7.2.2 WALLMOUNT QUICK TROUBLESHOOTING GUIDE.

Operation

Procedure

ByPassing TCS22 Controller

Disconnect power to the TCS22. Unplug the plug in

 

connectors J4 and J5 from the controller

Compressor Test

Connect jumper wire on A/C unit low voltage terminals

 

from R to Y and observe Compressor operation (There

 

will be a Time delay between the installation of the

 

jumper and the starting of the Compressor. The

 

Compressor Time Delay relay will determine the time

 

delay period.). After the Compressor starts, the jumper

 

wire can be removed.

Blower Test

Connect a jumper wire on A/C unit low voltage terminals

 

R to G and observe Blower operation (The Blower will

 

continue to run for One (1) minute after the jumper is

 

removed).

Economizer Test

Connect a jumper wire on A/C unit low voltage terminals

 

R to G and observe Blower operation. After Blower

 

operation is confirmed, the Economizer can be tested.

 

Leave the jumper in place from the previous step.

 

Connect a separate jumper on the A/C unit low voltage

 

terminals from E to F and observe the Economizer

 

operation (Never connect power to terminals E or F).

Heater Test

Connect a jumper wire on A/C unit low voltage terminals

 

R to W1. The Heating contactor will engage when the

 

jumper is connected. The Blower will also operate while

 

this jumper is in place. To check the operation of the

 

Heater, you will have to check the Discharge Air

 

temperature of the A/C unit.

Restarting TCS22

Remove All jumper wires and reconnect the plug in

 

connectors J4 and J5 to the controller. Reapply power to

 

the TCS22

2100-444-002A

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Bard TCS22-***-003 manual Operation Procedure, Wallmount Quick Troubleshooting Guide

TCS22-***-003 specifications

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