IOMM ACZ1 ACZ 010A through 039A
27
Table 10, Setpoints
Description Default Range PW
Unit
Unit Enable OFF OFF, ON O
Available Mode COOL
COOL
TEST M
Control Source SWITCHES
SWITCHES, KEYPAD,
NETWORK
O
Display Units
°
F/psi
°
F/psi
O
Language ENGLISH ENGLISH, O
BAS Protocol None None, BACnet, L
ON
W
ORKS
M
* Condenser Fans Stages 2 2,3 M
* Phase Voltage Protection N N,Y M
* SpeedTrol Option N N,Y M
Staging
Stage Up Delay 120 20 to 240 sec M
Stage Down Delay 30 10 to 60 sec M
Timers
Evap Flow/Air Flow Proof 5 sec 3 to 120 sec M
Low Evap Pressure Delay 60 sec 10 sec to 120 sec M
Start-Start 15 min 10 to 60 min M
Stop-Start 5 min 3 to 20 min M
Alarms
Low Evap Pressure 58 psi 30 to 60 psi M
Low Evap Pressure-Hold 59 psi 31 to 65 psi M
Low Evap Pressure-Unload 59 psi 31 to 65 psi M
High Condenser Stage Down 370 psi 365 to 375 psi M
High Condenser Pressure 380 psi 380 to 390 psi M
* Low Ambient Lockout
35.0
°
F –2 to 60
°
F
M
Condenser Fans
Fan Stages 2 2-3 M
Stage #1 On 150psi 140 to 200 psi M
Stage #2 On 290 psi 230 to 330 psi M
Stage #3 On 310 psi 230 to 330 psi M
Stage #1 Off Off Off with Stage #1 M
Stage #2 Off 170 psi 150 to 200 psi M
Stage #3 Off 180 psi 150 to 200 psi M
(*) These items are factory set prior to shipment.
Equipment Protection Alarms
Equipment protection alarms execute rapid compressor shutdown.
The following table identifies each equipment protection alarm, gives the condition that causes the
alarm to occur, and states the action taken because of the alarm. If the alarm is auto-clearing, the
reset condition is shown below. Otherwise, the alarm is manually reset, requiring the operator to clear
the alarm.
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