Greenheck APEX-200 Installation, Operation & Maintenance Manual
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Greenheck APEX-200 Installation, Operation & Maintenance Manual

Greenheck APEX-200 Installation, Operation & Maintenance Manual

Energy recovery ventilator
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INSTALLATION, OPERATION, & MAINTENANCE MANUAL
Energy recovery wheels certified by the ARI Air-to-Air
Energy Recovery Ventilation Equipment Certification
Program in accordance with ARI Standard 1060.
Actual performance in packaged equipment may vary.
Certified Ratings are available in the Certified Product
Directory at http://www.ari.org/directories/erv
The APEX is thoroughly inspected and test run at the factory. However, damage may occur during shipping and
handling. Upon delivery, inspect the unit for both obvious and hidden damage. If damage is found, record all
necessary information on the bill of lading and file a claim with the final carrier. In addition, ensure all accessory
items are present. Some accessory items are stored inside the unit during shipping.
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
Read this installation, operation, and maintenance manual thoroughly before installing or servicing this equipment.
Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year
from the purchase date. The energy recovery wheel is warranted to be free from defects in material and
workmanship for a period of five years from the purchase date. Any units or parts which prove defective during the
warranty period will be replaced at our option when returned to our factory, transportation prepaid.
Motors are warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck
prove defective during this period, they should be returned to the nearest authorized motor service station.
Greenheck will not be responsible for any removal or installation costs.
INSTALLATION SUPPLEMENT
Refer to the following installation supplement for APEX
units supplied with a Temperature Control Package:
Temperature Control Package, Part #461468
Refer to the following installation supplement for APEX
units supplied with a Greenheck roof curb, Model GKD:
APEX Roof Curb IOM, Part #462831
READ AND SAVE THESE INSTRUCTIONS

RECEIVING AND HANDLING

SAFETY WARNING

WARRANTY
Energy Recovery Ventilator
Model:
SAVE THIS MANUAL
This manual is the property of the
owner, and is required for future
maintenance. This manual should
remain with each APEX unit when
the job is complete.
PART #462255
APEX-200

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Summary of Contents for Greenheck APEX-200

  • Page 1: Receiving And Handling

    READ AND SAVE THESE INSTRUCTIONS PART #462255 Energy Recovery Ventilator ® Model: APEX-200 INSTALLATION, OPERATION, & MAINTENANCE MANUAL Energy recovery wheels certified by the ARI Air-to-Air Energy Recovery Ventilation Equipment Certification Program in accordance with ARI Standard 1060. Actual performance in packaged equipment may vary. Certified Ratings are available in the Certified Product Directory at http://www.ari.org/directories/erv RECEIVING AND HANDLING...

  • Page 2: Table Of Contents

    Table of Contents Storage ......2 Fan information ....15 General .

  • Page 3: General

    Basic Unit Operation The APEX brings in Energy Recovery Wheels Exhaust Air fresh, outdoor air and discharged outside removes stale, exhaust air. Prior to discharging Top View the exhaust air, the energy recovery wheel Fresh transfers energy from Outdoor Air the exhaust air to the outdoor air at an efficiency of 70-80%.

  • Page 4: Unit Weights

    Installation Unit Weights (dry weights) Unit Approx. Weight (lbs) APEX-200 (without coils) 9,000 APEX-200 (with HW & CW coils) 12,000 Recommended Roof Openings Model APEX-200 68.75 Exhaust Outdoor All dimensions shown are in inches. Intake Discharge Curb Outside Dimensions Model 2.50 From Inside Curb APEX-200...

  • Page 5: Rail Mounting

    Installation Rail Mounting Rail Layout • Rails designed to handle the weight of the APEX should be positioned as shown on the diagrams below (rails by others). • Make sure that rail positioning does not interfere with the supply air discharge opening or the exhaust air intake opening on the APEX unit (see FIGURE 6).

  • Page 6: Electrical Connections

    Installation Electrical Connections SAFETY DANGER! The electrical supply must be compatible with that shown on Electric shock hazard. Can cause injury or the nameplate: voltage, phase, and amperage capacity. death. All wiring should be performed by a Connect power to the unit per the unit specific wiring diagram qualified electrician.

  • Page 7: Service Clearances

    Installation Service Clearances / Access Locations APEX-200 units require minimum clearances for access on all sides for routine maintenance. Filter replacement, drain pan inspection and cleaning, energy wheel cassette inspection, fan bearing lubrication and belt adjustment, are examples of routine maintenance that must be performed. Blower and motor assemblies, energy recovery wheel cassettes, coil and filter sections are always provided with a service door or panel for proper component access.

  • Page 8: Coil Application Recommendations

    Installation Coil Application Recommendations Factory installed cooling and heating components are mounted in the coil section of the unit. The coil section is downstream of the energy wheel on the supply air side of the unit. See FIGURE 10 for coil connection location. Coil connections Water coil are located external to the unit as shown.

  • Page 9: Drain Pan Trap Piping

    Installation Drain Pan Traps Drain lines and traps should be run full size or larger from the drain pan connection (drain pan connection is 1.25-inch diameter female thread). Drain pans should have drain lines 6 in. min. and traps to permit the condensate from the coils to drain freely.

  • Page 10: Frost Control Application/Operation

    Installation Frost Control Application/Operation Extremely cold outdoor air temperatures can cause moisture condensation and frosting on the energy recovery wheel. Frost control is an optional feature that will prevent/control wheel frosting. Three options are available: 1) Timed Exhaust frost control Indoor RH @ 70°F Frost Threshold Temp 2) Electric preheat frost control...

  • Page 11: Economizer Application/Operation

    Installation Economizer Application/Operation The energy recovery wheel operation can be altered to take advantage of economizer operation (free cooling). Two modes are available: 1) De-energizing the wheel or 2) Modulating the wheel. De-energizing the wheel is accomplished with a signal from a Temperature or Enthalpy sensor mounted in the supply air inlet compartment (see FIGURE 15).

  • Page 12: Optional Accessories

    Optional Accessories Rotation Sensor The rotation sensor monitors energy recovery wheel rotation. If the wheel should stop rotating, the sensor will close a set of contacts in the unit control center. Field wiring of a light (or other alarm) to these contacts will notify maintenance personnel when a failure has occurred.
  • Page 13 Optional Accessories Remote Control Panel The remote panel is a series of junction boxes ganged together and includes a stainless steel face plate. The remote panel is available with a number of different alarm lights and switches to control the unit. The remote panel ships loose and requires mounting and wiring in the field.

  • Page 14: Start-Up Checks

    Unit Start-Up SAFETY CAUTION! SAFETY DANGER! Use caution when removing access panels or other Electric shock hazard. Can cause injury or death. unit components, especially while standing on a Before attempting to perform any service or ladder or other potentially unsteady base. Access maintenance, turn the electrical power to unit to OFF panels and unit components can be heavy and at disconnect switch(es).

  • Page 15: Fan Information

    Unit Start-Up Supply Fan (Plenum Type) The APEX-200 contains one plenum supply fan located on the end of the unit opposite the outdoor air intake (see beginning of Unit Start-Up section for diagram of unit layout). Efficient fan performance can be maintained by having the correct radial gap and overlap.

  • Page 16: Fan Belt Drives

    Unit Start-Up Fan Belt Drives The fan belt drive components, when supplied by Greenheck Fan Corporation, have been carefully selected for the unit's specific operating condition. Caution: utilizing different components than those supplied could result in unsafe operating conditions which may cause personal injury or failure of the following components: 1) Fan Shaft, 2) Fan Wheel, 3) Bearings, 4) Belt, 5) Motor.

  • Page 17: Vibration

    Unit Start-Up Vibration Excessive vibration maybe experienced during initial start-up. Left unchecked, excessive vibration can cause a multitude of problems, including structural and/or component failure. The most common sources of vibration are listed below. 1. Wheel Unbalance Many of these conditions can be discovered by careful observation. Refer to 2.

  • Page 18: Routine Maintenance

    Routine Maintenance SAFETY CAUTION! SAFETY DANGER! Use caution when removing access panels or other Electric shock hazard. Can cause injury or death. unit components, especially while standing on a Before attempting to perform any service or ladder or other potentially unsteady base. Access maintenance, turn the electrical power to unit to OFF panels and unit components can be heavy and at disconnect switch(es).

  • Page 19: Motors

    Routine Maintenance Motors Motor maintenance is generally limited to cleaning and lubrication. Cleaning should be limited to exterior surfaces only. Removing dust and grease buildup on the motor housing assists proper motor cooling. Never wash- down motor with high pressure spray. Greasing of motors is only intended when fittings are provided.

  • Page 20: Filters / Door Seals

    Routine Maintenance External Filter Maintenance FIGURE 23: Aluminum mesh, 2-inch deep filters are located in the Outdoor air supply weatherhood (if the weatherhood option was intake hood purchased). Filters should be checked and cleaned on mesh filter a regular basis for best efficiency. The frequency of access.

  • Page 21: Coil Maintenance

    Routine Maintenance Coil Maintenance Filters upstream of the coil should be checked regularly. If the filters are dirty, they should be cleaned or replaced. It is important that the coils stay clean to maintain desired airflow (refer to Filters in this section). 1.

  • Page 22: Energy Recovery Wheel Maintenance

    Routine Maintenance Energy Recovery Wheel Maintenance Annual inspection of the energy recovery wheel is recommended. Units ventilating smoking lounges and other non-clean air spaces should have energy recovery wheel inspections more often based upon need. Inspections for smoke ventilation applications are recommended bimonthly to quarterly until a regular schedule can be established.

  • Page 23: Cleaning Wheel Segments

    Routine Maintenance CLEANING ENERGY RECOVERY WHEEL SEGMENTS If the wheel appears excessively dirty, it should be cleaned to ensure maximum operating efficiency. Only excessive buildup of foreign material needs to be removed. DISCOLORATION AND STAINING OF ENERGY RECOVERY WHEEL DOES NOT AFFECT ITS PERFORMANCE. Thoroughly spray wheel matrix with household cleaner such as Fantastic ™...

  • Page 24: Parts List

    Parts List Model APEX (shown with optional chilled water and hot water coils) 1. Supply blower 7. Exhaust weatherhood with birdscreen and integral - Plenum fan backdraft damper (2 per unit) - Adjustable motor mount for belt tensioning - Adjustable sheaves for speed control 8.

  • Page 25: Sequence Of Operation

    Sequence of Operation Basic Unit The APEX unit is pre-wired such that when a call for outside air is made (via field supplied 24 VAC control signal wired to unit control center), the supply fan, exhaust fan and energy wheel are energized and the motorized dampers open.

  • Page 26: Airflow Troubleshooting

    Troubleshooting Airflow Test and Balance Report The test and balance report (TAB) is utilized to determine whether the appropriate amount of outdoor air and exhaust air is being supplied and removed from a building, respectively. There are no set rules on what information must be included in a TAB report.

  • Page 27: General Troubleshooting

    Troubleshooting Symptom Possible Cause Corrective Action Blown fuse or open circuit Replace fuse or reset circuit breaker and check amps. breaker. Defective motor or capacitor. Replace. Blower Fails to Operate Motor starter overloaded. Reset starter and check amps. Electrical. Check for On/Off switches. Check for correct supply voltage. Drive.
  • Page 28 As a result of our commitment to continuous improvement, Greenheck reserves the right to change specificaions without notice. GREENHECK #462255 APEX IOM FS P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410 PH. 715-359-6171 Rev. 1 March 2004 www.greenheck.com Copyright © 2004 Greenheck Fan Corp.

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