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User Instructions
User Instructions
Heating switch: When set to TIMED,
the boiler will only provide central
heating when either the Programmer or
Timer is in a ‘heating ‘on’ period and the
room thermostat is ‘calling’ for heat.
When set to OFF, the boiler will not
provide central heating at all. When set
to CONSTANT, the boiler provides
central heating continuously when the
room thermostat is calling, overriding all
of the Timer or Programmer heating
settings.
For Summer time operation, when
central heating is not required, set the
Heating switch to OFF.
Hot Water switch: Allows the hot water
operation of the boiler to be manually
switched off if hot water is not required.
With the switch set to OFF, the burner
will not fire to maintain the water
temperature in the store and the hot
water (store) pump will not operate.
If a programmer or ‘wireless’ two
channel programmable room thermostat
is connected to the boiler (as options D,
E and F defined under About your
boiler), when the switch is set to TIMED,
the boiler will provide hot water only
during the ‘on’ periods set on the
programmer. When the switch is set to
CONSTANT the boiler provides hot
water continuously on demand,
overriding any programmer settings.
Also refer to the section ‘Night time’
hot water function for further
information.
Boiler indicator lights: These 8 red
lights indicate the operating situation of
the boiler.
Boiler (heating) thermostat: Controls
the temperature of the water leaving the
boiler to the central heating system.
Operation of this control does not affect
the temperature of the hot water flowing
to the taps.
The temperature of the water leaving
the boiler to the radiators can be
increased by turning the boiler (heating)
thermostat clockwise. Figure 1 shows
the components in the Vortex Pro
Combi e internal boilers and the position
of the control panel. Figure 2 shows the
details of the control panel.
Introduction
This User Guide is intended to assist
the user in the operation of the Grant
VORTEX Pro Combi boilers.
The engineers manual for the
installation and maintenance of this
boiler is attached to the reverse of
these instructions.
The following special text formats are
used in this manual for the purposes
listed below:
Warning of possible human injury as
a consequence of not following the
instructions in the warning.
Note text. Used for emphasis or
information not directly concerned
with the surrounding text but of
importance to the reader.
About your Boiler
Your Grant Vortex Pro Combi boiler is
fully automatic and when the boiler
On/off switch is set to ON, will provide
domestic hot water at mains pressure
on demand and central heating when
the hot water and heating system
controls call for it.
Your boiler may be fitted with one of the
following control options, located either
on the boiler control panel or in a
convenient position remote from the
boiler:
• Option A Programmable room
thermostat only.
• Option B Remote timer and room
thermostat.
• Option C Boiler-mounted ‘plug-in’
single channel 24-hour mechanical
timer and remote room thermostat.
• Option D Boiler-mounted ‘plug-in’
single channel 7-day electronic timer
and remote room thermostat.
• Option E Remote two-channel
programmer and room thermostat.
• Option F Boiler mounted ‘plug-in’
two-channel electronic
programmable timer and remote
room thermostat.
• Option G Remote ‘wireless’ two
channel programmable room
thermostat (with boiler mounted
‘plug-in’ receiver unit).
Whatever type of control is connected
to your boiler, it will allow you to set the
operating times of your central heating.
In the case of options A, B, C and D -
domestic hot water is available
continuously, providing the boiler is
switched on, irrespective of the heating
control settings.
In the case of options E, F and G -, you
can set the operating times for both
heating and hot water using the heating
and hot water settings respectively on
the programmer, or wireless two-
channel programmable room
thermostat.
!
WARNING
!
NOTE
The boiler will produce a limited
amount of hot water during the ‘off’
Hot Water periods set on the
programmer. Refer to ‘Night time’ hot
water operation - Section ‘Night time’
hot water function.
Boiler Controls
To access the controls, pull off the front
door from the boiler.
Boiler On/Off switch: This switches the
boiler on and off. The boiler On/Off
switch incorporates a ‘mains on’ neon;
see Figure 2, which lights when the
boiler is switched on. Please note that
the ‘mains on’ neon does not
necessarily indicate that the burner is
firing.
!
NOTE
When the On/Off switch is set to ON
the POWER indicator on the control
panel will light.
The boiler will not supply central
heating or domestic hot water if this
switch is set to OFF, and also the
built in frost thermostat will not
operate.
!
NOTE
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