Hamworthy Warmwell 120, Инструкция по установке, наладке и обслуживанию

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HAMWORTHY HEATING LTD WARMWELL 500001091/F
details regarding connection to the electricity supply
are given in
BS EN 60335, Part 1 or BS 3456, Part
201 .
The mains power supply MUST NOT be switched
by a time clock
, especially if a single header pump kit
is utilised. The Warmwell boiler has a remote stop/start
loop which can be used to operate the boiler(s) under
a timed regime. The boiler control provides a 230V ~
signal that can be fed through a volt free contact for
operation. Refer to Figures 8.12 (p14) and 9.1 (p15)
for typical site wiring connections. See
BS 6644 for
further information. DO NOT feed mains voltage
onto these terminals.
9.1 Site Wiring
Access to the controls is achieved by rotating the ¼
turn latch and removing the door. A 20mm dia.
knockout is provided in each side panel if required for
electrical connections. Any other routing of site cables
should ensure that cables do not pass close to the
boiler flue hood or that any cable trunking does not
interfere with normal air circulation and supply ducts.
A removable bracket is supplied with every Warmwell
boiler having three 20mm dia. holes for electrical cable
anchorage. A plug and socket arrangement is utilised
for the site terminal connections, the plug terminals
being attached to the removable bracket.
NOTE! Rigid conduit MUST NOT be connected to the
bracket as this will prevent removal. Care must be
taken to ensure correct connections are made to the
relevant terminals before applying power.
Refer to Figures 8.12 (p14) and 9.1 (p15) for typical
wiring diagram.
9.2 Indication Signals and Volt Free Contacts
Volt free contacts are provided to enable external
indicator lights or alarms to derive signals for normal
run, overheat and lockout.
Note:- These external circuits MUST be isolated
before obtaining access to the controls for any service
or maintenance procedures to be carried out.
9.3 Milton Boiler Sequence Control and
Sequencing Interface Module (Optional)
Refer to the Milton boiler sequence control manuals for
details of its installation.
The sequencing interface module is supplied as a kit
for site assembly to the boiler control panel(s). Refer to
the installation instructions supplied with the kit for
assembly details.
The sequencing interface module incorporates a
10way plug/socket screw terminal block to make the
site wiring connections. Refer to Figure 8.12 (p14) and
the Milton boiler sequence control installation manual
for wiring connection details.
Consideration should also be given to sizing of the
safety valve(s) in the system. See
BS 6759 : Part 1 for
information.
See also
BS 6880 : Part 1 for design considerations.
8.12 Modular Boiler Control Schemes
For modular boiler installations, Hamworthy Heating
can supply an optional Milton boiler sequence control
system.
This system comprises a wall mounted ‘Boiler
Sequence Control’ unit, and a ‘Sequencing Interface
Module’ unit mounted to the fascia of each boiler’s
control panel, which provides on/off or high/low
switching of the boiler. The Boiler Sequence Control
communicates with the ‘Sequencing Interface
Modules’ via a 2 wire data BUS. PT1000 type water
flow temperature, optional room temperature and
optional outside air temperature sensors are available,
which are wired to the Boiler Sequence Control. Refer
to Figure 8.12 and the Milton boiler sequence control
and sequencing interface module instructions for
further details.
Where a modular installation comprises of a
combination of Purewell and Warmwell boilers, the
Warmwell condensing boilers should always be the
lead boilers.
Alternatively, the boilers can be controlled on/off or high/
low via the remote on/off and high/low control loops, by
a non-HHL control system - see Figure 8.12 (p14).
9.0 ELECTRICAL SUPPLY
WARNING:
THIS APPLIANCE MUST BE
EARTHED.
Wiring external to the boiler must be installed in
accordance with the IEE Regulations and any local
regulations, which apply. Wiring must be completed in
heat resistant 3-core cable. (Size 1.0mm² csa). Boilers
are normally supplied suitable for 230 volts, 50Hz.
Internal fuse rating is 6.3A (T rated). External fuses
should be 10A for all single boiler sizes.
The method of connection to the mains electricity
supply must facilitate complete electrical isolation of
the single boiler/battery with a contact separation of at
least 3mm in all poles.
This appliance must be isolated from the mains
electricity supply in the event of electric arc
welding being carried out on any connecting
pipework.
A mains isolator must be provided adjacent to the
boiler in a readily accessible position. The supply
should only serve the boiler.
NOTE! Volt free contact electrical supplies must also
be isolated when fitted (see note on fascia). Further
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