Condensate Drain Connection - Carrier N95ESN Installation, Start-Up, Operating And Service And Maintenance Instructions

N95ESN: Installation, Start-up, Operating and Service and Maintenance Instructions
To Relocate the Condensate Trap:
• Orient the furnace in the downflow position.
• Fig. 9 shows the condensate trap and tubing before and after
relocation. Refer to Fig. 9 to begin the trap conversion.
• Refer to Condensate Drain section for information how to install the
condensate drain.
Condensate Trap - Horizontal Orientation.
When the furnace is installed in the horizontal right position, the
condensate trap will be initially located at the bottom of the collector
box, as received from the factory. See the top image in
furnace is installed in the horizontal left position, the condensate trap
will be initially located at the top of the collector box, as received from
the factory. See the top image in
repositioned on the collector box for proper condensate drainage. See the
bottom images in Fig. 10 and Fig.
A field-supplied, accessory Horizontal Installation Kit (trap grommet) is
required for all direct-vent horizontal installations (only). The kit
contains a rubber casing grommet designed to seal between the furnace
casing and the condensate trap. See
To Relocate the Condensate Trap:
• Remove the knockout in the casing for the condensate trap.
• Install the grommet in the casing when required for direct-vent
horizontal applications.
• Orient the furnace in the desired position.
• Allow for 2 in. (51 mm) of clearance underneath the furnace for the
condensate trap and drain line.
• Fig. 10 shows the condensate trap and tubing before and after
relocation in the horizontal right position.
• Fig. 11 shows the condensate trap and tubing before and after
relocation in the horizontal left position.
• Refer to the appropriate figure to begin the trap conversion.
• Refer to Condensate Drain section for information how to install the
condensate drain.
Evaporator Coil
+ + +
Condensing
Furnace
+
+
Blower
-
-
Evaporator Coil
+
+
3/4" PVC
+
+
+ + +
3/4
+
Condensing
3/4
Furnace
+
+
+
3/4
+
1/2" CPVC or larger*
+
< +
< +
< +
3/4
-
1/2
+
Blower
-
1/2
-
- -
+
-
+ = Positive pressure
< + = Pressure lower than areas with +
− = Negative pressure
Fig. 13 – Example of Field Drain Attachment (Not Allowed)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 10. When the
Fig. 11. In both cases the trap must be
11.
Fig. 18.
+ = Positive pressure
< + = Pressure lower than areas with +
+
+
+
− = Negative pressure
+ +
Blower creates positive pressure.
Positive pressure extends into coil
+ condensate drain (no trap).
< +
< + < +
Furnace condensate does not flow
consistently when drain is at positive
-
+ pressure.
- +
- -
+
+
Evaporator Coil
+
+
Open
standpipe
3/4" PVC
+
+
+ 3/4 +
Condensing
3/4" PVC
Furnace
+
+
+
+
< +
< +
< +
+
-
+
+
Blower
3/4
-
-
+
- -
+
-
3/4
+ = Positive pressure
< + = Pressure lower than areas with +
− = Negative pressure
The field-supplied, accessory horizontal drain trap grommet is ONLY
REQUIRED FOR DIRECT VENT APPLICATIONS. It it NOT
required for applications using single-pipe or ventilated combustion air
venting.
The condensate trap extends below the side of the casing in the
horizontal position. A minimum of 2-in. (51 mm) of clearance is
required between the casing side and the furnace platform for the trap to
extend out of the casing in the horizontal position. Allow at least 1/4-in.
per foot (20 mm per meter) of slope down.
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may result in property
damage.
Special precautions MUST be made if installing furnace in an area
which may drop below freezing. This can cause improper operation or
damage to equipment. If furnace environment has the potential of
freezing, the drain trap and drain line must be protected. The use of
accessory drain trap heaters, electric heat tape and/or RV antifreeze is
required for these installations.

CONDENSATE DRAIN CONNECTION

PROPERTY DAMAGE HAZARD
Failure to follow this caution ma result in burst water pipes and/or
property damage.
If a condensate pump is installed, a plugged condensate drain or a failed
pump may cause the furnace to shut down. Do not leave the home
unattended during freezing weather without turning off water supply
and draining water pipes or otherwise protecting against the risk of
frozen pipes
DO NOT trap the drain line in any other location than at the condensate
drain trap supplied with the furnace. If possible, DO NOT route the drain
line where it may freeze. The drain line must terminate at an inside drain
to prevent freezing of the condensate and possible property damage.
Special precautions MUST be made if installing furnace in an area
which may drop below 32° F (0° C). This can cause improper operation
or damage to the equipment. If the furnace environment has the potential
+
3/4" PVC
3/4
of freezing, the drain trap and drain line must be protected. In areas
+
where the temperature may be below 32° F (0° C), a Condensate Freeze
+
3/4
1/2" CPVC or larger*
Protection kit is required. The kit includes a condensate trap with heat
+
3/4
pad and replaces the factory-installed condensate trap. Refer to the
+
Accessory section of the Specification for current kit number. A
self-regulating, shielded and waterproof heat tape rated at 3 to 6 watt per
foot (10 to 20 watt per meter) at 115 volt, 40°F (4°C) may be used to
+ +
3/4
provide freeze protection of the remaining condensate drain line. Wrap
the drain trap and drain line with the heat tape and secure with
appropriate plastic ties. Follow the heat tape manufacturer's
A14532
recommendations. Prime the trap before furnace operation.
The condensate drain line must be supported and/or secured per local
codes. Supports and clamps should be spaced to prevent the drain line
12
NOTICE
!
NOTICE
!
CAUTION
!
CAUTION
!