Installation - Carrier PG92MSA Installation, Start-Up, Operating And Service And Maintenance Instructions

PG92MSA: Installation, Start-up, Operating and Service and Maintenance Instructions
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.
17. Install the adapter or connect the 1/2-in. CPVC pipe by sliding a
spring clamp over the open end of the grommet on the outside the
furnace casing.
18. Open the spring clamp and insert the long end of the adapter or the
1/2-in. CPVC pipe into the outlet stub on the drain tube.
19. Connect additional condensate piping to a code-approved drain, or
to a condensate pump approved for use with acidic furnace
condensate and compatible with mineral and vegetable oils, such as
canola oil.
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.
!
The field-supplied, accessory horizontal drain trap grommet is ONLY
REQUIRED FOR DIRECT VENT APPLICATIONS. It is NOT
required for applications using single-pipe or ventilated combustion air
venting.
TIP FROM CONTRACTORS: When installing the furnace
horizontally, use the entire drain elbow (that is, do NOT cut as shown in
Fig. 17 to connect the trap to the drain line. This helps to prevent bumps
and shocks to the drain line from damaging the furnace drain trap. Avoid
misalignment of the drain pipe which may cause kinks in the elbow.
Connect short end of
elbow to Z-Tube
Connect long end of
elbow to trap outlet
Fig. 17 – Modify Rubber Drain Elbow
Horizontal Orientation
1. The condensate trap outlet extends 2-in. (51 mm) below the furnace
casing. Leave enough clearance between the furnace and the
furnace platform for the trap.
2. To allow for servicing the trap, the condensate drain elbow in the
loose parts bag can be used to make a coupler to allow for future
service of the condensate trap and drain line.
3. Remove the knock-out for the condensate trap in the side of the
casing.
4. Install the drain trap grommet in the casing if required for
direct-vent applications. If necessary, remove the trap, install the
grommet and re-install the trap.
5. Remove the pre-formed rubber drain elbow, and two spring clamps
from the loose parts bag.
6. Connect the full or modified elbow and/or grommet to the outlet of
the condensate trap with one spring clamp. Avoid misalignment of
the drain pipe which may cause kinks in the elbow or grommet.
7. The remaining drain line can be constructed from field-supplied
1/2-in. CPVC or 3/4-in. PVC pipe, in compliance with local
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
NOTICE
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.
8. Install the adapter or connect the 1/2-in. CPVC pipe by sliding a
spring clamp over the open end of the elbow or grommet on the
outside the furnace casing.
9. Open the spring clamp and insert the long end of the adapter or the
1/2-in. CPVC pipe into the outlet stub on the drain tube.
10. Connect additional condensate piping to a code-approved drain, or
to a condensate pump approved for use with acidic furnace
condensate and compatible with mineral and vegetable oils, such as
Carolan oil.
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.
NOTE: Trap grommet is required only for direct-vent
applications.
Fig. 18 – Horizontal Drain Trap Grommet

INSTALLATION

This furnace is certified to leak 2% or less of nominal air conditioning
CFM delivered when pressurized to 1-in. water column with all present
air inlets, including bottom closure in upflow and horizontal
applications, air outlets, and plumbing and electrical ports sealed.
Upflow Installation
N Coil Installation
When a 17-1/2-in. wide upflow N coil is used with a 42060B furnace,
the N coil must either be raised using a transition piece at least 3-in. (76
A190401
mm) high or if a transition piece is not used, the refrigerant lines of the N
coil must point to the front of the furnace casing. Factory accessory
4-3/4-in. transitions are available. Refer to the Product Data for the
current accessory transition part number.
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in nuisance limit switch
cycling and unit component damage.
When a 17-1/2-in. wide upflow N coil is used with a 42060B furnace,
the N coil must either be raised using a transition piece at least 3-in. (76
mm) high or if a transition piece is not used, the refrigerant lines must
point to the front of the furnace casing.
NOTE: The furnace must be pitched as shown in
condensate drainage.
15
Remove knockout.
Install grommet before
relocating condensate
trap.
NOTICE
!
CAUTION
!
Fig. 19
A11582
for proper