Trane Tracer UC400 Montage- und Bedienungsanleitung

SSAAFFEETTYY WWAARRNNIINNGG

Only qualified personnel should install and service the equipment The installation, starting up, and servicing of heating, ventilating, and air-conditioning

equipment can be hazardous and requires specific knowledge and training Improperly installed, adjusted or altered equipment by an unqualified person

could result in death or serious injury When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that

are attached to the equipment

April 2020 BBAASS--SSVVXX4488HH--EENN

Installation, Operation, and Maintenance

Tracer®UC400/UC400–B

Programmable Controllers

For Blower Coil, Fan Coil, and Unit Ventilator

Introduction

NNoottee:: Specific reference to either UC400 or UC400–B is made throughout this document. All

other content cited in this document about the UC400 is referred to as UUCC440000 CCoonnttrroolllleerr.

The UC400/UC400-B is a multi-purpose, programmable (or application-specific controller) that

provides direct-digital zone temperature control The controller can operate as a stand-alone

device or as part of a building automation system (BAS) Communication between the controller

and a BAS occurs on an open standard with inter-operable protocols used in Building

Automation and Control Networks (BACnet®) Programming is done by means of the Tracer® TU

service tool

This guide provides installation and configuration information for the UC400 Controller with

specific operation description for Blower Coil, Fan Coil, and Unit Ventilation

Refer to the Resource section for documentation related to concepts discussed throughout this

manual

This document and the information in it are the property of Trane, and may not be used or

reproduced in whole or in part without written permission Trane reserves the right to revise this

publication at any time, and to make changes to its content without obligation to notify any

person of such revision or change

Trademarks

All trademarks referenced in this document are the trademarks of their respective owners

Agency istings and Compliance

The European Union (EU) Declaration of Conformity is available from your local Trane® office

Revision History

Corrected Face/Bypass terminations in Figure 6, p 23 and Figure 12, p 29

BAS-SVX48H-EN 3

BACnet Protocol 6

BACnet® Testing Laboratory (BTL) Certification 6

Specifications and Dimensions 7

Device Connections 9

Additional Components 11

Water, Discharge, and Outdoor Air Temperature Sensors 11

Binary Input Switching Devices 11

Zone Temperature Sensors 11

Valve and Damper Actuators 12

Zone Humidity Sensor 12

CO2Sensor 12

Expansion Modules 12

Typical Applications and Terminations 13

Binary Inputs 14

BI1; Occupancy 14

BI2; Condensate Overflow 14

BI3; Low Coil Temp Detection 15

BI4; Frost Detection 15

BI5; Fan Status 15

Analog Inputs 15

Ground Terminals 15

AI1; Space Temperature 15

AI2; Space Temperature Local Setpoint 15

AI3; Local Fan Mode Input 16

AI4; Discharge Air Temperature Sensor 16

AI5; Entering Water Temperature 16

Universal Inputs 16

UI1; Relative Humidity or CO2Sensor 16

UI2; Outdoor Air Temperature 17

Binary Outputs 17

Override Outputs 17

Wiring Requirements 17

UC400 Wiring Diagrams 19

UC400–B Wiring Diagrams 25

Wiring Installation 31

Connecting Wires to Terminals 31

BACnet MS/TP Link 31

MAC Address 31

BACnet Device ID 31

Table of Contents

4BAS-SVX48H-EN

BACnet Networks, With or Without Tracer SC Controller 31

Without a Tracer SC Controller 31

With a Tracer SC Controller 31

BACnet MS/TP Link Wiring 32

Power Supply 33

Transformer Recommendations 33

Wiring Requirements 33

Connecting 24 Vac Secondary Wires 34

Power On Check 35

LED Description, Activities, and Troubleshooting 36

Sequence of Operation 39

Power-up Sequence 39

Random Start 39

Occupancy Modes 39

Occupied Mode 39

Unoccupied Mode 40

Occupied Standby Mode 40

Occupied Bypass Mode 40

Timed Override Control 40

Zone Temperature Control 40

Discharge Air Tempering 42

Heating or Cooling Mode 42

Auto-Changeover Entering Water Temperature Sampling Function 42

Fan Operation 43

Manual Fan Speed Control 43

Auto Fan Operation; 1–, 2–, 3–Speed 43

Single Zone VAV 43

Exhaust Control 44

Valve Operation 45

Modulating Valve Operation 45

3–Wire Floating Point Valve Calibration 45

2–Position Valve Operation 45

Face/Bypass Damper Operation 45

Modulating Outdoor/Return Air Damper 45

ASHRAE Cycle 1 Conformance 46

ASHRAE Cycle 2 Conformance 46

Economizing (Free Cooling) 47

Outdoor Air Damper Control With Varying Fan Speed 47

CO2-Based Demand Controlled Ventilation 48

Fan Operating at Multiple Speeds or Single-Zone VAV Control 48

DX Cooling Operation, 1 or 2 Circuits 49

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BAS-SVX48H-EN 5

Heat Pump Operation, 1 or 2 Circuits 50

Defrost Operation 50

Electric Heat Operation 50

Dehumidification Operation 50

Unit Protection Strategies 51

Smart Reset 51

Low Coil Temperature Protection 51

Condensate Overflow 51

Fan Status 51

Fan Off Delay 52

Filter Maintenance Timer 52

Freeze Avoidance 52

Freeze Protection, Discharge Air Temperature Low Limit 52

Output Testing 53

Diagnostics 53

Diagnostic Types 53

Diagnostic Generated by the UC400 54

Operational Causes and Diagnostics 57

Configuration and Maintenance 60

Settings for CO2-Based Demand Controlled Ventilation 63

Resources 67

TTaabbllee ooff CCoonntteennttss

6BAS-SVX48H-EN

BACnet Protocol

The Building Automation and Control Network (BACnet®) protocol is ANSI/ASHRAE Standard

135 This standard allows building automation systems or components from different

manufacturers to share information and control functions BACnet® provides building owners

the capability to connect various types of building control systems or subsystems together for

many uses Multiple vendors can use this protocol to share information for monitoring and

supervisory control between systems and devices in a multi-vendor interconnected system The

BACnet® protocol defines standard objects (data points) called BACnet® objects Each object has

a defined list of properties that provide context information about that object In addition,

BACnet® defines a number of application services that are used to interact with objects in a

BACnet® device

BACnet®Testing aboratory (BT ) Certification

The UC400 Controller supports the BACnet communication protocol and has been designed to

meet the requirements of the application-specific control profile For more details, refer to the

BTL web site at www bacnetinternational org The UC400 Controller supports the following

equipment when used as an application-specific unit:

• Blower Coils

• Fan Coils

• Unit Ventilators

• WSHP (Variable Speed)

• VAV

BAS-SVX48H-EN 7

Specifications and Dimensions

Table 1. UC400/UC400–B Specifications

Storage

Temperature: –48°F to 203°F (–44°C to 95°C)

Relative Humidity: Between 5% and 95% (non-condensing)

Operating

Temperature: –40°F to 158°F (–40°C to 70°C)

Humidity: Between 5% and 95% (non-condensing)

Input Power: 20.4–27.6 Vac (24, ±15% nominal), 50Hz to 60Hz, 24 VA

(24 VA plus binary output loads for a maximum of 12 VA for each binary output)

Mounting Weight of

Controller:

Supporting mounting surface: must be 0.80 lb. (.364 kg)

Environmental Rating

(Enclosure):

NEMA 1

Altitude: 6,500 ft. maximum (1,981 m)

Installation: U.L. 840: Category 3

Pollution: U.L. 840: Degree 2

Housing Material:(a) Polycarbonate/ABS Blend

UV protected

U.L. 94-5VA flammability rating

Mounting: UC400: Mounts on EN 50 022 - 35 X 15 DIN rail.

UC400–B: Pre-mounted.

Agency Listing

UL916 PAZX, Open Energy Management Equipment

UL94-5V, Flammability

CE Marked

FCC Part 15, Subpart B, Class B Limit

AS/NZS CISPR 22:2006

VCCI V-3/2008.04

ICES-003, Issue 4:2004

Communications BACnet®MS/TP, supports BACnet Protocol ASHRAE 135-2004 and Meets BACnet Testing Laboratory (BTL) as an Application

Specific Controller (ASC) Profile Device

(a) Not applicable for the UC400-B model.

8BAS-SVX48H-EN

Figure 1. UC400 and UC400–B Dimensions

5.65 in. (143.5 mm)

(*8 Units)

4.00 in.

(101.6 mm)

2.37 in. (60.1 mm)

*DIN Standard 43 880, Built-in Equipment for Electrical Installation. Overall Dimensions and Related Mounting Dimensions.

1.89 in. (48 mm)

1.79 in. (45.4 mm)

14 Pin AMP

BO4

BO5

24VAC

GND

BO6

BO7

BI2

BI3

AI5

GND

24VAC

GND

14 13 12 11 10 9 8 7 6 5 4 3 2 1

USB

J10

3 Pin

Mini

AMP

Service

J18

3 Pin

Mini

AMP

BO7

24VAC

J14 - JST

BO6

Address

AIP4

GND

4 Pin Phoenix

24VAC

GND

24VAC

GND

24VAC

GND

J15 J17

PI1 PI2

BO9

GND

24VAC

BO8

J16

BO1

24VAC

BO2

24VAC

BO3

24VAC

AMP

Phoenix

PhoenixPhoenix

24VDC

GND

Comm +

Comm -

5 pin Phoenix

BACnet

4 Pin Phoenix

J13

AIP3

GND

AIP2

24VAC

AIP1

GND

6 pin Phoenix

AOP2

GND

Phoenix

AOP1

GND

Phoenix

+ - + -

IMC

J12 - AMP

J11 - AMP

BI1

Phoenix

UIP1

GND

UIP2

GND

24VDC

-Gnd 24VDC

1 2 3 4 5 6 1 2 3 4 5 6 123 4

123 4 12 3 4

1 2 3

345

2 1

6.125 in. (155.58 mm)

4.500 in.

(114.30 mm)

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BAS-SVX48H-EN 9

Device Connections

The following table provides details of the hardware termination configuration options The

hardware terminations are pre-configured for proper equipment operation for blower coil/fan coil

applications

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Table 2. Connections

Connection Quantity Types Range Notes

Analog input

(AI1 to AI5) 5

Temperature 10 kΩ thermistor

AI1 to AI4 can be configured for timed override capability.

Setpoint 189 Ω to 889 Ω

Resistive 100 Ω to 100 kΩ Typically used for fan speed switch.

Universal input

(UI1 and UI2) 2

Linear 0–20 mA

These inputs may be configured to be thermistor or resistive

inputs, 0–10 Vdc inputs, or 0–20 mA inputs.

Linear 0–10 Vdc

Temperature 10 kΩ thermistor

Setpoint 189 Ω to 889 Ω

Resistive 100 Ω to 100 kΩ

Binary Open collector/dry contact Low impedance relay contacts recommended.

Pulse Solid state open collector Minimum dwell time is 25 milliseconds On and 25 milliseconds

Off.

Binary input

(BI1 to BI3)(a) 324 Vac detect The UC400 controller provides the 24 Vac required to drive the

binary inputs when using the recommended connections.

Binary output

(BO1 to BO3)

(a)

3UC400:Relay

• 2.88 A @24 Vac C pilot

duty

• Gen Purpose

–10 A max up 277 Vac

–10 A max up to 30 Vdc

• Motor Duty

–1/3 hp @ 125 VAC

(7.5 A max)

–1/2 hp @ 277 VAC

(7.5 A max)

Power needs to be wired to the binary output. All outputs are

isolated from each other and from ground or power.

Note: Ranges given are per contact.

Other

Ranges UC400–B:TRIAC 24 Vac Powered

Binary output

(BO4 to BO9)(a) 6 TRIAC

•UC400: 0.5 A max @24-

277 Vac, resistive and pilot

duty

•UC400–B: 24 Vac

Powered

Use for modulating TRIAC. User determines whether closing high

side (providing voltage to the grounded load) or low side

(providing ground to the power load).

Note: Ranges given are per contact and power comes from

TRIAC SUPPLY circuit.

10 BAS-SVX48H-EN

Table 2. Connections (continued)

Connection Quantity Types Range Notes

Analog output/

binary input

(AO1/BI4 and

AO2/BI5)

Linear output 0–20 mA

Each termination must be configured as either an analog output

or binary input.

Linear output 0–10 Vdc

Binary input Dry contact

PWM output 80 Hz signal @ 15 Vdc

Pressure inputs

(PI1 and PI2) 2

3-wire 0–5 in H2O•UC400: Pressure inputs supplied with 5 volts of power.

Designed for Kavlico™ pressure transducers.

•UC400–B: Used as a binary input for condensate on WSHP.

Overall Point

Total 23

(a) Do Not mix Class 1 and Class 2 voltage wiring in an enclosure or on a controller without an approved barrier between the wiring.

DDeevviiccee CCoonnnneeccttiioonnss

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