WaterFurnace Envisio Series Console - Manual (Page 37)

37
ENVISION CONSOLE - 50 HZ INSTALLATION MANUAL
Unit Startup
Electrical Disconnect
Field installed on the optional chassis back plate, the
console disconnect provides a permanent electrical
connection to the main electrical supply branch. Wiring
between the disconnect and the unit chassis is field
supplied and allows the electrical power source to the
chassis to be interrupted for unit servicing.
Non-Fused
Constructed of heavy gauge galvanized steel, the
rocker style disconnect switch provides reliable
electrical control. Wiring pigtails, using 12-gauge wires,
are factory installed to simplify field wiring.
Fused
Similar in construction to the non-fused electrical
disconnect. The fused disconnect is available in
five models with equipment rated fuses to provide
additional circuit protection. The fuses are panel
mounted to allow easy inspection and removal without
removing the cover on the disconnect.
CFD-10 - 10 amp rated fuse
CFD-12 - 12 amp rated fuse
CFD-15 - 15 amp rated fuse
CFD-20 - 20 amp rated fuse
CFD-25 - 25 amp rated fuse
Motorized Outside Air Damper
A field installed motorized outside air damper is available
to allow the introduction of fresh air into the conditioned
space through an outside vent. The damper motor is
powered by 24 volts with a spring-close design in the
event of a power failure. The damper blade and housing are
constructed of aluminum for corrosion resistance and the
blade includes a neoprene gasket to prevent air infiltration
during off cycles. The damper assembly is installed on the
optional chassis back plate and a two-wire low voltage
connection simplifies wiring. A concealed, chassis mounted
rocker switch allows the damper to be disabled
Hydronic Loop Controller for
Boiler/Tower Installations
The hydronic loop controller is a microprocessor based
control panel for control of water loop heat rejector
(tower), heat supplier (boiler), and/or water well pumps
and circulation pumps. Includes audible and visual alarms,
temperature indication, and add-on options of low switches,
remote alarm sensor wells and pump alternator.