Operation

Thermostat signals are as follows:

R 24VAC power to thermostat

Y1 Call for compressor 1 or first stage cooling

Y2 Call for compressor 2 or 2nd stage cooling

G Call for supply fan

W1 Call for heat 1

W2 Call for heat 2

Heat pump only:

X2 Call for emergency heat

O Switchover valve On = cooling, Off = heating

T Bias for heat anticipation for those mechanical thermostats that use this function

Conventional thermostat – Gas/ Electric, Electric Heat:

Function when

Input/connection energized :

G (fan)

Fan runs continuously

 

except during

 

unoccupied mode

 

(see next page)

Y1 (compressor 1 Compressor #1 runs

or economizer) or economizer operates

Y2 (compressor 2 Compressor #2 also or compressor 1 runs, or #1

while economizing) compressor runs while economizing

W1 (gas / electric

1st stage heat

heat first stage)

 

W2 (gas / electric

2nd stage heat (if

heat 2nd stage)

available)

Conventional thermostat –

Heat Pump

 

Function when

Input/connection

energized

Cooling mode:

 

G (fan)

Fan runs continuously

 

except during

 

unoccupied mode

 

(see next page)

O (reversing valve

Reversing valve in

during cooling)

cool mode

Y1 + O

Compressor #1 runs

(first stage cooling) or economizer

 

operates

Y1 + Y2 + O

Compressor #2 also

(2nd stage cool)

runs, or #1

 

compressor runs

 

while economizing.

Heating mode:

 

G (fan)

Fan runs continuously

 

except during

 

unoccupied mode

 

(see below)

Y1 (both

Both compressors

compressors 1st

run

stage heat)

 

Y2 (during heating

No change

– nothing happens)

 

W2 (electric heat

2nd stage (electric)

2nd stage)

heat

X2 (electric heat

Electric heat only –

only)

no compressors

T (provides heat anticipation signal for those mechanical thermostats that use this feature. If the thermostat used does not have a “T” terminal, disregard this terminal.

RT-SVX19A-E4

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Image 45
Trane RT-SVX19A-E4 manual Thermostat signals are as follows, Conventional thermostat Gas/ Electric, Electric Heat

RT-SVX19A-E4 specifications

The Trane RT-SVX19A-E4 is a groundbreaking rooftop unit designed for versatile commercial heating and cooling applications. This model stands out for its innovative technology and robust features, making it a preferred choice for many businesses seeking efficient climate control solutions.

One of the primary characteristics of the RT-SVX19A-E4 is its exceptional energy efficiency. It utilizes advanced variable-speed technology, allowing it to adjust the compressor's output based on real-time demand. This not only reduces energy consumption significantly but also provides more accurate temperature control, enhancing overall comfort within the space. The unit is designed with high-efficiency fan motors and optimized heat exchangers, which contribute to its impressive Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER) ratings.

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In conclusion, the Trane RT-SVX19A-E4 represents a significant advancement in rooftop HVAC technology, combining energy efficiency, durability, and intelligent controls. Its ability to adapt to varying demands, coupled with customizable options, makes it an excellent investment for businesses looking to enhance their indoor climate while minimizing energy expenses.