Sun-Mar™ | Centrex 3000 - A/F (Air Flow) 240

Sun-Mar™ | Centrex 3000 - A/F (Air Flow) 240

The Centrex 3000 A/F 240 is the electric, waterless version of the largest Centrex range. It is designed for use with a straight-fall waterless pedestal and is positioned for medium to heavy seasonal use and medium residential use where maximum compost volume is needed.

Featuring Sun-Mar’s™ patented Bio-drum™ technology, the Centrex is a true composting system that processes the compost in two stages within the unit itself. The Centrex 3000 composting toilet works on a continuous rotation design to maximize capacity and improve the composting process.

This large Centrex 3000 model will comfortably accommodate an eleven-person holiday-house usage, requiring only one compost removal before and after the holiday. In a residential capacity, the compost will have a different maintenance interval, and when used residentially by up to 4 adults, some compost will need to be emptied into the finishing drawer once every few months.

Capacity and Best Fit

• Holiday / seasonal use: up to 11 people
• Residential use: up to 4 adults, with periodic compost removal into the finishing drawer
• Best suited to: larger holiday houses, larger cabins, and medium residential underfloor waterless installations with reliable 240V power

How this system works

The Centrex 3000 A/F is the waterless version of the popular Centrex range. In the A/F (Air Flow) model, the waste falls under gravity into the drum of the composter. Multiple toilets are not possible with the A/F model as a straight fall is required.

The rotation of the BioDrum forces compost along the length of the Centrex 3000 and into an auto-drop mechanism, which lets the compost fall into the collection tray. Unlike the smaller Centrex 2000, the drum does not have to be rotated backward for emptying — the handle can continue turning in a clockwise direction and allow material to work along the drum and deposit into the separate collection box.

The Centrex 3000 A/F features a 370-watt thermostatically controlled heater in a sealed compartment under the unit and the standard Sun-Mar 30-watt turbofan to supply oxygen to the pile, with a 2" vent stack to remove evaporating liquid and eliminate odours. The increased surface area in the evaporating chamber, coupled with the larger heating element, also provides better evaporation on electric units.

The Centrex 3000 A/F is supplied with a 1" drain hose which should be connected to the 1" drain at the bottom of the unit. This drain hose ensures any excess liquids are removed to a small subsurface gravel absorption trench.

NSF and CSA Performance Certification

Sun-Mar™ composting toilet systems are CSA certified for electrical features under CSA file number LR55925.

NSF/ANSI 41 Standard — Non-Liquid Saturated Treatment Systems

This system is certified for liquid containment, odours, and solid end products.

Sun-Mar is certified by NSF under a six-month independent test protocol requiring odour-free operation at maximum capacity and the production of clean, safe compost.

Certification

Australian & New Zealand Standard 1546

SAI Global certified
Licence Number: SMKH25591

Sun-Mar™ Composting Toilet Systems are certified against the "AS/NZS 1546.2:2008 On-site domestic wastewater treatment units – Waterless composting toilets" standards.

NSF: What you need to know about composting toilets