EasyManua.ls Logo

Daikin RCS 015D User Manual

Daikin RCS 015D
152 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Installation and Maintenance Manual IM 893-10
Group: Applied Air Systems
Part Number: IM 893
Date: July 2017
RoofPak
®
Singlezone Heating and Cooling Units
RPS/RDT/RFS/RCS 015D—140D
with MicroTech
®
III Unit Controller and Refrigerant R-410A

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the Daikin RCS 015D and is the answer not in the manual?

Daikin RCS 015D Specifications

General IconGeneral
BrandDaikin
ModelRCS 015D
CategoryAir Conditioner
LanguageEnglish

Summary

Introduction

Unit Nameplate

Details found on the unit's nameplate, including model, serial, and electrical characteristics.

Compressor Nameplate

Information located on compressor nameplates for tandem and trio compressor designs.

Gas Burner Nameplate

Details about the gas burner nameplate, including model, input, and temperature rise.

Hazard Identification Information

Explanation of symbols used for hazards (Danger, Warning, Caution) and their implications.

Unit Description

Typical Component Locations

Illustrates the placement of major unit components within the RPS and RDT models.

Refrigeration Piping

Circuit Schematic

A diagram illustrating the flow of the refrigeration circuit with labeled components.

Condenser Piping, Scroll Compressors

Illustrates the piping configuration for scroll compressors in the condenser section.

Control Locations

Control Locations—RPS units

Diagram showing the locations of control components within RPS units.

Control Locations—RDT Units

Diagram showing the locations of control components within RDT units.

Control Panel

Control Panel Locations

Diagrams illustrating the locations of various control panels on the unit.

Control Panel (continued)

Typical Main Control Panel, 045D to 075D, 460 Volt

Diagram of a typical main control panel for specific unit sizes and voltage.

Control Panel (continued)

Typical Main Control Panel, 080D to 140D, 460 Volt

Diagram of a typical main control panel for larger unit sizes and voltage.

Control Panel (continued)

Typical Gas Heat Panel

Diagram illustrating the components within a typical gas heat control panel.

Typical Prop Exhaust Panel

Diagram illustrating the components within a typical propeller exhaust fan panel.

VFD Bypass Panel

Diagram illustrating the components within a VFD bypass panel.

Control Panel (continued)

RCS Control Panel with MicroTech III

Diagram of the RCS control panel equipped with MicroTech III.

Control Panel (continued)

Electric Heat Panel

Diagram illustrating the components within an electric heat panel.

VFD Compressor Panel

Diagram illustrating the components within a VFD compressor panel.

Control Panel (continued)

Harness Plug Connector Detail

Detailed illustration of various harness plug connectors and their labels.

Controls, Settings and Functions

Table 2: Controls, Settings, and Functions

Lists controls, their descriptions, reset methods, locations, settings, and part numbers.

FanTrol

Table 3: R-410A FanTrol Setpoints in °F with MicroTech III Controls

Table showing FanTrol setpoints and differentials for various unit sizes and controls.

FanTrol (continued)

Table 4: R-410A Fan Cycling Setpoints in °F with No Controls

Table showing fan cycling setpoints and differentials without specific controls.

Condenser Fan Arrangement

Table 5: Condenser Fan Arrangement

Shows condenser fan numbering conventions and locations for each unit size.

Mechanical Installation

Receiving Inspection

Procedures for inspecting equipment upon receipt for damage and accuracy.

Unit Clearances

Specifies the required minimum clearances around the unit for operation and service.

Service Clearance

Details the clearance required for accessing serviceable components and performing maintenance.

Mechanical Installation (continued)

Ventilation Clearance

Recommendations for maintaining adequate ventilation clearances around the unit.

Overhead Clearance

Requirements for overhead obstructions relative to the unit and its components.

Roof Curb Assembly and Installation

RCS Assembly instructions

Step-by-step instructions for assembling the RCS roof curb.

Roof Curb Assembly and Installation (continued)

RPS/RDT Assembly instructions

Step-by-step instructions for assembling the RPS/RDT roof curb.

Roof Curb Assembly and Installation (continued)

Table 6: RPS/RFS Roof Curb Assembly Dimensions

Table providing dimensions for RPS/RFS roof curb assembly based on unit size.

Figure 25: Typical Power Wire Entrance, Curb View

Diagram illustrating the typical power wire entrance location on the curb.

Post and Rail Mounting

Rigging and Handling

Instructions and precautions for rigging and handling the unit safely.

Lifting Points

Installation

Details on determining lift requirements and installation procedures.

Reassembly of Split Units

RPS Factory Split at Fan

Details on splitting and reassembling RPS units at the fan section.

Phase I. Set sections

Steps for setting unit sections during the reassembly process.

Reassembly of Split Units (continued)

Phase II. Reassemble cabinet

Steps for reassembling the unit cabinet after splitting.

Reconnect Power and Control Wiring

Phase III. Reconnect Power and Control Wiring

Steps for reconnecting power and control wiring after unit sections are joined.

RFS/RCS Permanent Split Systems

Piping Recommendations

Guidelines and recommendations for refrigerant piping installation.

Piping Connections, RFS/RCS Units

Table 9: 015D – 140D Connection Sizes and Locations

Table specifying refrigerant connection sizes and locations for various unit models.

Table 10: 015D – 140D Piping Diameter

Table detailing refrigerant piping diameters for various unit sizes.

Holding Charge

Leak Testing

Procedure for testing the refrigeration system for leaks.

Evacuation

Steps for evacuating the refrigeration system to remove moisture and non-condensables.

Refrigerant Charge

Table 11: Approximate R-410A Refrigerant Charge per Circuit, 015D to 140D

Table showing approximate refrigerant charge amounts for each circuit.

Table 12: Weight of Refrigerant in Copper Lines

Table showing refrigerant weight in copper lines based on size and type.

Charging the System

Table 13: Pressure-Vacuum Equivalents

Table relating pressure and vacuum readings to temperature and boiling point of water.

Refrigerant Charge

Field Charging Procedure

Steps and guidelines for charging the system in the field.

Table 15: Typical Subcooling Operating Values

Table providing typical subcooling operating values based on outdoor ambient temperature.

Refrigeration Service Valves

Description of refrigeration service valves provided with the unit.

Unit Piping

Condensate Drain Connection

Details on connecting the condensate drain line, including P-trap requirements.

Hot Water Coil Piping

Instructions and considerations for piping hot water coils.

Unit Piping (continued)

Steam Coil Piping

Instructions for piping steam coils, including connections and pitch.

Steam Piping Recommendations

Recommendations for proper steam piping installation to prevent damage.

Steam Trap Recommendations

Recommendations for selecting and installing steam traps.

Steam Coil Freeze Conditions

Damper Assemblies

Overview of optional damper assemblies, including actuators and linkages.

Economizer Dampers

Description and adjustment procedures for economizer dampers.

Damper Assemblies (continued)

Intake Hood Damper (0% to 100% outside air)

Description of intake hood dampers controlled by a single actuator for 100% outside air.

Intake Hood Damper (0% to 30% outside air)

Description of intake hood dampers for fixed position fresh air quantity control.

Cabinet Weather Protection

Installing Ductwork

Procedures and considerations for installing ductwork to the unit.

Installing Duct Static Pressure Sensor Taps

Figure 45: Static Pressure Tubing Entrance Location

Diagram showing the static pressure tubing entrance location into the unit.

Figure 46: Pressure Sensing Tubing Installation

Diagram illustrating the installation of pressure sensing tubing.

Installing Building Static Pressure Sensor Taps

Building Pressurization Applications

Recommendations for installing taps for building pressurization control.

Lab Pressurization Applications

Recommendations for installing taps for lab pressurization control.

Field Power Wiring

Figure 47: RPS/RDT and RFS Power Wiring Connections

Diagram of power wiring connections for RPS, RDT, and RFS units.

Figure 48: Optional Side Power Wiring Entrance

Diagram illustrating the optional side power wiring entrance.

Field Power Wiring (continued)

RCS Units

Details on power wiring connections for RCS units.

Figure 49: Typical Power Wire Entrance, Unit View

Diagram showing the typical power wire entrance for RPS units.

Field Power Wiring (continued)

Figure 50: RCS 050D to 140D Power Wiring Connections

Diagram of power wiring connections for RCS units from 050D to 140D.

Table 16: Multiple Point Power Connection Options

Table detailing various multiple point power connection options.

Table 17: RPS/RFS/RCS/RDT Recommended Power Wiring

Table specifying recommended power wiring sizes for different ampacities.

Field Control Wiring

RPS, RDT, and RFS Units

Details on making field control wiring connections for RPS, RDT, and RFS units.

RFS/RCS Units

Details on control wiring between RFS and RCS units.

Figure 51: RDT, RFS, RPS Field Wiring Connections

Diagram illustrating field wiring connections for RDT, RFS, and RPS units.

Figure 52: Control Wiring Raceway

Diagram illustrating the routing and installation of the control wiring raceway.

Figure 53: RFS and RCS Interconnecting Control Wiring

Diagram showing the interconnecting control wiring between RFS and RCS units.

Preparing Unit for Operation

Releasing Spring Mounts

Instructions for releasing spring mounts on fans before unit operation.

Adjusting Spring Mounts

Instructions for properly adjusting spring mounts for fan operation.

Preparing Unit for Operation (continued)

Relief Damper Tie-Down

Instructions for removing relief damper tie-down brackets before operation.

Adjustment of Seismic Restraints

Procedure for adjusting seismic restraints on spring-mounted fans.

Preparing Unit for Operation (continued)

Adjusting Scroll Dampers

Instructions for adjusting scroll dampers for air volume control.

Adjusting Supply Fan Thrust Restraints

Instructions for adjusting supply fan thrust restraints.

Sequences of Operation

Power-up

Description of the unit's initial power-up sequence and component energization.

Fan Operation

Details the sequence of operation for the supply and return fans.

Sequences of Operation (continued)

Economizer Operation

Description of the economizer operation sequence based on enthalpy and temperature.

Fixed Speed Compressor Operation

Description of the staging sequence for fixed speed compressors.

Cross Circuit Loading

Explanation of how cooling load is distributed across refrigerant circuits.

Wiring Diagrams

Legend

Explanation of symbols and abbreviations used in wiring diagrams.

Wiring Diagrams (continued)

Legend (continued)

Continues the explanation of symbols and abbreviations used in wiring diagrams.

Wiring Diagrams (continued)

General Notes

General notes and guidelines pertaining to the wiring diagrams.

Wiring Diagrams (continued)

Figure 60: VAV Fan Power

Wiring diagram illustrating VAV fan power with SAF, RAF VFDs, and unit powered outlet/light.

Wiring Diagrams (continued)

Figure 60 continued: VAV Fan Power

Continues the wiring diagram for VAV fan power.

Wiring Diagrams (continued)

Figure 61: Constant Volume Fan Power

Wiring diagram illustrating constant volume fan power for SAF and RAF.

Wiring Diagrams (continued)

Figure 61 continued: Constant Volume Fan Power

Continues the wiring diagram for constant volume fan power.

Wiring Diagrams (continued)

Figure 62: RPS 074 Condensing Unit Power

Wiring diagram for RPS 074 condensing unit power with VFD compressors.

Wiring Diagrams (continued)

Figure 63: RPS 075 Condensing Unit Power

Wiring diagram for RPS 075 condensing unit power with SpeedTrol and fixed scroll compressors.

Wiring Diagrams (continued)

Figure 64: VFD Control

Wiring diagram illustrating VFD control for SAF and RAF.

Wiring Diagrams (continued)

Figure 65: VAV Control Inputs

Wiring diagram illustrating VAV control inputs to the main control board.

Wiring Diagrams (continued)

Figure 65 continued: VAV Control Inputs

Continues the wiring diagram illustrating VAV control inputs.

Wiring Diagrams (continued)

Figure 66: HTD Gas Burner Schematic

Wiring diagram illustrating the schematic for the HTD gas burner.

Wiring Diagrams (continued)

Figure 66 continued: HTD Gas Burner Schematic

Continues the wiring diagram illustrating the HTD gas burner schematic.

Wiring Diagrams (continued)

Figure 67: Electric Heat Control

Wiring diagram illustrating the control schematic for electric heat.

Wiring Diagrams (continued)

Figure 67 continued: Electric Heat Control

Continues the wiring diagram illustrating the electric heat control schematic.

Wiring Diagrams (continued)

Figure 68: RPS 061 Condensing Unit Control

Wiring diagram for RPS 061 condensing unit control with fixed speed compressors.

Wiring Diagrams (continued)

Figure 68 continued: RPS 061 Condensing Unit Control

Continues the wiring diagram for RPS 061 condensing unit control.

Wiring Diagrams (continued)

Figure 69: RPS 074 Condensing Unit Control

Wiring diagram for RPS 074 condensing unit control with variable speed inverter compressors.

Wiring Diagrams (continued)

Figure 69 continued: RPS 074 Condensing Unit Control

Continues the wiring diagram for RPS 074 condensing unit control.

Wiring Diagrams (continued)

Figure 70: RPS 074 Compressor Control

Wiring diagram for RPS 074 compressor control with variable speed inverter compressors.

Wiring Diagrams (continued)

Figure 68 continued: CV Fan Control

Continues the wiring diagram for Constant Volume (CV) fan control.

Figure 71: Light and Receptacle Power

Wiring diagram illustrating power supply for lights and receptacles.

Unit Options

Control Actuators

Describes the function and control of damper and valve actuators.

Enthalpy Control

Explains the electromechanical enthalpy control device and its settings.

Table 18: Enthalpy Control Settings

Table of enthalpy control settings and corresponding temperature points.

Unit Options (continued)

Differential Enthalpy Control (OAE/RAE)

Describes the optional electric differential enthalpy control arrangement.

Ground Fault Protection

Explains the ground fault protection system designed to protect motors.

Phase Voltage Monitor

Describes the phase voltage monitor system for protecting loads from power conditions.

Unit Options (continued)

Modulating Hot Gas Reheat

Explains the modulating hot gas reheat function used in dehumidification mode.

Figure 74: Dual 2-Way Valve Refrigeration Schematic

Refrigeration schematic illustrating the dual 2-way valve system for hot gas reheat.

Unit Options (continued)

Dehumidification Initiation

Describes how dehumidification operation is initiated based on sensor inputs.

Dehumidification Termination

Describes the conditions under which dehumidification operation terminates.

Control & Arrangement

Details on MHGRH control, reheat valves, and compressor staging.

Unit Options (continued)

Hot-Gas Bypass (HGBP)

Explanation of the hot-gas bypass system for low suction and frosting protection.

External Time Clock

Information on using an external time clock for scheduling unit operation.

Unit Options (continued)

Smoke and Fire Protection

Information on optional smoke and fire protection systems.

Smoke Detectors

Details on factory-installed smoke detectors and their wiring.

Emergency Shutdown

Information on using terminals for emergency shutdown.

Unit Options (continued)

Freeze Protection

Information on the optional freezestat and its operation.

External Time Clock or Tenant Override

Methods for switching the unit between occupied and unoccupied modes.

Unit Options (continued)

Field Output Signals

Available outputs for field connections to external devices.

VAV Box Signal/Fan Operation Signal

Details on using Digital Output #10 for VAV box or fan operation signals.

VAV Box Output

Description of the VAV box output signal and its behavior in different modes.

Unit Options (continued)

Entering Fan Temperature Sensor

Information on the EFT sensor and its role in airflow and heating problems.

Duct High Pressure Limit

Description of the DHL control that protects ductwork from over-pressurization.

Convenience Receptacle/Section Lights

Details on GFCI receptacles and optional section lights.

Unit Options (continued)

Optional Low Ambient Compressor Operation

Details on compressor operation at low ambient temperatures.

Figure 80: R-410A Speedtrol

Diagram illustrating the R-410A Speedtrol system for condenser fan control.

Figure 81: Speedtrol Operating Characteristics

Characteristics of Speedtrol operation for fixed speed compressor units.

Unit Options (continued)

Condenser Fan Operation for Variable Speed Compressor Option

Describes condenser fan operation for units with variable speed compressor options.

Figure 82: Speedtrol Operating Characteristics

Characteristics of Speedtrol operation for variable speed inverter compressor units.

Figure 83: Speedtrol Operating Characteristics

Characteristics of Speedtrol operation with start-stop control.

Unit Options (continued)

DesignFlow™ Outdoor Air Damper Option

Description of the DesignFlow airflow measurement station option.

DesignFlow Station Startup

Procedure for starting up the DesignFlow station before unit operation.

Figure 84: DesignFlow Station

Illustration of the DesignFlow station, showing the vane and intake.

Unit Options (continued)

Figure 85: Tape Fulcrum Alignment Plate to Vane

Diagram showing how to tape the fulcrum alignment plate to the DesignFlow vane.

Figure 86: Place Leveling Weight on Fulcrum

Diagram showing how to place the leveling weight on the fulcrum for alignment.

Unit Options (continued)

Making Level Adjustments

Instructions for making level adjustments to the DesignFlow unit.

Figure 87: DesignFlow Frame

Diagram illustrating the DesignFlow frame assembly and adjustment points.

Figure 88: Remove Covers from Access Opening

Diagram showing how to remove covers from the access opening.

Figure 89: Leveling Adjustment

Diagram illustrating the leveling adjustment mechanism for the DesignFlow unit.

Unit Options (continued)

Propeller Exhaust Fan Option

Information on propeller exhaust fan options for economizer units.

Figure 90: Two Fans with Back Return Shown

Diagram showing two fans with a back return configuration.

Figure 91: Fan Rotation

Diagram illustrating the correct fan rotation direction.

Damper Counterbalance Adjustment

Instructions for adjusting damper counterbalance for optimal effect.

Unit Options (continued)

Adjustment #1

Instructions for making adjustment #1 to dampers for full open balance.

Adjustment #2

Instructions for making adjustment #2 to dampers for closed position balance.

Belts

Information on belt maintenance, tension, and pulley alignment.

Figure 92: Counterbalance Adjustment

Diagram illustrating counterbalance adjustment points.

Figure 93: Belt Adjustment

Diagram illustrating belt adjustment procedures.

Figure 94: Drive Pulley Alignment

Diagram illustrating proper drive pulley alignment.

Unit Options (continued)

Table 19: Propeller Exhaust Fan Troubleshooting

Troubleshooting guide for propeller exhaust fan problems.

Figure 95: Propeller Exhaust Fan Replacement Parts List

Parts list for propeller exhaust fans, with numbered components.

Unit Options (continued)

Bearings

Information on fan bearing inspection, lubrication, and maintenance.

Fasteners and Setscrews

Information on checking fasteners and setscrews for tightness.

Lubrication

Details on motor and bearing lubrication procedures.

Removing Dust/Dirt

Procedures for cleaning fan components and removing dust or dirt.

Exhaust Fan ON/OFF Control

Control logic for exhaust fans based on system pressure and damper position.

Ultraviolet Lights Option

Description of the ultraviolet lights option for coil and drain pan sanitation.

Figure 96: Typical Ultraviolet Light Installation

Diagram illustrating the typical installation of ultraviolet lights.

Unit Options (continued)

Ultraviolet Light Operation

Explanation of how ultraviolet lights operate and are controlled.

Figure 97: Typical Ultraviolet Light Wiring Schematic

Wiring schematic illustrating the operation of ultraviolet lights.

Unit Options (continued)

MicroTech III Remote User Interface

Description of the remote user interface for Daikin rooftop systems.

Features

Key features of the MicroTech III remote user interface.

Figure 98: Remote User Interface

Image of the MicroTech III remote user interface unit.

Figure 99: Process Bus Wiring Connections

Diagram illustrating process bus wiring connections for remote interfaces.

Unit Options (continued)

Figure 100: Specifications and Connections

Specifications and connection details for the remote user interface.

Unit Options (continued)

VFD Compressor Operation

Explanation of how VFD compressors operate and modulate capacity.

Table 20: VFD Compressor Modulation Ranges

Table detailing VFD compressor modulation ranges for various models.

Figure 101: VFD Compressor Modulation Signal

Diagram showing the VFD compressor modulation signal in Volts DC.

Unit Options (continued)

VFD Compressor Control

Details on controlling the VFD compressor using digital and analog signals.

Compressor Stage Up Transition

Describes the transition sequence when staging up compressors with VFD.

Compressor Stage Down Transition

Describes the transition sequence when staging down compressors with VFD.

Dehumidification Transition During Cooling State

Transition sequence when dehumidification becomes active during cooling.

Unit Options (continued)

Oil Boost Operational Sequence

Sequence of operation for the VFD compressor oil boost state.

VFD Compressor Protection Unloading Control

Protection controls for VFD compressors to prevent damage.

High Pressure Unloading Control

Control logic for unloading the VFD compressor due to high discharge pressure.

Unit Options (continued)

High Discharge Line Temperature Unloading Control

Control logic for unloading the VFD compressor due to high discharge line temperature.

Low/High Discharge Superheat

Information on monitoring and controlling discharge superheat for VFD compressors.

Manual Control (with VFD Compressor)

Options for manually controlling the VFD compressor for service.

Table 21: VFD Compressor Winding Resistance

Table listing VFD compressor winding resistance values.

Unit Options (continued)

Condenser Coil Splitter Solenoid Valve Control

Control logic for the condenser coil splitter solenoid valve.

VFD Compressor Emergency Stop Control

Emergency stop control function for VFD compressors.

Unit Options (continued)

Variable Speed Scroll Compressor

General information on variable speed scroll compressors and their benefits.

Figure 102: Compressor Nameplate Information

Diagram illustrating the information found on a compressor nameplate.

Figure 103: Compressor Components

Diagram illustrating the main components of a compressor.

Unit Options (continued)

Oil Injection Control

Details on the oil injection control system for VFD compressors.

Optical Oil Level Sensor

Description of the optical oil level sensor used to monitor compressor oil.

Figure 104: Assembly Components

Diagram showing the assembly components of the oil injection control.

Figure 105: Oil Injection Control Dismanteling

Diagram showing how to dismantle the oil injection control.

Figure 106: Sightglass for Optical Oil Sensor/Switch

Diagram of the sightglass used with the optical oil sensor/switch.

Figure 107: Optical Oil Level Sensor/Switch

Diagram of the optical oil level sensor/switch.

Unit Options (continued)

Variable Frequency Drive for VFD Compressor

Information regarding the variable frequency drive used for VFD compressors.

Basic Operation of Compressor Drive

Basic operational steps for the VFD compressor drive.

Table 22: Compressor Drive Model & Frame Size

Table listing compressor drive models and their corresponding frame sizes.

Check, Test, and Start

Check, Test and Start Procedures

General procedures for checking, testing, and starting the unit.

Servicing Control Panel Components

Safety precautions for servicing control panel components.

Before Start-up

List of essential checks and verifications to perform before unit start-up.

Check, Test, and Start (continued)

Power Up

Steps for powering up the unit controller and associated systems.

Fan Start-up

Procedures for starting the supply and return fans.

Economizer Start-up

Procedures for starting and verifying the economizer system.

Check, Test, and Start (continued)

Compressor Startup

Procedures for safely starting the unit's compressors.

Scroll Compressor Rotational Direction

How to check and verify the correct rotational direction of scroll compressors.

Check, Test, and Start (continued)

Expansion Valve Superheat Adjustment

Procedure for adjusting the expansion valve superheat setting.

Checking Superheat

Recommendations for checking superheat levels on refrigeration circuits.

Check, Test, and Start (continued)

Heating System Startup

Procedures for starting heating systems including gas, electric, steam, and hot water.

Air Balancing

Procedures for performing air balancing on the unit's fans.

Drive Belt Alignments

Sheave Alignment

Instructions for ensuring proper alignment of drive sheaves.

Drive Belt Adjustment

Instructions for adjusting drive belt tension.

General Rules of Tensioning

General guidelines and rules for proper belt tensioning.

Tension Measurement Procedure

Steps for measuring belt tension accurately.

Figure 109: Sheave Alignment

Diagram illustrating the process of sheave alignment.

Figure 110: Drive Belt Adjustment

Diagram illustrating the procedure for drive belt adjustment.

Mounting and Adjusting Motor Sheaves

VM and VP Variable Pitch Sheaves

Instructions for mounting and adjusting VM and VP variable pitch sheaves.

Figure 111: VM and VP Variable Pitch Sheaves

Diagram of VM and VP variable pitch sheaves, showing components.

Mounting and Adjusting Motor Sheaves (continued)

LVP Variable Pitch Sheaves

Instructions for mounting and adjusting LVP variable pitch sheaves.

Figure 112: LVP Variable Pitch Sleeves

Diagram of LVP variable pitch sheaves, illustrating mounting and adjustment.

Mounting and Adjusting Motor Sheaves (continued)

MVP Variable Pitch Sheaves

Instructions for mounting and adjusting MVP variable pitch sheaves.

Figure 113: MVP Variable Pitch Sheaves (Type A-B)

Diagram of MVP variable pitch sheaves (Type A-B).

Figure 114: MVP Variable Pitch Sheaves (Type A–B)

Diagram of MVP variable pitch sheaves (Type A-B) showing adjustment.

Final Control Settings

Maintaining Control Parameter Records

Importance of recording and maintaining control parameter settings for reference.

MicroTech III Controller Operation

Using the Keypad/Display

Guide on using the keypad and display interface for unit control and monitoring.

Figure 115: Keypad Controls

Diagram illustrating the layout and function of the keypad controls.

MicroTech III Controller Operation (continued)

Passwords

Information on password levels and access for controller functions.

Navigation Mode

Explanation of how to navigate through the controller interface menus.

Edit Mode

Instructions for entering and using edit mode to change values.

Figure 116: Password Main Page

Diagram of the controller's password main page.

Figure 117: Password Entry Page

Diagram of the controller's password entry page.

Keypad/Display Menu Structure

Figure 118: Main Menu – Keypad/Display Menu Structure

Overview of the main menu structure for the MicroTech III controller.

Keypad/Display Menu Structure (continued)

Manual Control

Options available for manual control of various unit functions.

Service Menus

Access to service menus for advanced settings and diagnostics.

Trending

Information on how to access and view trending operational data.

Commission Unit

Procedures and parameters for commissioning the unit.

Keypad/Display Menu Structure (continued)

Figure 118 continued: View/Set Unit – Keypad/Display Menu Structure

Details of the View/Set Unit menu section for configuring parameters.

Keypad/Display Menu Structure (continued)

Cooling

Settings related to cooling operation, including setpoints and capacity.

Economizer

Settings related to economizer operation and damper control.

Min OA Damper

Settings for minimum outside air damper position and ventilation limits.

Heating

Settings related to heating operation, including setpoints and staging.

Dehumidification

Settings related to dehumidification operation, including RH and dewpoint.

Date/Time/Schedules

Settings for unit date, time, operating schedules, and holidays.

Keypad/Display Menu Structure (continued)

Figure 118 continued: Commission Unit – Keypad/Display Menu Structure

Details of the Commission Unit menu section for setting up unit parameters.

Keypad/Display Menu Structure (continued)

Cooling Set-Up

Parameters for configuring the cooling system operation.

Htg/Clg ChgOvr Set-Up

Setup parameters for heating/cooling changeover logic.

RF/EF Set-Up

Setup parameters for Return Fan (RF) and Exhaust Fan (EF) functions.

Min OA Set-Up

Setup parameters for minimum outside air settings.

Keypad/Display Menu Structure (continued)

Evap Cond Set-Up

Setup parameters for evaporator and condenser operation.

OA Fan Set-Up

Setup parameters for the outside air fan.

REFRIG CIRCUIT STATUS

Status information for refrigerant circuits, including pressure and temperature.

Exp Valve Set-Up

Setup parameters for the expansion valve.

Heating Set-Up

Setup parameters for heating system operation.

Alarm Configuration

Configuration settings for unit alarms and alert behavior.

Keypad/Display Menu Structure (continued)

Defrost Set-Up

Setup parameters for defrost functions to prevent coil freezing.

Dehum Set-Up

Setup parameters for dehumidification modes and settings.

Energy Rec Set-Up

Setup parameters for energy recovery system functions.

Head Pressure Set-Up

Setup parameters for controlling head pressure.

Keypad/Display Menu Structure (continued)

Service Menus

Access to various service menus for advanced configuration and diagnostics.

Timer Settings

Configuration settings for various unit timers, including service time.

Operating Hours

Tracking and display of unit operating hours for various components.

Save/Restore Settings

Functionality to save controller parameters and restore them.

Active Alarms

Information regarding currently active alarms and their status.

Keypad/Display Menu Structure (continued)

Alarm Lists

Lists of active and logged alarms, including alarm type and count.

Alarm Log

Detailed history of unit alarms, including timestamps and types.

Analog Input Status

Status information for analog inputs connected to the controller.

Universal I/O Status

Status information for universal input/output points on the controller.

Digital Input Status

Status information for digital inputs connected to the controller.

Digital Output Status

Status information for digital outputs controlled by the unit.

Alarm Configuration

Configuration settings for alarms, including limits and delays.

Keypad/Display Menu Structure (continued)

Network Input Status

Status information for network inputs connected to the controller.

Modbus Status

Status information for Modbus communication between devices.

D3 Status

Status information related to the D3 module.

Sensor Offsets

Adjustments for sensor offsets to ensure accurate readings.

Keypad/Display Menu Structure (continued)

Active Alarms

Detailed information on active alarms, including type and status.

Alarm Log

Detailed history of logged alarms, including timestamps and types.

Expansion Information

Information regarding expansion modules connected to the system.

Keypad/Display Menu Structure (continued)

Figure 118 continued: BMS Communications – Keypad/Display Menu Structure

Details on configuring and managing BMS communication settings.

Figure 118 continued: Trending – Keypad/Display Menu Structure

Details on configuring trending data logging and display.

Maintenance

Planned Maintenance

General preventive maintenance schedule and tasks for the system.

Servicing Control Panel Components

Safety precautions and procedures for servicing control panel components.

Unit Storage

Location

Precautions for storing the unit on the ground or at the final site location.

Cabinet Sections

Procedure for checking cabinet sections for moisture or debris accumulation.

Cooling Circuits

Procedures for cooling circuits during unit storage.

Control Compartment

Precautions for the control compartment, including heat source usage.

Restart

Procedure for performing a complete start-up after extended storage.

Bearing Lubrication

Motor Bearings

Lubrication instructions for supply and return fan motor bearings.

Fan Shaft Bearings

Lubrication instructions for fan shaft bearings.

Table 23: Recommended Lubricants and Amounts for Fan Motor Bearings

Table listing recommended lubricants and amounts for fan motor bearings.

Table 24: Relubrication Intervals*

Table of recommended relubrication intervals based on speed and cleanliness.

Bearing Lubrication (continued)

Table 25: Recommended Lubricants for Fan Shaft Ball Bearings

Table listing recommended lubricants for fan shaft ball bearings.

Table 26: Recommended Fan Relubrication Grease Charge

Table showing recommended grease amounts for fan relubrication.

Bearing Replacement

Instructions for the proper installation or removal of bearings.

BOA Concentric Inserts

Information regarding BOA concentric collars used with bearings.

Table 27: Shaft Size Tolerances

Table specifying the tolerances for shaft sizes.

Table 28: Recommended Torque Values for Concentric Locking Bearing/Shaft Size

Table of recommended torque values for concentric locking bearings.

Monitor Installed Bearing

How to monitor installed bearings for noise, vibration, and temperature.

Propeller Exhaust Fan

Vibration Levels

Information on acceptable vibration levels for fan operation.

Table 29: Vibration Levels

Table indicating acceptable vibration levels based on fan speed.

Vibration Causes

Common causes of fan vibration, including imbalance and drive issues.

Periodic Service and Maintenance

Schedule for periodic service and maintenance tasks.

Setscrews

Information on setscrews and their importance for locking components.

Return Fan Bearing Setscrews

Special procedure for retightening return fan bearing setscrews.

Propeller Exhaust Fan (continued)

Figure 119: Return Fan Assembly

Diagram of the return fan assembly, showing bearings and shaft support.

Supply Fan Wheel-to-Funnel Alignment

Instructions for aligning the supply fan wheel to the funnel.

Figure 120: 20ʺ DWDI Airfoil Wheel-to-Funnel

Diagram for 20" DWDI airfoil wheel-to-funnel alignment.

Figure 121: 24ʺ DWDI Backward Curved Wheel-to-Funnel

Diagram for 24" DWDI backward curved wheel-to-funnel alignment.

Propeller Exhaust Fan (continued)

Figure 122: 27ʺ to 40ʺ DWDI Airfoil Wheel-to-Funnel

Diagram for airfoil wheel-to-funnel alignment for 27" to 40" fans.

Table 31: 27ʺ to 40ʺ DWDI Airfoil Wheel-to-Funnel Relationship

Table relating wheel diameter to funnel relationship for airfoil fans.

Figure 123: 44ʺ and 49ʺ SWSI Airfoil Wheel-to-Funnel

Diagram for SWSI airfoil wheel-to-funnel alignment for 44" and 49" fans.

Table 32: 44ʺ and 49ʺ SWSI Airfoil Wheel-to-Funnel Relationship

Table relating wheel diameter to funnel relationship for SWSI airfoil fans.

Figure 124: 40ʺ SWSI Airfoil Wheel-to-Funnel Alignment

Diagram showing alignment for a 40" SWSI airfoil wheel.

Table 33: SWSI airfoil wheel-to-funnel relationship

Table relating wheel diameter to funnel relationship for SWSI fans.

Scroll Compressor Piping

Figure 125: Oil Equalization Line

Diagram illustrating the oil equalization line for compressors.

Figure 126: Oil Equalization Line with Rota-Lock Fittings

Diagram of the oil equalization line showing Rota-Lock fittings.

Figure 127: Suction Tubes

Diagram illustrating the suction tubes connected to the compressor.

Figure 128: Discharge Tubes

Diagram illustrating the discharge tubes connected to the compressor.

Scroll Compressor Piping (continued)

Preferred Replacement

Procedure for preferred replacement of a failed compressor.

Alternative Replacement

Procedure for alternative replacement of a failed compressor.

All-Aluminum Condenser Coils

Information on the design and benefits of all-aluminum condenser coils.

Connecting the Condenser Coil to Copper Tubing

Procedure for connecting the condenser coil to copper tubing.

Figure 129: Micro-Channel Coil Cross-Section

Diagram showing a cross-section of a micro-channel coil.

Figure 130: Aluminum/Copper Connections

Diagram illustrating the aluminum to copper connections.

Figure 131: Connection Close-Up

Close-up view of the coil connections.

Refrigerant Charge

Cleaning Option E Coated Coils

Cleaning procedures recommended for Option E coated coils.

Remove Surface Loaded Fibers

Procedure for removing surface loaded fibers from coils before rinsing.

Periodic Clean Water Rinse

Recommendation for a monthly clean water rinse to remove contaminants.

Routine Quarterly Cleaning of Option E Coated Coil Surfaces

Requirements for routine quarterly cleaning of Option E coated coils.

Recommended Coil Cleaner

Harsh Chemical and Acid Cleaners

Warning against using harsh chemicals or acid cleaners on coated coils.

High Velocity Water or Compressed Air

Precautions when using high velocity water or compressed air for cleaning.

Table 34: Option E Coated Coil Recommended Cleaning Agents

Table listing approved cleaning agents for Option E coated coils.

Servicing Refrigerant Sensors or Switches

Winterizing Water Coils

Procedures for winterizing water coils to prevent freeze-up damage.

Control Panel Components

Table 35: RoofPak Individual Motor Control and Protection

Table listing motor control and protection components used in RoofPak units.

Manual Motor Protector (MMP)

Description of the manual motor protector, its functions, and features.

Other MMP Features

Additional features of the manual motor protector, such as rotary operator.

Figure 132: Manual Motor Protector

Diagram of a manual motor protector, showing its components and operation.

Control Panel Components (continued)

Thermal Overload Relay

Description of thermal overload relays used for motor protection.

Circuit Breaker

Description of circuit breakers used for short circuit protection.

Figure 133: Overload Relay

Diagram of an overload relay, showing its components and operation.

Figure 134: Circuit Breaker

Diagram of a circuit breaker, showing its positions and reset mechanism.

Field Wiring Terminals

Figure 135: Terminal Connectors

Diagram of field wiring terminal connectors, highlighting spring clamp advantages.

Phase Voltage Monitor (PVM)

Description of the phase voltage monitor and its protective functions.

Table 36: LED Indication

Table explaining the LED indicators on the phase voltage monitor.

Figure 136: Phase Voltage Monitor

Diagram of the phase voltage monitor, showing LEDs and features.

Through-the-door Disconnect

Figure 137: Through-the-door Handle Disconnect

Diagram of the through-the-door handle disconnect mechanism.

Figure 138: Interlock Bypass

Diagram illustrating the interlock bypass feature of the disconnect.

Controlled Shut-down/Interlock Bypass

Pressure Sensors

Information on pressure sensors used by the MicroTech III controller.

Troubleshooting Pressure Transducers

Procedure for troubleshooting suspect pressure transducers.

Replacement Parts List

Component Designation

List of components and their corresponding Daikin part numbers.

Service and Warranty Procedure

Replacement Parts

Information on how to order replacement parts from Daikin or wholesalers.

Scroll Compressor

Information on scroll compressors used in Daikin rooftop units.

Replacing a Portion of a Tandem or Trio

Procedures for replacing parts of tandem or trio compressors.

Service and Warranty Procedure (continued)

In-Warranty Return Material Procedure

Procedure for returning warranty materials for credit.

Limited Product Warranty

North America

Warranty terms and conditions specific to North America.

Exceptions

List of exclusions and conditions that void the product warranty.

Assistance

Contact information for obtaining assistance or warranty information.

Sole Remedy

Statement defining the sole remedy available under the warranty.

Rooftop Equipment Warranty Registration Form

INITIAL CHECK

Checklist for initial unit checks performed before startup.

FAN DATA

Section for recording fan operational data, including voltage, amperage, and RPM.

START-UP COMPRESSOR OPERATION

Section for recording compressor startup data and checks.

Rooftop Equipment Warranty Registration Form (continued)

PERFORMANCE DATA

Section for recording unit performance data during testing.

ELECTRIC HEAT CHECK, TEST & START

Checklist for verifying electric heat components and operation.

Rooftop Equipment Warranty Registration Form (continued)

VI. GAS BURNER CHECK, TEST, & START

Checklist for gas burner function, test, and start procedures.

VIII. Design Flow Calibration

Calibration procedure for the Design Flow airflow measurement system.

X. MAINTAINING MICROTECH CONTROL PARAMETER RECORDS

Instructions for maintaining and recording MicroTech controller parameters.

Quality Assurance Survey Report

1. Is there any shipping damage visible?

Question regarding any visible shipping damage to the unit.

2. How would you rate the overall appearance of the product?

Question asking for a rating of the product's overall appearance.

3. Did all sections of the unit fit together properly?

Question regarding the proper fitment of all unit sections.

4. Did the cabinet have any air leakage?

Question about checking for air leakage within the unit cabinet.

5. Were there any refrigerant leaks?

Question asking to check for any refrigerant leaks.

6. Does the refrigerant piping have excessive vibration?

Question regarding excessive vibration in the refrigerant piping.

7. Did all of the electrical controls function at start-up?

Question verifying the function of all electrical controls at startup.

8. Did the labeling and schematics provide adequate information?

Question regarding the adequacy of unit labeling and schematics.

9. How would you rate the serviceability of the product?

Question asking for a rating of the product's serviceability.

10. How would you rate the overall quality of the product?

Question asking for a rating of the product's overall quality.

11. How does the quality of Daikin products rank in relation to competitive products?

Question ranking Daikin product quality against competitors.

Related product manuals