35
5. Check all terminal connections for proper installation.
Insulate Motor Terminals and Lead Wire Ends
Locate heat shrink tubing (RCD P/N LF33MM114) over
power connections so that they are completely covered and
tubing is against motor housing. Shrink into position. Slide
foam tubing (3 in. inner diameter closed cell vinyl, neoprene,
or nitrile foam) part way over the heat shrink tubing. Apply
adhesive for closed cell foam insulation to motor side end of
the foam tubing and push tubing the rest of the way over the
terminal and against the sheet insulation on the motor side.
Secure the opposite end of the foam tubing with a wire tie as
shown in Fig. 36 and 37.
Alternate Insulation for Motor Terminals and Lead Wire Ends
Insulate compressor motor terminals, lead wire ends, and
electrical wires to prevent moisture condensation and electri-
cal arcing. Obtain Carrier approved insulation material from
RCD (Replacement Components Division) consisting of 3
rolls of insulation putty and one roll of vinyl tape.
a. Insulate each terminal by wrapping with one layer of
insulation putty (RCD P/N 19EA411-1102).
b. Overwrap putty with 4 layers of vinyl tape.
6. Orient PE/ground lug as shown in Fig. 38. Assemble inter-
nal/external tooth lock washer between the terminal box
frame and the PE/ground cable. Torque PE/ground lug nut
to 55 to 65 ft-lb (75 to 89 N-m). See section H-H in Fig. 38
for PE/ground cable routing.
7. Center terminal enclosure frame over terminal box frame
assembly so the space between the frames is equal within
3/16-in. (5 mm) at the top and bottom. Use the slots in the ter-
minal enclosure frame. Adjust spacing between the sides of
the terminal enclosure frame and terminal box frame assem-
blies by moving the control center to the left or right.
8. Install O-rings on VFD refrigerant connections using silicone
grease. Tighten connector using 2 wrenches to 27 to 33 ft-lb
(37 to 45 N-m). See Detail A in Fig. 39. (Does not apply to
units with P compressor.)
9. Evacuate all piping between the VFD and the VFD isola-
tion valves after assembly and tightening of VFD fittings.
Dehydration/evacuation is complete to equalize VFD pip-
ing pressure with machine pressure if machine is charged
with refrigerant (Fig. 39). (Does not apply to units with
P compressor.)
Fig. 38 — Motor Ground Cable
Fig. 39 — VFD Refrigerant Connectors
IMPORTANT: Do not insulate terminals until wiring
arrangement has been checked and approved by Carrier
start-up personnel. Motor terminals must be insulated in
acceptance with national and local electrical codes.
a23-1578
a23-1578
VFD COOLING
LINE O-RING
FACE SEAL
COUPLINGS
DETAIL A
SEE
DETAIL A
FILTER DRIER
ISOLATION VALVE
VFD ISOLATION
VALVES (2)
FILTER DRIER
ISOLATION VALVE
a23-1579
NOTE: Does not apply to VFD supplied
with units with P compressors.
a23-1579
Содержание AquaEdge 23XRV
Страница 53: ...53 Fig 58 23XRV Controls Schematic ...
Страница 54: ...54 Fig 58 23XRV Controls Schematic cont FROM 2000767952 SHEET 3 ...
Страница 55: ...55 Fig 58 23XRV Controls Schematic cont ...
Страница 56: ...56 Fig 59 23XRV Controls Schematic Rockwell Standard Tier VFD Shown ...
Страница 57: ...57 Fig 60 23XRV LF2 VFD Wiring Diagram ...
Страница 65: ...65 Fig 70 23XRV Insulation Area Units with P Compressor ...
