28 TGZ 040A through TGZ 190A OMM TGZ-1
Table 15, Setpoints, Continued
Description Default Range PW
Evap Pump #1 Only
#1 Only, #2 Only, Auto, #1 Prim, #2
Prim
M
Cond Delta T 10.0 ºF 5.0 to 40.0 ºF O
Cond Pump Recirculate Timer 30 15 to 90 seconds M
Cond Pump #1 Only
#1 Only, #2 Only, Auto, #1 Prim, #2
Prim
M
Demand Limit Off Off, On M
Hot Gas Delay Time 30 seconds 30 to 180 seconds M
BAS Protocol Modbus BACnet, LonWorks, Modbus M
Ident number 001 000-200 M
Baud rate 9600 1200,2400,4800,9600,19200 M
Units F/psi F/psi (only)
Language English English (only)
* Refrigerant Select None R134a,R22, R407C,R410A
Cooling Reset Type None
None, 4-20mA,
[Return( Refrig = R134a only)]
O
Cooling Maximum Reset 10 ºF 0 to 16 ºF O
Cooling Start Reset Delta T 10 ºF 0 to 16 ºF O
Heating Reset Type None None, 4-20mA, Return O
Heating Maximum Reset 10 ºF 0 to 40 ºF O
Heating Start Reset Delta T 10 ºF 0 to 40 ºF O
Compressor
# of Compressors 4 4, 6 M
Clear Cycle Tmr Off On/Off M
Stage Up Delay 240 seconds 120 to 480 seconds 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
Expansion Valve Type, Thermal for TGZ
040-120, Electronic for TGZ 150-190
Thermal
Thermal, Electronic
M
Circuit 1 EXV Control Auto Auto, Manual M
Circuit 1 EXV Position N/A 0-100% M
Circuit 2 EXV Control Auto Auto, Manual M
Circuit 2 EXV Position N/A 0-100% M
Alarms
Low Evap Pressure-Hold M
Low Evap Pressure-Unload M
High Cond Pressure – Unload M
High Cond Pressure – Stop
See Table 16
and Table 17
See Table 16 and Table 17
M
Evap. Freeze 38.0 °F
w/water 37 to 42 °F
w/glycol: 12.5 to 42.0 °F
M
Cond. Freeze 34.0 °F 18 to 42 °F M
High Condenser Pressure Stop 185 psi 170 to 425 psi M
Evap Flow Proof 5 seconds 5 to 15 seconds M
Cond Flow Proof 5 seconds 5 to 15 seconds M
Recirc Timeout 3 minutes 1 to 10 minutes M
* Phase Voltage Protection N N,Y M
* Ground Fault Protection N N,Y M
Cooling Tower TGZ in Cooling Mode
Tower Control None None, Temperature M
Tower Stages 2 0 to 2 M
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