
18. Verify that the VSD coolant propylene glycol
(PG) percentage is 44%.
19. Verify that the chilled liquid loop PG or EG
percentage corresponds with the chiller
order. If needed, contact the chiller sales
team for verification.
20. If the unit is equipped with SC-EQ, set up
according to 450.50-N1, Section 2.
21. Check the tightness of the power supply
connection to the waterbox heater kit, if
applicable. Make sure the waterproofing
level of connection can meet IP65.
22. Ensure that all water temperature sensors
are inserted completely in their respective
wells and are coated with heat conductive
compound.
B. Electrical
Review the appropriate manuals, 160.88-PW1, 160.88-
PW2, and 160.88-M3 to complete the following
actions:
WARNING
Correct electrical lockout and tagout procedures
must be followed.
1. Ensure that the incoming power wiring is
not aluminum. Copper wire must be used.
2. All Main power wiring connections must be
made in accordance with Form 160.88-PW1.
3. If the power source is transferable from
utility to generator and from generator to
utility, ensure there is a 10 second delay
between the transfers of power sources.
4. Visually inspect the power wiring and
control wiring. Wiring must meet NEC, CE,
and local codes.
5. Ensure that the field wiring matches the
three-phase power requirements of the
chiller. Refer to the chiller nameplate.
6. If the power factor correction capacitors
are applied between the power source and
the VSD, they must be removed or turned
off.
7. Ensure that the power supply connection
to waterbox heater kit is correctly made, if
applicable.
C. Single point power panel
1. Ensure that wiring is completed from the
single point power supply to the HYP drive.
2. Ensure that there are no penetrations in to
the drive enclosure other than the factory
provided connections.
Note: Do not cut power wire to length or con-
nect power wire to the single point power panel
without supervision from a Johnson Controls
representative.
3. Measure and cut power wire to length
outside of the power panel enclosure. Use a
tool designed to cut large diameter power
wire.
4. Ensure that the conduit connections are
made at the single point power panel as
outlined in 160.88-PW1. No other enclosure
penetrations are allowed.
5. Inspect power feed terminations torque
marks to the drive circuit breaker.
6. Ensure that wiring to the single point
power panel is complete.
7. Verify that the circuit breaker settings
match the settings shown in the
OptiSpeed™ VSD service manual. Refer to
160.88-M3.
8. Ensure that external control wiring is
completed in accordance with 160.88-PW2 .
D. Chiller power-up
WARNING
You are about to turn on the power of this
machine. Safety is number one. Only qualified
individuals are permitted to service this product.
The qualified individual furthermore must be
knowledgeable of, and adhere to, all safe work
practices as required by NEC, OSHA, and NFPA
70E. Use correct personal protection equipment
(PPE) where and when required.
CAUTION
Do not apply power to the chiller unless the
chilled water system is filled with water or glycol.
If the chiller is equipped with the -20°F option,
applying power to an empty chilled liquid system
will cause the evaporator immersion heaters to
fail.
1. Apply three-phase power to the chiller.
2. Check that the control panel display is
illuminated.
Model YVAM Start-up Checklist2