Operating instructions

14
Control cabinet installation and wiring.
Installation
Installation:
Control cabinet installation and wiring
The VAPOR-LOGIC
®
3
control board is shipped
mounted with all internal wiring completed within a
control cabinet. All software has been custom
programmed into your VAPOR-LOGIC
3
system
according to the original order requirements.
Important control cabinet installation points:
• All humidifier power wiring is represented on
the humidifier wiring diagram located with an
installation guide on the inside of the control
cabinet door. Return all instructions to the
control cabinet after installation.
• Refer also to the VAPOR-LOGIC
3
control
board drawing on Page 3 of this manual for
detail of the board and connection points.
• Pick a location within sight of the humidifier
tank that will allow for easy access to the
control cabinet and internal electrical
components.
IMPORTANT: Locate the control cabinet
so that wire lengths are 50 feet or less to the
humidifier.
• Mount control cabinet using the mounting tabs.
• Always wire the VAPOR-LOGIC
3
control
board per local and national electric codes.
• VAPOR-LOGIC
3
is powered by a low voltage
Class 2 control transformer. The transformer
provides a 24 VAC supply, and is protected by
an integral manual reset circuit breaker.
• Follow field wire torque requirements shown on
the humidifier wiring diagram when connecting
the power and control wiring inside the
humidifier control cabinet.
• Use only a 1/8" straight blade screwdriver on
VAPOR-LOGIC
3
control board terminal blocks.
• Use a single 18-gauge pre-tinned wire in each
terminal at the VAPOR-LOGIC
3
terminal block.
Torque to 5 inch-pounds.
• When terminating multiple wires to the
VAPOR-LOGIC
3
control board terminal block,
secure the multiple wires and one
additional wire with an appropriately sized wire
nut. Use the single additional wire's opposite
end to connect to the VAPOR-LOGIC
3
terminal
block.
• Never run the control system wires bundled
with, or in the same conduit as, power wires.