nt lia mp -co rb ca Dometic Environmental Corporation P.O. Box 15299 Richmond,VA 23227 Phone: 804-746-1313 Fax: 804-746-7248 Email: sales@DometicTruck.com Website: www.DometicTruck.
Dometic Battery--Powered Auxiliary Air Solutions ◆ CARB approved ◆ Runs on 12V power from bank of Group 31 AGM batteries ◆ Complies with all anti-idle laws ◆ Suitable for day cabs or sleepers ◆ 7,000 and 10,000 BTU capacities • Self-contained package units • Patented split systems with reusable precharged refrigerant linesets ◆ Heating options • 1 to 2 KW built-in electric heat • Interface with installed diesel-fired heaters ◆ No special tools required to install ◆ Turnkey package includes al
ThE BASICS The basic principle of an air conditioner is the transfer of heat from one place to another – in this case from the inside of your vehicle to the outside. This is accomplished by absorbing heat from the inside air into a refrigerant gas flowing through an evaporator coil. The refrigerant is then pumped to a condenser, where the heat is released to the outside air. The refrigerant, a chemical with a low evaporation temperature, flows around a closed loop, driven and pressurized by a compressor.
AIR CONDITIONING CHOICES linesets. The system is designed so that both units automatically charge to the correct refrigerant pressure as soon as the linesets are connected. No special tools are required. Each approach offers advantages and disadvantages. A self-contained unit is simpler to install and maintain, since it does not have any external refrigerant lines. It is also less expensive than a split system of the same BTU capacity.
Split Systems Model Cool Capacity Heat Capacity (BTU) Control Height (in.) Width (in.) Length (in.) Weight (lb.) Cool Amps Heat Refrigerant Amps Internal Unit - Evaporator/Heater/Compressor ECEQ7 7,000 Cooling only Smart digital 11.75 10.25 19.25 53 7.3 n/a R417a EHCEQ7 7,000 1 KW Smart digital 11.75 10.25 19.25 53 7.3 8.2 R417a ECEQ10 10,000 Cooling only Smart digital 11.63 11.12 20.19 60 11.8 n/a R417a EHCEQ10 10,000 7500 BTU Espar Ready Smart digital 11.
SPECIFYING THE SYSTEM About Insulation. Before we go any further, let’s talk briefly about insulation. Most truck sleepers today are insulated with a value of approximately R 1 to R 1.25. Compare this to the insulation of R 30 that is required in most new housing construction. Even the “cold-weather packages” offered with some new trucks only have insulation values of R 2. TMC recommended practices call for R 4.2 as a standard insulation package and greater than R 4.6 in a premium package.
INSTALLING, OPERATING AND MAINTAINING THE SYSTEM Alternator/Regulator Installation Most trucks have a standard 135-amp alternator with internal regulator, which is adequate for keeping the batteries charged under normal conditions. This is not sufficient, however, for the heavier charging requirements for a battery-powered air conditioning system. Dometic specifies a highNumber of batteries Alternator size output alternator with an external regulator.
Dometic Environmental Corporation www.DometicTruck.com Dometic is a customer driven, world-leading provider of innovative leisure products for the caravan, motorhome and marine markets. Dometic offers a complete range of air conditioners, refrigerators, American Transportation Research Institute www.atri-online.org awnings, cookers, sanitation systems, lighting, windows, doors and other equipment that makes leisure life more comfortable away from home. ATA Green Truck Intitiative www.greentruck.
