Trane IntelliPak CG-SVX02B-EN, Installation & Operation Manual

Page: 49 / 64

49
System Start-Up
Verifying Proper Fan Rotation
1. Close the main power disconnect switch or circuit protec-
tor switch that provides the supply power to the unit’s ter-
minal block 1TB1 or the unit mounted disconnect switch
1S14.
2. Open the Human Interface access door, located in the
unit control panel, and press the SERVICE MODE key to
display the first service screen. Refer to the latest edition
of the CG-SVP manual for the SERVICE TEST screens
and programming instructions.
3. Use the Human Interface to program the condenser fans
for operation by scrolling through the displays. All of the
condenser fans can be programmed to be “On”, if de-
sired. Verify proper fan rotation for VFD’s with bypass.
Refer to Figure 15 for the condenser fan locations and
designations.
4. Once the configuration for the Fans is complete, press
the NEXT key until the LCD displays the “Start test in
__Sec.” screen. Press the
+ key to designate the delay
before the test is to start. This service test will begin after
the TEST START key is pressed and the delay desig-
nated in this step has elapsed. Press the ENTER key to
confirm this choice.
WARNING
Rotating Components!
During installation, testing, servicing and troubleshoot-
ing of this product it may be necessary to measure the
speed of rotating components. Have a qualified or li-
censed service individual who has been properly
trained in handling exposed rotating components, per-
form these tasks. Failure to follow all safety precau-
tions when exposed to rotating components could re-
sult in death or serious injury.
5. Press the TEST START key to start the test. Remember
that the delay designated in step 4 must elapse before
the fans will begin to operate.
6. Check the supply fan and the exhaust fans (if equipped)
for proper rotation. The direction of rotation is indicated
by an arrow on the fan housings. Check the condenser
fans for clockwise rotation when viewed from the top.
If all of the fans are rotating backwards;
a. Press the STOP key at the Human Interface Module
in the unit control panel to stop the fan operation.
b. Open the field supplied disconnect switch upstream
of the unit. Lock the disconnect switch in the open
position while working at the unit.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote discon-
nects before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be inadvert-
ently energized. Failure to disconnect power before ser-
vicing could result in death or serious injury.
c. Interchange any two of the field connected main
power wires at the unit terminal block 1TB1 or the
factory mounted disconnect switch 1S14.
Note: Interchanging “Load” side power wires at the
fan contactors will only affect the individual fan
rotation. Ensure that the voltage phase sequence at
the main terminal block 1TB1 or the factory
mounted disconnect switch 1S14 is ABC as
outlined in the “Electrical Phasing” section.
If some of the fans are rotating backwards;
a. Press the STOP key at the Human Interface Module
in the unit control panel to stop the fan operation.
b. Open the field supplied disconnect switch upstream
of the unit. Lock the disconnect switch in the open
position while working at the unit. As indicated by
warning on previous page.
c. Interchange any two of the fan motor leads at the
contactor for each fan that is rotating backwards.
Compressor Start-Up
1. Ensure that the main power disconnect switch and the
control power disconnect switch for the “System Solution
Pump” is “On”.
2. Before closing the main power disconnect switch for the
unit, ensure that the compressor discharge service valve
and the liquid line service valve for each circuit is back
seated.
CAUTION
Compressor Damage!
Do not allow liquid refrigerant to enter the suction line.
Excessive liquid accumulation in the liquid lines may
result in compressor damage.
Compressor service valves must be fully opened before
start-up (suction, discharge, liquid line, and oil line).
Failure to fully open valves prior to start-up may cause com-
pressor failure due to lack of refrigerant and/or oil flow.
3. Remove the protective plastic coverings that shipped
over the compressors.
4. Check the compressor oil levels. The oil level in each
manifolded set of compressor sight glasses should be
equally 1/2 to 3/4 full when they are “Off”.
5. Check the condenser coils. They should be clean and the
fins should be straight. Straighten any bent coil fins with
an appropriate sized fin comb.
6. Turn the main power disconnect switch or circuit protec-
tor switch that provides the supply power to the unit’s ter-
minal block 1TB1 or the unit mounted disconnect switch
1S14 to the “On” position.
7. Turn the 24 volt control circuit switch 1S70 to the “On”
position.