3
Installation
3.1 Handling
Care should be taken when handling the Polywarm-Maxi cylinders to avoid damage to
the outer insulation.
Models 800 and larger, are supplied with lifting points on the top of the cylinder and
models 1500L and larger are fitted with cutouts in the base support ring to
accommodate fork lift truck access.
3.2 Position
The position chosen for installation must be capable of supporting the unit when full of
water and it is important to ensure that the unit is level, true and vertical to avoid the
possibility of difficulties with air trapping and or locking in primary coils.
4 Connections
Care must be taken when making pipe connections to the tank to avoid any undue
loading of connections. Pipework must be adequately supported to avoid any undue
loading being applied to the cylinder and its connection points.
Note: ensure that any redundant tappings are capped off prior to filling the system.
After a few days of operation it is good practice to check the integrity of all joints
including the tightness of the inspection flange bolts, accessible by removing the cover.
5 PWC1 & 2 models - Primary Coils
Circulation through primary coils should always be pumped, refer to the technical data
for flow rates. The PWC range is not suitable for gravity circulation.
6 Self cleaning fluxes
If any joints on copper pipes local to the cylinder are soldered, then avoid excessive use
of self cleaning fluxes.
7 Installation of Immersion Heaters
It is important to ensure that any immersion heaters are installed with the temperature
control and high limit thermostats located so that they are positioned above the heating
elements and can detect the heat input from the heating elements.
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3.3 Installation and Maintenance
Make sure that the premises where the storage tank(s) are to be installed have suitable
openings to allow their free passage to the outside without any need for demolition.
The warranty does not cover any costs de-rived from a failure to observe this point.
