Operating instructions
Operatlon
1.
Fill
tank
with
desired
malerial. Turn
on
power
al main
switch.
2.
Sel
main
índicating lemperature
control
lo
proper
tank
holding temp€rature.
3. Set Hi-Limil
control 20lo 30 degrees
above
main
conlrol
set
poinl.
Hi-Limit
will act only in
event of main
control lailure. Heatsr
will
continue
to cycle
at
Hi-Limit set
point
and red light on
panel
door will
indicate
"Hi-Limit"
condilion.
Press light
to resel
when condition is remedied.
4.
lf
unit
is
equipped
with
a time clod<, see instruction
sheet lor
proper
clock setling.
5. Heater operation is now
complelely automatic.
Check
electrical con
nectíons
periodically
lor
tightness.
Keep
panel
door closed tightly at all times.
6.
Clean tank
at
iegular intervals. Heater
tubes
are
114'
thick steel
pipe.
Use care wilh
jack
hammers
and chisels
so as
not lo
rupture
tube wall.
.r...
NOtg.
r.lr
Terminalblock
if
provided
is to ínter-lock
heat
"off'while
olher
loads
are running.
(Remove
jumper
and
conneci to terminals
11
&
#2.1
CONTROL
PANEL
ALL WIRING
SHOULD CONFORTú
TO REOUIREMENTS OF APPLþ
CABLE NATIONAL AND LOCAL ELECTRICAL CODES AND OR
STANDARDS,
Rating
and voltage of the unh will
be
found on
the
name
plate
located
on
the inside of door in the control
panel,
and conduit enclosed insulated
conductors
of
the
proper
gauge
should
be brought
from
the
main
circuit
breaker or fused
disconnecl
switch.
The
controlling
thermostat
can be
pre-set
lo
any desired temperature
within the thermostat
dial
range.
ll
the control
panel
has
been
equipped
with a time
clock
please
refer to the
separale
inslructions enclosed
lor
proper
clock
setting.
Your
unit has also been equipped
with an over-temperalure thermoslat
that
should be set
20
-
30 degrees above
main lemperalure
control. lts
primary
function
is
to
protect
against over
heating in lhe event
ol
main
temp€rature
conlrol
malfunction. The
unit will cycle at
lhis
new tempera-
ture and a red Hi-Limit warning light, on lhe
outside
of
the
control
panel
will
light. This light will remain on
until
the limit
circuit
is reset to
alert
person-
nel that there is a malluncîion.
The cause
of
the malfunction
should be
investigated
at once. Possible
teasons
are:
1.
Capillary rupture on the main lemperature conlroller
(indicated
by
temperature
indicating
pointer
at far
left hand
position).
2. "Over Ranging" of the
main
lemperature
controller
(indicated
by
incorrect
lemperature
reading on the
scale).
3.
Thermostat tsmperature setting is too high
4. Main lemperature controller out of calibration.
5. Over-Temperature lhermostat out
of calibralion.
6.
Heater magnetic conlactor
locked ín closed
position
because ol
"welded"
conlacts or
mechanical
bind.
I01-p5
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101-p4
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