Справочник Пользователя для American Standard Split System Cooling or Heat Pump Air Handler

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TWE-SVX03C-EN

 

Align holes (knockouts) in the cabinet 
with structural supports and secure 
suspension rods to the structure, 
then to the air handler cabinet. If 
knockout locations do not permit 
proper alignment with existing 
structure, it may be necessary to field 
fabricate cross members on existing 
structural beams.

This air handler has a double sloped 
drain pan. In order to assure proper 
drainage along the length of the 
drain pan, it is important to have the 
unit properly leveled. Be sure the air 
handler is level or slightly sloped in 
the direction of the condensate 
connection. 

A field fabricated, auxiliary drain pan 
should be installed under the unit for 
all horizontal applications and when 
air handlers are installed above 
ceilings or in other locations where 
condensate overflow may cause 
damage. This drain pan will eliminate 
any excess condensation that may be 
due to extreme humidity or an 
obstructed drain in the primary drain 
pan. Drain lines from this pan must 

be installed, but should not be 
connected to the primary drain line 
from the unit. Isolate the auxiliary 
drain pan from both the air handler 
and the structure.

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•

Avoid breathing fiberglass dust.

•

Use a NIOSH approved dust/mist 
respirator.

•

Avoid contact with the skin or 
eyes. Wear long-sleeved, loose-
fitting clothing, gloves, and eye 
protection.

•

Wash clothes separately from 
other clothing: rinse washer 
thoroughly.

•

Operations such as sawing, 
blowing, tear-out, and spraying 
may generate fiber 
concentrations requiring 
additional respiratory protection. 
Use the appropriate NIOSH 
approved respirator in these 
situations.

Eye Contact - Flush eyes with water 
to remove dust. If symptoms persist, 
seek medical attention.

Skin Contact - Wash affected areas 
gently with soap and warm water 
after handling.

Installation, brazing, leak testing and 
evacuation of refrigerant lines are 
covered in the installation 
instructions packaged with the 
outdoor unit. Read the instructions 
before beginning installation of 
refrigerant lines.

Locate cloth bag(s) attached to the 
refrigerant tube of the coil that 

contains two (2) brass clamps 
(straps) and cork impregnated 
insulation material approximately 9" 
long by 4" wide. This is for attaching 
and insulating the expansion valve 
bulb(s) to the suction line(s).

On air handlers that will have 
refrigerant lines entering the cabinet 
from the left side, remove the split 
rubber grommet from the knockout 
in the end of the air handler. Uncoil 
the cap tub with the bulb attached at 
the expansion valve and place the 
grommet on the cap tube. With the 
grommet around the tube, push the 
bulb through the hole and position 
the grommet back into its original 
position (one bulb and cap tube on 
single circuit units and two bulbs and 
cap tubes on dual circuit units). 

Attach the bulb(s) approximately 45° 
off vertical, 10 to 12 inches outside of 
the air handler. 

On air handlers that will have 
refrigerant lines entering the cabinet 
from the right side, the bulb(s) 
should be attached to the suction 
tube(s) inside the cabinet in the same 
manner as above, approximately 10" 
from the right end of the unit.

After attaching to the suction line(s), 
either inside or outside of the 
cabinet, wrap the cork impregnated 
insulation around the bulb(s) and 
suction tube(s). Refrigerant piping 
should be insulated.

The drain pan condensate 
connection is a female slip joint type 
for 1" Schedule 40 PVC pipe. Use PVC 
cement and tubing as required (field 
supplied) to construct a trap. A union 
or flexible tubing and clamps may be 
installed if the drain pan is to be 
removed periodically for cleaning.