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10

CNT-SVX13B-E4

Features

Communication

For optimal system performance, fan
coil units can operate as part of an
Integrated Comfort™ System (ICS)
building automation. The ZN
controllers are linked directly via a
twisted shielded pair cable to the
Tracer Summit™ building control
unit which acts as a communication
server. Direct integration of ZN
controllers into Tracer Summit™
allows for a highly flexible system
and additional features.
As an example, master/slave
interactions can be easily established
according to floor layout and can be
modified when this layout change
with very little specific engineering
requirement. ZN controllers are fully
compliant with LonMark

®

specification and are LonMark

®

certified. This means they can easily
be integrated into any Lon network,
Lon compatible BMS and complies
with SCC profiles as to increase
interoperability capability. Their
mandatory and optional network
variables can then be accessed with
any standard LonMark

®

tool. The

configuration of the controller can be
done through the use of any
software tool matching EIA/CEA 860
standard plug ins.

Peer-to-peer communication

Tracer™ ZN. uses LON
communication interface type
FTT - 10A.
It allows peer-to-peer (also referred
to as master/slave) data
communication. Data such as zone
temperature, setpoint, and
occupancy can be shared from a
master control to a peer control with
or without the presence of Tracer
Summit™. This  communication
allows all units to operate with the
same data to prevent conflicts
between units (see figure 4). This
way of communication data between
devices is called "custom binding". 

For futher detail, refer to the official
documentation LonWorks

®

FTT-10A

free topology transceiver user's
guide and to the official LonWorks

®

guidelines LonMark

®

layer 1-6

interoperability guidelines version
3.0. These documents and additional
information are available on the
Internet site www.lonmark.org.

Condensate overflow (J2-3 & J2-4 on
the controller)

For UniTrane fancoils and HFO/HFR
ductable units, if a condensate pump
is used with the unit (not supplied by
Trane), it is possible to connect the
condensate overflow switch to the
controller through this binary input.
When the condensation reaches the
trip point, the condensate overflow
signal will generate a diagnostic that
disables fan operation, closing all
unit water valves (when present),
turning off the electric heater (when
present). Although the condensate
overflow automatically resets when
the condensation returns to a normal
level, the unit needs to be restarted
manually. The overflow switch has to
be wired directly on the controller
input BI 2.
The binary input is factory
configured to normally open (NO)
so:
If the contact is open 

Normal

unit operation
If the contact is closed 

Unit

shutdown (need a manual restart).
For CWS units, the condensate pump
is factory-mounted and connected to
the controller. In this case, the binary
input is factory-configured to
normally closed (NC) so:

If the contact is closed=normal unit
operation

If the contact is open=unit shutdown
(needs a manual restart)

Generic I/O (on the controller)

Tracer™ ZN. unit controller comes
equipped with three generic points
for use with a Tracer Summit™
system:
• Generic Binary Input (Shared with

occupancy) (J2-5/J2-6 on
mainboard)

• Generic Binary Output (TB4-1/TB4-2

on mainboard)

• Generic Analog Input (4-20mA,

humidity sensor, CO² sensor or
other) (J3-7/J3-8 on mainboard)

The two generic inputs are only for
passing information to the BAS
system. They do not have any effect
on the unit's operation. The generic
binary output is controlled from the
BAS system and its state is not
affected by unit operation, even
under a diagnostic shutdown.

Содержание ZN. LonWorks control

Страница 1: ...Installation Operation Maintenance and user guide Trane ZN LonWorks control for fan coil units and chilled water cassettes CWS CNT SVX13B E4...

Страница 2: ...y Warranty is based on the general terms and conditions of the constructor The warranty is void if the equipment is modified or repaired without the written approval of the constructor if the operatin...

Страница 3: ...unication 10 Zone sensor option 15 Zone sensor technical features 17 Default values 18 Data lists 19 Modulating valve package 20 Valve bodies 20 Installation Unit identification 23 Neuron identificati...

Страница 4: ...evel of comfort The controller is factory installed and pre commissioned resulting in a highly integrated product reduced installation and commissioning time The following configurations are supported...

Страница 5: ...resent are modulating in order to maintain the requested setpoint Occupied Standby or Economy only available in network BMS configuration Mode used to reduce the heating and cooling operation during t...

Страница 6: ...e Table 1 describes the combination of communication requests the hardwire input and the ON occupied CANCEL unoccupied push buttons on the zone sensor upon the occupancy state of the control Setpoint...

Страница 7: ...t s heating or cooling capacity 0 100 and drive the fan speed if auto and the valve position accordingly Sequence of operation Off Fan is off valves are closed Auto Fan speed control in the auto setti...

Страница 8: ...Valve position 3 100 Open 4 Cooling 5 High 6 Medium 7 Fan speed 8 Low 9 Heating 10 Cooling valve Figure 2 Example 2 pipe cooling 2 pipe heating 2 pipe changeover 4 pipe operation Figure 3 Example 2 p...

Страница 9: ...tion optional A 2 pipe changeover system that uses a two way control valve might not sense the correct entering water temperature during long periods when the control valve is closed This function per...

Страница 10: ...l LonWorks guidelines LonMark layer 1 6 interoperability guidelines version 3 0 These documents and additional information are available on the Internet site www lonmark org Condensate overflow J2 3 J...

Страница 11: ...e type of communication wire same characteristics wire Placing termination resistors LonWorks FTT 10A communication links require termination resistors To correctly place termination resistors follow...

Страница 12: ...Hz 5 5 4 0 MHz 11 8 0 MHz 15 10 0 MHz 17 16 0 MHz 22 20 0 MHz 24 Worst pair to pair near end crosstalk dB minimum Values are shown for information only The minimum NEXT coupling loss for any pair comb...

Страница 13: ...connected to the zone sensor and communicates data to slave B1 ZS Zone sensor M Master S Slave LON COMM BUS LON communication bus STP Setpoint 1 Maximum 1400 m with the use of 1 repeater 2 Maximum 60...

Страница 14: ...Ax Slave x zone A S Bx Slave x zone B ZA Zone A ZB Zone B 1 Maximum 1400 m with the use of 1 repeater 2 Maximum 60 devices 120 with 1 repeater Tracer Summit S A1 S A2 MA MB S B1 ZB ZA ZS ZS 1 2 Figur...

Страница 15: ...simplified option zone sensor TH02 A full option zone sensor TH01 Figure 7 Simplified option zone sensor TH02 Ref 35168531 001 1 2 3 4 External adjustable thumbwheel setpoint High Medium Low Auto Off...

Страница 16: ...ied mode Cancel override button High Medium Low Auto Off fan speed switch Built in air temperature sensor Internal communications jack for easy connection to the Rover Service tool RJ 11 type Drilling...

Страница 17: ...ng of the zone sensors Figure 9 Zone sensor only 1 Zone sensor 2 Communication link TH01 only 3 Factory wired 4 Occupancy window contact 5 Zone sensor temperature sensor 6 Communication BUS 7 Return a...

Страница 18: ...point 30 C Default occupied standby cooling setpoint 25 C Default occupied cooling setpoint 22 C Default occupied heating setpoint 20 C Default occupied standby heating setpoint 17 C Unoccupied heatin...

Страница 19: ...de nvoDischAirTemp SNVT_temp_p nviFanSpeedCmd SNVT_switch nvoTerminalLoad SNVT_lev_percent nviComprEnable SNVT_switch nvoSpaceRH SNVT_lev_percent nviAuxHeatEnable SNVT_switch nvoOutdoorTemp SNVT_temp_...

Страница 20: ...A Power 3 W Maximum stroke 8 mm Opening time 4 min Closing time 4 6 min depending on heating time Differential pressure 1 5 bar Ambient temperature 0 50 C Protection standard IP43 for vertical instal...

Страница 21: ...al pressure 2 5 bar M8450A1000 stroke 6 5mm V5833C1033t 1 2 kvs 1 6 Differential pressure 1 5 bar M8450A1000 stroke 6 5mm V9071X0015 1 2 kvs 1 0 Differential pressure 2 5 bar M8450A1000 stroke 6 5mm V...

Страница 22: ...20 001 V5833C1033 kvs 1 6 1 2 M8450A1000 6 5mm Normally closed 35168519 001 V5833C1025 kvs 1 6 1 2 M8450A1000 6 5mm 35168519 001 V5833C1025 kvs 1 6 1 2 M8450A1000 6 5mm 35168520 001 V5833C1033 kvs 1 6...

Страница 23: ...identification sticker with pictograms which clearly indicates important information such as the customer order number job name unit model size coil type presence of an electric heater motor type unit...

Страница 24: ...ver 2 way valve 2 pipe changeover 3 way valve 2 pipe changeover electric heater 2 way valve 2 pipe changeover electric heater 3 way valve 4 pipe Indicates customer order number max 25 alphanumeric cha...

Страница 25: ...pipe cooling electric heater 2 pipe changeover electric heater 4 pipe Figure 12 Neuron Identification Sticker Neuron identification In order to quickly identify the neuron ID of each unit on the job s...

Страница 26: ...enance department Warning If an electric heater is connected by an installer operation of the electric heater must be subordinated to operation of the fan Figure 13 Zone sensor only Figure 14 Zone sen...

Страница 27: ...1 pair 0 9mm capacitance 72 6pf m max maximum 60m Communication between units It is possible to connect several units together thanks to a communication bus For connection refer to Figure 16 Figure 1...

Страница 28: ...ied with the fuse disconnect switch Refer to the wiring diagrams supplied with the units for more information To connect main power supply refer to Figures 17 to 19 Figure 17 UniTrane HFO HFR without...

Страница 29: ...so used to indicate that the controller is in a manual test mode or wink mode Table 6 describes the different patterns Green LED activity Description LED is on continuously Power on normal operation L...

Страница 30: ...heTracer ZN 520 zone controller includes an automatic diagnostic reset function This function attempts to automatically recover a unit when the Low CoilTemperature Detection diagnostic occurs After th...

Страница 31: ...ycled between high speed and off with capacity Questionable unit operation Table 8 Fan outputs do not energize Probable cause Unit wiring Random start observed Unit configuration Power up control wait...

Страница 32: ...the outdoor air temperature is below the freeze avoidance setpoint the controller opens the water valves 100 to prevent coil freezing This includes unoccupied mode when there is no call for capacity...

Страница 33: ...Automatic fan speed variation LOW Low fan speed MED Medium fan speed HIGH High fan speed 2 Temperature setting 3 Occupied mode Timed Override 4 Unoccupied mode Cancel Override TH01 Trane reference 35...

Страница 34: ...Notes 34 CNT SVX13B E4...

Страница 35: ...Notes CNT SVX13B E4 35...

Страница 36: ...s www trane com For more information contact your local district office or e mail us at comfort trane com Trane has a policy of continuous product and product data improvement and reserves the right t...

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