User’s Manual
6
BRANCH CIRCUIT (POWER)
1. Connect heater only to the voltage, amperage and
frequency specified on the nameplate.
2. Field wiring must be properly sized to carry the amperage
in accordance with the NEC.
3. The access door is hinged. There are either one or two
screws accessible from the bottom that must be removed
to gain access.
4. A knockout is provided in the back of the heater close to
the power terminal board. The control terminal board
knockout is 1/2 inch conduit size. The power terminal
block knockout is multiple diameter. Use the diameter that
fits the required conduit size.
5. A ground terminal is provided near the power terminal
board. The ground wire should be connected before other
connections are made. The ground wire of model as
below.
knockout here
Side W
all
Back Wall
Threaded
Mounting
Holes(4)
E
G
F
H
WIRING INSTRUCTIONS
NOTE:
Mounting rods not included. Mounting rods need to contain a 5/16”-18 thread size and must be a minimum of 7.5” long.
1
.
Remove the four bolts from the threaded holes on the back of the heater.
2. Install four threaded mounting rods (not included) in the threaded holes of the heater and secure in place using lock nuts.
3. Securely attach the four mounting rods to the ceiling.
Refer to Table 1 for wall and ceiling clearances and Table 2 for mounting rod spacing.
Ceiling
Back W
all
Mounting
Rod(4) -
not
included
Lock Nut
Access Door
Clearance Equal to Depth of Heater to
Permit Full Opening of The Access Door
Threaded Mounting Holes(4)
for Vertical discharge
Figure 2 - Vertical Discharge Mounting and Spacing
VERTICAL DISCHARGE
Threaded Mounting Holes(4)
for Horizontal discharge
Ceiling
Back W
all
Mounting
Rod(4) -
not
included
Lock Nut
Unit Heater
7” Min. Clearance to Floor
Back Wall
Side W
all
Threaded Mounting
Holes(4)
B
A
D
C
Figure 1 - Horizontal Discharge Mounting and Spacing
Model
Grounding wire
AWG#
246103
14
246104
14
246132
8
246133
6
246134
12
246725
14
246727
10
Vertical or Horizontal Downflow Unit Heater
6. The power terminal board is equipped with box terminals
sized to accept the correct size power supply wire. Wire
rated at 600V and 194°F is satisfactory for the heater
branch circuit. Copper wire is satisfactory for connection
to the heater power terminal board box terminal.
