Instruction manual
Table Of Contents
- Introduction
- Using the Keypad/Display
- Keypad/Display Menu Structure
- System Summary Menu
- Standard Menus
- System Menu
- Occupancy Menu
- Temperature Menu
- Flow Summary Menu
- Supply Fan Speed Menu
- Return/Exhaust Fan Speed Menu
- Cooling Menu
- Head Pressure Menu
- Evap Condensing Menu
- Economizer Menu
- Min OA Damper Menu
- Heating Menu
- Energy Recovery
- Dehumidification Menu
- Daily Schedule Menu
- One Event Schedule Menu
- Holiday Schedule Menu
- Optimal Start Menu
- Operating Hours Menu
- Extended Menus
- Unit Setup Menu
- Timer Settings Menu
- Time/Date Menu
- Supply Fan Setup Menu
- Return/Exhaust Fan Setup Menu
- Zone Temperature Setup Menu
- Compressor Setup Menu
- Head Pressure Setup Menu
- Chilled Water Setup Menu
- Economizer Setup Menu
- Design Flow Setup Menu
- Heating Setup Menu
- Dehumidification Setup Menu
- Alarm Out Configuration Setup Menu
- Alarm Limits Setup Menu
- Manual Control Menu
- LON/BACnetIP/BACnetMSTP Setup Menu
- Active Alarm Menu
- Alarm Log Menu
- Advanced Menus
- Unit Configuration Setup Menu
- Save/Restore Menu
- Alarm Delays Setup Menu
- Analog Input Status Menu
- Universal I/O Status Menu
- Digital Input Status Menu
- Digital Output Status Menu
- Adv Setup Settings Menu
- Adv Status Parameters Menu
- Alarms
- Operator’s Guide
- Determining Unit State
- Off Operating State
- Start Up Operating State
- Recirculating Operating State
- Heating
- Economizer
- Mechanical Cooling
- Determining Unit Status
- Determining Control Mode
- Determining Cooling Status
- Determining Heat Status
- Determining Economizer Status
- Determining Cooling Capacity
- Determining Heating Capacity
- Determining Supply Air Fan Capacity
- Determining RF/EF Capacity
- Determining Outside Air Damper Position
- Determining Emergency Mode
- Determining Application Mode
- Determining Occupancy Status
- Determining Occupancy Mode
- Determining Occupancy Source
- Unoccupied Operation
- Scheduling
- Temperature Control Configurations
- Heat/Cool Changeover
- Dehumidification
- Energy Recovery
- Outside Air Damper Control
- Outside Air Damper Control, Two Position
- Special Procedures for Units with WRV and More Than Two Circuits.
- Water Pump Control
- Cooling: Multistage
- Cooling: Modulating
- Heating Control
- Modulating
- Min DAT
- Indoor Air Fan - On/Off Control
44 McQuay OM 920
Keypad/Display Menu Structure
Manual Control Menu
The manual control of operation is a function that is used for operating the unit during a
service call only. The unit must not be operated in this mode for any extended period of time.
Table 39: Manual Control Manual
Menu Display Name Item Display Name Default Setting Range Password Level
Manual Control Manual Ctrl= Normal Normal 4
ManCtrl
Supply Fan= Off Off 4
On
RF/EF VFD= Off Off 4
On
SAF Spd Cmd= 0% 0-100% 4
RF/EF Spd Cmd= 0% 0-100% 4
OAD/Econo= 0% 0-100% 4
OAD OpCl= Close Close 4
Open
Comp 1 = Off Off 4
On
Comp 2 = Off Off 4
On
Comp 3 = Off Off 4
On
Comp 4 = Off Off 4
On
Comp 5 = Off Off 4
On
Comp 6 = Off Off 4
On
Comp 7 = Off Off 4
On
Comp 8 = Off Off 4
On
CFan Outpt 1= Off Off 4
On
CFan Outpt 2= Off Off 4
On
CFan Outpt 3= Off Off 4
On
BP/WR Valve= 0% 0-100% 4
CW Valve= 0% 0-100% 4
ECond VFD= Off Off 4
On
ECFan Spd Cmd= 0% 0-100% 4
EC Drn Valve= Close Close 4
Open
Sump Pump= Off Off 4
On
Main Gas Vlv= Close Close 4
Open
Htg Valve= 0% 0-100% 4
F&BP Damper= 0% 0-100% 4
Htg Stg 1= Off Off 4
On
Htg Stg 2= Off Off 4
On
Htg Stg 3= Off Off 4
On
Htg Stg 4= Off Off 4
On