Daikin EWWT100Q - Introduction; Precautions against Residual Risks

D-EIMHP01702-23_00EN- 13/72
1 INTRODUCTION
This manual is an important supporting document for qualified personnel, but it is not intended to replace such personnel.
Read this manual carefully before installing and starting up the unit.
Improper installation could result in electric shock, short-circuit, coolant leaks, fire or other damage
to the equipment or injure to people.
The unit must be installed by a professional operator/technician
Unit startup has to be performed by authorized and trained professional
All activities have to be performed according to local laws and regulation.
Unit installation and start up is abosolutely forbidden if all instruction contained in this manual are
not clear.
If case of doubt contact the manufacturer representative for advice and information.
Precautions against residual risks
1- install the unit according to the instructions set out in this manual.
2- regularly carry out all the maintenance operations foreseen in this manual.
3- wear protective equipment (gloves, eye protection, hard hat, etc.) suited to the work in hand; do not wear clothes or
accessories that can get caught or sucked in by flows of air; tie back long hair before entering the unit.
4- before opening the machine panelling make sure that it is firmly hinged to the machine.
5- the fins on heat exchangers and the edges of metal components and panels can cause cuts.
6- do not remove the guards from mobile components while the unit is operating.
7- make sure that mobile component guards are fitted correctly before restarting the unit.
8- fans, motors and belts drives might be running before entering, always wait for these to stop and take appropriate
measures to prevent them from starting up.
9- the surfaces of the machine and pipes can get very hot or cold and cause the risk of burn.
10- never exceed the maximum pressure limit (PS) of the water circuit of the unit.
11- before removing parts on the pressurised water circuits, close the section of the piping concerned and drain the fluid
gradually to stabilise the pressure at the atmospheric level.
12- do not use your hands to check possible refrigerant leaks.
13- disable the unit from the mains using the main switch before opening the control panel.
14- check that the unit has been grounded correctly before starting it.
15- install the machine in a suitable area; in particular, do not install it outdoors if it is intended for use indoors.
16- do not use cables with inadequate sections nor extension cord connections, even for very short periods or emergencies.
17- for units with power correction capacitors, wait 5 minutes after removing the electric power supply before accessing the
inside of the switch board.
18- if the unit is equipped with compressors with integrated inverter, disconnect it from the mains and wait a minimum of 20
minutes before accessing it to carry out maintenance: residual energy in the components, which takes at least this length
of time to dissipate, poses the risk of electrocution.
19- the unit contains pressurised refrigerant gas: the pressurised equipment must not be touched except during maintenance,
which must be entrusted to qualified and authorised personnel.
20- connect the utilities to the unit following the indications set out in this manual and on the panelling of the unit itself.
21- to avoid an environmental risk, make sure that any leaking fluid is collected in suitable devices in accordance with local
regulations.
22- if a part needs to be dismantled, make sure it is correctly re-assembled before starting the unit.
23- when the rules in force require the installation of fire-fighting systems near the machine, check that these are suitable for
extinguishing fires on electrical equipment and on the lubricating oil of the compressor and the refrigerant, as specified on
the safety data sheets of these fluids.
24- when the unit is equipped with devices for venting overpressure (safety valves): when these valves are triggered, the
refrigerant gas is released at a high temperature and speed; prevent the release of gas from harming people or objects
and, if necessary, discharge the gas according to the provisions of EN 378-3 and the local regulations in force.
25- keep all the safety devices in good working order and check them periodically according to the regulations in force.
26- keep all lubricants in suitably marked containers.
27- do not store inflammable liquids near the unit.
28- solder or braze only empty pipes after removing all traces of lubricant oil; do not use flames or other heat sources in the
vicinity of pipes containing refrigerant fluid.
29- do not use naked flames near the unit.
30- the machinery must be installed in structures protected against atmospheric discharge according to the applicable laws
and technical standards.
31- do not bend or hit pipes containing pressurised fluids.
32- it is not permitted to walk or rest other objects on the machines.
33- the user is responsible for overall evaluation of the risk of fire in the place of installation (for example, calculation of the fire
load).
34- during transport, always secure the unit to the bed of the vehicle to prevent it from moving about and overturning.
35- the machine must be transported according to the regulations in force taking into account the characteristics of the fluids in
the machine and the description of these on the safety data sheet.
36- inappropriate transport can cause damage to the machine and even leaking of the refrigerant fluid. Before start-up, the
machine must be checked for leaks and repaired accordingly.