Filter
Top Products
6 SCXG-SVX01B-EN
Installation
Control Options
Units may be ordered with either
conventional thermostat interface or
IntelliPak
TM
Direct Digital Control (DDC).
IntelliPak
TM
controls include a Human
Interface (HI) panel with two line by forty
(40) character clear English display for
easy operator interface to unit setup and
control parameters. All basic setup
parameters are preset from the factory.
Human Interface Panel
The HI is unit mounted and accessible
without opening the unit’s front panel. It
allows easy setpoint adjustment using
the HI keypad. In addition, the HI displays
all unit operating parameters and
conditions in a clear language display,
which can be configured for either
English, French, or Spanish.
The optional remote human interface
(RHI) will control up to four self-contained
units, each containing an interprocessor
communications bridge (IPCB). It has all
the same features as the unit-mounted HI
except for the service mode.
For more information on setpoint defaults
and ranges and unit programming, see
the
IntelliPak Self-Contained Program-
ming Guide, PKG-SVP01B-EN
. A copy
ships with each unit.
IntelliPak
TM
DDC Control
IntelliPak
TM
DDC Control provides “smart”
unit control with safety features and
control relays for pumps, dampers, etc.
The Modular Series IntelliPak self-
contained unit is controlled by a
microelectronic control system that
consists of a network of modules. These
modules are referred to as unit control
modules (UCM). In this manual, the
acronym UCM refers to the entire control
general
information
system network.
These modules perform specific unit
functions using proportional/integral
control algorithms. They are mounted in
the unit control panel and are factory
wired to their respective internal compo-
nents. Each module receives and
interprets information from other unit
modules, sensors, remote panels, and
customer binary contacts to satisfy the
applicable request; i.e., economizing,
mechanical cooling, heating, ventilation.
See the Operation section of this manual
for a detailed description of each
module’s function.
Optional Controls
Optional controls include a disconnect
switch, dirty filter switch, water flow
switch (water-cooled only), supply air
temperature reset, or external setpoint
inputs. Daytime heating is available on
units with electric, steam, or hot water
heat control options. Morning warmup
operation is available on all units.
The static pressure probe, zone night
heat/morning warmup, supply air
temperature reset sensor options ship
separate inside the unit control panel for
field installation. For more detailed
information on the unit control options,
see the Owner’s section of this manual.
Unit Nameplate
The unit nameplate identifies the unit
model number, appropriate service
literature, and wiring diagram numbers. It
is mounted on the left end of the unit
control panel.