AAON Auto-Zone 2 GPC-XP Application Manual
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AAON Auto-Zone 2 GPC-XP Application Manual

AAON Auto-Zone 2 GPC-XP Application Manual

Wshp loop control using the gpc-xp controller
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WSHP Loop Control
Using The
GPC-XP Controller
Application Guide

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Summary of Contents for AAON Auto-Zone 2 GPC-XP

  • Page 1 www.az2controls.com WSHP Loop Control Using The GPC-XP Controller Application Guide...

  • Page 2: Table Of Contents

    Table Of Contents Table of Contents GPC-XP Controller ............................3 Overview ......................................3 Features .......................................3 Water Source Heat Pump System Operation ....................4 Water Source Heat Pump Unit ..............................4 Water Source Heat Pump System ...............................5 Operation Of The WSHP Loop Controller ......................6 Overview ......................................6 Typical Sequence ..................................6 Pump On/Off -Control ...................................6...

  • Page 3: Gpc-Xp Controller

    Introduction GPC-XP Controller Features Overview Controller General The GPC-XP is a software driven, multi-function controller which can • Stand-alone or network operation. be configured to a variety of applications from simple on/off time clock • Onboard time clock control to more complex sequences involving multiple input and outputs control based on basic logic functions.

  • Page 4: Water Source Heat Pump System Operation

    General Information Water Source Heat Pump System Operation Figure 1: Typical Water Source Heat Pump Unit Operation Diagram Water Source Heat Pump Unit During the cooling mode, the tube-in-tube heat exchanger functions as a condenser and the coil as an evaporator. In heating mode, the A water source heat pump is a self-contained water-cooled packaged tube-in-tube heat exchanger functions as an evaporator and the coil heating and cooling unit with a reversible refrigerant cycle.

  • Page 5: Water Source Heat Pump System

    General Information Water Source Heat Pump System Operation Figure 2: Typical Water Source Heat Pump System Diagram Water Source Heat Pump System Another valuable benefit of water source heat pumps is that they can accommodate simultaneous calls from zones requiring heating or The water source heat pump system is, by definition, a heat recovery cooling.

  • Page 6: Operation Of The Wshp Loop Controller

    Operation Operation Of The WSHP Loop Controller Overview Pump On/Off -Control The GPC-XP Controller can be configured to control the water loop When a Request to Run is received, the GPC-XP Loop Controller to the individual water source heat pumps installed in a typical water activates the System Pump to initiate water flow to the heat pumps source heat pump system.

  • Page 7: Wshp Unit Compressor Enable

    Operation Operation Of The WSHP Loop Controller WSHP Unit Compressor Enable Heat Addition If after the Lead/Lagged pump activates and Proof of Water Flow has Staged Heating been established, the System Active relay is energized and when AZ The GPC-XP Loop Controller monitors the loop water temperature to 2 Controllers are being used for the WSHP units, a Global enable is determine if the loop water needs to be heated.

  • Page 8: Controller, Sensors & Related Hardware

    Components Controller, Sensors & Related Hardware GPC-XP Controller OE338-23-GPCXP The OE338-23-GPCXP Controller is used for controlling equipment or processes that cannot be controlled us- ing a standard HVAC controller. The Prism 2 computer front end software is required to interface with the GPC- XP controller functions.

  • Page 9: Optional Communication Devices And Software

    Components Optional Communication Devices and Software Note: The GPC-XP has its own USB port for direct connection to a desktop or laptop Windows based PC. For remote communications via an internet connection or if you need to locate your PC further than the USB cable length allows, you will need to consider the following devices listed in the table below.

  • Page 10: Communication, Baud Rate Settings & Wiring Info

    Settings Communication, Baud Rate Settings & Wiring Info Important Wiring Considerations Before Applying Power In order to have a trouble free start-up, it is important to follow a few Please read carefully and apply the following information when wiring the GPC-XP Controller: simple procedures.

  • Page 11: Communication, Baud Rate Settings & Wiring Info

    Settings Communication, Baud Rate Settings & Wiring Info Caution: Disconnect All Communication Loop Wiring From The Controller Before Removing Power From The Controller. Reconnect Power And Then Reconnect Communication Loop Wiring. GPC-XP Controller Note: The Power To The Controller Must Be Removed And Reconnected After Changing The Address Switch Settings In Order For Any Changes To Take Effect.

  • Page 12: Input Wiring

    Wiring Input Wiring Figure 6: Typical Water Source Heat Pump Loop Controller Input Wiring using GPC-XP WSHP Loop Controller GPC-XP Guide...

  • Page 13: Output Wiring

    Wiring Output Wiring Figure 7: Typical Water Source Heat Pump Loop Controller Output Wiring using GPC-XP WSHP Loop Controller GPC-XP Guide...

  • Page 14: Configuring The Controller

    Configuration Configuring The Controller Figure 8: GPC-XP Status Screen General Status Screen Using the GPC-XP as a Water Source Heat Pump Loop Controller Figure 8 shows a typical GPC-XP status screen after being configured requires that it be configured for your application. The information that for use as a Central Plant Controller.

  • Page 15: Analog Input #1

    Configuration Configuring the Controller Figure 10: AIN1 Sensor Screen Analog Input #1 Item #3 indicates the Sensor Scaling has been configured to “10” which will show tenths of a degree on the screen. So at a 74.51 degrees actual This is the input configuration screen that would be configured for the temperature signal from the sensor the screen would show 74.5 degrees.
  • Page 16 Configuration Configuring The Controller Figure 11: AIN2 Sensor Screen Figure 12: AIN3 Sensor Screen WSHP Loop Controller GPC-XP Guide...

  • Page 17: Analog Input #2

    Configuration Configuring the Controller Figure 13: AIN4 Sensor Screen Analog Input #2 Analog Input #4 This is the input configuration screen used for the Supply Water Tem- This is the input configuration screen used for the Differential Pressure perature sensor (TW Supply Water”) on Analog Input #2 (AIN2). Item Sensor (“Loop Pressure”) when used.
  • Page 18 Configuration Configuring The Controller Figure 14: AIN5 Sensor Screen Figure 15: AIN6 Sensor Screen WSHP Loop Controller GPC-XP Guide...

  • Page 19: Analog Input #5

    Configuration Configuring the Controller Figure 16: AIN7 Sensor Screen Analog Input #5 Analog Input #7 In this example this is the input configuration screen for the Boiler Loop In this example this is the input configuration screen for the cooling tower Temperature sensor (“Boiler Loop Temp”) when used on Analog Input Sump Water Temperature (“Sump Temp”) sensor when used, located #5 (AIN5).
  • Page 20 Configuration Configuring The Controller Figure 17: BIN1 Input Screen Figure 18: BIN2 Input Screen WSHP Loop Controller GPC-XP Guide...

  • Page 21: Binary Input #1

    Configuration Configuring the Controller Figure 19: BIN3 Input Screen Binary Input #1 Binary Input #3 In this example this is the input configuration screen for “Request To IIn this example this is the input configuration screen for “Spray Pump Run” on Binary Input #1 (BIN1). Item #1 in Figure 17 indicates the POF”...
  • Page 22 Configuration Configuring The Controller Figure 20: BIN4 Input Screen Figure 21: BIN5 Input Screen WSHP Loop Controller GPC-XP Guide...

  • Page 23: Binary Input #4

    Configuration Configuring the Controller Figure 22: BIN6 Input Screen Binary Input #4 Binary Input #6 In this example this is the input configuration screen for “Boiler POF” In Figure 22 Item #1 it indicates that Binary Input #6 (BIN6) is not used on Binary Input #4 (BIN4).
  • Page 24 Configuration Configuring The Controller Figure 23: BIN7 Input Screen Figure 24: BIN8 Input Screen WSHP Loop Controller GPC-XP Guide...

  • Page 25: Binary Input #7

    Configuration Configuring the Controller Figure 25: Relay Output #1 Screen Item #4 is the “Changeover Interval” for the Lead/Lag Pump sequence. Binary Input #7 In this example it has been configured to switch from “System Pump 1” (Lead) to “System Pump 2” (Lag) after 80 hours of runtime on “System In Figure 23 Item #1 it indicates that Binary Input #7 (BIN7) is not used Pump 1”.
  • Page 26 Configuration Configuring The Controller Figure 26: Relay Output #2 Screen Figure 27: Relay Output #3 Screen WSHP Loop Controller GPC-XP Guide...

  • Page 27: Relay Output #2

    Configuration Configuring The Controller Relay Output #2 Relay Output #3 In this example Relay Output #2 is configured for “System Pump 2”. In this example Relay Output #3 is configured for the “TW Spray In Figure 26 Item #1 it indicates it has a Main Control Method of “Lag Pump”(Tower Spray Pump).
  • Page 28 Configuration Configuring The Controller Figure 28: Relay Output #4 Screen Figure 29: Relay Output #5 Screen WSHP Loop Controller GPC-XP Guide...

  • Page 29: Relay Output #4

    Configuration Configuring The Controller Relay Output #4 Relay Output #5 In this example Relay Output #5 is configured for the “Cool Bypass In this example Relay Output #4 is configured for the “Tower Fan” (TW Fan). In Figure 28 Item #1 it indicates it has a Main Control Method Valve”...
  • Page 30 Configuration Configuring The Controller Figure 30: Relay Output #6 Screen Figure 31: Relay Output #7 Screen WSHP Loop Controller GPC-XP Guide...

  • Page 31: Relay Output #6

    Configuration Configuring The Controller Relay Output #6 Relay Output #7 In this example Relay Output #6 is configured for the “Boiler Enable” In this example Relay Output #7 is configured for the “Request To Run” output. In Figure 30 Item #1 it indicates it has a Main Control Method output.
  • Page 32 Configuration Configuring The Controller Figure 32: Relay Output #8 Screen Figure 33: Analog Output #1 Screen WSHP Loop Controller GPC-XP Guide...

  • Page 33: Relay Output #8

    Configuration Configuring The Controller Relay Output #8 Analog Output #1 In this example Relay Output #8 is configured for the “System Active” In this example Analog Output #1 is configured for the “Tower Fan relay. In Figure 32 Item #1 it indicates it has a Main Control Method VFD”...
  • Page 34 Configuration Configuring The Controller Figure 34: Analog Output #2 Screen Figure 35: Analog Output #3 Screen WSHP Loop Controller GPC-XP Guide...

  • Page 35: Analog Output #2

    Configuration Configuring The Controller Analog Output #2 Analog Output #3 In this example Analog Output #2 is configured for the “System Pump In this example Analog Output #3 is configured for the “Mod Cooling” VFD” output. In Figure 34 Item #1 it indicates it has a Control Type of output.

  • Page 36: Analog Output #4

    Configuration Configuring The Controller Figure 36: Analog Output #4 Screen Item #7 shows that its calculation settings are: Analog Output #4 Calculation Interval (Controls Speed) = 3.0 Sec Proportional Control Window = 1.0° F In this example Analog Output #3 is configured for the “Mod Heating” output.
  • Page 37 Configuration Configuring The Controller Alarm Notification The GPC-XP can generate alarms for remote alarm notification if alarms have been enabled and Prism 2 is connected and running 24 hours a day. If an alarm condition occurs, the button in the upper right <ALARM>...

  • Page 38: Wattmaster Controls Inc

    Configuration Configuring The Controller WattMaster Controls Inc. Phone: 816-505-1100 8500 NW River Park Drive Fax: 816-505-1101 Parkville, Mo 64152 Toll Free: 866-918-1100 www.az2controls.com GPC-XP Controller - Configuration Worksheet Click The Box On The Right To Download The Latest Version Of Adobe Acrobat. Prepared By: ___________________________________________________ Date: _______________________ Project Name: _______________________________________________________________________________ Project Location: ____________________________________________________________________________...
  • Page 39 Configuration Configuring The Controller WattMaster Controls Inc. Phone: 816-505-1100 8500 NW River Park Drive Fax: 816-505-1101 Parkville, Mo 64152 Toll Free: 866-918-1100 www.az2controls.com GPC-XP Controller - Configuration Worksheet Project Name: _________________________________________________________________________________ Input/Output Configuration Relay Output Relay Output Description Type (User Config.) Rated 1 A @ 24 VAC) Lead Rly - Lead/Lag RLY1...
  • Page 40 Form: AZ2-WSLC-AGD-01B Printed in the USA July 2017 All rights reserved Copyright 2017 WattMaster Controls Inc. 8500 NW River Park Drive Parkville, MO 64152 Phone (816) 505-1100 www.az2controls.com Fax (816) 505-1101...

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