LOSES FLAME DURING
CYCLE
_
CONTROL LOCKS
OUT ON SAFEW
1
Reset contror
ti#fi,":',lT*h"
H.:*"J",-"
-;",::;T::.ffi
"ircuit
is satisried
2. Disconnect
flamerod
lead from
primary
control. Connect
(+)
positive
lead
(DC)
Microampere Meter to the
primary
controlterminal.
Connect the
(-)
negative microampere
meter
lead to the flamerod lead
terminal.
See
Fig.
14:
Flame Current Measurement.
Probable
cause
of
erratic
lockout:
1. Flame
proving
circuit
grounded
by
moisture.
2. Damaged insulation
on
flamerod lead.
3.
Flamerod improperly
positioned
in
flame
(see
Fig. 13).
4.
Poor
ground path
to
primary
control.
5. Defective
primary
control.
6.
Read manual
section
"Flame
Sensing".
7. Applicable
only to
Honeywell
S89
series
primary
ignition controls:
Connect
L1 to the
black lead and 12 to the white lead
exiting
the
S89 otherwise the
S89
will
not
detect the
flame and will lock out.
3.
Reset
control, after
prepurge
cycle, flame is established.
A stable
microampere
current
of
.8
or
more
is
required
for
dependable operation.
Probable causes:
1. Extremely
poor
combustion
level.
2. Flamerod improperly
positioned
in
flame.
3.
Defective
primary
control.
4.
Microampere
reading is less than .8
or unstable.
BURNER CYCLES ERRATICALLY
for
proper
thermostat
installation
and
location.
2.
Check
thermostat
heat anticipator
for
correct setting.
Set
anticipator to
correct
value if
adjustable
type.
lf
proper
setting
cannot
be
made, replace with
compatible thermostat.
3. Check
low voltage
circuit
for bad
wiring, electrical
connections and/or switches.
4.
Check
line voltage
circuit
for bad wiring,
electrical
connection and/or switches.
NOTE: When
the
thermostat wires terminate
on
the
HSG
primary
control
box'T"
terminals,
the
heat
anticipa-
tor
setting
value for
the
HSG burner is
determined by
adding the
primary
control
current
to the
gas
valve cur-
rent.
The
result
is
the anticipator setting.
(Exampfe:
.2 +
.6
=.8
amps.)
lf the thermostat wires ARE NOT
terminated on
the
bumer control
box
"7" terminals,
and these
terminals
are
JUMPERED,
you
must then determine what
the
correct
anticipator setting
is
by
inspecting
the
controlling device
at the
point
where
the thermostat wires terminate.
Typically,
this
information
can
be found on
the
body or
cover of the controlling device.
When determining the cunent draw of the dual head
gas
valve,
be sure to consider the separate ampere
values
for
each valve.
These
usually are
stenciled
on the
valve
body,
and must be added together to
obtain
the correct
sum.
(Example:
.4
+
.2
=
.6
amps).
When
the current
draw cannot be
determined
accurately
by the above method, measure the
current with an
ampere
meter
using the
1 AMP scale.
Connect
the
meter leads in
series
with one of the
thermostat
leads
for
the
accurate reading.
PAGE 14
lOSES
FLAME DURING CYCLE - CONTROL
lOCKS
OUT
ON
SAFETY
1.
Reset Control
• Completes
30
second prepurge cycle, and 8 second safe start
check.
• Flame is established.
• Sometimes the control locks out before the thermostat or controlling circuit is satisfied.
~
2.
Disconnect flamerod lead from
primary
control. Connect
Probable cause of erratic lockout:
(+) positive lead (DC) Microampere
Meter
to the primary
control terminal. Connect the (-) negative microampere
1.
Flame proving circuit grounded by moisture.
meter lead to the flamerod lead terminal. See Fig. 14:
2.
Damaged insulation
on
flamerod lead.
Flame Current Measurement.
3.
Flamerod improperly positioned in flame (see
Fig. 13).
~
4. Poor ground path to primary control.
~
5.
Defective primary control.
3.
Reset control, after prepurge cycle, flame is established.
6.
Read manual section "Flame Sensing".
A stable microampere current
of
.8
or
more
is
required
7.
Applicable only to Honeywell S89 series
for dependable operation.
primary ignition controls: Connect L1 to the
black lead and L2 to the white lead exiting the
NO
S89 otherwise the
S89
will not detect the
flame and will lock out.
""to~
h.
4. Microampere reading is less than .8
or
unstable.
)
Probable causes:
,.
1.
Extremely poor combustion level.
2.
Flamerod improperly positioned
in
flame.
3.
Defective primary control.
BURNER CYCLES ERRATICALLY
I 1.
Check for proper thermostat installation and location.
~
h.
2.
Check thermostat heat anticipator
for
correct setting.
.!o)
Set anticipator to
correct
value if adjustable type.
~
,.
If
proper setting
cannot
be made, replace with
compatible thermostat.
3.
Check low voltage circuit for
bad
wiring, electrical
connections
and/or
switches.
NOTE:
When
the
thennostat
wires
tenninate
on
the
HSG
primary
control
box
"1""
tenninals,
the
heat anticipa-
~
tor
setting
value
for
the
HSG
burner
is
detennined
by
adding
the
primary
control current
to
the
gas
valve
cur-
4.
Check line voltage circuit
for
bad wiring, electrical
rent.
The
result
is
the
anticipator
setting.
connection and/or switches.
(Example:
.2
+
.6
=
.8
amps.)
If
the
thennostat wires
ARE
NOT
tenninated
on
the
bumer
control
box
"T" tenninals,
and
these
tenninals
are
JUMPERED,
you
must then detennine
what
the correct
anticipator
setting
is
by inspecting
the
controlling device
at
the
point
where
the
thennostat
wires
tenninate.
Typically,
this
infonnation can
be
found
on
the
body
or
cover
of
the
controlling device.
When
detennining
the
current
draw
of
the
dual
head
gas
valve,
be
sure
to
consider the
separate
ampere
values
for
each
valve.
These
usually
are
stenciled
on
the
valve
body,
and
must
be
added together
to
obtain
the
correct
sum.
(Example:
.4 +
.2
=
.6
amps).
When
the
current
draw cannot
be
detennined accurately
by
the
above
method,
measure
the
current
with
an
ampere
meter
using
the
1
AMP
scale.
Connect
the
meter
leads
in
series
with
one
of
the
thennostat
leads
for
the
accurate
reading.
PAGE 14
To Next Page
Loading...
Need help?
General
