INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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Installation Instructions
Boiler installation – general information
Angus Max boilers must be put into service by an authorized services. A network of authorised service organisations which meet
these conditions is available for all boiler installations, putting them into service and for warranty repairs.
The boiler is designed to supply heating systems with gauge pressure up to 400 kPa which use water that meets the requirements
of related standarts (under no circumstances may the water be acidic, i.e. it must have pH>7, and it should have minimum carbon
hardness). The heating system must be designed in such a way that hot water can circulate all the time through at least some of the
radiators. Antifreeze fluids – because of their unsuitable properties, we do not recommend to use them. They have a reduced ability
to transfer heat, have large volumetric expansion, age and damage rubber components. If under concrete circumstances there is
no other option how to reliable prevent.
Before final installation, the heating system distribution piping must be flushed several times with pressurised water. In old,already
used systems,the flushing must be done in opposite direction to the hot water circulation. In new systems, all radiators must be
cleaned from conservation material. and rinsed with warm water under pressure.
We recommend installing a sludge trap upstream of the boiler (i.e. on hot water return pipe). The sludge trap design should allow
emptying in regular intervals, without the need to drain a lot of hotwater. The sludge trap may be combined with a filter; however,
a filter alone will not provide an adequate protection.
Please note
System must be connected to open expansion tank for safety reasons.
Any valve must not be connected to safety input and safety output lines.
For increasing safety of the system, by-pass line must be installed on the line between input and output of circulation pumps, as
shown in diagrams.
By-Pass line’s valve must be kept closed as the boiler is working normally.
By-Pass line’s valve can be used in electricity problems and must be opened if there is a risk of overheating in system water caused
by an electricity cut or problem.
The pipe used in by-pass line must be at least in the diameter of plumbing systems pipe.
UPS (Power Supply Units) can be used for preventing electricity problems.
Any problems (malfunctions) caused by boiler clogging with dirt from the heating system and/or malfunctions induced by clogging,
are not covered by the boiler warranty.
The filter as well as the sludge trap must be checked and cleaned regularly.
Heating water requirements
Heating water requirements are specified in EN Standards. When the sum of concentrations of calcium and magnesium in the
water exceeds 1.8 mmol/l, additional non – chemical treatments preventing lime deposition must be considered (e.g. magnetic or
electrostatic field treatment).
