Trane CO2 Sensing Kit User manual

Brand: Trane

Model: CO2 Sensing Kit

Type: User manual

SAFETY WARNING

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.

132

4 5 6

Installation Instructions

CO2 Sensing Kit

6 to 25 Ton Packaged Units with Symbio™ 700

Controls

Model Number: Used With:

FIACO2K001* Precedent™ with wall mount sensor

FIACO2K002** Precedent™ with duct mount CO2 sensor

Warnings, Cautions, and Notices

Read this manual thoroughly before operating or servicing this unit. Safety

advisories appear throughout this manual as required. Your personal safety and

the proper operation of this machine depend upon the strict observance of these

precautions.

Important Environmental Concerns

Scientific research has shown that certain man-made chemicals can affect the

earth’s naturally occurring stratospheric ozone layer when released to the

atmosphere. In particular, several of the identified chemicals that may affect the

ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs)

and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all

refrigerants containing these compounds have the same potential impact to the

environment. Trane advocates the responsible handling of all refrigerants-

including industry replacements for CFCs such as HCFCs and HFCs.

Important Responsible Refrigerant Practices

Trane believes that responsible refrigerant practices are important to the

environment, our customers, and the air conditioning industry. All technicians

who handle refrigerants must be certified according to local rules. For the USA,

the Federal Clean Air Act (Section 608) sets forth the requirements for handling,

reclaiming, recovering and recycling of certain refrigerants and the equipment

that is used in these service procedures. In addition, some states or

municipalities may have additional requirements that must also be adhered to for

responsible management of refrigerants. Know the applicable laws and follow

them.

The three types of advisories are defined as follows:

WARNING Indicates a potentially hazardous situation which, if

not avoided, could result in death or serious injury.

CAUTION Indicates a potentially hazardous situation which, if

not avoided, could result in minor or moderate injury.

It could also be used to alert against unsafe practices.

NOTICE Indicates a situation that could result in equipment or

property-damage only accidents.

WARNING

Proper Field Wiring and Grounding Required!

Failure to follow code could result in death or serious injury. All field wiring

MUST be performed by qualified personnel. Improperly installed and grounded

field wiring poses FIRE and ELECTROCUTION hazards. To avoid these

hazards, you MUST follow requirements for field wiring installation and

grounding as described in NEC and your local/state/national electrical codes.

WARNING

Personal Protective Equipment (PPE) Required!

Failure to wear proper PPE for the job being undertaken could result in death

or serious injury. Technicians, in order to protect themselves from potential

electrical, mechanical, and chemical hazards, MUST follow precautions in this

manual and on the tags, stickers, and labels, as well as the instructions below:

• Before installing/servicing this unit, technicians MUST put on all PPE

required for the work being undertaken (Examples; cut resistant

gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall

protection, electrical PPE and arc flash clothing). ALWAYS refer to

appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.

• When working with or around hazardous chemicals, ALWAYS refer to the

appropriate SDS and OSHA/GHS (Global Harmonized System of

Classification and Labeling of Chemicals) guidelines for information on

allowable personal exposure levels, proper respiratory protection and

handling instructions.

• If there is a risk of energized electrical contact, arc, or flash, technicians

MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-

specific requirements for arc flash protection, PRIOR to servicing the unit.

NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE

TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH

CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE

PROPERLY RATED FOR INTENDED VOLTAGE.

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.

General

Note: An economizer must be installed and functional before attempting to install

a CO2 sensing kit.

These sensors detect and control the carbon dioxide level in the conditioned

space by measuring CO2 concentration, comparing it with a user-adjustable set

point and sending a corresponding control signal to the economizer module.

This causes the economizer damper to be positioned so that sufficient fresh air

is introduced into the conditioned space to reduce and maintain the CO2

concentration to a minimum level as selected by the user.

WARNING

Follow EHS Policies!

Failure to follow instructions below could result in death or serious injury.

• All Trane personnel must follow the company’s Environmental, Health and

Safety (EHS) policies when performing work such as hot work, electrical, fall

protection, lockout/tagout, refrigerant handling, etc. Where local

regulations are more stringent than these policies, those regulations

supersede these policies.

• Non-Trane personnel should always follow local regulations.

Inspection

1. Unpack all components of the kit.

2. Check carefully for shipping damage. If any damage is found, report it

immediately, and file a claim against the transportation company.

3. Visually inspect the components for shipping damage as soon as possible

after delivery, before it is stored. Concealed damage must be reported within

15 days.

4. If concealed damage is discovered, stop unpacking the shipment.

5. Do not remove damaged material from the receiving location. Take photos of

the damage, if possible. The owner must provide reasonable evidence that

the damage did not occur after delivery.

6. Notify the carrier’s terminal of damage immediately by phone and by mail.

Request an immediate joint inspection of the damage by the carrier and the

consignee.

Note: Do not attempt to repair any damaged parts until the parts are inspected

by the carrier’s representative.

Parts List

CO2 Sensor:

FIACO2K001*

• One (1) CO2 Demand-Controlled Ventilation Wall-Sensor (4190 4100) with

instructions and mounting hardware.

FIACO2K002*

•One (1) CO

2 Demand-Controlled Ventilation Duct -Sensor (4190 4101) with

instructions and mounting hardware.

• One (1) “CO2 Kit Has Been Installed” Label

Installation

1. Apply provided CO2 and ventilation override wiring diagram label next to the

main unit wiring diagram label, located on compressor access panel.

2. Apply “CO2 kit Has Been Installed” label next to the main unit wiring diagram

label.

3. Install CO2 sensor in conditioned space or return air duct according to

instructions packed with the sensor.

4. Make field wiring connections to Symbio™ 700 UC J22 pins 1-3. Refer to main

unit schematic sheet 3 and in this guide.

5. Route low voltage external field wiring along with and secure to existing low

voltage zone sensor or thermostat wiring.

6. Replace any access panels removed for kit installation.

WARNING

Hazardous Voltage w/Capacitors!

Failure to disconnect power and discharge capacitors before servicing could

result in death or serious injury.

Disconnect all electric power, including remote disconnects and discharge all

motor start/run capacitors before servicing. Follow proper lockout/ tagout

procedures to ensure the power cannot be inadvertently energized. Verify with a

CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

CO2 Sensor Operation for Symbio™ 700 with Economizer

Demand Control Ventilation (DCV)

DCV eliminates over-ventilating the space by allowing the fresh air damper to close further than non-CO2 sensing systems, which reduces power consumption. DCV

adjusts the fresh air damper between a DCV Minimum Position and Design Minimum Position. DCV Minimum Position equals non-CO2 sensing systems minimum

damper position - 10%, or more, down to 0% open.

When the CO2 level is greater than or equal to the DCV Minimum CO2 setpoint the supply fan is energized and the fresh air damper modulates between the DCV

Minimum Position Setpoint and the Design Minimum Setpoint, increasing the amount of outdoor air flow and reducing the CO2 level in the space. The damper will only

open up to the Design Minimum Position Setpoint. If the CO2 level drops below the DCV Minimum CO2 Setpoint - 50ppm the fresh air damper will drive to the DCV

Minimum Position. If CO2 level rises above the Building CO2 setpoint the fresh air damper will open to the Design Minimum Position setpoint.

DCV Setup, Damper Position and CO2 Setpoint

Before beginning, turn the fan ON and conduct the Minimum Position Setpoint procedure used WITHOUT CO2 to obtain and record visually the Minimum Position Setpoint

setting and/or the corresponding DC voltage settings for the min and max required to meet ASHRAE standards.

August 2022 ACC-SVN248A-EN

Trane and American Standard have a policy of continuous product and product data improvement and reserve the

right to change design and specifications without notice. We are committed to using environmentally conscious print

practices.

Trane and American Standard create comfortable, energy efficient indoor environments for commercial

and residential applications. For more information, please visit trane.com or americanstandardair.com.

CONDUCTOR NAME CONDUCTOR BASE COLOR CONDUCTOR TRACER COLOR

1BLACK

2RED

3 BLUE

4 ORANGE

5 YELLOW

6BROWN

7 RED BLACK

8 BLUE BLACK

9 ORANGE BLACK

10 YELLOW BLACK

11 BROWN BLACK

12 BLACK RED

13 BLUE RED

14 ORANGE RED

15 YELLOW RED

16 BROWN RED

17 BLACK BLUE

18 RED BLUE

19 ORANGE BLUE

20 YELLOW BLUE

21 BROWN BLUE

22 BLACK ORANGE

23 RED ORANGE

24 BLUE ORANGE

25 YELLOW ORANGE

26 BROWN ORANGE

LEGEND

REF DES DESCRIPTION LINE NO

DAT SENSOR - DISCHARGE AIR 122

FOS SWITCH - FROSTAT 124

LPC1 SWITCH - LOW PRESSURE 1 156

OAS SENSOR - OUTDOOR AIR 122

UC MODULE - UNIT CONTROLLER 143

PPM19

PPM177

PPM150

R/BK

BL/BK

O/BK

Y/BK

BR/BK

BK/R

PPM116

OBL BK R BL O BK R BK R BL O

IMC-1

PPF150

PPM50

PPF132

PPM32

J14

J15

J21

PPF117

PPF116

PPM117

DAT

OAS

LPC1

FOS

SYMBIO 700

MODBUS +

MODBUS -

COMMON

24 VAC OUT

IMC+

IMC-

24 VAC IN

COMMON

24 VAC OUT

24VAC OUT

PHASE MONITOR IN

CONTROL VOLTAGE IN

INDOOR FAN RUN

INDOOR FAN HI SPEED

24 VAC IN

COMMON

CONDENSER FAN1

COMMON

CONTROL 24 VAC IN

CONTROL 24 VAC OUT

CIRCUIT 1 PROVING IN

COMPRESSOR 1 24 VAC IN

COMPRESSOR 1 RUN

COMPRESSOR 1 UNLOADER/CCH

CONTROL VOLTAGE IN

CONTROL VOLTAGE OUT

CONTROL 2 PROVING IN

COMPRESSOR 2 24 VAC IN

COMPRESSOR 2 RUN

COMPRESSOR 2 UNLOADER/CCH

CONTROL 24 VAC IN

CONTROL 24 VAC OUT

CIRCUIT 3 PROVING IN

COMPRESSOR 3 24 VAC IN

COMPRESSOR 3 RUN

COMPRESSOR 3 UNLOADER/CCH

SOV1 OUT

COMMON

SOV2 OUT

COMMON

ECM CONDENSER FAN CONTROL

DISCHARGE AIR TEMP

OUTDOOR AIRTEMP

COIL TEMP 1

COIL TEMP 2

COIL TEMP 3

CIRCUIT 1 DISABLE

CIRCUIT 2 DISABLE

CIRCUIT 3 DISABLE

DEMAND LIMIT/SHED

24 VAC OUT

24 VDC OUT

COMMON

SPACE HUMIDITY

COMMON

CO2 IN

24 VDC OUT

24 VAC OUT

LOCAL OCCUPANCY

24 VAC OUT

EMERGENCY STOP

ACNET IN+

ACNET IN-

ACNET OUT+

ACNET OUT-

ZONE TEMP

COMMON

COOLING SET POINT

UNIT MODE

HEATING SET POINT

COMMON

24 VAC OUT

T-STAT Y1

T-STAT W1/0

T-STAT G/VAV CHANGEOVER

T-STAT W2

T-STAT Y2

T-STATX2

T-STAT PULLDOWN-T

T-STAT GND

24 VAC OUT

COMMON

IMC+

IMC-

24 VAC OUT

COMMON

IMC+

IMC-

24 VAC OUT

COMMON

IMC+

IMC-

CONTROL VOLTAGE IN

TRACER TU

ETHERNET

HOST PORT

CONDENSER FAN2

COMMON

CONDENSER FAN3

COMMON

ETH

USB-B

USB-A

WHITE

GREEN

WHITE

BLACK

P14

PINK

P15

LT BLUE

P15

PURPLE

P17

YELLOW

P18

GRAY

P19

RED

P20

BROWN

P21

GREEN

J16

GREEN

WHITE

BLACK

RED

WHITE

P10

BLUE

P11

WHITE

P12

BLACK

J17

GREEN

J18

GREEN

J19

GREEN

J20

GREEN

J21

GREEN

J22

GREEN

J23

GREEN

OEXPANSION MODULE

SHEET 4

AB-J18

MODBUS-1

SHEET 2

-H

THERMOSTAT CO2 SENSOR

OPTIONAL REMOTE SENSOR

ZONE SENSOR

TO LINE 72

(UC)

TO LINE 210 TO LINE 484

SHEET 9

XM30/XM32

TO LINE 49

SHEET 1

PPM72

TO LINE 250

SHEET 5

IOM-J5

TO LINE 72

SHEET 2

MODBUS-1

TO LINE 224

SHEET 4

AB-J17

SHEET 1

TO LINE 49

PPM72

TO LINE 224

SHEET 4

AB-J17

TO LINE 224

SHEET 4

AB-J17

TO LINE 224

SHEET 4

AB-J17

BUILDING

AUTOMATION

SYSTEM

OPTIONAL LCI

MODULE

TO SHUT DOWN UNIT FOR EMERGENCY STOP, CONNECT FIELD SUPPLIED CONTROL

DEVICE ACROSS PINS 1 & 2. UNIT STOPS WHEN SWITCH CLOSES.

DISCHARGE AIR TEMPERATURE SENSOR (DAT)

STANDARD ON UNITS WITH SZVAV & MZVAV.

EXTENSION HARNESS NOT PRESENT ON 15-25T UNITS.

J19

1234123 123

PPF19

123456

PPF32

PPF77

PPF50

12341212341234

PPM77

PPF177

1212

PPM132

123 123123456789121234567121234

1234

1234567

123456789 123

1234567

123 1234 1234 1234 1234 12 12 123 1234

1234 12 1234567 12 123456789 123 123

J22 Connector

ACC-SVN248A-EN 29 Aug 2022

(NEW)

Trane CO2 Sensing Kit User manual

Trane CO2 Sensing Kit User manual

Trane CO2 Sensing Kit User manual

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