Greenheck IG Installation, Operation And Maintanance Manual
Greenheck IG Installation, Operation And Maintanance Manual

Greenheck IG Installation, Operation And Maintanance Manual

Make-up air unit

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®
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with instructions could result in personal injury and/or property damage!
General Safety Information
Only qualified personnel should install this unit.
Personnel should have a clear understanding of these
instructions and should be aware of general safety
precautions. Improper installation can result in electric
shock, possible injury due to coming in contact with
moving parts, as well as other potential hazards. Other
considerations may be required if high winds or seismic
activity are present. If more information is needed,
contact a licensed professional engineer before moving
forward.
1. Follow all local electrical and safety codes, as well as
the National Electrical Code (NEC), the National Fire
Protection Agency (NFPA), where applicable. Follow
the Canadian Electrical Code (CEC) in Canada.
2. The rotation of the wheel is critical. It must be free
to rotate without striking or rubbing any stationary
objects.
3. Motor must be securely and adequately grounded.
4. Do not spin fan wheel faster than the maximum
cataloged fan rpm. Adjustments to fan speed
significantly affects motor load. If the fan RPM is
changed, the motor current should be checked to
make sure it is not exceeding the motor nameplate
amps.
5. Do not allow the power cable to kink or come in
contact with oil, grease, hot surfaces, or chemicals.
Replace cord immediately if damaged.
6. Verify that the power source is compatible with the
equipment.
7. Never open blower access doors while the fan is
running.
®
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death or
property damage.
Be sure to read and understand the
installation,operation and service instructions
in this manual.
Improper installation, adjustment alteration,
service or maintenance can cause serious
injury, death or property damages.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier
from a phone remote from the building.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
Document 481153
Model IG/IGX
Make-Up Air Unit
Model IG / IGX Make-Up Air
1

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Summary of Contents for Greenheck IG

  • Page 1 6. Verify that the power source is compatible with the — Installation and service must be equipment. performed by a qualified installer, service 7. Never open blower access doors while the fan is agency or the gas supplier. running. Model IG / IGX Make-Up Air ®...
  • Page 2 Leave coverings loose to permit air circulation and to allow for 3. Purge grease before putting fan into service. periodic inspection. Model IG / IGX Make-Up Air ®...
  • Page 3: Table Of Contents

    Vent Connections ......30 furnace controller and one 2-stage furnace Model IG – Single or 2 Stage ....31 4:1 - uses two 4:1 modulating furnaces 8:1 Staged .
  • Page 4: Indoor Unit

    Use a crane and NOTE a set of spreader bars hooked to the Vent piping is supplied by others and not supplied by Setting Unit manufacturer. Model IG / IGX Make-Up Air ®...
  • Page 5: Roof Mounted Unit - Arrangement Dbc

    Roof Curb Metal Cover Equipment Support Roof Curb and Equipment Support NOTE Refer to Outdoor Venting instructions when locating the unit. Model IG / IGX Make-Up Air ®...
  • Page 6 9. Seal Weatherhood Seam grease trap with drain connection. Using an appropriate sealant, seal the seam between NOTE the weatherhood and the unit. NFPA 96 requires that the exhaust fan be hinged. Complete Combination Installation Model IG / IGX Make-Up Air ®...
  • Page 7: Optional Evaporative Cooling Module

    When mounting the evaporative cooler, it is important pull in, resulting in contactor failures and/or motor that the evaporative cooler is level to ensure proper operation and water drainage. failures. Model IG / IGX Make-Up Air ®...
  • Page 8 Wiring to the Selectra Stat or room override should be in separate conduit or run with shielded cable. NOTE The Industrial Remote Panels use point-to-point wiring to connect to the unit's main control center. Model IG / IGX Make-Up Air ®...
  • Page 9: Optional Evaporative Cooler Piping

    Check the water level in the sump tank. The water (19.05 mm) Drain level should be above the pump intake and below the Part numbers subject to change. overflow. Adjust the float as needed to achieve the proper water level. Model IG / IGX Make-Up Air ®...
  • Page 10: Optional Direct Expansion (Dx) Coil Piping

    The nozzle is generally held in place Retainer by a retaining ring or is Nozzle Distributor Ring an integral part of Nozzle Placement the distributor itself. Model IG / IGX Make-Up Air ®...
  • Page 11 Suction Connection unit and allow the water General Installation to drain while the unit is operating. IMPORTANT All traps must be installed below the roof line or be otherwise protected from freezing. Model IG / IGX Make-Up Air ®...
  • Page 12: Optional Chilled Water Coil Piping

    Trap and allow the water to drain while the unit is operating. IMPORTANT All traps must be installed below the roof line or be otherwise protected from freezing. Model IG / IGX Make-Up Air ®...
  • Page 13: Optional Dirty Filter Switch

    Open the blower access door and run the blower momentarily to determine the rotation. Arrows are placed on the blower scroll to indicate the proper Blower Housing direction or reference the example shown. Blower Rotation Model IG / IGX Make-Up Air ®...
  • Page 14 5. Air Volume Measurement & Check Measure the unit’s air volume (cfm) and compare it with its rated air volume. If the measured air volume is off, adjust the fan’s RPM by changing/adjusting the drives. Model IG / IGX Make-Up Air ®...
  • Page 15: Optional Economizer

    The control will modulate the damper to maintain NOTE temperature as best as it can (Set point menu, Only models IG-HV and IGX-HV with options EC-1, 2, Default 53°F) 3 or 4 use an economizer. 2. LOW T LOCK - The set point for the low temperature NOTE mechanical cooling lockout.
  • Page 16 (enter) twice to run the test. 6. Voltage between terminal ACT 2-10 and ACT COM should be 2 VDC. This will close the outdoor air damper and open the return air damper. Model IG / IGX Make-Up Air ®...
  • Page 17: Optional Evaporative Cooling

    6. Adjust the Water Bleed-Off Rate The water bleed-off rate is dependent on the water’s mineral content. The bleed-off should be adjusted based on the media’s mineral deposits after two weeks of service. Evaporative Cooler Set-Up Model IG / IGX Make-Up Air ®...
  • Page 18: Operation Optional Vav Units

    Check Operation section. If the make- up air unit has been supplied with the microprocessor controller, additional information can be found by referencing the Microprocessor Controller Installation, Operation and Maintenance Manual. Model IG / IGX Make-Up Air ®...
  • Page 19: Optional Recirculating Units

    Check Operation section. If the make- up air unit has been supplied with the microprocessor controller, additional information can be found by referencing the Microprocessor Controller Installation, Operation and Maintenance Manual. Model IG / IGX Make-Up Air ®...
  • Page 20: Sequence Of Operation

    (RF) is activated • Power passes to and energizes starter relay (ST1) • N.O. contact on supply fan starter (ST1) is energized and closed • Supply fan (M1) starts Model IG / IGX Make-Up Air ®...
  • Page 21: Troubleshooting Blower

    One or more legs of 3 phase is out (Restore missing legs) At this time the supply contactor (ST1) should pull in, passing power to the supply motor and the blower should start. Model IG / IGX Make-Up Air ®...
  • Page 22: Motor Over Amps

    (Reference Blower Start-Up Step #2) Motor voltage correct? Provide proper power supply. (Reference Blower Start-Up Step #1) Motor horsepower too low? Resize motor. Shorted windings in motor? Replace motor. Everything is working properly, consult factory. Model IG / IGX Make-Up Air ®...
  • Page 23: Insufficient / Too Much Airflow

    Blower speed too high? Adjust drives as needed. (Reference Blower Start-Up – Step #5) Filters not in place? Install filters. Insufficient external static pressure? Increase external static pressure. Everything is working properly, consult factory. Model IG / IGX Make-Up Air ®...
  • Page 24: Excessive Noise / Vibration

    Adjust wheel(s) or inlet. At this time noise and vibration should be at acceptable levels. Troubleshooting Furnace Refer to the separate furnace Installation, Operation and Maintenance Manual for detailed information regarding furnace troubleshooting. Model IG / IGX Make-Up Air ®...
  • Page 25: Optional Evaporative Cooling

    Use the main supply valve to reduce the supply of water Air velocity greater than specified? Reduce the air velocity through the media (Reference Blower Start-Up – Step #5) At this time the evaporative cooler should be operating without water blowing through Model IG / IGX Make-Up Air ®...
  • Page 26: Maintenance Routine

    • A high quality lithium based grease conforming to NLGI Grade 2 consistency, such as those listed here: Mobil 532 Texaco Multifak #2 B Shell Alavania #2 Mobilux #2 Texaco Premium #2 Exxon Unirex #2 Model IG / IGX Make-Up Air ®...
  • Page 27: Routine

    Be sure to read and follow the manufacturer’s recommendations before using any cleaning fluid. CAUTION Caution should be used to avoid injury when venting the coil. High pressure and/or high temperature fluids can cause serious injuries. Model IG / IGX Make-Up Air ®...
  • Page 28: Fall

    • Follow the start-up procedure to light the burners 6. After drying the coil, wait a few minutes then repeat and verify proper operation. Step #5. 7. Leave drains open and do not install plugs until beginning of cooling season. Model IG / IGX Make-Up Air ®...
  • Page 29 Recovered fluid can be used to flush other coils. Percent of Percent of Freeze Point Freeze Point Ethylene Propylene Glycol Glycol ºF ºC ºF ºC by Volume by Volume Model IG / IGX Make-Up Air ®...
  • Page 30: Reference Vent Connections

    Reference - Model IG Venting Connection Location Exhaust Outlet Venting Location Dimensions Combustion Air Inlet Housing 3.89 5.12 9.12 11.59 23.11 27.58 3.91 3.89 7.89 11.62 25.34 32.27 3.91 3.89 7.89 11.62 25.34 32.27 Discharge End Dimensions are in inches.
  • Page 31: Model Ig - Single Or 2 Stage

    15. Inlet Air Sensor (Optional) - Outdoor air stat that automatically controls the heating and/or cooling based on outdoor air temperature. 16. Stage Controller - Provides single or two stage control of the furnace. Model IG / IGX Make-Up Air ®...
  • Page 32: 8:1 Staged

    14. Heating Terminal Block - Provides wiring access to heating controls. 15. Inlet Air Sensor (Optional) - Outdoor air stat that automatically controls the heating and/or cooling based on outdoor air temperature. Model IG / IGX Make-Up Air ®...
  • Page 33: 4:1 Modulation

    14. Heating Terminal Block - Provides wiring access to heating controls. 15. Inlet Air Sensor (Optional) - Outdoor air stat that automatically controls the heating and/or cooling based on outdoor air temperature. Model IG / IGX Make-Up Air ®...
  • Page 34: Model Igx - Blower Control Center

    14. Evaporative Cooling Fuses (Optional) - Provides proper fusing to evaporative cooling pump and controls. 15. Transformer Fuse (Optional) - Provides proper fusing for evaporative cooling transformer. Model IG / IGX Make-Up Air ®...
  • Page 35: Start-Up Checklist

    Typical setting 5 minutes; 45ºF (7ºC) Check media orientation Dirty Filter Gauge Check for proper water flow to distribution ________ Actual Setting headers Typical setting varies Check for distribution header orientation to prevent water spillage Model IG / IGX Make-Up Air ®...
  • Page 36: Maintenance Log

    _________________________________________________ _________________________________________________ Our Commitment As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice. Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in the Library under Warranties.

This manual is also suitable for:

Igx

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