide (STG) for P-Trap requirements for the refrigerant piping run. These documents can be obtained from our website under the Product Literature heading.

Where is the transformer located in an EMI system?

In an EMI system the 24-volt transformer is usually located in the outdoor condensing unit. If you are using an EMI evaporator with other than an EMI condensing unit, you MUST add a 40VA transformer. Please refer to (bulletin 01019) for more details. Effective December 1, 2004 all America Series products will be manufactured with the 24 volt transformer mounted in the air handler. Please see Product Bulletin 04001 for more details.

Call May Supply today and let us size and quote your next job. May Supply is the Shenandoah Valley’s expert on mini split heat pumps!