10
4. If the unit ductwork is to be attached to vertical opening
flanges on the unit base (jackstand applications only), do so
at this time.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property damage.
Collect ALL screws that were removed. DO NOT leave screws
on rooftop as permanent damage to the roof may occur.
!
CAUTION
5. It is recommended that the base insulation around the peri-
meter of the vertical return--air opening be secured to the
base with aluminum tape. Applicable local codes may
require aluminum tape to prevent exposed fiberglass.
6. Reinstall horizontal duct covers. Ensure opening is air-- and
watertight.
7. After completing unit conversion, perform all safety checks
and power up unit.
NOTE
: The design and installation of the duct system must be in
accordance with the standards of the NFPA for installation of non
residence--type air conditioning and ventilating systems, NFPA
90A or residence--type, NFPA 90B; and/or local codes and
ordinances.
Provide for Condensate Disposal
NOTE
: Ensure that condensate--water disposal methods comply
with local codes, restrictions, and practices.
The units dispose of condensate through a 3/4 --in. NPT female
fitting that exits on the compressor end of the unit. Condensate
water can be drained directly onto the roof in rooftop installations
(where permitted) or onto a gravel apron in ground level
installations. Install a field--supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1 in. (25 mm) lower than the
drain--pan condensate connection to prevent the pan from
overflowing. Prime the trap with water. When using a gravel apron,
make sure it slopes away from the unit.
If the installation requires draining the condensate water away from
the unit, install a field--supplied 2--in. (51 mm) trap at the
condensate connection to ensure proper drainage. Condensate trap
is available as an accessory or is field--supplied. Make sure that the
outlet of the trap is at least 1 in. (25 mm) lower than the unit
drain--pan condensate connection to prevent the pan from
overflowing. Connect a drain tube using a minimum of
field--supplied 3/4 --in. PVC or field--supplied 3/4 --in. copper pipe
at outlet end of the 2 --in. (51 mm) trap (See Fig. 10). Do not
undersize the tube. Pitch the drain tube downward at a slope of at
least 1 in. (25 mm) for every 10 ft (3 m) of horizontal run. Be sure
to check the drain trough for leaks. Prime the trap at the beginning
of the cooling season start--up.
Install Flue Hood
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal
injury or death.
The venting system is designed to ensure proper venting.
The flue hood assembly must be installed as indicated in
this section of the unit installation instructions.
!
WARNING
Install the flue hood as follows:
1. This installation must conform with local building codes
and with the National Fuel Gas Code (NFGC), NFPA 54
/ANSI Z223.1--2006 (in Canada, CAN/CSA B149.1, and
B149.2) latest revision. Refer to provincial and local
plumbing or wastewater codes and other applicable local
codes.
2. Remove flue hood from shipping location (inside the return
section of the blower compartment--See Fig. 8). Remove the
return duct cover to locate the flue hood. Remove two
screws on flue panel. Place flue hood assembly over flue
panel. Orient screw holes in flue hood with holes in the flue
panel.
3. Secure flue hood to flue panel by inserting a single screw on
the top and the bottom of the hood.
Horizontal Duct Covers
A09076
Basepan
Downflow
(Vertical)
Supply
Knockout
Basepan
Downflow
(Vertical)
Return
Knockout
A09077
Fig. 8 -- Supply and Return Duct Opening
48X
T
--
A
Summary of Contents for INFINITIR 15 SEER 48XT-A
Page 5: ...5 A09150 Fig 5 48XT A24 30 Unit Dimensions 48XT A...
Page 6: ...6 A09151 Fig 6 48XT A36 60 Unit Dimensions 48XT A...
Page 18: ...18 A09080 Fig 17 Wiring Schematic 48XT A Single Phase Gas Inputs 040 060 090 kBtu hr 48XT A...
Page 19: ...19 A09081 Fig 18 Wiring Schematic 48XT A Single Phase Gas Inputs 115 130 kBtu hr 48XT A...