A
RUVG
MANUAL
27 of 35
June 14
OPERATIONAL
CHECK
FOR
GAS
FIRED
RUVG
UNITS
The
unit
has
been
tested
at
the
factory,
gas
consumption
clocked,
and
all
safety
controls
checked
to
ensure
they
operate.
Field
testing
will
confirm
all
components
are
operating
properly
after
shipping
and
installation.
1.
Read
all
of
this
section
before
proceeding.
It
may
be
necessary
to
refer
to
another
control
manual
to
perform
some
of
the
operation
test
procedure
and
then
return
to
this
document
to
complete
the
safety
checks.
2.
Purge
all
the
air
from
the
gas
lines.
Refer
to
the
Canadian
Natural
Gas
and
Propane
Installation
Code,
C.S.A.
Standard
B149.1
or
the
National
Fuel
Gas
Code
ANSI/Z223.1/NFPA
54
for
proper
method.
Check
all
connections
for
leaks
and
correct.
Ensure
that
the
inlet
pressure
agrees
with
the
approval
label.
3.
Adjust
airflow
through
the
unit
to
obtain
the
rating
plate
specified
airflow.
Operation
with
airflow
less
than
specified
can
damage
the
heat
exchanger.
4.
Do
not
re
‐
start
burner
when
the
heat
exchanger
is:
a.
very
hot
b.
full
of
gas
5.
Do
not
start
burner
unless
the
supply
fan
blower
access
door
is
secured
in
place
and
the
burner
access
cover
is
firmly
attached.
6.
Open
door
and
remove
access
panel
to
the
gas
heater
enclosure.
Note:
The
access
panel
must
be
in
place
except
when
servicing.
7.
Turn
the
gas
on
for
the
unit.
Check
for
leaking
gas
piping
to
the
unit
and
check
the
manifold
piping
up
to
the
safety
shutoff
valves.
8.
Check
the
main
and
safety
shut
off
valves
and
pilot
valve
for
leakage
following
the
valve
manufacture’s
recommendations.
9.
Move
gas
control
knob
to
“Off”
position.
10.
Install
a
tapped
fitting
for
attachment
to
a
manometer,
or
other
gauge
suitable
for
14.0”
w.c.,
in
the
inlet
pressure
tap,
and
for
10.0”
w.c.,
in
the
manifold
pressure
tap.
11.
Wait
5
minutes
for
any
gas
to
clear
out.
If
you
smell
gas,
see
Step
4
above
and
correct
leak.
If
you
don’t
smell
gas
or
have
corrected
any
leaks,
go
to
the
next
step.
12.
Turn
gas
control
knob
to
“On”
position
