Installation and Maintenance Manual

Installation
14 WSHP-SVX10B-EN
Main Unit Power Wiring
A field supplied disconnect switch must be installed at or
near the unit in accordance with the National Electric Code
(NEC latest edition).
Location of the applicable electric service entrance for
HIGH (line voltage) may be found in Figure 5, p. 14.
Route power wire to the cabinet control box through the
factory installed conduit at the top of the unit
cabinetry.The high voltage connection is made at the 1PB1
power block in the cabinet control box. Refer to the
customer connection diagram that is shipped with the unit
for specific termination points.
Provide proper grounding for the unit in accordance with
the local and national codes.
Control Power Transformer
The 24V control power transformers are to be used only
with the accessories called out in this manual.
Transformers rated greater than 75 VA are equipped with
internal circuit breakers. If a circuit breaker trips, turn OFF
all power to the unit before attempting to reset it.
The transformer is located in the chassis control box.
Drywall Installation
Before installing drywall around cabinet, cover the cabinet
supply and return openings with plastic or cardboard to
help prevent dust or construction debris from reaching
unit components. Warranties will be voided if paint or
foreign debris is allowed to contaminate internal unit
components.
The location of the drywall may be dependent upon the
type of return air access design.
For units containing a field provided return air access
assembly, the contractor must calculate location of
drywall to allow for frame mounting.
Units Utilizing Hinged Acoustic Door
Assembly
2. The height of the door assembly must be positioned to
recess the door 2¼” from the cabinet’s return-air
opening, Figure 7, p. 15 - side view blow-up.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
Figure 5. Power wire entrance
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury
Figure 6. Mock-up of stud placement
1. Locate the side studs a
minimum of 1¼” and a
maximum of 1 3/8” from the
cabinet to the side of the stud.
This critical dimension,
combined with "distance
between studs" is used to
determine the side-to-side
opening for the door, dimension
A.The distances provided in the
table are a "minimum"
dimension. Allow 3½” from the
front of the cabinet to the sheet
rock surface, Figure 7, p. 15 - top
view, Figure 6, p. 14 - mock-up
of stud placement.