64
RT-SVX072A-EN
Figure 34. Duct, space, and return plenum pressure
transducer
Condensate Drain Connections
Each S*HF or K unit is provided with two 1" evaporator
condensate drain connections (one on each side of the
unit).
Remove all 1" condensate drain connections from unit,
see Figure 35, p. 64.
Figure 35. Condensate drain locations
STANDARD OR SLOPED DRAIN PAN
(1) CONDENSATE DRAIN OPENING
BOTH SIDES
Supply and Return Duct Connections
Ensure supply and return duct connections were
installed to the roof curb supply and return areas of
roof curb, rather than to the unit itself.
Remove supply and return duct work if it was directly
connected to the unit.
Installation of New Units
See unit IOM and appropriate programming guide for
installation operation and programming requirements.
For Lifting Procedures, see “Unit Rigging and
Placement,” p. 31.
Table 30. Approximate roof curb and S*HC unit
operating weights (units built prior to 1991)
Unit
Size
Typical Unit Operating
Weight
Roof Curb Max
Weight
SAHC
SE,SL,
SS,
SXHC
SB,
SFHC SAHC S*HF
C20
4,600 4,950 5,250
445 470
C25
4,700 5,050 5,300
445 470
C30
5,500 6,050 6,200
445 470
C40
7,500 8,200 8,500
505 540
C50
8,350 9,100 9,200
530 560
C55
8,500 9,200 9,350
530 560
C60
9,600 10,300 10,400
545 575
C70
10,500 11,200 11,300
545 575
C75
10,700 11,400 11,500
545 575
Note: Weight shown in this table represents the maximum unit
operating weight for S*HC units with heating/cooling
functions indicated and includes economizer and relief fan
options. Actual unit weight is on the unit nameplate.
Table 31. Approximate operating weights, 90 to 100
ton, “E” style cabinet (units built prior to
1991)
Unit Size/
Tons
Rooftop w/
o Relief
Fans
Rooftop
with Relief
Fans Curb
SEHE C90
13,150 14,500
600
SFHE C90
13,820 15,150
600
SXHE C90
13,000 14,340
600
SEHE D11
13,700 15,050 600
600
SFHE D11
14,360 15,700
600
SXHE D11
13,550 14,880
600
UUnniitt RReeppllaacceemmeenntt
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