QwikProducts QT6100 OEM Constant Torque ECM w PSC Board Instructions

HVAC/R Performance Products
Indoor Air Quality Products
Training / Certifications
QwikSwap® X1 & X3 Troubleshooting Steps

QT6100 OEM Constant Torque ECM w PSC Board

PROBLEM| SOLUTION| |
---|---|---|---
I don’t know if I need to use the R terminal on the QwikSwap Board (X1 or X3).| Use of the R terminal on the QwikSwap (X1 or X3) in most installations is optional (some installations will require the use of the R terminal if the air handler fan control board outputs a DC voltage or if there is a resistor in the control wiring). Connecting the R terminal activates a delay that keeps the fan running for 3 minutes after the thermostat tells it to shut off. If you want this delay connect the R terminal to the 24 VAC terminal
on the low voltage transformer (typically the red wire that also goes to the thermostat R terminal) and remove the jumper next to the R terminal.
I connected the R
terminal but now the QwikSwap (X1 or X3) will not turn off.| Connecting the R terminal activates the 3 minute delay after break feature. Sometimes the blower control board in the air handler has an additional delay that adds to the
3 minute delay of the QwikSwap. If you wish to disable the 3 minute delay on the QwikSwap, install the jumper on the two pin header next to the R terminal.
I have read all of the troubleshooting steps but I still cannot solve the problem I am having.| Using insulated test leads carefully measure and record the voltage across the terminals listed below (measure for both AC and DC) and call:
Mainstream Engineering for technical support (321-631-3550).
Measure Across
These Terminals| Normal
Measured Voltage “Expected”Voltage
C and 1
(if there is a wire on 1)| | 20-30 AC or DC
C and 2
(if there is a wire on 2)| | 20-30 AC or DC
C and 3
(if there is a wire on 3)| | 20-30 AC or DC
C and 4
(if there is a wire on 4)| | 20-30 AC or DC
C and 5
(if there is a wire on 5)| | 20-30 AC or DC
C and R
(if there is a wire on R)| | 20-30 AC
L and N| | 120-240 VAC
Speed and COM| | 120-240 VAC

For more details or information about QwikSwap visitwww.qwik.com
QwikProducts® and QwikSwap® are registered trademarks of Mainstream Engineering Corporation, Rockledge, Florida 32955,
321-631-3550
• © 2022 Mainstream Engineering Corporation
• All QwikProducts® are made in the USA. Patents Pending
Mainstream Engineering Corporation
1-800-866-3550
www.qwik.com
5010162_REV-B / 1201820002

Documents / Resources

| QwikProducts QT6100 OEM Constant Torque ECM w PSC Board [pdf] Instructions
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