Step 4 - Make Electrical Connections - Bryant 619ENF Installation, Start-Up And Service Instructions Manual

IV. STEP 4 — MAKE ELECTRICAL CONNECTIONS
WARNING: Unit cabinet must have an uninter-
rupted, unbroken electrical ground to minimize the
possibility of personal injury if an electrical fault
should occur. This ground may consist of electrical
wire connected to unit ground lug in control compart-
ment, or conduit approved for electrical ground when
installed in accordance with NEC, and local electrical
codes. Failure to follow this warning could result in the
installer being liable for the personal injury of others.
CAUTION: Unit failure as a result of operation on
improper line voltage or excessive phase imbalance
constitutes abuse and may cause damage to electrical
components. Such operation would invalidate any
applicable Bryant warranty.
WARNING: Before performing service or mainte-
nance, be sure main power switch is turned OFF and
indoor blower and outdoor fan have stopped. Failure to
do so may result in electrical shock or injury from
rotating fan blades.
Three-way valve (mixed-phase)
Needle valve
Valve cap
Valve needle
Allen (hex. head) wrench
Two-way valve (liquid)
Fig. 15 — Air Purging
A. Power Wiring (Fig. 16-19)
Unit is factory wired for voltage shown on nameplate. Pro-
vide adequate, fused disconnect switch within sight from
unit, readily accessible, but out of reach of children. Provi-
sion for locking the switch open (off) is advisable to prevent
power from being turned on while unit is being serviced. Dis-
connect switch, fuses, and field wiring must comply with the
NEC and local code requirements. Use copper wire only
between the disconnect switch and unit. Use minimum 60 C
wire for the field power connection.
Open the fan coil control box panel and connect the indoor
and outdoor units. Connect the wires through the terminals
as shown on the unit label diagram and in Fig. 16-19 and
Table 5. Unit must be grounded.
—8—
Flare nut
Liquid line (small diameter)
Mixed-phase line (large diameter)
Indoor unit
Outdoor unit
Vacuum pump