GCH15010
80
Annual Maintenance Log Book
Contractor name
Engineer name
Site name
Site number
Cylinder unit maintenance record sheet
Warranty number
Model number
Serial number
No.
Mechanical
Frequency
Notes
1
Turn OFF water supply, drain potable circuit, remove mesh from strainer
clean and replace in strainer. *1
2
Drop the primary/heating system pressure to zero check and if necessary
top up the expansion vessel (1 bar). Air valve of expansion vessel is TR-
412.
5
Open the pressure relief valves. Check for unrestricted discharge to the
tundish and that the valves reseat correctly. Check there are no blockages
in the tundish and associated pipework and re-pressurise to 1 bar.
3
Check and if necessary top up the concentration of anti-freeze/inhibitor (if
used in the system).
4
-
6
Heat system and check pressure does not rise above 3 bar and no water
is released from the safety valves.
7
Release any air from the system.
8
the heat emitter does not rise when running the DHW mode.
Electrical
Frequency
Notes
1
Check condition of cables.
2
Controller
Frequency
Notes
1
2
Check operation of motorized valves ensure they reseat correctly.
3
Check battery power of wireless thermostat and replace if necessary.
Outdoor heat pump unit maintenance record sheet
Model number
Serial number
Mechanical
Frequency
Notes
1
Inspect grill and air inlet for trapped debris/damage.
2
Check condensate drain provision.
3
Check integrity of water pipework and insulation.
4
Check all electrical connections.
3
Check and record the operation voltage.
* Checks should be carried out once a year.
*1 Be sure to reattach the mesh after washing.
Note:
unit. This is especially important when installing on an existing system.
In addition to annual servicing, it is necessary to replace or inspect some parts after a certain period of system operation. Please see tables below for detailed instruc-
Parts which require regular replacement
Parts
Replace every Possible failures
Pressure relief valve (PRV)
Air vent (Auto)
Manometer
6 years
Water leakage
Parts which require regular inspection
Parts
Check every
Possible failures
Water circulation pump 1
50,000 hrs (7 years)
Water circulation pump
failure
Parts which must NOT be reused when servicing
* O-ring
* Gasket
