MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH
- Product SKU: S1157NH
- Category: CENTRAL VACUUM, Central Vacuum Systems, MD Central Vacuum
Quick Summary
The MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH is a premium built-in central vacuum system engineered to deliver powerful whole-home suction, whisper-quiet operation, and dependable long-term performance. Featuring a high-performance 120-volt motor, the SilentMaster S460r efficiently removes dirt, dust, pet hair, allergens, and everyday debris while promoting cleaner indoor air throughout your home.
Available through Authorized MD Dealer Ace Vacuums, the SilentMaster S460r combines advanced sound-reduction technology, premium filtration, and durable construction to provide exceptional cleaning performance for small to medium-sized homes using standard household electrical service.
Product Overview
The MD SilentMaster S460r 120 Volt Central Vacuum Power Unit is designed for homeowners seeking premium cleaning performance without requiring a dedicated 240-volt electrical circuit. Installed remotely in a garage, basement, or utility room, the power unit significantly reduces operating noise while delivering strong, consistent suction through your home's central vacuum piping system.
Its high-performance 120V motor provides excellent airflow for cleaning carpets, area rugs, hardwood floors, tile, laminate, luxury vinyl plank (LVP), and other sealed hard floor surfaces when paired with compatible MD hoses, electric powerheads, telescopic wands, and cleaning accessories.
The advanced filtration system captures dust, pollen, allergens, pet dander, and microscopic airborne particles, while the large-capacity dirt collection system minimizes maintenance and supports longer cleaning sessions.
Purchase confidently from Authorized MD Dealer Ace Vacuums, your trusted source for genuine MD central vacuum systems, replacement parts, and accessories.
Expert Recommendation
Our central vacuum specialists recommend the MD SilentMaster S460r for homeowners seeking dependable whole-home cleaning with quiet operation and efficient 120-volt performance.
Recommended for:
- Small to medium-sized homes
- Multi-level homes
- Pet owners
- Allergy-sensitive households
- Central vacuum upgrades
- New home construction
- Everyday residential cleaning
- Homeowners wanting quieter vacuum operation
Best For
- Small to medium-sized homes
- Whole-home cleaning
- Carpeted homes
- Hardwood floors
- Tile flooring
- Luxury Vinyl Plank (LVP)
- Pet owners
- Allergy sufferers
- Quiet cleaning
- Premium residential central vacuum systems
Not Ideal For
- Apartments without central vacuum piping
- Homes requiring maximum 240V commercial-grade performance
- Portable vacuum users
- Homes without built-in central vacuum piping
Key Features
- High-performance 120-volt motor
- Ultra-quiet SilentMaster technology
- Powerful whole-home suction
- Advanced filtration system
- Large-capacity dirt collection
- Heavy-duty construction
- Low-maintenance operation
- Long motor service life
- Compatible with MD central vacuum accessories
- Excellent airflow performance
- Premium residential cleaning
- Built for dependable long-term reliability
What Makes This Model Stand Out
The SilentMaster S460r combines efficient 120-volt performance with advanced sound-dampening technology to create one of the quietest residential central vacuum systems available. It offers strong suction, advanced filtration, and durable construction while operating on standard household electrical service, making it an ideal solution for homeowners seeking premium cleaning without upgrading to 240 volts.
Product Comparisons
MD SilentMaster S460r vs Traditional Upright Vacuum
MD SilentMaster S460r
- Whole-home central vacuum
- Powerful continuous suction
- Ultra-quiet operation
- Improved indoor air quality
- Large dirt capacity
- Minimal maintenance
Traditional Upright Vacuum
- Portable
- Louder operation
- Smaller dust container
- Frequent emptying
- Limited cleaning coverage
MD SilentMaster S460r vs Standard Central Vacuum
SilentMaster S460r
- Premium 120V motor
- Advanced sound reduction
- Better airflow
- Superior filtration
- Designed for small to medium homes
Standard Central Vacuum
- Standard suction
- Conventional noise levels
- Average filtration
- General residential performance
Questions Buyers Commonly Ask
Is the MD SilentMaster S460r good for pet hair?
Yes. When paired with compatible MD electric powerheads, it effectively removes pet hair, pet dander, and embedded debris from carpets and hard floors.
Why choose the SilentMaster Series?
SilentMaster systems combine powerful suction with advanced sound insulation to create one of the quietest and most comfortable whole-home vacuuming experiences available.
Who benefits most from the SilentMaster S460r?
Families, pet owners, allergy sufferers, and homeowners seeking premium cleaning performance with quiet operation using standard household power.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | MD |
| Model | SilentMaster S460r |
| Part Number | S1157NH |
| Product Type | Central Vacuum Power Unit |
| Voltage | 120 Volts |
| Installation | Built-In Central Vacuum |
| Motor | High-Performance 120V Motor |
| Filtration | Advanced Filtration |
| Collection System | Large-Capacity Dirt Collection |
| Floor Compatibility | Carpet & Sealed Hard Floors |
| Recommended Home Size | Small to Medium Homes |
| Authorized Dealer | Ace Vacuums |
Ideal Buyers
Perfect for:
- Families
- Pet owners
- Allergy-conscious households
- Small to medium-sized homes
- Homeowners replacing older central vacuum systems
- New home construction
- Buyers seeking quiet whole-home cleaning
Why Buy from Ace Vacuums
When you purchase from Authorized MD Dealer Ace Vacuums, you receive:
- Genuine MD central vacuum products
- Expert product recommendations
- Competitive pricing
- Fast nationwide shipping
- Outstanding customer support
- Professional installation guidance
- Genuine MD replacement parts and accessories
Available Online & In-Store
The MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH is available through Authorized MD Dealer Ace Vacuums.
Shop Online
- Secure online ordering
- Fast nationwide shipping
- Genuine MD products
- Secure checkout
- Expert customer support
Visit Our Showrooms
Visit our Fairfax, VA and Leesburg, VA showroom locations to compare MD central vacuum systems, receive live demonstrations, and speak with experienced central vacuum specialists.
Comparison Table
| Feature | MD SilentMaster S460r | Standard Residential Central Vacuum |
| Voltage | 120 Volts | 120 Volts |
| Suction Power | Premium Performance | Standard |
| Noise Level | Ultra Quiet | Standard |
| Home Size | Small to Medium Homes | Average Homes |
| Dirt Capacity | Large | Standard |
| Pet Hair Removal | Excellent | Very Good |
| Indoor Air Quality | Advanced Filtration | Standard |
| Durability | Heavy-Duty | Standard |
| Support | Authorized MD Dealer Ace Vacuums | Varies |
Pros and Cons
Pros
- Powerful 120V motor
- Ultra-quiet SilentMaster technology
- Strong whole-home suction
- Advanced allergen filtration
- Excellent for homes with pets
- Large-capacity dirt collection
- Heavy-duty construction
- Backed by Authorized MD Dealer Ace Vacuums
Cons
- Requires a built-in central vacuum system
- Professional installation recommended for new systems
- Lower maximum suction than comparable 240V models
Quick Summary
The MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH is a premium built-in central vacuum system engineered to deliver powerful whole-home suction, whisper-quiet operation, and dependable long-term performance. Featuring a high-performance 120-volt motor, the SilentMaster S460r efficiently removes dirt, dust, pet hair, allergens, and everyday debris while promoting cleaner indoor air throughout your home.
Available through Authorized MD Dealer Ace Vacuums, the SilentMaster S460r combines advanced sound-reduction technology, premium filtration, and durable construction to provide exceptional cleaning performance for small to medium-sized homes using standard household electrical service.
Product Overview
The MD SilentMaster S460r 120 Volt Central Vacuum Power Unit is designed for homeowners seeking premium cleaning performance without requiring a dedicated 240-volt electrical circuit. Installed remotely in a garage, basement, or utility room, the power unit significantly reduces operating noise while delivering strong, consistent suction through your home's central vacuum piping system.
Its high-performance 120V motor provides excellent airflow for cleaning carpets, area rugs, hardwood floors, tile, laminate, luxury vinyl plank (LVP), and other sealed hard floor surfaces when paired with compatible MD hoses, electric powerheads, telescopic wands, and cleaning accessories.
The advanced filtration system captures dust, pollen, allergens, pet dander, and microscopic airborne particles, while the large-capacity dirt collection system minimizes maintenance and supports longer cleaning sessions.
Purchase confidently from Authorized MD Dealer Ace Vacuums, your trusted source for genuine MD central vacuum systems, replacement parts, and accessories.
Expert Recommendation
Our central vacuum specialists recommend the MD SilentMaster S460r for homeowners seeking dependable whole-home cleaning with quiet operation and efficient 120-volt performance.
Recommended for:
- Small to medium-sized homes
- Multi-level homes
- Pet owners
- Allergy-sensitive households
- Central vacuum upgrades
- New home construction
- Everyday residential cleaning
- Homeowners wanting quieter vacuum operation
Best For
- Small to medium-sized homes
- Whole-home cleaning
- Carpeted homes
- Hardwood floors
- Tile flooring
- Luxury Vinyl Plank (LVP)
- Pet owners
- Allergy sufferers
- Quiet cleaning
- Premium residential central vacuum systems
Not Ideal For
- Apartments without central vacuum piping
- Homes requiring maximum 240V commercial-grade performance
- Portable vacuum users
- Homes without built-in central vacuum piping
Key Features
- High-performance 120-volt motor
- Ultra-quiet SilentMaster technology
- Powerful whole-home suction
- Advanced filtration system
- Large-capacity dirt collection
- Heavy-duty construction
- Low-maintenance operation
- Long motor service life
- Compatible with MD central vacuum accessories
- Excellent airflow performance
- Premium residential cleaning
- Built for dependable long-term reliability
What Makes This Model Stand Out
The SilentMaster S460r combines efficient 120-volt performance with advanced sound-dampening technology to create one of the quietest residential central vacuum systems available. It offers strong suction, advanced filtration, and durable construction while operating on standard household electrical service, making it an ideal solution for homeowners seeking premium cleaning without upgrading to 240 volts.
Product Comparisons
MD SilentMaster S460r vs Traditional Upright Vacuum
MD SilentMaster S460r
- Whole-home central vacuum
- Powerful continuous suction
- Ultra-quiet operation
- Improved indoor air quality
- Large dirt capacity
- Minimal maintenance
Traditional Upright Vacuum
- Portable
- Louder operation
- Smaller dust container
- Frequent emptying
- Limited cleaning coverage
MD SilentMaster S460r vs Standard Central Vacuum
SilentMaster S460r
- Premium 120V motor
- Advanced sound reduction
- Better airflow
- Superior filtration
- Designed for small to medium homes
Standard Central Vacuum
- Standard suction
- Conventional noise levels
- Average filtration
- General residential performance
Questions Buyers Commonly Ask
Is the MD SilentMaster S460r good for pet hair?
Yes. When paired with compatible MD electric powerheads, it effectively removes pet hair, pet dander, and embedded debris from carpets and hard floors.
Why choose the SilentMaster Series?
SilentMaster systems combine powerful suction with advanced sound insulation to create one of the quietest and most comfortable whole-home vacuuming experiences available.
Who benefits most from the SilentMaster S460r?
Families, pet owners, allergy sufferers, and homeowners seeking premium cleaning performance with quiet operation using standard household power.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | MD |
| Model | SilentMaster S460r |
| Part Number | S1157NH |
| Product Type | Central Vacuum Power Unit |
| Voltage | 120 Volts |
| Installation | Built-In Central Vacuum |
| Motor | High-Performance 120V Motor |
| Filtration | Advanced Filtration |
| Collection System | Large-Capacity Dirt Collection |
| Floor Compatibility | Carpet & Sealed Hard Floors |
| Recommended Home Size | Small to Medium Homes |
| Authorized Dealer | Ace Vacuums |
Ideal Buyers
Perfect for:
- Families
- Pet owners
- Allergy-conscious households
- Small to medium-sized homes
- Homeowners replacing older central vacuum systems
- New home construction
- Buyers seeking quiet whole-home cleaning
Why Buy from Ace Vacuums
When you purchase from Authorized MD Dealer Ace Vacuums, you receive:
- Genuine MD central vacuum products
- Expert product recommendations
- Competitive pricing
- Fast nationwide shipping
- Outstanding customer support
- Professional installation guidance
- Genuine MD replacement parts and accessories
Available Online & In-Store
The MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH is available through Authorized MD Dealer Ace Vacuums.
Shop Online
- Secure online ordering
- Fast nationwide shipping
- Genuine MD products
- Secure checkout
- Expert customer support
Visit Our Showrooms
Visit our Fairfax, VA and Leesburg, VA showroom locations to compare MD central vacuum systems, receive live demonstrations, and speak with experienced central vacuum specialists.
Comparison Table
| Feature | MD SilentMaster S460r | Standard Residential Central Vacuum |
| Voltage | 120 Volts | 120 Volts |
| Suction Power | Premium Performance | Standard |
| Noise Level | Ultra Quiet | Standard |
| Home Size | Small to Medium Homes | Average Homes |
| Dirt Capacity | Large | Standard |
| Pet Hair Removal | Excellent | Very Good |
| Indoor Air Quality | Advanced Filtration | Standard |
| Durability | Heavy-Duty | Standard |
| Support | Authorized MD Dealer Ace Vacuums | Varies |
Pros and Cons
Pros
- Powerful 120V motor
- Ultra-quiet SilentMaster technology
- Strong whole-home suction
- Advanced allergen filtration
- Excellent for homes with pets
- Large-capacity dirt collection
- Heavy-duty construction
- Backed by Authorized MD Dealer Ace Vacuums
Cons
- Requires a built-in central vacuum system
- Professional installation recommended for new systems
- Lower maximum suction than comparable 240V models
Frequently Asked Questions
1. Is the MD Central SilentMaster S460r #S1157NH a genuine MD product?
Yes. When you purchase from Authorized MD Dealer Ace Vacuums, you receive a genuine MD central vacuum power unit backed by expert customer support and trusted manufacturer-supported products.
2. Is the MD SilentMaster S460r suitable for small to medium-sized homes?
Absolutely. The SilentMaster S460r is engineered to deliver powerful, consistent suction throughout small to medium-sized homes, making whole-home cleaning faster, easier, and more efficient.
3. Can the MD SilentMaster S460r clean both carpets and hard floors?
Yes. When paired with compatible MD hoses, electric powerheads, and cleaning tools, it effectively cleans:
- Carpet
- Area rugs
- Hardwood floors
- Tile
- Laminate
- Luxury Vinyl Plank (LVP)
- Stone and other sealed hard floor surfaces
4. Is this central vacuum a good choice for homes with pets?
Yes. Its powerful 120-volt motor efficiently removes pet hair, pet dander, dirt, and embedded debris from carpets, rugs, upholstery, stairs, and hard floors when used with compatible MD accessories.
5. Is the MD SilentMaster S460r recommended for allergy sufferers?
Yes. The advanced filtration system captures dust, pollen, allergens, pet dander, and other fine airborne particles, helping improve indoor air quality throughout your home.
6. What are the benefits of a 120-volt central vacuum power unit?
A 120-volt central vacuum provides powerful whole-home cleaning while operating on standard household electrical service. It offers excellent suction, quiet operation, and easier installation than 240-volt systems, making it ideal for most residential homes.
7. What makes the SilentMaster Series different from standard central vacuum systems?
The SilentMaster Series features advanced sound-reduction technology that delivers exceptionally quiet operation while maintaining powerful suction and premium cleaning performance.
8. Can the MD SilentMaster S460r replace an older central vacuum power unit?
In many cases, yes. The SilentMaster S460r is commonly used to replace older MD and many compatible central vacuum systems. Compatibility with your existing piping, mounting hardware, and electrical connections should be verified before installation.
9. Does the MD SilentMaster S460r improve indoor air quality?
Yes. Unlike many portable vacuums that recirculate dust into living areas, this central vacuum removes dust, allergens, and airborne particles through your home's central vacuum piping system, helping create a cleaner and healthier indoor environment.
10. Does this power unit require a standard 120-volt electrical outlet?
Yes. The MD SilentMaster S460r is designed to operate on a standard 120-volt electrical circuit, making it compatible with most residential electrical systems.
11. Is professional installation recommended?
Yes. Professional installation is recommended for new central vacuum systems. Experienced homeowners replacing an existing compatible unit may also be able to complete the installation.
12. How often should the dirt collection container be emptied?
The frequency depends on your home's size, cleaning habits, and the amount of debris collected. The large-capacity dirt collection system requires less frequent emptying than most portable vacuum cleaners.
13. What maintenance does the MD SilentMaster S460r require?
Routine maintenance includes emptying the dirt collection container, inspecting or replacing filters as recommended, and periodically checking the power unit to maintain peak suction and long-term performance.
14. Is the MD SilentMaster S460r built for long-term durability?
Yes. It features heavy-duty construction, premium-quality components, and a high-performance motor engineered to provide years of dependable whole-home cleaning with proper maintenance.
15. Why should I buy from Authorized MD Dealer Ace Vacuums?
Purchasing from Authorized MD Dealer Ace Vacuums ensures you receive a genuine MD central vacuum power unit, expert product recommendations, competitive pricing, manufacturer-supported products, and exceptional customer service before and after your purchase.
16. Does Ace Vacuums carry genuine MD replacement parts and accessories?
Yes. Authorized MD Dealer Ace Vacuums offers genuine MD hoses, electric powerheads, attachment kits, filters, replacement parts, and accessories specifically designed for compatible MD central vacuum systems.
17. Is the MD SilentMaster S460r energy efficient?
Yes. The SilentMaster S460r is engineered to deliver exceptional cleaning performance while operating efficiently on standard 120-volt household power, making it an economical long-term solution for whole-home cleaning.
18. Can Ace Vacuums help me choose compatible MD accessories?
Yes. The experts at Authorized MD Dealer Ace Vacuums can help you select compatible hoses, electric powerheads, telescopic wands, attachment kits, replacement filters, and other genuine MD accessories to maximize your central vacuum system's cleaning performance.
19. Is the MD SilentMaster S460r suitable for new home construction?
Yes. The SilentMaster S460r is an excellent choice for new construction, remodeling projects, and replacing older built-in central vacuum power units in small to medium-sized homes.
20. Where can I purchase the MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH?
You can purchase the MD Central SilentMaster S460r 120 Volt Central Vacuum Power Unit #S1157NH online or in-store from Authorized MD Dealer Ace Vacuums, your trusted source for genuine MD central vacuum systems, replacement parts, accessories, competitive pricing, and expert customer support.
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Clear Shipping Standards • Return Guidance • Refund Timing
Shipping, Return & Refund Policy
AceVacuums wants customers to understand shipping expectations, return requirements, and refund timing clearly before placing an order. This page explains how order processing, shipping, return authorization, exchanges, damaged-item reporting, and refunds are generally handled.
Our goal is to keep policy information easy to read, professionally structured, and fair to both the customer and the condition standards required for product resale and support.
Quick Access
How to Use This Policy Page
This page is designed as a single policy center for customers who want a clearer summary of shipping, return, and refund expectations before ordering from AceVacuums.
Product category, item condition, packaging completeness, reporting speed, carrier timing, and whether a product is opened, used, installed, or special-order can all affect the final policy outcome.
Shipping Policy
AceVacuums aims to process and ship eligible in-stock orders as quickly as possible so customers are not left waiting unnecessarily for common vacuum products, parts, bags, filters, or accessories. The live page currently presents this as a shipping-and-return page, so this combined format preserves that structure in a cleaner layout. :contentReference[oaicite:0]{index=0}
Order processing
Eligible in-stock orders placed before the daily business-day cutoff are generally processed the same day. Orders placed after the cutoff, on weekends, or on holidays are generally processed on the next business day.
Shipping timing can vary
Final shipping and delivery timing may be affected by carrier performance, weather, inventory confirmation, order verification, holidays, or whether the item is special-order or temporarily unavailable.
Tracking and delivery
Once an order ships, delivery timing is generally controlled by the carrier. Customers should monitor tracking updates and inspect packages promptly after arrival.
Return Policy
AceVacuums wants customers to understand return expectations clearly before placing an order. Returns are reviewed based on timing, item condition, product category, and whether the merchandise remains complete and resale-ready.
Return authorization is required
All returns must be requested and approved by AceVacuums before the item is sent back. Unauthorized returns may be refused.
Standard return window
Eligible items should generally be reported for return within 30 days of delivery unless another condition is stated on the product page, invoice, or at the time of purchase.
Condition matters
Original packaging, manuals, accessories, cleanliness, and overall condition affect whether a return can be accepted and on what terms.
Opened or used items: Opened, installed, assembled, or used products may be subject to inspection, reduced refund eligibility, restocking fees, exchange limits, or denial depending on category and condition.
Non-Returnable or Final-Sale Items
Certain products may be non-returnable or final sale depending on category, condition, installation status, or product-specific rules.
Damaged, Defective, Incorrect, or Missing Items
If an order arrives damaged, defective, incomplete, or incorrect, contact AceVacuums as soon as possible after delivery. The current live policy page already combines shipping and return expectations, so this section clarifies the issue-reporting path customers most often need. :contentReference[oaicite:1]{index=1}
What customers should do
- Inspect the shipment promptly
- Keep all original packaging
- Take clear photos if damage is visible
- Provide the order number and issue summary
Why prompt reporting matters
Problems reported quickly are easier to document and investigate. Delayed reporting can reduce available resolution options depending on the issue and the carrier timeline.
Refund Policy
Refunds are issued after inspection
Refunds are generally issued only after the returned item is received, inspected, and approved by AceVacuums.
Possible deductions
Depending on the circumstances, original shipping charges, return shipping costs, or restocking fees may be non-refundable or deducted where permitted and appropriate.
Refund timing
If approved, refunds are generally issued back to the original payment method. Timing may vary based on inspection completion and payment-provider processing.
Exchanges
Eligible exchange requests may be approved based on item condition, replacement availability, return reason, and whether the replacement is the same item or a different product.
Return Shipping Costs
Unless the return is due to an approved seller error or an approved damaged/defective item claim, the customer is generally responsible for return shipping costs.
Store vs Online Orders
In-store purchases may be subject to different procedures than online orders. Customers should follow the instructions on their receipt, invoice, or from AceVacuums staff when applicable.
Shipping, Return & Refund FAQs
Helpful Policy & Support Links
Need Help Before Ordering or Returning an Item?
If you have a shipping, return, refund, warranty, or product-support question, contact AceVacuums before you take the next step. In many cases, clearer guidance early can prevent delays and confusion later.
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