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676292-YIM-A-0111

YCCS TEC2603-4 BACnet® MS/TP Networked Multi-Stage Thermostat Controllers Installation Instructions

1

Applications

The TEC2603-4 Thermostat Controller is a BACnet® 
Master-Slave/Token-Passing (MS/TP) networked 
device that provides control of multi-stage heating/
cooling equipment in York Commercial Comfort System 
(YCCS) applications. 

The TEC2603-4 Thermostat Controller features an 
intuitive User Interface (UI) with backlit display that 
makes setup quick and easy. The thermostat controller 
also employs a unique, Proportional-Integral (PI) 
time-proportioning algorithm that virtually eliminates 
temperature offset associated with traditional, 
differential-based thermostat controllers. 

North American Emissions Compliance

United States

Canada

Mounting

Location Considerations

Locate the TEC2603-4 Thermostat Controller:

on a partitioning wall, approximately 5 ft (1.5 m) 
above the floor in a location of average 
temperature

away from direct sunlight, radiant heat, outside 
walls, outside doors, air discharge grills, or 
stairwells, and from behind doors

away from steam or water pipes, warm air stacks, 
unconditioned areas (not heated or cooled), or 
sources of electrical interference

Note:

Allow for vertical air circulation to the 

TEC2603-4 Thermostat Controller.

Installation

To install the thermostat controller:

1.

Use a Phillips-head screwdriver to remove the 
security screw if it is installed on the bottom of the 
thermostat controller cover.

Note:

Normally, the security screw is packaged 

separately in a plastic bag with the thermostat 
controller. Skip this step if the screw is not installed 
on the bottom of the cover.

2.

Pull the bottom edge of the thermostat controller 
cover and open the thermostat controller as 
illustrated in Figure 1. 

IMPORTANT:

The TEC2603-4 Thermostat 

Controller is intended to provide an input to 
equipment under normal operating conditions. 
Where failure or malfunction of the thermostat 
controller could lead to personal injury or property 
damage to the controlled equipment or other 
property, additional precautions must be designed 
into the control system. Incorporate and maintain 
other devices, such as supervisory or alarm systems 
or safety or limit controls, intended to warn of or 
protect against failure or malfunction of the 
thermostat controller. 

This equipment has been tested and found to 
comply with the limits for a Class A digital device 
pursuant to Part 15 of the FCC Rules. These limits 
are designed to provide reasonable protection 
against harmful interference when this equipment is 
operated in a commercial environment. This 
equipment generates, uses, and can radiate radio 
frequency energy and, if not installed and used in 
accordance with the instruction manual, may cause 
harmful interference to radio communications. 
Operation of this equipment in a residential area is 
likely to cause harmful interference, in which case 
the user will be required to correct the interference 
at his/her own expense.

This Class (A) digital apparatus meets all the 
requirements of the Canadian Interference-Causing 
Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte 
toutes les exigences du Règlement sur le matériel 
brouilleur du Canada.

YCCS TEC2603-4 BACnet® MS/TP Networked Multi-Stage 

Thermostat Controllers

Installation Instructions

TEC2603-4

Содержание YCCS TEC2603-4 BACnet

Страница 1: ...ler Skip this step if the screw is not installed on the bottom of the cover 2 Pull the bottom edge of the thermostat controller cover and open the thermostat controller as illustrated in Figure 1 IMPO...

Страница 2: ...rs and avoid smaller 1 1 2 x 4 in 38 x 101 mm square or 3 x 2 in 76 x 51 mm boxes This procedure ensures you have enough space for cabling and end of line devices if needed Note For surface mount appl...

Страница 3: ...tat controller continue in a daisy chained fashion to the next YCCS System Bus device Note The bus wiring must be twisted pair lines Do not run the bus wiring in the same conduit as line voltage wirin...

Страница 4: ...ipment Transformer 24 VAC for Heating Stages Energizes on a Call for First Stage Heating Energizes on a Call for Second Stage Heating Auxiliary Output Digital Input 1 Filter Only Digital Input 2 Disab...

Страница 5: ...128 O N 24V COM 24V CO M COM J2 COM AI1 AI2 COM AI3 AI4 1 64 32 1 6 8 4 2 128 O N 24V COM 24V CO M Drain Wire Drain Wire Tape back Drain Wire Drain Wire Address 4 Address 6 Address 7 VAV Rooftop Unit...

Страница 6: ...AI 4 Monitored Contact To Temperature RH CO2 Sensor Building Pressure Light Sensor Refrigerant Sensor To 24VAC BO 3 BO 2 BO 1 BO 4 COM Monitored Contact To Scheduled Item 1 To Scheduled Item 2 To Sch...

Страница 7: ...NO key to decline a parameter change and to advance to the next menu item Use the MENU key to access the Main User Menu or to exit the menu see the Main User Menu section access the Installer Configu...

Страница 8: ...he configured password is required to proceed Use the UP DOWN arrow keys to enter the configured password then press the MENU key to proceed through the Installer Configuration Menu parameters 2 Once...

Страница 9: ...eadband between the heating and cooling setpoints Default 2 0 Deg F 1 0 Deg C Options 2 0 Deg F 3 0 Deg F 4 0 Deg F 1 0 Deg C 1 5 Deg C 2 0 Deg C Cooling Unocc Setpoint Sets the unoccupied cooling set...

Страница 10: ...removed and reapplied before any operation fan heating or cooling is authorized Also can be used to sequence the startup of multiple units in one location Default 10 0 sec Range 10 0 to 120 0 sec Fro...

Страница 11: ...ables the thermostat controller to activate the fan in response to a call for heating Fan del Fan delay extends fan operation after a heating or cooling cycle has ended Default off Note The fan delay...

Страница 12: ...the fan output is also disabled Requires that an outside air temperature sensor be installed and connected Default 120 F 49 C Range 15 F 26 C to 120 F 49 C adjustable in 5F 5C increments C lock Disabl...

Страница 13: ...ne where communication is unreliable partition disconnect and isolate a portion of the system Bus for testing purposes and test the Bus portion connected to the System Manager Correcting Physical Comm...

Страница 14: ...om Probable Causes Multiple Symptoms The baud rate may have been changed on some devices on the network but not all devices A download may be in progress There may be a fault at a device A repeater ma...

Страница 15: ...on Repair Information If the TEC2603 4 Thermostat Controller fails to operate within its specifications replace the unit For a replacement thermostat controller contact the nearest Johnson Controls re...

Страница 16: ...F 12 0 C to 100 0 F 38 0 C Accuracy Temperature 0 9F 0 5C at 70 0 F 21 0 C Typical Calibrated Minimum Deadband 2F 1C between Heating and Cooling Ambient Conditions Operating 32 to 122 F 0 to 50 C 95...

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