2
WARNINGS
These instructions must be read and understood before installing and maintaining the device.
IMPORTANT! FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN A SAFETY HAZARD!
1 The device must be installed, commissioned and maintained by qualified technical personnel in accordance with national regulations and/or relevant local
requirements.
2 If the device is not installed, pre-run checked and maintained correctly in accordance with the instructions provided in this manual, it may not work properly and
may endanger the user.
3 Clean the pipes of any particles, rust, incrustations, limescale, welding slag and any other contaminants. The hydraulic circuit must be clean.
4 Make sure that all connection fittings are watertight.
5 When connecting water pipes, make sure that threaded connections are not mechanically overstressed. Over time this may result in breakage, causing water
damage and/or personal injury.
6 Water temperatures higher than 50°C may cause severe burns. When installing, commissioning and maintaining the device, take the necessary precautions so
that these temperatures will not be hazardous for people.
7 In the case of particularly hard or impure water, there must be suitable provision for filtering and
treating the water before it enters the device,
in accordance with
current legislation. Otherwise the device may be damaged and will not work properly.
8 Any use of the device other than its intended use is prohibited.
9 Any coupling of the device with other system components must be made while taking the operational characteristics of both units into consideration.
10 An incorrect coupling could compromise the operation of the device and/or system.
IMPORTANT: Risk of electric shock. Live parts. Shut off the electric supply before opening the device box.
1 During installation and maintenance operations, always avoid direct contact with live or potentially hazardous parts.
2 The device must not be exposed to water drops or humidity, direct sunlight, the elements, heat sources or high intensity electromagnetic fields. This device cannot
be used in areas at risk of explosion or fire.
3 The device must be connected to an independent bipolar switch. If work has
to be done on the device, cut off
the electric supply first. Do not use devices with
automatic or time reset, or which may be reset accidentally.
4 Use suitable automatic protection devices in accordance with the electrical characteristics of the region where the device is installed and in compliance with current
legislation.
5 The device must always be earthed before it is connected to the electric supply. If the device has to be removed, always disconnect the earth connection after
disconnecting the electric supply conductors. Check that the earth connection has been made to the highest of standards under applicable legislation.
6 Electrical installation must only be carried out by a qualified technician, in accordance with legal requirements.
7 The device does not contain asbestos nor mercury.
LEAVE THIS MANUAL AS A REFERENCE GUIDE FOR THE USER. DISPOSE OF IN ACCORDANCE WITH LOCAL REGULATIONS. THE MANUFACTURER
RESERVES THE RIGHT TO CEASE PRODUCTION AT ANY TIME AND TO MAKE ANY CHANGES DEEMED USEFUL OR NECESSARY WITHOUT THE
OBLIGATION OF PRIOR NOTICE.
Key to symbols
SAFETY INSTRUCTIONS
Primary circuit flow
Primary circuit return
Domestic hot water outlet
Domestic cold water inlet
Low temperature circuit flow
Low temperature circuit return
Medium temperature circuit flow
Medium temperature circuit return
High temperature circuit flow
High temperature circuit return
NOTES:
1 Install water hammer arresters to compensate for any overpressure in the domestic water circuit;
2 In the presence of hot water recirculation or if a non-return valve is fitted into the domestic cold water inlet, provision must be made to accomodate the expansion
of the water contained within the system and the heat interface unit.
3 All hydraulic connections must be checked before pressurising the system. Vibration during transport may cause the connections to become loose. DO NOT APPLY
EXCESSIVE TIGHTENING TORQUE otherwise the components may be damaged.
For the updated version of the technical documentation refer to www.caleffi.com
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