KINGSPAN ALBION
RELIABLE HOT WATER CYLINDERS
17
GENERAL
Servicing should only be carried out by competent installers
and any spare parts used must be
Kingspan
approved. NEVER
bypass any safety devices or operate the unit without them
being fully operational.
DRAINING
Isolate from the electrical supply to prevent the immersion
heaters burning out. Turn off the boiler. Isolate the unit from
the cold mains. Attach a hose to the draining tap ensuring that
it reaches to a level below the unit (this will ensure an efficient
syphon is set up and the maximum amount of water is drained
from the unit). First open the hot tap closest to the unit and
then open the draining tap.
WARNING: WATER DRAINED OFF MAY BE VERY HOT!
IMPORTANT: After draining the cylinder do not close the hot
tap until the cylinder has fully cooled, failure to follow this
instruction may result in damage to the cylinder and will
invalidate the guarantee.
ANNUAL MAINTENANCE
ULTRASTEEL PLUS requires an annual service in order to
ensure safe working and optimum performance. It is essential
that the following checks are performed by a competent
installer
on an annual basis. Commonly this is done at the same time
as the annual boiler service.
1)
Twist the cap of the expansion relief valve on the inlet
control set and allow water to flow for 5 seconds. Release
and
make sure it resets correctly. Repeat with the pressure
/ temperature relief valve. In both cases check that the
discharge pipework is carrying the water away adequately. If
not, check for blockages etc. and clear.
WARNING: THE WATER DISCHARGED MAY BE VERY HOT!
2)
Check that any immersion heaters fitted are working
correctly and that they are controlling the water at a
temperature between 55°C and 65°C.
3)
Recharge the expansion space by following the instructions
on page H1. Turn off the water supply to the unit and open a
hot tap and drop the pres
s
ure in the cylinder. Hold open T&P
valve until flow stops. Release T&P valve and turn water sup
p
ly
back on. When water flows from hot tap turn tap off. Check for
any leaks.
4)
Unscrew the head on the inlet control set and clean the
mesh filter within.
5)
The Benchmark Log Book supplied with this unit should be
updated at each service.
YOUR GUARANTEE MAY BE VOID WITHOUT PROOF OF
ANNUAL SERVICING.
SERVICING
FLUSHING & FILLING
Check all the connections for tightness including any factory
made connections such as the immersion heater and the
temperature and pressure relief valve. Before filling, open
the hot tap furthest away from the ULTRASTEEL PLUS to
let air out. Open the cold main isolation valve and allow the
unit to fill. When water flows from the tap allow it to run for
a short while to flush through any dirt, swarf or flux residue.
Close the tap and open every other hot tap in turn to purge
all remaining air.
DIRECT UNITS
After filling with water and after sterilisation liquid has
been purged, switch on the power to the immersion heaters
and allow the unit to start to heat. The immersion heater
is supplied preset at 55°C. Turning fully to + sets to approx
65°C. Allow unit to heat up, adjust the thermostat so that
the heater switches off at 60°C. Record information on
commissioning check list (Page 26).
INDIRECT UNITS
Consult the boiler manufacturer’s commissioning
instructions and fill the primary circuit. Ensure the lever on
the two port valve is set to the filling position. When full,
move the lever back. Switch the programmer to Domestic
Hot Water (DHW) and allow the unit to start to heat. Adjust
the dial of the dual thermostat to between 55°C and 65°C
as required. Allow unit to heat up, adjust the thermostat so
that the heater switches off at 60°C. Record information on
commissioning check list (Page 26).
STORAGE TEMPERATURE
The recommended storage temperature for both direct
and indirect cylinders is 60-65°C. In hard water areas
consideration should be given to reducing this to 50-55°C.
In many healthcare applications the guidance on Legionella
control and safe water delivery temperatures will require
storing the water at 60-65°C, distributing at 50- 55°C
and using thermostatic mixing valves to control the final
temperature. For details consult the NHS Estates Guidance
on safe hot water temperatures.
SAFETY VALVE CHECKS
During heat-up there should have been no sign of water
coming from either the expansion relief valve or the
temperature/pressure relief valve. Now hold both of these
safety valves fully open, allowing as much water as possible
to flow through the tundish. Check that your discharge
pipework is free from debris and is carrying the water away
to waste efficiently. Release the valves and check that they
reseat properly. On Completion of commissioning, fill in the
Benchmark check list and leave with the house owner.
BENCHMARK SCHEME
The installer must follow the Benchmark code of practice for
the Benchmark certification to be valid. The benchmark code
of practice can be found on the internet using the following
internet site www.centralheating.co.uk and follow links.
COMMISSIONING
