Quantech
125
Section 6: Commissioning
Form QTC3-NM1
Issue date: 12/19/2023
6
a. High voltage .........................................................
b. Low voltage .........................................................
c. Check the tightness of the power wiring inside
the power panel on both sides of the motor
contactors and overloads ....................................
d. Check that the BAS control is wired correctly
and operational ....................................................
10. Check the fuses in the main and control circuits to
ensure they are the correct size, and verify that the
overload setting corresponds with RLA and FLA
values in electrical tables ........................................
11. Ensure that the 120 VAC, or 110 VAC for 50 Hz units,
control power to TB1 has 15 A minimum capacity .......
12. Check that all water temperature sensors are in-
serted completely into their respective wells and
are coated with heat conductive compound .............
13. Check that the evaporator TXV bulbs are strapped
onto the suction lines at four or eight o'clock positions
or suction temperature sensors if EEVs are installed
14. Check that all sides of the unit have the appropriate
amount of space for air ventilation. Refer to QTC3-
ICOM6, Section 4: Installation .................................
15. Check that the cabinet edge clears the insulation of
the cable at the power entry to avoid slicing the cable
Compressor heater
Power on 24 hours before starting up
Apply 120 VAC and verify its value between terminals
5 and 2 of XTBC2. The voltage should be 120 VAC
(110 VAC for 50 Hz units) plus or minus 10%. ..............
Note: Power must be applied 24 hours before start-up. Each
heater should draw approximately 0.5 A to 1 A.
Pre-startup
Unit checks: no power
Turn o the customer power to the unit and complete the
following checks:
1. Ensure that chiller is installed in an outdoor location
and that all safety and service clearances are met ..
2. Inspect the unit for shipping or installation
damage ....................................................................
3. Ensure that all piping has been completed ..............
4. Visually check for refrigerant piping leaks ................
5. If available, open the suction line ball valve, dis-
charge line ball valve, and liquid line valve for each
system ......................................................................
6. At shutdown, check that the oil level is between the
bottom and middle of the oil equalizing sight glass ..
7. Check the water pumps:
a. Check and adjust the water pump ow rate and
pressure drop across the cooler. Refer to
QTC3-ICOM6, Section 8: Technical Data,
Operating Limitations . .........................................
b. Ensure the ow switch is in place, wired cor-
rectly, and operational .........................................
c. Ensure the chilled water pumps are operational .
d. Ensure the water system is lled with water ........
e. Ensure all air is purged from the water system ...
Note: Purge any air found in the water system
before starting up the chiller. Excessive ow may
cause catastrophic damage to the heat exchanger.
8. Check that the control panel is free of foreign
material, for example, wires and metal chips ...........
9. Check that all power is wired to the chiller and meets
the following NEC and local codes.
Installation Checklist
QTC3
Supersedes QTC3-CL1 (820)
Form QTC3-CL1 (1123)
Complete the following checks in accordance with the relevant installation instructions:
Customer: ______________________________________
Address: _______________________________________
Phone: _________________________________________
Telephone number:
_____________________________
Order number:
____________________________
Contract number:
_______________________________
Job name: ______________________________________
Location: _______________________________________
Customer order number: __________________________
Chiller model number: ____________________________
The work, as checked below, is in process and will be completed by: _____________ / ____________ / ____________
Unit serial number: ______________________________
Month Day Year
VSD software version: ____________________________ Controls software version: _______________________
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