SECTION 4 - INSTALLATION
JOHNSON CONTROLS
43
Form 201.47-ICOM1
Issue date: 17/11/2022
4
RESERVED FOR
CUSTOMER WIRING
ENTRY
Figure 21 - Reserved customer wiring entry
For YVAA 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 degrees con-
duit. After connecting the wires, water proofing mea-
sures need to be taken to meet IP65.
Failure to connect the power connection
to the water box heater wiring box, or to
meet IP65, voids warranty.
22
24
5
8
6
12
14
3
4
1
11
A1
21
A2
A2
PE/G
H
N
220VAC-1PH-50HZ
(CUSTOMER CONNECTION)
324
326, 326A
2
POLE BREAKER
10A 240V
324
325, 326, PE/G
ETH1
ETH2
TO
1
2, 29, G
2
29
325,
325A
PE/G
PE/G
WBHTR
Figure 22 - Water box heater wiring box
To Next Page
Loading...
Need help?
General
