A
RUVG
MANUAL
32 of 35
June 14
GAS
MANIFOLD
It
is
recommended
that
at
least
once
each
year
the
safety
devices
should
be
checked.
Follow
operational
check
at
detailed
in
this
manual.
The
Safety
Shut
Off
Valves
must
be
tested
on
at
least
an
annual
basis
or
as
per
the
manufacturer’s
recommendations,
whichever
is
less.
Regulators
with
vent
terminals
must
have
yearly
cleaning
of
the
screen.
GAS
HEATER
Warning:
This
unit
is
connected
to
high
voltages.
Electrical
shock
or
death
could
occur
if
instructions
are
not
followed.
This
equipment
contains
moving
parts
that
can
start
unexpectedly.
Injury
or
death
could
occur
if
instructions
are
not
followed.
All
work
should
be
performed
by
a
qualified
technician.
Always
disconnect
and
lock
out
power
before
servicing.
DO
NOT
bypass
any
interlock
or
safety
switches
under
any
circumstances.
1.
The
furnace
should
be
inspected
annually
by
a
qualified
service
personnel.
The
condition
of
the
burners,
heat
exchanger,
draft
inducer,
vent
system,
operating
controls
and
wiring
should
be
determined.
Check
for
obvious
signs
of
deterioration,
accumulation
of
dirt
and
debris
and
any
heat
or
water
related
damage.
Any
damaged
or
deteriorated
parts
should
be
replaced
before
the
unit
is
put
back
into
service.
2.
Clean
burners,
heat
exchanger,
draft
inducer
and
vent
ducts
with
a
soft
brush
or
vacuum
affected
areas.
3.
Check
Heat
Exchanger
for
cracks.
If
any
are
present,
replace
heat
exchanger
before
putting
unit
back
into
service.
4.
Check
the
attachment
point
of
the
ducts
to
verify
that
they
are
air
tight.
5.
Check
the
automatic
gas
valve
to
insure
that
the
gas
valve
seat
is
not
leaking.
Operation
Check
1.
Turn
on
power
to
the
unit
and
set
thermostat
or
heat
controller
to
call
for
heat,
allowing
furnace
module
to
operate.
2.
Check
for
proper
start
‐
up
and
ignition
as
outlined
in
“Operational
Check”
on
page
27.
3.
Return
thermostat
or
heat
controller
to
normal
setting.
VENT
TERMINALS
The
vent
terminal
should
be
checked
and
cleaned
every
fall.
If
the
terminal
is
found
to
have
accumulations
of
leaves
or
other
debris,
clean
more
often
as
necessary.
