Quick Start Guide
Model: ERW-I
This quick start document is intended to help with getting the initial unit startup completed, but does not replace the IOM (Installation and Operation Manual). Please read the IOM for all safety information and precautions before performing any work on the equipment. Complete pre-start checks and blower start-up prior to this procedure.
ERVi Start Up
- Verify the unit is free of any items or debris.
- Verify the fan wheels and energy recovery wheel rotate freely.
- Verify that the incoming power matches the unit electrical label.
- Verify wiring connections are secure by performing a "tug test".
- Create a contact closure between terminals R and G. NOTE: This MUST be a DRY contact only. Applying Voltage to Terminal G will result in damage to the controller.
- Energize the unit at the disconnect.
- Verify fan rotation. See Figure 1.
- Verify energy wheel rotation if applicable. See Figure 2.
- Press the program key ? to access the main menu.
- Select unit enable by pressing enter ↩️.
- Select Enable/Disable by pressing enter ↩️ and using up/down ⬆️⬇️ arrows to toggle.
- Use the Control Variables menu to adjust fan speed, temperature, and economizer settings. (Full explanation of the controller is available in the IOM).
Fan Speed Adjustments
- Press the program key ? to access the main menu.
- Scroll to Ctrl Variables, press enter ↩️.
- Select fan control. Choose either supply/exhaust fan for settings.
Figures
Figure 1: Supply/Exhaust Fan Rotation
Image shows the interior of an HVAC unit, focusing on a fan wheel labeled 'Wheel Rotation'. This illustrates the supply/exhaust fan rotation.
Figure 2: Energy Wheel Rotation
Image shows a pulley or wheel assembly, with a label 'WHEEL ROTATION' indicating direction. A manufacturer's plate with text is visible in the background. This illustrates the energy wheel rotation.
Figure 3: Keypad Description
| Keypad Element | Description |
|---|---|
| ⚠️ Alarm | Button will blink red, indicating an alarm condition. Press to review current alarms. To review previous alarms, access the Alarm Menu. |
| ⬇️ Down Arrow | The arrow keys allow the user to scroll through different screens and adjust parameters. |
| ⬆️ Up Arrow | The arrow keys allow the user to scroll through different screens and adjust parameters. |
| ↩️ Enter |
A. In screens with adjustable parameters, pressing the Enter key moves the cursor from the upper left corner of the screen to the parameter. The arrow keys can then be used to adjust the parameter. B. To move to the next parameter on the same screen, press the Enter button. C. To save the change, press the Enter button until the cursor moves back to the upper left corner of the screen. |
| ↪️ Escape | Allows the user to exit the current menu, jumping to the Main Menu. |
| ? Program | Pressing the Prg (Program) button allows the user to enter the Main Program Menu. |
