Atherion Controls System Quickstart Guide

For Packaged Ventilation/Dedicated Outside Air System (DOAS) model MPR

Document Number: ATH74-526.2

Part Number: 5H0844520001

Important Safety Information

WARNING

Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death, and could cause exposure to substances determined by various state agencies to cause cancer, birth defects, or other reproductive harm. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

IMPORTANT

These instructions must also be used in conjunction with the Installation and Service Manual and the Controls Manual that shipped with the model MPR unit, in addition to any other accompanying component supplier literature.

Introduction

This guide provides basic instructions for establishing unit setpoints and scheduling using the integrated keypad and LCD screen on the unit controller or the pGD1 display module. The pCO5+ Controller features an integrated keypad and LCD screen. The pGD1 handheld controller offers remote access and the same functionality as the unit controller, useful when the unit is mounted in hard-to-reach locations. Units can operate standalone or networked on a Building Management System (BMS). This guide also covers adjusting the unit's device instance for proper BMS communication.

Visual Description: The document displays images of the 'pCO5+ Controller' (a rectangular device with buttons and a screen) and the 'pGD1 Display Module' (a similar rectangular device with a screen and fewer buttons).

1. Begin

  1. Install the unit in the desired location according to the Installation and Maintenance Manual. Note: The controller will not be powered until appropriate electrical connections are made and the disconnect switch is in the "ON" position.
  2. If the display module is not mounted on the unit, connect the pGD1 handheld module using the provided RJ-12 communication cable to port J10, as shown on the unit-mounted wiring diagram.

2. Navigating the Display Module Screen

The display module screen allows users to navigate menus, adjust settings, and view system status. The following table outlines the controller buttons and their functions:

Controller Buttons Function Description Controller Buttons Function Description
[ALARM] Alarm Status When one or more alarms are active, the [ALARM] button blinks/flashes red. Pressing it once displays information about active alarms. Pressing it twice resets any active manual-reset alarms. [UP] Scroll / Increase Pressing the [UP] button can scroll through display screens (when cursor is in the top left position) or increase a setpoint value.
[PRG] Main Menu Pressing the [PRG] button selects the main navigation menu. [ENTER] Confirm / Next Pressing the [ENTER] button confirms setpoint adjustments and moves the cursor to the next available setpoint.
[ESC] Return to Main Pressing the [ESC] button returns the user to the main display screen showing unit status. [DOWN] Scroll / Decrease Pressing the [DOWN] button can scroll through display screens (when cursor is in the top left position) or decrease a setpoint value.

3. Main Screen and System Status

The main screen is the default navigation page and can be recalled by pressing the [ESC] button (potentially multiple times depending on the active menu). Pressing the [UP] or [DOWN] buttons allows users to scroll through various display screens that provide information about current system operation, including temperatures, output status, and space demand.

Visual Description: The main screen typically displays the current time and date (e.g., '11:06 11/16/17'), unit identifier ('Unit:01'), Supply Air status ('SA: 68.0%'), Supply Setpoint ('Supply Set: 70.0%'), and operational status ('Status: OFF-KEYPAD', 'OCCUPIED').

4. Turning Unit On / Off

  1. Enter the main menu by pressing the [PRG] button. Scroll down to 'A. On/Off Unit' and press [ENTER].
  2. To change the unit's power state, move the cursor to the 'Power By Display' line using the [UP]/[DOWN] buttons and select 'ON' or 'OFF' using the [UP]/[DOWN] buttons. The parameter must be set to 'ON' for the unit to function.

Visual Description: The 'On/Off Unit' screen shows 'Unit Address: 1', 'Power By Display: OFF', and 'Status: OFF-KEYPAD'.

5. Schedule

a. Customizing the 7-Day Schedule

For units not communicating with a BMS, an internal timeclock defines a preset 7-day schedule. By default, the unit operates in occupied mode from 6:00 AM to 4:00 PM, Monday through Friday, with no holidays programmed.

  1. Enter the main menu by pressing [PRG] and scroll to 'C. Clock/Scheduler', then press [ENTER].
  2. The first screen displays the current date and time. To adjust, press [ENTER] to highlight the field needing change, then use the [UP]/[DOWN] buttons to adjust the numbers.
  3. Press [ENTER] to move through adjustable setpoints until the cursor is in the upper left corner. Use the [UP]/[DOWN] buttons to scroll to the next page.
  4. To select the number of schedules, highlight the 'Number of Schedules' field and adjust using the [UP]/[DOWN] buttons. Press [ENTER] to confirm and use the [UP]/[DOWN] buttons to scroll to the next page.
  5. The subsequent screen displays the first programmable schedule. Highlight fields and adjust time and days for desired unit operation. To move to the next time period, highlight the 'Schedule #' field and adjust using the [UP]/[DOWN] buttons.

Visual Description: The 'Clock/Scheduler' screen shows fields like 'L1', 'Day: Friday', 'Date: 11/16/17', 'Hour: 11:08'. A 'Schedule' screen displays 'Schedule #: 1', 'Time On: 6:00', 'Time Off: 16:00', 'Days Enabled: MTWTF**'.

b. Customizing Holiday Schedules

  1. In the 'Clock/Scheduler' menu, scroll to the 'Holidays' screen. Use the [UP]/[DOWN] buttons to adjust the number of holidays (up to 16).
  2. Press [ENTER] to move the cursor to each date range and use the [UP]/[DOWN] buttons to adjust the numbers. Unused holiday ranges can be left as '0/0-0/0'.

6. Changing Setpoints

  1. Enter the main menu by pressing [PRG] and scroll to 'B. Setpoint', then press [ENTER].
  2. Occupied Setpoints without Space pAD: Press [ENTER] to highlight 'Neutral Air'. Use the [UP]/[DOWN] buttons to adjust the setting. This reflects the Supply Air temperature entering the space.
  3. Occupied Setpoints with Space pAD: Press [ENTER] until the cursor is in the upper left corner. Use the [UP]/[DOWN] buttons to scroll to the 'pAD Thermostat' page. Press [ENTER] to highlight 'Temperature'. Use the [UP]/[DOWN] buttons to adjust the setting, which reflects the space cooling setpoint. The space heating setpoint is determined by a default heating/cooling band of 4°F (e.g., 74°F cooling setpoint results in a 70°F heating setpoint). Refer to the Controls Manual for further adjustments.
  4. Unoccupied Setpoints (requires Space pAD): Press [ENTER] until the cursor is in the upper left corner. Use the [UP]/[DOWN] buttons to scroll to the 'pAD Thermostat' page. Press [ENTER] to highlight 'Unoccupied Cool' and use the [UP]/[DOWN] buttons to adjust. Press [ENTER] to highlight 'Unoccupied Heat' and use the [UP]/[DOWN] buttons to adjust.
  5. Dehumidification Setpoints, Dewpoint & Space pAD: Press [ENTER] until the cursor is in the upper left corner. Use the [UP]/[DOWN] buttons to scroll to the 'DeHum Setpoint Dewpt' page for dewpoint dehumidification control.
    • Under Occupied, press [ENTER] to highlight 'OA Dewpoint' and use [UP]/[DOWN] to adjust.
    • Under Unoccupied, press [ENTER] to highlight 'Space Dewpoint' and use [UP]/[DOWN] to adjust (only applicable with Space pAD).
  6. Press [ENTER] until the cursor is in the upper left corner. Use the [UP]/[DOWN] buttons to scroll to the 'DeHum Setpoint PAD' page. Space dehumidification control requires Space pAD.
    • Under Occupied, press [ENTER] to highlight 'Space Humidity' and use [UP]/[DOWN] to adjust.
    • Under Unoccupied, press [ENTER] to highlight 'Space Humidity' and use [UP]/[DOWN] to adjust.

Visual Description: The 'PAD Thermostat' screen shows 'Occupied Setpoints' with 'Cool Setpoint: 74.0%', 'SA Granularity: 1.0%', 'Heat Offset: 4.0%', and 'Heat. Setpoint: 70.0%'. The 'DeHum Setpoint Dewpt' screen shows 'Occupied OA Dewpoint: 72.0% --> SA: 70.0%' and 'Unoccupied DA: 85.0% --> SA: 55.0%'. Note: Occupied and unoccupied settings can also be changed from the Space pAD.

7. Service

Enter the main menu by pressing [PRG] and scroll to 'G. Service', then press [ENTER]. This menu provides access to parameters for advanced setup or control, including BMS Setup, Control Settings (like temperature lockouts or stage delays), and manual control of controller inputs/outputs. Refer to the Controls Manual for additional information.

8. BMS Setup

Units can utilize one of three BMS system protocols: LonWorks® FTT-10, BACnet® MS/TP, or BACnet® TCP/IP. Please refer to the Network Interface Card Instruction Manual and the Controls Manual that shipped with the unit for additional information.

9. Advanced Information

The manufacturer menu provides access to parameters not typically required for field changes, such as unit configuration, controller input/output configuration, and reboot sequences. Contact Technical Service for assistance with this section if needed.

10. Viewing / Clearing Alarms

If the unit is sending an alarm signal, the alarm icon on the display module will flash continuously.

  1. Press [ENTER] to display active system alarms. If multiple alarms exist, they can be viewed using the [UP]/[DOWN] buttons.
  2. Details of the unit's running conditions when the alarm occurred can be viewed by pressing [ENTER] after reaching the end of the alarm list.
  3. Pressing and holding the [ESC] button will clear the flashing icon and all active alarms, indicating no active alarms are present.
  4. The alarm log can be viewed by pressing [PRG]. Press [ESC] to return to the main screen. If an alarm persists, the alarm light will begin to flash again.
Models: ATH74-526.2, pCO5 Controller and pGD1 Display Module

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ATH74-526

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