VITAL ENERGY EUROPE vThermt, Инструкция по установке, пусконаладке и обслуживанию

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H E A T I N T E R F A C E U N I T C O M M I S S I O N I N G
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H E A T I N T E R F A C E U N I T M A I N T E N A N C E
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COMMENTS
Commissioning
witnessed by:
On behalf of:
Print name:
Company:
Signature:
Date:
Commissioning
engineer:
9. MAINTENANCE
COMPONENT OPERATION SERVICE FREQUENCY
HIU Check HIU case for damage Every 2 years
Check all HIU fixings are secure Every 2 years
Check all connections for leaks Every 2 years
Check all pipes for mechanical damage and corrosion Every 2 years
Check that the DHW and HTG flow temperatures are correct Every 2 years
Check that the water in secondary systems (take sample)
has been treated in accordance with BS 7593 Code of
Practice for treatment of water in domestic hot water
central HTG systems Every 2 years
Wiring Check that all electrical wiring is in good condition, tidy and
safe Every 2 years
Strainers Check and clean all strainers (Primary and Secondary) Every 2 years
Safety Valves Check the safety valve operation Every 2 years
Heating Pressure Check HTG system pressure is between 1.0 and 1.5 bar. Ad-
just pressure if required. Every 2 years
Heat Meter Check the heat meter for error messages and ensure the
unit is fully functional Every 2 years
Isolation Valves Exercise all isolation valves, ensuring that they operate
correctly Every 2 years
Filling Loop Ensure that the space HTG filling valve is in the closed posi-
tion. Flexible hose must be removed after filling Every 2 years
Bypass If present, check that the flushing bypass valve is closed Every 2 years
Pump Check pump setting is Proportional Pressure Auto Adapt Every 2 years
HTG Control Valve Remove actuator from HTG control valve, check setting of
the valve is correct and matches HIU label, see section 8.4.2
Check that the pin is moving freely before replacing the
actuator Every 2 years
DHW Control
Valve Remove actuator from DHW control valve, check setting
of valve is correct and matched HIU label, see section 8.4.1.
Check that the pin is moving freely before the actuator Every 2 years
ON / OFF Safety
Valve Remove actuator from keep warm valve, check setting, see
section 8.4.1
Check pin is moving freely before replacing actuator Every 2 years
Expansion Vessel
Test Preloaded Pressure within expansion vessel - 1 bar Every 2 years
Checks When all checks are complete, open valves on HIU and
restore electrical connection:
1. Do not operate heating or DHW, monitor heat meter
return temperature until stable and record temperature
2. Check DHW temperature, see 8.4.5 and record
3.
Check HTG temperature, see 8.4.4 and record
Always follow safety instructions with regard to isolation before commencing any work on the HIU.
Isolate mechanically and electronically.
VALVE MAKE
SETTINGS (MARK BELOW)
DHW
Temperature (°C)
Danfoss
DHW Flow Setting
(%)
Heating
Temperature (°C)
Danfoss
Heating Flow
Setting (%)
Bypass
Temperature (°C)
Danfoss
Bypass Flow
Setting (%)
20 30 40 60 80
min
1 2 3 4
5 6
0
min
90 100 50 70
20
30 40 60 80
min
1 2 3 4 5 6
0
min
90 100 50 70
20 30 40 60 80
min
1 2 3 4 5 6
0
min
90 100 50 70