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Q.1.3 July 2015
Page 19
Setpoints Menu - STPT
KE2 Evaporator Efficiency
Quick Start Guide
Parameter Name Description Range Default Current
ROOM TEMP Walk-in freezer or cooler room temperature to be maintained -50°F to 90°F -10°F
DEFROST TYPE
Method of defrost used on the evaporator coil: Electric, Air, Hot Gas with Liquid Line Solenoid/Compressor relay off, Hot Gas with
Liquid Line Solenoid/compressor relay on
ELEC, AIR, HOT GAS COMP ON, HOT GAS COMP OFF ELEC
VALVE TYPE
Type of valve used on the system: mechanical, pre-configured electric, custom EEV configuration
MECHANICAL, KE2 RSV, KE2 HSV, SER/SEI 1 TO 20, SER B TO L, SEI 30, SEI 50, SEH, ETS12 TO 50,
ETS100, ETS250/400, CAREL, CUSTOM;
MECHANICAL
Cust
om
EE
V onl
y
MOTOR TYPE If VALVE TYPE = CUSTOM: The motor type used in the valve BIPOLAR, UNIPOLAR BIPOLAR
MOTOR STEP RATE If VALVE TYPE = CUSTOM: The motor speed setting in number of steps per second 30 to 400 steps/second 200 steps
MAX VALVE STEPS If VALVE TYPE = CUSTOM: The total number of steps required to move the valve from closed to fully open 200 to 6400 steps 1600 steps
SUPERHEAT
The superheat value that the controller will maintain, (not applicable if VALVE TYPE = MECHANICAL) 5°F to 30°F 8°F
MAX OPERATING PRES
The maximum allowable suction pressure, (not applicable if VALVE TYPE = MECHANICAL) 10-500 psig if R-744 selected, 10-300psig if R-410A selected, 10-150 psig all other refrigerants 150 psig
REFRIGERANT
The type of refrigerant used in the refrigeration system 404A, R507, 407A, 407C, 422A, 422D, 134A, R22, R717, 438A, 408A, 409A, 407F, 410A, R744 404A
AUX TEMP 4 MODE
Configuration mode of the auxiliary temperature sensor DISABLED, MONITOR, T4 ROOM TEMP, T4 COIL TEMP DISABLED
AUX TEMP 1 MODE Configuration mode of the auxiliary temperature sensor (Not available if EEV is selected) T1 SUCTION TEMP, MONITOR, T1 ROOM TEMP, 2ND COIL TEMP T1 SUCTION
AUX RELAY MODE Configuration mode of the auxiliary relay.
ALARM RELAY, 2ND COMP RELAY, 2ND FAN RELAY, 2ND DEFR RELAY, 2 SPEED FAN CTL, LIGHT
RELAY, PERM DEFROST RELAY
ALARM RELAY
FAN SPEED Provides 0-10V DC signal to control variable speed -100% to 100% 0.000 (Off)
MIN COMP RUN TIME Minimum amount of time the liquid line solenoid/compressor relay must remain on after it is energized 0 to 15 minutes 2 minutes
MIN COMP OFF TIME Minimum amount of time the liquid line solenoid/compressor relay must remain off before it can be energized again. 0 to 15 minutes 5 minutes
REFRIG FAN MODE Fan operation while in refrigeration mode ON WITH COMPRESSOR, PERMANENT, MANAGED, CONTROL FOR TITLE 24 ON WITH COMPRESSOR
DEFROST MODE The method the controller uses to determine when to initiate a defrost. DEMAND, SCHEDULED, RUN TIME DEMAND
DEFROSTS / DAY If DEFROST MODE = SCHEDULED: The number of evenly spaced defrosts per day the controller will initiate. 0 to 8 5
1ST DEFROST DELAY If DEFROST MODE = SCHEDULED: The amount of time from controller power up until the first defrost is initiated. 0 to 240 minutes 120 minutes
DEFROST FAN STATE
Whether or not to run the evaporator fans during defrost ON/OFF
OFF if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
ON if DEFROST TYPE = AIR
DEFROST TERM TEMP The temperature the coil sensor(s) must exceed in order to terminate defrost. The defrost relay is de-energized at this point. 35°F to 90°F
50°F if DEFROST TYPE = ELEC, HOT GAS COMP ON, HOT GAS COMP OFF
40°F if DEFROST TYPE = AIR
DEFROST PARAMETER
if DEFROST MODE = DEMAND: Coefficient to KE2 Defrost algorithm 0 to 90
30 if DEFROST TYPE = ELEC
10 if DEFROST TYPE = HOT GAS COMP ON, HOT GAS COMP OFF
40 if DEFROST TYPE = AIR
MAX DEFROST TIME
If DEFROST MODE = SCHEDULE or RUNTIME: The maximum amount of time the defrost relay will be energized. (Not available if DEFROST MODE = DEMAND) 0 to 90 minutes
45 minutes if DEFROST TYPE = ELEC
10 minutes if DEFROST TYPE = HOT GAS COMP ON, HOT GAS COMP OFF
40 minutes if DEFROST TYPE = AIR
DRAIN TIME
Time to be in drain mode (drip time) 0 to 15 minutes 2 minutes
COMP RUN TIME
If DEFROST MODE = RUN TIME: The amount of time liquid line solenoid/compressor relay is energized before the next defrost is initiated. 0 to 24 hours 6 hours
ELEC DEFROST MODE
If DEFROST TYPE = ELEC: Whether to leave the defrost relay energized during the defrost cycle or to utilize advanced defrost algorithm. PULSE, PERMANENT PULSE
FAN DELAY TEMP After defrost, the coil sensor reading must fall below this temperature set point in order for the controller to resume normal fan operation. -40°F to 35°F 20°F
MAX FAN DELAY TIME Maximum amount of time after defrost to resume normal fan operation. 0 to 20 minutes 2 minutes
PUMP DOWN TIME
Minimum amount of time between de-energizing the liquid line solenoid/compressor relay and energizing the defrost relay. 0 to 90 minutes
0 minutes if DEFROST TYPE = ELEC or AIR,
2 minutes if DEFROST TYPE = HOT GAS ON/OFF
MULTI AIR TEMP CTRL Select control method to use with multiple room temperature sensors AVERAGE, WARMEST WARMEST
Bonded Contr
ol
-
lers O
nl
y MULTI EVAP COOL
Select type of multi evaporator control - options are synchronous or independent SYNC, INDEPENDENT SYNC
MULTI EVAP DEFROST
Select whether to have all bonded controllers initiate defrost mode at the same time or independently. SYNC, INDEPENDENT SYNC
MULTI EVAP SENSOR
Select whether or not to share room temperature, coil temperature and suction pressure sensor data with bonded controllers. SHARED, NOT SHARED SHARED
HIGH TEMP ALARM OFFSET The number of degrees above ROOM TEMP for a HIGH TEMP ALARM condition. 0°F to 99.9°F 10°F
HIGH TEMP ALARM DELAY Minutes the room temperature must remain above ROOM TEMP + HIGH TEMP ALARM OFFSET before issuing a HIGH TEMP ALARM 0 to 120 minutes 60 minutes
LOW TEMP ALARM OFFSET The number of degrees below ROOM TEMP for a LOW TEMP ALARM condition. 0°F to 20°F 4°F
LOW TEMP ALARM DELAY Minutes the room temperature must remain below ROOM TEMP - LOW TEMP ALARM OFFSET before issuing a LOW TEMP ALARM 0 to 30 minutes 10 minutes
DOOR ALARM DELAY
If DIG IN (1, 2 and/or 3) MODE = DOOR SWITCH: The amount of time, in minutes, before an alarm condition is initiated if door is open and room
temperature is 5 degrees above ROOM TEMP + AIR TEMP DIFF
0 to 180 minutes 30 minutes
DIG IN 1 MODE
Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF DOOR SWITCH
DIG IN 1 STATE Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED
DIG IN 2 MODE Sets the function of the digital input
DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, DEFR INTERLOCK,
DEFR LOCKOUT
DISABLED
DIG IN 2 STATE
Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED
DIG IN 3 MODE
Sets the function of the digital input DISABLED, 2ND ROOM TEMP, DOOR SWITCH, EXT ALARM, SYSTEM OFF, LIGHT SWITCH SYSTEM OFF
DIG IN 3 STATE
Sets whether the switch activates when opened or closed OPEN, CLOSED CLOSED
2ND ROOM TEMP
If DIG IN (1, 2 and/or 3) MODE = 2ND ROOM TEMP: This value becomes the ROOM TEMP setpoint when the digital input is active -50°F to 90°F -50°F
SUCT PRES OFFSET
An offset added or subtracted from the suction line pressure transducer reading, if needed -5.0 to 5.0 psig 0.0 psig
SUCT TEMP OFFSET
An offset added or subtracted from the suction temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F
AIR TEMP OFFSET
An offset added or subtracted from the room temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F
COIL TEMP OFFSET An offset added or subtracted from the coil temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F
AUX TEMP OFFSET An offset added or subtracted from the auxiliary temperature sensor reading, if needed -5.0°F to 5.0°F 0.0°F
TEMP UNITS Units for temperature’s display in °F or °C FAHRENHEIT/CELSIUS FAHRENHEIT
AIR TEMP DIFF The number of degrees above ROOM TEMP before the controller will go into REFRIGERATION mode 0.1°F to 5°F 1°F
EXTREME TEMP DIFF ADVANCED TOPIC: Call KE2 Therm for assistance
PROPORTIONAL A coefficient to the valve control algorithm that increases valve responsiveness 0 to 255 3
INTEGRAL A coefficient to the valve control algorithm that increases valve responsiveness 0 to 255 5
DERIVATIVE Should not be adjusted unless instructed by KE2 Therm technical support 0 to 255 3