INSTALLATION INSTRUCTIONS
(continued)
13
Lateral movement shall not exceed 25mm at the retention means. Any movement shall not
transmit strain to rigid tubing or pipe connections.
Cylinder retention
APPLIANCES INCORPORATING INTEGRAL LPG SUPPLY SYSTEMS
Ventilation openings shall:
(a) be provided at high and low levels; and
(b) have a total free area at high level of not less than 10,000mm
2
; and
(c) have a total free area at low level of not less than 6,000mm
2
; or
(d) consist of perforations with a total free area of not less than 25% of the sidewall area.
The bottom of the low level (set of) opening(s) shall be at the enclosure base with the upper edge
no more than 125mm above the base.
Ventilation of cylinder enclosure
The cylinder valve shall be readily accessible for manual operation. A door in the enclosure to
gain access to the cylinder valve is acceptable provided it is non-locking and can be opened
without the use of tools. An easily removable cover is also acceptable.
Accessibility of cylinder valve
(a) Cylinders should be installed on a firm, level, non-combustible base, and not resting on soil.
The floor or base should be constructed so that water cannot accumulate within any
enclosure or recess.
(b) Cylinders should not be stacked on top of each other.
(c) Any cylinder that is liable to accidental dislodgment should be prevented from falling.
(d) Cylinders should not be installed below ground level unless there is sufficient ventilation to
prevent the accumulation of any leaking gas.
(e) A cylinder should be installed so that the pressure-relief valve is in contact with the vapour
space and, where practicable, any discharge from this valve is directed away from any
adjacent cylinders or combustible structures.
Installing cylinders
ENCLOSURES FOR INTEGRAL LPG SUPPLY SYSTEMS
500mm*
* This distance is
measured from the top
of any cylinder valve.
Ignition source not to be
within the encompassed
area.
Exchange cylinder 1500mm
In-situ fill cylinder 3500mm
Clearances around cylinders