4
User Instructions
Introduction
This User Guide is intended to assist
the User in the operation of the Grant
VORTEX Pro 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
The boiler is fully automatic once
switched on, providing central heating
(and also heating your domestic hot
water if you have a hot water cylinder
fitted). Kitchen/Utility boilers have a
'mains on' neon, see Figure 1, which
lights when the boiler is switched on, but
does not necessarily indicate the burner
is firing.
If your
boiler has
a programmer
fitted, it
will provide
hot water
and central
heating
during the
periods set
on the
programmer.
Bo
ile
r
Co
ntr
ols
(
Kit
ch
en
/U
til
ity
mod
els
)
To gain access to the controls, pull
the front panel forward at the top to
disengage the fixing clips then lift it up
and off the boiler as shown in Figure 1.
Lighting your Boiler
The lighting procedure is:
1.
Ens
ure
th
at t
her
e is
su
ffic
ien
t fu
el,
of t
he
cor
rec
t ty
pe,
in
th
e s
up
ply
ta
nk
and
al
l
fue
l s
up
ply
va
lve
s a
re
op
en.
Th
e w
ate
r
sup
ply
is
on.
Th
e e
lec
tric
ity
su
ppl
y to
th
e
boi
ler
is
of
f. T
he
boi
ler
O
n/O
ff s
witc
h is
set
to
O
FF
(K
itc
hen
/U
tili
ty
mod
els
on
ly)
.
The
ro
om
th
erm
ost
at (
if fi
tte
d) i
s a
t th
e
des
ire
d s
ett
ing
. T
he
boi
ler
th
erm
ost
at
is
set
to
th
e r
eq
uire
d s
ett
ing
.
2.
Switch on the electricity supply to
the boiler.
Boiler House models will start as
soon as the electricity supply to the
boiler is switched on.
3.
Set the On/Off switch to ON and, if
fitted, the programmer (CH or HW) to
ON (Kitchen/Utility models only).
4.
The boiler
will now
light automatically.
5.
If you have a programmer fitted
in the control panel, refer to
the instructions supplied with
the programmer and set the
programmer. Set the HW and CH
functions to TIMED. The boiler will
WARNING
!
NOTE
!
Figure 1:
Boiler controls (Kitchen/Utility model shown)
Figure 2:
Boiler House dual thermostat (on top of boiler)
OV
ER
HE
AT
RE
SE
T
HE
ATI
NG
TE
MP
ER
ATU
RE
ON
BO
ILE
R
OFF
Lock-out button
Front panel removed (pull forward at top, then lift off)
Front panel fixing clips
Front panel bottom locating tags
G
RA
NT
Programmer
(if fitted)
Pressure gauge
(System models only)
Boiler
thermostat
Overheat
thermostat
reset button
(under cover)
On/Off
switch
SYSTEM PRESSURE
HEATING
TEMPERATURE
OVERHEAT
RESET
BOILER
OFF
ON
Mains On neon
Boiler thermostat
Overheat thermostat
reset button (under plastic cap)
User Instructions
