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The PM7600B Program Module allows the W7600 System to control discharge air temperature and duct static pressure in variable air volume air handling applications by modulating, energizing and de-energizing fan, heating and cooling stages. It also monitors discharge air, space air, outside air, mixed air and condenser water inlet temperatures.

• For use with Network Compatible W7600A-F 2XXX Control Modules only.
• Communicates on Honeywell 2-Wire CNAP Network.
• Provides P+I+D control of discharge air temperature and duct static pressure.
• Provides modulating control of heating, cooling, fan and economizer.
• Controls up to twelve stages of cooling and six stages of heating.
• Controls up to four compressors.
• Minimum on/off and interstage times for compressors and unloaders.
• Controls lead/lag of compressors.
• Controls liquid line solenoid valves and compressor unloaders.
• Uses economizer for free cooling.
• Controls chilled water and/or condenser water pump.
• Mechanical cooling lockout setpoint based on outdoor air and/or condenser water inlet temperature.
• Minimum on/off times for heating stages.
• Provides reset and night setback based on space, outdoor or return air temperature.
• Demand limit control function via discharge air setpoint bump enabled by CNAP Network or a digital input.
• Monitors discharge air, space air, outside air, and condenser inlet water temperatures.
• Inputs, outputs and equipment control parameters are user programmed with ZM7601 Configuration Software or ZM7603 Remote Monitoring Software.
• Provides programming of control parameters and alarm annunciation through the S7600 Keyboard Display Module.
• Automated remote reporting by using a personal computer, ZM7603 Remote Monitoring Software and Q7640 Network Interface Unit.
• Provides local, network and remote annunciation of the following alarms: Duct High Pressure, Heat Failure, Freeze Stat, Compressor High Pressure, Compressor Oil Pressure, Dirty Filter, Proof of Airflow, Proof of Condenser Water Flow, Compressor Failure, Compressor Low Pressure.
• Up to eight digital outputs can be network controlled for lighting or start/stop control.

PM7600B PROGRAM MODULE DESCRIPTION
    The PM7600B Program Module is an EPROM used with the Network Compatible W7600 Control System. The program module must be installed in the W7600A-F 2XXX Control Module only. The PM7600B is factory-installed in specific W7600 models.
    The PM7600B Program Module allows the W7600 to precisely control discharge air (DA) temperature and static pressure in a variable air volume (VAV) application. Along with basic temperature and static pressure control, the PM7600B may also be programmed to control condenser pumps and economizers. Also, it controls safety features such as compressor lockout on high or low refrigerant pressure, fan failure and dirty filter;
    Additional networking features include:
    � Network time-of-day control of assigned digital outputs for use in lighting control and other applications.
    � Demand limit control via change of discharge air temperature setpoint from a network-provided digital input.
    � Programmable zone specific time-of-day bypass to the occupied state using the W7620 VAV box controller.
    The S7600A Keyboard Display Module is used to program and monitor discharge air temperature, static pressure, space and outdoor air temperatures, and all alarms and setpoints. The PM7600B contains the control options, control program and application-specific screens for the S7600A.
    The PM7600B Software provides options for W7600/ W7601 analog an