IT Cooling
LogiCool
OnRak
IT Cooling
41
Technical, Installation and Maintenance Manual :6912497 V1.8.0 _08_2014
Interconnecting Wiring
OnRak
L1
{
Í
Mains incoming supply 230V/1PH/50Hz
N1
{
Í
PE
{
Í
509
{
Î
Flow solenoid valve
500
{
Î
Common
509
{
Î
Return solenoid valve
500
{
Î
Common
824
{
Î
Signal to chilled water valve
500
{
Î
Common
502
{
Î
24VAC
827
{
Í
Air on temperature
828
{
Í
Air on humidity
502
{
Í
24VAC
500
{
Í
Common
SCR
{
Í
Screened cable terminated at controller.
561
{
Î
Critical Alarm
Volt Free Common Alarm
560
{
Î
Volt Free Alarm N/O
562
{
Î
Volt Free Alarm N/C
564
{
Î
Non Critical Alarm
Volt Free Common Alarm
563
{
Î
Volt Free Alarm N/O
RX-/Tx-
{
Í
Use Awg20/22 twisted pair (with overall shield) cable, Belden
ref. 8762 (Airedale ref: 6110316), or equivalent, for
network
Network Connections (Inward connection)
RX+/Tx+
{
Í
GND
{
Í
RX-/Tx-
{
Î
Use Awg20/22 twisted pair (with overall shield) cable, Belden
ref. 8762 (Airedale ref: 6110316), or equivalent, for
network
Network Connections (Outward connection)
RX+/Tx+
{
Î
GND
{
Î
