http://www.qishanrcompressor.com/

Qishanr, RM202, B2 Building, No. 2 Jiaoxin Songbaili Gaopu Industrial Zone Road, Baiyun District, Guangzhou (2026)

19/10/2026

GMCC KSN89D49UFZ31 — an 8.9 cc variable-frequency rotary delivering 2,750 W at a published COP of 4.02.

FEATURE — what it is

The KSN89D49UFZ31 is a hermetic rotary compressor from GMCC's SN series, built on R32/R410A and driven by a DC inverter supply. The 89 in the part number is the displacement: 8.9 cm³/rev. GMCC's 2025 rotary handbook lists it at 2,750 W / 9,383 Btu/h with 684 W input and a COP of 4.02 W/W, a 250 mm body height and 8.1 / 12.9 mm suction and discharge connections.

ADVANTAGE — what it does better

The efficiency number is the story here. At 2,750 W of cooling the compressor draws 684 W, so COP comes out at 4.02 — a high figure for the 8.9 cc class, and the kind of number that moves a seasonal efficiency label rather than just a datasheet.

Variable frequency is what makes that usable. The drive ramps rotor speed instead of switching the motor on and off, so the compressor sits at the load the room actually needs. Three consequences in the field: the setpoint holds instead of oscillating, starting current stays low because there is no direct-on-line inrush, and the machine is quieter at part load — which is where a residential unit spends most of its running hours.

R32 carries the duty. It moves more capacity per kilogram of charge than R410A and has a far lower global warming potential, so the circuit needs less refrigerant for the same 2,750 W. The same part number is also listed for R410A, which keeps it serviceable in markets still specifying that gas.

BENEFIT — what it means in your equipment

• Residential split and multi-split systems in the 2.8 kW class — the volume segment where COP, not headline capacity, is what the energy label measures.
• Heat pump and heat-pump water heater duty, where inverter modulation holds capacity as ambient drops.
• Dehumidifiers, portable and light commercial units, where a compact 250 mm body and 8.9 cc displacement fit a tight chassis.
• Replacement and aftermarket supply: the same KSN family runs 8.9 cc, then 9.8, 10.3, 12.0 and 14.0 cc on the same refrigerant and control platform, so a product range can be covered without changing drive architecture.

For a buyer, that last point is the practical one — this is a mainstream displacement with published siblings on both sides of it, not an orphan part number.

EVIDENCE — where these numbers come from

Published GMCC handbook data for this exact model gives displacement 8.9 cm³/rev, cooling capacity 2,750 W / 9,383 Btu/h, power input 684 W, COP 4.02 W/W, body height 250 mm, and 8.1 mm / 12.9 mm suction and discharge connections, on R32/R410A in the DC inverter rotary class. A distributor listing for the same part number carries the same core figures: 8.9 cm³/rev, R32/R410A, DC Inverter, 2,750 W / 9,383 Btu/h, COP 4.02 W/W.

What we are not claiming. No supply voltage or frequency is published for this part number by a source worth quoting — one distributor lists "265V at 240Hz", another an obvious typo, so we have deliberately left voltage out. An inverter compressor's input window is fixed by its matched drive, not by the compressor alone. And the capacity figures are rated at the handbook test condition, not at your operating point — send us the equipment details and we will confirm the exact variant and drive pairing.

16/10/2026

Hi dear friends,

October in Hangzhou is beautiful, and we have the perfect excuse to meet up!

QISHANR will be exhibiting at RACC Expo 2026 from October 22nd to 24th. We’re bringing our complete lineup of refrigeration oils (POE, PAG, PVE, MO) and our full range of compressors (Reciprocating, Scroll, Rotary, Screw).

Whether you need to restock on essential oils or are looking for a new compressor supplier, our team is ready to help. Come check out the products, grab some goodies, and let's chat about the industry!

📍 Stop by and say hi:

Booth: A38

Where: Hangzhou Grand Convention and Exhibition Center

When: October 22-24, 2026

Who else is attending RACC this year? Drop a comment below or send me a DM so we can connect while we’re in town. See you in Hangzhou!

16/10/2026

GMCC KSN89D21UER31 — an 8.9 cc DC inverter rotary on R32/R410A, built for air conditioning duty.

FEATURE — what it is

The KSN89D21UER31 is a hermetic rotary compressor from GMCC's DC inverter single-cylinder family, running on R32/R410A. The model number carries the size: the 89 group is the 8.9 cm³/rev displacement band. GMCC's own rotary catalogue places this family under its GREEN REFRIGERANT line, rated on the SEER 60 test condition — that is, a seasonal-efficiency rating rather than a single-point capacity, which is exactly what an inverter compressor is bought for.

ADVANTAGE — what it does better

Because it is a DC inverter machine, capacity is modulated by speed instead of being switched on and off. That buys you three things that matter in the field: steadier room temperature instead of a saw-tooth cycle, a much softer start with lower inrush current, and quieter operation at part load — where a domestic unit actually spends most of its running hours.

R32 is the refrigerant behind the numbers. It carries more capacity per kilogram of charge than R410A and has a substantially lower global warming potential, so an 8.9 cc circuit needs less charge for the same duty. The part number also lists R410A as an accepted refrigerant, which keeps the same hardware usable where R410A is still the specified gas.

BENEFIT — what it means in your equipment

• Household split air conditioners — the mainstream 8.9 cc inverter band, which is the volume size in residential splits.
• Light commercial and multi-split systems, where part-load efficiency is what the energy label actually measures.
• Heat pump and dehumidifier duty, where the inverter keeps capacity up as ambient falls.
• Replacement and aftermarket stock — the 89 group sits between the 7.5 cc and 9.8 cc members of the same KSN/KSK family, so a customer can step up or down without changing refrigerant, mounting or service procedure.

For a distributor the commercial point is that this is a settled, high-volume displacement band with published siblings on both sides of it — not a one-off part number.

EVIDENCE — where these numbers come from

Published third-party data for this exact part number gives a cooling capacity of 2,750 W / 9,383 Btu/h with a COP of 3.82 W/W, a displacement of 8.9 cm³/rev, DC inverter supply and R32/R410A refrigerant, on a rotary (single-cylinder) compressor for air conditioning duty.

GMCC's own rotary catalogue does not list KSN89D21UER31 itself, but it does list the immediate relatives of the same 89 group under the section heading "GREEN REFRIGERANT COMPRESSOR — R32/R410A — SEE R60 Test Condition: SEER 60 — DC Inverter Single Cylinder": KSK89D32UEZA31 at 8.9 cm³/rev with 2,795 W / 9,537 Btu/h, 728 W input and COP 3.84; and KSK89D35UEZ3 at 8.9 cm³/rev with 2,790 W / 9,519 Btu/h, 715 W input and COP 3.90. Those rows confirm the 8.9 cc band, the R32/R410A refrigerant listing and the DC inverter single-cylinder class this part number belongs to.

Two things we will not paper over. First, the 2,750 W figure is published by third-party distributors, not by GMCC for this part number — the official catalogue row for KSN89D21UER31 itself is not in the copy we hold, so treat 2,750 W as the documented rating to be confirmed against the nameplate, with the official 8.9 cc siblings at 2,790–2,795 W as the surrounding reference. Second, no supply voltage or frequency is published for this part number, so we have deliberately not stated one — inverter compressors are supplied by a matched drive, and the drive specification is what fixes the input. Send us the label or the equipment details and we will confirm the exact variant.

15/10/2026

GMCC KSM113V4VEZ — an 11.3 cc R32 rotary in the 12,000 Btu/h class, aimed at household splits and portable air conditioners.

FEATURE — what it is

The KSM113V4VEZ is a single-phase hermetic rotary compressor from GMCC, running R32. It belongs to GMCC's 113 displacement group, and the model number carries the size: 113 = 11.3 cm³/rev. It is a capacitor-run machine on a 220–240 V, 50 Hz single-phase supply, in the compact vertical body that rotary compressors are known for.

ADVANTAGE — what it does better

R32 gives you more capacity per kilogram of refrigerant than R410A and a much lower global warming potential, so an 11.3 cc circuit needs less charge for the same duty. And the 113 group is a settled, well-documented platform rather than a one-off: GMCC's own rotary catalogue lists the 113 part numbers at 11.3 cm³/rev with ratings of 3,415 W (11,652 Btu/h) and 3,450 W (11,771 Btu/h) and a 70/250 µF/V run capacitor. That is what "12,000 Btu/h class" actually means when you have to match a machine on the bench.

Electrically it is simple — a run capacitor and a contactor are the whole bill of materials — and because the whole group shares one displacement and one refrigerant, stepping a customer between sizes does not change the platform or the service story.

BENEFIT — what it means in your equipment

• Household split air conditioners — the natural 12,000 Btu/h (1 ton) room-unit duty.
• Portable and window air conditioners — the same group is specified across portable platforms.
• Replacement and aftermarket stock — one part number covers a large installed base of 1-ton machines.
• Panel and process cooling loads where a single-phase 11.3 cc rotary is the right size.

For a distributor the commercial point is the size ladder: 11.3 cc sits just above the 10.6 cc and just below the 12.0 cc members of the same KSM family, so you can move a customer up or down a step without touching the refrigerant or the mounting.

EVIDENCE — where these numbers come from

The refrigerant, displacement, phase count, supply options, capacity band and application come from our own GMCC article for KSM113V4VEZ (qishanrcompressor.com, 14 Oct 2026): "Every documented part number in the 113 displacement group is rated 11.3 cm3/rev on R32, and every one is a single phase machine, on either 220 to 240 V 50 Hz or 115 V 60 Hz. Published capacity for the group runs from 3,410 W to 3,465 W, roughly the 12,000 Btu/h class used in household splits and portable air conditioners."

GMCC's own rotary compressor catalogue lists the 113 siblings at 11.3 cm³/rev with 3,415 W / 11,652 Btu/h and 3,450 W / 11,771 Btu/h and a 70/250 µF/V run capacitor — which corroborates those group figures. Our own product sheet for KSM113V01VDZ3, the other documented 220–240 V member of the group, reads "Refrigerant: R32 | Displacement: 11.3 cm³/rev | Voltage: 1φ, 220-240V | Capacity: 3410 W / 11635 Btu/h | Application: air conditioner".

Two things we will not paper over. First, the wattages above are the 113 group's published values; we have not been handed a model-specific capacity curve for KSM113V4VEZ, so treat the group band as the honest range rather than a single guaranteed number. Second, the group also ships in a 115 V / 60 Hz version — so check the nameplate before you order. Send us the label or the machine details and we will match the exact variant.

14/10/2026

🇩🇪 Live from Germany

We are at Chillventa with the full range of refrigeration oils on the stand.

Interest is strongest in our cost-effective lubrication solutions. Cost control is in every conversation, and the range is priced for it.

Cooperation intentions have come in as well. Several refrigeration equipment clients, mostly from Europe, the Middle East, and Central Asia, told us they want to work with us.

If lubrication cost is on your list, come to booth 8-620 or send us a message.

14/10/2026

GMCC KSM120V2UFT — a 12 cc R32 rotary rated 4,120 W at a COP of 3.8, sized for heat-pump work.

FEATURE — what it is

The KSM120V2UFT is a fixed-speed hermetic rotary compressor from GMCC, running R32 on a single-phase 220–240 V supply. Displacement is 12 cm³/rev, and the model number carries it: the last three digits read 120 = 12.0 cm³/rev. Rated capacity is 4,120 W with a COP of 3.8 W/W. It is a vertical rotary built for continuous heating duty, and it sits in a three-step family — KSM106 at 3.6 kW, KSM120 at 4.1 kW, KSM140 at 4.7 kW — which is how you pick the size your circuit needs.

ADVANTAGE — what it does better

R32 is the point. For the same physical envelope you get more capacity per unit of refrigerant than R410A, and a far lower global warming potential — so a 4.1 kW circuit is built with less charge and a smaller carbon footprint. A COP of 3.8 W/W is a strong figure for a fixed-speed machine: it means the compressor will not be the weak link when your heat pump has to hit a seasonal efficiency target.

Rotary construction keeps it compact and quiet — fewer moving parts, no reciprocating imbalance — and easy to mount inside a packaged heat pump or outdoor unit. Being fixed speed, it is also simple to control: a contactor and a run capacitor (35/370 µF/V per distributor data) is the whole electrical bill of materials.

BENEFIT — what it means in your equipment

• Air-source and pool heat pumps — 4.12 kW on a single-phase 220–240 V supply, which is exactly what a domestic hot-water or pool heat pump circuit is looking for.
• Residential and light commercial air conditioning — a direct rotary replacement part.
• Dehumidifiers and process drying — the same envelope, no refrigerant change.
• Retrofit stock — because the 106/120/140 sizes step in roughly 0.5 kW increments, three SKUs cover a whole product line.

For a service distributor, that is one single-phase R32 rotary that drops into the heat-pump cabinets your customers already run.

EVIDENCE — where these numbers come from

The refrigerant, displacement, capacity, supply voltage, COP and application come from our own GMCC product sheet for KSM120V2UFT: "Refrigerant: R32 | Displacement: 12 cm³/rev | Capacity: 4120W | Voltage: 1φ, 220-240V | COP: 3.8W/W". The 12 cm³/rev figure is independently consistent with the rest of the family — distributor listings for the same series give KSM106 at 3.6 kW and KSM140 at 4.7 kW, and those scale linearly with displacement.

Distributor data supplies what our own sheet does not carry: 1φ 50 Hz 220 V, a rated heating duty of 4,120 W (14,057 Btu/h) at ASHRAE conditions, 1,085 W power input, a 35/370 µF/V run capacitor, an overall height of 290 mm with suction and discharge pipe bores of 12.9 mm and 8.1 mm, and the application note "pool heat pump". One difference worth naming: our own sheet files this model under "Air Conditioner", while distributors specify pool heat pumps — the same machine described from the cooling side and from the heating side. Distributors also sell it as a 1.5 HP class unit; our sheet rates it in watts, so we quote watts and flag the horsepower claim.

Datasheet, connection drawing or stock availability — send us a message and we will come back with the details.

13/10/2026

Embraco EMY3130Z — one part number that covers both the freezer side and the cooler side of your service van.

FEATURE — what it is

The EMY3130Z is a fixed-speed (ON/OFF) hermetic reciprocating compressor from Embraco's EM family, built in China for the Asian market. It runs R134a on a 220–240 V / 50 Hz single-phase supply. Displacement is 11.14 cm³. The motor is CSIR (capacitor-start, induction-run) with low starting torque, and locked-rotor current is 16.04 A. It carries 210 mL of ester (POE) oil at ISO 22 viscosity and returns through a capillary tube. Wiring diagram SM07.

The part number is readable once you know Embraco's naming: EM = compressor family, Y = third generation, 3 = L/MBP envelope with low starting torque, 130 = capacity code (about 300 kcal/h at 50 Hz), Z = R134a.

ADVANTAGE — what it does better

One compressor, two duties. Because the envelope is L/MBP, the same part number serves low-back-pressure freezing and medium-back-pressure chilling — you stock one model instead of two. Officially it produces 154 W at −35 °C, 196 W at −30 °C and 278 W evaporating; at the ASHRAE LBP32 check point (−23.3 °C evaporating / 54.4 °C condensing) it delivers 320 W of cooling at a COP of 1.50 W/W.

Being an LST/CSIR machine, it starts reliably against the pressures a freezer is still holding at shut-down, and it keeps working right across the MBP band (−15 to 0 °C) where display cases and bottle coolers live. R134a means no flammable-refrigerant service restrictions on site, and the ester/POE charge is already the correct lubricant for an HFC circuit — no oil-change surprises after a repair.

BENEFIT — what it means in your equipment

• Bottle coolers and beverage cabinets — holds product temperature steadily in the MBP band.
• Ice cream freezers and frozen food islands — the LBP end of the envelope, down to −35 °C evaporating.
• Household refrigerator and freezer replacement — a direct service part for the repair trade.
• Water coolers — small, capillary-tube friendly, quiet in a confined cabinet.
• Vending machines — compact footprint with the starting torque to survive repeated door and pull-down cycles.

If you are a distributor or an OEM buyer, this is one SKU that covers both the frozen and the chilled side of your van, on a refrigerant your technicians already know and with an oil charge that matches the circuit.

EVIDENCE — where these numbers come from

Every figure above is taken from Embraco's official Asia Pacific Catalogue — Compressors (Nidec Global Appliance): the displacement, envelope, torque, motor, LRA and −35/−30/−25 °C capacities from the page 48 table headed "220-240 V 50 Hz | R134a | LBP"; the 320 W check-point capacity, 1.50 W/W efficiency, 210 mL ester/ISO 22 oil charge, capillary-tube expansion device and SM07 wiring from the page 49 check-point table (evaporating −23.3 °C / condensing 54.4 °C); and the application list — "EM: Bottle coolers, ice cream freezers, household replacement, water coolers and vending machines" — from the family overview on page 5.

Distributor listings usually describe this compressor as 1/3 HP. One European distributor instead prints 1/2 HP. Embraco rates the model in watts, so we publish the watt figures and leave the horsepower claim flagged rather than merging two incompatible numbers.

Datasheet, wiring diagram (SM07) or stock availability — send us a message and we will come back with the details.

12/10/2026

Mitsubishi KB122YPEC — a fixed-speed R134a rotary that will hold 81 °C condensing.

**FEATURE — what it actually is**
A hermetic rotary compressor from Mitsubishi Electric (Guangzhou) Compressor Co., Ltd. — MGC — in the KB series, which the manufacturer catalogues under R134a.
• Fixed speed, single rotary.
• 12.2 cm³/rev displacement — the three-digit field is the displacement × 10.
• R134a: the model code's refrigerant letter B maps to R134a in the manufacturer's own legend.
• Power supply letter Y: 380–415 V / 50 Hz or 460 V / 60 Hz, three phase.
• 9.9 kg with a 270 cm³ oil charge.

**ADVANTAGE — what it does better**
• 1,405 W of cooling from 500 W of input → COP 2.81, published at 54.4 °C condensing / 7.2 °C evaporating, 27.8 K superheat, 8.3 K subcooling, drawing 2.30 A.
• An 81 °C condensing ceiling — that is the number that puts the KB series into heat pump water heating, not just comfort cooling.
• Two supply variants on the same frame: the G variants are 220–240 V single phase, the Y variants are 380–415 V three phase, at the same displacement.
• A published operating envelope, not a marketing range: condensing 28–81 °C, evaporating −10 to +31 °C, compression ratio below 8, maximum condensing pressure 2.60 MPa.
• Separate duty limits: maximum discharge gas temperature is 115 °C, reduced to 110 °C in heat pump and dehumidifier duty.
• Start duty specified: minimum starting voltage is 85 % of rated at 1.67 MPa balancing pressure.

**BENEFIT — what it means in your equipment**
• Heat pump water heating and dehumidification are the duties the manufacturer itself names for this family — and the discharge-temperature limit is separately written for exactly those duties.
• One displacement, two supply classes: a single-phase and a three-phase variant, so the same pipe layout carries across two markets.
• Clean starts on three phase at the balancing pressure that actually matters in service.
• Installs like a rotary, within stated limits: no more than 5° of inclination, no more than 0.8 mm of piping vibration.
• Life expectation is published, not implied: under 170,000 total on/off cycles, at most 10 starts per hour, and restart only after pressure equalisation (over 3 minutes).
• Where it fits: heat pump water heaters, dehumidifiers, display cabinets, and light commercial refrigeration above the frozen range.
• Where it does not fit — stated rather than hidden: low-temperature freezing (the envelope starts at −10 °C evaporating), inverter duty (the KB series is fixed speed), or any load above roughly 1.4 kW at catalogue conditions — step up to the RB series at 15.4–24.7 cm³/rev.
• Brand new, original packaging; datasheet on request.

**EVIDENCE — where each figure comes from**
• Manufacturer catalogue, R134a rotary table: the 12.2 cm³/rev row (KB122VFNC, the published anchor for this displacement class — the KB122YPEC code itself carries no separate catalogue row) is printed at 400 W motor rating, 1,405 W cooling, 500 W input, 2.30 A, COP 2.81, 9.9 kg, 270 cm³ oil, with the test conditions quoted above as a footnote.
• The displacement field decodes by rule, not by guess: four catalogue rows carry both a three-digit field and a printed displacement — KB065 → 6.5, KB092 → 9.2, KB122 → 12.2, KB134 → 13.4 — and all four agree at ÷10.
• Model code legend, same catalogue: supply letters include V = 220–240 V/50 Hz single phase, G = 220–240 V/50 Hz or 230 V/60 Hz, Y = 380–415 V/50 Hz or 460 V/60 Hz three phase; refrigerant letter B = R134a.
• Operating limits page, same catalogue: every envelope and life figure quoted above.
• One caution we will not paper over: our own shop page for the KB122 class prints 1,685 W / 560 W / COP 3.01 with no rating condition. The manufacturer figure is 1,405 W / 500 W / COP 2.81 at the conditions stated — a 19.9 % capacity gap that cannot be closed without the rating point. Quote the manufacturer figure, and ask for capacity at your own design point.

Need pricing, a datasheet or current stock? Message us — we ship worldwide.
🌐 qishanrcompressor.com

10/10/2026

Mitsubishi MVB42FCBMC-L — 14,380 W of heating capacity, backed by a third-party EN 14825 test report.

**FEATURE — what it actually is**
A fully hermetic rotary piston compressor built by Mitsubishi Electric (Guangzhou) Compressor Co., Ltd. — MGC, a wholly owned subsidiary of Mitsubishi Electric Corporation.
• Inverter driven — variable speed, not fixed.
• 42.1 cm³/rev displacement.
• R32 refrigerant — a single-component HFC, A2L classified.
• Named in an EN 14825 test report as the compressor inside a three-phase air-to-water heat pump.

**ADVANTAGE — what it does better**
• 14,380 W rated capacity from 4,400 W input → COP 3.27 at the rated point (14,380 ÷ 4,400 = 3.2682, printed as 3.27).
• 341.57 W of capacity per cm³/rev — a large single rotary, so a compact shell carries the output.
• Measured part-load behaviour: in the host heat pump the unit holds 13.737 kW at −9.99 °C with the compressor at 85 Hz, and at 6.90 °C the compressor falls to 30 Hz while the unit still returns 8.816 kW. That is what the inverter buys — modulation instead of cycling.
• Seasonal performance: SCOP 4.67 on the host unit, average climate — far above the 3.27 rated-point COP, because the seasonal metric weights part load.
• More displacement without paying in efficiency: the 33-class sibling in the same report (MVB33FBBMC) rates 11,370 W at 3,570 W input, COP 3.18. Stepping up to the 42 class adds 26.5 % capacity for 23.2 % more input — the rated COP rises, not falls.

**BENEFIT — what it means in your equipment**
• Air-to-water heat pump duty is the application the manufacturer document actually supports: the report names this compressor in a unit declaring 15.752 kW design heating capacity at −10 °C outdoor.
• A sizing step above the 33-class rotaries for monobloc and ATW platforms, without stepping into a scroll.
• Lower running cost where a heating season actually sits — the report shows operation between 30 Hz and 85 Hz, with a 39 Hz control floor at one condition.
• A refrigerant that behaves on a leak: R32 is single-component, so it does not fractionate. It is A2L, so the circuit needs an A2L-aware design review.
• Where it fits: air-to-water heat pumps, light-commercial and multi-split outdoor units, and chilled-water or process cooling subject to a cooling map. Not for low-temperature freezing or blast freezing — no low-temperature rating is published.
• Brand new, original packaging; datasheet package on request.

**EVIDENCE — where each figure comes from**
• Tier 1 — EN 14825 test report, project 64.181.20.05244.01 Rev.00, dated 2020-12-03, issued by TÜV SÜD Certification and Testing (China) Co., Ltd., Guangzhou Branch. Appendix IV construction data form names the compressor type MVB42FCBMC-L, manufacture Mitsubishi Electric (Guangzhou) Compressor Co., Ltd., rated capacity 14,380 W, refrigerant R32.
• Tier 1 — MGC corporate profile: registered capital USD 122.22 million, site area about 63,000 m², more than 3,000 employees, annual compressor capacity 8 million units.
• Tier 3 — the model's own product page: displacement 42.1 cm³/rev, input 4,400 W, 48,892 BTU/h, COP 3.27.
• Cross-check: 14,380 ÷ 4,400 = 3.2682, which rounds to the printed 3.27 — capacity, input and COP sit on the same page and agree.

One caution we would rather state than hide: the 48,892 BTU/h figure uses a conversion factor of 3.4 rather than 3.412, so the imperial number runs about 0.35 % light. Treat 14,380 W as the rated capacity. Mass, oil charge, terminal voltage band and running current are not published for this model, and we will not quote them from a sibling.

Need pricing, a datasheet or current stock? Message us — we ship worldwide.
🌐 qishanrcompressor.com

09/10/2026

GMCC KSK103D32UEZ31 — 11,072 BTU/h from a 10.3 cc DC inverter rotary that takes two refrigerants.

**FEATURE — what it actually is**
A hermetic single-cylinder rotary compressor from GMCC (Midea Group), built for air conditioning.
• DC inverter drive — the motor varies speed instead of switching on and off.
• 10.3 cm³/rev displacement.
• Rated for both R32 and R410A — one part number covers two refrigerant programmes.
• Single phase, 220–240 V class, 50 Hz (GMCC's R32 DC-inverter line-up).

**ADVANTAGE — what it does better**
• 3,245 W (11,072 BTU/h) of cooling at a COP of 3.82 — roughly 850 W of input for 11,072 BTU/h of output.
• Dual refrigerant: the same compressor is rated for R32 and for R410A, so you don't change the compressor when you change the refrigerant programme.
• R32 gives you a little more capacity out of the same hardware — distributor data lists 11,070 BTU/h on R32 against 10,700 BTU/h on R410A.
• Inverter control means no hard start every cycle: the motor ramps, so the unit holds the setpoint and draws less at part load.
• DC inverter rotaries have been GMCC's core volume product since 2003 — this is a mature platform, not a new experiment.

**BENEFIT — what it means in your equipment**
• Sized for the 9,000–12,000 BTU/h residential class — a straight fit for single-split and multi-split outdoor units.
• One SKU covers both refrigerant programmes: less stock on the shelf, fewer part numbers to manage.
• Steady room temperature instead of an on/off swing, and a lower bill at part load.
• Low-noise, low-vibration rotary design — fewer callbacks about noise.
• Applications: residential split air conditioners, multi-split and VRF systems, heat pumps, and light-commercial condensing units.
• Brand new, original packaging, datasheet on request — production-grade stock.

**EVIDENCE — where the numbers come from**
• GMCC parameter data published for KSK103D32UEZ31: hermetic DC inverter single-cylinder rotary, R32 / R410A, 10.3 cm³/rev, cooling capacity 3,245 W / 11,072 BTU/h, COP 3.82 W/W.
• Cross-checked against GMCC's own catalogue row for the sibling 10.3 cm³ model (KSK103D33UEZ3): 3,270 W / 11,158 BTU/h at 835 W input, COP 3.90 — same displacement class, same capacity-to-input ratio.
• Distributor data confirms 220 V nominal operation and quotes 11,070 BTU/h on R32 versus 10,700 BTU/h on R410A at 822 W.
• GMCC corporate and manufacturing data from its official catalogue: DC inverter technology developed in-house since 2003; 2,700+ patents, 5 R&D centres and 5 plants; every compressor passes 81+ inspections and 2,000+ hours of continuous running; designed for 10 years of operation under extreme conditions.

Need pricing, a datasheet or current stock? Message us — we ship worldwide.
🌐 qishanrcompressor.com

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