Network Compatible PM7600B
Variable Air Volume Program
The PM7600B Program Module allows the
W7600 System to control discharge air tempera-
ture and static pressure in variable air volume air
handling applications by modulating, energizing
and de-energizing fan, heating and cooling stages.
For use with Network Compatible W7600A-F 2XXX
Control Modules only.
Provides programming of control parameters and
alarm annunciation through the S7600 Keyboard
Display Module.
Demand limit control function via setpoint bump.
Provides P+I+D control of discharge air temperature
and duct static pressure.
Controls up to twelve stages of cooling and six stages
of heating.
Controls up to four compressors.
Provides modulating control of heating, cooling, fan
and economizer.
Provides reset based on space, outdoor or return air
temperature.
Controls liquid line solenoid valves and compressor
unloaders.
Inputs and outputs are user selectable for customiz-
ing the W7600.
Automated remote reporting by using a personal
computer and ZM7603 Remote Monitoring Software.
Communicates on Honeywell 2-Wire CNAP
Network.
Digital outputs can be network controlled for light-
ing or start/stop control.
D.B. • Rev. 4-95 • © Honeywell Inc. 1995
Module for W7600
Uses economizer for free cooling.
Controls chilled water and/or condenser water pump.
Monitors compressor, heat, water flow, proof of
airflow and dirty filter safety switches.
Monitors discharge air, space air, outside air, and
condenser inlet water temperatures.
Return air fan control, modulating or floating, from
velocity or velocity pressure.
Innovative velocity pressure control algorithm for
optimum return air flow tracking control.
Indoor Air Quality (IAQ) input signal allows out-
door air damper minimum position to be reset.
Staged, floating or modulating control of preheat
coil provided in outside air duct.
CONTENTS
Operation .................................................... 32
Installation .................................................. 36
Programming .............................................. 38
Checkout ...................................................... 48
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63-4309-2
63-4309-2