WaterFurnace Envisio Series Console - Manual (Page 15)

15
ENVISION CONSOLE - 50 HZ INSTALLATION MANUAL
Step 5: Provide Line Voltage Wiring
• Check unit data plate located on control side of chassis
for ampacity and fuse size.
• Remove electrical knockouts from chassis backplate.
• Run line voltage wiring through knockout and secure
wiring to backplate or disconnect.
Step 6: Chassis Installation
• Level and secure backplate to wall.
• Position the chassis against back plate. Drive (2) screws
through holes in lip of backplate into top flange of chassis.
Step 7: Final Electrical Connection
• Install flexible electrical conduit between the backplate or
electrical disconnect and the unit mounted junction box.
• Make final wiring connections in disconnect and junction
box, taking care to replace all covers when done. Wiring
must conform to NEC and/or all local codes. Refer to
Electrical Data.
NOTE: It is necessary to make final wiring connections
prior to securing unit chassis to back plate on right-hand
piping models with electrical disconnect.
Step 8: Final Water Connection
• For ease of installation and sound attenuation, high
pressure (recommended) flexible hoses with a swivel
fitting should be provided. Apply Teflon® tape or sealant
compound to threaded hose fittings.
• Combination shut-off/balancing valves should be installed
on both the supply and return water lines of the unit.
• Flow control valves should be installed on the water
discharge line.
• It is recommended that P/T ports be installed on the
supply and return water lines.
Step 9: Set Unit Controls
• Locate the “continuous fan/cycle fan” switch within the
electrical compartment of the chassis and set to desired
position. (Remote wall thermostat units do not use this
optional switch.)
• Optional Control Settings- Remote Thermostat - Run
low voltage wiring from unit to the desired thermostat
location. Mount and wire thermostat according to
manufacturer’s recommendations.
Motorized Outside Air Damper - Locate the “damper on/
damper off” damper switch within the electrical com-
partment of the chassis and set to desired position.
Step 10: Secure the Cabinet Cover
• Position and lower cabinet over unit chassis. Apply
pressure to the front of the cabinet to ensure that the
back lip of the cabinet hooks over the tabs provided on
the backplate.
• Secure cabinet to chassis with mounting screws provided.
Step 11: Perform Final Unit Check
• Measure the pressure drop across the water coil and
monitor water or air temperatures in both heating
and cooling modes. The measured values should fall
within the acceptable ranges shown in the Startup
Performance table.
Installation Steps cont.