A 12000 BTU rotary compressor is the pumping heart of a typical 1-ton split air conditioner. Sparks Plumbing Experts supplies these compressors in Kenya, Uganda and Tanzania for AC technicians, refrigeration contractors and facility teams who need a dependable replacement.
Compressors are built for a specific refrigerant, voltage and oil. For that reason, we match every order to your system before we supply it. Send us a photo of the old compressor’s nameplate, and our team will confirm a suitable model and price.
What is a 12000 BTU rotary compressor?
A rotary compressor, also called a rolling-piston compressor, squeezes refrigerant vapour with an eccentric roller that turns inside a round cylinder. As the roller rotates, it traps vapour against a sliding vane and pushes it out at high pressure. This compact design runs smoothly and has fewer moving parts than a reciprocating (piston) compressor.
The figure 12000 BTU describes cooling capacity. A British Thermal Unit is a small unit of heat, and 12000 BTU per hour equals about 3.5 kW of cooling, which the trade calls one ton of refrigeration. In practice, 1-ton units often cool a bedroom, small office or shop, although the real heat load depends on sun, people and equipment.
Further reading
- Gas compressors and how they work (Wikipedia)
- Ton of refrigeration explained (Wikipedia)
- Air conditioning basics (Wikipedia)
Key terms explained
- BTU/h
- British Thermal Units per hour, a measure of how much heat a unit removes each hour.
- Ton of refrigeration
- 12000 BTU/h, or about 3.5 kW of cooling.
- Rolling piston
- The eccentric roller and vane mechanism inside a rotary compressor.
- Hermetic
- Motor and compressor sealed together in one welded steel shell.
- Nameplate
- The label on the shell listing model, refrigerant, voltage and current.
Features and benefits
- Compact rotary design that fits standard 1-ton outdoor units
- Smooth, relatively quiet running compared with piston compressors
- Fewer moving parts, which means less mechanical wear
- Hermetically sealed shell that keeps refrigerant and oil inside
- Suits replacement work and new small air-conditioning units
- Matched to your refrigerant, voltage and capacity before supply
Technical specifications
| Product | 12000 BTU rotary compressor |
|---|---|
| Compressor type | Rotary (rolling piston), hermetic |
| Cooling capacity | 12000 BTU/h (about 3.5 kW, 1 ton) |
| Typical power supply | 220 to 240 V, single phase, 50 Hz (check model) |
| Refrigerant | Model specific, for example R22, R410A or R32 |
| Typical use | Split and window air conditioners, small cooling units |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Displacement, current draw, oil type and pipe connection sizes vary by brand and model. Ask us for the data sheet of the exact unit we quote.
Applications of a 12000 BTU rotary compressor
- Split air conditioners. Replacing a failed compressor in 1-ton wall-mounted units.
- Window air conditioners. Restoring cooling in self-contained window units of the same capacity.
- Small offices. Keeping single-room office units running through hot months.
- Retail shops. Cooling small shops and kiosks with one 1-ton unit.
- Hotel rooms. Fast repairs to guest-room air conditioners between bookings.
- Clinics and wards. Supporting comfort cooling in individual treatment rooms.
- Classrooms. Repairing room units in schools and training centres.
- Homes. Bringing bedroom and living-room air conditioners back to life.
- Restaurants. Cooling dining areas served by small split units.
- Banks and branches. Maintaining comfort units in customer halls and offices.
- Equipment rooms. Repairing small comfort units that cool switch or store rooms.
- Packaged units. Replacing compressors in compact units of matching capacity.
- Service contracts. Holding spares so maintenance teams can swap units quickly.
- Property management. Repairing air conditioners across apartments and rental units.
- Training workshops. Teaching compressor replacement in technical colleges.
How to choose and install
- Match the refrigerant. A compressor built for R22 must not go onto an R410A or R32 system, because pressures and oils differ.
- Check voltage, phase and frequency on the nameplate before you order.
- Keep the same capacity, since a larger or smaller compressor upsets the system balance.
- Replace the run capacitor and inspect the contactor and wiring at the same time.
- Change the filter drier, then pull a deep vacuum before charging refrigerant.
- Let a trained refrigeration technician braze, evacuate and charge the system.
Why choose Sparks Plumbing Experts
- Gases, oils and parts togetherRefrigerants, compressor oils, copper pipe, driers and tools come from one counter, so a repair needs one trip.
- Brands technicians knowOur range includes names such as Danfoss, Maxron, Suniso and Emkarate.
- Compatibility checksWe point out refrigerant, oil and voltage compatibility before you buy, which helps avoid costly mistakes.
- Tools for the whole jobGauges, flaring kits, brazing torches and gas are stocked alongside the parts they install.
- Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
- Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
- Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
- Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
- Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
- Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.
Related products and accessories
Browse more: Compressors · Refrigeration Gases · Copper pipes · AC and refrigeration tools · Insulation.
Ordering from Sparks Plumbing Experts
We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.
Request a Quote WhatsApp 0726 086 895
Frequently asked questions
What size room does a 12000 BTU compressor suit?
It powers a 1-ton air conditioner, which often cools a bedroom, small office or shop. However, sun exposure, occupants and equipment change the real heat load, so ask your technician to confirm.
Is 12000 BTU the same as 1 ton?
Yes. One ton of refrigeration equals 12000 BTU per hour, or about 3.5 kW of cooling.
How is a rotary compressor different from a reciprocating one?
A rotary compressor uses a rolling piston and vane instead of a piston moving up and down. As a result, it is usually smaller, smoother and quieter at this capacity.
Which refrigerant does this compressor use?
It depends on the model. Common versions run on R22, R410A or R32, and the refrigerant is printed on the nameplate. We match the compressor to your system before supply.
Can I fit an R410A compressor on an old R22 system?
Not directly. R410A runs at much higher pressure and uses a different oil, so the whole system must suit it. Ask a qualified technician before mixing refrigerants or parts.
What details do you need for a quote?
Send a clear photo of the old compressor nameplate showing brand, model, refrigerant and voltage. You can share it through our quote form or on WhatsApp.
Can you supply a capacitor with the compressor?
Ask us when you order. A compressor change is a good time to replace the run capacitor, and we can quote a matching one where available.
How do I know my compressor has failed?
Common signs include a tripping breaker, a humming outdoor unit with no cooling, or a seized motor. Similar symptoms come from a faulty capacitor or low refrigerant, so get a technician to diagnose first.
Who should install a replacement compressor?
A trained refrigeration technician should do it. The job needs brazing, vacuum and charging equipment, plus safe refrigerant handling.
Do you deliver outside Nairobi?
We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. We confirm delivery options and costs for your location with the quote.
How much does a 12000 BTU rotary compressor cost?
Prices depend on brand, model and refrigerant. Request a quote with your nameplate details, and we will reply with current pricing.
Does it come with a warranty?
Warranty terms depend on the brand and model we supply. Our team will explain the terms that apply when we send your quote.
People also search for
12000 BTU compressor price in Kenya
Prices vary with brand, refrigerant type and whether the unit is inverter or fixed speed. Send us the old nameplate details for a current quote.
Rotary vs scroll compressor
Rotary compressors use a rolling piston and suit small split units. Scroll compressors use two interlocking spirals and are common in larger units, often 2 tons and above.
Inverter vs non-inverter compressor
An inverter compressor changes speed to match the cooling load, which saves energy at part load. A fixed-speed compressor runs fully on or off. Inverter compressors need a matching inverter drive board.
How many amps does a 12000 BTU compressor draw?
It depends on the model and efficiency. The running current is printed on the nameplate as RLA (rated load amps), while LRA (locked rotor amps) shows the much higher starting current.
12000 BTU to kW
12000 BTU per hour equals about 3.5 kW of cooling.
How long does an AC compressor last?
With clean coils, correct charge and stable voltage, many compressors run for over a decade. Poor maintenance, low refrigerant and voltage swings shorten their life.
What does a compressor capacitor do?
It gives the compressor motor the boost it needs to start and run efficiently. A weak capacitor can cause humming, slow starts or tripping.
Can I replace only the compressor in a split AC?
Yes, if the coils, fans, pipes and controls are in good condition. For very old units, compare the repair cost with a new, more efficient unit.
Which refrigerant is used in new AC units?
Many new split units now use R32, which has a lower global warming potential than R410A. Always use the refrigerant the manufacturer specifies.
1 HP vs 1.5 HP air conditioner
In common market usage, a 1 HP air conditioner is about 9000 BTU and a 1.5 HP unit is about 12000 BTU. Check the BTU rating on the unit rather than the HP label.
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