Manufacturer: Johnson Controls |
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Description: ECONOMIZER LOGIC NETWORK
Category: Electrical Controls
N-1001 Economizer
Logic Network
Features
· Choice of O.A. Dry Bulb
Economizer, Differential
Temperature Economizer, or
Enthalpy Economizer cycles
· Compatible with all pneumatic
controllers and transmitters
· Hypodermic needle test
points on all inputs and
outputs
· “English Language”
connection identification
The N-1001 Economizer Logic
Network is a versatile
multipurpose pneumatic device
which provides a sequence of
logic functions to all types of
mixed air handling units. Based
on cooling demand, fan status,
and seasonal input conditions, the
N-1001 provides fan interlock and
minimum position control
features, as well as economizer
control and other auxiliary
switching strategies.
Operation
The N-1001 Economizer Logic
Network is used in conjunction
with a pneumatic controller to
provide mixed air economizer and
cooling control logic to an air
handling unit.
The N-1001 receives a controller
signal and either repeats the
signal or modifies it to provide
optimal control of mixed air
dampers and cooling apparatus.
The choice of either standard dry
bulb, differential temperature, or
enthalpy economizer is used to
determine the Summer or Winter
mode of O.A. damper operation.
The fan status determines
whether the dampers and cooling
apparatus are to be operational or
closed. An integral adjustable
minimum percent O.A. setting
provides ventilation.
Mounting
The N-1001 should be mounted in
an upright position using the
integral bracket and two #8 sheet
metal screws (field furnished).
The unit may be duct or panel
mounted; refer to Fig. 13 for
space requirements and
additional mounting details. All
pneumatic tubing connections
should be made with 1/4 in O.D.
polytubing.
Replaces Part Numbers: N-1001-1, CARN-1001-1