Unit Leveling Tolerances; Condensate Drain Connection; Step 5 - Install Flue Hood; Step 6 — Install Gas Piping - Carrier 48TF004-007 Installation, Start-Up And Service Instructions Manual

Fig. 3 — Unit Leveling Tolerances
NOTE: Drain plug is shown in factory-installed position.
Fig. 4 — Condensate Drain Connection
Unit may be installed directly on wood flooring or on
Class A, B, or C roof-covering material when roof curb is used.
Although unit is weatherproof, guard against water from
higher level runoff and overhangs.
Flue vent discharge must have a minimum horizontal clear-
ance of 4 ft from electric and gas meters, gas regulators, and
gas relief equipment.
Minimum distance between unit and other electrically live
parts is 48 inches.
NOTES:
1. Dimensions in ( ) are in millimeters.
2. Hook rigging shackles through holes in base rail, as shown in detail "A.'
Holes in base rails are centered around the unit center of gravity. Use
wooden top skid when rigging to prevent rigging straps from damaging unit.
48TFE,TFF,TFM,TFN004
48TFD,TFE,TFF,TFL,TFM,TFN005
48TFD,TFE,TFF,TFL,TFM,TFN006
MAXIMUM ALLOWABLE
DIFFERENCE (in.)
A-B B-C A-C
0.5 1.0 1.0
UNIT
48TFD,TFE,TFF007
Fig. 5 — Rigging Details
Flue gas can deteriorate building materials. Orient unit such
that flue gas will not affect building materials.
Adequate combustion-air space must be provided for proper
operation of this equipment. Be sure that installation complies
with all local codes and Section 5.3, Air for Combustion and
Ventilation, NFGC (National Fuel Gas Code), and ANSI
(American National Standards Institute) Z223.1, and NFPA
(National Fire Protection Association) 54 TIA-54-84-1.
In Canada, installation must be in accordance with the
CAN1-B149 installation codes for gas burning appliances.
After unit is in position, remove rigging skids and shipping
materials.
Step 5 — Install Flue Hood —
screwed to the basepan beside the burner compartment access
panel. Remove from shipping location and using screws pro-
vided, install flue hood and screen in location shown in Fig. 7.
Step 6 — Install Gas Piping —
use with type of gas shown on nameplate. Refer to local build-
ing codes, or in the absence of local codes, to ANSI Z223.1 en-
titled National Fuel Gas Code. In Canada, installation must be
in accordance with the CAN1.B149.1 and CAN1.B149.2 in-
stallation codes for gas burning appliances.
For natural gas applications, gas pressure at unit gas con-
nection must not be less than 4 in. wg or greater than
13.0 in. wg while unit is operating. On 48TF005,006,007 high
heat units, the gas pressure at unit gas connection must not be
less than 5 in. wg or greater than 13 in. wg while the unit is op-
erating. For propane applications, the gas pressure must not
be less than 5 in. wg or greater than 13 in. wg at the unit
connection.
Size gas supply piping for 0.5 in. wg maximum pressure
drop. Do not use supply pipe smaller than unit gas connection.
Support gas piping as shown in the table in Fig. 8. For exam-
3
ple, a / -in. gas pipe must have one field-fabricated support
4
beam every 8 ft. Therefore, an 18-ft long gas pipe would have a
minimum of 2 support beams, a 48-ft long pipe would have a
minimum of 6 support beams.
See Fig. 8 for typical pipe guide and locations of external
manual main shutoff valve.
3. Unit weights do not include economizer. See Table 1 for economizer
weights.
All panels must be in place when rigging.
MAX WEIGHT "A"
Lb Kg in. mm
510 231
520 236
73.69 1872
540 245
615 279
4
Flue hood is shipped
Unit is equipped for
"B" "C"
in. mm in. mm
37.50 953 33.35 845