CALEFFI SATK Serie Manuel D'installation page 4

Installation
The SATK series HIU is designed for installation in a protected
domestic (or similar) environment and must not therefore be installed
or used outdoors, i.e. in areas directly exposed to the weather.
Outdoor installation may cause malfunctioning and hazards.
If the appliance is enclosed inside or between cabinets, sufficient
space must be provided for routine maintenance procedures. It is
advisable to avoid positioning electrical devices under the HIU to avoid
the risk of damage in the event of leaks from hydraulic fittings. If this
advice is not heeded, the manufacturer cannot be held responsible for
any resulting damage. In the event of a malfunction, fault or incorrect
operation, the appliance should be deactivated; contact a qualified
technician for assistance.
Preparation
After having established the point of installation of the device, perform
the following operations:
• Mark the holes required to secure the HIU to the wall
• Mark the position of the hydraulic connections.
Check the measurements again and begin laying the following lines:
1. connection to the central system line
2. heating circuit connection
3. domestic water circuit connection.
Before installation, it is recommended to carry out accurate flushing of
all the pipes of the system in order to remove any residue or impurities
that could endanger correct operation of the HIU. Fix the HIU to the
wall.
N.B.: the wall anchors can only guarantee effective support if inserted
correctly (in accordance with good technical practice) into walls made
of solid or semi-solid bricks. If working with walls built using perforated
bricks or blocks, mobile dividing panels or any masonry walls other
than those indicated, a preliminary static test must be carried out on
the support system.
Hydraulic connections
Hydraulic connections to the centralised line must be made using
manual shut-off valves, which allow any necessary maintenance work
to be carried out without having to empty the centralised system.
It is advisable to install manual shut-off valves also on the lower
terminals for connection to the apartment heating system.
Commissioning
Filling the central heating system
Open the shut-off valves on the connections to the centralised line
and, in the central heating system, proceed with charging the system
to the design pressure. Once these procedures are complete, vent
the system and check its pressure again (repeat the filling process if
necessary).
SAFETY INSTRUCTIONS
WARNINGS
These instructions must be read and understood before installing and servicing the device.
IMPORTANT! FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN A SAFETY HAZARD!
IMPORTANT!
THE PRODUCT SUPPLIED WITH THIS INSTRUCTION SHEET WILL BE DESIGNATED "DEVICE" HEREINAFTER
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, commissioned 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, take care not to subject the threads to excessive mechanical stress. Over time this could result in breakage, with water
leaks causing damage and/or injury.
6 Water temperatures higher than 50°C may cause severe burns. When installing, commissioning and servicing 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, adequate water filtration and treatment must be assured upstream from 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 combination of the device with other system components must be made taking the operational characteristics of both units into consideration.
An incorrect coupling could compromise the operation of the device and/or system.
LEAVE THIS MANUAL AS A REFERENCE GUIDE FOR THE USER. DISPOSE OF THE PRODUCT IN COMPLIANCE WITH CURRENT LEGISLATION.
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.
Domestic hot water temperature configuration
For a correct setting of the desired temperature, check the complete
opening of the adjustment handwheel (A) and set the thermostatic
mixing valve turning its knob (B). Temperature range which can be
set 35–65 °C.
Maintenance
All maintenance procedures should be carried out by an authorised
technician.
Regular maintenance guarantees better efficiency and helps to save
energy.
Before carrying out any maintenance, repairs or replacement of parts,
proceed as follows:
- Close the shut-off valves
- Empty the HIU using the drain cock provided.
To clean the DCW strainer:
• unscrew the connection nut in order to reach the internal strainer;
• remove the strainer from its seat and clean it under running water;
• place the strainer back in its seat.
Exchanger replacement
- Remove the exchanger, loosening the 2 hex socket head screws
fixing it in place (C)
- Replace the heat exchanger and the O-rings.
- Tighten the two fixing screws (C).
A
B
C