Wall Mounting; Suspended Mounting; Electrical Connections - Berner ARISTOCRAT Series Installation & Maintenance Instructions Manual

Air door
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C. Electric heated units shall:
1. Have a minimum clearance of at least 4" between the sides and
top of the unit and any combustible material.
2. Have a minimum clearance of at least 6' between the bottom of
the unit and the floor.
3. Be installed indoors only.
D. Proceed to either Section III - WALL MOUNTING, or Section IV

SUSPENDED MOUNTING

III. WALL MOUNTING
To prevent damage to the Air Door during shipping, the unit is shipped
with each blower attached to the back plate by two phillips head screws.
These screws should be removed before installation.
See Figure 3.
FIGURE 3 - Mounting Screws
A. The Aristocrat/Star Series Air Door is equipped with ¼" keyhole
mounting slots on the back of each unit for wall mounting. It is rec-
ommended that a minimum of two keyhole slots are used from each
end.
B. Determine the exact mounting location of the Air Door unit.
NOTE: A minimum of 4" is recommended above the unit to
provide clearance for installation and removal of the unit blower
assembly.
C. Choose four (4) keyhole slots that are located where suitable support
is available for the unit. If the keyhole slots are not located where
suitable support is available, drill new holes in the unit backplate
where space is available.
D. Mark the wall in the top center of the keyhole slots or in the center of
the holes drilled.
E. Keyhole Mounting:
Install the mounting hardware (supplied by others), allowing for
space to hang the unit by not fully tightening. Lift and slip the
blower assembly over the mounting hardware by grasping the inlet
rings on the blower housing, without touching the blower wheels.
Tighten the mounting hardware. See Figure 4.
Drilled Mounting Holes:
Lift the blower assembly by grasping the inlet rings on the blower
housing, without touching the blower wheels, and install the mount-
ing hardware (supplied by others) through the drilled holes.
FIGURE 4 - Keyhole Mounting
F. Do not install the cover housing at this time.
G. Proceed to Section V - ELECTRICAL CONNECTIONS.
IV. SUSPENDED MOUNTING (Ceiling Suspension)
NOTE: TWO (2) TOP MOUNTING BRACKETS
(PART#66LWA000TOP)ARE REQUIRED
PER UNIT FOR SUSPENDED MOUNTING.
To prevent damage to the Air Door during shipping,
the unit is shipped with each blower attached to the
back plate by two phillips head screws. These screws
should be removed before installation. See Figure 3.
A. The Aristocrat/Star Series Air Door is equipped with keyhole mount-
ing slots on the back of the unit. The top mounting brackets are
designed to attach to these keyhole slots.
B. Attach the top mounting brackets to the unit using the hardware
provided.
C. Determine the exact mounting location of the Air Door unit.
D. Attach ³ /8" threaded rods or other suitable hardware to the coupling
nuts, located on the mounting bracket(s).
E. Do not install the cover housing at this time.
F. Proceed to Section V - ELECTRICAL CONNECTIONS.
V. ELECTRICAL CONNECTIONS
All electrical wiring and connections MUST be performed by qualified
personnel in accordance with the latest edition of the National Electrical
Code ANSI/NFPA No. 70 or, in Canada, the Canadian Electrical Code, Part
1-C.S.A. Standard C22.1 and local codes and regulations.
A. Check the rating nameplate on the unit for supply voltage and
current requirements. A separate line voltage supply with a suitable
branch circuit protection device should be run directly from the
main electrical panel to the unit. A disconnect switch for each branch
circuit is a required part of this installation.
See Tables 2 & 3.
B. All field wiring must be copper with a minimum insulation of 60° C
within approved conduit. If any of the wire supplied with the unit
must be replaced, it must be replaced with copper wiring with a
minimum insulation of 90° C.
C. Remove the junction box cover located on the right-hand side of the
unit. See Figure 5.
D. Connect all supply and control circuit wires according to the wiring
diagram. To connect wiring from the left-hand side, an optional
knockout is provided.
3

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