Drain pump PSB-12/1212V, PSB-7A, PLD-12/7220/48,SP-4820 for Midea & Gree AC ceiling cassette,
Price range: $0.97 through $3.52 ( Not real price )
OEM Condensate Lift Drain Pump PSB-7A / PSB-12 / PLD-12 for Midea & Gree Ceiling Cassette & Ducted Air Conditioners | ABS Anti-Corrosion Housing, Copper Motor, 220V AC Low-Noise Automatic Water Pump, Max 1.2m Vertical Lift, Plug-and-Play Replacement HVAC Drainage Part to Prevent Ceiling Water Overflow & Mold Damage
This product is an AC condensate lift drain pump (PSB-12/1212V, PSB-7A, PLD-12/7220/48,SP-4820 series) — a built-in HVAC spare part designed exclusively for Midea & Gree ceiling cassette, ducted air handlers to forcibly pump AC condensate uphill when gravity drainage fails.
What it is
It is a compact electric water pump assembly, with multiple interchangeable OEM variants (A1-A15 models) matching Midea duct/cassette units and Gree ceiling machines. It integrates a motor, impeller, mounting bracket, wiring harness, and optional float safety switch to automatically drain condensed water generated by AC evaporator coils during cooling/dehumidification cycles.
Problems it solves
- Eliminates gravity drainage limitations: Moves condensate vertically up to 1.2m (PSB-12) or 0.7m (PSB-7A) when drain pipes sit higher than the AC drain pan.
- Prevents ceiling water damage, mold, and wall staining from condensate overflow caused by flat piping slopes or blocked gravity lines.
- Enables slim, shallow false ceiling installations by removing the need for downward pipe gradient, preserving indoor floor height.
- Resolves long horizontal drain pipe pressure loss that slows natural water flow in commercial retrofits.
- Stops stagnant water buildup in drain pans that breeds bacteria, algae, and unpleasant odors inside air conditioning systems.
Product Information
| Category | Core Details |
|---|---|
| Official Product Name | Built-in Condensate Drain Lift Pump for Midea / Gree Ceiling Cassette & Ducted Air Conditioners |
| Main OEM Models | PSB-12 (1.2m lift), PSB-7A / PSB-7 (0.7m lift), PLD-12 (Gree cassette variant); sub-models A1–A15 for unit-specific matching |
| Operating Voltage | Standard AC 220–240V 50/60Hz; 12V DC low-voltage versions available |
| Power Consumption | 10W–12W low-energy motor |
| Max Lift Height | PSB-12 / PLD-12: 1200mm; PSB-7 / PSB-7A: 700mm |
| Minimum Flow Rate | ≥500ml/min continuous drainage |
| Main Compatible Brands | Midea (MD) ducted multi-split, ceiling cassette; Gree (GL) ceiling cassette |
| Construction Materials | Anti-corrosion ABS pump housing, copper motor winding, rubber waterproof wiring sleeve, metal mounting bracket, PPS wear-resistant impeller |
| Assembly Components | Pump motor body, outlet nozzle, pre-wired cable harness, fixed mounting plate, optional Float overflow safety switch (B1/B2 spare parts) |
| Item Condition | Brand new OEM replacement, fully pre-assembled for plug-and-play swap |
Product Features
- Automatic Float Activation: Built-in water level sensor triggers pump only when condensate accumulates; auto-shuts off once drain pan empties for zero manual operation.
- Multi-Variant OEM Fit: 15 A-series sub-models perfectly match Midea duct/cassette and Gree ceiling units, no universal modification required.
- Compact Slim Build: Small footprint fits tight ceiling voids, compatible with shallow 10–15cm false ceilings.
- Low Noise & Low Vibration: Optimized impeller balance reduces running hum; quiet operation for offices, bedrooms, retail spaces.
- 220V Standard AC Compatibility: Global household/commercial mains voltage support; 12V DC variants for low-voltage HVAC setups.
- High Anti-Corrosion Build: ABS plastic pump housing + PPS impeller resists long-term condensate water erosion and algae buildup.
- Easy Plug-and-Play Replacement: Pre-terminated wiring harness matching original AC unit connectors, fast technician installation under 10 minutes.
- Overflow Protection Optional: Pair with B1/B2 float switches to cut AC power and prevent ceiling flooding if pump malfunctions.
- Energy Efficient: 10–12W low wattage motor with negligible extra power draw on air conditioning systems.
- Long Service Life: Factory-tested for 100,000+ continuous drainage cycles under standard humidity conditions.
Using Scenarios
HVAC technicians, commercial property managers, residential renovators, and facility maintenance teams require this pump in 5 common installation-limited situations:
- Residential Retrofit Ceiling Cassette AC: Older apartments with flat ceiling framing where gravity drain pipes cannot slope downward; prevents ceiling water stains from condensate backup.
- Commercial Office Duct AC Installs: Open-plan offices with long horizontal drain runs over 10m that lose gravity pressure; pump maintains consistent drainage across extended piping.
- Low-Ceiling Boutique / Café Renovations: Retail spaces with restricted ceiling height where sloped drain piping would lower ceilings excessively; slim pump preserves usable vertical space.
- Basement / Lower-Floor AC Indoor Units: AC indoor cassettes installed below building main drain lines; pump lifts condensate upward to reach upper-level plumbing outlets.
- Midea/Gree Multi-Split After-Sales Repair: Faulty original factory drain pumps on existing duct/cassette units; OEM-matched replacement restores full drainage function without unit modification.
FAQ
What brand air conditioning units does this PSB-12/PLD-12 drain pump support?
Our OEM condensate lift pumps are engineered as direct factory replacements for Midea ducted multi-split & ceiling cassette AC, plus Gree ceiling cassette units. Manufactured in Foshan with strict OEM matching standards, each sub-model (A1–A15) aligns perfectly with original internal wiring and mounting points, eliminating cutting or pipe modification during replacement. We maintain a 100% 3-month positive review rate thanks to precise brand compatibility and durable ABS anti-corrosion construction.
What vertical lift capacity do the PSB series pumps deliver?
The PSB-12 and PLD-12 variants offer a maximum 1200mm vertical lift for ceiling cassette units, while PSB-7/PSB-7A provides 700mm lift for slim Midea duct air handlers. Our pumps use optimized PPS wear-resistant impellers delivering ≥500ml/min stable flow, outperforming generic unbranded pumps that struggle with uphill condensate transport and cause ceiling water damage.
Does this condensate pump run quietly for bedroom and office installations?
Yes. Our factory-balanced low-vibration motor design keeps operating noise minimal for residential and commercial indoor spaces. Unlike cheap aftermarket pumps with loud rattling impellers, our integrated damping structure reduces vibration transfer into ceiling panels, making the pump nearly unnoticeable during AC cooling cycles. All units undergo noise testing before shipping to guarantee quiet performance.
Is this pump plug-and-play for DIY HVAC replacement?
Absolutely. Every pump ships with a pre-wired cable harness matching original Midea/Gree unit connectors, a pre-drilled metal mounting bracket, and nozzle fittings for direct hose connection. Most HVAC technicians complete full swap installation in under 10 minutes, and homeowners with basic electrical knowledge can safely replace faulty old pumps without specialized tools. We also supply separate B-series float overflow switches as add-ons for extra leak protection.
What materials are used to build these drain pumps for long service life?
We construct each pump body from anti-aging ABS plastic paired with copper motor windings and PPS corrosion-resistant impellers, engineered to withstand constant contact with humid condensate water and resist algae buildup. Internal components pass 100,000-cycle factory durability testing, delivering far longer operational life than low-cost plastic pumps with thin plastic motor housings prone to cracking and water leakage.
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