BS EN-16902-2016 pdf free download.Commercial beverage coolers — Classification, requirements and test conditions
5.2 Construction
5.2.1 General
5.2.1.1 Strength and rigidity
The commercial beverage cooler and its parts shall be constructed with adequate strength and rigidity for normal conditions of handling, transport and use and attention shall be given to the following:
a) interior fittings, including shelves, baskets, rails, etc. and their supports, shall be sufficiently strong for the duty required;
b) where sliding shelves, baskets, trays or drawers are fitted they shall retain their shape and ease of movement when fully loaded;
c) any fitments which are provided with stops to prevent accidental removal shall be self-supporting when fully loaded and withdrawn to the limit of the stops.
5.2.1.2 Pipes and connections
Pipes and connections to moving or resiliently mounted parts shall be arranged so as not to foul or transmit harmful vibrations to other parts. All other pipes and connections shall be securely anchored,and sufficient free length and/or vibration eliminators shall be provided to prevent failure due to fatigue. Where necessary, pipes and valves shall be adequately thermally insulated.
5.2.1.3 Condensate drainage
Where drains, drip trays or evaporation receptacles are fitted, they shall have ample capacity and shall be easily accessible and cleanable.
5.2.1.4 Joints and seams
All construction joints and seams within the net volume shall prevent the accumulation of potentially contaminating substances.
All construction joints and seams within the net volume shall permit the easy removal of any deposits of potentially contaminating substances.
5.2.2 Materials
5.2.2.1 General
The materials shall be durable and shall not favour the development of mould or emit odours.
Under normal conditions of use, materials in contact with foodstuffs shall be resistant to moisture and shall neither be toxic nor contaminate them.
5.2.2.2 Wear resistance
Internal and external finishes shall be resistant to wear and capable of being cleaned effectively and hygienically. Finishes shall not crack, chip, flake, rub off or soften under normal conditions of use or during cleaning.
5.2.2.3 Corrosion resistance
Metal parts, used in the construction of commercial beverage coolers, shall have resistance to corrosion appropriate to their location and function.
5.2.3 Thermal insulation
5.2.3.1 Efficiency
The thermal insulation shall be efficient and permanently fixed. In particular, the insulating materialshall not be subject to shrinkage and shall not allow under normal working conditions an accumulation of moisture.
5.2.3.2 Vapour barrier
Suitable means shall be used to prevent deterioration of the thermal insulation by the ingress of moisture.
5.2.3.3 Containment of insulation material
Where the insulation space is vented to the inside, it shall be ensured that particles of the insulation material cannot escape into the foodstuff display compartment.
For fibrous insulation materials, it shall not be possible to insert a rigid probe of 1 mm diameter through any aperture which allows access to the insulating material, the probe being applied with negligible force.
5.2.4 Refrigerating system
5.2.4.1 Design and construction
The design and construction of all parts of the refrigerating system subject to internal pressure shall take into account the maximum working pressure to which they are subjected when the commercial beverage cooler is in operation or at rest.
For commercial beverage coolers with components thereof which are charged with refrigerant prior to transportation, the maximum ambient temperature during transit shall be taken into account. All refrigerant containing components shall be in accordance with ISO 5149-2.
5.2.4.2 Condensation
There shall be suitable means to prevent water condensed on cold surfaces of the commercial beverage cooler and its parts from harmfully affecting the operation of the refrigerating system or its controls.
5.2.4.3 System protection
For commercial beverage cooler fitted with doors or lids, the refrigerating system shall suffer no damage if any door or lid in the commercial beverage cooler is left open while the commercial beverage cooler is operating in an ambient temperature corresponding to the climate class (see Table 1) for which the commercial beverage cooler is intended.BS EN-16902 pdf download.