KE2 EvapOEM - Menus and Parameters Overview; BASIC Setpoints Menu; ADVANCED Setpoints Menu; Setpoint Descriptions

Q.1.45 October 2022
Page 7
© Copyright 2022 KE2 Therm Solutions, Inc., Washington, Missouri 63090
KE2 EvapOEM
Quick Start Guide
ADVANCED Setpoints Menu - Press and hold BACK. Setpoints marked with * depend on an auxiliary board or other setpoints to appear.
(E) denotes default if DEFROST TYPE = ELECTRIC, (A) denotes default if DEFROST TYPE = AIR.
Basic Display KE2 Combo Display
Min Max Default Descripon
Abbreviaon Scrolling Text
tS
tS
ROOM TEMP
-50.0°F 90.0°F
0.0°F (E)
37.8°F (A)
Room temperature to be maintained (cut-out temperature).
rFG
rF
G
REFRIGERANT
N/A N/A R-404A Refrigerant used. See table on page 12.
dtY
dt
Y
DEFROST TYPE
N/A N/A Electric
(ELE) for electric. (Air) for off time. (HGn) for hot gas with LLS relay on. (HGF) for hot gas with
LLS relay off.
Edt
Edt
VALVE TYPE
N/A N/A Mechanical Expansion valve used on system. See table on page 12.
ind
i
nd
DEFROST MODE
N/A N/A Demand
Mode to initiate defrost. (dnd) demand. (SCH) schedule. (rnt) comp run time.
dPd*
dPd
DEFROSTS / DAY
0 8 5
If DEFROST MODE = SCH: Defrosts per day. Number of evenly spaced defrosts per day.
dtP
dtP
DEFROST TERM TEMP
35.0°F 90.0°F
50.0°F(E)
39.8°F (A)*
Temperature the coil sensor(s) must exceed to terminate defrost. *If DEFROST TYPE = AIR,
term temp will automatically adjust 2.0°F above ROOM TEMP if ROOM TEMP if changed.
dEF*
dEF
DEFROST PARAMETER
0 90
30 (E)
40 (A)
If DEFROST MODE = DEMAND: Do not adjust unless directed to by KE2 Therm tech support.
dtL*
dtL
MAX DEFROST TIME
0 min. 90 min. 45 min.
If DEFROST MODE = SCH: Maximum amount of time the defrost relay will be energized.
drn
drn
DRAIN TIME
0 min. 15 min.
2 min. (E)
0 min. (A)
Time to be in drain mode (drip time).
rFt
rFt
REFRIG FAN TYPE
Manage/Cycle, Per-
manent, On with Com-
pressor, Title 24
On w/
Compressor
Select evaporator fan management. (CYC) cycle, i.e. manage fans during refrigeration and
off cycle. (FoC) fans on w/ compressor will primarily manage fans only during the off cycle.
(PEr) permanent forces fans to run during refrigeration and off cycle. (t24) Title 24 cycles
fans based on California's Title 24 regulations.
FtS
FtS
MIN FAN SWITCH TIME
10 sec. 240 sec. 10 sec. Minimum time before fans can be turned on again after turning off.
Stt
Stt
SUPERHEAT
5.0°F 30.0°F
EEV = 8.0°F
TEV = 20.0°F
When EEV selected, target superheat value. When mechanical valve selected, high
superheat alarm threshold. If humidity control enabled, becomes minimum superheat
value.
LPt*
LPt
MAX TIME FOR LPCO
0 min. 15 min. 0 min.
If EEV selected: 0 = Disabled. Do not enable unless instructed to by KE2 Therm tech support.
Maximum time allowed to run compressor after entering off mode or defrost. If suction
pressure does not reach (LPC) Low Pressure Cutout in this time will lead to (Pdt) Pump
Down Timeout alarm.
LPC*
LPC
LOW PRESSURE
CUT OUT
-5.0 psig 138.0 psig 8.0 psig
If LPt greater than 0: Low pressure cut-out when low pressure cut-out (LPCO) mode is
enabled. LPCO is enabled when (LPt) is set to a value higher than 0 min.
LPd*
LPd
PRESS DIFF FOR LPCO
1.0 psig 50.0 psig 15.0 psig
If LPt greater than 0: Differential for low pressure cut-in when LPCO mode is enabled.
LOW PRESSURE CUT OUT + PRESS DIFF FOR LPC = low pressure cut-in.
Att*
Att
LPCO ATTEMPTS
1 5 5
If LPt greater than 0: Number of times comp. contactor relay may be de-energized during a
refrigeration run cycle due to low pressure, or energized during an off cycle due to high
pressure, before triggering (SCC) Short Compressor Cycle alarm.
rnt*
rnt
COMP RUN TIME
0 hrs. 24 hrs. 6 hrs.
If DEFROST MODE = rnt: Runtime defrost only, hours of refrigeration before initiating a defrost.
Htn*
Htn
ELECTRIC DEFROST
MODE
N/A N/A Pulse
If DEFROST TYPE = ELE: (Prn) Permanent, leaves defrost relay energized during the defrost
cycle. (PUL) Pulse, utilizes advanced heater management.
HAo
HAo
HIGH TEMP ALARM
OFFSET
0°F 99.9°F
10.0°F (E)
3.0°F (A)
Degrees above ROOM TEMP + AIR TEMP DIFF to trigger HIGH TEMP ALARM.
HAd
HAd
HIGH TEMP ALARM
DELAY
0 min. 120 min. 60 min.
Delay before triggering HIGH TEMP ALARM.
LAo
LAo
LOW TEMP ALARM
OFFSET
0°F 20.0°F 4.0°F
Degrees below ROOM TEMP to trigger LOW TEMP ALARM.
LAd
LAd
LOW TEMP ALARM
DELAY
0 min. 30 min. 10 min.
Delay before triggering LOW TEMP ALARM.
dAd
dAd
DOOR ALARM DELAY
0 min. 180 min. 30 min.
Time door must be open before triggering DOOR OPEN ALARM. Requires door switch.
AU1
AU
1
AUX IN 1 MODE
N/A N/A Disabled See Auxiliary Input Modes table on page 12.
BASIC Setpoints Menu - Press and hold ENTER
Basic Display KE2 Combo Display
Min Max Default Descripon
Abbreviaon Scrolling Text
tS
tS
ROOM TEMP
-50.0°
F
90.0°F
0.0°F (E)
37.8°F (A)
Room temperature to be maintained (cut-out temperature).
rFG
rF
G
REFRIGERANT
N/A N/A R-404A Refrigerant used. See table on page 12.
dtY
dt
Y
DEFROST TYPE
N/A N/A Electric
(ELE) for Electric. (Air) for off time. (HGn) for hot gas with LLS relay on. (HGF) for hot gas with
LLS relay off.
Menus and Parameters