Daikin Rebel DPS003 Installation And Maintenance Manual
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Daikin Rebel DPS003 Installation And Maintenance Manual

Commercial packaged rooftop systems
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DOT-ITB-21-8041-AC
Installation and Maintenance Manual
™
Rebel
Commercial Packaged
Rooftop Systems
Heating and Cooling
Models DPS003 – 015A
R-410A Refrigerant
MicroTech
®
III Unit Controller
Energy Recovery Wheel
3–6 tons
ATTACHMENT "B"
FPID: 437300-3-7B-01
IM 1125-6
Group: Applied Air Systems
Part Number: IM 1125
Date: September 2014
7–15 tons
with Energy Recovery

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  • Page 1 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 ATTACHMENT "B" Installation and Maintenance Manual IM 1125-6 Group: Applied Air Systems Part Number: IM 1125 Date: September 2014 ™ Rebel Commercial Packaged Rooftop Systems Heating and Cooling Models DPS003 – 015A R-410A Refrigerant MicroTech ® III Unit Controller Energy Recovery Wheel 3–6 tons 7–15 tons...

  • Page 2: Table Of Contents

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 able of onTenTs able of onTenTs Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit Options .

  • Page 3: Introduction

    This manual provides general information about the “A” The unit nameplate is located on the outside of the main vintage Daikin Rebel Commercial Packaged Rooftop Unit, control box door. It includes the unit model number, serial model DPS. In addition to an overall description of the unit, number, electrical characteristics, and refrigerant charge.

  • Page 4: Mechanical Installation

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon eChanICal nsTallaTIon Installer Responsibilities Service Clearance The installation of this equipment shall be in accordance with Allow service clearances as approximately indicated in Figure the regulations of authorities having jurisdiction and all 1. Also, McQuay recommends providing a roof walkway to the applicable codes.

  • Page 5: Overhead Clearance

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Unit(s) Surrounded by Solid Walls: WARNING 1 . If there are walls on one or two adjacent sides of the unit, Mold can cause personal injury . Some materials such the walls may be any height. If there are walls on more as gypsum wall board can promote mold growth when than two adjacent sides of the unit, the walls should not damp.
  • Page 6 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Figure 2: Roof Curb Assembly (DPS 003—006) LEFT SIDE BACK SIDE 28.69 INSIDE 9.84 INSIDE 28.76 INSIDE 9.64 INSIDE 44.24 61.50 RIGHT SIDE FRONT SIDE NOTE: 1. Check submittal drawing for gas/water/electrical/supply/return air opening DPS 003–006 Roofcurb with ERW Certifi ed Drawing NOTE: Horizontal above the roof gas connection only McQuay International certifi es that its equipment will conform to this drawing and McQuay’s Model: DPS...
  • Page 7 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Figure 3: Roof Curb Assembly (DPS 007–015) BACK SIDE LEFT SIDE SUPPLY RETURN RIGHT SIDE FRONT SIDE DPS 007–012 Roofcurb with ERW Certifi ed Drawing McQuay International certifi es that its equipment will conform to this drawing and McQuay’s Model: DPS published specifi cations, subject to its published warranty.

  • Page 8: Rigging And Handling

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Figure 4: Rigging Label Rigging and Handling LIFT ONLY AS SHOWN WARNING USE SPREADER BAR Only trained and qualified personnel should be allowed to rig loads or operate load rated cranes and/or hoist assemblies. Do not use a forklift to lift or maneuver the unit.

  • Page 9: Damper Assemblies

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Table 4: Energy Wheel Weight Additions Damper Assemblies 30% OA Econo 100% OA The optional damper assemblies described in this section are ordered with factory-installed actuators and linkages. Small Cabinet The following sections describe the operation and linkage Large adjustment of the factory option.
  • Page 10 Installing Ductwork 4 . Locate the duct tap in a nonturbulent flow area of the On vertical-supply/vertical-return units, if a Daikin roof curb duct. Keep it several duct diameters away from take-off is not used, the installing contractor should make an airtight...
  • Page 11 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 eChanICal nsTallaTIon Figure 8: Duct Static Pressure Sensing Tubing 3 . Locate the building tap so it is not influenced by any source of moving air (velocity pressure). These sources Installation may include air diffusers or outside doors. Main Control Panel Condenser Section 4 .

  • Page 12: Electrical Installation

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 leCTrICal nsTallaTIon leCTrICal nsTallaTIon The component will still operate initially, but will have a much Pre-Construction shorter life span due to overheating of the conductor. The Rebel unit comes equipped with a Microtech III controller In order to prevent ESD from the technician to the unit they must and can be used for sites that are still under construction.
  • Page 13 A ground lug is provided in the control panel. Size the grounding performed by Daikin trained technicians who are familiar with conductor in accordance with Table 250-95 of the National working on live equipment. A representative of the owner or the Electrical Code.
  • Page 14 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 leCTrICal nsTallaTIon Table 8: Electric Heat Data Voltage Amps Voltage Amps 16 .7 99 .9 15 .1 90 .4 7 .3 43 .8 6 .0 36 .1 33 .3 149 .9 30 .1 135 .6 14 .6 65 .6 12 .0 54 .2...

  • Page 15: Refrigeration System

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM efrIgeraTIon ysTeM Piping System with a single or tandem compressor. All units use an electronic The Rebel piping system varies significantly between the multiple possible configurations; heat pump, cooling only, and expansion valve (EVI) and a start-up by pass solenoid valve modulating hot gas reheat.
  • Page 16 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM Figure 11: Refrigeration Circuit for Large Cabinet Heat Pump (DPH) unit with Modulating Hot Gas Reheat Item Description Indoor coil electronic expansion valve Outdoor coil electronic expansion valve Check Valve Refrigerant Receiver Indoor fan Outdoor fan COMP1 Inverter compressor Fixed speed compressor...
  • Page 17 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM Component Description Variable Speed Compressor Receiver A variable speed compressor (COMP1) is used on all Rebel Only Rebel Heat Pump units will have a receiver. Different Units, DPS. On small cabinet units (3–6 Tons) the variable volumes of refrigerant are required inside the system during speed compressor will be the only one present.
  • Page 18 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM Oil Separator Check Valve All Rebel, DPS(H), units will have an oil separator on the All Rebel Units will have check valves on each of the discharge line of the compressor. This device will remove compressor discharge lines.
  • Page 19 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM High Pressure Switch Four-Way Valve All Rebel Units will have a high pressure switch on each The Four Way Valve (4WV) also known as a Reversing Valve compressor. Large cabinet units (7–15 Tons) will have an HP1 is a component only used on Heat Pumps.
  • Page 20 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM By-Pass Solenoid Valve Indoor Expansion Valve The By-Pass Solenoid Valve (SVB) is used to “short-circuit” The Indoor Expansion Valve (EVI) is a 12 VDC stepper motor the high pressure compressor discharge to the low pressure driven valve, used in heating and cooling mode.
  • Page 21 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM Suction Pressure Transducer Outdoor Refrigerant Temperature The Suction Pressure Transducer (PTS) is a refrigerant Only Rebel Heat Pumps units will have an Outdoor Refrigerant pressure sensor that screws onto a Schrader fitting on the Temperature Sensor (ORT). This sensor is used in Cooling Mode when ClgEVOmethod is set to control subcooling.
  • Page 22 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 efrIgeraTIon ysTeM Heating Defrost The unit’s heating mode of operation is determined by the Defrost is a temporary and infrequent period during normal control temperature and the heating setpoint temperature. The heating operations on Rebel heat pumps. The purpose of unit enters the heating mode of operation by comparing the defrost is to remove frost that has built up on the outdoor coil control temperature to the heating setpoint.

  • Page 23: Optional Modulating Hot Gas Reheat

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal odulaTIng eheaT pTIonal odulaTIng eheaT Modulating Hot Gas Reheat gas from the unit condenser will be routed to an indoor coil The reheat coil option comes complete with an aluminum micro channel coil and modulating hot gas valves for leaving downstream of the DX coil to reheat the air.
  • Page 24 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal odulaTIng eheaT Figure 26: Ideal for Neutral Air Ventilation Control • The rooftop mainly dehumidifies the required ventilation air • Terminal units provide additional sensible cooling as required Dehumidification Termination Dehumidification Initiation Dehumidification is terminated if the selected variable, Relative An analog sensor is mounted in the return duct, the space, or Humidity or Dew Point, drops below the appropriate humidity outdoors to sense Relative Humidity.
  • Page 25 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal odulaTIng eheaT Control & Arrangement In conjunction with dehumidification, MHGRH is used to raise • In the reheat mode, the minimum position for the reheat the temperature of the cooled air to a desirable value. MHGRH valves is 1% (1.0 Vdc).
  • Page 26 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal odulaTIng eheaT Figure 27: Modulating Hot Gas Reheat Schematic www.DaikinApplied.com IM 1125-6 • REBEL ROOFTOPS...

  • Page 27: Optional Electric Heat

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal leCTrIC pTIonal leCTrIC Electric Heater Design If the 10th digit in the model number is an “E”, the rooftop The high limit switch is an automatic reset switch. It opens the unit was furnished with a factory installed electric furnace control circuit and shuts the heater down when the temperature (Example, DPS010AHCE).

  • Page 28: Optional Gas Heat

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal pTIonal Figure 28: Gas Heat Section Gas Furnace Design If the 10th digit in the model number is a “G”, the rooftop unit was furnished with a factory installed furnace (Example, DPS010AHCG). The Rebel commercial rooftop units are available with either the low, medium and high heat input furnace (see capacities in 13).

  • Page 29: Installation

    Electrical and will void all warranty coverage by the manufacturer. The Daikin burner receives its electrical power from the main unit Questions regarding specific contaminants should be referred control panel. No additional power wiring must be routed to the to your local gas utility.
  • Page 30 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal a match or flame to locate leaks. DANGER If you do not follow these instructions exactly, a fire or DANGER explosion may result causing property damage, personal The spark ignitor and ignition control are high voltage. Keep injury, or loss of life .
  • Page 31 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal Table 14: Capacity of Pipe Natural Gas (CFH) With Pressure Drop of 0 .3" Wc & Specific Gravity Of 0.60 Pipe Size-inches (Ips) Pipe Length (ft .) ½ ¾ 1¼ 1½ 2½ 1050 1600 2050 4800 8500 17500 1100...

  • Page 32: Sequence Of Operation (Staged Control)

    Conversion to LP gas requires a special kit 11 . Gas valve receives a command for stage 2 of heat. supplies by Daikin Parts. Failure to use the proper conversion kit can cause fire, carbon monoxide poisoning, explosion, personal injury, property damage, Sequence of Operation (Modulating Burner) or death.

  • Page 33: Start-Up Procedures

    . performed by Daikin trained technicians who are familiar with A . This appliance does not have a pilot. It is equipped working on live equipment. A representative of the owner or the...

  • Page 34: Service

    DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal 6 . Wait five (5) minutes to clear out any gas. Then, smell Maintenance for gas, including near the floor. If you smell gas, STOP! Planned maintenance is the best way to avoid unnecessary Follow step “B” in the DANGER label on this page. If you expense and inconvenience.
  • Page 35 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal Ignition Control Module for Gas Furnace Figure 35: Typical Staged Gas Furnace Electrical Schematic with Sensor Ignition Control Module LED Diagnostics The following LED indicators can be used to diagnose faults associated with the staged gas furnace. Table 19: LED Indicator and Fault Conditions Indicator Fault Condition...
  • Page 36 DOT-ITB-21-8041-AC FPID: 437300-3-7B-01 pTIonal Ignition Control Module for Modulating Gas Furnace Figure 37: Typical Modulating Gas Furnace Electrical Schematic with Sensor www.DaikinApplied.com IM 1125-6 • REBEL ROOFTOPS...
  • Page 37 FPID: 437300-3-7B-01 pTIonal Variable Furnace Controller Modulating Furnace Diagnostics Daikin’s furnace controller is an electronic device that delivers The Rebel furnace control that operates the furnace has full control of the modulating furnace. Control includes built-in, self-diagnostic capability. The control continuously sequencing, ignition, safety, modulation of the control valve, monitors its own operation and the operation of the system.

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