• Amana PTSB320QW commercial PTAC steel sub-base kit in Quiet White finish
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Amana PTSB Series Commercial PTAC Floor-Mounting Electrical Sub-Base Kit | Factory-Wired Receptacle & Enclosed Junction Box for Amana WS900QW Series Wall Sleeves (Multiple Voltage, Amperage & Color Variants)

Amana PTSB Series Commercial PTAC Floor-Mounting Electrical Sub-Base Kit | Factory-Wired Receptacle & Enclosed Junction Box for Amana WS900QW Series Wall Sleeves (Multiple Voltage, Amperage & Color Variants)

$106.42 USD
$106.42 USD
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The Amana PTSB Series Commercial PTAC Electrical Sub-Base is an essential floor-mounting enclosure and power distribution assembly engineered specifically for Amana PTAC installations. Designed to mount directly beneath Amana WS900QW series insulated wall sleeves, the PTSB series provides structural weight support while serving as a code-compliant, enclosed junction box for hardwired electrical connections or plug-in power cords.

Pre-configured with factory-installed electrical receptacles matching specific voltage 208/230V or 265V and circuit amperages 5/20A or 30A, the PTSB series is available in both factory-matched Quiet White (QW) and Black (BK) architectural finishes to blend seamlessly with any commercial room design.

Code Compliance & Variant Selector: Essential for commercial installations where National Electrical Code (NEC) regulations require an enclosed line-voltage junction, floor-mount support, or local electrical disconnect. Select your exact voltage 208/230V vs 265V, amperage15/20A vs 30A, and cabinet color (Quiet White vs Black) from the variant dropdown options below.

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Structural Wall Sleeve Support & Pre-Wired Electrical Power Enclosure

In commercial hospitality, multi-family housing, and healthcare facilities, properly routing line-voltage electrical power to PTAC units while meeting local building codes is critical. The Amana PTSB Series Electrical Sub-Base provides a commercial-grade, heavy-gauge steel enclosure that mounts under the wall sleeve basepan, providing a clean, hardwired power center that eliminates exposed wall outlets and unsightly hanging cords.

Engineered for Commercial Durability & Fast Jobsite Installation

  • Pre-Wired Power Receptacles: Each PTSB sub-base comes factory-fitted with the exact NEMA electrical receptacle required for your chosen voltage and amperage configuration, saving hours of field wiring labor for electrical contractors.
  • Structural Weight Support: In thin-wall framing or curtain-wall construction, the sub-base transfers the weight of the 110+ lb PTAC chassis directly to the floor, eliminating sleeve sagging, wall stress, and framing deflection over time.
  • Conceals Power Cords & Receptacles: Completely encloses line-voltage wiring, high-voltage junction terminals, and LCDI power cords inside a heavy-duty metal housing—protecting electrical connections from guest liquid spills, vacuum cleaner impacts, and unauthorized tampering.
  • Adjustable Leveling Feet: Features heavy-duty threaded leveling legs that allow installers to achieve perfect horizontal alignment on uneven subfloors, tile, or carpet tack strips during rough-in.

Heavy-Gauge Galvanized Steel Construction: Engineered for structural load support and long-life commercial durability.

Pre-Punched Electrical Knockouts: Features standard 1/2" and 3/4" knockouts for flexible conduit entry from back wall, floor, or sides.

Factory Quiet White & Black Finishes: Durable powder-coated finishes resist scuffs, impacts, and cleaning chemicals.

Integrated Threaded Leveling Legs: Easily adjusts height and leveling on uneven subfloors and carpet.

Universal WS900QW Fitment: Pre-punched mounting holes line up perfectly with Amana WS900QW series 42-inch wall sleeves.

PTSB320QW 208 / 230V15 / 20 Amps NEMA 6-20RQuiet White Standard 208/230V 15A/20A hotel rooms (White)
PTSB330QW 208 / 230V30 Amps NEMA 6-30RQuiet White High-heat 208/230V 30A commercial suites (White)
PTSB420QW 265 Volt20 Amps NEMA 7-20RQuiet White Commercial 265V healthcare / hotel rooms (White)
PTSB430QW 265 Volt30 Amps NEMA 7-30R Quiet White High-heat 265V commercial applications (White)
PTSB320BK 208 / 230V15 / 20 Amps NEMA 6-20RBlack Standard 208/230V 15A/20A dark trim rooms (Black)
PTSB330BK 208 / 230V30 Amps NEMA 6-30R BlackHigh-heat 208/230V 30A dark trim suites (Black)"
PTSB420BK 265 Volt20 Amps NEMA 7-20R BlackCommercial 265V healthcare / dark trim (Black)
PTSB430BK 265 Volt30 Amps NEMA 7-30RBlack High-heat 265V commercial dark trim (Black)

What's Included

  • Amana PTSB Series Commercial Steel Sub-Base Enclosure (Selected Variant)
  • Factory-Installed NEMA Electrical Receptacle Assembly
  • Heavy-Duty Threaded Leveling Legs (Set of 2)
  • Wall Sleeve Attachment Brackets & Mounting Hardware
  • Detailed Installation & Electrical Wiring Schematic
Required & Complementary Accessories

System Compatibility & Accessory Setup:

  • Wall Sleeve (Required): Amana WS900QW Standard 42" Insulated Metal Wall Sleeve
  • Architectural Exterior Grille: Amana DGK1B Architectural Louvered Aluminum Grille
  • Condensate Drain Kit: Amana PTDK01QW / TDK02QW Sleeve Drain Kit
  • PTAC Chassis Units: Amana J-Series and K-Series Commercial PTAC Air Conditioners

coming soon

Frequently Asked Questions

Q1: What is the primary difference between Amana PTSB sub-base variants? +

A: PTSB sub-bases differ by voltage (208/230V vs 265V), amperage capacity (15/20A vs 30A), and exterior color finish (Quiet White vs Black). Each variant includes a factory-installed NEMA receptacle matching that specific electrical specification.

Q2: How do I know whether I need a 208/230V or 265V PTSB sub-base? +

A: Check your building's electrical supply and the PTAC chassis rating plate. Standard hospitality properties typically use 208/230V models (PTSB300 series). Commercial healthcare facilities, high-rise developments, and specific 265V regional grids require 265V models (PTSB400 series).

Q3: Does the Amana PTSB sub-base raise the wall sleeve height? +

A: Yes. The PTSB sub-base adds approximately 3-1/2 inches of height beneath the WS900QW wall sleeve. This height must be accounted for in rough wall cutout framing plans during pre-construction.

Q4: Can the PTSB sub-base be used for hardwired installations without a plug? +

A: Yes. The sub-base features pre-punched 1/2" and 3/4" conduit knockouts, allowing electricians to hardwire electrical supply cables directly into the internal junction box while utilizing or bypassing the internal receptacle.

Q5: Are the leveling legs adjustable on the PTSB sub-base? +

A: Yes. Every PTSB sub-base includes threaded, heavy-duty leveling feet at the front corners, enabling installers to achieve a perfectly level wall sleeve installation on uneven floors or carpet.