Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Johnson Controls 150
Summarization of Contents
IMPORTANT! READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
Outlines critical safety precautions for handling the equipment, emphasizing user responsibility and training.
SAFETY SYMBOLS
Explains the meaning of hazard symbols used throughout the document for clear communication of risks.
CHANGEABILITY OF THIS DOCUMENT
CHANGE BARS
Describes how revisions are indicated in the document using lines in the column area.
NOMENCLATURE
BASE MODEL NUMBER
Provides the structure and meaning of the base model number for identifying unit configurations.
SECTION 1 – INTRODUCTION
ECOLOGICAL AND ECONOMICAL DESIGN
Details the unit's design for energy efficiency and environmental considerations using HFC-410A refrigerant.
Condensing Section
Describes the components and design of the condensing section, including scroll compressors and circuiting.
Heating Section
Details the available heating options, including staged gas heat and electric heaters for efficient operation.
Air Management
Covers features like DWDI airfoil fans and building pressure control for optimal air handling and system performance.
Variable Frequency Drives
Explains how VFDs optimize system performance and reduce energy consumption by modulating fan speed.
Rooftop Controller
Describes the Simplicity Elite control system, its interface, and capabilities for unit management.
Electrical
Details electrical connection options like Single Point Power and Dual Point Power for flexible installation.
SECTION 2 – INSTALLATION
APPROVALS
Lists the certifications and approvals for the unit, including safety and installation standards.
LIMITATIONS
Outlines installation constraints, codes, and standards that must be followed for compliance.
UNIT INSPECTION
Provides instructions for inspecting the unit upon receipt to identify and report any shipping or installation damage.
LOCATIONS AND CLEARANCES
Details site selection criteria and required clearances for proper unit installation and service access.
RIGGING AND HANDLING
Provides essential guidelines for safe and proper rigging and handling of the unit to prevent damage and retain warranty.
UNIT WEIGHTS
Lists the weights of various unit configurations and options, crucial for rigging and structural planning.
Unit Placement
Covers methods for elevating units using curbs or steel, and considerations for ground-level installations.
PHYSICAL DATA
Presents detailed physical specifications for different unit sizes and configurations, including dimensions and capacities.
ELECTRICAL DATA
Provides essential electrical data, including load definitions, service sizing calculations, and voltage limitations.
CONDENSATE DRAIN
Details the condensate drain system, including piping requirements and trap installation to prevent water damage.
Thermostat
Explains how thermostats interface with the Simplicity control for CV and VAV units, detailing wiring connections.
COMMUNICATION
Details the Simplicity Unit Controller's communication capabilities using Modbus and BACnet protocols via adapters.
POWER WIRING
Outlines requirements for field power wiring, emphasizing compliance with NEC and local codes for electrical grounding and connections.
ELECTRICAL SERVICE SIZING
Provides detailed calculations for determining minimum circuit ampacity (MCA) and maximum overcurrent protection (MOP) per NEC standards.
DUCT SYSTEM
Provides guidelines for connecting ductwork, emphasizing flexibility, proper transitions, and avoiding friction losses.
GAS HEATING
Covers gas piping requirements, including sizing, material, and connection procedures according to codes.
SECTION 3 – START-UP
CHECKING THE SYSTEM PRIOR TO INITIAL START (NO POWER)
Lists crucial pre-start checks to ensure the system is ready for operation, covering visual inspections and electrical connections.
CRANKCASE HEATERS
Explains the function of crankcase heaters in preventing refrigerant migration and ensuring compressor lubrication during shutdown.
Verifying Compressor Rotation
Details the procedure for verifying proper compressor rotation to prevent failure due to reverse operation.
INITIAL START‑UP
Guides the user through the initial unit start-up process after all checks are completed and controls are programmed.
Gas Heat Models
Covers pre-start and post-start checks specific to gas heat operation, including leak detection and manifold gas pressures.
SECTION 4 – MAINTENANCE
PERIODIC MAINTENANCE – MONTHLY
Outlines monthly maintenance tasks, including checking filters, linkages, and compressor oil levels.
Fan Bearing Lubrication
Explains the procedure for lubricating fan bearings, including grease type, frequency, and technique.
Condenser Coils
Advises on the importance of keeping condenser coils clean for optimal performance and efficiency.
PERIODIC MAINTENANCE – THREE TO SIX MONTHS
Details maintenance tasks recommended every three to six months, such as checking belt tension and motor lubrication.
PERIODIC MAINTENANCE – YEARLY
Lists annual maintenance checks, including inspecting fan wheels, drain pans, and observing damper operation.
Sheave Alignment
Describes the process for checking and correcting sheave alignment to prevent premature wear on belts and bearings.
Belt Replacement
Offers step-by-step instructions for replacing belts as a set, including tensioning and alignment checks.
Filter Drier Replacement
Explains when and how to replace the filter/drier, including procedures for units with and without valve packages.
Forward Curved Fans
Details the procedure for removing, cleaning, and reinstalling forward curved fan wheels to maintain balance.
Fan Shaft Bearings
Describes how to remove, replace, and install fan shaft bearings, emphasizing shaft cleanliness and proper alignment.
Bearing Lock Devices
Explains various types of devices used to lock bearings to fan shafts, including setscrew and eccentric types.
SECTION 5 – SEQUENCE OF OPERATION
UNIT TYPE
Explains how the Simplicity Control configures for Constant Volume (CV) or Variable Air Volume (VAV) operation based on installed components.
OCCUPIED / UNOCCUPIED MODE
Describes four methods for placing the unit in occupied or unoccupied modes, including digital inputs and space sensors.
CONSTANT VOLUME MODE (CV)
Details the four control methods for CV units, prioritizing thermostat input for managing cooling and heating operations.
Thermostat Input
Explains how the Simplicity Control receives cooling and heating inputs from thermostats and the required parameter programming.
Occupied Cooling
Describes how compressor stages are energized for occupied cooling based on thermostat input, detailing staging logic and delays.
Space Sensor – Hard Wired or Communicated
Details system parameters that must be programmed for VAV operation using space sensors for temperature control.
Cooling Operation – Occupied or Unoccupied
Explains how the Simplicity Control stages cooling based on space temperature and timing functions, including minimum on/off times.
Heating Operation – Occupied or Unoccupied
Describes how the Simplicity Control stages heating based on space temperature and includes heating timing functions like minimum on/off times.
COMPRESSOR STAGING
Describes how the Unit Controller stages compressors for operation based on demand and system configurations.
CONDENSER FAN OPERATION
Explains how condenser fans are activated based on compressor operation and discharge pressure, including VFD control.
COOLING COMPRESSOR LOCKOUT
Details the feature that prevents mechanical cooling below a specified outdoor temperature setpoint.
ECONOMIZER
Introduces economizer operation and its control methods: Dry Bulb, Single Enthalpy, and Dual Enthalpy.
COMFORT VENTILATION
Details the Comfort Ventilation mode, which uses the economizer to maintain supply air temperature within specified setpoints.
EXCESSIVE SAT (SUPPLY AIR TEMPERATURE) CONTROL
Explains how this feature prevents excessively low or high supply air temperatures in Constant Volume units.
Demand Ventilation
Explains how the system monitors CO2 levels and modulates the outdoor air damper to maintain IAQ setpoints.
PRE-OCCUPANCY PURGE
Explains the feature that purges conditioned space air by running the blower and opening the economizer damper before occupancy.
HOT GAS BY PASS
Describes the function of hot gas bypass in placing artificial load on the evaporator coil to maintain suction pressure and prevent icing.
SPACE TEMPERATURE ALARM
Covers alarms generated when space temperature trends away from the setpoint for a defined duration, indicating potential control issues.
SAT ALARM FOR HEATING
Details the alarm for supply air temperature dropping below setpoint in heating mode, potentially modifying ventilation air.
SAT ALARM FOR COOLING
Explains the alarm for supply air temperature exceeding setpoint in cooling mode, potentially modifying ventilation air.
ALARM HISTORY
Explains how to view the last five alarms on the Simplicity Elite control board and via the Simplicity PC software.
SECTION 6 – USER INTERFACE
INTERFACE METHODS
Outlines the three methods for interfacing with the Simplicity Elite control: buttons, PC software, and network communication.
UNIT CONTROLLER INTERFACE
Describes the four buttons and two displays on the control board for accessing setpoints, alarms, and functions.
PROGRAM BUTTON
Explains how to use the PROGRAM button to enter programming mode, navigate parameters, and change settings.
TEST/UP BUTTON
Details the functions of the TEST/UP button for skipping delays, releasing lockouts, and scrolling through parameters.
ADDRESS / DOWN BUTTON
Explains the use of the ADDRESS/DOWN button for scrolling parameters and setting up network addresses.
ALARM / CHANGE
Describes how to use the ALARM/CHANGE button to view alarms and accept or store parameter changes.
COMMUNICATION USING SIMPLICITY PC
Provides instructions for connecting to the Simplicity Control using a PC and the Simplicity PC software.
Simplicity PC Download
Guides users on how to download the Simplicity PC software from the York website.
USB Adapter Drive - Simplicity Pocket PC
Explains how to connect the Unit Controller to a computer via USB using a specific adapter and cable.
Establishing Communication
Details the steps for establishing communication between the computer and the Simplicity Control, including selecting connection types and port numbers.
Simplicity PC Data Screens
Introduces the data screens available in the Simplicity PC software, organized by tabs for different functions.
SENSOR READINGS
Shows current sensor readings for temperature, humidity, pressure, and IAQ, providing real-time operational data.
ECONOMIZER/EXHAUST
Lists parameters and statuses related to economizer and exhaust fan operation, including damper positions and VFD settings.
FANS
Displays parameters and statuses for fan operation, including VFD outputs, delays, and setpoints for cooling and heating.
COOLING SETUP
Contains parameters for configuring cooling modes, compressor staging, temperature limits, and economizer settings.
COOLING STATUS
Shows the current status of compressors, economizer, and fan delays during cooling operation, including safety status indicators.
HEATING SETUP
Includes parameters for configuring heating modes, stages, temperature limits, and comfort ventilation settings.
HEATING STATUS
Displays the current status of heating outputs, gas valves, limit switches, and fan delays during heating operation.
SYSTEM OPTIONS
Lists parameters for enabling and configuring system-wide features like Intelli-Start, pre-occupancy purge, and fault overrides.
OUTPUTS/STATUS
Shows the current status of unit outputs and accumulated run times for components like fans, compressors, and heating stages.
INPUTS
Lists the status of various unit inputs, including cooling/heating calls, fan status, and sensor inputs.
COMFORT/DEMAND VENTILATION
Contains parameters for configuring comfort ventilation and demand ventilation (IAQ) settings, including IAQ sensor range and setpoints.
CLOCK
Allows for updating the unit's clock, setting daylight savings time, and managing time-based schedules.
Weekly Schedule
Enables programming of weekly schedules with two occupied and two unoccupied times per day, including holiday schedules.
Holiday Schedule
Allows programming of up to 20 holiday schedules, specifying start dates, times, and durations for non-standard operation.
ALARMS
Lists active and historical alarms, providing descriptions and codes for troubleshooting unit faults.
Revising Settings
Provides instructions on how to navigate and modify parameter values using the unit controller interface or software.
SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS
ACCUMULATED UNOCCUPIED OVERRIDE TIME
Defines the parameter that tracks the total time the unit has operated in the unoccupied override mode.
ACTIVE ALARM
Defines the parameter that indicates the number of active alarms currently present on the unit.
ADDRESS
Defines the parameter for setting the communication address when the unit is connected to a network.
APS DATA
Defines the parameter that provides the status of the supply fan air proving switch.
BUILDING PRESSURE SETPOINT
Defines the parameter that establishes the building pressure setpoint for controlling exhaust operation.
COMFORT VENTILATION FOR COOLING ENABLED
Defines the parameter to enable Comfort Ventilation during cooling mode for Constant Volume units.
DUCT PRESSURE SETPOINT
Defines the setpoint used by the controller to vary supply fan speed for VAV duct static pressure maintenance.
ECONOMIZER INSTALLED
Defines the parameter required to enable economizer operation on the unit.
EXHAUST VFD INSTALLED
Defines the parameter to identify that an exhaust fan VFD is installed, enabling its control features.
HEAT 1 (W1)
Defines the status of the binary input for the first stage heating (W1) to the Unit Controller.
HYDRONIC HEATING ENABLED
Defines the parameter to enable hydronic heating operation on the unit.
IAQ SENSOR RANGE
Defines the parameter that identifies the range of the CO2 sensor in PPM, used for demand ventilation.
INTELLI-START OPERATION ENABLE
Defines the parameter to enable Intelli-Start, which brings the unit to setpoints before occupied operation.
LOADSHED
Defines the feature to reduce electrical consumption by temporarily turning off active compressors via a communicated input.
MORNING Warm up ENABLE
Defines the parameter to enable the morning warm-up operation for heating the space before occupancy.
OCCUPIED INPUT ENABLED
Defines the parameter to enable hard-wired or communicated occupied input, or disable for scheduling features.
OUTDOOR AIR TEMP COOLING LOCKOUT
Defines the setpoint that locks out cooling operation when the outdoor temperature is below it.
SPACE SENSOR FAULT OVERRIDE ENABLE
Explains how to enable an override for space sensor faults, allowing the unit to use return air temperature instead.
VAV OCCUPIED HEATING ENABLED
Defines the parameter to enable occupied heating operation for VAV units.
VAV SUPPLY AIR TEMP RESET SETPOINT
Defines the setpoint used by the controller to adjust VAV cooling supply air temperature based on space or return air temperature.
SECTION 8 – SERVICE
ANALOG INPUT OPERATION
Describes the function of analog inputs used by the controller to monitor unit parameters like temperature and pressure.
Temperature Sensors
Lists the types of temperature sensors and their relationship to voltage output and resistance, referencing a table for details.
Duct Pressure Transducer
Explains the function and installation of the duct pressure transducer for sensing static pressure in the supply duct.
Building Pressure Transducer
Details the building pressure transducer's function in sensing building static pressure for exhaust control and its installation requirements.
Return Fan Pressure Transducer
Describes the return fan pressure transducer's role in maintaining correct differential pressure in the return compartment for fan speed control.
Discharge Pressure Transducer
Explains the discharge pressure transducer's function in sensing pressure for condenser fan control during cooling operations.
Suction Pressure Transducer
Describes the suction pressure transducer's role in sensing pressure for evaporator superheat calculation and display.
CO2 Sensor
Details the use of CO2 sensors in conjunction with Demand Ventilation to monitor and adjust outdoor air intake based on indoor CO2 levels.
Furnace Status Input
Explains how the Unit Controller monitors staged gas heat operation and displays status via the User Interface.
FAULTS AND LOCKOUTS
Describes the unit's fault and lockout conditions, including LED indicators and alarm code descriptions.
Alarm Codes
Lists and describes various alarm codes, categorizing critical vs. non-critical alarms and how to recall them.
Refrigerant System Alarm Codes (01, 02, 03, 04, 09, 10, 11, 12)
Details specific refrigerant system alarm codes related to high and low-pressure cutouts and compressor motor protection.
Low Pressure Cutout Alarm (09, 10, 11, 12)
Explains low-pressure cutout alarms, their conditions, and how they affect compressor operation and system lockout.
Gas Heating Alarms (16, 17, 18)
Describes gas heating alarms related to ignition control failures and gas valve issues, impacting furnace operation.
Supply Air Temperature Cooling Alarm (38)
Alarms when supply air temperature is excessively high during cooling, considering compressor stage duration and outdoor air conditions.
Supply Air Temperature Heating Alarm (39)
Alarms when supply air temperature is excessively low during heating, considering stage duration and outdoor air conditions.
Economizer Minimum Position Alarm (40)
Covers economizer alarms related to minimum position when outdoor air is warmer than setpoint and SAT falls below setpoint.
Space Temperature Trending Alarm (41)
Alarms generated when space temperature trends away from setpoint for a specified duration, indicating potential control issues.
Duct Static Low Pressure Alarm (42)
Initiates on VAV units if duct static pressure is below 0.05" WC after 35 seconds of fan operation, leading to lockout.
Hot Water Coil Freeze Alarm (43)
Indicates the hydronic freeze stat switch has opened, typically due to low return air temperature.
Need help?
Do you have a question about the 150 and is the answer not in the manual?
Questions and answers