Installation; Receiving - Yazaki AROACE Installation Instructions Manual

WFC-SC5 Wiring Diagram Legend, Rev 1B
AUX1 Auxiliary Contact Set #1 - Not Used
AUX2 Auxiliary Contact Set #2 - Not Used
CHD Operation indicator. Closes/Illuminates when chiller is Enabled.
CHE Error indicator. Closes/Illuminates when error condition exists.
CLS Cooling Interlock Switch. Cooling tower sump level switch or cooling water flow switch.
CTI Cooling Water Inlet Temperature
CTF Cooling Tower Fan
FD Cooling Tower Fan Operation Indicator. Closes when fan is on.
FS1 Chilled Water Flow Switch
FU1 Fuse. Fuji model FGAO-2 (2A)
FU2 Fuse. Fuji model FGAO-2 (4A)
HWT Heat Medium Temperature
IF Freeze Protection Enable/Disable. If open, Freeze Protection Logic will not be used.
IRS Enable/Disable contacts
LT Evaporator Temperature
NFB Non-Fused Breaker
OUT1 Output contact tied to AUX1. Closes when AUX1 is closed - Not Used
OUT2 Output contact tied to AUX2. Closes when AUX2 is closed - Not Used
P1 Chilled Water Pump ON signal. Supplied by the chiller.
P1D Chilled Water Pump Operation Input. Pump overloads.
P2 Cooling Water Pump ON signal. Supplied by the chiller.
P2D Cooling Water Pump Operation Input. Pump overloads.
P3 Heat Medium Pump ON signal. Supplied by the chiller.
P3D Heat Medium Pump Operation Input. Pump overloads.
PL Power Light. Illuminates when power is on.
RBV Refrigerant Blow-down Valve
SP Solution Pump
SV1 Solenoid Valve #1
SV9 Solenoid Valve #9
WTO Chilled Water Outlet Temperature
ZR1 Power Surge Protection Module

RECEIVING

When the absorption
delivered, inspect it for transit damage.
Should any damage have occurred, do
not proceed with installation until the
Yazaki distributor has been notified and
any required remedial actions have been
completed.
Table 2 – Internal Wiring Diagram Legend

INSTALLATION

chiller is Remember to properly plan the route
to the installation site. Also, keep in mind
when choosing the site, the unit will
someday have to be replaced, so be
mindful of permanent
permanent barriers.
6
and semi-