Q.1.3 November 2017
Page 19
Setpoints Menu
KE2
Evaporator
Efficiency
Quick Start Guide
Parameter Name
Description
Range
Default
Parameter Name
ROOM TEMP
Walk-in freezer or cooler room temperature to be maintained
-50°F to 90°F
-10°F
ROOM TEMP
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
DEFROST TYPE
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
VALVE TYPE
Cust
om
EE
V onl
y
MOTOR TYPE
If VALVE TYPE = CUSTOM: The motor type used in the valve
BIPOLAR, UNIPOLAR
BIPOLAR
MOTOR TYPE
MOTOR STEP RATE
If VALVE TYPE = CUSTOM: The motor speed setting in number of steps per second
30 to 400 steps/second
200 steps
MOTOR STEP RATE
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
MAX VALVE STEPS
SUPERHEAT
The superheat value that the controller will maintain, (not applicable if VALVE TYPE = MECHANICAL)
5°F to 30°F
8°F
SUPERHEAT
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
MAX OPERATING PRES
REFRIGERANT
The type of refrigerant used in the refrigeration system
404A, R507, 407A, 407C, 422A, 422D, 134A, R22, R717, 438A, 408A, 409A, 407F, 410A, 448A,
449A, 450A, 513A, R744
404A
REFRIGERANT
AUX TEMP 4 MODE
Configuration mode of the auxiliary temperature sensor
DISABLED, MONITOR, T4 ROOM TEMP, T4 COIL TEMP
T4 COIL TEMP
AUX TEMP 4 MODE
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 TEMP 1 MODE
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
AUX RELAY MODE
FAN SPEED
Provides 0-10V DC signal to control variable speed
-100% to 100%
0.000 (Off)
FAN SPEED
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 RUN TIME
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
MIN COMP OFF TIME
REFRIG FAN MODE
Fan operation while in refrigeration mode
ON WITH COMPRESSOR, PERMANENT, MANAGED, CONTROL FOR TITLE 24
ON WITH COMPRESSOR
REFRIG FAN MODE
DEFROST MODE
The method the controller uses to determine when to initiate a defrost.
DEMAND, SCHEDULED, RUN TIME
DEMAND
DEFROST MODE
DEFROSTS / DAY
If DEFROST MODE = SCHEDULED: The number of evenly spaced defrosts per day the controller will initiate.
0 to 8
5
DEFROSTS / DAY
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
1ST DEFROST DELAY
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 FAN STATE
DEFROST TERM TEMP
The temperature the coil sensor(s) must exceed in order to terminate defrost. The controller’s defrost mode is complete 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 TERM TEMP
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
DEFROST PARAMETER
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
MAX DEFROST TIME
DRAIN TIME
Time to be in drain mode (drip time)
0 to 15 minutes
2 minutes
DRAIN TIME
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
COMP RUN TIME
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
ELEC DEFROST MODE
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
FAN DELAY TEMP
MAX FAN DELAY TIME
Maximum amount of time after defrost to resume normal fan operation.
0 to 20 minutes
2 minutes
MAX FAN DELAY TIME
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
PUMP DOWN TIME
MULTI AIR TEMP CTRL
Select control method to use with multiple room temperature sensors
AVERAGE, WARMEST
WARMEST
MULTI AIR TEMP CTRL
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 COOL
MULTI EVAP DEFROST
Select whether to have all bonded controllers initiate defrost mode at the same time or independently.
SYNC, INDEPENDENT
SYNC
MULTI EVAP DEFROST
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
MULTI EVAP SENSOR
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 OFFSET
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
HIGH TEMP ALARM DELAY
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 OFFSET
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
LOW TEMP ALARM DELAY
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
DOOR ALARM DELAY
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 MODE
DIG IN 1 STATE
Sets whether the switch activates when opened or closed
OPEN, CLOSED
CLOSED
DIG IN 1 STATE
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 MODE
DIG IN 2 STATE
Sets whether the switch activates when opened or closed
OPEN, CLOSED
CLOSED
DIG IN 2 STATE
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 MODE
DIG IN 3 STATE
Sets whether the switch activates when opened or closed
OPEN, CLOSED
CLOSED
DIG IN 3 STATE
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
2ND ROOM TEMP
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 PRES OFFSET
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
SUCT TEMP OFFSET
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
AIR TEMP OFFSET
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
COIL TEMP OFFSET
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
AUX TEMP OFFSET
TEMP UNITS
Units for temperature’s display in °F or °C
FAHRENHEIT/CELSIUS
FAHRENHEIT
TEMP UNITS
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
AIR TEMP DIFF
EXTREME TEMP DIFF
ADVANCED TOPIC: Call KE2 Therm for assistance
EXTREME TEMP DIFF
PROPORTIONAL
A coefficient to the valve control algorithm that increases valve responsiveness
0 to 255
3
PROPORTIONAL
INTEGRAL
A coefficient to the valve control algorithm that increases valve responsiveness
0 to 255
5
INTEGRAL
DERIVATIVE
Should not be adjusted unless instructed by KE2 Therm technical support
0 to 255
3
DERIVATIVE
