Dometic 3 Way Absorption Refrigerators Installation Guide for Customer Service and Technical Staff

Overview

Dometic absorption refrigerators are designed for optimal performance in caravans, motor homes, and campers, even under high ambient temperatures. Proper installation and ventilation are crucial to ensure the best cooling performance and to avoid operational issues.

Installation Guidelines

• Gas Supply Connection: Must be performed by an authorized gas fitter in accordance with Australian Gas Authority regulations.
• Location: Ensure the refrigerator's ventilation vents are not obstructed by the vehicle door when open.
• Surface: Install the refrigerator on a hard, flat, level surface.
• Sealing: The refrigerator recess must be sealed from the living area to prevent gas leaks or exhaust gases from entering.
• Spacing: Minimize the space between the refrigerator cabinet and surrounding furniture to prevent warm air from the cooling unit from affecting performance. If possible, fill any voids with glass insulation wool around the sides and top of the refrigerator cabinet.
• Ventilation: Follow these key points for any ventilation method:
  • The bottom of the lower vent must be at the floor level. If the lower vent is above the floor, a 40mm hole through the floor is required for potential gas leak escape.
  • The top vent must be mounted above the refrigerator cooling unit, ensuring all air moves through the cooling unit. In some cases, due to vehicle design, the top vent may not be completely above the cabinet but should be for optimal performance.
  • Install a metal warm air deflector plate to direct warm air from the cooling unit outside via the top vent, ensuring it does not interfere with any wiring.

Ventilation Options

• Option One (Up to 100 Litres):
  • Components: AS1625 vent kit, TP (Tee piece & extension), possibly TPX for additional height.
  • Vent kit provides 328 cm² open area per vent.
• Option Two (101 to 200 Litres):
  • Components: Motor home wall vent #3109350.110, roof base #3311237.000, roof cap #3311246.000, Gas flue kit #3776.
  • Roof cap & base provide 730 cm² open ventilation area.
• Option Three (101 to 200 Litres):
  • Components: 2 x Motor home wall vents #3109350.110, Gas flue kit #3776.
  • Each wall vent provides 450 cm² open area.
• Option Four (101 Litres and above):
  • Components: LS300 vent and frame, Gas flue kit #3776.
  • LS300 vent provides 667 cm² open area.

Technical Data

• AS1625 Vent Kit:
  • Upper and lower vent sets with open areas of 328 cm² and 350 cm², respectively.
  • Gas flue Tee piece connection kit includes one extension (TP), with each extension (TXP) adding 43mm in height.
• LS300 Vent:
  • Required cut out: 490mm x 249mm, open area: 667 cm².
• Gas Flue Kit #3776.
• Motor Home Roof Cap #3311246.000:
  • Dimensions: 310mm x 670mm x 100mm, open area: 730 cm².
• Motor Home Wall Vent #3109350.110:
  • Overall dimensions: 587mm x 385mm, cut out required: 550mm x 350mm, open area: 4450cm².

Compliance and Warranty

Adhere to current AS/NZS 5601.2:2010 and future amendments for gas installation regulations. Warranty claims related to incorrect ventilation, installation, or flue setups are not covered under Dometic's two-year warranty.

Note

These guidelines are intended to complement the original installation and operating instructions provided with each Dometic refrigerator. They represent the preferred ventilation systems for all Dometic absorption refrigerators.