Quantech QWC4, Installation Operation & Maintenance, Page: 31 / 156

QUANTECH
31
SECTION 3 - HANDLING, STORAGE, INSTALLATION, AND REASSEMBLY
FORM QWC4-NM1 (221)
ISSUE DATE: 02/28/2021
3
FORM 7 REASSEMBLY
Complete the following steps to reassemble the chiller:
1. Determine the final location. Verify that the final
location meets all of the minimum required clear-
ances. See
Figure 8 on page 28.
2. Rig the evaporator and place in the final location
(see Figure 11 on page 33 ).
3. Rig the condenser, place it next to the evaporator,
and bolt the condenser and evaporator together
(see Figure 12 on page 34 ).
4. Level the evaporator and condenser
(see Figure 12 on page 34 ).
5. Install the isolator pads or optional spring isola-
tors to the condenser and evaporator end sheets
(see
on page 36
).
6. Install the heat exchanger piping
(see Figure 15 on page 37 ).
7. Install the liquid injection and oil return piping
(see Figure 16 on page 38 ).
8. Install the driveline (compressor/motor) assembly
(see Figure 18 on page 39 ).
9. Install the economizer piping to the compressor
(see page 39 ).
10. Mount the oil separator
(see Figure 18 on page 36 ).
11. Install the oil separator discharge muffler piping
(see
Figure 18 on page 36
). (Only required with
Isolation Valve)
12. Install compressor oil piping
(see Figure 20 on page 42 ).
13. Install oil supply piping
(see Figure 21 on page 42 ).
14. Mount the VSD (see Figure 22 on page 44 ).
15. Connect the VSD cooling lines
(see Figure 24 on page 45 ).
16. Mount and connect the Control Panel
(see
Figure 23 on page 45).
Additional Instructions for Form 7
Reassembly
1. When installing the refrigerant piping, see Piping
Joint Assembly on page 46 .
2. For wiring connections, refer to
Field Connec-
tions and Control Wiring for QWC4 Chiller
(QWC4-PW2) .
3. For torque procedure and specifications, see
Table
4 on page 32
.
4. Evacuate and charge the unit with refrigerant, see
Refrigerant Charging on page 137 .
5. Pressure leak test. Remain below the relief valve
lift pressure indicated on the valve tags, see
Checking System for Leaks on page 138 .
6. Charge the oil separator with the proper type and
quantity of Quantech oil, see Adding Compressor
Oil on page 134 .
7. Remove shipping antifreeze from VSD cooling
system and replace with coolant, see
Checking
VSD Coolant Level on page 144.
TABLE 3 - EVAPORATOR AND CONDENSER
WEIGHT, LB (KG)
SHELL
CODE
EVAPORATOR
(PIN 5,6)
CONDENSER
(PIN 7,8)
BB 2258/1024 1526 (692)
BC 2313/1049 1578 (716)
BD 2800/1270 1795 (814)
CB 2542/1153 1772 (804)
CC 2610/1184 1836 (833)
CD 2683/1217 1887 (856)
DB 2848/1292 2041 (926)
DC 2930/1329 2121 (926)
DD 3016/1368 2180 (989)
NOTE: The component weights listed in
Table 3 on page 31
through 41 are approximate, and could vary from unit to unit.
Waterbox weights are NOT included.