Form 9 And Form 10 Reassembly - York YK Series Installation Manual

Figure 4: Rigging – compressor/motor assembly
Note: Rig the driveline into place on the chiller, supporting the compressor with two lifting
lugs and the motor with either, one, two, or four legs depending on motor design.

Form 9 and Form 10 reassembly

Assemble vibration isolators to unit. Refer to YK Mod H Installation Manual (Form 160.76-N1).
1.
2. Level shells in both directions. Check the longitudinal alignment of the shell by placing a level
on the top of the shell, next to the discharge connection. Check the transverse alignment by
placing a level on the tops of both end sheets. Refer to YK Mod H Installation Manual (Form
160.76-N1) for additional instructions to level the unit. After shell is leveled, wedge and shim
each corner of the shell to solidly support it while assembling the other parts.
3. Tighten all hardware installed to the specified torque.
4. Lift the Variable Speed Drive and remove all packing material. Carefully lower the Variable
Speed Drive on to the supports on the condenser. Fasten the Variable Speed Drive to the
condenser and to the motor terminal box duct. Make all necessary connections for the VSD
cooling loop to be complete.
The Variable Speed Drive will be shipped with glycol in the cooling system. The Variable
Speed Drive coolant must be changed to the inhibitor provided with the shipped loose items
before starting the unit.
5. Reconnect the motor power leads in the Variable Speed Drive to the T1, T2, and T3 terminals
and torque to 18 lb·ft to 20 lb·ft (24 N•m to 27 N•m) as indicated by the labels in the VSD.
6. Reconnect motor winding thermistor shielded cable conductors in the Variable Speed Drive at
TB4. Refer to Unit Wiring and Field Control Modifications (Form 160.76-PW2).
Reconnect all unit wiring and harnesses. Refer to Unit Wiring and Field Control Modifications
7.
(Form 160.76-PW2).
8. Pressure test the unit.
Model YK Chillers (Style H) Field Reassembly for Form 3, 7, 9, and 10 Shipment 15