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TEC22x4-3 L

ON

W

ORKS

® Networked Multi-Stage Economizer Thermostats Installation Instructions

16

Technical Specifications     

Thermostat does 
not call for cooling

Wrong mode 
selected

Select cooling mode.

Thermostat in 
Unoccupied mode

Select Override to force the thermostat Occupied cooling setpoint.

Anticycle delay 
active

Wait — the anticycling period must end before the equipment can start.

Cooling setpoint is 
satisfied

Lower the cooling setpoint.

Cooling lockout 
attained

Mode is locked out based on outside air temperature.
Change configuration parameter 

C Lock 

to value -40 °F (-40 °C) to by-pass 

lockout.

Wiring error

Start the fan by forcing the Fan ON mode.
Put a jumper across terminals RC and Y1. The cooling should come ON. If it 
does not, verify wiring

The thermostat 
does not turn on 
the fan 

Wiring error

Start the fan by forcing the Fan ON mode.
Put a jumper across terminals RC and G. The fan should come ON If it does 
not, verify wiring.

Digital display 
shows missing 
digits or erratic 
segments

Defective display

Replace the thermostat.

Table 9:  Display Messages

Display

Function

Service

Indicates that there is a service alarm in accordance with the programmable Digital Inputs (DI1 or DI2)

Filter

Indicates that the filter(s) is dirty in accordance with the programmable Digital Inputs (DI1 or DI2).

Frost ON

Indicates that the heating is energized by the low

-

limit frost protection room temperature setpoint.

SetClock

Indicates that there has been a power failure greater than 6 hours and the clock needs to be reset.

Table 8:  Troubleshooting Details (Part 2 of 2)

Symptom

Cause

Solution(s)

TEC22x4-3 L

ON

W

ORKS

 Networked Multi-Stage Economizer Thermostat (Part 1 of 2)

Power Requirements

19 to 30 VAC, 50/60 Hz, 2 VA (Terminals RC and C) at 24 VAC Nominal, Class 2 or 
Safety Extra-Low Voltage (SELV)

Economizer 
Output 

Rating

0 to 10 VDC into 2k ohm Resistance (Minimum)

Accuracy

±3%

Relay Contact Rating

30 VAC, 1.0 A Maximum, 3.0 A In-Rush, Class 2 or SELV

Digital Inputs

Voltage-Free Contacts across Terminal C to Terminals DI1 and DI2

Wire Size

Unshielded Twisted Pair - 22 AWG (0.6 mm Diameter) Minimum, 18 AWG (1.0 mm 
Diameter) Recommended

L

ON

W

ORKS

 Network Standard

64 Devices Maximum without repeater, 128 Devices Maximum with repeater; 6,250 ft 
(1,905 m) Maximum Length (Bus Topology)

Temperature Sensor Type

Local 10k ohm Negative Temperature Coefficient (NTC) Thermistor

Temperature 
Range

Backlit 
Display

-40.0°F/-40.0°C to 122.0°F/ 50.0°C in 0.5° Increments

Heating 
Control

40.0°F/4.5°C to 90.0°F/32.0°C

Cooling 
Control

54.0°F/12.0°C  to 100.0°F/38.0°C

Содержание TEC22 4-3 Series

Страница 1: ...nt Regulations Cet appareil num rique de la Classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Installation Location Considerations Locate the TEC22x4 3 thermosta...

Страница 2: ...efully snap it into the locking tabs on the thermostat mounting base 9 Pull the pull tabs on each of the connectors and remove the screw terminal blocks as illustrated in Figure 4 Wiring When an exist...

Страница 3: ...7 8 9 10 11 12 13 14 15 16 Figure 6 Wiring the TEC22x4 3 Thermostats FIG TEC22x4_wrng 24 VAC Thermostat Power Y2 Y1 RC EC C If using the same power source for the thermostat and heating loads install...

Страница 4: ...of a segment a segment is a physically continuous length of wire The thermostat is not equipped with the ability to provide this termination therefore it cannot be located at the physical end of a LO...

Страница 5: ...Configuration Menu is used to set up the thermostat for application specific operation To access this menu press and hold the MENU key for approximately 8 seconds Configuring the TEC22x4 3 Thermostats...

Страница 6: ...thermostat RemNSB Remote Night Setback NSB via a time clock input an occupancy sensor or from a voltage free contact Contact open Occupied contact closed Unoccupied DI21 Configuration of Digital Inpu...

Страница 7: ...cycle timer Heat cph Sets the maximum number of Heating cycles per hour Default 4 0 Range 3 0 to 8 0 cycles per hour Cool cph Sets the maximum number of Cooling cycles per hour Default 4 0 Range 3 0 o...

Страница 8: ...H stage Reverts the operation of a two stage thermostat to a single stage thermostat when the second heating stage is not needed Default 2 0 1 0 One Stage 2 0 Two Stages C stage Reverts the operation...

Страница 9: ...fault 55 0 F 13 0 C Range 14 0 F 10 0 C to 70 0 F 21 0 C Min pos Sets the minimum position for the OA dampers on the economizer These dampers are energized to minimum position when the fan Terminal G...

Страница 10: ...e To resume the schedule while in the Main User Menu 1 Press the NO key to all prompts until the Cancel ovrd Y N prompt appears If the thermostat is in the unoccupied override state this is the first...

Страница 11: ...tus Display Menu to enter the Main User Menu Press the NO key to all prompts until the temperature setpoint prompt appears on the display it may be the first prompt Press the YES key to enter the temp...

Страница 12: ...event parameter during the configuration process If the schedule setting menu does not reflect a two event schedule select two events in the 2 4event parameter of the Installer Configuration Menu When...

Страница 13: ...prompt appears on the display Press the YES key to enter the scheduling menu Table 4 Programming the Daily Schedule Two Event Part 2 of 2 Thermostat Display Description Wednesda set Y N Exit Y N RoomT...

Страница 14: ...ayed press the YES key to store the day 6 Press the YES key to choose the time format or press the NO key to access the Main User Menu exit prompt 7 Press the UP DOWN arrow keys to select the desired...

Страница 15: ...ly voltage between RC and C is in the range of 19 to 30 VAC Check for tripped fuse or circuit breaker Overloaded power transformer Verify that the transformer used is powerful enough enough VAs to sup...

Страница 16: ...igital Inputs DI1 or DI2 Filter Indicates that the filter s is dirty in accordance with the programmable Digital Inputs DI1 or DI2 Frost ON Indicates that the heating is energized by the low limit fro...

Страница 17: ...g and Regulating Equipment FCC Compliant to CFR 47 Part 15 Subpart B Class A LONMARK Certification 3 4 pending Canada UL Listed File E27734 CCN XAPX7 Under CAN CSA C22 2 No 24 Temperature Indicating a...

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