How does the auto setting work?

AUTO will have the unit switching by itself from COOL to HEAT or vice-versa, depending on the set temp. vs room temp.

How many square feet will this work for?

For typical conditions, we recommend this unit for managing spaces between 400 and 650 square feet.

What are the dimensions of the inside unit on the 18,000

Net Dimensions (WDH): 38.0 x 8.46 x 12.56 Inches

What size wire and breaker do I need to get for this unit?

This would take a 20A double-pole breaker. The corresponding wire would be 12 AWG, with 2 hots and a ground, no neutral.

What is the EER on a 18K BTU 230V Pioneer mini split with SEER 19.0 and HSPF 10.0? Thank you!

The EER rating on this particular model is 11.

what size wiring does it require for power

This would take a 20A double-pole breaker with 12 AWG wire, the wire is 2 hots and a ground with no neutral.

what size are all the connecting nuts/fittings on the line set and/or condenser. Basically, I interested so I can get the appropriate crawfoot socket size for use with a torque wrench.

This system uses 1/4" and 1/2" diameter lines and those would have wrench/tool sizes of 5/8" and 15/16" respectively.

How much square footage will 18,000 btu take care of? Heat and cool?

We generally recommend that capacity for managing spaces up to 650 square feet.

If you order the 10ft. lines, do they come flared with nut ready for installation?

Yes, all lineset selections come pre-flared and ready to connect.

What size breaker does this unit need?

This would take a 20A double-pole breaker with 12 AWG wire.

Can I control this unit through an app on my phone?

Yes you can, you would to add in this USB device.

Since i am ordering this unit with a 25' line will it automatically be 1/2" in diameter?

Yes, we will always match the correct lineset for you when you select the option from the dropdown menu.

What does SEER MEAN

This would be the efficiency of the system, the higher the better. Read more here: https://en.wikipedia.org/wiki/Seasonal_energy_efficiency_ratio

Will it heat below zero

This unit will not heat below 0°F, it stops at 5°F. We have two other series that are low-ambient and can heat down to -13°F. They are Diamante and Inverter++. Please click here or here to see them.

Is the unit operation on full capacity, off, or can it deliver reduced capacity on light load days?

This is a variable speed inverter that will work only as much as it needs to in order to reach and keep the set temperature in the room.

what size is the pipes as I need to buy 25' lines.

This model uses 1/4"-1/2" diameter lines.

What is the power supply for the indoor wall unit? Is the wiring for that unit included? Does it run from the condenser to the wall unit with the refrigerant lines?

The indoor unit is powered by the outdoor unit via the supplied communication cable. It runs with the copper lines. This outdoor unit takes a 20A double pole breaker.

The manual says that the nominal hose length is 16’. How much efficiency will it lose using a 10’ hose and will you need to drain some of the precharge?

The amount of pre-charge is optimized for 16 ft, but any run between 5 and 25 ft will not require adjustment of the refrigerant levels.

IS there any way to lock the remote so kids cannot adjust set temp?

One option for that is to hide the remote and instead control the system using your smartphone by implementing the WiFi Smart Controller Module.

do you sell pre charged line sets for the PIONEER Air Conditioner WYS018G-19?

The outside unit contains the precharge, the linesets themselves are not precharged and require vacuuming before releasing from the outside unit.

How many square feet does it cool or heat?

For regular applications, this particular unit is suitable for managing up to 650 sq ft.

What size copper line included ?

The diameter of lines for this particular unit is 1/4"-1/2". The length would be selected from the "Installation Kit Options" dropdown menu above the Add to Cart button.

Does the unit need to use gravity to drain? Is there an option for having the discharge above the level the level the indoor unit is installed?

By default, this unit drains by gravity. If this will not be feasible, you can consider adding in a condensate pump.

How many Amps does the outdoor unit need? How many Amps does the into unit need?

The outside unit would take a 20A double-pole breaker. The inside unit draws power from the outside unit via the communication cable. The entire system is rated 7.4A in cooling and heating.

Does this unit work as a stand-alone dehumidfier as well? WYS018GMFI19RL-16

It is not designed to operate like a stand alone dehumidifier, but moreso to assist with driving down humidity quickly. It will not get the humidity to a certain percentage.

i'm looking at the WYS018GMFI19RL-16 unit. What options do I need to complete a basic installation?

The system comes with everything that is needed except for the electricals and the necessary tools. Electricals would include things like breaker, disconnect box, whip, wire from breaker to condenser, etc. Some specialty tools are needed, like pressure gauges and HVAC pump. The system is relatively straightforward to install, the main technical steps being electrical hookup and vacuuming of the lines with a pressure check afterwards.