Installation & Maintenance Instructions for an unvented
hot water cylinder with internal thermal expansion
Hot Water
Energy
Storage
Unvented Cylinder
SEPT 2018
3
STORAGE PRIOR TO INSTALLATION
The unvented cylinder should be stored in its original
packaging in an upright position in an area free from
excessive damp.
HANDLING PRODUCT
The unvented cylinder should be carried upright where
possible. Assessements of risks for carrying the cylinder
should be conducted. Use more than 1 person for carrying
where appropriate. Always follow latest guide lines for lifting
techniques, to avoid injury and damage to the product.
WATER SUPPLY
The unvented cylinder operates at 3.0 bar (controlled by the
inlet control set) and is capable of delivering over 50 litres per
minute. The high quality inlet control set has been designed
to make the most of the flow rates available, however the
performance of any unvented system is only as good as the
mains water supply. The maximum possible water demand
should be assessed, taking into consideration that both
hot and cold services are supplied simultaneously from the
mains.
The water supply should be checked to ensure it can
meet these requirements. If necessary, consult the local
water company regarding the likely pressure and flow rate
availability.
If measuring the water pressure, note that a high static
(no flow) mains pressure is no guarantee of good flow
availability. In a domestic installation 1 bar and 25 l/min.
should be regarded as the minimum. The maximum mains
pressure that the inlet control set can accept is 12 bar.
Consideration should be given to upgrading existing
1/2” (15mm) cold mains pipework to a larger size if the
recommended minimum pressure/flow rate is not being
achieved.
ELECTRIC SUPPLY
The unvented cylinder requires 240 Volt electrical supply
for the immersion elements. The electrical supply to each
immersion heater must be fused at 13A via a double pole
isolating switch to BS 60335. The cable must be at least
2.5mm
2
heat resistant (85°C HOFR) sheathed flex complying
to BS EN 50525-1.
UNPACKING THE UNIT
The unvented cylinder comes complete with the fittings
required to complete the installation. Please see over for
component content list.
High flow rate inlet control set 3.0 Bar
Pressure reducing valve 8 Bar Expansion
relief
Spare part No. 024545
Temperature and pressure relief valve
10 Bar
Spare Part No. VALVE3/4ALT10
Acetal tundish 15 x 22 mm
Spare Part No. TUNDPL15ALT
Two port valve
Spare Part No. VALVE2PORTH
High limit thermostat
Spare Part No. STATHIGHALT
Immersion heater
Spare Part No. 025415
Installation book
Spare Part No. 026447
Kingspan
Installation & Maintenance Instructions
for an unvented hot water cylinder with
internal thermal expansion
Customer Service Department
Kingspan Environmental
Tadman Street
WAKEFIELD
WF1 5QU
TEL: 0345 260 0258
Email: [email protected]
www.kingspan.com
Part No: 026447 -
SEPT 2017
Hot Water Energy Storage
Unvented Cylinders
GB & NI
