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Carrier 58MSA040-08 Installation, Start-Up, And Operating Instructions Manual page 37

4-way multipoise fixed-capacity condensing gas furnace

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CONDENSATE
WIRE TIE
HEAT
(3 WRAPS
MINIMUM)
A93036
Fig. 43--Condensate
Trap Heat Tape
START-UP,
ADJUSTMENTS
AND SAFETY
CHECK
Step
l--General
1. Furnace
mast have a 115-v power
supply properly
connected
and grounded.
Proper polarity
must be maintained
fbr con'ect
operation.
NOTE:
Proper
polarity
must be maintained
for l15-v
wiring.
If
polarity
is incorrect,
ft/rnace
control
fault indicator
light will flash
rapidly
and furnace
will not operate.
2. Them_ostat
wire
connections
at terminals
R, W, G, and Y
must be made at 24-v terminal
block on thmace
control center.
3. Natural
gas service
pressure
must not exceed
0.5 psig (14oin.
we), but must
be no tess than 0.16 psig (4.5-in.
wc).
4. Blower
access
panel
must
be
in place
to complete
l15-v
electrical
circuit
to furnace.
FIRE
HAZARD
Failure
to follow
this caution
may result
in intermittent
unit
operation.
These thrnaces
are equipped
with a manual
reset limit switch
in burner box. This switch will open and shut offpower
to gas
control
vah'e
if an overheat
condition
(flame
rollout)
occurs
in burner
enclosure.
Correct
inadequate
combustion-air
sup°
ply or improper
venting
condition
and reset switch
DO NOT
jumper
this switch
Befbre
operating
f_/mace,
check flame rollout manual
reset switch
for continuity.
If necessa_,
press button
to reset switch
Step
2--Prime
Condensate
Trap
with
Water
UNIT
MAY
NOT
OPERATE
Failure
to follow
this caution
may result
in intermittent
unit
operation.
Condensate
trap must be PRIMED
or proper draining
may not
occur
The condensate
trap has 2 internal
charnbers
which
can
ONLY be primed
by pouring
water into the inducer
drain side
of condensate
trap.
1, Remove upper inducer housing drain connection cap (See
Fig. 44)
2, (onnect
field-supplied
1i2oin ID robe to upper inducer
housing &ain connection,
37
...... 7
A99118
Fig. 44_[nducer
Housing
Drain Tube Cap
A99119
Fig. 45--FHffng
Condensate
Trap
3
Insert field-supplied
fhnnel
into tube
4. Pour
1 quart
of water
into
funnel/robe.
Water
should
run
through
inducer
housing,
overfill
condensate
tIap,
and flow
into open field drain. (See Fig. 45.)
5. Remove
funnel
and
robe fiom
inducer
housing
and replace
drain connection
cap and clamp.

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