Hvac ZP4-ESP Installation Manual
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Hvac ZP4-ESP Installation Manual

Universal 2-position forced air zoning system
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Indianapolis, IN 46237

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Summary of Contents for Hvac ZP4-ESP

  • Page 1 Indianapolis, IN 46237...

  • Page 2: Table Of Contents

    Overview .............................. 3 Sequence of Operation ......................... 3 Design and Installation Guidelines ......................3 ZP4-ESP Panel Layout ..........................4 Installing and Wiring the ZP4-ESP Panel .................... 5-9 Warning! ............................ 5 Caution! ............................. 5 Mounting the Panel ........................5 System Power ..........................5 HVAC System ..........................

  • Page 3: Overview

    SEQUENCE OF OPERATION The panel allows a single HVAC unit to have up to four separate zones. Each zone is controlled by its own thermostat. When a zone thermostat calls for heating or cooling, the zones not calling will have their dampers powered closed, and the zones calling will have their dampers powered opened.

  • Page 4: Zp4-Esp Panel Layout

    9. STATIC PRESSURE SENSOR TERMINALS 30. ZONE 1 BYPASS JUMPER 10. SPARE 3 AMP FUSES 31. ZONE 2 BYPASS JUMPER 11. HVAC EQUIPMENT TERMINALS 32. ZONE 3 BYPASS JUMPER 12. 3 AMP FUSE PROTECTS THE RELAY CONTACTS 33. ZONE 4 BYPASS JUMPER 13.

  • Page 5: Installing And Wiring The Zp4-Esp Panel

    INSTALLING AND WIRING THE ZP4-ESP PANEL WARNING! 1. Turn power off to HVAC equipment and control panel during installation to prevent serious injury from electrical shock and/or damage to the system. 2. Use extreme care when making duct openings and handling sheet metal to avoid injury.

  • Page 6: Sensors

    Sensors SENSOR S terminals provide inputs for Discharge Air Sensor ( S), and Outdoor Temperature Sensor ( S) and Static Pressure Sensor (SPS). The DAS and OTS sensors are Type thermistors rated at 10K Ohms @ 77° F. Discharge Air Sensor Mount the discharge air sensor in the main supply duct out of the line of sight of the heat exchanger or cooling coil and upstream of any duct transitions or zone dampers.

  • Page 7: Sps Terminals

    The small amount of air allowed to bleed into selected non-calling zones eliminates air noise and ensures proper airflow through the HVAC system. This also prevents coil freeze up and high temperature issues. When all zones are satisfied, all zone dampers will go to the full open...

  • Page 8: Zone Thermostats

    Zone Thermostats The Panel has inputs for four zone thermostats. Each zone thermostat must be equipment compatible. W1/AUX W2/OB W1/AUX W2/OB W1/AUX W2/OB...

  • Page 9: Heat / 2 Cool Heat Pump Or Fossil Fuel

    W1/AUX W2/OB Zone Dampers The panel has dedicated terminals for each zone damper. Dampers have three-wire, floating point actuators rated at 2.5VA. NOTE: 3-wire dampers must be used with the ESP function that eliminates the need for a traditional bypass damper. 3-WIRE DAMPER ACTUATOR MOTOR...

  • Page 10: Panel Setup

    CONFIGURING PANEL FOR EQUIPMENT APPLICATION: Once all wiring is completed, the panel can be configured for the specific equipment application. The ZP4-ESP has a row of slide switches located on the printed circuit board along with a switch selection chart.

  • Page 11: Balance Point Adjustments

    BALANCE POINT ADJUSTMENTS: When used with a heat pump or dual fuel system and fitted with a ZPA-OTS outdoor sensor, the panel can provide both high and low balance point control. High Balance Point - The panel has a potentiometer marked HI BAL PT that is adjustable from 20°...

  • Page 12: Panel Time Delay Chart

    2. Make sure that the selector switches on the panel are in their proper position for the specific equipment application. 3. Temporarily disconnect the R wire from the panel to the HVAC system. 4. Apply 24 Volt power to the panel.
  • Page 13 18. Turn each zone thermostat off until the panel no longer displays any heating calls. 19. Turn off 24 volts to the panel and reconnect the R wire from the panel to the HVAC system. 20. Reapply 24 volts to the panel.

  • Page 14: Zp4-Esp Specifications

    26. The system fan should shut off and all zone LEDs will light confirming that the zone dampers are now in the full open position. 27. Place the zone thermostats in their normal operating mode and adjust setpoints and scheduling accordingly. ZP4-ESP SPECIFICATIONS: Enclosure: Aluminum Panel Dimensions: Height: 8.75”...

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