Repair Information - Johnson Controls TEC2627-2 Installation Instructions And Operators Manual

Tec26x7-2 series bacnet ms/tp networked thermostats with two outputs

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Table of Contents

Accessories

All the accessories in Table 6 include mounting

hardware; contact the nearest Johnson Controls®

representative to order any of these parts.

Note: Review the technical specifications of the

accessories prior to their use in an application.

Table 6: Accessories (Order Separately)

Code Number

Description

SEN-600-1

Remote Indoor Air Temperature Sensor

Duct Mount Air Temperature Sensor

TE-6361M-1

SEN-600-4

Remote Indoor Air Temperature Sensor with Occupancy Override and LED

TE-636S-1

Strap-Mount Temperature Sensor

MS-BACEOL-0

RS485 End-of-Line Terminator

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.

Table 7: Troubleshooting Details

Symptom

Probable Causes

Multiple

Excessive bus errors may be occurring.

Symptoms

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 in the Multiple Symptoms section earlier in 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

See the probable causes listed in the Multiple Symptoms section earlier in this table.

Offline

A power failure or other failure may have occurred at the thermostat.

Communication may have been disabled at the thermostat.

TEC26x7-2 Series BACnet® MS/TP Networked Thermostats with Two Outputs Installation Instructions