Specifications

Installation & Servicing Instructions E-Range
18
8 Electrical connection
The appliance complies with the CE Machinery Directive 89/392/EEC. The EC Low Voltage
Directive 72/23/EEC and the EC EMC Directive 89/336/EEC.
A 230V -50Hz mains electrical supply is required fused externally at 5A.
The installation must continue to comply with:
United Kingdom:
- the national rules for electrical installations.
Ireland:
- the ECTI national rules for electrical installations
The boiler electrical supply must be installed to the latest I.E.E. regulations. If the unit
is hard wired (moulded plug removed) it must be provided with a fused (5A) local isolator
with a contact separation of 3mm minimum on all poles for servicing. Observe polarity
and ensure that wiring is correctly restrained.
The following general stipulations also apply:
- No changes may be made to theinternal wiring of the appliance;
- All connections should be designed in accordance with the enclosed regulations.;
- Should it be necessary to change it, the mains power supply cable may only be
replaced with an Rinnai mains power supply cable (item No. S4477300).
The Rinnai room thermostat and controls (Open Therm) must be connected to
their allocated connections. All other types or makes of room thermostats or
controls which are used must have a Volt free contact.
When using an on/off thermostat or control, it is possible that an anticipating resistance
must be installed in order to prevent too high temperature fluctuations. As a standard
rule this means mercury thermostats. This resistance wire can be ordered by your
supplier and must be connected to clamps 23 and 27. The anticipating resistance in the
room thermostat has to be set at 0.11 A.
For more detailed questions regarding the components which are not supplied, contact Rinnai.
If the Rinnai water heater and boiler operating together would exceed the capacity of the
gas meter it is possible to control the system with a Domestic Hot Water flow switch.
This switch, when installed in the cold water flow to the Rinnai water heater and wired to
break the DHW flow switch electrical connection, will prevent the boiler from operating
when the water heater is operating. This will ensure that only one appliance can operate
at once and the capacity of the gas meter will not be exceeded.
boilercombinaties tabel 6
Connection terminalE-Series
Connection terminal figure 7
Mains power supply
230 Volts for external control 230 Volts Open Therm room thermostat On/off thermostat or control (Volt free)
Outside sensor
Domestic Hot Water Flow Switch
24 Volts maximum 100 mA