Installation Site Requirements; Heating System; Safety Equipment - Wolf COB-2 Operation Instructions Manual

Planning
4.2.3

Installation site requirements

Requirements
Substrate
Ventilation (open flue)
Frost protection
Vapours and dust
Combustion air
For installation in oil
storage rooms
Table 4.1 Installation site requirements
4.3

Heating system

4.3.1

Safety equipment

– Provide a drain & fill valve at the lowest point in the system.
– The heat exchanger has not been fitted with an expansion vessel at the factory.
► The expansion vessel must be sized sufficiently, in accordance with DIN 4807.
► Fit the expansion vessel onsite (WOLF accessories range).
WARNING
Risk of explosion due to pressure buildup!
Scalding and physical injury.
► Do not install a shut-off valve between the expansion vessel and the heat generator.
This does not include butterfly valves upstream of the expansion vessel.
► Route the discharge pipe of the butterfly valve into a drain outlet.
– Make sure that a drain outlet and safety assembly is provided.
The safety assembly from the WOLF accessories range includes an integral 3 bar safety valve.
– A minimum flow rate prevents damage to the hot water heat exchanger as a result of overheating or
steam hammers. This is not required for flow temperatures < 80 °C.
– WOLF recommends using a sludge separator with a magnetite separator.
Deposits in the heating water heat exchanger may lead to boiling noises, a drop in performance or
faults. Using a sludge separator with a magnetite separator protects the heat generator and the high-
efficiency pump against magnetic and non-magnetic contamination.
► Install a sludge separator with magnetite separator in the heating return to the heat generator.
– WOLF recommends using an air and microbubble separator.
Microbubbles can cause faults in the heating circuit. An air and microbubble separator is most effective
at the hottest point of the heating circuit.
► Install the air and microbubble separator in the heating flow of the heat generator.
14 | WOLF GmbH
Level
Adequate load bearing capacity
Ventilation requirements specified in
TRÖl
Adequate ambient temperature
No aggressive steam
No significant dust levels
Appliance must not be installed in
areas like workshops, washrooms,
hobby rooms, etc.
Free from halogenated hydrocarbons Premature ageing of heat exchanger due
Comply with relevant national fire
safety regulations.
Possible consequences of failing to
follow instructions
Faults due to air pockets
Operating the appliance with a leaking
flue gas system presents a risk of
poisoning or asphyxiation due to the
escape of flue gases
System damage due to frost
Component damage and/or significant
soiling of hot water heat exchanger
to corrosion.
Risk of explosion/fire
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