Carrier AquaForce 30XV140-500 Installation Instructions Manual page 91

Fan VFD Wiring, 400H, 450M, and 500S (with Fan VFD
Option) — The fan cable for fan motors on module B is tied at
end of module A. Route the cable through the wiring rail simi-
lar to existing fan cables on module A. To get around the corner
posts, bring the cables out of the rail, around the corner posts,
and back into the rail. Use conduit included in the installation
kit, 30XV70001001, to cover the section of the wiring outside
of the rail. The kit is located in the control panel of module A
unit. The cables will be routed through the bottom of the B2
fan drive using the existing strain relief. See Fig. 30. Terminate
wires on the motor wiring terminal board inside drive. The ter-
minal board is color-coded to match fan motor wires. Torque
lugs to 16 in.-lbs. The drive cover is removed with a T20 bit.
LIQUID CONNECTION TUBES
GAS CONNECTION TUBES
Fig. 28 — Brazing Gas and Liquid Lines
Fig. 29 — Automated Discharge Ball Valve
Apply wet rag to all ball valves to
prevent damage. Remove Schrader
valve core and fusible plug prior
to brazing.
NOTE: Use a barrier or remove the
cross rail before brazing to prevent
damage to the cross rail.
Trim this tube if required
for fitup.
Fan VFD Wiring, 450H, 500M —To connect power to fan
drive B2, use the conduit tied to the end of the A module.
Route this conduit to drive B2. See Fig. 31. Connect to bottom
of drive and route wires to terminal block. Connect wires to L1,
L2, L3, and ground. Torque lugs to 16 in.-lbs. The drive cover
is removed with a T20 bit.
Fan Cable Wiring, 500S (without Fan VFD Option) — The
fan cable for fan motors on module B is tied at end of the mod-
ule A unit. Route through the wiring rail similar to existing fan
cables on module A. To get around the corner posts, bring the
cables out of the rail, around the corner posts, and back into the
rail. Use the conduit included in the split unit installation kit to
cover the section of wiring outside of the rail. The cables will
be routed to the fan wiring box. Route cables into fan wiring
box. See Fig. 32. Plug fan cables to matching plugs in box. The
plugs are labeled for identification.
91
AUTOMATED DISCHARGE
BALL VALVE