JOHNSON CONTROLS
41
FORM 160.81-NOM1
ISSUE DATE: 10/3/2020
2
SECTION 2 – CHILLER COMMISSIONING
OPTIVIEW CONTROL CENTER
Refer to
Operator's Manual (Form 160.81‑O1)
and
Service Manual (Form 160.81‑M1)
for more informa-
tion concerning the OptiView Control Center.
YR CHILLERS PRE-STARTUP CHECKLIST
Installation
Check all utility interconnections to the chiller:
water piping, electrical and control wiring to the
chiller.
Verify that the chiller is level.
Check the mounting spring isolators or vibration
isolators for equal loading.
Check the relief valve piping for excessive load
on the relief devices.
Form 2, Form 3, Form 7 and 8 Shipments
A Vacuum Dehydration Unit is required for all
field re-assembled YR Chillers; Form 3 and Form
7. In addition, Form 2 YR Chillers shipped with-
out refrigerant require a Vacuum Dehydration pro-
cedure prior to commissioning. Refer to
.
Evaporator and Condenser Flow Rates
Check for properly installed and clean strainers in
the water supply lines to the evaporator and con-
denser. Clean and properly installed water strain-
ers is a Johnson Controls warranty requirement.
CONDENSER
Low Temperature Brine Chillers
Verify the freeze point of the brine in the evapo-
rator. Use a hand-held optical refractometer or a
hydrometer.
Compressor
Make certain the incoming electrical power dis-
connect is in the open position.
MOTOR
Motor
Check the voltage supply to make certain it is the
same as the Motor Nameplate Data.
Refrigerant Leak Check
Thoroughly leak check the entire chiller for leaks
prior to starting. Make certain to include relief
valves. This may require removing field-installed
relief valve piping.
Compressor Oil
Check the compressor oil level. Oil should be vis-
ible in the lower sight glass on the side of the oil
separator. Refer to
in this manual.
Make certain that the oil heater has been ener-
gized at least 24 hours prior to starting the chiller.
Cooling Tower
Verify that the cooling tower is operational and
the fans and controls are ready for the chiller to
be started.
Water Treatment
Make certain the water treatment is in place and
operational.
Wiring
Check and verify all interconnecting wiring with
the wiring diagram.
Make certain all wire terminals are tight and plugs
are properly secured.
Capacity Control Block
Make certain the three service valves are back
seated.
