General Information
RT-SVX055D-EN
7
Phase Monitor
The Phase Monitor is a three-phase line monitor module
that protects against phase loss, phase reversal and phase
unbalance. It is intended to protect compressors from
reverse rotation. It has an operating input voltage range of
190–600 Vac, and LED indicators for ON and FAULT. There
are no field adjustments and the module will automatically
reset from a fault condition.
Discharge Line Thermostat Control
The high pressure controls and the discharge line
thermostats signals are wired in series and connected to
safety input of LSD. The compressor contactor coil is
connected at the "CC" terminal of the LSD. If the high
pressure control switch or the discharge line thermostat is
open, the 24VAC signal to SI input of LSD is interrupted
and the compressor contactor coil supply is disabled by
LSD. It has an automatic lockout.
Evaporator Frost Control (Optional)
This input incorporates the Frostat™ control (FOS)
mounted in the indoor coil and can be activated by closing
a field supplied contact installed in parallel with the FOS.
If this circuit is open before the compressor is started, the
compressor will not be allowed to operate. Anytime this
circuit is opened for 5 continuous seconds during
compressor operation, the compressor for that circuit is
immediately turned “Off”. The compressor will not be
allowed to restart for a minimum of 3 minutes should the
FOS close.
Locking Safety Device with Anti-Short
Cycle Timer
This device monitors compressor safety switch trips to
prevent short cycling, protecting the compressor. A
manual reset is required after a fourth safety switch trip.
Sensors
High Temperature Sensor (BAYFRST003*)
This sensor connects to the Emergency Stop Input on the
LTB and provides high limit “shutdown” of the unit. The
sensor is used to detect high temperatures due to fire in
the air conditioning or ventilation ducts. The sensor is
designed to mount directly to the sheet metal duct. Each kit
contains two sensors. The return air duct sensor
(X1310004001) is set to open at 135°F.
The supply air duct sensor (X1310004002) is set to open at
240°F. The control can be reset after the temperature has
been lowered approximately 25°F below the cutout
setpoint.
Thermostat (TCONT802AS32DA)
This thermostat is a multi-stage 3 heat/2 cool, auto-
changeover digital display thermostat. It is a
programmable thermostat, and a 7-day programmable
stat with night setback shall be available. In addition, it is
wall mounted.
Thermostat (TCONT402AN32DA)
This thermostat is a multi-stage 3 heat/2 cool, auto
changeover digital display thermostat. It is a non-
programmable, wall-mounted thermostat, and it can be
used for economizer operation.
CO
2
Sensor
This optional sensor can be added for Demand Control
Ventilation (DCV) functionality.
On units with a low leak economizer, configure the JADE
controller by setting the following parameters:
SETPOINTS Menu:
DCV SET = desired CO
2
ppm to start DCV
VENTMAX = desired maximum position w/DCV &
occupied status (2-speed applications require LO & HI
settings)
VENTMIN = desired minimum position w/DCV & occupied
status (2-speed applications require LO & HI settings)
ADVANCED SETUP Menu:
CO2 ZERO = set to detector's start level
CO2 SPAN = detector's max level minus start level
Attach the sensor to the CO
2
and "R" terminals (at
customer connections).
Note:
When using any 0-10 Vdc CO
2
sensor with the JADE
you will need to set CO2 ZERO to 400 ppm and the
CO2 SPAN to 1600 ppm in the ADVANCED SETUP
menu.
