Daikin Maverick II MPS062E Installation And Maintenance Manual
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Daikin Maverick II MPS062E Installation And Maintenance Manual

Commercial packaged rooftop system
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Installation and Maintenance Manual
Maverick
II
®
Commercial Packaged Rooftop System
Models MPS062E–MPS075E
62 through 75 Tons
R-410A Refrigerant
MicroTech
III Unit Controller
®
IM 991-2
Group: Applied Air Systems
Part Number: IM 991
Date: July 2019

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Summary of Contents for Daikin Maverick II MPS062E

  • Page 1 Installation and Maintenance Manual IM 991-2 Group: Applied Air Systems Part Number: IM 991 Date: July 2019 Maverick ® Commercial Packaged Rooftop System Models MPS062E–MPS075E 62 through 75 Tons R-410A Refrigerant MicroTech III Unit Controller ®...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit Options .

  • Page 3: Introduction

    Introduction Introduction This manual provides general informationabout the Daikin Compressor Nameplate Compressor Nameplate Maverick II rooftop unit, model MPS 062E - 075E. In addition to an overall description of the unit, Size 62 units utilize the tandem compressor design. Each...

  • Page 4: Unit Description

    Introduction Unit Description Typical Component Locations Figure 2 shows a typical gas heat or electric heat unit with the locations of the major components. Figure 3 on page 5 shows a typical cooling only unit with the locations of the major components.
  • Page 5 Introduction Figure 3: Typical Component Locations for Cooling Only Unit 1.5 NPT drain www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 6 Introduction Refrigeration Piping This section presents the unit refrigeration piping diagrams for the various available configurations. Figure 4: Circuit Schematic A Compressor (2 or 3 per circuit) B Discharge line C Condenser coil D Evaporator coil E Manual shutoff valve F Filter-drier H Sightglass I Liquid line...
  • Page 7 Introduction Figure 6: Air Handler Piping (Flat DX) Figure 7: Air Handler Piping (Staggered DX) Legend Legend 1 - Thermostatic expansion valve 1 - Thermostatic expansion valve 2 - Distributor 2 - Distributor 3 - Hot gas bypass line 3 - Hot gas bypass line Liq u id lin e so le n o id v al v e www.DaikinApplied.com...

  • Page 8: Control Locations

    Introduction Control Locations Figure 8 (gas and electric units) and Figure 9 on page 9 components mounted in control panels. Additional information (cooling only and hot water heat units) show the locations of is included in Table 2 on page 14 and the wiring diagram the various control components mounted throughout the units.
  • Page 9 Introduction Figure 9: Control Locations—Cooling Only and Hot Water HeatUnits Condenser section Supply fan discharge plenum section Heat section section Filter section Economizer return air HP1-2, LP1-2 HTR1-2, U1/U2 HP3-4 (optional) HTR3-4 (optional) (optional) ACT3 ACT6 (optional) (optional) (optional) www.DaikinApplied.com IM 991-2 •...

  • Page 10: Control Panel

    Introduction Control Panel The unit control panels and their locations are shown in the from these figures depending on the particular unit options. following figures. These figures show a typical unit. See “Wiring Diagrams” on page 40 for the legend and configuration. Specific unit configurations may differ slightly component description.
  • Page 11 Introduction Figure 11: Typical Main Control Panel, 460 Volt www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 12 Introduction Figure 12: Typical Gas Heat Panel Figure 13: Typical Prop Exhaust Panel, 2 Fans, 460 Volt TD10 TB11 FSG Time Figure 14: Condensing Unit Control Panel IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 13 Introduction Figure 15: Electric Heat Panel Figure 16: Harness Plug Connector Detail RATS DATS OATS EPTS OPEN1 FB33 FB32 FB31 AFD10 AFD20 FB43 FB42 FB41 SV12 SV56 TB11 ACT3 OPEN2 HL22 OPEN3 GSHT1 GSHT2 GLG3 DFRH DFLH OPEN4 COMP1 COMP2 COMP3 COMP4 COMP5...

  • Page 14: Fantrol

    Introduction Fantrol The Fantrol, provided on all units, is a method of head pressure control that automatically cycles the condenser fans in response to ambient air temperature. This feature maintains head pressure and allows the unit to run at low ambient air temperatures.

  • Page 15: Mechanical Installation

    Allow service clearance approximately as indicated in Figure 17. Also, Daikin recommends providing a roof walkway to the rooftop unit as well as along at least the two sides of the unit that provide access to most controls and serviceable components.
  • Page 16 Mechanical Installation Ventilation Clearance Overhead Clearance Below are minimum ventilation clearance recommendations. 1. Unit(s) surrounded by screens or solid walls must have The system designer must consider each application and no overhead obstructions over any part of the unit. provide adequate ventilation. If this is not done, the unit will not 2.

  • Page 17: Roof Curb Assembly And Installation

    Mechanical Installation Roof Curb Assembly and Installation Assembly Instructions (Figure 19 on page WARNING Mold can cause personal injury. Some materials such as gypsum wallboard 1. Set curbing parts A through K per dimensions shown can promote mold growth when damp. Such materials must be protected over roof opening or on a level surface.
  • Page 18 Mechanical Installation Figure 19: Roof Curb Assembly 61.0 [1549 mm] - MPS 062E only 74.0 [1880 mm] - MPS 070E - 075E only Using remaining side supports in this area, align lengths on Condenser opposite sides of assembly Section Support and install a cross support at each side.
  • Page 19 Mechanical Installation Figure 20: Typical Power Wire Entrance, Curb View (See Project Certified Drawings) 61.0 [1549 mm] - MPS 062E only 74.0 [1880 mm] - MPS 070E - 075E only [173 mm] [223 mm] 28.0 38.0 [711 mm] [965 mm] [25 mm] [25 mm] 81.0...

  • Page 20: Post And Rail Mounting

    Mechanical Installation Post and Rail Mounting Rigging and Handling CAUTION WARNING Use all lifting points. Improper lifting can cause severe personal injury and Equipment damage can result if the unit is not level . property damage. The unit must be level side-to-side and over the entire length. Lifting brackets with 2"...

  • Page 21: Lifting Points

    Mechanical Installation Lifting Points Cabinet Weather Protection CAUTION CAUTION Lifting points may not be symmetrical to the center of gravity of the unit. Transportation, rigging, or maintenance can damage the unit’s weather seal. Ballast or unequal cable lengths may be required. Periodically inspect the unit for leakage.

  • Page 22: Unit Piping

    Mechanical Installation Unit Piping Condensate Drain Connection On units with staggered cooling coils, the upper drain pan WARNING drains into the lower coil drain pan through a copper tube Cleaning should be performed by qualified personnel. near the center of the drain pan. Check that this tube is open Drain pans must be cleaned periodically.
  • Page 23 Coil freeze possible. Can damage equipment. Follow instructions for mixing antifreeze solution used. Some products have higher freezing points in their natural state than when mixed with water. The freezing of coils is not the responsibility of Daikin Applied. Refer to “Winterizing Water Coils” on page 101.

  • Page 24: Damper Assemblies

    Mechanical Installation Damper Assemblies The optional damper assemblies described in this section normally are ordered with factory-installed actuators and linkages. The following sections describe operation and linkage adjustment of the factory-installed option. Economizer Dampers Outside air intake is provided on both sides of the unit, and the Figure 27: Damper Adjustment return air path is at the center of the damper set.
  • Page 25 Mechanical Installation Intake Hood Damper (0% to 30% Outside Air) These dampers are intended to remain at a fixed position Figure 28: Damper Linkage Bar Typical for All Sizes during unit operation, providing fresh air quantities from 0% to 30% of the total system airflow, depending on the damper setting.

  • Page 26: Installing Ductwork

    Where return air ducts are not required, connect a sound absorbing T or L section to the unit return to reduce noise On bottom-supply/bottom-return units, if a Daikin roof curb transmission to the occupied space. is not used, the installing contractor should make an airtight...
  • Page 27 2. Use different colored tubing for the duct pressure (HI) tubing and reference pressure (LO) taps, or tag the tubes. Daikin recommends ¼" plastic tubing. 3. Locate the duct pressure (HI) tap near the end of a long duct to ensure that all terminal box take-offs along the run have adequate static pressure.
  • Page 28 Mechanical Installation Installing Building Static Pressure Sensor Taps Lab Pressurization Applications CAUTION Fragile sensor fittings. 1. Install a “T” fitting with a leak-tight removable cap in each tube near the sensor fitting. This facilitates connecting a If you must remove tubing from a pressure sensor fitting, use care. Do not use manometer or pressure gauge if testing is required.

  • Page 29: Electrical Installation

    Electrical Installation Electrical Installation Field Power Wiring Figure 32: Power Wiring Connections DANGER Hazardous voltage. Can cause severe injury or death. Disconnect electric power before servicing equipment. CAUTION Electric heat Wires are located in the base rail. Move wires before drilling hole(s) through control panel the base rail.
  • Page 30 Electrical Installation Figure 34: Typical Power Wire Entrance, Unit View (Actual Opening Shown on Submittal Documents) IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...

  • Page 31: All Units

    Electrical Installation All Units Table 4: Recommended 3-Phase Power Wiring CAUTION Provide proper line voltage and phase balance. Improper line voltage or To Ensure Disconnects and Power Blocks Mate with Power Wiring excessive phase imbalance constitutes product abuse. It can cause severe Insulation Conduit For MCA...

  • Page 32: Field Control Wiring

    Electrical Installation Field Control Wiring Figure 35: Field Control Wiring Connections DANGER Electrical shock hazard. Can cause severe injury or death. Main control panel Connect only low voltage NEC Class II circuits to terminal blocks TB2 and TB5. Reinstall and secure all protective dead front panels when the wiring installation is complete.

  • Page 33: Preparing Unit For Operation

    Preparing Unit for Operation Preparing Unit for Operation Spring Isolated Fans Releasing Spring Mounts Adjusting Spring Mounts WARNING WARNING Moving machinery hazard. Can cause severe injury or death. Moving machinery hazard. Can cause severe injury or death. Moving machinery hazard. Can cause severe injury or death. Before servicing Start the fans for the first time according to the “Check, Test, and Start equipment, disconnect power and lock off.

  • Page 34: Relief Damper Tie-Down

    Preparing Unit for Operation Relief Damper Tie-Down Economizer sections with a 30" or 40" return fan have a Figure 40: Cross Section of Seismic Restraint relief damper that is tied down for shipping. Remove the two Fan base channel brackets and two screws before operation to allow movement of dampers.

  • Page 35: Sequences Of Operation

    33%) while the fan is operating. • Gas furnace alarm relay R24 (line 225, not shown) Units supplied with Daikin MD2, MD3, and MD6 drives will • Smoke detector SD2 (line 237) have a user editable maximum supply fan hertz setpoint (default 60 Hz) located in the SAF Set Up menu.

  • Page 36: Duct Static Pressure Control

    Sequences of Operation Duct Static Pressure Control Cooling: Multistage The supply air fan speed is controlled by a VFD. The control Entering the Cooling Operating State parameter for the fan speed is the duct static pressure setpoint. The unit enters the Cooling operating state from the Fan Only If the duct static pressure is below the duct static pressure operating state when the control temperature rises above the setpoint by more than ½...
  • Page 37 Sequences of Operation Stage Up After Stage Up: Average Discharge Control Method Illustration Figure 42 on page 38 is an illustration of the “Degree Time” If the time since the last stage change exceeds the cooling compressor staging control method and is meant to show stage timer, the discharge air temperature is greater than the a variety of staging possibilities not normal unit operation.
  • Page 38 Sequences of Operation Point 7 The discharge air temperature is again above the Point 8 The Cooling Interstage Timer has expired. Since the Effective Discharge Cooling Set Point by more than half the discharge air temperature is still above the Effective Discharge Discharge Cooling Dead Band.

  • Page 39: Economizer Operation

    Sequences of Operation Staging - Zone Control Project Ahead In the Cooling state, compressor stages are turned ON and This section describes the Projected Control Temperature OFF to maintain the control temperature close to the Occupied used to turn on and off stages of heating and cooling for Zone or Unoccupied Cooling Setpoint.

  • Page 40: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams Legend Description Standard Location Description Standard Location HTR1–6 Crankcase heaters On compressors ACT3, 4 Actuator motor, economizer Economizer section Ignition transformer Gas heat box Actuator motor, exhaust ACT10, 11 Return section dampers Leaving air temperature sensor Energy recovery section Actuator motor, enthalpy wheel Low-pressure controls,...
  • Page 41 Wiring Diagrams General Notes Description Standard Location Field wiring Return air enthalpy sensor Return section Return air temperature sensor Return section Factory wiring REC1 Receptacle, main box Main control box REC2 Receptacle, condenser box Condenser control box Shielded wire/cable REC3 Receptacle, field power, 115V Discharge bulkhead Switch, system ON/OFF...
  • Page 42 Wiring Diagrams Figure 43: VAV Fan Power, Unit Powered Receptacle IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 43 Wiring Diagrams Figure 43 continued: VAV Fan Power, Unit Powered Receptacle www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 44 Wiring Diagrams Figure 44: Constant Volume (SAF) Fan Power IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 45 Wiring Diagrams Figure 45: MPS 070 Condensing Unit Power www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 46 Wiring Diagrams Figure 46: VFD Control IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 47 Wiring Diagrams Figure 47: VAV Control Inputs www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 48 Wiring Diagrams Figure 47 continued: VAV Control Inputs IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 49 Wiring Diagrams Figure 48: Gas Burner Control www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 50 Wiring Diagrams Figure 48 continued: Gas Burner Control IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 51 Wiring Diagrams Figure 49: Electric Heat Control www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 52 Wiring Diagrams Figure 49 continued: Electric Heat Control IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 53 Wiring Diagrams Figure 50: Condensing Unit Control with Scroll Compressors www.DaikinApplied.com IM 991-2 • MAVERICK II ROOFTOP...
  • Page 54 Wiring Diagrams Figure 50 continued: Condensing Unit Control with Scroll Compressors IM 991-2 • MAVERICK II ROOFTOP www.DaikinApplied.com...
  • Page 55 Wiring Diagrams Figure 51: CV Fan Control /3.11 /3.11 /1.68 115VAC_GF/1 T3_24V T3_COM T1_N jprs 24V SRC 401A SUPPLY FAN SOURCE 9-16 WIRED INTERNAL jprs TO MOTHERBOARD 24V SRC 404A 9-16 RETURN FAN MMP10 MMP20 426A 426B 426C 11(31) 12(32) 11(31) 12(32) 431A...

  • Page 56: Unit Options

    Unit Options Unit Options Control Actuators Convenience Receptacle The actuators are controlled by an analog signal from the unit A Ground Fault Circuit Interrupter (GFCI) convenience controller. Damper actuators utilize a 0-10 V (dc) analog signal receptacle is provided in the main control box on all units. One while modulating heating/cooling valve actuators utilize a 2-10 of the following is required: V (dc) signal.

  • Page 57: Enthalpy Control

    Unit Options Enthalpy Control Outside Air Enthalpy Control (OAE) Differential Enthalpy Control (OAE/RAE) Units with MicroTech III control and an economizer come An optional electric differential enthalpy control arrangement standard with an electro-mechanical enthalpy control device (OAE/RAE) is available on units with MicroTech III control. (OAE) that senses both the humidity and temperature of the In this configuration a solid-state humidity and temperature outside air entering the unit.

  • Page 58: Smoke And Fire Protection

    When these terminals are used, the factory-installed jumper Daikin optionally offers factory installed outdoor air, return must be removed. air, and exhaust air dampers as well as smoke detectors in thereturn air openings, complete with wiring and control.

  • Page 59: External Time Clock

    Unit Options External Time Clock External Time Clock or Tenant Override You can use an external time clock as an alternative to (or in addition to) the MicroTech III controller’s internal scheduling There are several methods of switching the rooftop unit between function.

  • Page 60: Field Output Signals

    Unit Options Field Output Signals VAV BoxOutput The following outputs may be available for field connections to a suitable device. The VAV Box Output (MCB-DO10) supplies 24 V (ac) to VAV Box Signal/Fan Operation Signal terminal 116 on the field terminal block (TB2) when the output is ON.

  • Page 61: Variable Frequency Drive Operation

    Unit Options Variable Frequency Drive Operation Entering Fan Temperature Sensor The entering fan temperature (EFT) sensor and an associated “Lo Refer to the vendor instructions supplied with the unit. Airflow Problem” alarm are provided on VAV units with MicroTech III control and gas or electric heat. The EFT sensor is located in the supply fan section of the unit at the supply air funnel.

  • Page 62: Optional Low Ambient Compressor Operation

    Unit Options Optional Low Ambient Compressor Operation Daikin’s head pressure control operates in conjunction with Figure 58: R-410A Speedtrol Speedtrol by modulating the motor speed of the last condenser AFD11 fan of each refrigeration circuit in response to condenser pressure. By varying the speed of the last condenser fan of...

  • Page 63: Propeller Exhaust Fan Option

    Unit Options Propeller Exhaust Fan Option Economizer units may include propeller exhaust or centrifugal Figure 60: Two Fans with Back Return Shown return fan options. This section covers maintenance and operating instructions for the propeller exhaust option. Centrifugal return fan construction, maintenance and operation is similar to that for supply fans and covered in other sections of this manual.
  • Page 64 Unit Options Damper Counterbalance Adjustment The following instructions should be followed when attempting Adjustment #1: to maximize the counterbalance effect on the EM or GM Moving the weight stack along the length of the mounting model dampers. Be aware that when the balance setting bracket slot (Figure 62) will effect the full open balance of...
  • Page 65 Unit Options Belts Figure 63: Drive Pulley Alignment WARNING Rotating parts can cause severe personal injury or death. Replace all belt/fan guards that are removed temporarily for service. It is very important that the drive pulleys remain in proper alignment after adjustments are made. Misalignment of pulleys results in premature belt wear, noise, vibration, and power loss.
  • Page 66 Unit Options Figure 65: PropellerExhaust Fan Replacement Parts List 1 . F a n pa n e l 2 . P r o p e l l e r 3 . D r i v e fr a m e ch a n n e l ( 2 ) 4 .
  • Page 67 Unit Options Bearings Removing Dust/Dirt Bearings are the most critical moving part of the fan; inspect Thoroughly clean the exterior surface of the motor, fan panel, them at periodic intervals. Check locking collars, set screws, and entire propeller periodically. Dirt can clog cooling openings and fasteners that attach bearings to the bearing plate for on motor housings, contaminate bearing lubricant, and tightness.

  • Page 68: Check, Test, And Start Procedures

    “Rooftop Equipment Warranty Registration” on 13. If unit is curb mounted, verify that the curb is properly page 112 and return it to Daikin. flashed to prevent water leakage. A representative of the owner or the operator of the equipment 14.

  • Page 69: Economizer Start-Up

    Check, Test, and Start Procedures Economizer Start-up Power Up 1. Close the unit disconnect switch. With the control system CAUTION switch S1 in the OFF position, power should be available Adjust dampers properly. Improper adjustment can damage the dampers. only to the control circuit transformer (T1) and the When an economizer is ordered without an actuator, the linkage requires a compressor crankcase heaters.

  • Page 70: Compressor Startup

    Check, Test, and Start Procedures Compressor Startup All three-phase compressors are wired the same internally. CAUTION Therefore, once the correct phasing is determined for a Low ambient temperature hazard. Can cause compressor damage. Do not specific system or installation, connecting properly phased attempt to start up and check out the refrigeration system when the outdoor power leads to the same terminals should maintain proper air temperature is below 50°F unless the unit is specially equipped for low...
  • Page 71 Check, Test, and Start Procedures Expansion Valve Superheat Adjustment 7. The compressor should operate continuously while there is a call for cooling. If the compressor cycles on its low It is very important that the expansion valve superheat setting pressure switch, do the following: be adjusted to be between 8°F (-13°C) and 14°F (-10°C).

  • Page 72: Heating System Startup

    Check, Test, and Start Procedures Heating System Startup Air Balancing General WARNING Moving machinery hazard. Can cause severe personalinjury or death. 1. At the keypad, set the heating setpoints high enough so Do not use a mechanically driven tachometer to measure the speed of that the controller calls for heating.Adjust the value in return fans on this fan arrangement.

  • Page 73: Drive Belt Alignments

    Check, Test, and Start Procedures Drive Belt Alignments Sheave Alignment Drive Belt Adjustment Mounting: General Rules of Tensioning 1. Verify both driving and driven sheaves are in alignment 1. The ideal tension is the lowest tension at which the belt and the shafts are parallel.
  • Page 74 Check, Test, and Start Procedures Mounting and Adjusting Motor Sheaves VM and VP Variable Pitch Sheaves Mounting: Adjusting: 1. Mount all sheaves on the motor shaft with setscrew A 1. Slack off all belt tension by moving the motor toward the toward the motor (see Figure 69).
  • Page 75 Check, Test, and Start Procedures LVP Variable Pitch Sheaves Mounting: Adjusting: 1. For single-groove sheaves, slide the sheave onto the 1. Slack off all belt tension by moving the motor toward the motor shaft so that the side of the sheave with setscrew driven shaft until the belts are free from the grooves.
  • Page 76 Check, Test, and Start Procedures MVP Variable Pitch Sheaves CAUTION Do not loosen any screws other than the two locking screws (A) in the outer locking ring. Before operating the drive, securely tighten these screws. Adjusting: 1. Slack off belt tension by moving the motor toward the 3.

  • Page 77: Final Control Settings

    (Honeywell H705/C7400) enthalpy control (OAE/ Maintaining Control Parameter Records RAE) past D. Daikin recommends that the MicroTech III controller’s setpoints 4. Set the heating and cooling parameters as required for and parameters be recorded and saved for future reference. If normal unit operation.

  • Page 78: Microtech Iii Controller Operation

    MicroTech III Controller Operation MicroTech III Controller Operation Using the Keypad/Display The keypad/display consists of a 5-line by 22 character display, The keypad/display Information is organized into five main three keys and a “push and roll” navigation wheel. There is an menus or menus groups;...

  • Page 79: Version Information

    10 minutes. It is changeable from 3 to 30 return to the navigation mode. minutes via the Timer Settings menu in the Extended Menus. Figure 74: Password Main Page Daikin AHU Enter Password Continue W/O Password Version Information...

  • Page 80: Keypad/Display Menu Structure

    MicroTech III Controller Operation Keypad/Display Menu Structure The following is a description of the MicroTech III menu structure. These menus and items can all be displayed with the keypad/ display. Menu items displayed will change based on the selected unit configuration. Refer to OM 920 for more details.
  • Page 81 MicroTech III Controller Operation Commission Unit Manual Control Service Menus Trending Unit Maintenance ► ► Unit Set-Up Manual Control= Normal CFan Outpt 1= Off Timer Settings Trending Ena= No Operating Hours ► ► Timer Settings Supply Fan= Off CFan Outpt 2= Off Operating Hours Apply Chgs= No ►...
  • Page 82 MicroTech III Controller Operation View/Set Unit – Keypad/Display Menu Structure Figure 76 continued: View/Set Unit ► Unit Status/Settings ► Occupancy ► Temperatures ► Flow Status ► SAF Spd Control ► RF/EF Control ► Cooling ► Economizer ► Min OA Damper ►...
  • Page 83 MicroTech III Controller Operation Cooling Min OA Damper Heating Dehumidification Date/Time/Schedules Economizer Occ Clg Spt= 72.0°F Min OA Pos= XXX% Occ Htg Spt= 68.0°F Dehum Status= ________ Time= hh:mm:ss OAD/Econo Pos= XXX% Unocc Clg Spt= 85.0°F DAT Clg Spt= 55.0°F Vent Limit= 20% Unocc Htg Spt= 55.0°F Rel Humidity= XXX%...
  • Page 84 MicroTech III Controller Operation Commission Unit – Keypad/Display Menu Structure Figure 76 continued: Commission Unit ► Unit Set-Up ► Timer Settings ► SAF Set-Up ► RF/EF Set-Up ► Htg/Clg ChgOvr Set-Up ► Cooling Set-Up ► INV Cmp Set-Up ► Var Cmp Set-Up ►...
  • Page 85 MicroTech III Controller Operation RF/EF Set-Up Htg/Clg ChgOvr Set-Up Cooling Set-Up RF/EF Ctrl= Tracking MinExStrtTm= 120s Ctlr Temp Src= RAT Clg Stage Time= 5min Clg DB= 2.0°F Rem RAF Cap= 5% MinExStopTm= 120s AplyTstatchg= No Rem ExhF Cap= 5% MinExOAPos= 5% Use Tstat Spt= No Clg Period= 20s Clg Gain= 1...
  • Page 86 MicroTech III Controller Operation Commission Unit – Keypad/Display Menu Structure Figure 76 continued: Commission Unit ► Unit Set-Up ► Timer Settings ► SAF Set-Up ► RF/EF Set-Up ► Heating Set-Up OA Fan Set-Up Exp Valve Set-Up Htg/Clg ChgOvr Set-Up ► Htg Stage Time= 5min OA FAN STATUS EXP VALVE STATUS...
  • Page 87 MicroTech III Controller Operation Dehum Set-Up Defrost Set-Up Energy Rec Set-Up Head Pressure Set-Up Dehum Method= None Defrost State= _________ Energy Rcvy= Yes Wtr Reg Vlv= XXX% RH DB= 2% Manual DF= No ER Wheel= ___________ Head P Circ 1= XXXPSI Dewpoint DB= 2°F MinCmpOpTm= 10min Wheel Speed= XXX%...
  • Page 88 MicroTech III Controller Operation Service Menu – Keypad/Display Menu Structure Figure 76 continued: Service Menus ► Timer Settings ► Operating Hours ► Save/Restore Settings ► Active Alarms ► Alarm Log ► Alarm Configuration ► Analog Input Status ► Universal I/O Status ►...
  • Page 89 MicroTech III Controller Operation Alarm Log Alarm Configuration ► Log Count: xx Clr Log= No ALARM LIMITS ► 3, 4 See connection on page 91 +/-Alarm 1: Alarm Type Hi Disch Temp= 170°F ► +/-Alarm 2: Alarm Type Lo Disch Temp= 40°F ●...
  • Page 90 MicroTech III Controller Operation Service Menu – Keypad/Display Menu Structure Figure 76 continued: Service Menus ► Timer Settings ► Operating Hours ► Save/Restore Settings ► Active Alarms ► Alarm Log ► Alarm Configuration ► Analog Input Status ► Universal I/O Status ►...
  • Page 91 MicroTech III Controller Operation Alarm Lists Active Alarms Alarm Log Alarm Details ► ► Active Alarms Alm Count: xx Clr Alms= No Log Count: xx Clr Log= No +/-Alarm 1: Alarm Type ► ► ► +Alarm 1: Alarm Type +/-Alarm 1: Alarm Type Alarm Log MM/DD/YYYY HH:MM:SS ►...
  • Page 92 MicroTech III Controller Operation BMS Communications – Keypad/Display Menu Structure Figure 76 continued: BMS Communications ► LON Set-Up ► BACnet MSTP Set-Up ► BACnet IP Set-Up ► D-Net Set-Up ► Network Unit Set-Up IM 918 IM 917 IM 916 LON Set-Up BACnet MSTP Set-Up BACnet IP Set-Up D-Net Set-Up...

  • Page 93: Maintenance

    Maintenance Maintenance Planned Maintenance DANGER Hazardous voltage. May cause severe injury or death. Preventive maintenance is the best way to avoid unnecessary Disconnect electric power before servicing equipment. More than one expense and inconvenience. Have this system inspected at disconnect may be required to de-energize the unit. regular intervals by a qualified service technician.

  • Page 94: Unit Storage

    Unit Storage Location Gas Furnace The Daikin Rooftop Packaged System is an outdoor unit. If the unit is equipped with a gas furnace, close the gas shutoff However, the schedule may dictate storage either on the valve and open furnace control switch S3. For information on ground or in its final position at the site.
  • Page 95 Maintenance Evacuation Use a vacuum pump with a pumping capacity of approximately 3 cu.ft./min. and the ability to reduce the vacuum in the unit to at least 1 mm (1000 microns). 1. Connect a mercury manometer or an electronic or other type of micron gauge to the unit at a point remote from the vacuum pump.

  • Page 96: Charging The System

    Maintenance Charging the System Refrigerant Charge CAUTION Adding refrigerant to the suction must always be done by trained service Each unit is designed for use with R-410A.The total charge per personnel that are experienced with the risks associated with liquid-related circuit is the sum of the following four values: damage to the compressor.

  • Page 97: Bearings

    Texaco, Polystar or Polyrex EM (Exxon Mobile) or Grease Rykon Premium #2 or Penzoil Pen 2 Lube schedule, see Table 11. For any applications that are not in the ranges of NEMA 56 to the table, contact Daikin Size Amount to Add 0.08 0.15 0.19 0.30 0.47...
  • Page 98 Maintenance Bearing Replacement Vibration Levels The following instructions must be read in entirety before Each unit as shipped is trim balanced to operate smoothly.To attempting installation or removal. The procedures indicated provide satisfactory operation after shipping and installation, should be carefully followed. Failure to do so can result in use accepted industry guidelines for field balancing fans.

  • Page 99: Supply Fan Wheel-To-Funnel Alignment

    Maintenance Supply Fan Wheel-to-Funnel Alignment If the unit is equipped with an airfoil or backward curved Figure 77: DWDI Airfoil Wheel-to-Funnel Alignment supply fan, the fan wheel-to-funnel alignment must be as Wheels shown in Figure Figure 78 Figure 79 to obtain proper air delivery and operating clearance.

  • Page 100: Scroll Compressor Piping

    Maintenance Scroll Compressor Piping When replacing an individual scroll compressor on tandem Figure 80: Oil Equalization Line or trio assemblies (see “Scroll Compressor” “Replacing a Portion of a Tandem or Trio” on page 109), three refrigerant lines must be disconnected and re-assembled: 1.

  • Page 101: All-Aluminum Condenser Coils

    Maintenance All-Aluminum Condenser Coils Figure 85: Aluminum/Copper Connections CAUTION Potential equipment damage. If a standard copper brazing process is performed at this joint, the process will damage the aluminum connection. If a condenser coil ever needs to be replaced, the copper aluminum joint repair should be done with a ProBraze repair kit ™...

  • Page 102: Refrigerant Charge

    Switches Potential severe loss of charge may occur if the high refrigerant pressure switch is replaced before reclaiming the refrigerant. Replace switch after The Daikin Rooftop unit includes the following refrigerant reclaiming refrigerant. sensors or switches. The unit nameplate references proper charge for each 1.

  • Page 103: Control Panel Components

    Maintenance Control Panel Components The following motor control protection is provided. Other MMP Features: • Three-position rotary operator: OFF (O)-TRIP-ON (I) Table 19: RoofPak Individual Motor Control and Protection (Figure 87). • Lockout—tagoutable rotary operator: turn the rotary Motor Type Short Circuit Overload On-Off...

  • Page 104: Circuit Breaker

    Maintenance Thermal Overload Relay Circuit Breaker Designed to provide current-dependent protection for loads Circuit breakers are installed upstream of all VFDs to provide with normal starting against impermissibility high temperature short circuit protection. These breakers are not adjustable. rises due to overload, phase asymmetry or phase failure. To reset a tripped circuit breaker: Clear the trip by rotating the Increase in motor current beyond set point as a result to lever down to the OFF position (see...

  • Page 105: Other Features

    Maintenance Field Wiring Terminals Phase Voltage Monitor (PVM) All field wiring terminals are spring clamp type, which offer The phase voltage monitor (Figure 91)is designed to protect several advantages over traditional screw-type terminals: three-phase loads from damaging power conditions. A microprocessor-based voltage and phase sensing circuit •...
  • Page 106 Maintenance Through-the-door Disconnect Figure 92: Through-the-door Handle Disconnect DANGER Hazardous voltage. May cause severe injury or death. Disconnect electric power before servicing equipment. More than one disconnect may be required to de-energize the unit. CAUTION Molded case switches do not provide over-current protection. This device may automatically open the circuit at levels above the ampere rating of the switch.
  • Page 107 Maintenance Controlled Shut-down/Interlock Bypass Troubleshooting Pressure Transducers Use the following procedure to troubleshoot a suspect sensor: To access the control panel while power is active, for If the duct static pressure always reads 0ʺ WC on the unit troubleshooting or performing a controlled shut-down, the keypad/display and the VFD speed is continuously ramping to through-the-door disconnect’s interlock feature can be 100%, check the following:...

  • Page 108: Replacement Parts List

    Replacement Parts List Replacement Parts List Table 21: MicroTech III Unit Controller Parts List Daikin Part # Aftermarket Part Description 193407301 MT3006 Lg Controller w/HMI 27 IOS 193407401 MT3026 Extension IO Module 26 IOS 193407501 MT3025 Extension IO Module 15 IOS...

  • Page 109: Service And Warranty Procedure

    1. Contact the Daikin Parts Department for compressor units can be obtained from the following two sources: availability. 1. Daikin Service Parts maintains a stock of replacement 2. Send a completed parts order form to the Daikin Parts compressors. Department. 2. Copeland Refrigeration has stocking wholesalers 3.

  • Page 110: In-Warranty Return Material Procedure

    A Return Goods tag will be sent to be included with the returned material. Enter the information as called for on the tag 3. The Daikin Parts Department will process the order and in order to expedite handling at our factories and issuance of the compressors will be shipped from our Dayton, OH credits.

  • Page 111: Limited Product Warranty (North America)

    McQuay Air Conditioning, AAF Air Conditioning, AAF HermanNelson and Sole Remedy Daikin Service, and used in the United States or Canada, proves defective in material or workmanship within twelve (12) THIS WARRANTY CONSTITUTES THE OWNER’S months from initial startup or eighteen (18) months from the SOLE REMEDY.

  • Page 112: Rooftop Equipment Warranty Registration

    Rooftop Equipment Warranty Registration Form To comply with the terms of Daikin Applied Warranty, complete and return this form within 10 days to the Warranty Department of Daikin Applied. Check, test, and start procedure for Rooftop roof mounted air conditioners with or without heat recovery and roof mounted air handlers.
  • Page 113 Rooftop Equipment Warranty Registration Rooftop Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. I. INITIAL CHECK A. Is any shipping damage visible? ........Yes B.
  • Page 114 Rooftop Equipment Warranty Registration Rooftop Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. III. START-UP COMPRESSOR OPERATION A. Do compressors have holding charges? Circuit #1........... . Yes Circuit #2.
  • Page 115 Rooftop Equipment Warranty Registration Rooftop Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. Q. At what suction pressure does the hot gas bypass valve open?..Circuit 1 __________ psig Circuit 2 __________ psig R.
  • Page 116 Rooftop Equipment Warranty Registration Rooftop Equipment Warranty Registration Form (continued) Select Yes or No. If not applicable to the type of unit, select N/A. N. Flame failure shutoff (seconds): ......... _________________ O.
  • Page 117 AAH.Wty_WAR_forms@daikinapplied.com Please fill out the Daikin Applied “Quality Assurance Survey Report” and list any additional comments that could affect the operation of this unit; e.g., shipping damage, failed components, adverse installation applications, etc. If additional comment space is needed, write the comment(s) on a separate sheet, attach it to the Survey Report and return it to the Warranty Department of Daikin Applied with the completed Equipment Warranty Registration form.

  • Page 118: Quality Assurance Survey Report

    Poor 10. How would you rate the overall quality of the product? Excellent Good Fair Poor 11. How does the quality of Daikin Applied products rank in relation to competitive products? Excellent Good Fair Poor Comments _______________________________________________________________________________________ Please list any additional comments which could affect the operation of this unit; i.e., shipping damage, failed components, adverse installation applications, etc. If additional comment space is needed, write the comment(s) on a separate sheet, attach the sheet to this completed Quality Assurance Survey Report, and return it to the Warranty Department with the completed preceding “Equipment Warranty Registration Form”.
  • Page 120 Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

This manual is also suitable for:

Maverick ii seriesMaverick ii mps075eMaverick ii mps070e

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