Roof Curb And Ductwork; Pitch Pocket Location - Trane IntelliPak WEHE Series Installation, Operation And Maintenance Manual

Table 5. Component weights (Lbs.) — casings 2-9
(b)
Chilled Water Coil - Aluminum
(Shipping/Operating)
Chilled Water Coil(b) - Copper
(Shipping/Operating)
Hot Water Coil
Steam Coil
Supply Motor Std.
Supply Motor Hi-Eff.
Exhaust Motor - Std.
Exhaust Motor - Hi-Eff.
Supply Fan Assy.
Variable Frequency Drive
Exhaust Fan Assy
Gas Heat Low
(Includes Control Box)
Gas Heat High
(Includes Control Box)
(c)
Electric Heat
(Includes Control Box)
Main Control Box(c)
Filter Assembly(c)
FA/RA Damper(c)
Exhaust Damper(c)
Eliminator Panel
(a) Cabinet weights are estimated based on:
4.4 Lbs./Ft2of surface for Casing Sizes 2-5.
4.6 Lbs./Ft2 of surface area for Casing Size 6.
(b) Chilled Water coil weights are for maximum size coil.
(c) Estimated Weights

Roof Curb and Ductwork

The roof curbs for W_HE casings 2 through 9 units consists
of a "full perimeter" enclosure to support the unit.
Before installing any roof curb:
1. Verify that it is the correct curb for the unit,
2. Verify that it includes the necessary gaskets and
hardware,
3. Verify that the purposed installation location provides
the required clearance for proper operation.
4. Insure that the curb is level and square. The top surface
of the curb must be true to assure an adequate curb-to-
unit seal.
Step-by-step curb assembly and installation instructions
ship with each Trane accessory roof curb kit. Refer to the
applicable sections in the current edition of RT-SVN14*-EN
for W_HE casings 2 through 9. Follow the instructions
carefully to assure proper fit-up when the unit is set into
place.
Note: To assure proper condensate flow during
operation, the unit (and curb) must be as level as
possible. The maximum slope allowable for
rooftop unit applications is 4" end-to-end and 2"
RT-SVX35H-EN
462/564 591/751
955/1057 1307/1468
217 217
176 176
122 231
140 195
60 104
64 113
234 344
21 27
234 234
270 306
395 395
130 130
150 150
60 70
45 60
(2) 30 (2) 35
(1) 50 (1) 58
(1) 344/418 (2) 462/564
(1)424/517
(1) 702/777 (2) 955/1057
(1) 872/965
269 269
256 256
304 345
280 360
122 191
140 189
530 530
32 38
344 324
306 395
630 630
155 155
200 220
70 85
75 90
(2) 50 (2) 55
(1) 68 (2)75
side-to-side excluding WSHE. Units with steam
coils (WSHE's) must be set level!
If the unit is elevated, a field constructed catwalk around
the unit is strongly recommended to provide easy access
for unit maintenance and service.
Recommendations for installing the Supply and Return Air
ductwork joining the roof curb are included in the curb
instruction booklet. Curb ductwork must be fabricated and
installed by the installing contractor before the unit is set
into place.
Note: For sound considerations, cut only the holes in the
roof deck for the ductwork penetrations. Do not cut
out the entire roof deck within the curb perimeter.
Trane's Engineering Bulletin RT-PRB022-EN provides
additional information concerning duct design and sound
reduction.

Pitch Pocket Location

The location of the main supply power entry for W_HE
Casings 2 through 6 units is located in the bottom right-
hand area of the control panel.
the electrical entrance location for the control panel. If the
power supply conduit penetrates the building's roof
Installation
(1) 451/551 (5-Row) 722
(1)554/680 (2) 957/1184
1) 955/1057
(1) 1173/1299 (2) 2097/2325
324
312 552
455 448
480 (2) 455
231 (2) 480
195 455
748 480
49 (2) 735
530 (2) 100
395 748
630 800
155
250 155
100 350
95 125
(2) 50 150
(2) 60 (2) 55
Figure 8, p. 23 illustrates
27