💨 LX AP900-V2 1.2 HP Spa Air Blower – 900W Maximum Performance for Swim Spas & Large Installations

The most powerful in the AP series – delivering exceptional 900W bubble therapy for swim spas, large hot tubs, and demanding applications 🫧

📋 Product Overview

The LX AP900-V2 is the flagship model in LX’s AP series, delivering maximum 900W (1.2 HP) power for swim spas, large hot tubs, and demanding spa pool installations. Featuring LX’s proven double impeller (V2) design, this powerhouse blower produces exceptional airflow of up to 2.5 m³/min with maximum air pressure of 2.6m – providing vigorous, therapeutic bubble action across extensive jet arrays of 20-40 jets.

Particularly recommended for swim spas where substantial airflow volume is essential, the AP900-V2 combines raw power with the refined air delivery characteristics of double impeller technology. Built with a reinforced, heat-resistant ABS plastic housing and powered by a dedicated low-noise excitation motor with Class F insulation, it delivers serious performance whilst maintaining noise levels under 74 dB.

The V2 designation indicates LX’s upgraded double impeller motor design, featuring improved carbon brushes rated for approximately 1,500 hours of operation whilst maintaining full backward compatibility with earlier AP900 models. As the largest non-heated blower in the AP range, it’s the professional choice for applications where maximum bubble coverage is the priority.

⭐ Key Features

• ✅ Maximum 900W (1.2 HP) Double Impeller Motor – The most powerful in the AP series, delivering exceptional airflow up to 2.5 m³/min with maximum pressure of 2.6m for demanding applications
• ✅ Extensive 20-40 Jet Capacity – Capable of driving extensive jet arrays simultaneously, providing comprehensive bubble coverage for swim spas and large hot tubs
• ✅ Swim Spa Recommended – Particularly suited to swim spa applications where substantial airflow volume is required across large water surfaces
• ✅ Optimised Quiet Operation – Despite maximum power output, maintains noise levels under 74 dB through advanced double impeller design and airflow optimisation
• ✅ Upgraded V2 Motor Technology – Latest generation double impeller motor with improved carbon brushes rated for approximately 1,500 hours of operation, fully compatible with older AP900 models
• ✅ Class F Motor Insulation – Premium insulation rated for temperatures up to 155°C with VDE/UL approved thermal protection, ensuring long-term reliability
• ✅ Pneumatic Switch Compatible – Optional connection to pneumatic switch for convenient one-button operation from the spa topside
• ✅ Flexible Mounting Options – Angled mounting bracket enables installation either upright or on the side to suit various cabinet configurations
• ✅ Plug-and-Play Installation – Standard 1″ threaded union (32-33mm) and 1.5m cable with AMP-style connector for straightforward replacement applications

🔧 Technical Specifications

Specification	Details
Brand	LX Whirlpool
Model	AP900-V2
Product Type	Spa Air Blower
Motor Power	900W (1.2 HP)
Voltage	220-240V AC (120V option available)
Frequency	50/60 Hz
Current Draw (230V)	4.5A
Maximum Airflow	2.5 m³/min
Maximum Air Pressure	2.6m (0.022 MPa)
Noise Level	<74 dB(A)
Recommended Jet Capacity	20-40 jets
Impeller Type	Double Impeller (V2) – Two-Stage
Housing Material	Reinforced Heat-Resistant ABS Plastic
Motor Insulation	Class F
Thermal Protection	VDE/UL Approved
Internal Fuse (230V)	7.5A
Internal Fuse (110V)	10A
Carbon Brush Life	~1,500 hours
Union Connection	1″ Threaded (32-33mm OD)
Union Outlet Diameter	Internal: 40mm, External: 47mm
Cable Length	1.5m
Connector Type	AMP-style plug / Ring terminals (Mini J&J adapter available)
Dimensions (L × W × H)	270 × 170 × 170mm
Pneumatic Control	Available (integrated pneumatic switch connection)
Certifications	CE, 3C, TÜV, RoHS
Suitable For	Swim Spas, Large Hot Tubs, Spa Pools
Warranty	2 years (excluding carbon brushes)

🎯 Real World Applications

🏊 Swim Spa Applications

The AP900-V2 is particularly recommended for swim spas where substantial airflow volume is essential across large water surfaces. With capacity for 20-40 jets and maximum airflow of 2.5 m³/min, it delivers the vigorous bubble action needed for effective hydrotherapy in swim spa environments. The powerful 2.6m maximum pressure ensures consistent bubble intensity even with the extended pipe runs typical in swim spa installations.

🛁 Large Hot Tub & Party Spa Enhancement

Perfectly matched to 8-12+ person hot tubs and large party spas requiring maximum bubble massage capability. The extensive 20-40 jet capacity ensures comprehensive coverage across multiple seating zones, loungers, and therapy stations simultaneously. Ideal for hospitality installations, holiday lets, and large family spas where impressive bubble performance is essential.

♨️ Spa Pool & Commercial-Grade Residential

Designed for the nozzle systems in larger spa pools where extensive jet arrays require substantial airflow volume. The robust 900W motor handles the back-pressure from complex pipe networks and deep installations without compromising performance. Whilst not suitable for commercial continuous-duty applications, it’s the ideal choice for demanding residential and light commercial installations.

💆 Serious Hydrotherapy Installations

For dedicated hydrotherapy applications where maximum therapeutic bubble massage is the priority. The powerful airflow combined with the softer, more comfortable air delivery of the double impeller design creates an optimal environment for muscle relaxation, stress relief, rehabilitation therapy, and athletic recovery.

🔄 Blower Replacement & Upgrade

The universal 1″ threaded union and AMP connector make the AP900-V2 an excellent direct replacement for worn or failed high-capacity blowers. Commonly found as OEM equipment in Chinese spa brands including Danz Spas, Spa Serve, AMC Winer, Cascade, MAAX, Monalisa, and Trinity. The V2 motor is fully backward compatible with earlier non-V2 models.

🏡 Cabinet Heat Recovery Tip

A carefully positioned non-heated blower in the hot tub cabinet will draw warm air from pumps and heating equipment, effectively pre-warming the air before it reaches the jets. This simple positioning strategy can enhance bubble comfort without the need for a heated blower unit, making the most of waste heat already present in your spa cabinet.

🛠️ Installation Considerations

⚠️ Professional Installation Recommended

All electrical parts must be installed by a professional and trained spa mechanic. Incorrect installation may invalidate warranty.

⚡ Electrical Requirements

• Supply Voltage: 220-240V AC (120V option available)
• Frequency: 50/60 Hz (universal)
• Current Draw: 4.5A at 230V
• Circuit Requirements: Ensure adequate circuit capacity for 900W continuous load
• Grounding: The air blower must be properly grounded to prevent electrical shock or injury
• Pin-Out Check: Always verify the pin-out diagram on your spa pack before wiring

🔧 Mounting & Positioning

• Orientation: Angled mounting bracket allows upright or side-mounted installation
• Location: Place in a dry, well-ventilated area to prevent moisture damage
• Ventilation: Ensure adequate airflow around the blower – particularly important for 900W output
• Access: Position for easy access for future maintenance and carbon brush replacement
• Cabinet Positioning: Consider placement to utilise waste heat from pumps for pre-warmed air

🔌 Connection Details

• Union Size: 1″ threaded (32-33mm OD)
• Union Outlet: Internal diameter 40mm, external 47mm with threaded ring connection
• Unions Included: Comes with 2 rings plus 1″ output connector (33.5mm) or 32mm output
• Cable Length: 1.5m with AMP-style connector or ring terminals
• Adapter Options: Mini J&J adapters available separately if required
• Pneumatic Control: Integrated connection for optional pneumatic switch operation
• Glueless Option: Compatible with bayonet union kit for adhesive-free installation

⚠️ Critical Safety Notes

• Do NOT operate blower immediately after gluing unions – PVC glue fumes entering the blower can cause explosion if motor is started. Either connect the blower while already running, or wait at least 1 hour for fumes to dissipate
• Check one-way valves – If replacing a failed blower due to water ingress, verify the air line check valve is functioning correctly before installing the new unit
• Do NOT block outlet – Operating with a blocked outlet will cause air temperature to rise rapidly
• Cut power before inspection – Always disconnect electrical supply before any maintenance
• Voltage matching – Ensure replacement voltage matches your existing system (230V vs 120V)
• 32mm socket connection – Ensure securely fitted to prevent air leaks
• Not for commercial use – Designed for residential and light commercial applications only

🔍 Regular Maintenance Tips

• Keep the area around the blower clean and free from debris
• Ensure proper ventilation around the blower to prevent overheating
• Keep the blower dry and protected from direct water contact
• Regularly inspect connections for signs of wear or damage
• Check carbon brushes at regular service intervals (rated for ~1,500 hours)

🏆 Why Choose the LX AP900-V2

• ✅ Maximum Power in the AP Range – At 900W (1.2 HP), the AP900-V2 is the most powerful non-heated blower in LX’s AP series, purpose-built for demanding applications
• ✅ Swim Spa Specialist – Particularly recommended for swim spas where substantial airflow volume across large water surfaces is essential
• ✅ Superior Double Impeller Technology – The V2 designation indicates LX’s advanced two-stage impeller design, delivering softer, more comfortable airflow with significantly reduced high-frequency noise
• ✅ Extended Motor Life – Latest generation motor with Class F insulation, VDE/UL approved thermal protection, and improved carbon brushes rated for approximately 1,500 hours of operation
• ✅ Proven Brand Reliability – LX Whirlpool (Guangdong LX Pump Co., Ltd.) is one of China’s largest manufacturers of spa pumps and blowers, supplying major hot tub brands worldwide with annual production capacity exceeding 2 million units
• ✅ Comprehensive Certification – CE, TÜV, 3C, and RoHS certified for peace of mind across UK, European, and international installations

🛒 Why Buy From Parts4Tubs?

• ✅ UK-Based Specialist Supplier – Dedicated expertise in spa and hot tub components with deep product knowledge
• ✅ Expert Technical Advice – Our team can help you confirm compatibility, check pin-out diagrams, and answer installation questions
• ✅ Fast UK Delivery – In-stock items dispatched promptly for quick turnaround
• ✅ Competitive Pricing – Great value on genuine quality components
• ✅ Genuine Manufacturer Parts – Authentic LX Whirlpool products, not grey market alternatives
• ✅ Dedicated Customer Support – Responsive assistance before, during, and after your purchase
• ✅ Secure Online Ordering – Safe, encrypted transactions for peace of mind
• ✅ Easy Returns Policy – Hassle-free returns if the product isn’t right for your application

✨ Summary

The LX AP900-V2 represents the pinnacle of the AP series, delivering maximum 900W (1.2 HP) power for swim spas, large hot tubs, and demanding installations where comprehensive bubble coverage is essential. With capacity for 20-40 jets, airflow up to 2.5 m³/min, and maximum pressure of 2.6m, it’s particularly recommended for swim spa applications where substantial air volume is required. CE, TÜV, and RoHS certified, backed by a 2-year warranty, and featuring LX’s proven double impeller technology – it’s the professional choice when maximum performance matters. Order yours today and experience the ultimate in therapeutic bubble massage.

Considerations when replacing a blower

  When replacing a hot tub blower, there are a few important factors to consider. One of the most important considerations is ensuring that the voltage of the replacement blower matches the voltage of your hot tub’s electrical system. This is because using a blower with the wrong voltage can result in damage to the blower, the hot tub’s electrical system, or both. Check if the blower you are replacing is 230V or 120V – it makes a difference!   While the power of the blower is not necessarily important, it’s a good idea to select a replacement blower that has a similar power rating to your existing blower. This will help ensure that the replacement blower is capable of producing the desired air pressure and flow rate in your hot tub.   Another factor to consider when replacing a blower is the size of the blower’s outlet pipes. If the replacement blower has different pipe sizes than your existing blower, you may need to use adaptors or convertors to connect the blower to your hot tub’s plumbing. This is important to ensure that the blower is properly connected and doesn’t leak air.   In summary, when replacing a hot tub blower, it’s important to match the voltage of the replacement blower to your hot tub’s electrical system and consider the power rating and pipe sizes of the replacement blower. By selecting a replacement blower that matches these criteria and ensuring that it’s properly installed, you can help ensure that your hot tub continues to provide a relaxing and enjoyable experience.  

Don’t forget the Check Valve!

  A check valve is an important component to consider when installing a hot tub blower. A check valve is a one-way valve that allows water to flow in one direction only, preventing backflow. In a hot tub, the check valve is typically installed on the air line between the blower and the jets. This keeps the water out of your blower – last thing you want is water in your blower. There are a few reasons why a check valve is important when using a hot tub blower:

1. Prevents water from entering the blower: Without a check valve, water can backflow from the hot tub plumbing into the blower when the blower is turned off. This can cause damage to the blower and can also create a safety hazard if water comes into contact with the blower’s electrical components.
2. Maintains air pressure: A check valve helps maintain the proper air pressure in the hot tub system. Without a check valve, air can escape from the hot tub jets when the blower is turned off, reducing the water pressure and the effectiveness of the massage feature.
3. Reduces noise: A check valve can help reduce noise in the hot tub plumbing system. When the blower is turned off, water can flow backwards through the air line and create a gurgling or burping noise. A check valve prevents this noise from occurring.

In summary, a check valve is an important component to consider when installing a hot tub blower. It helps prevent water from entering the blower, maintains air pressure, and reduces noise in the plumbing system. By including a check valve in your hot tub blower installation, you can help ensure that your hot tub runs smoothly and efficiently.  

Wiring a Hot Tub Blower

          When wiring a hot tub blower, it’s important to not only follow the manufacturer’s instructions but also to check the pin out diagram on the spa pack. The pin out diagram will show you the location of the various terminals and connectors on the spa pack, which you’ll need to connect to the blower. Here are the steps to wire a hot tub blower while checking the pin out diagram on the spa pack:

1. Turn off the power to the hot tub at the circuit breaker.
2. Locate the spa pack, which is usually located near the hot tub. Look for the pin out diagram, which should be located on the inside of the access panel.
3. Determine the voltage requirements of the blower. Most hot tub blowers operate on 120 volts, but some may require 240 volts. Make sure you have the correct voltage before proceeding.
4. Connect the blower to the control system. The blower should have a set of wires that connect to the spa pack. Match the wires from the blower to the corresponding terminals on the pin out diagram. Make sure to follow the manufacturer’s instructions for the proper wiring sequence.
5. Connect the blower to the power source. The power source is usually a dedicated GFCI breaker or a GFCI outlet that is installed near the hot tub. Again, follow the manufacturer’s instructions and match the wires from the power source to the corresponding terminals on the pin out diagram.
6. Test the blower to make sure it’s working properly. Turn on the power to the hot tub and activate the blower from the control panel. The blower should start up and produce the desired amount of air.
7. Secure all wiring connections and close the access panel to the spa pack.
8. Turn on the power to the hot tub at the circuit breaker.