TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat
Controllers Installation Instructions
15
Table 3: Accessories (Order Separately)
Code Number
Description
SEN-600-1
Remote Indoor Air Temperature Sensor
SEN-600-4
Remote Indoor Air Temperature Sensor with Occupancy Override and LED
TE-6361M-1
1
Duct Mount Air Temperature Sensor
TE-6363P-1
1
Outside Air Temperature Sensor
TEC-3-PIR
2
Cover with Occupancy Sensor
1.
Additional TE-636xx-x Series 10k ohm Johnson Controls Type II Thermistor Sensors are available; refer to the
TE-6300 Series Temperature Sensors Product Bulletin (LIT-216320)
for more details.
2.
The TEC-3-PIR Accessory Cover can be used to replace the existing cover on a non-PIR TEC2604-4 Thermostat
Controller to provide occupancy sensing capability.
Table 4: Alarm Messages
Display
Function
Frost
Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6°C (42°F).
Fan Lock
Indicates that the heating and cooling action are locked out due to a defective fan operation.
Service
Indicates that there is a service alarm in accordance with a programmable Digital Input.
Filter
Indicates that the filter(s) is dirty in accordance with a programmable Digital Input.
Table 5: Troubleshooting Details
1
(Part 1 of 2)
Symptom
Probable Causes
Multiple
Symptoms
Excessive bus errors may be occurring.
A device may have been added or changed with a duplicate address (may not be the same address as
some devices having problems, and may have happened sometime before the problem was noticed).
Wiring errors or wire problems may exist.
The baud rate may have been changed on some devices on the network but not all devices.
Max_Master may have been changed incorrectly (may have happened sometime before the problem
was noticed).
A download may be in progress.
There may be a fault at a device.
A repeater may be needed or may be configured incorrectly.
There may be a duplicate device object name or instance.
Poor Performance
See the probable causes listed previously in the
Multiple Symptoms
section of this table.
Excessive bus traffic may exist (bus overload).
The baud rate may be set too low.
There may be too many devices on the network.
There may be unaccounted devices on the network (not mapped to the NAE).
There may be unusually slow devices on the network or devices that are slow to respond.
Thermostat Goes
Offline
See the probable causes listed previously in the
Multiple Symptoms
section of this table.
A power failure or other failure may have occurred at the thermostat controller.
Communication may have been disabled at the thermostat controller.
