KE2 Compressor Sequencer OEM - Webpage Setpoints - Main Board

Webpage Setpoints - Main Board
The following setpoints are available on the broswer interface of the Main Board.
Setpoint   Default
Relays
RELAY#1 Controls one stage or component.
Disabled, Fixed Speed, Variable Speed①,
Digital①, HG Defr Relay, LLS, Unldr for
Cmp2, Unldr for Cmp3
Disabled
RELAY#2 Controls one stage or component.
Disabled, Fixed Speed, Variable Speed①,
Digital①, HG Defr Relay, LLS, Unldr for
Cmp1, Unldr for Cmp3
Disabled
RELAY#3 Controls one stage or component.
Disabled, Fixed Speed, Variable Speed
①,
Digital①, HG Defr Relay, LLS, Unldr for
Cmp1, Unldr for Cmp2
Disabled
COMP HP
Once compressor type is selected, the HP of each com-
pressor can be set.
0.1 HP to 50.0 HP 5.0 HP
Variable
Speed
MIN SPEED Minimum speed for variable speed compressors. 6.0 Hz to 60.0 Hz 6.0 Hz
VOLTAGE Select output for variable speed compressors. 0 to 10VDC or 0 to 5VDC 0 to 10VDC
Defrost
Load
MAX LOAD
Maximum load, in BTU or AMPs, that the circuit can
sustain at one me.②
0 Amps to 15,000 Amps
0 BTU TO 6,000,000 BTU
80 Amps
UNITS Units for heater or refrigeraon load during defrost. ② Amps/Btu Amps


Select whether target sucon pressure can oat accord-
ing to room temperature.
Fixed Sucon, Float Sucon
Fixed
Sucon
REFRIGERANT Referigerant used in the system.
R-404A, R-507, R-407A, R-407C, R-422A,
R-422D, R-134A, R-22, R-717, R-438A,
R-408A, R-409A, R-407F, R-410A, R-744,
R-448A, R-449A, R-450A, R-513A
R-404A
SUCTION PRESSURE Target sucon pressure the controller works to maintain.
0 to 150 psig*
*Max for R410A: 300 psig; R744: 500 psig
25 psig ,
250 psig for
R-744
ROOM TEMP Room temperature setpoint for sucon oat. -50.0°F to 90.0°F (-45.5°C to 32.2°C) -10.0°F
SUC PRESS DIFF
Sucon Pressure Dierenal – when all compressor are
set to xed speed, controller will load and unload stages
outside of this range. For digital and variable speed
compressors, determines ideal range for sucon pressure
(target sucon pressure ± the dierenal).
0.1 psi to 5.0 psi 2.0 psi
2ND ROOM TEMP
When 2nd Temp Digital Input is acve, this value be-
comes the new room temperature setpoint for sucon
oat.
-50.0°F to 90.0°F (-45.5°C to 32.2°C)
-50.0°F
(-45.5°C)
2ND SUCTION
PRESSURE
When 2nd Pres Digital Input is acve, this value becomes
the new target sucon pressure.
0 to 150 psig*
*Max for R410A: 300 psig; R744: 500 psig
50.0 psig
MIN STAGE DELAY TIME Minimum me between switching stages. 2 sec to 240 sec 15 sec
MIN COMP RUNTIME Minimum me compressor must run before turning o. 0 sec to 240 sec 60 seconds
CUT OUT PRESSURE
System turns completely o when sucon pressure drops
below this pressure.
0 to 150 psig*
*Max for R410A: 300 psig; R744: 500 psig
5.0 psig
MIN COMP OFFTIME Minimum me compressor must be o before turning on. 0 sec to 240 sec 60 seconds
MAX PUMP OUT TIME Sets maximum me to reach cut-out pressure. 0 min to 240 min 2 minutes
TEMP UNITS Temperature Units Fahrenheit, Celsius Fahrenheit

Inputs
INPUT 1 MODE Select funcon for Input 1 on the Main Board.
Disabled, In Cmp Temp, Room Temp.
Monitor, HG Defr Req, 2nd Pres, 2nd
Temp, Comp Module, Hi Pres Safety, Oil
Safety, Sys O
Disabled
INPUT2 MODE
Select funcon for Input 2 on the Main Board. Disabled
INPUT 3 MODE Select funcon for Input 3 on the Main Board. Disabled
INPUT 1 STATE
Select acve state for Input 1.
Closed, Open Closed
INPUT2 STATE Select acve state for Input 2. Closed, Open Closed
INPUT3 STATE Select acve state for Input 3. Closed, Open Closed
Q.2.60 March 2019
Page 26
KE2 Compressor Sequencer OEM pn 21768
Quick Start Guide