McQuay AGZ 010BM, Installation, Operation And Maintenance Manual

Page: 36 / 68

36 AGZ 010B through 034B IOMM AGZB1
Table 19, Setpoints
Description Default Range PW
Unit
Unit Enable OFF OFF, ON O
Unit Mode COOL
COOL
COOL w/Glycol
ICE w/Glycol
TEST
O
Control Source SWITCHES
SWITCHES, KEYPAD,
NETWORK
O
Available Modes COOL
COOL
COOL w/GLYCOL
COOL/ICE w/GLYCOL
TEST
M
Display Units
° F/psi ° F/psi
O
Language ENGLISH ENGLISH, O
Cool LWT 44. 0
°
F 20.0 to 60.0
°
F O
Ice LWT
40. 0 ° F 20.0 to 40.0 ° F
O
Evap Delta T
10. 0
°
F 6.0 to 16.0
°
F
O
Startup Delta T 10.0
°
F 1.0 to 15.0
°
F O
Stop Delta T 0.5F 0 to 3.0F O
Max Pulldown Rate 1.0F
0.5 to 5.0 ° F
M
* Refrigerant Type (Note 1) None R22, R407c --
BAS Protocol Modbus BACnet, L
ON
W
ORKS
, Modbus M
Ident Number 001 001 to 999 M
Baud rate 9600 1200,2400,4800,9600,19200 M
* SpeedTrol Option N N,Y M
Password 0000 0000 to 9999 --
Staging
Stage Up Delay 120 20 to 240 sec M
Stage Down Delay 30 10 to 60 sec M
Timers
Evap Flow Proof 3 sec 1 to 10 sec M
Evap Recirculate Timer 30 sec 15 to 300 sec. M
Low Evap Pressure Delay 30 sec 15 sec to 30sec M
Ice Time Delay 12 hrs. 1 to 23 hrs M
Clear Ice Delay NO No, Yes M
Start-Start 15 min 10 to 60 min M
Stop-Start 5 min 3 to 20 min M
Stage Up Delay 240 sec. 20 to 480 sec. M
Stage Down Delay 30 sec. 10 to 60 sec. M
Comp 1 Enable On Off, On
Comp 2 Enable On Off, On
Alarms
Evaporator Freeze 36.0
°
F 18 to 42
°
F M
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
* Phase Voltage Protection N N,Y M
* Low Ambient Lockout 35.0
°
F –2 to 60
°
F M
Condenser Fans
Fan Stages 2 2-3
Speedtrol Option No No,Yes
Stage #1 On (OAT<75
°
F) 200psi 140 to 200 psi M
Stage #2 On 290 psi 230 to 330 psi M
Stage #3 On 300 psi 230 to 330 psi M
Stage #1 Off 140 psi 130 to 170 M
Continued next page.