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Daikin Maverick I Installation And Maintenance Manual

Commercial packaged rooftop systems
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Installation and Maintenance Manual
Maverick™ I
Commercial Packaged Rooftop Systems
Heating & Cooling
Models MPS015B - MPS025B
15 to 25 Tons
R-410A Refrigerant
© 2010 Daikin
IM 972-1
Group: Applied Air Systems
Part Number: IM 972-1
Date: July 2010

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Summary of Contents for Daikin Maverick I

  • Page 1 Installation and Maintenance Manual IM 972-1 Maverick™ I Group: Applied Air Systems Part Number: IM 972-1 Commercial Packaged Rooftop Systems Date: July 2010 Heating & Cooling Models MPS015B - MPS025B 15 to 25 Tons R-410A Refrigerant © 2010 Daikin...

  • Page 2: Table Of Contents

    Contents Introduction ....... 3 Curb Dimensions ......30 Performance Data .

  • Page 3: Introduction

    The units are weatherized section of these instructions. for mounting outside of the building. Daikin IM 972-1...

  • Page 4: Mechanical Installation

    Daikin IM 972-1...

  • Page 5: Outside Slab Installation

    A/C condenser fins free and clear of page obstructions such as weeds, shrubs, vines, snow, etc. Secure the return and supply cover to front bracket with Inform the user accordingly. two (2) screws. Figure 1: Outside Slab Construction Figure 2: Horizontal Conversion Detail Daikin IM 972-1...

  • Page 6: Filter Replacement

    A – FRONT 80” B – CONDENSER COIL 18” + C – DUCT SIDE 18/42” *D – EVAPORATOR END 18/48” E – ABOVE 60” * WITHOUT ECONOMIZER/48” WITH ECONOMIZER VERTICAL CLEARANCE Figure 4: Unit Mounted on Roofcurb Daikin IM 972-1...

  • Page 7: Rooftop Installation

    DUCT FLANGE NOT TO EXCEED 1” [25 mm] ROOFCURB INSTALL GASKET NAILING STRIP RETURN DUCT 50-3/4” X 22” [1289 x 559 mm] MAX SUPPLY DUCT 42” X 23-3/4” [1089 X 603 mm] MAX CAULK ALL JOINTS WATERTIGHT Daikin IM 972-1...

  • Page 8: Ducting

    2" of insulation. Half-inch to 1" thick insulation is usually sufficient for ductwork inside the air conditioned space. Daikin IM 972-1...

  • Page 9: Gas Supply, Condensate Drain

    ) may be determined by consulting the local natural gas utility or the specified or approved parts. In the commonwealth of LP gas supplier. Massachusetts, installation must be performed by a licensed plumber or gas fitter for appropriate fuel. Daikin IM 972-1...

  • Page 10: Adjusting Or Checking Furnace Input

    USA ONLY (see ANSIZ223.1), the burner orifices must be TERMINAL sized to reduce the input 4% for each 1,000 feet (305 meters) INLET PRESSURE above sea level. TAP-1/8 NPT LOW STAGE ADJUSTMENT HIGH STAGE ADJUSTMENT UNDER VENT CAP UNDER VENT CAP Daikin IM 972-1...

  • Page 11: Condensate Drain

    2,394 2,205 2,047 1,921 1,811 Condensate Drain Figure 10: Condensate Drain The condensate drain connection of the evaporator is threaded 1" nominal iron pipe. IMPORTANT: Install a condensate trap to ensure proper condensate drainage (see Figure 10). Daikin IM 972-1...

  • Page 12: Electrical Installation

    CONTROL VOLTAGE KNOCKOUT WIRE FROM ZONE THERMOSTAT WIRE SIZE FROM MIN. CIRCUIT AMPACITY STRAIGHT CONDUIT STRAIGHT CONDUIT FITTING FITTING SIZED PER CHART GAS LINE CONDUIT FROM ZONE THERMOSTAT CONDUIT FROM POWER SUPPLY SIZED PER CHART Daikin IM 972-1...

  • Page 13: Hook-Up

    208 volt applications. See unit wiring diagram for 208 volt wiring. Figure 15, page 15 for an example of a typical customer supplied wiring diagram. Daikin IM 972-1...

  • Page 14: Optional Factory Supplied Thermostat

    Malfunction indicator for systems with malfunction connection Heat Relay/Emergency Heat Relay (Stage 1) 2nd Stage Heat (3rd Stage Heat in HP2) Blank Blank Common (DC) for wired remote temperature sensor Frequency signal from remote temperature sensor Power (DC) to remote temperature sensor Daikin IM 972-1...

  • Page 15: Wiring Diagrams

    W1, W2, and Y2 are optional depending upon the size and selected options of the unit. Colors shown above are typical for the MPS I. 2) For wiring with DDC control option, see OM 1077 for wiring instructions. Daikin IM 972-1...
  • Page 16 Electrical Installation Figure 17: Wiring Diagram: MPS 015B – 025B, 208-230/460 V (Gas Heat) Daikin IM 972-1...
  • Page 17 Electrical Installation Figure 18: Wiring Diagram: MPS 015B – 025B, 208-230/460 V (Cooling Only) Daikin IM 972-1...
  • Page 18 Electrical Installation Figure 19: Wiring Diagram: MPS 015B – 025B, 575V (Gas Heat) Daikin IM 972-1...
  • Page 19 Electrical Installation Figure 20: Wiring Diagram: MPS 015B – 025B, 575V (Cooling Only) Daikin IM 972-1...
  • Page 20 Electrical Installation Figure 21: MPS 015F - 025F 208-230/460/575 V DDC Controls w/ Gas Heat Daikin IM 972-1...
  • Page 21 Electrical Installation Figure 22: Wiring Diagram: MPS 015B - 025B, 575 Volt (Gas Heat) Daikin IM 972-1...
  • Page 22 Electrical Installation Figure 23: MPS 015F - 025F 208-230/460/575 V DDC Controls w/ Cooling Only Daikin IM 972-1...

  • Page 23: Physical Data

    No. size (in.) [mm] [51x635x508] [51x635x508] [51x635x508] Refrigerant Charge oz. [g] 205/211 [5812/5982] 402/331 [11397/9384] 339/357 [9611/10121] Weight Net weight lbs. [kg] 2000 [907] 2341 [1062] 2433 [1104] Shipping weight lbs. [kg] 2100 [953] 2441 [1107] 2533 [1149] Daikin IM 972-1...

  • Page 24: Electrical Data

    Amps (LRA), Comp. 1 HP, Compressor 2 7-1/2 7-1/2 11-1/2 Amps (RLA), Comp. 2 12.2 14.7 18.6 Amps (LRA), Comp. 2 Condenser Motor Phase Amps (FLA, each) Amps (LRA, each) Note: *Unit operating voltage range is 414 - 506 Daikin IM 972-1...

  • Page 25: Mca And Mcop

    38.0 40.0 28.0 30.0 MCOP 100.0 100.0 45.0 50.0 35.0 35.0 101.0 109.0 52.0 56.0 40.0 42.0 MCOP 125.0 125.0 60.0 70.0 50.0 50.0 147.0 149.0 60.0 63.0 47.0 50.0 MCOP 175.0 175.0 70.0 80.0 60.0 60.0 Daikin IM 972-1...

  • Page 26: Auxiliary Heater Kit Performance

    57.6 69.3 CE75D 86.6 NONE — — CE20D 19.2 23.1 High CE40D 38.4 46.2 Static Drive CE60D 57.6 69.3 CE75D 86.6 NONE — — CE20D 19.2 23.1 CE40D 38.4 46.2 Static Drive CE60D 57.6 69.3 CE75D 86.6 Daikin IM 972-1...
  • Page 27 Static Drive CE60Y 57.6 55.4 CE75Y 69.3 NONE — — CE20Y 19.2 18.5 CE40Y 38.4 Static Drive CE60Y 57.6 55.4 CE75Y 69.3 NONE — — CE20Y 19.2 18.5 High CE40Y 38.4 Static Drive CE60Y 57.6 55.4 CE75Y 69.3 Daikin IM 972-1...

  • Page 28: Dimensional Data

    [3863 mm] KNOCKOUT LOCATIONS – DISCONNECT – OUTLET – POWER – LOW VOLTAGE OPTIONAL HORIZONTAL SUPPLY CONNECTION OPTIONAL HORIZONTAL RETURN CONNECTION OPTIONAL OUTDOOR HOOD LOCATION ACCESS DOOR CONTROL PANEL/FILTER ACCESS DOOR CONDENSATE DRAIN (1 [25.4 mm] FNPT) Daikin IM 972-1...
  • Page 29 [3863 mm] KNOCKOUT LOCATIONS – DISCONNECT – OUTLET – POWER – LOW VOLTAGE OPTIONAL HORIZONTAL SUPPLY CONNECTION OPTIONAL HORIZONTAL RETURN CONNECTION OPTIONAL OUTDOOR HOOD LOCATION ACCESS DOOR CONTROL PANEL/FILTER ACCESS DOOR CONDENSATE DRAIN (1 [25.4 mm] FNPT) Daikin IM 972-1...

  • Page 30: Horizontal Duct Dimensions

    Dimensional Data Horizontal Duct Dimensions Figure 26: MPS 015B – 025B Horizontal Duct Dimensions RETURN DUCT SUPPLY DUCT Curb Dimensions Figure 27: MPS 015B – 025 Curb Dimensions Daikin IM 972-1...

  • Page 31: Performance Data

    Performance Data Airflow Performance Performance Data Figure 28: Airflow Performance—MPS 015B Daikin IM 972-1...
  • Page 32 Performance Data Figure 29: Airflow Performance—MPS 020B Daikin IM 972-1...
  • Page 33 Performance Data Figure 30: Airflow Performance—MPS 025B Daikin IM 972-1...

  • Page 34: Accessories

    Accessories Accessories Table 18: Accessory Weights Accessory Daikin Part Number Shipping Weight Operating Weight Economizer, 3-5 ton, Vert/Horiz MXRD-TECM3 70 [32] 60 [27] Economizer, 6-12 ton, Vertical MXRD-PDCM3 90 [41] 81 [32] Economizer, 6-12 ton, Horizontal MXRD-RDCM3 90 [41] 81 [32]...

  • Page 35: Economizers

    • Field assembled hood ships with economizer • Slip-in design for easy installation • Economizer ships complete for downflow duct application • Plug-in polarized electrical connections • Field installed power exhaust available Figure 31: Economizer: MPS 015B – 025B Daikin IM 972-1...

  • Page 36: Economizers: 15-25 Tons [52.8-87.9 Kw] Horizontal Duct Installation

    • Field assembled hood ships with economizer • Slip-in design for easy installation • Economizer ships complete for downflow duct application • Plug-in polarized 12 pin electrical connections • Field installed power exhaust available Figure 32: Economizer: MPS 015B – 025B Daikin IM 972-1...

  • Page 37: Fresh Air Dampers And Power Exhaust

    Accessories Fresh Air Dampers and Power Exhaust Table 19: Air Damper and Exhaust Accessories Daikin Model No. Description RXRX-CFF02C Power exhaust, 208/230 volt for MPS-006B through -025B RXRX-CFF02D Power exhaust, 460 volt for MPS-006B through -025B RXRX-CFF02Y Power exhaust, 575 volt for MPS-006B through -025B 52.8...

  • Page 38: Fresh Air Damper Kit For 15-25 Ton [52.8-87.9 Kw] Units

    Fresh Air Damper Kit for 15–25 Ton [52.8–87.9 Kw] Units Motorized Damper Kit Figure 34: Damper Kit: MPS 015B – 025B Note: Outdoor air hood must also be ordered with this kit Outdoor Air Hood Figure 35: Outdoor Air Hood: MPS 015B – 025B Daikin IM 972-1...

  • Page 39: Roofcurbs

    • Sealing gasket (28" [711 mm]) provided with roofcurb. • 1" [25 mm] x 4" [102 mm] nailer provided. • 18 gauge galvanized steel. Figure 36: Typical Roofcurb Installation: MPS 015B – 020B UN IT DUCT FLANGE NOT TO EXCEED 1” [25 mm) Daikin IM 972-1...

  • Page 40: Controls And Operation

    Control checks the high-limit switch for normally closed After a fixed 45 seconds indoor blower delay on, the contacts, each pressure switch for normally open control energizes the indoor blower. contacts, and all flame rollout switches for continuity. Control energizes each low-fire inducer. Daikin IM 972-1...

  • Page 41: Operating Instructions

    If the LED is not lit, explosion or fire causing property damage, severe personal there is either no power to the control or there is an internal injury or death! component failure within the control, and the control should be replaced. Daikin IM 972-1...

  • Page 42: Burners

    The supply air high temperature limit cut-off is set at the factory and cannot be adjusted. It is calibrated to prevent the Replace control door. air temperature leaving the furnace from exceeding the maximum outlet air temperature. Daikin IM 972-1...

  • Page 43: Cooling Section Operation

    If a call for second stage cooling is initiated after a call Continuous Fan Mode for first stage cooling is established, the control energizes Y2 and energizes the second stage compressor. G input only indicates a zone thermostat call for continuous indoor blower operation. Daikin IM 972-1...

  • Page 44: Maintenance

    The manufacturer also recommends that a qualified installer, service agency or the gas supplier clean the flame sensor with steel wool at the beginning of the heating season. Daikin IM 972-1...

  • Page 45: Lubrication

    Cleaning Evaporator Coil The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum it with a soft brush attachment. Be careful not to bend the coil fins. Daikin IM 972-1...

  • Page 46: System Charge Charts

    PLACE (X) ON CHART WHERE SUCTION AND DISCHARGE INTERSECT. IF (X) IS BELOW OUTDOOR AMBIENT LINE, ADD CHARGE AND REPEAT STEPS 1-3. IF (X) IS ABOVE OUTDOOR AMBIENT LINE, RECOVER EXCESS CHARGE AND REPEAT STEPS 1-3. 15 TON, CIRCUIT 15 TON, CIRCUIT Daikin IM 972-1...
  • Page 47 IF (X) IS BELOW OUTDOOR AMBIENT LINE, ADD CHARGE AND REPEAT STEPS 1-3. IF (X) IS ABOVE OUTDOOR AMBIENT LINE, RECOVER EXCESS CHARGE AND REPEAT STEPS 1-3. SUCTION PRESSURE (PSIG) 20 TON, CIRCUIT SUCTION PRESSURE (PSIG) 20 TON, CIRCUIT Daikin IM 972-1...
  • Page 48 IF (X) IS BELOW OUTDOOR AMBIENT LINE, ADD CHARGE AND REPEAT STEPS 1-3. IF (X) IS ABOVE OUTDOOR AMBIENT LINE, RECOVER EXCESS CHARGE AND REPEAT STEPS 1-3. SUCTION PRESSURE (PSIG) 25 TON, CIRCUIT SUCTION PRESSURE (PSIG) 25 TON, CIRCUIT Daikin IM 972-1...

  • Page 49: Troubleshooting

    Defective compressor Replace Fluctuating head & vapor Air or non-condensate in system Recover refrigerant, evacuate & recharge Gurgle or pulsing noise at expansion Air or non-condensable in system Recover refrigerant, evacuate & recharge device or liquid line Daikin IM 972-1...

  • Page 50: Furnace Troubleshooting Guide

    REPLACE INTEGRATED CONTROL BOARD (IFC) • CHECK 24 VOLTS TO GAS VALVE IF WIRING IS OK • CHECK FOR GAS FLOW TO AND FROM VALVE • CHECK BURNER CARRYOVER REPLACE VALVE FLOW CHART CONTINUED ON NEXT PAGE Daikin IM 972-1...
  • Page 51 VALVE SHUTS OFF AND WIRING. IF OK, THEN REPLACE VALVE FLAME SHUTS OFF INDUCED DRAFT MOTOR STOPS AFTER 5 SECOND POSTPURGE INDOOR BLOWER MOTOR STOPS AFTER 90 SECONDS TROUBLESHOOTING ENDS REPEAT PROCEDURE UNTIL TROUBLE FREE OPERATION IS OBTAINED. Daikin IM 972-1...

  • Page 52: Replacement Parts

    Warranty Warranty Replacement Parts To find your local Daikin Certified Parts Distributor, go to www.DaikinApplied.com and select Parts Locator. Daikin IM 972-1...
  • Page 53 Warranty Daikin IM 972-1...
  • Page 54 Daikin 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.
  • Page 55         THIS PAGE WAS INTENTIONALLY LEFT BLANK ...
  • Page 56 Operation Manual OM 1077 DDC Rooftop Unit Controller Group: Applied Air Systems Part Number: OM 1077 Date: August 2010 Heating & Cooling, Gas/Electric & Electric/Electric Models MPS 003B – 025B 3 to 25 Tons [10.6 to 87.9 kW] R-410A Refrigerant ®...
  • Page 57 Contents Introduction ....... 3 User Interface ......15 General .

  • Page 58: Introduction

    IM 970 Maverick I, 6 to 12 ton Installation and Maintenance IM 971 The Maverick I 3 to 25 ton Package has a Rooftop Unit Maverick I, 15 to 25 ton Installation and Maintenance IM 972 Controller factory mounted and wired in their respective control panel.

  • Page 59: Programmable 24 Volt Thermostat

    The DDC Controller has two inputs to monitor optional Copeland Comfort Alerts. The inputs can provide the The DDC Controller in each Maverick I 3 to 25 ton Package following information: Locked rotor, Open Circuits, Missing Air Conditioner has many design features that optimize Phase, Reverse Phase, and Welded Contactor.
  • Page 60 Introduction Figure 1: Controller Component Locations Fan, CC1, CC2, Comfort Alert Common LCD Display 24 VAC LED 4 Keypad Common MOD1 MOD2 Item Description Item Description Connector to Integrated Furnace Control (IFC) – Electric heat connector provides power and communication between Indoor blower motor connector DDC Controller and IFC Compressor1 connector...

  • Page 61: Control Inputs And Outputs

    Control Inputs and Outputs Control Inputs and Outputs Control Inputs Control Inputs Table 1: Item Description Type Option ST - Space temperature Thermistor 10k? Field Installed (optional) RAT - Return Air Temperature Thermistor 10k? Factory Installed SAT - Supply Air Temperature Thermistor 10k? Factory Installed OAT - Outside Air Temperature...
  • Page 62 Control Inputs and Outputs The sensor is only applicable on units an invalid number, the control will default back to the (19) Smoke Detector. equipped with a smoke detector. The input will shutdown the occupied set point selection. unit and requires a manual reset. The sensor is used to detect This is a 24 volt input that is (10) G - Thermostat fan input.

  • Page 63: Control Outputs

    Control Inputs and Outputs Control Outputs Table 3: Control Outputs CC1 - Compressor output 1 24VAC 1.5A @ 24VAC, pilot duty CC2 - Compressor output 2 24VAC 1.5A @ 24VAC, pilot duty W1 - Heat output 24VAC 1.5A @ 24VAC, pilot duty W2 - Heat Output 24VAC 1.5A @ 24VAC, pilot duty...

  • Page 64: Unit Installation

    Unit Installation Unit Installation Important - The DDC Controller is shipped with the control Controls using DC Analog Input/Outputs (Standard Low Voltage Multi-conductor Wire) disabled so units do not accidentally energize during installation. The commissioning of the rooftop unit therefore Before installing any connecting wiring between the unit and requires the configuration of the Occupied Mode menu prior to components utilizing a DC analog input/output signal, refer to...
  • Page 65 Unit Installation • Y2 - Second Stage of compressor Standalone with Zone Sensor and Time Clock • B - Not Used If Occupied Mode is set to any of the options other than “Off” • W1 - First Stage Auxiliary heat (electric or gas) and “Control By Thermostat”, the control will operate in Stand •...
  • Page 66 Unit Installation Standalone with Building Automation System determine demand. The system can be set up with a zone sensor, 910108514 or 910108214 communication card, and If Occupied Mode is set to any of the options other than “Off” 2nd party building automation system that will be controlled and “Control By Thermostat”, the control will operate in Stand from a central location.

  • Page 67: Sequence Of Operation

    Sequence of Operation Sequence of Operation Figure 6: Integrated Furnace Control Status LED Important - The DDC Controller is shipped with the control disabled so units do not accidentally energize during installation. The commissioning of the rooftop unit therefore requires the configuration of the Occupied Mode menu prior to initial startup.
  • Page 68 Sequence of Operation Heat Blower On-Delay Post Purge The control waits for 45 second heat fan on delay and then When the DDC Controller demand for heat is satisfied, the energizes the indoor blower heat speed. If the blower is already IFC immediately de-energizes the gas valve(s).

  • Page 69: Electric Heat

    Sequence of Operation is open. The blower and inducers will remain energized as long remains without a call for heat. as the limit is open and there is a call for heat. The continuous fan operation continues to function while the If the call for heat goes away while the limit switch is open, control is in heat mode lockout.

  • Page 70: User Interface

    User Interface User Interface Keypad Figure 7: Keypad and Display The keypad consists of Up, Down, Left, Right arrow keys, and an Enter key. The Right and Left keys allow the user to select among the different groups of menus. The Up and Down keys Display allow the user to scroll vertically through sub-menus within the menu group.

  • Page 71: General Information Screen

    User Interface Figure 8: Menu Structure History Effect Active INITIAL TEST SEQ General Temperature Set points Economizer Furnace Ctrl. Time Delays Unit Status of Alarms Alarms Pwd Required Occupancy Info Occupied Active Software ENTER PASSWORD Occ Cool/Heat Free Cooling Device ID Demand Delay Alarm # 1 Mode...

  • Page 72: Unit Status Screen

    User Interface Unit Status Screen Table 8: Effective Occupancy Screen Item Range The status screen shows basic information about the operation of the unit, such as mode of operation, inputs, outputs, and Effective Occupancy Occupied / Unoccupied / TntOverr XXX min capacity of cooling or heating.

  • Page 73: Temperature Screen

    User Interface Ind Fan Occupcy Item Range The Ind Fan Occupcy is the option that decides the indoor fan Hi Balance Point 0 to 120°F, default 40°F XXX °F function. It includes the following options. Lo Balance Point 0 to 120°F, default 35°F •...

  • Page 74: Economizer

    User Interface Min DAT Spt If mechanical cooling is active and the enthalpy is favorable for ELM operation, the DDC Controller will override the The Minimum DAT set point is used to create warnings in the Economizer opening the damper 100%. ELM will regain system.
  • Page 75 User Interface Economizer Status codes, ASHRAE standards, or standard practice. It is usually expressed in terms of volumetric flow-rate (cfm) per occupant This screen gives the status of the exhaust fan. or per unit floor area. The use of a CO2 sensor can lower the ventilation limit by verifying that the indoor air quality is Enthalpy Setpoint suitable for human occupancy, as described in the next section...

  • Page 76: Integrated Furnace Control Screen

    User Interface Effective Minimum Position Demand Delay This displays current value of the effective minimum damper The demand delay is the time period in which the control position. compares set point to zone temperature readings and determines whether the current stage of either cooling or Local Minimum Position heating is sufficient to satisfy the set point.

  • Page 77: Initial Test Sequence

    User Interface Clogged Filter Switch selected, the first stage of cooling is now energized for 5 minutes to check for alarms. At the end of the test, the The clogged filter switch bypass timer is an adjustable time temperature sensor readings are displayed. If the technician that can only be activated if the indoor fan is energized.

  • Page 78: Alarm List

    Alarm List Alarm List Table 13: Alarm and Diagnostic List Alarm Designation Origin Description Status/Troubleshooting Information No Active Alarm • Low line voltage Comfort Alert Code 4. Locked Rotor Circuit 1 Circuit 1 shutdown and retry after Anti-Short Cycle • Excessive Refrigerant in compressor Delay (ASCD).
  • Page 79 Alarm List Alarm Designation Origin Description Status/Troubleshooting Information • Burner Over Fired • Low Air Flow • Dirty Filter MAIN LIMIT OPEN IFC Energizes inducer and main blower • Poor Duct Design • Blocked Duct, Supply and/or Return • Incorrect Blower Speed Selection Clogged Filter Warning- DDC Controller Displays warning.
  • Page 80 Alarm List Alarm Designation Origin Description Status/Troubleshooting Information • Blocked Vent • Undersized Vent • Water in Pressure Switch Tubing • Cracked Pressure Switch Tubing • Inducer Not Running or Not Running to Full PRESSURE SWITCH 1 Energize inducer indefinitely until pressure switch Speed OPEN closes or call for heat goes away.
  • Page 81 Alarm List Alarm Designation Origin Description Status/Troubleshooting Information • Replace the sensor ELM - OAE Sensor Fail Sensor short, failure • Check sensor is installed correctly on control • ELM - RAE Sensor Fail Sensor short, failure • Replace the sensor •...
  • Page 82 Alarm List Alarm Designation Origin Description Status/Troubleshooting Information • If not due to a fire Smoke Detection DDC Controller reads the smoke detection input as • Replace the sensor (Selectable Fault Controller open -- complete shutdown. Response) • Check sensor is installed correctly on control If the low pressure switch trips 3 times within 120 minutes of operation during the same call for heating Low Pressure –...

  • Page 83: Quick Start - Units With Thermostat Control

    QUICK START - Units with Thermostat Control QUICK START - Units with Thermostat Control Connect Room Thermostat (and Time Clock if used) to DDC Apply power to Rooftop Unit. Controller rooftop unit controller circuit board. Follow Unit Using Keypad and Display on DDC Controller circuit board, Installation Instructions obeying all safety guidelines.

  • Page 84: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams Figure 11: MPS003B-MPS005B, 208-230/460V, 3-Phase, Gas Heat McQuay OM 1077...
  • Page 85 Wiring Diagrams Figure 12: MPS003B-MPS005B, 575V, 3-Phase, Gas Heat McQuay OM 1077...
  • Page 86 Wiring Diagrams Figure 13: MPS006B-MPS007B, 208-230/460V, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 87 Wiring Diagrams Figure 14: MPS006B-MPS007B, 575V, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 88 Wiring Diagrams Figure 15: MPS008B-MPS012B, 208-230/460V, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 89 Wiring Diagrams Figure 16: MPS008B-MPS012B, 575, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 90 Wiring Diagrams Figure 17: MPS015B-MPS025B, 208-230/460V, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 91 Wiring Diagrams Figure 18: MPS015B-MPS025B, 575V, 3-Phase, Gas Heat Controller McQuay OM 1077...
  • Page 92 Wiring Diagrams Figure 19: MPS003B-MPS005B, 208-230/460V, 3-Phase, Cooling Only McQuay OM 1077...
  • Page 93 Wiring Diagrams Figure 20: MPS006B-MPS007B, 208-230/460/575V, 3-Phase, Cooling Only Controller McQuay OM 1077...
  • Page 94 Wiring Diagrams Figure 21: MPS008B-MPS012B, 208-230/460/575V, 3-Phase, Cooling Only Controller McQuay OM 1077...
  • Page 95 Wiring Diagrams Figure 22: MPS015B-MPS025B, 208-230/460/575V, 3-Phase, Cooling Only Controller McQuay OM 1077...

  • Page 96: Data

    Data Data Table 14: Sensor Temperature vs. Resistance TEMP TEMP TEMP TEMP °F (OHMS) °F (OHMS) °F (OHMS) °F (OHMS) 81,662 77.0 10,000 150.8 2,011 224.6 77,162 78.8 9,571 152.6 1,943 226.4 72,940 80.6 9,164 154.4 1,876 228.2 68,957 82.4 8,776 156.2 1,813...
  • Page 97 McQuay Training and Development Now that you have made an investment in modern, efficient McQuay equipment, its care should be a high priority. For training information on all McQuay HVAC products, please visit us at www.mcquay.com and click on training, or call 540-248-9646 and ask for the Training Department.

This manual is also suitable for:

Maverick mps015bMaverick mps025b

Table of Contents