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Sun Mar Centrex 2000 Air Flow (AF) Composting Toilet Systems
Sun-Mar Centrex 2000 AF Composting Toilet System Sun-Mar waterfree systems use the handsome Sun-Mar Dry Toilet (in either white or bone), fitted with a removable bowl liner, and connected to the contral composting unit by means of a 10" diameter pipe section. Odor free operation is maintained by a fan which pulls air down through the toilet seat and up the vent stack. Sun-Mar waterfree toilet systems can only be used where the toilet can be placed directly over the composting unit.

All A/F units are supplied with a 1" drain hose which should be connected to the 1" drain at the bottom left of the unit. Liquid output, if any, should be collected or drained into an approved facility. Under seasonal or light residential use, the Centrex 2000 AF and Centrex 3000 AF should be able to evaporate all liquids; hookup of the drain is still recommended as a safety measure.

HOW TO DECIDE WHICH UNIT IS RIGHT FOR YOU:
When it comes to picking the right unit for your needs, first decide whether you need an electric or non-electric unit. If you have continuous 110 Volt power, an electric unit is suggested. These feature a 370 watt 120v thermostatically controlled heater in a sealed compartment beneath the unit, and a standard 30 watt turbo fan directing air up a 2" vent stack. The combination of fan and heater are able to evaporate up to 9 litres of liquid per day; depending on usage there may be little or no liquid output.

If you have no electricity, then a non-electric (NE) unit is the right selection. Non-electric units are supplied with a 2.4 watt 12 Volt fan to assist updraft on the 4" stack. The absence of heat and reduced air flow limits evaporation on NE units.

AC/DC units are dual vented units with aboht a 2" and 4" vent for those who expect to have 110v power in the future, or are running a generator for 12 or more hours per day.

They are supplied with a 29.5" pipe piece (10" diameter). This is long enough if the floor of the bathroom is up to 38" (34" for the 2000 AF) above the surface that the composter is placed on. The pipe piece can be cut to size and additional pieces ordered if necessary.

MODELS:
The CENTREX 2000 AF has a capacity of 4-6 residential and 6-8 weekend/vacation. It features a 370 watt thermostatically controlled heater in a sealed compartment under the unit and the standard Sun-Mar 30 watt turbo fan, with a 2" vent stack to remove the evaporate and fresh odors.

The CENTREX 2000 AF NE has a capacity of 3-5 residential or 5-7 weekend/vacation. This is the non-electric version of the Centrex 2000 AF, and is fitted with a 4" vent stack. Installation of a 12 Volt fan is required on this model, and one is included in the box.

The CENTREX 2000 AF AC/DC has a capacity of 4-6 residential and 6-8 weekend/vacation in AC mode. In DC mode, the capacity is 3-5 residential and 5-7 weekend/vacation. It combines the features of the non-electric and electric units to produce a hybrid unit that will be ideal for those anticipating 110 volt power in the future, those who are in an area that sees frequent power outages, or those who would like to take advantage of the evaporative capacity of the heater when 110V electricity is available to them. Even with the evaporation capacity, the overflow drain should be installed with this unit as there will be overflow when the unit is being used in DC mode, and when it is used to maximum capacity in AC mode.

The Centrex 2000 A/F AC/DC requires that 2 vent stacks be installed to handle the separate venting functions. The 2" vent is in use when the AC fan is in operation, and the 4" vent is venting the unit passively when there is no power available. As an extra option, we include a 12 Volt 1.4 Watt fan with the Centrex 2000 A/F AC/DC. You may want to install this fan if the unit is to see maximum capacity use, and you should install the 12 Volt fan if you have to put any bends in the 4" vent stack, as you will then lose the "chimney effect" advantage of a vertical stack, and will need to provide air movement with the fan.

While in AC operation, the unit should not require that an overflow drain be connected, unless it is being used heavily. While in DC operation, the overflow drain should be connected.

Manufacturer's specifications and rough-in drawings are available upon request. NSF certified.
Item # Description Price  
AP11724 Sun-Mar Centrex 2000 AF Composting Toilet System $1,645.00 Add to Cart
AP11725 Sun-Mar Centrex 2000 AF NE Composting Toilet System $1,505.00 Add to Cart
AP11726 Sun-Mar Centrex 2000 AF AC/DC Composting Toilet System $1,715.00 Add to Cart
Sun-Mar Centrex 2000 AF NE Composting Toilet System Sun-Mar Centrex 2000 AF NE Composting Toilet System
Sun-Mar Centrex 2000 AF AC/DC Composting Toilet System Sun-Mar Centrex 2000 AF AC/DC Composting Toilet System