Carlyle Compressor Div.
P O Box 4808
Syracuse, NY 13221
Phone: 800-462-2759
Fax: 315-432-3274
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Appendix B
Wiring Schematic
LonWorks
Communication
Carlyle LonCEM
CR1
XL Contactor Coil
PW Contactor Coil
Motor
Cooling Coil
Unloader Coil
3
Vi Coil
Alarm
Output
Rack Controller
Oil Solenoid
Slimits Ccall
240V 120V L1
2
Com
VSR
7
Suctio
n
Suction
Pressure
Discharge
Pressure
Oil
Pressure
Motor
1
Temp
Discharge
1
Temp
Econ
Solenoid
CR2
Liq M
Liq D
UN
Oil
VI
AL
Reset Contacts
4
(Optional)
A 20 Second Time-Delay between Compressor Starts is Built Into the Module
Unused
R (+5)
W (sig)
B (gnd)
R (+5)
W (sig)
B (gnd)
R (+5)
W (sig)
B (gnd)
Notes:
1. Connections for Motor Temp, Discharge Temp, and echelon communications are all polarity insensitive.
2. L1 must be jumpered to 240V or 120V depending on line voltage. The drawing shows wiring for 120V. The L1
input is used to power the alarm output.
3. The compressor is
loaded
when the solenoid is energized and
unloaded
when de-energized.
4. A normally closed set of contacts can be added to reset power to the module. Useful for remotely resetting a
module out on an Alarm Failure
5. The diagnostic alarm code is flashed by the yellow alarm light during a compressor alarm.
6. The system safeties are monitored on the Slimits Input. This input actually powers the contactor output and is
switched through the module. See section 1.2 for details on the additional required system safeties.
7. A voltage sensing relay (VSR) (or an equivalent method) should be used to detect if power is lost to the line side of
the contactor (i.e. circuit breaker has tripped).
HPS/LPS
6