UNIT
48TJ
STANDARD
UNIT
WEIGHT
CORNER
WEIGHT
(A)
CORNER
WEIGHT
(B)
CORNER
WEIGHT
(C)
CORNER
WEIGHT
(D)
‘‘H’’
‘‘J’’
‘‘K’’
‘‘L’’
Lb
Kg
Lb
Kg
Lb
Kg
Lb
Kg
Lb
Kg
ft-in.
mm
ft-in.
mm
ft-in.
mm
ft-in.
mm
D/E/F008
870
395
189
86
161
73
239
109
280
127 1-2
7
⁄
8
378 3-5
5
⁄
16
1050 2-9
11
⁄
16
856 2- 2
7
⁄
16
672
D/E/F009
880
399
191
87
163
74
242
110
284
129 3-3
7
⁄
8
1013 3-5
5
⁄
16
1050 2-9
11
⁄
16
856 2- 2
7
⁄
16
672
D/E/F012
1035
469
225
102
192
87
285
129
333
151 2-5
7
⁄
8
759 4-1
5
⁄
16
1253 3-0
3
⁄
8
924 2-10
7
⁄
16
875
D/E014
1050
476
228
103
195
88
289
131
338
153 1-2
7
⁄
8
378 4-1
5
⁄
16
1253 3-0
3
⁄
8
924 2-10
7
⁄
16
875
NOTES:
1. Dimensions in [
] are in millimeters.
2.
Center of gravity.
3.
Direction of airflow.
4. On vertical discharge units, ductwork to be attached to accessory roof curb only. For
horizontal discharge units field-supplied flanges should be attached to horizontal dis-
charge openings, and all ductwork should be attached to the flanges.
5. Minimum clearance (local codes or jurisdiction may prevail):
a. Between unit (flue side) and combustible surfaces, 48 inches.
b. Bottom of unit to combustible surfaces (when not using curb) 1 inch.
Bottom of base rail to combustible surfaces (when not using curb) 0 inches.
c. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side get-
ting the greater clearance is optional.
d. Overhead, 60 in. to assure proper condenser fan operation.
e. Between units, control box side, 42 in. per NEC (National Electrical Code).
f. Between unit and ungrounded surfaces, control box side, 36 in. per NEC.
g. Between unit and block or concrete walls and other grounded surfaces, control
box side, 42 in. per NEC.
h. Horizontal supply and return end, 0 inches.
6. With the exception of the clearance for the condenser coil and combustion side as
stated in Notes 5a, b, and c, a removable fence or barricade requires no clearance.
7. Units may be installed on combustible floors made from wood or Class A, B, or C
roof covering material if set on base rail.
8. The vertical center of gravity is 1
8
-7
9
[483] up from the bottom of the base rail. Hori-
zontal center of gravity is shown.
CONNECTION SIZES
A
1
3
⁄
8
9
Dia [35] Field Power Supply Hole
B
2-
1
⁄
2
9
Dia [64] Power Supply Knock-Out
C
1
3
⁄
4
9
Dia [44] Charging Port Hole
D
7
⁄
8
9
Dia [22] Field Control Wiring Hole
E
3
⁄
4
9
—14 NPT Condensate Drain
F
1
⁄
2
9
—14 NPT Gas Connection 48TJD008 & 009
3
⁄
4
9
—14 NPT Gas Connection 48TJE/F008 & 009;
48TJD/E012,014, 48TJF012
G
2
9
Dia [51] Power Supply Knock-Out
Fig. 7 — Base Unit Dimensions
BOTTOM POWER CHART, THESE HOLES
REQUIRED FOR USE WITH ACCESSORY
PACKAGES — CRBTMPWR001A00,
OR CRBTMPWR002A00
THREADED
CONDUIT SIZE
WIRE SIZE
REQUIRED HOLE
SIZES (MAX)
1
⁄
2
(
24 V
7
⁄
8
9
[22.2]
3
⁄
4
(
Power*
1
1
⁄
8
9
[28.4]
1
1
⁄
4
(
Power*
1
3
⁄
4
9
[44.4]
*Select either
3
⁄
4
9
or 1
1
⁄
4
9
for power, depending on wire size.
7