Quantech QTC3040T, Installation Operation & Maintenance

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QUANTECH
FORM QTC3-NM1
ISSUE DATE 08/03/2022
SECTION 6 – COMMISSIONING
6
c. Check the tightness of the power wiring inside
the power panel on both sides of the motor contac-
tors and overloads. ............................................
d. Check that the BAS control is wired correctly
and is operational ..............................................
9. Check for correct size fuses in main and control
circuits, and verify that the overload setting cor-
responds with RLA and FLA values in electrical
tables (refer to
Form QTC3-NM1
) ..........................
10. Ensure that the 120 VAC (110 VAC for 50 Hz
units) Control Power to TB1 has 15 A minimum
capacity ...................................................................
11. Check that all water temperature sensors are
inserted completely into their respective wells and
are coated with heat conductive compound ............
12. Check that the evaporator TXV bulbs are
strapped onto the suction lines at 4 o'clock or 8
o'clock positions or suction temperature sensors if
EEVs are installed ...................................................
13. Check that all sides of the unit have the recom-
mended amount of space for air ventilation. Refer
to
Section 4 - Installation (Form QTC3-NM1)
.........
14. Check that the cabinet edge clears the insulation
of the cable at the power entry to avoid slicing the
cable .......................................................................
E. COMPRESSOR HEATER
(Power On - 24 Hours Before Start)
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.
D. PRE-STARTUP
Unit Checks (No Power)
Turn off the power to the unit and complete the
following checks.
1. Inspect the unit for shipping or installation
damage ...................................................................
2. Ensure that all piping has been completed ..............
3. Visually check for refrigerant piping leaks ................
4. If available, open the suction line ball valve, dis-
charge line ball valve, and liquid line valve for each
system .....................................................................
5. At shutdown, check that the oil level is between
the bottom and middle of the oil equalizing sight
glass. ..................................................................... ...
6. Are water pumps on?
a. Check and adjust the water pump flow rate and
pressure drop across the cooler. Refer to
Operat-
ing Limitations, Section 5 - Technical Data (Form
QTC3-NM1)
. .................................................
b. Is the flow switch in place, wired correctly, and
operational? ..................................................
c. Are the chilled water pumps operational? ....
d. Is the water system filled with water? ...........
e. Is all air purged from the water system? .......
NOTE: Any air found in the water system must be
purged before the chiller can start up. Excessive
flow may cause catastrophic damage to the heat
exchanger (evaporator).
7. Check that the control panel is free of foreign ma-
terial, for example, wires and metal chips ................
8. Check that all power is wired to the chiller and
meets the following NEC and local codes ................
a. High voltage. .................................................
b. Low voltage.. ................................................
The following work must be completed in accordance with installation instructions:
CUSTOMER: ____________________________________
ADDRESS: _____________________________________
PHONE: ________________________________________
TEL NO: _____________________ ORDER NO: __________________ CONTRACT NO: ______________
JOB NAME: ____________________________________
LOCATION: ____________________________________
CUSTOMER ORDER NO: _________________________
CHILLER MODEL NO : ____________________________
The work (as checked below) is in process and will be completed by: _____________ / ____________ /
___________
UNIT SERIAL NO : _______________________________
Month Day Year
Supersedes: QTC3-CL1 (1018)
EQUIPMENT PRE-STARTUP AND STARTUP CHECKLIST
MODEL QTC3
Form QTC3-CL1 (820)