935CA: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
14
A200077
Fig. 19 – Example of Tube Connection
Upflow Specific Steps – Standard Installation
1. Install trap adapter to the collector box using provided machine
screw, see
Fig. 14
.
2. Screw the adapter plate to the trap adapter using provided machine
screw, see
Fig. 15
.
3. Screw the adapter plate to the side of casing using six (6) of the
provided sheet metal screws, see
Fig. 15
. Drilling pilot holes is
recommended to better align the plate with the knockout opening.
4. Screw the trap to the adapter plate using provided machine screw,
see
Fig. 15
.
5. Remove factory-installed collector box cap. Run tube from port on
upper left of the collector box to the relief port on the trap adapter,
see
Fig. 19
. If the tube is too long, cut any extra length from the
tube.
Upflow Specific Steps – Offset Installation
1. Trap Offset Adapter Accessory Kit (purchased separately) is
required. Instead of installing the trap to the adapter plate, screw the
trap offset adapter to the adapter plate, see
Fig. 16
.
2. Screw the trap to the trap offset adapter, see
Fig. 16
.
3. Screw the trap adapter plate to the casing using the supplied sheet
metal screw, see
Fig. 16
.
4. Remove factory-installed collector box cap. Run tube from port on
upper left of the collector box to the relief port on the trap adapter,
see Fig 19. If the tube is too long, cut any extra length from the
tube.
Horizontal Specific Steps
1. 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
Fig. 20
.
A200067
Fig. 20 – Horizontal Right - Trap Assembly Aid
2. Install the grommet in the casing when required for direct-vent
horizontal applications.
3. Allow for 6-3/8” (162 mm) of clearance underneath the furnace for
the condensate trap and drain line. It is recommended to leave an
additional 1” clearance under the trap for service, see Fig 21.
4. Remove appropriate collector box drain plug, see Fig 13.
5. Attach trap to collector box using provided machine screw, see Fig
20.
6. For horizontal right side down:
a. Remove factory-installed collector box cap.
b. Remove the factory-installed cap from the relief port on the trap
and run tube from port on the collector box corner opposite of the
trap to the relief port on the trap, see
Fig. 20
. If the tube is too
long, cut any extra length from the tube. In the installed position,
the transducer tubing should be in the lower pressure port and the
relief tubing should be in the higher port.
A200066
Fig. 21 – Trap Clearance in Horizontal Application
(Note: Drain line can be run horizontally or vertically)
NOTE:
Field Supplied Drain can be routed horizontally from the trap,
allow at least 1/4-in. per foot of slope down.
A200125
Fig. 22 – Horizontal Left - Trap Assembly Aid
7. For horizontal left side down:
a. Remove factory-installed collector box cap.
b. Remove the factory-installed cap from the relief port on the trap
and run tube from port on the collector box corner opposite of the
trap to the relief port on the trap, see Fig 22. This will require
removing the transducer pressure tubing from the
factory-installed position. If the tube is too long, cut any extra
length from the tube.
c. Install transducer pressure tubing on the collector box port
closest to the trap where the factory-installed collector box cap
was installed, see Fig 22. Trim transducer pressure tubing length
ensuring no traps of loops for extra water collections. In the
installed position, the transducer tubing should be in the lower
pressure port and the relief tubing should be in the higher port.
It is permissible to run the trap up to 5 ft. away from the furnace to an
area with the required trap clearance provided the following steps and
conditions are followed.
NOTICE
!
Extra water in transducer pressure tubing may inhibit furnace operation
because of incorrect pressure readings.
