Specifications

@ Three-way valve (mixed-phase) @ Flare nut
@ Needle valve @ Liquid line (small diameter)
@ Valve cap @ Mixed-phase line (large diameter)
@ Valve needle @ Indoor unit
@ Allen (hex. head) wrench @ Outdoor unit
@ Two-way valve (liquid) @ Vacuum pump
Fig. 15 -- Air Purging
Step 4 -- Make Electrical Connections
Unit cabinet must have an uninterrupted, unbroken electri-
cal mound to minilnize 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 com-
partment, or conduit approved for electrical mound when
installed in accordance with NEC, and local electrical
codes. Failure to tbtlow this warning could result in the
installer being liable for the personal injury of others.
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 opera-
tion would invalidate any applicable Carrier warranty.
Before performing seiwice or maintenance, be sure main
power switch is turned OFF and indoor blower and outdoor
tan have stopped. Failure to do so may result in electrical
shock or injury tiom rotating tan blades.
POWER WIRING (Fig. 16-19) d Unit is thctory wired for
voltage shown on nmneptate. Provide adequate, fused discon-
nect switch within sight of unit, readily accessible, but out of
rea& of children. Provision tbr locking the switch open (oil) is
advisable to prevent power fiom being turned on while unit is
being seaTiced. Disconnect switch, fuses, and field wiring must
comply with the NEC and local code requirelnents. Use copper
wire only between the disconnect switch and unit. Use mini-
mum 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 diagam and in Fig. 16-19 and Table 5.
Unit must be grouMed.