Disassembly And Assembly Of Exv Motor - Carrier AquaSnap 30MPA Series Controls, Start-Up, Operation, Service, And Troubleshooting

6. Manually depress the valve piston before installing the
motor assembly. This will allow for the lead screw to en-
gage the piston as the motor is installed.
7. Lightly oil the threads and gasket on the new motor.
Carefully seat the motor on the valve body. Using a
wrench and back-up wrench as described above, tighten
the motor assembly as follows: Tighten the motor to
CLOSED
OPEN
NOTE: Open valve in Quick Test sub-mode before disassembling.
CLOSED
OPEN
DISASSEMBLY
ADAPTER
ASSEMBLY
NOTES:
1. Push down on valve piston to close valve before assembling.
2. After valve is assembled close valve in Quick Test sub-mode or
cycle power before opening service valve.
Fig. 28 — Disassembly and Assembly of EXV Motor
(30MP050-071)
36 ft-lb (50 N-m) and then tighten an additional 30 de-
grees as indicated in Fig. 28.
8. After the motor is tightened, the cable should be replaced
on the valve. Care should be taken to ensure engagement
of the alignment key. Pressurize the system and check for
leaks.
9. Reapply control power and test the operation using Ser-
vice Test operation listed above.
50Nm (36 ft-lb)+ 30°
EF05BD331 NV 36mm
43
1
27mm / 1 / ''
16
1
27mm / 1 / ''
16
GASKET
a30-5977