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Check unit nameplate for supply voltage required. Determine if
adequate electrical power is available. Refer to specification sheet.
GROUND LEVEL -- HORIZONTAL UNITS
For ground level installations, the unit should be positioned on a pad
the size of the unit or larger. The unit must be level on the pad. The
pad must not come in contact with the structure. Be sure the outdoor
portion of the supply and return air ducts are as short as possible.
Proceed with the installation as follows:
ATTACHING HORIZONTAL DUCTWORK
TO UNIT
All conditioned air ductwork should be insulated to minimize heating
and cooling duct losses. Use a minimum of two (2) inches of
insulation with a vapor barrier. The outside ductwork must be
weatherproofed between the unit and the building.
AIR FILTERS
Filters are to be used with the TCM030-048F heating/cooling units.
The basic unit does not have filters in it. However, a filter frame
accessory is offered that will allow filters to be installed within the
unit.
Otherwise a filter rack must be installed by the installer in the duct
work.
Affix the filter label supplied with the unit adjacent to the filter area.
A 3/4-inch female NPT condensate drain connection is provided on
the evaporator access panel end of the unit. See Figure 4. Provide
a trap and fill it with water before starting the unit to avoid air from
being drawn through. Follow local codes and standard piping
practices when running the drain line. Pitch the line downward away
from the unit. Avoid long horizontal runs. See Figure 3.
NOTE: Do not use reducing fittings in the drain lines. The conden-
sate drain must be:
G
Made of 3/4" pipe size.
G
Pitched 1/4" per foot to provide free drainage to convenient drain
system.
G
Trapped.
G
Must not be connected to closed drain system.
Dwg. No. X730377 P02
INSTALLATION
DUCTWORK
FILTER INSTALLATION
CONDENSATE DRAIN PIPING
1. Place the unit on the pad and the five (5) rubber isolators
provided.
2. Attach the supply and return air ducts to the unit.
3. Insulate any ductwork outside of the structure with at least 2
inches of insulation and weatherproof. There must be a weath-
erproof seal where the duct enters the structure.
4. Complete the installation according to the instructions in the
following sections of this manual.
When attaching ductwork to a horizontal unit, provide a flexible
watertight connection to prevent noise transmission from the unit to
the ducts. The flexible connection must be indoors and made out
of heavy canvas.
NOTE: Do not draw the canvas taut between the solid ducts.
TABLE 1
N
O
M
N I
A
U
N
T I
C
F
M
T
C
M
0
3
0
F
1
0
0
0
T
C
M
0
3
6
F
1
2
0
0
T
C
M
0
4
2
F
1
4
0
0
T
C
M
0
4
8
F
1
6
0
0
* Filters must be installed in the return air system. The above square
footages are based on 300 F.P.M. face velocity. If permanent filters are
used, size per mfg. recommendation with clear resistance of 0.05" WC.
➂
/
" PVC OR COPPER
3
4
TUBING AND FITTINGS
1-1/2"
MIN.
L
F
L I
T
E
R
*
F
L I
T
S (
q
F
) t
S
Z I
E
R
E
S
S I
3
3 .
3
0
0 .
4
0 .
0
0
0 .
4
6 .
7
0
0 .
5
3 .
3
0
0 .
E
R
T
A
N
C
E
5
5
5
5
Page 3
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