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B-COOL WMB QC 12V 24V quick connect wall mount DC split air conditioner for heavy equipment
  • B-COOL WMB QC 12V 24V quick connect wall mount DC split air conditioner for heavy equipment
  • B-COOL WMB QC quick connect split air conditioner four views front back side condenser unit
  • B-COOL WMB QC 12V 24V DC split air conditioner red high pressure green low pressure quick connect pipes
  • B-COOL WMB QC wall mount condenser DC split air conditioner
  • B-COOL WMB QC wall mount condenser and interior evaporator DC split air conditioner
B-COOL WMB QC | 12V & 24V DC Wall Mount No-Idle Air Conditioner, Quick Connect, No Roof Cut

B-COOL WMB QC | 12V & 24V DC Wall Mount No-Idle Air Conditioner, Quick Connect, No Roof Cut

 Contact Us to Request Pricing

The B-COOL WMB QC is a 12V and 24V DC-powered wall and side mount no-idle air conditioner with Quick Connect pre-charged pipes — delivering the fastest possible professional installation with no roof penetration required. The evaporator mounts on the interior wall or ceiling of the cab, the condenser mounts on the exterior of the vehicle, and the pre-charged Quick Connect pipes connect the two units without any refrigerant handling equipment on-site.

Where a rooftop unit requires cutting a hole in the roof, the WMB QC mounts on the wall or side of the cab — making it the right choice for vehicles where roof mounting is not possible, not practical, or not permitted. No roof cut. No structural compromise. Full DC no-idle cooling from a wall or side mount position.

At 44 lbs with 350 m³/h of airflow, the WMB QC is the lightest split system in the B-COOL lineup. Powered entirely by your 12V or 24V DC battery system — no engine idling, no shore power, no generator required.
Technical Specifications

📄 Download Full WMB QC Spec Sheet

Specification 12V 24V
Current Draw (Min – Max)35 – 65A10 – 35A
Evaporator Airflow350 m³/h350 m³/h
Noise Level48 dB48 dB
RefrigerantR134a, pre-charged Quick Connect pipesR134a, pre-charged Quick Connect pipes
Quick Connect PipesPre-charged, includedPre-charged, included
100A FuseIncludedIncluded
Mount TypeWall / side mountWall / side mount
Roof Cut RequiredNoNo
Unit Weight44 lbs44 lbs
Evaporator Dimensions20.9 x 7.9 x 15.8 in20.9 x 7.9 x 15.8 in
Standard Power Cable6m (20ft)6m (20ft)

What's In The Box?
  • B-COOL WMB QC Evaporator Unit (wall / side mount)
  • B-COOL WMB QC Condenser Unit
  • Quick Connect Pre-Charged Refrigerant Pipes (ready to connect — no refrigerant handling required)
  • 100A Fuse (included — not included with WMB ST)
  • Remote Control
  • Mounting Hardware Kit
  • Standard Power Cable — 6m (20ft)

The WMB QC arrives with pre-charged Quick Connect pipes. No vacuum pump, no refrigerant recovery equipment, and no licensed refrigerant technician required for the refrigerant connection — just click the Quick Connect fittings together and the system is charged and sealed.
Installation Manual

📄 Download Full WMB QC Installation Manual
https://cdn.shopify.com/s/files/1/0715/1140/8684/files/1._WMB_QC_-_INSTALLATION_MANUAL_-_2026_-_FINAL.pdf?v=1772663285

The WMB QC is a split system — the evaporator mounts on the interior wall or ceiling of the cab and the condenser mounts on the exterior of the vehicle. The two units are connected by flexible pre-charged Quick Connect hoses. No roof penetration required.

Professional installation required.

Step 1 — Plan your mounting locations
Determine the best wall or side mounting location for the evaporator inside the cab. Determine the condenser mounting location on the exterior of the vehicle — ensure adequate airflow clearance around the condenser.

Step 2 — Mount the evaporator
Mount the evaporator unit on the interior wall or ceiling in the chosen location using the included hardware.

Step 3 — Mount the condenser
Mount the condenser unit on the exterior of the vehicle. Ensure adequate airflow clearance on all sides.

Step 4 — Route the Quick Connect hoses
Route the pre-charged Quick Connect hoses between the evaporator and condenser through the vehicle body. Route through existing openings, grommets, or custom penetrations as required.

Step 5 — Connect the Quick Connect fittings
Click the Quick Connect fittings together firmly until locked. The system is pre-charged — no refrigerant handling equipment required. Verify fittings are fully seated and locked before powering on.

Step 6 — Connect the control panel wiring
Connect the control panel wiring between the evaporator and the interior control panel.

Step 7 — Connect power
Run the power cable to your 12V or 24V battery bank. Connect positive first. Install the included 100A fuse in line with the power cable as close to the battery as possible.

Step 8 — Set low voltage protection
Before first use, program the voltage cutoff to protect your battery system:

  • 12V systems: set cutoff between 9V – 12V
  • 24V systems: set cutoff between 19V – 24V

Step 9 — Power on
Turn the unit on and verify operation in all modes.
Operating Manual

📄 Download Full WMB QC Operating Manual
https://cdn.shopify.com/s/files/1/0715/1140/8684/files/2._WMB_QC_-_OPERATING_MANUAL_-_2026_-_FINAL.pdf?v=1772663283

Inside Control Panel — 4 Buttons

  • Button A: Power on / off
  • Button B: Mode — cycles through Low / Medium / High / Powerful fixed-frequency cooling
  • Button C (▲): Increase airflow level
  • Button D (▼): Decrease temperature / adjust settings

Remote Control

Power on / off. Temperature range: 60.8°F – 89.6°F.

Cooling modes:

  • High — default 60.8°F, Level 6 airflow
  • Medium — default 78.8°F, Level 4 airflow
  • Low — default 82.4°F, Level 3 airflow
  • Auto — default 78.8°F, Level 4 airflow
  • Fresh Air — fan only, compressor off. Circulates and ventilates without active cooling.

Airflow: 6 adjustable levels via remote or control panel.

Display button: turns the interior cab display on or off.

Low Voltage Protection

The WMB QC includes programmable voltage cutoff to protect your battery system from deep discharge.

  • 12V systems: set cutoff between 9V – 12V
  • 24V systems: set cutoff between 19V – 24V

When battery voltage drops to the cutoff threshold the unit shuts off automatically to prevent battery damage.
Who It's Built For

The WMB QC is the right unit if:

  • Your vehicle cannot or should not have a roof penetration — the WMB QC mounts on the wall or side of the cab with no roof cut required
  • You need the fastest possible professional installation — the Quick Connect pre-charged pipes eliminate refrigerant handling on-site, reducing install time significantly versus the WMB ST
  • You're a dealer, upfitter, or fleet manager installing multiple units and need a consistent, repeatable wall mount install that doesn't require a licensed refrigeration technician on every job
  • You operate heavy equipment where the cab roof is not accessible, structural, or suitable for penetration — excavators, cranes, specialty equipment where side or wall mounting is the only option
  • You're building a conversion van, Sprinter, Transit, or Promaster where interior wall space is available and you don't want to cut the roof
  • You need an aftermarket 12V or 24V no-idle air conditioner and want wall mount flexibility with the fastest possible install

The key difference between the WMB QC and WMB ST is the refrigerant connection method — Quick Connect pre-charged pipes versus standard hose connections requiring on-site charging. The WMB QC also includes a 100A fuse as standard. If installation speed and simplicity are the priority, the WMB QC is the right choice. Both units are identical in performance.

The key difference between the WMB QC and FLEX QC is the mount type — the WMB QC is specifically designed for wall and side mounting, while the FLEX QC offers more flexible hose routing for installations where neither a roof cut nor a wall mount is ideal.

Applications

Heavy Equipment — excavators, bulldozers, motor graders, cranes, mining equipment — side or wall mount where roof penetration is not possible or not practical

Fleet Upfitting — dealer and fleet installations where Quick Connect wall mount eliminates the need for a refrigeration technician on every install

Van Conversion & Upfitting — Sprinter, Transit, Promaster, and custom conversion vans where wall mounting is preferred over roof cutting

Trucking & Transportation — day cabs, specialty trucks, and vehicles where wall or side mount positioning is preferred over a rooftop unit

Agriculture — tractors and harvesting equipment where cab configuration makes rooftop mounting impractical and wall mounting is available

Off-Grid & Solar Builds — battery-powered off-grid vehicles where wall mount positioning and no roof penetration are design priorities
FAQ

What is the difference between the WMB QC and the WMB ST?
Both are identical in performance — same specs, same airflow (350 m³/h), same noise (48 dB), same amp draw (35–65A at 12V), same weight (44 lbs). The difference is the refrigerant connection method. The WMB ST uses standard hose connections requiring on-site charging by a licensed refrigeration technician. The WMB QC uses pre-charged Quick Connect pipes — no refrigerant equipment needed. The WMB QC also includes a 100A fuse as standard.

What is the difference between the WMB QC and the FLEX QC?
Both use Quick Connect pre-charged pipes and have identical performance specs. The WMB QC is specifically designed for wall and side mounting — the evaporator unit is shaped and sized for wall installation. The FLEX QC has a different evaporator form factor with more flexible hose routing options for installations where wall mounting is not ideal.

Does the WMB QC require a roof cut?
No. The WMB QC mounts on the interior wall or side of the cab. No roof penetration required.

What is Quick Connect and how does it work?
Quick Connect is a pre-charged refrigerant pipe system where the refrigerant is already sealed inside the pipes at the factory. You click the Quick Connect fittings together until locked — the system is charged and sealed instantly with no refrigerant handling equipment required.

Does the WMB QC work on both 12V and 24V systems?
Yes. The WMB QC is available in both 12V and 24V configurations. Select your voltage when ordering. The unit is wired for one voltage — it is not a dual-voltage unit.

Does it come pre-charged?
Yes. The WMB QC's Quick Connect pipes arrive pre-charged with R134a refrigerant. No vacuum pump or refrigerant handling equipment needed.

Is this unit compliant with anti-idling regulations?
Yes. The WMB QC runs entirely on DC battery power with no engine idling required, making it fully compatible with anti-idling laws and idle reduction programs across North America.

What battery bank do I need?
At 12V, the WMB QC draws between 35 and 65 amps. Contact our technical support team to size your battery system correctly for your runtime requirements.

What if I need replacement parts?
All WMB QC components are stocked with dedicated part numbers. Contact our Parts Department at adrian@dcpowersales.com or 778-679-4999.
Contact & Support

When you buy from B-COOL, you're not buying from an Amazon storefront with no support. You're buying from the team that wrote the installation manual, stocks the replacement parts, and answers the phone.

Sales & Inquiries
📧 sales@dcpowersales.com
📞 778-590-5000

Technical Support
📧 adrian@dcpowersales.com
📞 778-679-4999


Parts Available in Canada & United States. We stock all parts - compressor, control board, condenser fan assembly, evaporator, blower motor, louver motor, all hoses, hardware and more.
Why B-COOL Does Not List BTU Ratings

Every other brand lists BTU numbers. We don't, and here's why.

BTU ratings in the 12V and 24V air conditioner market are tested in controlled lab conditions and competitors go with their favourite testing company and tend to use those results that depicts them the "best". Real-world performance — inside a truck cab or RV sitting in the sun at 100°F+ — is a completely different story. The numbers you see on competitor listings are inflated, and we are not willing to publish figures that mislead the people who depend on this equipment to stay safe and productive.

Lower amp draw means longer battery runtime. For operators running on batteries overnight, during rest breaks, or in anti-idling zones, the 6RM stretches your power further than any other rooftop option in our lineup.

Compare All B-COOL Models

Model Noise Weight Airflow 12V Amps 24V Amps Special Features Availability
5RM 68 dB 40 lbs 400 m³/h 40 – 75A 11 – 40A Lightest rooftop, simplest install Available to Purchase Online
X7RM 68 dB 48 lbs 400 m³/h 40 – 75A 11 – 40A Cooling + PTC heating (4-season) Pricing Upon Request
6RM 38 dB 60 lbs 310 m³/h 30 – 60A 8 – 33A Quietest small rooftop, lowest amp draw, auto-swing louver Pricing Upon Request
9RM 38 dB 77 lbs 350 m³/h 30 – 70A 8 – 38A Capillary tube, large cab coverage Pricing Upon Request
12RV 28 dB 77 lbs 350 m³/h 30 – 70A 8 – 38A Quietest unit overall, RV square cut, internal filters Pricing Upon Request
12RM Dual Fan 48 dB 99 lbs 400 m³/h 35 – 85A 10 – 45A Dual fan, most modes, Hybrid Control Panel optional Pricing Upon Request
YTRM 48 dB 99 lbs 460 m³/h 35 – 85A 10 – 45A Highest airflow, yard truck built, ignition cut-off Pricing Upon Request
FLEX ST 48 dB 53 lbs 350 m³/h 35 – 65A 10 – 35A Flexible hose routing, split system Available to Purchase Online
FLEX QC 48 dB 53 lbs 350 m³/h 35 – 65A 10 – 35A Quick Connect, split system, 100A fuse included Pricing Upon Request
WMB ST 48 dB 44 lbs 350 m³/h 35 – 65A 10 – 35A Wall/side mount, no roof cut needed Available to Purchase Online
WMB QC 48 dB 44 lbs 350 m³/h 35 – 65A 10 – 35A Quick Connect, wall/side mount, 100A fuse included Pricing Upon Request

Not sure which unit is right for you? Contact our sales team at sales@dcpowersales.com or 778-590-5000 — we'll help you choose.

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