Section 3 - Pre-Installation Checks
PRE-INST
ALLA
TION
24
Installation and Maintenance
3.2.3 Maximum Pipe Length
Primary pipework must be correctly designed and installed to
enable the correct design flow rate to be achieved.
3.2.4 Water Quality Requirements
ᘐ
WARNING: Make sure that water intended for human
consumption complies with EU Directive 98/83/EC.
ᘐ
CAUTION: Due to the lower operating temperatures,
it is recommended that heat pump systems have
additional protection against oxidation and aggressive
chemicals.
ᘐ
CAUTION: Failure to adequately dose the heating
systems corrosion inhibitor will lead to the gradual
deterioration of the system performance over time and
reduce both the lifespan and efficiency of the product.
Refer to BS 7593:2019 - Code of practice for the preparation,
commissioning, and maintenance of domestic central heating
and cooling water systems for guidance on water quality and
treatment methods. Record water quality test results in the
Benchmark Section at the rear of the book.
The Logic Air pre-plumbed cylinder range is fitted with a
primary circuit system filter as standard. If the installation does
not include a Logic Air pre-plumbed cylinder an appropriately
sized and positioned system filter and strainer with a minimum
mesh size of 800 μ is required to be installed in the primary
circuit to the Heat Pump to prolong the life expectancy of the
system.
3.2.5 System Water Antifreeze Protection
ᘐ
WARNING: Do not use mono ethylene glycol. Use
Propylene glycol only.
ᘐ
CAUTION: Where any circuit pipework is exposed
to ambient temperatures of < 5 °C, antifreeze protection
must be installed. Failure to install adequate antifreeze
protection methods may lead to damage to the system.
Damage to systems which do not have adequate
antifreeze protection methods is not covered by warranty.
When the Heat Pump is exposed to freezing temperatures, the
primary heating circuit must either be:
• Charged with a glycol water mixture, refer to Section
5.2.2.4.
• Installed with antifreeze protection valves on both the inlet
and outlet of the Heat Pump refer to Section
5.2.2.4
.
ᘐ
WARNING: Do not install antifreeze valves if the
system has been charged with glycol or vice versa.
All exterior pipework must be insulated with UV resistance and
water proof pipe lagging.
A fill and flush valve must be installed when the system is
charged with Glycol.
Содержание Logic Air DHW IDEPLUHP180DUOPPSZ
Страница 80: ...80 Installation and Maintenance Appendix 1 1 SYSTEM SCHEMATICS 1 1 1 Schematics Key Legend...
Страница 81: ...Appendix 81 Installation and Maintenance 1 1 2 Logic Air Two Zone Pre Plumbed Cylinder with Integrated Buffer...
Страница 82: ...Appendix 82 Installation and Maintenance 1 1 3 Logic Air Single Zone Pre Plumbed Cylinder...
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