12
SSA-SVX06B-EN
Pre-Installation
Refrigerant Piping
Evaporator Coil Orientation
Important:
Applies only to TWE126/150 and 156/180 when positioned for vertical upflow. Unit
is shipped in the horizontal position. If installing in the
vertical position
, the coil
must be
reoriented by rotating the coil 4 degrees (control box side) from the
shipped position. See instructions and
Figure 4
below.
Process for reorienting evaporator coil on TWE126, 150, 156 and 180 only.
1.
Remove screws from top evaporator coil bracket (bracket that attaches coil to cabinet and runs
the length of the unit).
2. Rotate evaporator coil approximately 4 degrees clockwise - looking from the control box end
(see
Figure 4
). When the evaporator coil is rotated, the lower set of evaporator coil bracket holes
will align with the support bracket (from which it was originally fastened).
3. Reinsert screws in evaporator coil bracket.
Preparation
The air handler is designed so that refrigerant piping can enter from either the right or left hand
side. It is shipped with the intent that the refrigerant lines will enter from the left hand side. To
convert to right hand entry, unbraze the elbow on the suction line and rotate 180° and rebraze.
Important:
Access to refrigerant lines is limited in all horizontal and some vertical applications.
Therefore, refrigerant lines should be stubbed out and temporarily capped prior to
setting the air handler. Protect adjacent surfaces from heat damage when brazing in
and around the air handler.
Figure 4.
Evaporator Coil Reorientation for TWE126, 150, 156, 180
NOTICE:
Equipment Damage!
Do not apply heat to remove seal caps until the gauge port cores have been removed. If seal
caps are intact, application of heat may generate excessive pressure in the unit and result in
damage to the coil or expansion valve.
Top bracket screws
Rotate 4°
clockwise
