National Comfort Products CPG41838-U, Instruction Manual

Page: 30 / 80

30
Gas Furnace
DSI Control Identification Used For All Original Series Equipment
3 AMP
LOW
VOLTAGE
FUSE
MOLEX
TO HEAT
COMPONENTS
7
180
ON
ON
NEUTRALS
SPARK
TRANSFORMER
CONTROL
PLUG
FAN
OFF
DELAY
STATUS
LIGHTS
THERMOSTAT
PLUG
FUSE
Y G W R C
TEST
P3
FLAME OK
AN2
OFF ON
SW1
AN1
1 2
F1 3 AMP
COM
SEC
IND
L1 L1
HEAT
HEAT LOW
COOL
HEAT HIGH
EAC/BLO
MODEL 1097-211
24VAC, 60Hz., .5A MAX.
ANSI Z21.20 AUTOMATIC
1097-83-211B HSCI
TIME
90
120 160 180
SWITCH 1
OFF OFF
ON ON
SWITCH 2
ON OFF OFF ON
Combustion
Air Proving Switch
The
combustion
air
proving
switch
is
a
pressure
sensitive
switch
that
monitors
air
pressure
to
ensure
that
proper
combustion
air
flow
is
available.
The
switch
is
a
single
pole/normally
open
device that
closes
when a
decreasing pressure is
sensed in the
venter
housing.
On
start-up
when
the
heater
is
cold,
the
sensing
pressure
is
at
the
most
negative
level,
and
as
the
heater
warms
up,
the
sensing
pressure
becomes
less
negative.
After
the
system
has
reached
equilibrium
(about
10
minutes),
the
sensing
pressure
levels
off.
All
units
are
equipped
with
a
temperature
activated
manually
reset
switch.
The
flame
rollout
switch
is
located
centrally
on
the
top
of
the
burner
assembly.
It
is
factory
set
and
is
non-ad-
justable.
If
the
setpoint
is
reached,
the
flame
rollout
acts
to
interrupt the electric supply to the gas valve. If
the flame rollout
switch
activates,
identify
and
correct
the
cause
before
resetting
the
switch.
Refer
to
the
Maintenance
Section
for
information
on
probable
causes
and
instructions
on
resetting
the
flame
rollout
switch.
The
hea
ter
ha
sa
one-pie
ce
burner
designed
to
provid
e
controlled
flame
stability
without
lifting
or
flashback
with
either
natural
or
propane
gas.
The
burner
can
be
removed
as
a
unit
for
inspection
or
service.
The
main
operating
gas
valve
is
powered
by
the
24-volt
control
circuit
through
the
thermostat
and
safety
controls.
The
main
control
valve
is
of
the
diaphragm
type
providing
regulated
gas
flow
preset
at
the
factory.
W
ARNING:
THE
OPERA
TING
VAL
VE
IS
THE
PRIME
SAFETY
SHUT
OFF
.
ALL
GAS
SUPPL
Y
LINES
MUST
BE
FREE
OF
DIRT
OR
SCALE
BEFORE
CONNECTING
THE
UNIT
TO
ENSURE
POSITIVE
CLOSURE.
SEE
HAZARD
INTENSITY
LEVELS,
PAGE
2.
Burner
Gas V
alve
EXTENDED
FAN TIME
DIP SWITCH
SETTING
INPUT FAN OUTPUT-
COOLING
FAN OUTPUT-
HEATING
INDUCER FAN
OUTPUT
SPARK
IGNITOR
OUTPUT
LOW
VOLTAGE
COMMON
24V
LOW
VOLTAGE
SECONDARY
24V
GREEN – CONTROL
INDICATOR LIGHT
(FAULT CODES)
YELLOW – FLAME
INDICATOR LIGHT
(FLAME ONLY)
MOLEX CONNECTION
TO T-STAT WIRE
(Y-G-W-R-C)