2
SPECTRA COMMERCIAL AND RESIDENTIAL INSTALLATION GUIDE
Unit Location
Locate the unit in an indoor area that allows easy removal of the filter and access
panels, and has enough space for service personnel to perform maintenance or repair.
Provide sufficient room to make water, electrical and duct connection(s). If the unit is
located in a confined space, such as a closet, provisions must be made for return air to
freely enter the space by means of a louvered door, etc. Any access panel screws that
would be difficult to remove after the unit is installed should be removed prior to setting the
unit. On horizontal units, allow adequate room below the unit for a condensate drain trap
and do not locate the unit above supply piping. These units are not approved for outdoor
installation and must be installed inside the structure being conditioned.
CAUTION:
Do not locate in areas where ambient conditions are not maintained
within 45
°
-95
°
F and up to 75% relative humidity.
Setting the Vertical Units
Vertical units are available in left or right air return configurations. Top flow vertical units
should be mounted level on a vibration absorbing pad slightly larger than the base to
provide isolation between the unit and the floor. It is not necessary to anchor the unit to the
floor (see figure 1). Bottom flow units
should be mounted level and sealed
well to floor to prevent air leakage.
If left side unit access will be
limited after installation, remove the
two left side control box mounting
screws before setting the unit (leave
the two front mounting screws intact).
This will allow the control box to be
removed with only the two front
mounting screws for future service.
Setting the Horizontal Units
Horizontal units are available with side or end discharge and may be field converted
from one to the other by replacing the discharge panel. The new panel must be ordered.
Horizontal units are normally suspended from a ceiling by four 3/8” diameter threaded rods
(6 on SXH042-068). The rods are usually attached to the unit corners by hanger bracket
kits furnished with each unit.
Figure 1–
Vertical Unit Mounting
General
Installation
Information
Physical
Data
MODEL
SX010
SX013
SX016
SX019
SX024
SX030
SX036
SX042
SX048
SX058
SX068
Fan Wheel
6 X 8
6 X 8
9 X 7
9 X 7
9 X 7
9 X 7
9 X 7
10 X 10
10 X 10
11 X 10
11 X 10
PSC Fan Motor HP - # of Speeds 1/10 - 4
1/10 - 4
1/6 - 3
1/6 - 3
1/5 - 3
1/3 - 3
1/2 - 3
1/2 - 3
1/2 - 3
3/4 - 3
1.0 - 3
Compressor
Rotary
Rotary
Rotary
Rotary
Recip
Recip
Recip
Recip
Recip
Scroll
Scroll
R22 (oz.)
28.0
36.0
38.0
43.0
63.0
66.0
65.0
95.0
86.0
98.0
98.0
Vertical
Air Coil Dimensions (in.)
12 x 16
16 x 16
19 x 20
19 x 20
24 x 20
24 x 20
27 x 20
28 x 25
28 x 25
32 x 25
36 x 25
Air Coil Face Area (sq ft.)
1.3
1.8
2.6
2.6
3.3
3.3
3.8
4.9
4.9
5.6
6.3
Air Coil # of Rows
3
3
3
3
3
3
3
3
3
3
3
Filter - 1" Throwaway (Std.)
16 X 20
16 X 20
18 X 24
18 X 24
24 X 24
24 X 24
2-14 X 24 2 -14 X 30 2 - 14 X 30 2 - 10 X 30 3 - 12 X 30
1 - 12 X 30
Filter - 1" Electrostatic (opt.)
EAF1620 EAF1620 EAF1824 EAF1824 EAF2424 EAF2424 EAF2428 EAF2830
EAF2830 EAF3032
EAF3036
Weight
150
163
180
183
265
270
290
326
344
401
428
Horizontal
Air Coil Dimensions (in.)
12 x 16
16 x 16
18 x 21
18 x 21
18 x 27
18 x 27
18 x 30
20 x 35
20 x 35
20 x 40
20 x 45
Air Coil Face Area (sq in.)
1.3
1.8
2.6
2.6
3.4
3.4
3.8
4.9
4.9
5.6
6.3
Air Coil # of Rows
3
3
3
3
3
3
3
3
3
3
3
Filter - 1" Throwaway (Std.)
16 x 20
16 x 20
18 x 24
18 x 24
2-18 x 18 2-18 x 18 2-18 x 18 1 - 20 x 12 1 - 20 x 12 1 - 18 x 20 2 - 24 x 20
1 - 20 x 25 1 - 20 x 25 1 - 24 x 20
Filter - 1" Electrostatic (opt.)
EAF1620 EAF1620 EAF1824 EAF1824 EAF1836 EAF1836 EAF1836 EAF2037
EAF2037 EAF2042
EAF2048
Weight
155
164
194
204
270
272
286
343
347
431
458
Vibration
Absorbing
Mesh
Air
Pad
