York YMC2 Installation And Assembly

JOHNSON CONTROLS
48
FORM 160.84-N1
ISSUE DATE: 11/22/2016
SECTION 4 - REASSEMBLY
Form 9 and Form 10 Reassembly
1. Assemble vibration isolators to unit. Refer Sec-
tion 3 - Installation on page 31.
2. Level shells in both directions. The longitudi-
nal alignment of the shell should be checked by
placing a level on the top of the shell, next to the
discharge connection. The transverse alignment
should be checked by placing a level on the tops
of both end sheets refer to refer Section 3 - Instal-
lation on page 31. 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 specied
torque values provided in Table 14 on page 43.
4. Lift the Variable Speed Drive in according to the
rigging section and remove all packing material,
for Variable Speed Drive. 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 cool-
ing 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 prior to
starting the unit or a VSD over temperature fault
may occur.
5. Re-connect motor power leads in the Variable
Speed Drive to T1, T2, and T3 terminals and
torque to 18-20 Ft-lbs. per the labels in the VSD.
6. Re-connect motor winding thermistor shielded
cable conductors in the Variable Speed Drive at
TB4 (refer to YMC
2
Unit Wiring and Field Con-
trol Modications (Form 160.84-PW2).
7. Re-connect all unit wiring and harnesses (refer to
YMC
2
Unit Wiring and Field Control Modica-
tions (Form 160.84-PW2).
8. For Form 9 shipment remove Nitrogen and charge
unit with Refrigerant (refer Form 160.84-OM1).
9. All Units – Complete installation and nally
level the unit. Refer Section 3 - Installation on
page 31.

York YMC2 Specifications

General

Brand	York
Model	YMC2
Category	Chiller
Language	English