Unit installation

94 ACZ / AGZ-BM IOMM ACZ/AGZ-3
Setpoints
The following parameters are remembered during power off, are factory set to the Default value,
and can be adjusted to any value in the Range column. The PW (password) column indicates the
password that must be active in order to change the setpoint. Password codes are as follows:
O = Operator 0100
M = Manager 2001
Table 51, Setpoints
Description Default Range PW
Unit
Unit Enable OFF OFF, ON O
Control source
DIGITAL
INPUT
KEYPAD, BAS,
DIGITAL INPUT
O
Available Modes COOL
COOL
TEST
M
** Display Units
** Language
Protocol Modbus BACnet, LonWorks, MODBUS M
Ident number (Modbus only) 001 001-999 M
Baud rate (Modbus only) 9600 1200,2400,4800,9600,19200 M
Low Ambient Lockout
35 °F –2(35) to 60 °F
M
Demand Limit No No,Yes M
* Multipoint Power No No,Yes M
Compressor
* Number of Compressors 4 4,6 M
Stage Up Delay 120 90 to 240 sec M
Stage Down Delay 30 20 to 60 sec M
Start-Start 15 min 10 to 60 min M
Stop-Start 5 min 3 to 20 min M
Clear Cycle Timers No No,Yes M
Alarms
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 380 psi M
High Condenser Pressure 385 psi 385 to 390 psi M
* Phase Voltage Protection No No,Yes M
* Ground Fault Protection No No,Yes M
Evap Flow Proof 5 sec 3 to 30 sec M
Condenser Fans
VFD Enable No No,Yes M
* Number of Fans 4 4,6,8 M
Stage 2 On Deadband 8 1 to 20
o
F M
Stage 3 On Deadband 11 1 to 20
o
F M
Stage 4 On Deadband 14 1 to 20
o
F M
Stage 2 Off Deadband 7 1 to 20
o
F M
Stage 3 Off Deadband 6 1 to 20
o
F M
Stage 4 Off Deadband 5 1 to 20
o
F M
VFD Max Speed 100% 90 to 110% M
VFD Min Speed 25% 25 to 100% M
Sat Condenser Temp Target 110
90 to 130 °F
M
Forced Fan 1 1 1 to # Fans Per Circuit M
Forced Fan 2 2 1 to # Fans Per Circuit M
Forced Fan 3 3 1 to # Fans Per Circuit M
* Set at factory prior to shipment
** Not currently selectable