Operating instructions

If a plenum return is used on a vertical unit, the return should be
ducted through the roof deck to comply with applicable fire codes.
A minimum clearance is not required around ductwork. Cabinet
return-air static shall not exceed -.25 in. wg.
Step 4—PROVIDE CLEARANCES
The required minimum operating and service clearances are shown
in Fig. 2 and 3. Adequate combustion, ventilation and condenser
air must be provided in accordance with section 5.3, Air for
Fig. 5—48GS and 48GX Unit Corner Weights
CORNER #
48GS 48GX
018 024 030 036 042 048 060 024 030 036 042 048 060
1 47.3 53.2 53.2 59.7 67.5 78.9 85.5 55.1 59.5 61.0 72.6 80.0 88.9
2 44.8 50.4 50.4 56.5 63.9 74.7 81.0 52.2 56.3 57.8 68.8 75.8 84.2
3 77.2 86.8 86.8 97.3 110.1 128.7 139.5 89.9 97.0 99.5 118.4 130.5 145.1
4 79.7 89.6 89.6 106.5 113.6 132.8 144.0 92.8 100.2 102.7 122.2 134.7 149.8
TOTAL WEIGHT 249 280 280 320 355 415 450 290 313 321 382 421 468
C00070
12
43
x
y
Fig. 6—Slab Mounting Details
C99014
OPTIONAL
RETURN
AIR
OPENING
OPTIONAL
SUPPLY
AIR
OPENING
EVAP.
COIL
COND.
COIL
2"
(50.8mm)
Fig. 7A—Threading Bolt for Rigging
C99067
HANDHOLD
FEED
HOOK
Fig. 7B—Suggested Rigging
SIZE
MAXIMUM WEIGHT A B
lb kg in. mm in. mm
UNIT 48GS
018 271 123.2 20.0 508.0 14.0 355.6
024 302 137.3 22.5 571.5 13.0 330.2
030 302 137.3 21.5 546.1 13.75 349.3
036 342 155.1 22.5 571.5 14.0 355.6
042 377 171.4 21.5 546.1 13.5 342.9
048 437 198.6 22.0 558.5 17.0 432.0
060 472 214.5 22.0 558.5 17.0 432.0
UNIT 48GX
024 312 142 22.0 558.5 14.50 368.3
030 335 152 22.0 558.5 15.30 388.6
036 343 156 22.0 558.5 15.30 388.6
042 404 183 23.0 584.2 16.3 414.0
048 443 201 21.5 546.1 16.3 414.0
060 490 222 23.5 596.9 16.3 414.3
C99015
A
1226.3
(48.28”)
914-1371
(36”-54”)
927.57
(36”-52”)
PLACE RIGGING STRAPS IN
BASEPAN SLOT (BELOW RIGGING HOLDS)
BEFORE RIGGING
SEAL STRIP MUST BE IN
PLACE BEFORE PLACING
UNIT ON ROOF CURB
DUCTS
B
6