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33
Table 8 — Menu Structure*
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
NOTES
STATUS
ECONO AVAIL
NO
YES/NO
FIRST STAGE COOLING DEMAND (Y1–IN)
YES = economizing availa
b
le; the system can use outside air for free cool-
ing when re
q
uired
ECONOMIZING
NO
YES/NO
FIRST STAGE COOLING RELAY OUTPUT
YES = outside air
b
eing used for 1 stage cooling
OCCUPIED
NO
YES/NO
OCCUPIED
YES = OCC signal received from space thermostat or
unitary controller
YES = 24 Vac on terminal OCC
NO = 0 Vac on terminal OCC
HEAT PUMP
N/A
**
COOL
HEAT
HEAT PUMP MODE
Displays COOL or HEAT when system is set to heat pump
(Non-conventional)
COOL Y1—IN
OFF
ON/OFF
FIRST STAGE COOLING DEMAND (Y1-IN)
Y1–I signal from space thermostat or unitary controller for cooling stage 1.
ON = 24 Vac on terminal Y1–I
OFF = 0 Vac on terminal Y1–I
COOL Y1—OUT
OFF
ON/OFF
FIRST STAGE COOLING RELAY OUTPUT
Cool stage 1 Relay Output to stage 1 mechanical cooling
(Y1–OUT terminal)
COOL Y2—IN
OFF
ON/OFF
SECOND STAGE COOLING DEMAND (Y2–IN)
Y2–I signal from space thermostat our unitary controller for second stage
cooling.
ON = 24 Vac on terminal Y2–I
OFF = 0 Vac on terminal Y2–I
COOL Y2—OUT
OFF
ON/OFF
SECOND STAGE COOLING RELAY OUTPUT
Cool Stage 2 Relay Output to mechanical cooling
(Y2–OUT terminal)
MA TEMP
_ _ . _ F
0 to 140 F
SUPPLY AIR TEMPERATURE, Cooling Mode
Displays value of measured mixed air from MAT sensor.
Displays _ _ . _ F if not connected, short or out-of-range.
DA TEMP
_ _ . _ F
0 to 140 F
DISCHARGE AIR TEMPERATURE, after Heating section
Displays when Discharge Air sensor is connected and displays measured
discharge temperature.
Displays _ _ . _F if sensor sends invalid value, if not connected, short or
out-of-range.
OA TEMP
_ _ . _ F
-40 to 140 F
OUTSIDE AIR TEMP
Displays measured value of outdoor air temperature.
Displays _ _ . _F if sensor sends invalid value, short or
out-of-range.
OA HUM
_ _ %
0 to 100%
OUTSIDE AIR RELATIVE HUMIDITY
Displays measured value of outdoor humidity from
OA sensor.
Displays _ _% if not connected short, or out-of-range.
RA TEMP
_ _ . _ F
0 to 140 F
RETURN AIR TEMPERATURE
Displays measured value of return air temperature from
RAT sensor.
Displays _ _ . _ F if sensor sends invalid value, if not connected, short or
out-of-range
RA HUM
_ _ %
0 to 100%
RETURN AIR RELATIVE HUMIDITY
Displays measured value of return air humidity from
RA sensor.
Displays _ _% if sensor sends invalid value, if not connected, short or out-
of-range
IN CO2
_ _ _ ppm
0 TO 2000 ppm
SPACE/RETURN AIR CO
2
Displays value of measured CO
2
from CO
2
sensor. Invalid if not connected,
short or out-of-range
DCV STATUS
N/A
ON/OFF
DEMAND CONTROLLED VENTILATION STATUS
Displays ON if a
b
ove setpoint and OFF if
b
elow setpoint, and ONLY if a
CO
2
sensor is connected.
DAMPER OUT
2.0v
2.0 TO 10.0v
Displays voltage output to the damper actuator.
ACT POS
N/A
0 to 100%
Displays actual position of outdoor air damper actuator
ACT COUNT
N/A
1 to 65535
Displays num
b
er of times actuator has cycled.
1 cycles e
q
uals 180 deg. of actuator movement in any direction.
ACTUATOR
N/A
OK/Alarm (on Alarm
menu)
Displays ERROR if voltage or tor
q
ue is
b
elow actuator range.
EXH1 OUT
OFF
ON/OFF
EXHAUST STAGE 1 RELAY OUTPUT
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
EXH2 OUT
OFF
ON/OFF
EXHAUST STAGE 2 RELAY OUTPUT
Output of AUX terminal; displays only if AUX = EXH2
ERV
OFF
ON/OFF
ENERGY RECOVERY VENTILATOR
Output of AUX terminal; displays only if AUX = ERV
MECH COOL ON
or
HEAT STAGES ON
0
0, 1, or 2
Displays stage of mechanical cooling that is active.
Displays the stage of heat pymp heating that is active.
FAN SPEED
N/A
LOW or HIGH
SUPPLY FAN SPEED
Displays speed setting of fan on a 2-speed fan unit.
W (HEAT ON)
N/A
ON/OFF
HEAT DEMAND STATUS
Displays status of heat demand on a 2-speed fan unit.
Summary of Contents for 50KC*A/B0 Series
Page 4: ...4 Fig 2 Dimensional Drawing...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont...
Page 22: ...22 Fig 38 Electro Mechanical Control Wiring Diagram...
Page 23: ...23 Fig 39 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Page 24: ...24 Fig 40 Electro Mechanical Power Wiring...
Page 25: ...25 Fig 41 PremierLink Wiring Schematic...
Page 26: ...26 Fig 42 PremierLink Wiring Schematic with Humidi MiZer System...
Page 27: ...27 Fig 43 RTU Open System Control Wiring Diagram...
Page 28: ...28 Fig 44 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Page 43: ...43 Fig 57 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...
Page 44: ......
Page 45: ......