Service manual

2-14T-294-01
2.9 REMOTE MONITORING (RM) -- O ptional
NOTE
The in-range light will be illuminated if the
container control air temperature is within the
toleranceselected. Refertosection3.1.4(Code
30).
When the remote monitor plug is connected to the
remote monitoring receptacle, the following remote
circuits are energized:
CIRCUIT FUNCTION
Sockets B to A Energizes remote cool light
Sockets C to A Energizes remote defrost light
Sockets D to A Energizes remote in-range light
2.10SAFETY AND PROTECTIVE DEVICES
Unit components are protected from damage by safety
and protective devices listed in Table 2-1. These
devices monitor the unit operating conditions andopen
a set of electrical contacts when an unsafe condition
occurs.
Open safety switchcontactsoneitherorbothofdevices
IP-CP or HPS will shut down the compressor.
Open safety switchcontacts on device IP-CM will shut
down the condenser fan motor.
Theentirerefrigerationunitwillshutdownifoneofthe
following safety devices open: (a) Circuit Breaker(s);
(b)Fuse(F3/10A);or(c)EvaporatorFanMotorInternal
Protector(s) -- (IP-EM).
Table 2-1. Safety and Protective Devices
UNSAFE CONDITION SAFETY DEVICE DEVICE SETTING
Circuit Breaker (CB-1) -- Manual Reset Trips at 29 amps (460 vac)
Excessive current draw Circui t Breake r (CB-2, 50 amp) --Manual Reset Trips at 62.5 amps (230 vac)
Circui t Breake r (CB-2, 70 amp) --Manual Reset Trips at 87.5 amps (230 vac)
Excessive current draw on the
control circuit
Fuse (F3) 10 amp rating
Excessive current draw by the
Controller/DataCORDER
Fuse (F1 & F2) 5amprating
Excessive condenser fan
motor winding temperature
Internal Protector (IP-CM) -- Automatic Reset N/A
Excessive compressor motor
winding temperature
Internal Protector (IP-CP) -- Automatic Reset N/A
Excessive evaporator fan
motor(s) winding temperature
Internal Protector(s) (IP-EM) -- Automatic Reset N/A
Abnormal
pressures/temperatures in the
high refrigerant side
Rupture Disc -- Used on the W ater-Cooled
Condenser
35 kg/cm@ = (500 psig)
Abnormally high discharge
pressure
High Pressure Switch (HPS)
Opens at 25 kg/cm@
(350 psig)