Supplied By www.heating spares.co Tel. 0161 620 6677
4
EXPLANATION OF FEATURES
Although the Vokera Option has been designed for
simplicity of use, it utilises the latest in boiler technology,
enabling a host of functions to be carried out simultane-
ously.
FROST PROTECTION MODE
Should the temperature of the appliance fall to 7ºC. the
pump will be activated for a period of 15 minutes or until
the temperature of the appliance rises to 10ºC. This will
be repeated every two hours. Should the temperature of
the appliance fall to 5ºC. the burner will ignite until the
appliance temperature rises to 30ºC.
AUTOMATIC HEATING REGULATION
The boiler will automatically adjust its output temperature
to suit site conditions. However, your installer may have
adjusted this setting during commissioning.
Please refer to the installation instructions for full details.
ANTI-SEIZE FUNCTION
Should the appliance remain inactive for a period of 24
hours, the pump will be activated for a few seconds to
prevent seizure.
APPLIANCE STATUS INDICATORS
The Vokera Option has 3 status indicators that show if the
appliance is working normally, if it needs ‘topping up’ or
re-pressurising, or if it has a fault (see below).
GUARANTEE REGISTRATION CARD
Please take the time to fill out your guarantee registration
card. The completed warranty card should be posted
within 30 days of installation.
APPLIANCE LOG BOOK
A logbook is supplied with the boiler. This important
document must be completed during the installation/
commissioning of your boiler. Failure to install and
commission the appliance in accordance with the manu-
facturers instructions may invalidate the warranty. This
does not affect your statutory rights.
Please keep your logbook handy, as you will be asked to
quote certain information from the logbook should you
need to contact Vokera Ltd. In the unlikely event of a
problem occurring with your appliance.
Green LED
Yellow LED
Red LED
Reason
Action required
On/flashing
Off
Off
Appliance is ok
None
On
On
Off
Low pressure
Requires ‘topping-up’
See page 5
Off
On
On
Zero pressure
Requires ‘re-pressurising’
See page 4
Off
Off
On
Internal fault
Reset, see page 5
Off
Off
Flashing
Lockout fault
Reset, see page 5
Off
Off
Off
No power, blown fuse,
Ensure power supply to
Internal fault
Boiler is on, check fuse,
Contact engineer
HOW TO…
●
USE THE APPLIANCE FOR THE FIRST TIME
Before switching the appliance on please familiarise
yourself on how to isolate the appliance from the electric-
ity, gas, and water supplies. If in doubt contact your
installer.
Turn the mode selector switch to the OFF position, switch
on the electrical supply to the appliance. The green LED
should be illuminated, (if any other LED’s are illuminated
it indicates the system may require ‘topping up’ or a fault
exists, if so, refer to status indicators section before
continuing) you may now select either HOT WATER
ONLY or HEATING AND HOT WATER.
●
OBTAIN HOT WATER
By turning on a hot water outlet (tap) the boiler will fire to
deliver hot water.
The appliance will have been commissioned by your
installer to deliver hot water at both a reasonable tem-
perature and flow rate, should you wish to increase the
temperature of the hot water simply reduce the flow of
water as it comes out of the tap. Please consult your
installer for further advice if required.
●
OBTAIN CENTRAL HEATING
When the time clock is in an ‘on’ position, and the room
thermostat – if fitted – is calling for heat, the boiler will
fire to provide central heating.
●
RE-PRESSURING THE SYSTEM
The system will need re-pressurising if both the red and
yellow LED’s are illuminated. Locate the filling valve and
if necessary connect the loop (see fig. 3) slowly open the
valve until you hear the water entering the appliance. The
red LED will go out first, followed by the yellow LED. Once
the yellow LED has gone out, close the filling valve and
disconnect the loop. The appliance must not be operated
until the system has been re-pressurised. If in doubt
contact your installer.
STATUS INDICATORS
