tor starter. Verify correct operation of flow proving circuit.
Evaporator water flow balanced.
PSID design GPM design
PSID actual GPM actual
7. Electrical and Controls
a. Motor Starter Panel
All terminals tightened.
Wiring free from abrasion, kinks, and sharp corners. Contactors and relays have freedom of move-
ment.
All contacts are free of corrosion or dirt. Panel is free of dust, debris etc.
Check the ratio of the current transformers. Record the part numbers on the start-up log.
Use only twisted shielded pair for the IPC circuit between the starter and the control panel on remote
starters. Recommended wire is Belden 8760, 18 AWG. Polarity is critical.
The low voltage IPC link ( 30 volts) must be in separate conduit from the 115-volt wiring.
IPC link routing within the starter panel must stay a minimum of 6 inches from higher voltages.
Remote starter to control panel connections are complete and comply with Trane requirements. Verify
oil pump interlock circuit to 1A7J2-4 and J2-2.
Check the correctness of the power connections from the starter to the motor.
Check the wiring to the starter for size, voltage and correct phase rotation (A-L1, B-L2, & C-L3)
Check the equal phase representation in each power-wiring conduit.
b. Control Panel
All terminals tightened.
Wiring free from abrasion, kinks, and sharp corners.
Low voltage wires are isolated from high voltage wires.
Panel is free of dust, debris etc.
“Power Up” the control panel. (Non-AFD Starters)
1. Starter disconnect locked open.
2. Fuse 2F4 must be removed from the starter.
3. Connect auxiliary 115VAC-power cord to Terminals 1X1-5(L1) and 1X1-17(L2) in the starter panel.
MAKE SURE OF THE POLARITY. THE ‘HOT’ SIDE MUST BE CONNECTED TO TERMINAL 1X1-5(L1) AND
THE ‘NEUTRAL’ SIDE TO 1X1-17(L2).
4. Plug in cord to 115VAC-power source. Control panel is now energized.
Record the configuration and setpoints of the UC800 control system, using Service Tool (Tracer TU).
Check “on-line” to be sure your Service Tool is current.
Using Tracer TU equipment utility configuration, check the UC800 firmware version and upgrade if
available.
Using the unit nameplate data and the order specification, double check and reset, if required, the
settings of RLA & CTMS, using Service Tool.
If Evaporator and condenser water pumps are controlled by the control panel, use the AdaptiView
manual override menu to manually start and test the control of the pumps.
Check the setting of the oil pressure-regulating valve.
1. Use the AdaptiView manual override of the control panel to manually start the oil pump.
2. Proceed to the Compressor Report menu and observe the Differential Oil Pressure
3. Adjust the oil pressure-regulating valve to maintain 18 to 22 psid. The oil pressure- regulating valve
may require adjustment as the unit is started.
4. This procedure also checks to ensure correct sensing of oil pressure. The Oil Pressure Cutout setting
is adjustable within via the UC800 Service Tool.
80 TCVHE-SVX04D-EN
Forms
RELEASED 10/Mar/2020 06:59:20 GMT
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