Carrier 59SP6A Installation, Start-Up, Operating, Service And Maintenance Instructions page 13

59SP6A: Installation, Start-up, Operating, Service and Maintenance Instructions
trap with heat pad and replaces the factory-installed condensate trap.
Refer to the Accessory section of the Product Data for current kit
number. If the Condensate Freeze Protection kit is not used, the
factory-installed condensate trap must be adequately covered using 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). Failure to
effectively secure the heat tape to the trap and sufficiently cover the trap
with heat tape may result in freezing and cracking of the trap, causing a
leak that results in property damage. In applications with potential for
freezing, the above specified heat tape must also adequately cover/wrap
the remaining condensate drain line to provide freeze protection. Wrap
the drain trap and drain line with the heat tape and secure with
appropriate plastic ties. Follow the heat tape manufacturer's
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
from sagging or being dislocated from the furnace or termination point.
In the absence of local codes, consult the current edition of the National
Standard Plumbing Code, in the U.S. or the current edition of the
National Plumbing Code of Canada.
Upflow/Downflow Orientation
In the Upflow or Downflow orientation, the condensate trap is inside the
furnace casing. The condensate drain must be routed from the trap
through the furnace casing. The condensate drain can be routed through
the left or right side of the casing. (The left or right side is as you are
viewing/facing the furnace from the front.)
An indoor coil condensate drain or humidifier drain can be connected to
the external furnace condensate drain provided:
• The drains are not hard piped together, and
• There is an air gap at the point where the two drain lines meet or
• All condensate piping is at least 3/4-in. PVC and there is a relief tee at
the top of condensate drain piping as shown in
NOTE: On narrower casings, it may be easier to remove the condensate
trap, connect the drain line components and re-install the condensate
trap. Read the steps thoroughly to familiarize yourself with the required
steps.
For Right Side Condensate Drain:
1. Remove the 7/8-in. knock-out from the right side of the casing. See
Fig. 15 for suggested knockout removal technique.
2. Remove the pre-formed rubber drain elbow and two spring clamps
from the loose parts bag.
3. Slide a spring clamp 1-inch (25 mm) down the plain end (the end
without the formed grommet) of the drain elbow.
4. From inside the casing, insert the formed grommet end of the elbow
through the 7/8-in. knockout in the casing.
5. Pull the grommet through the casing from the outside until it is
seated in the knockout
6. Attach the plain end of the drain elbow to the outlet stub on the
drain trap. Secure the drain elbow to the trap with the spring clamp.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
The remaining drain line can be constructed from field supplied 1/2-in.
CPVC or 3/4-in. PVC pipe, in compliance with local building codes. A
factory-supplied 1/2-in. CPVC to 3/4-in. PVC adapter is supplied in the
loose parts bag for use as required.
7. Install the adapter or connect the 1/2-in. CPVC pipe by sliding a
8. Open the spring clamp and insert the long end of the adapter or the
9. Connect additional condensate piping to a code-approved drain, or
Fig. 12.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and wear
appropriate protective clothing, safety glasses and gloves when
handling parts, and servicing furnaces.
Allow at least 1/4-in. per foot (20 mm per meter) of slope down and
away from the furnace in horizontal sections of drain line.
TIP FROM CONTRACTORS: Contractors have found that temporarily
removing the inducer assembly in upflow applications while performing
the steps, below, makes upflow left-side drain connections easier.
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INSTALL CLAMPS ON DRAIN TUBE
ATTACH DRAIN TUBE TO CONDENSATE
DRAIN TRAP
PULL DRAIN STUB
THROUGH CASING
OPEN SPRING CLAMP
INSERT FACTORY SUPPLIED 1/2 IN. CPVC
TO 3/4 IN. PVC ADAPTER OR 1/2 IN. CPVC PIPE
*CLAMP MAY BE LOCATED ON OUTSIDE OF DRAIN
TUBE
Fig. 14 – Formed Rubber Drain Grommet
spring clamp over the open end of the grommet on the outside the
furnace casing.
1/2-in. CPVC pipe into the outlet stub on the drain tube.
to a condensate pump approved for use with acidic furnace
condensate and compatible with mineral and vegetable oils, such as
canola oil.
CAUTION
!
Fig. 15 – Knockout Removal
A11342A
L12F019B