Senville SENL-24CD 24000 BTU 15 SEER Split Air Conditioner and Heat Pump, Mini

I installed this in my master bedroom when doing a master bath remodel. I mounted on an inside wall and routed the lineset inside the wall to the outside where my other condensors sit. The thing is super quiet with fan on slow and it helps keep our master BR at the right temperature for comfortable sleeping. I did purchase the recommended adapter for connecting a standard gauge set and it was necessary. I pumped down the lineset and evaporator for about 30 minutes with valve core removed and did a pressure test with compressed air before evacuating again (with valve core installed), and charging the lineset with 410a as a final check before opening the service valves. I also bought a small bottle of nylog which I read is helpful to prevent slow leaks on the 4 flare type fittings that the lineset uses. I put a dab on the sealing surfaces of all 4 fittings.

I suppose that it may be possible for an inexperienced DIY installer to have success without using a vacuum pump by just cracking the service valves and purging the lines with a little of the included 410a but this is not a legal practice and may leave the unit low on freon (besides leaving it subject to issues from moisture in the lines and evaporator.)

I mounted the condensor on brackets that I bought on amazon and I ordered some vibration isolation feet. Since I didn’t have the feet when I did the install I just put in a couple of bolts loosely and used cable ties to secure the condensor to the brackets for initial test. The thing is so quiet and smooth that I really didn’t need those vibration isolation feet. Both the senville unit and the aftermarket brackets that I bought came with some kind of rubber pads but I didn’t see how those could fit or do any good. The bolt holes did line up but the holes are quite large and the mating surfaces of the condensor and brackets are not flat so its not a very good looking fit. Washers are needed to bolt it down. The photos show the current status and I plan to add some more insulation to the lineset and tape and seal it up. I coiled some excess length outside by the unit so that I may have flexibility to move it a bit in the future. I wanted to avoid having it placed too close to the outlet or inlet of my nearby larger condensors so as to avoid breathing preheated air or feeding preheated air to the other units.
I routed the condensate line in PVC inside the wall and left the connection to it where it will be accesible inside a bathroom closet behind the evaporator in case it needs to be cleared or flushed with bleach

Outstanding product! Works wonderful. Quiet, Quiet, Quiet! We love it.
Word of note: the instructions are vague in a couple of key areas. Mainly, the electric and control wire cabling type. The manual lists the european types. Confusing. After several calls to the manufacturer customer and tech service teams, it was agreed a 12/2 with ground (two wires and a ground) for electric wire.

We bought Romex underground 12/2 GUFRCR with ground wire for power wire. And The control cable: 14/3 with ground (four total wires) control type cable does the trick. We bought 14/4VNTC tray cable. It should be with stranded wire. Both wiring choice worked great and both were bought at Wholesale Electric Suppy. No issues.

P.S. if by chance you use a GFCI breaker do NOT get one with a ground fault interrupt. The GFCI with fault interrupter kept tripping the breaker. We ended up using a standard 20-amp Square D homeline breaker. Hope this is helpful.

The unit works as expected, installation was relatively painless and the unit looks nice.

I bought the 24K BTU unit for an 800sq. ft. un-insulated garage. The installation was new so all electricity, holes and mounting had to be done from scratch.I am DIY’er and was comfortable with doing everything excepting the final line vacuum and pressure test mainly becuase it was more expensive to buy the tools for this than to hire someone.

The unit came with most of the materials needed for installation. A word of caution, in order to install the mini split I had to purchase about $200 in tools including:
– Yellow jacket Flare tool 60278 : 410a systems require a very particular flare
– crowfoot wrench set Neiko : Allows you to use a torque wrench to achieve the require torques
– nylog : refrigerant sealant
If you want to vacuum it out yourself you’ll spend another $400 -$600 dollars because you will need a two stage vacuum pump, 410a adapter and a micron meter. I paid a professional $300 for this step.

The unit does come with the outside condenser unit filled with refrigerant, (2)16 foot hoses, inside air handler, remote control, vinyl wrap, neoprene block, drain hose for inside unit and extra pipe connectors. You will need to supply electricity, control wires from the air handler to the compressor, screws for mounting the air handler, outside 230v AC disconnect switch, waterproof electrical wire conduit, and a wall mount or base for the outside compressor. I wound up purchasing some 10-12 AWG spade crimps for the wires. My only complaint regarding the installation was that the electrical terminal for connection the 230v main and control wires was too small and frail. It wouldn’t accept 12AWG wire which is why I would up having to buy the crimps to get the wires to connect to the block.

The unit is able to cool down an un-insulated 800sq. foot area to 75 degrees on a humid 95 degree day. I’ll wait for winter to judge the heat pump portion of the unit but so far I am very satisfied.

I am very satisfied with this unit, works great. Installed my self with ease, no problem from start to finish. Also customer service was on point with every aspect I needed assistance with.