Trane RT-SVX19A-E4 manual Test modes, Step Test Mode, Auto Test Mode, Heat

Operation

Test modes

There are 2 methods in which the "Test" mode can be cycled with the test button:

1. Step Test Mode

This method initiates the different components of the unit, one at a time, by temporarily shorting across the two test terminals for two to three seconds. For the initial start- up of the unit, this method allows the technician to cycle a component "On" and have up to 1 hour to complete the check.

2. Auto Test Mode

This method is not recommended for start-up due to the short timing between individual component steps. This method initiates the different components of the unit, one at a time, when a jumper is installed across the test terminals. The unit will start the first test step and change to the next step every 30 seconds. At the end of the test mode, control of the unit will automatically revert to the applied "System" control method.

For unit test steps and test modes, values to cycle the various components, refer to Table 36.

Table 36 - Service Test Guide for Component Operation on gas-fired units

Step	Mode	Indoor	Economizer	Compressor	Compressor	Heat 1	Heat 2	Outdoor 1	Outdoor 2
		Fan		1	2
1	Fan On	On	Min	Off	Off	Off	Off	Off	Off
2*	Econ.	On	Open	Off	Off	Off	Off	Off	Off
3	CooI1	On	Min	On	Off	Off	Off	On	**
4	CooI2	On	Min	On	On	Off	Off	On	**
5	Heat1	On	Min	Off	Off	On	Off	Off	Off
6	Heat2	On	Min	Off	Off	On	On	Off	Off

*With Optional Accessory

**"Off" If temperature falls below 16° (±1°)°C, "On" if temperature rises above 18°(±1°)°C. Note: Steps for optional accessories and modes not present in unit will be skipped.

50 RT-SVX19A-E4