8.0 GENERAL INFORMATION
IRN37–160K–CC & IRN50–200H–CC & IRN75–160K–2S & IRN100–200H–2S
48
KEY
1ATS
Switch, high airend discharge temperature
1DPS
Switch, fouled oil filter
1VAC
Switch, fouled air filter
2ATT
Sensor, airend discharge temperature
2CTT
Sensor, injected coolant temperature
3APT
Transducer, sump pressure, wet side
3SV
Valve, blowdown solenoid
4APT
Transducer, package air discharge pressure
4ATT
Sensor, package discharge temperature
6APT
Transducer, sump air pressure, dry side
9APT
Transmitter, remote air pressure (optional)
11SV
Valve, anti – condensation
AT
Autotransformer (if fitted)
AW1
Auxiliary warning 1
AW2
Auxiliary warning 2
BP
Backplate
CAB
Cabinet
CFO
Common fault output
EXC
External communications
DR
Drive
DVF
Blower, drive box ventilation
EB
Earth bar
ES
Switch, emergency stop
FM
Motor, Blower
GND
Ground
HTR1
Space heater 25 watts
HTR2
Space heater 25 watts
K1
Relay, run
K2
Relay fault
KM1
Contactor, main motor
KM4
Contactor, blower motor
MCB1 Breaker, miniature circuit, transformer
MCB2 Breaker, miniature circuit, VFD
MCB3 Breaker, miniature circuit, control circuits
MCB4 Breaker, miniature circuit, VFD supply
MCB5 Breaker, miniature circuit, PSU
MCB9 Breaker, miniature circuit, space heaters
MF
Mains filter (if fitted)
MM
Motor, main drive
MMS
Breaker, blower motor
OPT
Optional
OV
Zero voltage
PE
Protected earth
PORO Power outage restart option (optional)
PSU
Power supply unit
RFI
Filter, radio frequency interference
RSP
Remote stop
RST
Remote start
SGN
Controller, Intellisys
SL
Serial link
SS1–3 Relay, solid state
ST
Service tool
T1
Transformer, control
TDO
Timer, delay off
TH
Thermostat
TRR
True running
WR
General warning
4SV
Water shut–off valve (water cooled only)
Colors
BLK
Black
BLU
Blue
BRO
Brown
GRE
Green
PIN
Pink
RED
Red
SCR
Screened
VIO
Violet
WHI
White
YEL
Yellow
Wires
Numbers
Function
Wire color
1–99
Power
Black
100–199
AC Control
Red
200–299
DC Control
Blue
300–399
Auxiliary
Orange