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Controller
Application
The LCBS Connect RTU Controller is designed to control constant volume air handling units,
specifically packaged roof top units (RTU) including heat pumps. It consists of a configurable
controller and a wall module which are connected via Sylk™ bus. The controllers are capable
of stand alone operation but optimal functional benefits are achieved when connected to the
LCBS Connect Honeywell Cloud.
Sylk™ Bus
Sylk is a two wire, polarity insensitive bus that provides both 18 Vdc power and communica-
tions between Sylk-enabled devices. Along with the LCBS Connect wall module, the LCBS
Connect controller can use UP TO FOUR additional Sylk devices for added control. Each
device will have a unique Sylk address (up to 16) and are configured using dip switches on the
back of each device.
Part Number
TR40
TR40-H
TR40-CO2
TR40-H-CO2
C7400S1000
The flexibility of Sylk allows for a number of wiring methods (Daisy Chain, Homerun, etc.). The
main consideration is around the maximum distance from a controller to an individual Sylk
device based on the wire sized used.
AWG
Single Twisted Pair, Non-Shielded,
18-22
24
Connections
The LCBS Connect controller is a configurable device with options to configure specific inputs
and outputs to fit the application needs. It can be configured through the local, wall module
display or from the LCBS Connect remote interface when connected to the LCBS Connect
gateway.
1
2
24VAC
POWER
24VAC
R
POWER
All manuals and user guides at all-guides.com
Description
Sylk Wall Module - Temperature
Sylk Wall Module – Temperature, Humidity
(Note: Counts as TWO Devices)
Sylk Wall Module – Temperature, CO
(Note: Counts as TWO Devices)
Sylk Wall Module – Temperature, Humidity, CO
(Note: Counts as TWO Devices)
Sylk Enthalpy Sensor – Temperature, Humidity
Stranded or Solid
400 feet (120 meters)
300 feet (100 meters)
THREE
ANALOG
OUTPUTS
3
4
5
6
7
8
LOCAL
SYLK BUS
NETWORK
WIRE COLOR-TO-TERMINAL ASSIGNMENTS
24VAC
C
W
COMMON
2
2
Standard Thermostat Wire (Non-Twisted),
Shielded or Non-Shielded, Stranded or
100 feet (30 meters)
100 feet (30 meters)
FOUR DIGITAL
SIX
INPUTS
UNIVERSAL
INPUTS
EIGHT RELAY OUTPUTS
HEATING
COOLING
Y
3
Sylk Address(es)
3, 4, 5, 6
3 only
3 only
3 only
8 (Outdoor Air),
9 (Return Air)
Solid
FAN
G
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