CONNECTIONS - PLUMBING
20
MECHANICAL HEATING
All high points of a mechanical heating system should be provided with manual bleed points or fitted with automatic
air vents. The design of the system must be such that the water heater is provided with adequate water flow and
pressure at all times (refer to
„Pump Selection‟ on page 19. On radiator or heating systems where thermostatic
valves will vary the water flow a suitable by-pass valve must be installed to maintain the correct flow rate.
Typical Mechanical Heating Installation
WATER HEATING
Where the water heater is required for hot water applications, the heater MUST be used in conjunction with a hot
water storage tank, manufactured in compliance with AS 3498 under a current Watermark license. To inhibit the
growth of Legionella bacteria, the tankstat controlling the temperature of the stored water must not be set below
60°C.
Typical Water Heating Installation
