This will involve a drain-down of the calorifier and strip-down of gauges, valves, and safety valve.
Strip down all gauges and re-calibrate.
Strip down safety valve - clean and check, re-assemble and test.
Strip down control valve - examine seats, re-assemble, set and test.
Drain down calorifier, remove examination lids and check internal condition for sludge deposition and corrosion.
Clean all sludge and debris.
Non-return valves:
Clean strainers strip and check non-return valve.
Re-assemble calorifier and fill with mains cold water, re drain, refill.
Domestic hot water must remain isolated during pasteurisation.
Pasteurise the contents by raising the water temperature to 70 deg C or as close as possible and leave to stand for a min of 1 hours.
Allow water temp to fall back to 60 deg C before returning calorifier to service.
Ensure Legionella log book is filled in for each calorifier.
Restore the system to line
RECORD SHEET C – LEG28 MUST BE FILLED IN AND RETURNED TO THE AUTHORISED PERSON [WATER]
Isolate all electrics and water services to plate and drain down.
Remove bolts and follower (front metal) plate.
Remove stainless steel plates carefully, keep in correct sequence of plates.
Carefully clean each plate 1 by 1 with a soft brush and a suitable detergent (washing up liquid is adequate)
NEVER USE A STEEL BRUSH, SCRAPPER, SAND PAPER OR ANYTHING OF THE LIKE Rinse with cold water to remove the detergent.
Cleaning must be done carefully so as not to disturb the EPDM rubber gaskets.
If heavy deposits, then submerse in a bath of detergent.
Re-mount plates in same order and position as they were before.
Make sure all bolts are tightened equally attaining equal measurements across the plate at top, middle and bottom.
Refill and test for correct operation and working temperature as to HTM04-01.
Check safety valves and expansion vessel (as per calorifier 12 month check)
RECORD SHEET C – LEG01 MUST BE FILLED IN AND RETURNED TO THE AUTHORISED PERSON [WATER]
All pipework & valves in plantroom in good condition
YES / NO
If un-vented system - expansion vessel pressurised ok
YES / NO
Check & strip check valves - working correctly
YES / NO
Unbolt plates and clean (with detergent and soft brush)
YES / NO
Re-bolt plate in order and tighten equally
YES / NO
Refill and test - all ok
YES / NO
Plate held at 70oC by [initials]:
Hours the plate was held at 70oC:
Plate put back in service by [initials]:
Date plate put back in service:
Temperatures when put back into service:
Flow temperature:
Return temperature:
Cold water temperature
Observation and comments:
I, the undersigned, have completed the works outlined above:
Competent Person
Name:
Signature:
Date:
Authorised Person [Water]
Name:
Signature:
Date:
Additional docket numbers issued:
PPM:
CALORIFIER INSURANCE INSPECTION
PPM Ref:
LEG29
Frequency:
Every 2 years
Carry out maintenance to prepare for insurance inspection of calorifier.
This will involve a drain-down of the calorifier and strip-down of gauges, valves, and safety valve.
Strip down all gauges and re-calibrate.
Strip down safety valve - clean and check, re-assemble and test.
Strip down control valve - examine seats, re-assemble, set and test.
Drain down calorifier, remove examination lids and check internal condition for sludge deposition and corrosion.
Clean all sludge and debris.
Non-return valves:
Clean strainers strip and check non-return valve.
Re-assemble calorifier and fill with mains cold water, re drain, refill.
Domestic hot water must remain isolated during pasteurisation.
Pasteurise the contents by raising the water temperature to 70 deg C or as close as possible and leave to stand for a min of 1 hours.
Allow water temp to fall back to 60 deg C before returning calorifier to service.
Ensure Legionella log book is filled in for each calorifier.
Remove safety valve and overhaul.
Remove heater battery.
Inspect battery, tube plate and cover.
Clean out calorifier shell.
Strip down and all gauges and re-calibrate.
RECORD SHEET C – LEG29 MUST BE FILLED IN AND RETURNED TO THE AUTHORISED PERSON [WATER]
Procedure:
CALORIFIER INSURANCE INSPECTION RECORD SHEET
Frequency:
Every 2 years
Acceptance date:
Oct’12
File &
Form Ref:
C - LEG29
Next review date:
Oct’14
Property:
Location:
System Reference:
DHW generator
Id. No.:
Date:
Time:
TASK
COMPLY
(YES or NO)
Gauges working correctly
YES / NO
Examine controls - working correctly
YES / NO
Isolation valves operating correctly
YES / NO
Safety valve operating correctly
YES / NO
Shunt pump operating correctly
YES / NO
D.H.W. secondary pump operating correctly
YES / NO
Primary heating pump operating correctly
YES / NO
Safety valve overhaul working correctly
YES / NO
Strip and inspect heater battery working correctly
YES / NO
All pipework & valves in plantroom in good condition
YES / NO
Safety valve overhaul working correctly
YES / NO
Strip & inspect heater battery working correctly
YES / NO
If un-vented system - expansion vessel pressurised ok
YES / NO
Check & strip check valves - working correctly
YES / NO
Drain down time:
Cleaned out by [initials]:
Sacrificial rod replaced?
Start up procedure by [initials]:
Yes / No
DHW generator held at 70oC by [initials]:
Hours DHW generator at 70oC:
DHW generator put back in service by [initials]:
Date DHW generator put back in service:
Observation and comments:
I, the undersigned, have completed the works outlined above:
