IDEAL IMAX XTRA EL, Установка и обслуживание

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16
INSTALLATION
IMAX XTRA EL
- Installation & Servicing
12 GAS CONNECTIONS
The boiler gas supply pipe is terminated in a 2" BSP male taper
connection on the top RHS of the appliance.
A minimum working gas pressure of 15mbar (6" w.g.) must be
available at the boiler inlet with the boiler firing.
Fit a gas supply pipe NOT LESS THAN 2" BSP to the boiler.
Refer to Frame 2.
13 ELECTRICAL CONNECTIONS
Pressure drop from appliance inlet to gas valve inlet test point
320 395 470 545 620
Max Rate (mbar) 0.6 0.5 1.0 1.5 1.5
Min Rate (mbar) 0 0 0 0 0
Warning. This appliance MUST be efficiently earthed.
A mains supply of 230V 50Hz @ 7A is required. The supply
wiring MUST be suitable for mains voltage.
Connection should be made in a way that allows complete
isolation of the electrical supply - such as a double pole
switch, having a 3mm (1/8”) contact separation in both poles
serving only the boiler and system controls. The means of
isolation must be accessible to the user after installation.
When making mains electrical connections to the boiler it is
important that the wires are prepared in such a way that the
earth conductor is longer than the current carrying conductors,
such that if the cord anchorage should slip the current carrying
conductors become taut before the earthing conductor.
Two plastic conduit tubes are provided, to allow routing from
the installation connections on the front of the boiler to the rear
egress point.
One conduit should be used for 230V mains wires and one for
SELV wiring.
External wiring MUST be in accordance with the current I.E.E.
(BS7671) Wiring Regulations. For Ireland reference should be
made to the current ETCI rules for electrical installations.
For wiring external controls to the boiler, reference should be
made to the systems wiring diagram supplied by the relevant
manufacturer in conjunction with the connection diagram shown
in Frame 17.
Difficulty in wiring should not arise, providing the following
directions are observed:
1. The appliance must be wired with a permanent live supply.
External controls should NOT be wired in series with this
mains input. Controlling the mains input in this way will
prevent the pump over-run sequence and may cause
damage to the heat exchanger.
2. 230V AC outputs are provided and may be used to control
pumps or valves as required. They may also be used to
provide status signals into any external BMS. The function
of these outputs can be set in order to meet the function
required by the system.
3. 230V AC inputs are provided to enable the following
demands.
- Two heating demand inputs.
- One Heating and One Hot water demand input.
4. SELV inputs are provided to enable the following demands:
- Volts free input (OpenTherm)
- 0-10V input
- Outside Sensor
- Hot water tank thermistor
5. An OpenTherm control Bus is provided to enable control and
monitoring of the boiler by:
- Modulating sequencer Kit
- OpenTherm Room Control
- OpenTherm Compatible BMS
- OpenTherm Gateway
- BACNET
- MODBUS
- LONWORKS
6. Volts free contacts are provided for the following:
- Burner On
- Fault
7. An optional outside temperature sensor may be fitted
for outside weather compensation. See Frame 17 for
connection details.
8. A Safety Interlock Kit may be fitted to the boiler if required.
14 EXTERNAL WIRING
It is recommended that an isolation valve be fitted as close to the boiler as possible.
INST
ALLA
TION