Duty Of Due Care Of The Operator; Requirements For Operating Personnel; Operating Personnel; Personal Safety Equipment - Honeywell NK300T Einbau- Und Bedienungsanleitung

1.5 Duty of due care of the operator

This tap was designed and constructed mindful of an assessment of the
hazards involved and with careful selection of the harmonised, prescribed
norms, also further technical specifications. It thus complies with state-of-
the-art technology and guarantees an optimal standard of safety.
This safety can only be attained in operational practice when all the required
measures have been taken. It is the responsibility of the operating company
of the tap to plan these measures and control their execution.
In particular, the operator must ensure that
• the tap is only used according to regulations
• the tap is operated only when it is in perfect, functioning condition.
• the required personal safety gear for operating, maintenance and repair
personnel is available and is used
• the operating manual is always kept in good, readable condition and is
completely accessible at the site of usage of the tap.
• the tap is assembled, started up, operated, maintained and shut down
solely by sufficiently qualified and authorised personnel.
• this personnel is regularly instructed in all relevant question of work safety
and environmental protection, and has also read and understood the
operating manual and particularly the safety instructions it contains.
• none of the safety and warning signs attached to the tap are removed and
all remain legible.
• in an assessment of hazards (according to the Safety at Work Act § 5),
the personnel shall be informed on further dangers which ensue because
of the special working conditions at the usage site of the tap.
• all further information and safety instructions which arise from the hazard
assessment process shall be summarised in operating instructions
(according to the work equipment regulation § 6).

1.6 Requirements for operating personnel

1.6.1 Operating personnel

This tap may only be assembled, started up, operated, maintained and shut
down by persons who have been trained, instructed and authorised to do so.
The relevant authorisations of the personnel are to be specified by the
operating company in the form of an operating instruction.
Over and above this, special qualifications are required for the following
tasks:
• Only electricians may perform work on electrical equipment.
• Assembly, maintenance, servicing and repair work may only be
performed by qualified, specialist personnel
The basic regulations on work safety and accident prevention are to be
observed.
1.6.1.1 Qualified personnel
Qualified personnel are persons who on account of their training, experience
and instruction also their knowledge of the relevant norms, regulations, acci-
dent prevention regulations and operating conditions, including those
persons responsible for the safety of the system, have been authorised to
perform the relevant and required tasks, meanwhile being able to recognise
and avoid dangers. This includes required knowledge of First Aid measures
and the local ambulance services and facilities.

1.7 Personal safety equipment

No personal safety equipment is required to operate the tap.
Honeywell GmbH
GB

2. Description of function

2.1 Intended use

If used not according to intention, the tap can be a danger to persons,
systems in the surroundings and to the environment.
• Usage in closed media systems in interiors (e.g. heating circuits) .
• For monitoring and maintaining the system pressure within the defined
limits.
• Usage only in connection with components and external devices recom-
mended and authorised by Honeywell.
• When filling and connecting up the media system with a drinking water
supply, a suitable system separator is to be set upstream according to
EN1717.
• Suitable filter against particles ≥ 600μm set upstream.

2.2 Non-intended use

The tap is not designed for outside usage. Temperature, light and moisture
influences can lead to malfunctions and damage to devices.
• Do not use the tap outside.
• Operate 230V plug only in dry interiors.
• Only operate the tap with authorised Honeywell power pack.
• Only use the tap as intended in regulations.
• Do not fill aggressive or flammable media into the media lines of the
system.
• No mechanical stress on housings (e.g. by depositing objects or as a
step).
• Do not cover the tap and power pack, so as to avoid heat build-up.
• Do not perform any external modifications on the device housing. Do not
paint housing parts and screws!
• Do not dismantle the tap more than the extent required by installation and
maintenance.

2.3 Task

The refill unit continually monitors the pressure in a connected system, e.g. a
heating circuit, and maintains it automatically.

2.3.1 Function

A sensor continually monitors the pressure in the connected system.
Should it drop under a adjustable limit value, a valve opens, so that the
system is automatically supplied via a connected media supply until a speci-
fied value is reached.
Moreover, the refill unit is provided with a mode for the first filling of systems.
The rise in pressure is also monitored during the filling process. If this is not
forthcoming for instance because of a leak in the system, filling is automati-
cally interrupted.
A further sensor registers the volume supplied to the system via the refill unit
("totalizer function"). The current value is saved hourly, meanwhile is
secured against power failure. Any changes since the last save process can
lead to a somewhat lower display value after a voltage reset. Monitoring the
value offers the extra option of registering "creeping" losses in the system.
The totalizer value can be reset to zero manually.
Operation of the device is performed through 3 buttons, a 7-segment display
and 3 status LEDs.
Upcoming malfunctions are signalled optically and acoustically. An option
exists to report upcoming malfunctions further via a relay contact.
15 MU1H-1551GE23 R0911