PM7600B Variable Air Volume Program Module. CSI 3-Part Specifications.

Network Compatible PM7600B Variable Air Volume Program Module for W7600

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.

System Description

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 and digital inputs and outputs. These monitoring and control points are used for operation of a basic VAV System. Input and output points must be configured using the ZM7601 or ZM7603 software package and an MS-DOS compatible PC. See Fig. I for a typical VAV application.

W7600 CONTROL SYSTEM DESCRIPTION
    The Network Compatible W7600 Control System provides a complete network of direct digital control using a two-wire RS-485 bus. The Q7640 Network Interface Unit provides the communication capability on the network, as well as remote communication through an external modem. The network allows sharing outdoor air temperature and other data between controllers, reducing the wiring and accessory costs of the installation. Additional features of the Q7640 NIU include trend logging, alarm dialout to remote personal computers and remote monitoring capability.
    Control functions are provided through the W7600 Control Module. The PM7600B Program Module is an EPROM that resides in the W7600 and provides customized software for VAV Systems. Each model of the PM7600 contains algorithms and control strategies designed to control a specific type of equipment. The W7600 controls by monitoring analog and digital inputs, processing the PM7600 algorithms and controlling the analog or digital outputs provided in the W7600 Control Module.
    The W7601 Module allows for expansion of inputs and outputs. The R7600 Relay Module is connected to the W7600 or W7601 to provide digital outputs. Local monitoring and programming of the W7600 is provided by the S7600 Keyboard Display Module. The Q7601 Setpoint Module is designed to allow setpoint control from a standard potentiometer rather than from the S7600.

Fig. 1-Typical W7600 VAV application.

Specifications

MODEL:
PM7600B-Network Compatible Variable Air Volume Program Module. Used with Network Compatible W7600A-F 2XXX Control Modules to provide modulating control of up to 12 stages of cooling, six stages of heating, economizer and fan.

TEMPERATURE RATINGS:
Ambient: -40° to 150° F [-40° to 66° C]
Shipping: -20° to 120° F [-29° to 49° C]

HUMIDITY RATING:
5-90 percent at 90° F [32° C] noncondensing.

MOUNTING: Plugs into socket on W7600A-F board.

PROGRAMMING: Programmed through S7600 Key board Display Module or IBM® PC with ZM7601 or ZM7603 Software version 1.48 or greater.

COMMUNICATION: Honeywell two-wire CNAP network. Used with a personal computer and ZM7603 Remote Monitoring Software to provide automated remote reporting.

SYSTEM COMPONENTS: The Network Compatible PM7600B Program Module is designated by the 2XXX suffix. Control Modules and accessories designed specifically to complement the operating system are listed below. Only those accessories listed are compatible with the Network Compatible PM7600B Program Module.

Product	Specification Form
W7600A 2007 Control Module	63-4307
W7600B 2005 Control Module
W7600D 2001 Control Module
W7600E 2008 Control Module (Other W7600A,B,D,E 2XXX Control Modules may exist and are also compatible.)
S7600A 2001 Keyboard Display Module (Other S7600A 2XXX Display Modules may exist and are also compatible.)	63-4308
Q7600G 1004 Communication Module	63-4274
Q7600G 2002 Communication Module
Q7600H 2000 Communication Module (Ext. Temp.)
Q7640B Network Interface Unit	63-4290
Q7640C Network Interface Unit	63-4304
W7601A 1008 Expansion Module (Series 2 or higher)	63-4063
W7601B 1006 Expansion Module (Series 2 or higher)
W7601A 2006 Expansion Module
W7601B 2004 Expansion Module
R7600A 1006 Relay Module	63-4059
Q7601A 1006 Setpoint Module	63-4061
T7660A-D Space Temperature Sensor	63-4219



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