CONNECTIONS
– PLUMBING
19
In locations where water pipes are prone to freezing, the drain line must be insulated and not exceed 300 mm in
length. In this instance, the drain line is to discharge into a tundish through an air gap of between 75 mm and
150 mm.
WARNING
: The pressure relief valve on this water heater may discharge high temperature water under certain
conditions, it is strongly recommended the pipe work downstream of the relief valve be capable of carrying water
exceeding 93 C. Failure to observe this precaution may result in damage to pipe work and property.
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 18. 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
Summary of Contents for B0200
Page 22: ...CONNECTIONS ELECTRICAL 22 WIRING DIAGRAM ON OFF MODELS...
Page 23: ...CONNECTIONS ELECTRICAL 23 WIRING DIAGRAM MODULATING MODELS...
Page 31: ...TEMPERATURE CONTROL 31...
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