Mechanical Connections - Berner IDC12 Series Installation & Maintenance Instructions Manual

FIGURE 6 - Floor Mounting
A. Check the rating nameplate on the top of 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.
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.
D. Connect the power supply to the unit. Connect all supply
and control circuit wires according to wiring diagram
provided.
E. Re-install the Junction Box cover.
NOTE: For electric heated units provided with optional
remote thermostat: Mount and wire the thermostat
according to instructions and wiring diagram.
FIGURE 7 - Increased Stability for Vertical Mounting
FIGURE 9 - Tandem Mounting
VIII. MECHANICAL CONNECTIONS
A. ELECTRIC HEATED MODELS
The heater circuit may be controlled by a remote thermostat
or manually through the switch located on the discharge
side of the unit. Overheating protection is provided by auto
reset thermal cutouts built into the heater coil assembly (see
the wiring diagram).
B. STEAM OR HOT WATER HEATED MODELS
Piping should be done in accordance with local codes,
regulations and standard practices. Connect the building
system supply and return to the MNPT nipples on the
heating coil. See Figure 10.
FIGURE 8 - Tandem Mounting for Vertical Mounting
FIGURE 10 - Mechanical Connection - Steam/Hot Water
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