Daikin MPS015 F Installation And Maintenance Manual
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Daikin MPS015 F Installation And Maintenance Manual

Maverick ii series heating and cooling r-410a refrigerant commercial packaged rooftop systems with energy recovery wheel and microtech iii unit controller
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Installation and Maintenance Manual
Maverick
II
®
Commercial Packaged Rooftop Systems
Heating and Cooling
Models MPS015F – 0050F
15 to 50 Tons
R-410A Refrigerant
MicroTech
III Unit Controller
®
Energy Recovery Wheel
IM 1058-8
Group: Applied Air Systems
Part Number: IM 1058
Date: July 2017

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Summary of Contents for Daikin MPS015 F

  • Page 1 Installation and Maintenance Manual IM 1058-8 Group: Applied Air Systems Part Number: IM 1058 Date: July 2017 Maverick ® Commercial Packaged Rooftop Systems Heating and Cooling Models MPS015F – 0050F 15 to 50 Tons R-410A Refrigerant MicroTech III Unit Controller ®...

  • Page 2: Table Of Contents

    Performing Service Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Daikin Applied Tubular Heater Series Package Heater Module .

  • Page 3: General Information

    This manual provides general information about the “F” Unit Nameplate vintage Daikin Commercial Packaged Rooftop Unit model MPS. In addition to an overall description of the unit, it The unit nameplate is located on the outside of the main includes mechanical and electrical installation procedures, control box door.

  • Page 4: Mechanical Installation

    Service Clearance Allow service clearances as approximately indicated in Figure 1. Also, Daikin recommends providing a roof walkway to the rooftop unit as well as along each side of the unit that provides access to most controls and serviceable components.

  • Page 5: Ventilation Clearance

    eChanICal nsTallaTIon 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.

  • Page 6: Assembly Instructions

    eChanICal nsTallaTIon Assembly Instructions Assembly of a typical roof curb is shown in Figure 1 . Set curbing parts A thru G per dimensions shown over 4 . Position curb assembly over roof openings. Curb must roof opening or on a level surface. Note location of be level within 0.25 inches from side to side and 1.50 supply air opening.
  • Page 7 eChanICal nsTallaTIon Figure 3: Roof Curb Layout—MPS 015F – 020G www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 8 eChanICal nsTallaTIon Figure 4: Roof Curb Layout—MPS 026G – 035F 2.00 [51 mm] 23.50 21.25 2.00 [597 mm] [540 mm] [51 mm] 71.38 87.25 [1813 mm] [2216 mm] (INSIDE CURB) HOT WATER 15.87 ONLY [403 mm] CHASE 2.00 1.25 1.00 1.63 [51 mm] [32 mm] TYP...
  • Page 9 eChanICal nsTallaTIon Figure 5: Roof Curb Layout—MPS 040F – 050F 2.00 [51 mm] 30.63 28.25 [778 mm] [718 mm] 2.00 [51 mm] 71.38 [1813 mm] 87.25 [2216 mm] (INSIDE CURB) HOT WATER 15.87 ONLY [403 mm] CHASE 2.00 [51 mm] 1.25 TYP 1.00 1.63...
  • Page 10 eChanICal nsTallaTIon Figure 6: MPS 015–020 Roof Curb with Energy Recovery Wheel IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...

  • Page 11: Mechanical Installation

    eChanICal eChanICal nsTallaTIon nsTallaTIon Figure 7: MPS 026–035 Roof Curb with Energy Recovery Wheel www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 12 eChanICal nsTallaTIon Figure 8: MPS 040–050 Roof Curb with Energy Recovery Wheel IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...

  • Page 13: Rigging And Handling

    eChanICal nsTallaTIon Rigging and Handling Use spreader bars, 96" to 100" (2438 to 2540 mm) wide to WARNING prevent damage to the unit cabinet. Avoid twisting or uneven lifting of the unit. The cable length from the bracket to the hook Only trained and qualified personnel should be allowed to rig should always be longer than the distance between the outer loads or operate load rated cranes and/or hoist assemblies.
  • Page 14 eChanICal nsTallaTIon Table 4: Weight Distribution Locations (see Figure 10) Table 5: Weight Distribution Locations (see Figure 11) Distance Distance Unit Unit (tons) (tons) 040–050 42 .2 66 .6 58 .3 60 .9 015–035 35 .5 62 .0 52 .0 040–050 40 .0 69 .0...

  • Page 15: Condensate Drain Pipe Connection

    eChanICal eChanICal nsTallaTIon nsTallaTIon Condensate Drain Pipe Connection Figure 10: Rigging the Unit (MPS 026– 035 Example) The unit is provided with a 1" male NPT condensate drain connection. For proper drainage, level the unit and drain pan side to side and install a P-trap . Figure 12 shows the layout of the condensate drain connection.

  • Page 16: Cabinet Weather Protection

    Installing Ductwork Actuator On vertical-supply/vertical-return units, if a Daikin roof curb is not used, the installing contractor should make an airtight connection by attaching field fabricated duct collars to the bottom surface of the unit’s duct opening. Do not support the total weight of the duct work from the unit.
  • Page 17 Figure 15: Duct Static Pressure Sensing Tubing and reference pressure (LO) taps, or tag the tubes. Installation Daikin recommends 3/16" ID tubing. Main Control Panel Condenser Section 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 18 eChanICal nsTallaTIon Installing Building Static Pressure Figure 16: Outdoor Static Pressure Tubing Installation Sensor Taps If a unit has building static pressure control capability, you must field install and connect static pressure taps to the static pressure sensor SPS2 in the unit. This sensor is located at the bottom of the main control panel next to SPS1.

  • Page 19: Electrical Installation

    leCTrICal nsTallaTIon leCTrICal nsTallaTIon Field Power Wiring Wiring must comply with all applicable codes and ordinances. A ground lug is provided in the control panel. Size the The warranty is voided if wiring is not in accordance with these grounding conductor in accordance with Table 250-95 of the specifications.

  • Page 20: Electrical Installation

    leCTrICal nsTallaTIon leCTrICal nsTallaTIon Field Control Wiring The Maverick rooftop units are available with the following field Descriptions of these field connections are included in the control connections: MicroTech III Unit Controller manual 920). • Space sensor. WARNING • Space sensor with setpoint adjustment. Electrical shock hazard .

  • Page 21: Preparing Unit For Operation

    reParInG nIT for PeraTIon reParInG nIT for PeraTIon Spring Isolated Fans Figure 18: Spring Mounts WARNING Moving machinery hazard. Can cause severe injury ordeath. Before servicing equipment, disconnect power and lockoff. More than one disconnect may be required to de-energizeunit. Prior to operating the fans for the first time, refer to Check, Test, and Start Procedures on page...

  • Page 22: Optional Gas Heat

    PTIonal PTIonal Daikin Applied Tubular Heater Series Package Heater Module ANSI Z83 .8-2013/CSA 2 .6-2013 Hooded and screened openings for combustion air have been provided in the furnace(s) access door. The air opening provides unrestricted combustion air to the burners and sized such that DANGER a minimum free area is maintained.

  • Page 23: Gas Furnace Design

    PTIonal PTIonal Gas Furnace Design If the 8th digit in the model number is a “G”, the rooftop unit Figure 19: Gas Heat Section was furnished with a factory installed furnace (Example, MPS035FG). The Maverick commercial rooftop units are available with either the low heat input or the high heat input furnace (see capacities in Table 15).
  • Page 24 Ventilation & Flue Pipe Requirements Warranty is void if the furnace is operated in the presence of The Daikin rooftop unit is equipped with an outdoor air hood chlorinated vapors, if the airflow through the furnace is not in to supply adequate combustion air. The unit also has a flue...

  • Page 25: Installation

    PTIonal Installation Outdoor Air (OA) Hood IMPORTANT The OA hood (Figure 22) is not installed at the factory This furnace must be installed by an experienced becauseit would increase the width of the unit beyond the professional installation company that employs fully allowableshipping width.
  • Page 26 Optional Gas Heat Electrical Gas Piping The Daikin burner receives its electrical power from the main Gas piping must be sized to provide the minimum required unit control panel. No additional power wiring must be routed pressure at the burner when the burner is operating at to the burner.

  • Page 27: Optional Gas Heat

    For elevations up to 2000 feet, rating plate input ratings apply. less than 0.5 psi (3.5 kPa) of the gas supply piping system. For high altitudes (elevations over 2000 ft) contact Daikin The appliance and its individual shut-off valve must be Applied Parts.
  • Page 28 PTIonal Gas Pipe Manifold Pressure Adjustment for Natural Gas Fuel For Two Stage Furnace For Modulating Furnace: 1 . Read gas pressure at the Inlet Pressure Tap of the 1 . Read gas pressure at the Inlet Pressure Tap of the Honeywell VR8305Q Gas Safety Control Valve (Figure Honeywell VR8305Q Gas Safety Control Valve...
  • Page 29 PTIonal Gas Pipe Manifold Pressure Adjustment for Propane Gas Fuel: For Two Stage Furnace: For Modulating Furnace: 1 . Read gas pressure at the Inlet Pressure Tap of the 1 . Read gas pressure at the Inlet Pressure Tap of the Honeywell VR8305Q Gas Safety Control Valve (Figure Honeywell VR8305Q Gas Safety Control Valve...
  • Page 30 PTIonal Figure 27: Capacity of Pipe Natural Gas (CFH) With Pressure Drop of 0.3" W.C. & Specific Gravity of 0.60 Pipe Size-inches (Ips) Pipe Length (ft) ½ ¾ 1¼ 1½ 2½ 1050 1600 2050 4800 8500 17500 1100 2100 3300 5900 12000 1650...
  • Page 31 PTIonal Sequence of Operation (Modulating Burner) Low Heat Option with Modulation High Heat Option with Modulation The following details the sequence of operation for the low The following details the sequence of operation for the high heat option. heat option. This option includes dual burners with one being modulating and the other being 2 stage control.

  • Page 32: Start-Up Procedures

    Daikin trained technicians who are familiar with working on limits specified on the furnace rating plate. live equipment. A representative of the owner or the operator of the equipment should be present during start-up to receive 1 .
  • Page 33 PTIonal Service Start-Up 1 . Set the thermostat to the lowest setting. The furnace DDC controller has diagnostic information for troubleshooting the furnace operation. The ignition control 2 . Turn off all electric power to the appliance. module has a LED light that will flash when an abnormal 3 .
  • Page 34 PTIonal Ignition Control Module for Staged Gas Furnace Figure 28: Typical Staged Gas Furnace Electrical Schematic with Sensor white TB_L1 TB_L2 black white 115VAC Class II 40VA TB_2G green violet 24VAC Ignition Module (IM) Green Gas Valve Air Pressure Switch (APS) orange green...
  • Page 35 Sensi ng hose to fan Variable Furnace Controller Ignition Control Module LED Diagnostics Daikin's furnace controller is an electronic device that delivers full control of the modulating furnace. Control includes The LED indicators (Table 20) can be used to diagnose faults sequencing, ignition, safety, modulation of the control valve, associated with the modulating gas furnace.
  • Page 36 Inducer Fan Motor Variable Furnace Controller Daikin's furnace controller is an electronic device that delivers full control of the modulating furnace. Control includes sequencing, ignition, safety, modulation of the control valve, and the induced draft motor. Inputs to the furnace control board are an a 0-10V signal.
  • Page 37 PTIonal Ignition Control Module LED Diagnostics The LED indicators (Table 21) can be used to diagnose faults associated with the modulating gas furnace. Table 21: Modulating Ignition Control Troubleshooting Guide (UTEC 1171 Ignition Board) LED Indicator System Status Fault Description Possible Causes and Corrective Action Heartbeat System Normal...

  • Page 38: Optional Electric Heat

    PTIonal leCTrIC PTIonal leCTrIC Electric Heater Design Figure 31: Electric Heat Section If the 8th digit in the model number is an “E”, the rooftop unit was furnished with a factory installed electric furnace (Example, MPS035FE). The Maverick commercial rooftop units are available with low, medium, or high heat output (see capacities in Table...

  • Page 39: Optional Modulating Hot Gas Reheat

    PTIonal odUlaTInG eheaT PTIonal odUlaTInG eheaT Modulating Hot Gas Reheat Figure 32: Ideal for Neutral Air Ventilation Control The reheat coil option comes complete with an aluminum micro channel coil and modulating hot gas valves for leaving air temperature control. On a call for dehumidification, the unit will enable the supply to be over-cooled by the DX coil.

  • Page 40: Optional Modulating Hot Gas Reheat

    PTIonal odUlaTInG eheaT PTIonal odUlaTInG eheaT Dehumidification Initiation Control & Arrangement An analog sensor is mounted in the return duct, the space, or In conjunction with dehumidification, MHGRH is used to raise outdoors to sense Relative Humidity. The location is selected the temperature of the cooled air to a desirable value.
  • Page 41 PTIonal odUlaTInG eheaT • Lead/Lag Arrangement w/ MHGRH (when applicable) • In the reheat mode, the minimum position for the reheat valves is 10% (1.0 Vdc). The controller will modulate the — Alternate staging with circuit #1 as lead will be the reheat valves from this starting position.

  • Page 42: Optional Hot Water Heat

    Some products have higher freeze points in natural state than when mixed with water. The freezing of coils is not the responsibility of Daikin. Figure 35: Hot Water Heating Schematic Figure 36: Hot Water Heat Vestibule...
  • Page 43 PTIonal aTer Hot Water Pressure Drop Data Figure 37: MPS 015 – 017 Low and High Heat Figure 38: MPS 020 Low and High Heat www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 44 PTIonal aTer Figure 39: MPS 026 – 035 Low and High Heat Figure 40: MPS 040 – 050 Low and High Heat IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...

  • Page 45: Optional Energy Recovery Wheel

    Return air – The air stream that is returned from the building. Your Daikin enthalpy wheel is delivered completely assembled Return air becomes exhaust air after going through the and ready to run. The wheel is built to provide many years enthalpy wheel.
  • Page 46 Figure 41: Wheel Construction (Side-by-Side) (1) Currently, only the Over-Under configuration is offered on Daikin roof-top systems and air handlers. Purge and Pressurization Pressurization is critical to minimize crossover from exhaust Figure 42: Purge Detail supply and to allow the purge to operate .
  • Page 47 During extremely cold winter conditions, exhaust air stream To chart, and it does not occur when these two lines do not circumvent this possiblity, Daikin offers three factory installed intersect (see Figure 39). frost protection options with the MicroTech III system.

  • Page 48: Optional Outdoor Air Monitor

    PTIonal UTdoor onITor PTIonal UTdoor onITor Thermal Dispersion Airflow Measurement Technology Connecting to MicroTech III Controllers Thermal dispersion technology relates the velocity of the air to the power and rise in temperature of a heated element in a moving airstream. A precise bead-in glass thermistor probes Wiring the airflow rate and air temperature.
  • Page 49 PTIonal UTdoor onITor Figure 47: MicroTech III Controller Figure 48: Transmitter and Connector Detail Transmitter Connector www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 50 (for example cfm) the transmitter is operating in the Field readings regardless on installed altitude. Refer to the SETUP Calibration Wizard mode. Daikin users do not need to use this MENUS of Figure 102 for the *ALT= menu item, and set this function.
  • Page 51 PTIonal UTdoor onITor Table 25: General Troubleshooting Problem Possible Cause Remedy Power switch not in the "ON" position. Move the power switch to the "ON" position. Ensure that 24VAC power is connected to L1 and L2 Improper supply voltage to the power input terminal of the POWER terminal block and that the voltage No LCD display indication and the green Transmitter block.
  • Page 52 If a differential pressure measurement is required, There is no value for the differential pressure point that have a Bi-directional Bleed Airflow Sensors contact your local Daikin Representative about a Bi- connected. directional Bleed Airflow Sensor. IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...

  • Page 53: Unit Options

    PTIons PTIons Economizer Enthalpy Control Proof-of-Airflow and Dirty Filter Switch The economizer can be ordered with the optional differential enthalpy control. With this option a solid-state humidity and The proof-of-airflow switch (PC7) and the dirty filter switch temperature sensing device is located in the return and (PC5) are supplied on all CAV units.

  • Page 54: Convenience Receptacle (Field Powered)

    PTIons Convenience Receptacle Convenience Receptacle (Field Powered) (Unit Powered) A Ground Fault Circuit Interrupter (GFCI) convenience A Ground Fault Circuit Interrupter (GFCI) convenience receptacle is provided in the main control box on all units. To receptacle is provided in the main control box on all units. The use this receptacle, connect a separate field-supplied 115 V receptacle shall be powered by a factory installed and wired power wiring circuit to the outlet.

  • Page 55: Condenser Fan Operation For Variable Speed Compressor

    Condenser Fan Operation for Variable Speed Compressor Low Ambient Option (MPS 040 and 050 Only) Daikin’s head pressure control operates by modulating the Figure 51: R-410A Speedtrol motor speed of one condenser fan on the VFD compressor refrigeration circuit in response to the condenser pressure.

  • Page 56: Vfd Compressor Operation

    PTIons VFD Compressor Operation When a MPS is equipped with the VFD compressor option VFD compressor modulation is additionally monitored and there are two refrigeration circuits, one VFD controlled adjusted in order to maintain operation within the approved compressor with up to 3 fixed speed compressors depending compressor operating envelope.
  • Page 57 PTIons VFD Compressor Control Dehumidification Transition During Cooling State Control of the VFD compressor is accomplished with a digital output enable signal and a 0-10VDC analog modulating When dehumidification operation becomes active while the control signal. unit is in the Cooling operating state, The VFD compressor is ramped to its maximum capacity.
  • Page 58 PTIons VFD Compressor Protection Unloading If the oil balance mode fails to resolve the low oil condition, or the fixed speed compressor was not running when the low Control oil indication occurred, or the VFD compressor was not part of a tandemized compressor set, when the low oil indication There are several modulating control functions that adjust the occurred, the unit will enter boost mode speed control range of the VFD compressor to protect it from...
  • Page 59 PTIons High Discharge Line Temperature Unloading High Superheat Control If the VFD compressor discharge superheat rises to 75F for 10 consecutive minutes, the VFD compressor speed is reduced A compressor discharge temperature sensor (Thermistor) is by 10 rps increments down to a 40 rps operating speed. installed on the VFD compressor as standard.
  • Page 60 PTIons Condenser Coil Splitter Solenoid Valve Control VFD Compressor Emergency Stop Control (MPS 040 and 050 Only) If the VFD compressor enable output signal has been ON for 30 seconds and the controller fails to receive the VFD run Condenser coil splitting is avaialble only on VFD compressor verification input, VFD Compressor Emergency Stop Control is circuit of a unit with low ambinet option.

  • Page 61: Variable Speed Scroll Compressor

    EN378 (or other applicable local safety regulations) requirements must be fulfilled. Daikin units with variable speed inverter compressor are engineered with fixed speed compressor(s) in such a way that the unit delivers only the required energy to satisfy space conditions and provides you with exceptional energy savings.
  • Page 62 PTIons Oil Injection Control Optical Oil Level Sensor The VFD compressor contains an oil injection valve and An optical oil sensor is used to monitor oil level in VFD solenoid (SV11) as standard. The oil injection valve provides compressor sump. The sensor is mounted directly to a fitting lubrication to the scroll set under low speed/low refrigerant on the VFD compressor shell and can be removed without velocity situations.
  • Page 63 PTIons Variable Frequency Drive for VFD Compressor Basic Operation of Compressor Drive: WARNING Never bypass the compressor drive or directly connect the Start= Connect terminals 12 & 18 for minimum of 5 secs, VFD compressor to the main power supply. connect terminals 12 &27 and terminals 13 &37 Stop= Disconnect terminals 12 &...

  • Page 64: Wiring Diagrams

    IrInG IaGrams IrInG IaGrams Figure 61: VAV Power – Fixed Speed Scroll Compressor IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 65 IrInG IaGrams Figure 61 continued: VAV Power – Fixed Speed Scroll Compressor www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 66 IrInG IaGrams Figure 62: MPS 026 VAV Power with Variable Speed Inverter Compressor IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 67 IrInG IaGrams Figure 62 continued: MPS 026 VAV Power with Variable Speed Inverter Compressor www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 68 IrInG IaGrams Figure 63: MPS 030–050 VAV Power with Variable Speed Inverter Compressor IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 69 IrInG IaGrams Figure 63 continued: MPS 030–050 VAV Power with Variable Speed Inverter Compressor www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 70 IrInG IaGrams Figure 64: VAV Control – Inputs IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 71 IrInG IaGrams Figure 64 continued: VAV Control – Inputs www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 72 IrInG IrInG IaGrams IaGrams Figure 65: MPS 026 VAV Control with Variable Speed Inverter Compressor IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 73 IrInG IaGrams Figure 65 continued: MPS 026 VAV Control with Variable Speed Inverter Compressor www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 74 IrInG IaGrams Figure 66: MPS 026 with Variable Speed Inverter Compressor – without Low Ambient Option IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 75 IrInG IaGrams Figure 67: MPS 030 – 050 VAV Control with Variable Speed Inverter Compressor www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 76 IrInG IrInG IaGrams IaGrams Figure 67 continued: MPS 030 – 050 VAV Control with Variable Speed Inverter Compressor IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 77 IrInG IaGrams Figure 68: MPS 040 – 050 with Variable Speed Inverter Compressor – with Low Ambient Option www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 78 IrInG IaGrams Figure 69: VAV Control – Outputs (Staged Gas Heat) IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 79 IrInG IaGrams Figure 69 continued: VAV Control – Outputs (Staged Gas Heat) www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 80 IrInG IaGrams Figure 70: CAV Power IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 81 IrInG IaGrams Figure 70 continued: CAV Power www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 82 IrInG IaGrams Figure 71: CAV Control – Inputs IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 83 IrInG IaGrams Figure 71 continued: CAV Control – Inputs www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 84 IrInG IrInG IaGrams IaGrams Figure 72: CAV Control – Outputs (Staged Gas Heat) Figure 73: VAV/CAV Control – Outputs (Modulating Gas Heat) IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 85 IrInG IaGrams Figure 74: Electric Heat Option Power Figure 75: Electric Heat Option – Outputs www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 86 IrInG IaGrams Figure 76: Energy Recovery IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 87 IrInG IaGrams Figure 76 continued: Energy Recovery www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 88 IrInG IrInG IaGrams IaGrams Figure 77: Energy Recovery Main Control Board IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS www.DaikinApplied.com...
  • Page 89 IrInG IaGrams Figure 77 continued: Energy Recovery Main Control Board www.DaikinApplied.com IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...

  • Page 90: Sequence Of Operation

    eqUenCe of PeraTIon eqUenCe of PeraTIon Operating States Heating The transition from any operating state to another is graphically represented in Figure 78 . The unit's heating mode of operation is controlled by the control temperature and the heating setpoint temperature. The Figure 78: State Diagram unit goes into the heating mode of operation by analyzing the control temperature.

  • Page 91: Mechanical Cooling

    eqUenCe of PeraTIon Mechanical Cooling Constant Volume (Space Comfort The unit controller will turn on the next stage of compressor operation, or turn off a stage of compressor operation, to Controller) maintain the discharge air temperature setpoint within the deadband. When a compressor stage turns on, the next The control temperature for a CAV unit is typically the space compressor stage up or down will not take place for the next 4 temperature.

  • Page 92: Check, Test, And Start Procedures

    18 . Inspect the outside and inside of the unit for any signs of damage or rough handling. Excessive air leakage would be one possible, unacceptable consequence. If any problems are found, contact the local Daikin representative for instructions. IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS...
  • Page 93 heCk TarT roCedUres Power-Up Compressor Start-Up 1 . Close the unit disconnect switch. CAUTION 2 . Power should now be supplied to the control panel. Low ambient temperature hazard . Can cause compressor damage . Do not attempt to start up and check out the Fan Start-Up refrigeration system when the outdoor air temperature is 1 .
  • Page 94 heCk TarT roCedUres Scroll Compressor Rotational Direction 4 . Verify that the condenser fans are cycling and rotating properly (blowing air upward). When the compressor Scroll compressors only compress in one rotational direction. starts, at least one condenser fan should also start. Three-phase compressors rotate in either direction depending 5 .
  • Page 95 heCk TarT roCedUres Expansion Valve Superheat Adjustment Drive Belt Tension Adjustment It is very important that the expansion valve superheat setting 1 . The ideal tension is the lowest tension at which the belt be adjusted to be between 10°F (5.5°C) and 13°F (7.2°C). will not slip under peak load conditions.

  • Page 96: Energy Recovery Wheel

    heCk TarT roCedUres Energy Recovery Wheel Prestartup Checks Figure 81: Energy Recovery Wheel 1 . By hand, turn wheel clockwise (as viewed from the pulley side) to verify wheel turns freely through 360° rotation. 2 . During rotation confirm wheel segments are fully engaged in the wheel frame and segment retainers are completely fastened 3 .

  • Page 97: Final Control Settings

    When all start-up procedures are completed, set the controls and program the MicroTech III controller for normal operation. Daikin recommends that the MicroTech III controller’s setpoints Use the following list as a guide; some items may not apply to and parameters be recorded and saved for future reference.

  • Page 98: Maintenance

    aInTenanCe aInTenanCe Performing Service Maintenance Planned Maintenance Installation and maintenance must be performed only by qualified personnel who are experienced with this type of Preventive maintenance is the best way to avoid unnecessary equipment and familiar with local codes and regulations. expense and inconvenience.
  • Page 99 In the unlikely occurence of a coil leak, contact Daikin to CAUTION receive a replacement coil module. Potential equipment damage. If a standard copper brazing...
  • Page 100 aInTenanCe Cleaning Option E Coated Coils Routine Quarterly Cleaning of Option E Coated The following cleaning procedures are recommended as part of the routine maintenance activities for Option E Coated Coils. Coil Surfaces Documented routine cleaning of Option E Coated Coils is Quarterly cleaning is essential to extend the life of an Option required to maintain warranty coverage.
  • Page 101 aInTenanCe Recommended Coil Cleaner Cautions The following cleaning agent, assuming it is used in accordance with the manufacturer’s directions on the container for proper mixing and cleaning, has been approved for use Harsh Chemical and Acid Cleaners on Option E Coated Coils to remove mold, mildew, dust, soot, Harsh chemicals, household bleach or acid cleaners should greasy residue, lint and other particulate: not be used to clean outdoor or indoor Option E Coated...

  • Page 102: Control Panel Components

    aInTenanCe Control Panel Components The following individual motor protection is provided. Table 31: Maverick Individual Motor Control and Protection Other MMP Features: • Three-position rotary operator: OFF (O)-TRIP-ON (I) Motor Type Short Circuit Overload ON-OFF (Figure 84). Compressor < 100 Internal Contactor Amps...
  • Page 103 aInTenanCe 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.
  • Page 104 aInTenanCe Field Wiring Terminals Phase Voltage Monitor (PVM) All field wiring terminals are spring clamp type, which offer The phase voltage monitor (Figure 88) 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 105: Unit Storage

    Once a month, open a door on each section and verify that no moisture or debris is accumulating in the unit. Control Compartment 1 . Daikin recommends that the electronic control equipment in the unit be stored in a 5% to 95% RH (non- condensing) environment.

  • Page 106: Bearing Lubrication

    aInTenanCe Restart Vibration Levels After extended storage, perform a complete start up. Inevitable Each unit as shipped is trim balanced to operate smoothly. To accumulations of dirt, insect nests, etc. can contribute to provide satisfactory operation after shipping and installation, problems if not cleaned out thoroughly prior to start up.

  • Page 107: Energy Recovery Wheel

    aInTenanCe Energy Recovery Wheel Drive Belts CAUTION The wheel drive belt is a urethane stretch belt designed Installation and maintenance must be performed only by to provide constant tension through the life of the belt. No qualified personnel who are experienced with this type of adjustment is required.
  • Page 108 Wash the segments or small wheels in a 5% solution of non-acid based coil cleaner (such as Acti-Klean, available through Daikin, Stock # AK1) or alkaline detergent and warm water. Soak in the solution until grease and tar deposits are loosened (Note: some staining of the desiccant may remain and is not harmful to performance).

  • Page 109: Segment Installation & Replacement

    aInTenanCe Segment Installation & Figure 92: Installing Wheel Segments Replacement Wheel segments are secured to the wheel frame by a Segment Retainer which pivots on the wheel rim and is held in place by a Segment Retaining Catch (Figure 91). To install wheel segments follow steps 1 through 5 (Figure 92).

  • Page 110: Belt Replacement

    aInTenanCe Belt Replacement Troubleshooting 1 . Obtain access to the pulley side bearing access plate The following table may be used as a quick-reference for and remove two retaining screws. identifying common symptoms and possible causes related to the recovery wheel. 2 .

  • Page 111: Supply Fan

    aInTenanCe Supply Fan Refrigerant Charge The unit nameplate references proper charge for each refrigerant Setscrews circuit in case a full charge must be added to the unit. Setscrews are used to lock bearings, sheaves, locking CAUTION collars, and fan wheels to their shafts. They must be checked periodically to see that they have not loosened.

  • Page 112: Service And Warranty Procedure

    2 . Send a completed parts order form to the Daikin Parts When contacting Daikin for service or replacement parts, Department .

  • Page 113: Warranty Registration Form

    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 114 arranTy eGIsTraTIon 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 115 arranTy eGIsTraTIon 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 116 arranTy eGIsTraTIon 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 117 arranTy eGIsTraTIon 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 118 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 119: 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: Appendix - Keypad/Display Menu Structure

    – k PPendIx eyPad IsPlay TrUCTUre 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. Figure 96: Main Menu –...
  • Page 121 – k PPendIx eyPad IsPlay TrUCTUre Commission Unit Manual Control Service Menus Trending Unit Maintenance BMS Communications ► ► ► Unit Set-Up Manual Control= Normal Timer Settings Trending Ena= No Operating Hours LON Set-Up ► ► ► Timer Settings Supply Fan= Off Operating Hours Apply Chgs= No BACnet MSTP Set-Up...
  • Page 122 – k PPendIx eyPad IsPlay TrUCTUre Figure 97: View/Set Unit – Keypad/Display Menu Structure View/Set Unit ► Unit Status/Settings ► Occupancy ► Temperatures ► Flow Status ► SAF Spd Control ► RF/EF Control ► Cooling ► Economizer ► Min OA Damper ►...
  • Page 123 – k PPendIx eyPad IsPlay TrUCTUre Date/Time/Schedules Cooling Economizer Min OA Damper Heating Dehumidification Time= hh:mm:ss Occ Clg Spt= 72.0°F OAD/Econo Pos= XXX% Min OA Pos= XXX% Occ Htg Spt= 68.0°F Dehum Status= ________ Date= MM/DD/YY Unocc Clg Spt= 85.0°F DAT Clg Spt= 55.0°F Vent Limit= 20% Unocc Htg Spt= 55.0°F...
  • Page 124 – k PPendIx eyPad IsPlay TrUCTUre Figure 98: Commission Unit – Keypad/Display Menu Structure 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 ► Econo Set-Up ►...
  • Page 125 – k PPendIx eyPad IsPlay TrUCTUre 1, 2 See Figure 99, page 127 for the expansion information INV Cmp Set-Up RF/EF Set-Up Htg/Clg ChgOvr Set-Up Cooling Set-Up COMPRESSOR STATUS COMPRESSOR SETUP RF/EF Ctrl= None Ctlr Temp Src= RAT Clg Stage Time= 5min Clg State= ____________ Clg Lo OAT Lk= 55°F Rem ExhF Cap= 5%...
  • Page 126 – k PPendIx eyPad IsPlay TrUCTUre Figure 99: Service Menu – Keypad/Display Menu Structure Service Menus ► Timer Settings ► Operating Hours ► Save/Restore Settings ► Active Alarms ► Alarm Log ► Alarm Configuration ► Analog Input Status ► Universal I/O Status ►...
  • Page 127 – k PPendIx eyPad IsPlay TrUCTUre Alarm Log Alarm Configuration Analog Input Status Universal I/O Status Digital Input Status Digital Output Status ► Log Count: xx Clr Log= No ALARM LIMITS MCB Al1= XXXXXXXX MCB X1= XXXXXXXX MCB DI1= ____________ MCB DO1= __________ ►...
  • Page 128 – k PPendIx eyPad IsPlay TrUCTUre Figure 100: BMS Communications – Keypad/Display Menu Structure 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...
  • Page 129 – k PPendIx eyPad IsPlay TrUCTUre Figure 102: Optional Outdoor Air Monitor – Changing the System of Units Press and release ↑/↓ during normal operation to select Enter ↑/↓ (Select) Enter (Move →) Enter (Move →) (Action, Move →→) During Esc (Move ←) Esc (Move ←) Normal Operation...
  • Page 130 – k PPendIx eyPad IsPlay TrUCTUre Figure 103: Optional Outdoor Air Monitor – Set Up Menu Press and release ↑/↓ during normal operation to select Enter (Move →) Enter (Move →) Enter (Move →) Enter (Action, Move →→) Esc (Normal Operation) Esc (Move ←) Esc (Move ←) Esc (Move ←←)
  • Page 131 – k PPendIx eyPad IsPlay TrUCTUre 1 . Factory default/current setting 2 . If a selection is made that requires SW1 to be set, the LCD displays “Set SW1 on Board”. 3 . If a selection is made that requires SW2 to be set, the LCD displays “Set SW2 on Board”.
  • Page 132 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.

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