Physical Data - Carrier AquaEdge 23XRV Start-Up, Operation And Maintenance Instructions Manual

Check EXV Motor Windings Resistance — To check the
resistance of the EXV motor windings, remove the EXV plug
at J2A (economizer EXV) or J2B (condenser EXV) and check
resistance. The resistance should be 52 ohms (± 10%). See
Fig. 68.
COIL A
COIL A = 52 OHMS
COIL B = 52 OHMS
Fig. 68 — EXV Motor Windings Resistance
Check Condenser Level Sensor Resistance — The level sen-
sor provides a voltage between white (output) and black
(ground) wires proportional to red (+) and black (ground) volt-
age. If the level sensor is suspected of misreading, check the re-
sistance between red (+) and black (ground) wries. It should
measure approximately 1800 ohms. Figure 69 shows condens-
er liquid level sensor components.
Tables 27-40 and Fig. 70-81 provide
Physical Data —
additional information on component weights, physical and
electrical data, and wiring schematics for the operator's conve-
nience during troubleshooting.
CAUTION
Do not attempt to disconnect flanges while the machine is
under pressure. Failure to relieve pressure can result in per-
sonal injury or damage to the unit.
Fig. 67 — EXV Assembly
COIL B
a23-1725
125
36 ft-lb (50 Nm) + 30˚
1 1 / in. (27 mm)
16
Before rigging the compressor, disconnect all wires enter-
ing the power panel to avoid damage to the panel.
WIRE, PVC
12 TO 14 in. EXT
1
LO = 4 in. ± / in.
16
13 1
2 / in. ± / in.
16 8
(INDICATION= 2 1 / in.)
4
Fig. 69 — Condenser Liquid Level Sensor
a23-1724
CAUTION
22 AWG
LABEL
½ in. NPT CONDUIT
O-RING
2 5 / in. - 12 UNF 2A
16
FLOAT
GRIP RING
a23-1726
(0.31 in. DIAM.)
(1.02 in. DIAM.)