Honeywell W7750A specifications General Considerations W7750 Controllers, Appendices, 72-2958

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

General Considerations	35
W7750 Controllers	36
FACTORY DEFAULT DIGITAL OUTPUTS:	37
LONWORKS® Bus Termination Module	43
Step 5. Order Equipment	45
Step 6. Configure Controllers	48
Step 7. Troubleshooting	48
Troubleshooting Excel 10 Controllers and Wall Modules	48
Temperature Sensor and Setpoint Potentiometer Resistance Ranges	49
Alarms	49
Broadcasting the Service Message	50
W7750 Controller Status LED	50
T7770C,D Wall Module Bypass Pushbutton and Override LED	51
T7560A,B Digital Wall Module Bypass Pushbutton and LCD Display Occupancy
Symbols	51
Appendices	51
Appendix A. Using E-Vision to Commission a W7750 Controller	51
Sensor Calibration	51
Setting the Pid Parameters	51
Appendix B. Sequences of Operation	52
Common Operations	53
Room Temperature Sensor (RmTemp)	54
Remote Setpoint (RmtStptPot)	55
Setpoint Limits (LoSetptLim and HiSetptLim)	55
Bypass Mode (StatusOvrd and StatusLed)	55
BYPASSTIME	55
OverrideType	55
OverridePriority	55
Cycles per Hour (ubHeatCph and ubCoolCph)	55
T7770C,D or T7560A,B Wall Module Bypass Pushbutton Operation	55
Standby Mode (StatusOcySen)	56
Continuous Unoccupied Mode	56
Occupancy Mode and Manual Override Arbitration	56
Time Clock (Occ_Time_Clock)	57
Schedule Master (Sched_Master)	57
Setpoint Ramping	57
Recovery Ramping for Heat Pump Systems	57
Fan Operation	58
Window Sensor (StatusWndw)	58
Smoke Control	58
Demand Limit Control (DLC)	58
Dirty Filter Monitor	59
Start-Up	59
Temperature Control Operations	59
Staged Cooling Control	60
Staged Heating Control	60
Cascade Control of Modulating Cooling/Heating	61
Series 60 Modulating Control	61
Pulse Width Modulating (PWM) Control	61
Outdoor Air Lockout of Heating/Cooling	61
Economizer Damper Control	61
Indoor Air Quality (IAQ) Override	62
Freeze Stat	62
Discharge Air Low Limit Control	62
Economizer Enable/Disable Control	62
Appendix C. Complete List of Excel 10 W7750 Controller User Addresses	62
User Address Indexes (all in alphabetical order)	63
Mappable User Addresses and Table Number	64
Failure Detect User Addresses and Table Number	65
Appendix D. Q7750A Excel 10 Zone Manager Point Estimating Guide	109
Approximate Memory Size Estimating Procedure	109
Appendix E. Sensor Data for Calibration	110
Resistance Sensors	110
Voltage/Current Sensors	112

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