Boiler Start-Up, Operation And Stopping, Including Emergency Stop - Kostrzewa Twin Bio Luxury Compact NE 8 Notice Technique

8. Boiler start-up, operation and stopping, including emergency stop

8. Boiler start-up, operation and stopping,
including emergency stop
a. Boiler inspection
Check the following before filling the boiler with water:
• boiler internal checks - clean and check the internal insulation (fire
bricks)
• check movable parts, especially pressurized
• check valves, especially safety valve
• check controls, gauges, regulators (e.g. boiler control system)
• boiler external checks - external insulation, boiler casing etc.
• check connected systems
Immediately remove any defects or faults in the boiler operation. Perform
a water test after major repairs, replacement of pressurized parts and long
downtime periods.
b. Boiler and system filling
System and boiler feed water must meet the design requirement (see section
4). The difference between the feed water temperature and the boiler shell
temperature (ambient temperature) must be as low as possible – a threshold
difference of 30°C is recommended. If this condition cannot be met, extend the
boiler filling time.
Filling procedure:
• open feed valve
• open return valve
• open filling valve
• check boiler and system condition and pressure device integrity
c. Start-up preparation
Check the following before boiler start-up:
• check if all the safety and fire regulations and guidelines in the
quick guide to the safety and fire regulations for fuel systems and all
components including ducts, valves, controls, pumps etc. regarding gas
tightness are followed
• check system pressure – if the system pressure is too low, increase the
pressure (with a low flow rate to reduce the volume of air introduced to
the system)
• check fuel level in the storage hopper (refill if it is necessary to allow
installation of the storage hopper cover)
• check fuel level - check if the storage hopper is free from foreign material
(stones, steel parts etc.) which may affect fuel conveying, burner
operation or cause damage to feeder components
• check flue system - check if all fire regulations are followed
• check wiring system
• check auxiliary equipment (e.g. swirl vanes, if installed)
• check boiler room ventilation system
• check boiler condition (closed door side, cleanouts, pipe stoppers,
etc. and gas tightness)
Leader in pellet boilers
d. Boiler start-up
The boiler (system) must be started by an authorized installer (valid authorized
service technician, a certificate issued by KOSTRZEWA is required - source:
www.service.kostrzewa.com.pl). Installation and trial run must be recorded in
the Warranty Card.
The user must notify the relevant authorities of a new boiler installation.
The relevant authorities will inform the user on any further procedures required
(e.g. scheduled inspections, cleaning).
Start-up procedure:
• check system pressure
• open flue gas valve or throttle (if installed)
• check fuel level in the storage hopper (refill as required)
• check fuel condition and quality (fuel must not contain foreign material
to avoid damage to the boiler and its accessories)
• check boiler room ventilation
• check boiler room lighting (suitable for boiler operation and repair)
• check access to places which require periodical maintenance (cleanout,
control, storage hopper, and burner).
• check leak tightness of hydraulic connection between the boiler and the
central heating system
• check gas tightness between the boiler and the flue
• check if the electrical cables were not damaged in transit
• connect the power supply, set boiler control system in service mode
• feed fuel from the storage hopper until it flows through the flexible duct
• press the main switch to activate the boiler control system - the control
system operates in automatic mode
• when starting from cold (also restarting after maintenance and cleaning)
close the heat transfer to the heating equipment to reach the dew point
faster (see boiler control system User Manual)
• at operating temperature connect the heating equipment in sequence
• visually check the system after a few days of operation (door and access
door, flue gas tightness)
Installation restrictions
Do not start the boiler, if one of the following applies:
• no commissioning of the boiler by the relevant authorities is scheduled
(if required)
• incorrect boiler or fuel feed system operation
• flue ducts not vented
• no water in the boiler
• faulty safety valve operation
• flue ducts blocked
• boiler insulation damaged
• safety devices and gauges performance issues
• auxiliary equipment performance issues
• fire hazard near the boiler.
Twin Bio Luxury Compact NE v01 User Manual – EN 01.19
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