Roof Curb And Ductwork - Trane INTELLIPAK Installation Operation & Maintenance

Table 3-3
Typical Unit & Curb Weights
Unit SE,SL,
Size SAHF SSHF
4360 4690
C20
C25 4520 4860
C30 5220 5590
6890 7400
C40
C50 7890 8450
C55 8140 8690
C60 9320 9650
9860 10160
C70
C75 9860 10160
C90
D11
D12
D13
Typical Unit Operating Weight (2)
Unit SE,SL,
Size SAHF SSHF
C20 4650 5000
C25 4830 5180
5570 5930
C30
C40 7290 7820
C50 8350 8900
8600 9160
C55
C60 9840 10150
C70 10370 10690
10370 10690
C75
C90
D11
D12
D13
Note: 1. The weights shown in this table represents the typical unit operating weights for the
heating/cooling function indicated with an economizer and exhaust fan installed.
2. The weights shown represents the typical unit operating weights for the
heating/cooling function indicated with an economizer, exhaust fan with supply &
exhaust VFD installed.
3. Roof curb weights include the curb and pedestal.

Roof Curb and Ductwork

The roof curbs for 20 through 130 Ton units consists of two
main components; a pedestal to support the unit's con-
denser section and a "full perimeter" enclosure to support
the unit's air handler section.
Before installing any roof curb, verify;
1. That it is the correct curb for the unit,
2. That it includes the necessary gaskets and
hardware,
3. 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. Follow the in-
structions carefully to assure proper fit-up when the unit is
set into place.
Typical Unit Operating Weight (1)
SFHF SXHF SEHG
4970 4580
5130 4750
5840 5460
7880 7240
8900 8290
9170 8540
10120 9480
10640 10040
10640 10040
14730
15310
15730
16080
SFHF SXHF SEHG
5270 4860
5440 5060
6200 5800
8280 7650
9380 8740
9640 9010
10620 10010
11160 10560
11160 10560
15460
15950
16380
16730
Installation (Continued)
Roof Curb
Max. Weight (3)
SFHG SXHG SAHF
490
490
490
515
515
515
610
610
610
15400 14580
15940 15160
16370 15560
16710 15930
Roof Curb
Max. Weight (3)
SFHG SXHG SAHF
490
490
490
515
515
515
610
610
610
16050 15240
16590 15810
17010 16220
17380 16580
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, excluding SSH_'s, is 4" end-to-
end and 2" side-to-side. Units with steam coils
(SSH_'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 Air 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 consideration, cut only the holes
in the roof deck for the ductwork penetrations. Do
not cut out the entire roof deck within the curb
perimeter.
22
S*HF/G
510
510
510
550
550
550
640
640
640
770
770
770
770
S*HF/G
510
510
510
550
550
550
640
640
640
770
770
770
770