Specifications

Flepeat
the tollowing
checks:
A.
Earth Continuity.
C. Polarily.
D. Besistance to Earth
according
to Instructions
for British Gas
Multimeter.
ls
voltage
2ZIO VAC
trom teminal
Does
Main
Burner
light?
Are external
Thermostats
tested?
Fleplacefaulty
Thermostat.
Ret. to
note 5.
Check external
Thermostals accorclino
to lnstructions tor
'
British Gas
Multimeter.
Go to sheet 4
€*t
Overheat
:,t-Otf
Device.
eef.
lo note 2.
-:Eck
contacts
d
Overheat
:loff
Device.
a€i.
to
note
3.
Check
that
Multiplugs
@
arid
:
ile
clean, tight
ild
mrrectly
:r:siti.cned.
Ref.
note
4.
Note 2: For
re.s€tting,
press
the black
rubber
butlon on right
hand side of control
box behind
the
terminal
box.
Note 3:
For
this
purpose,
open
the control
box as describ€d
in Note
1. The overheat
cut-off
device
isiitt(i
on
right hand
side ofthe control
box- Checkitthe
flat
plugs
ofthe overheat
cut-otl device
are tight.
Nole 4:
For
this
purpose,
open
the control box as
described
in Note 1 Pull off
the multicontact
plugs
A and B and check
that not contact
lugs are bent.
It necessary,
readiust contact
iugS
and
reset multicontact
plugs
again.
Note 5:
To
check, disconnecf
contrclsystemlrom
terminals 3 and
4, and replace
with wire
loopto
run boiler
in heating
mode.
51