Figure 22 - Reserved Customer Wiring Entry; Figure 23 - Water Box Heater Wiring Box - Quantech QTC40160 Installation Operation & Maintenance

Form QTC4-NM2
Issue date: 05/12/2023

Figure 22 - Reserved customer wiring entry

For QTC4 chillers, if the water box heater option is
available, the customer has to connect a 115 V/60 Hz or
220 V/50 Hz, single-phase power supply to the wiring
box of the water box heater. The wiring box protects
the water box of the evaporator from freezing under
low ambient. The customer needs to break the reserved
customer wiring entry, as shown in Figure 21, with the
wiring going through an appropriate 90° conduit. After
connecting the wires, water proofing measures need to
be taken to meet IP65.
24
6
A2
A2
2
2, 29, G
TO
JB1
325, 326, PE/G
ETH1
ETH2
325A, 326A, PE/G

Figure 23 - Water box heater wiring box

Quantech
324
WBHTR
14
12
22
4
5
3
1
8
11 A1
21
325,
29
325A
RESERVED FOR
CUSTOMER WIRING
ENTRY
LD28284
Failure to connect the power connection
to the water box heater wiring box, or to
meet IP65, voids warranty.
115VAC-1PH-60HZ
220VAC-1PH-50HZ
(CUSTOMER CONNECTION)
PE/G H
N
POLE BREAKER
PE/G
324 326, 326A
PE/G
Section 4 - Installation
4
2
10A 240V
LD28285
43