Johnson Controls METASYS TEC1100 Series, METASYS TEC1103, METASYS TEC1102, METASYS TEC1101 Technical Bulletin

ECHNICAL BULLETIN

TEC1100 Series Thermostat

Issue Date August 8, 2002

Introduction

Description

In this document, Building Automation System (BAS) is a generic term that refers to the Metasys® Network (Network Control Module [NCM] or N30 series), Companion, and Facilitator® supervisory systems. When you refer to system specific applications, use the specific system names.

The TEC1100 Series includes three nonprogrammable models: single-stage (TEC1101), heat pump (TEC1102), and multistage (TEC1103). The applications include furnace, air conditioner, heat pump, and rooftop units. The TEC1100 incorporates fuzzy logic for precise control in a thermostat type package.

All TEC1100s have Metasys N2 communication capability. This communication allows the user to view and adjust parameters from a remote workstation. It also provides information, such as outdoor air temperature, to the TEC1100 units on the bus. The thermostat is easy to operate and normally displays room temperature and mode of operation using Cooling ( ) or Heating ( ) icons. When there is a call for cooling, the Snowflake icon ( ) blinks. Likewise, during a call for heating, the Flame icon ( ) blinks. When the temperature is satisfied, neither icon blinks. In the Auto mode, both icons ( ) appear continuously when satisfied. Light-Emitting Diodes (LEDs) on the top of TEC1102/1103 models use Binary Inputs (BIs) to indicate a clogged filter and external service. A unique temperature alarm (BI 2) indicates that the zone temperature has not been satisfied in 45 minutes.

Part No. 24-8980-2, Rev. A www.johnsoncontrols.com Code No. LIT-6363155

Used to select Heating, Auto, Off, or Emergency Heat (E ht; available on TEC1102 only) mode of operation.

Cooling,

Used to run fan continuously.

LEDs (TEC1102, TEC1103 only) indicate system activity or problems (see Table 3).

Mode

Fan

Figure 1: TEC1100

Outdoor

Day/Night

Tec1100face

Used to display outside temperature (optional).

Used to alternate between

day and night setpoints. Timed Occupied mode when keyboard locked.

Used to increase/decrease values or change between C or F.°°

2 TEC1100 Series Thermostat Technical Bulletin

Table 1: Specifications

Product TEC1101-1 Thermostat with N2 Bus, 1 Heat/1 Cool

TEC1102-1 Thermostat with N2 Bus, Heat Pump

TEC1103-1 Thermostat with N2 Bus, 2 Heat/2 Cool

Power Requirements

Relay Contact Rating

Binary Inputs (LED 1, LED 2, CLK1)

Recommended Wire Size

Thermostat Measurement Range

Outdoor Air Temperature Indication Range

Control Range

Display Resolution

Minimum Deadband

°C/°F Conversion

N2 Communications

Ambient Operating Conditions

Ambient Storage Temperatures

Dimensions (H x W x D)

Shipping Weight

UL and cUL Listing

CE Compliance

FCC Compliance

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

This device complies with Class A Part 15 of the FCC rules. It was also verified to Class B. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation.

This Class A digital apparatus meets all of the requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.

20-30 VAC, 50-60 Hz, Class 2, 24 VAC nominal, 2.4 VA maximum not including driven loads

Maximum Inductive: 1 ampere with surges to 3 amperes, 24 VAC Class 2 Maximum Resistive: 1 ampere, 24 VDC (2000 VA maximum for all outputs) Minimum: 10 mA for 24 VAC circuit; 10 mA for a 24 VDC circuit

20-30 VAC or 22-30 VDC (Negative on 24 V [C] terminal). Switches at 2 VDC.

18 gauge at 100 feet/22 gauge at 20 feet

0 to 48°C (28 to 124°F)

-48 to 48°C (-50 to 124°F)

Heating: 5 to 30°C in 1° increments (38 to 88°F in 1° increments) Cooling:16 to 40°C in 1° increments (60 to 88°F in 1° increments)

1°C (1°F)

1°C (2°F) (between heating and cooling)

20°C = 68°F, each Celsius degree above or below 20°C is 2°F

Isolated bidirectional, RS-485, 9600 baud

0 to 55°C (32 to 131°F); 5 to 90% RH noncondensing

-34 to 55°C (-30 to 131°F)

114.3 x 101.6 x 22.2 mm (4-1/2 x 4 x 7/8 in.)

0.171 kg (0.37 lb)

UL 873 Multiple Class 2 Device, UL94HB Plastic Enclosure

CISPR 22, Residential Class B, CE Directive (89/336/EEC, EN50081/1, EN50082/2) Industrial and Residential

This equipment has been tested and found to comply with the limits for a Class A digital device and verified to Class B pursuant to Part 15 of 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 is required to correct the interference at his/her own expense.

TEC1100 Series Thermostat Technical Bulletin 3

Table 2: TEC1100 Series Accessory Ordering Information

Item Product Code Number

Optional Accessories (includes mounting hardware)

Replacement Door for nonprogrammable thermostat (10/box) TEC10DOOR-NONPROG

Remote or Averaging Indoor Temperature Sensor SEN-500-1*

Outdoor Air Sensor with Outdoor Air Temperature Communication Module SEN-500-2**

Duct Mounted Outdoor Air Sensor with Outdoor Air Temperature Communication Module

4- to 5-wire Conversion Module ACC-500-1***

Thermostat Wall Plate to conceal existing holes ACC-500-2****

Replacement Parts

Replacement Outdoor Air Temperature Communication Module SEN-500-603

Replacement Outdoor Air Temperature Sensor (includes mounting hardware) SEN-500-604

Replacement Duct Mount Outdoor Air Temperature Sensor (includes mounting hardware)

Repair Parts

3 in. Sensor Probe (use with outdoor air sensor) SEN-500-601

8 in. Sensor Probe (use with duct-mount outdoor air sensor) SEN-500-602

* See SEN-500-1 Remote Indoor Temperature Sensor Product/Technical Bulletin (LIT-216504).

** See SEN-500-2 and SEN-500-3 Outdoor Air Temperature Sensors Product/Technical Bulletin

(LIT-216179).

*** See ACC-500-1 Conversion Module Product/Technical Bulletin (LIT-216500).

**** See ACC-500-2 Thermostat Wall Plate Product/Technical Bulletin (LIT-216502).

SEN-500-3**

SEN-500-605

Table 3: Alarm Indicators (TEC1102 Heat Pump and TEC1103 Multistage)

LED Position Function BI

Right (

Center (no symbol)

Left ( )

Temperature Alarm (no LED)

Note: Either binary input (LED 1 or LED 2) can be used as a fan-proving switch for other applications.

Indicates a fault. Controlled by external switch on LED 2, which displays a

)

wrench icon and reports Change-of-State (COS) to the Metasys system and causes the Network Dial Modem (NDM) to dial out.

(TEC1102 heat pump only). Indicates when Emergency (Auxiliary) heat (E ht) is activated. Internally controlled. No COS.

Indicates filter needs changing. Controlled by external switch on LED 1, which displays the filter icon and reports a COS to the Metasys system and causes the NDM to dial out.

If the room temperature is more than 1°C (1°F) away from the setpoint after 45 minutes of operation, a COS occurs which causes the NDM to dial out. Once the temperature reaches the setpoint, the alarm returns to normal.

N/A

4 TEC1100 Series Thermostat Technical Bulletin

Table 4: Applications

Application Recommended Model

Fan Coil Unit

Heat Pump

Unit Heaters

Packaged Rooftop

Packaged Heating/Cooling

TEC1101-1

TEC1102-1

TEC1101-1

TEC1103-1 and Separate Economizer Package (M130EAA-2 or equal in place of Stage 1). Refer to the

AD-DME1702-1 Direct Mount Economizer Controller Technical Bulletin (LIT-6363020).

TEC1101-1 or TEC1103-1

Installation

Required Installation Tools

Mounting the TEC1100 Series Thermostat

The tools needed to install the TEC1100 Series thermostats are:

• drill

• 3/16 in. drill bit

• 1/8 in. and 1/4 in. flat-blade screwdrivers

• hammer

• marking pencil

• wire stripper

Note: Two plastic anchors with screws and the cover lock are included

with the TECs.

Mount the TEC1100 Series thermostat on an interior wall, approximately

1.5 m (5 ft) above the floor in a location of average temperature (72°F). Do not mount the thermostat on outdoor walls or behind doors. Be sure to install the thermostat away from direct sunlight or radiant heat, air discharge grills, stairwells, or outdoor doors. Keep the thermostat away from steam or water pipes, warm air stacks, areas with no airflow, or sources of electrical interference.

To mount:

1. Lift the thermostat cover and insert a small coin into the slot located in the bottom center of the thermostat case.

2. Twist 1/4 turn (Figure 2).

TEC1100 Series Thermostat Technical Bulletin 5

Mount tec1100

Figure 2: Separating and Mounting the TEC1100

3. Grasp the base from the bottom two corners, and separate from the thermostat.

4. Swing the thermostat out from the bottom, and lift up and out from the base.

Note: When replacing an existing thermostat, use wire tags to identify

terminal designations.

5. Place the rectangular opening in the base over the equipment control wires.

6. Use the base as a template, and mark the location of two mounting holes.

7. Drill two 5 mm (3/16 in.) holes at the marked locations.

8. Tap nylon anchors (included) flush to wall surface.

9. Place thermostat mounting holes over anchors, and screw the thermostat into place using the included anchor screws (Figure 2).

10. Plug the hole in the wall to eliminate air drafts on the sensor with the adhesive foam from the ACC-INSL-x Foam Pad Mounting Kit. If you are not using this kit, use putty or duct tape to plug the hole.

Wiring the TEC1100 Series Thermostats

Follow these steps to wire the TECs:

1. Connect the wires from the existing system to the thermostat terminals. Refer to Figure 4, Figure 6, and Figure 8 for wiring diagrams.

2. Push any extra wire back into the wall. The wires must be flush to the plastic base.

3. Plug the hole in the wall to eliminate air drafts on the sensor.

6 TEC1100 Series Thermostat Technical Bulletin

Setting the DIP Switches

Select Dual Inline Package (DIP) switches to perform a variety of different functions: fan runtime delay, keyboard disable, and multistage heating or cooling.

Note: Before selecting a minimum On/Off time for the TEC1100 Series,

verify the equipment can tolerate the following hourly maximum cycle rates: 7.5 cycles per hour when using 4-minute On/Off (preferred for energy savings) or 15 cycles per hour when using 2-minute On/Off.

TEC1101 Single-Stage Wiring Configuration and DIP Switch Settings

Refer to Figure 3, Figure 5, and Figure 7 for DIP switch settings.

Table 5: TEC1101 Single-Stage DIP Switch Selections

DIP Switch Selection Description

* When DIP Switch 2 is on, you can only use the Day/Night mode button to select 1-hour override to occupied setpoints if in Night mode. All other buttons are read-only. You can also view the N2 address.

On Allows 2-minute minimum On/Off time for heating or cooling equipment.

Off Allows 4-minute (preferred) minimum On/Off time for heating or cooling equipment.

On*

Off Unlocks the keyboard.

On In Heating mode, with a call for heat, the plenum temperature switch controls fan

Off Heating or Cooling mode allows the fan to operate immediately with a call for heat

Locks the keyboard, disabling buttons to prevent tampering. The Day/Night mode button can select 1-hour override.

operation. However, Cooling mode allows the fan to operate immediately with a call for cooling. The temperature switch is wired directly to the fan.

or cooling.

Heat/Cool: 4 Minute

(Minimum On/Off)

Fan Immediate

with Call for Heat

Heat/Cool: 2 Minute (Minimum On/Off)

Keyboard LockedKeyboard Unlocked

Fan On with Plenum

Temperature Switch

CLK1 CLK2 RS2

RS1 RS+V N2+

N2REF

TEC1101

Heating

Cooling

Fan

Power in

Common

G R

24V

24V(c)

Hcn2diwi

Figure 3: TEC1101 Single-Stage, Factory-Set DIP Switch Settings and

Wiring Configuration

TEC1100 Series Thermostat Technical Bulletin 7

Table 6: TEC1101 Single-Stage Output Terminal Designations

Terminal Function

G Energizes fan on call for heating or cooling or by pressing the Fan button.

24V

24V(c)

CLK1, CLK2

RS2, RS1, RS+V

N2+, N2-, REF

Energizes on call for heating.

Energizes on call for cooling.

Provides independent switching voltage.

Provides 24 VAC from equipment transformer.

Provides 24 VAC (common) from equipment transformer.

Connects remote clock/timer for alternate setpoints.

Connects outdoor air temperature or indoor remote sensors; refer to instructions included with sensors.

Metasys N2 Bus connections

If the transformer (T2) is to power all of the loads, the yellow pin jumper must be inserted (f actory position), which connects R to 24 V. The jumper is located on the electronics board above the relays. If a separate 24 V transformer (T1) is to be used, it must be connected between R and 24 V(c), and the jumper should not be connected between R and 24 V.

Jumper

Optional Plenum

Temperature Sensor

First St age

Heat

First Stage

Cooling

Fan

T1 T2

24 V

24 V(c)

Figure 4: TEC1101 Single-Stage Wiring Schematic

CPN, FAC,

N2+

Electronics

Rs1

Remote

Sensor

(if used)

Metasys

or NCM

N2- REF

CLK1

Rs2

Clock/Timer

CLK2

Remote

(if used)

Thermostat

Equipment

8 TEC1100 Series Thermostat Technical Bulletin

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