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Installation - Electrical
Table 20. Compressor electrical data — 40 to 80 tons (continued)
Tonnage
Model Number
SCWMN08LF
SCWMN080F
80
SCWMN08L4
SCWMN0804
Table 21. Fan motor electrical data — 40 to 80 tons
Tonnage
Model Number
SCWMN04LF
SCWMN040F
40
SCWMN04L4
SCWMN0404
SCWMN05LF
SCWMN050F
50
SCWMN05L4
SCWMN0504
SCWMN06LF
SCWMN060F
60
SCWMN06L4
SCWMN0604
SCWMN07LF
SCWMN070F
70
SCWMN07L4
SCWMN0704
SCWMN08LF
SCWMN080F
80
SCWMN08L4
SCWMN0804
Static Pressure Transducer
Installation (VAV units only)
Supply air static pressure controls the inverter option. A
static pressure head assembly ships separate in control
panel for field installation in the supply air duct work.
Installer is responsible for providing pneumatic tubing.
Transducer Location
Place head assembly in an area of ductwork that will
provide an average and evenly distributed airflow pattern.
Use the following guidelines to determine an appropriate
installation location.
1. Locate static head assembly approximately 2/3 to 3/ 4
the way down longest duct run, in an area
approximately 10 duct diameters downstream and 2
duct diameters upstream of major interferences, turns,
or changes in duct diameter.
40
Nameplate Voltage
208-230/60/3
208-230/60/3
460/60/3
460/60/3
Nameplate Voltage
208-230/60/3
208-230/60/3
460/60/3
460/60/3
208-230/60/3
208-230/60/3
460/60/3
460/60/3
208-230/60/3
208-230/60/3
460/60/3
460/60/3
208-230/60/3
208-230/60/3
460/60/3
460/60/3
208-230/60/3
208-230/60/3
460/60/3
460/60/3
Compressor (EA)
Fixed Speed
Qty
RLA
LRA
3
55.77
340
3
55.77
340
3
23.72
110
3
23.72
110
Fan (EA) - VSD
Qty
3
3
3
3
3
3
3
3
4
4
4
4
5
5
5
5
5
5
5
5
2. When installing pneumatic tubing between head
assembly and transducer in control panel, do not
exceed 250ft for 1/4" OD tubing or 500ft for 3/8" OD
tubing.
Installing the Transducer
Use the following procedure to properly install the static
pressure transducer:
1. Mount pressure sensing head assembly in duct with
sensing tip is in middle of the duct so that it will provide
a proper pressure measurement. See the figure below.
2. Connect the pneumatic tubing from the sensing head
to the push-on tubing connection in the control panel.
Use a plastic static pickup tubing. Do not exceed 250
feet for 1/4" OD tubing or 500 feet for 3/8" OD tubing.
Variable Speed
Qty
Max Input (A)
1
56
1
84
1
30
1
60
kW
FLA
6.15
18.6
6.15
18.6
6.15
9
6.15
9
6.15
18.6
6.15
18.6
6.15
9
6.15
9
6.15
18.6
6.15
18.6
6.15
9
6.15
9
6.15
18.6
6.15
18.6
6.15
9
6.15
9
6.15
18.6
6.15
18.6
6.15
9
6.15
9
PKG-SVX027A-EN
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