Greenheck ERV-522 - Manual

Greenheck ERV-522

Greenheck ERV-522 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – Model ERV Energy Recovery Unit; Receiving
  • Page 3 – Supplemental Installation, Operation and
  • Page 4 – Lifting; Unit Weights; *Weight assumes outdoor unit with; Unit Size; All dimensions are in inches.
  • Page 5 – Roof curbs are; Curb Outside Dimensions and Weights; Curb Outside Dimensions -; continued; Recommended Discharge Duct Size and Length; Ductwork Connections
  • Page 6 – Rail Mounting / Layout; intake opening on the ERV unit. Avoid area dimensioned “B” below.
  • Page 7 – Service Clearances; drawings below for these dimensions.; Recommended Service Clearances; Arrangement B, C or D
  • Page 8 – Electrical Information; See voltage use range on the rating; Field Control Wiring Length/Gauge; Total
  • Page 9 – Typical Control Center Components; Exploded Detail; Access to Control Center Components; Electric Heater Application/Operation; Electric Preheater:; Outdoor Air Weatherhood; Unit Accessories
  • Page 10 – Access Panel Description and Location; Arrangement A
  • Page 11 – Interior
  • Page 12 – Dimensional Data
  • Page 14 – Electric preheat frost control; Frost Control Application/Operation; and; the outdoor air temperature sensor; Frost Threshold Temperatures; Optional Accessories
  • Page 15 – Economizer Application/Operation; Temperature Sensor with Override; wheel should start rotating.; Enthalpy Sensor with Override; Enthalpy Sensor to terminal So.; Sequence of Operation:; The variable frequency; ) is the outdoor air temperature set point,; is the supply air discharge thermostat set point.; Wheel runs at full speed.
  • Page 16 – Factory Set Points; • SC to S4 - Drive runs at 40Hz; Variable Frequency Drives for Energy Recovery Blowers; FOR ONE 0-10 SIGNAL, WIRE TO DRIVES IN PARALLEL; SC; SEE VFD INSTALLATION MANUAL FOR MORE DETAIL
  • Page 17 – Setting; MODULATING CONTROL FOR FAN SPEED; Factory Set Points -; Resetting the drive to factory defaults
  • Page 18 – Typical Wiring Diagram
  • Page 19 – levels
  • Page 20 – Indicator Lights powered by the ER Unit; Refer to Pressure Switch for voltage and load ratings.; “On” - Manual Operation
  • Page 21 – Temperature Sensors - 1K Ohm RTD; Sensors Mounted by Factory; ENERGY WHEEL
  • Page 22 – General Start-Up Information; check as items are; DANGER
  • Page 23 – Optional Accessories Checklist
  • Page 24 – CAUTION; Forward Curved
  • Page 25 – Vibration; Energy Recovery Wheel; Inside layout of ERV-361
  • Page 26 – Dampers; Fan Motors; Routine Maintenance; Maintenance Procedures:; Lubrication
  • Page 27 – Fan Wheel & Fasteners; Bearings; Access to the outdoor air filters; Door Seal Maintenance; Closed cell foam; Outdoor air intake hood; Energy Recovery Wheel Maintenance; Access to wheel through
  • Page 28 – ERV-522 has two energy wheels with access; Wheel segment removed; Place retainers back in the original
  • Page 29 – Cleaning the Energy Recovery Wheel; not recommended; Energy Recovery Wheel Belt
  • Page 30 – Parts List
  • Page 31 – Sequence of Operation; Basic Unit; Economizer Operation:; Winter Operation; Frost Control Operation:
  • Page 32 – Troubleshooting – Airflow; Test and Balance Report
  • Page 33 – Symptom; Troubleshooting – Unit
  • Page 35 – Maintenance Log
  • Page 36 – Warranty
Loading the manual

1

Model ERV Energy Recovery Unit

®

Installation, Operation and Maintenance Manual

Please read and save these instructions. 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! Retain instructions for future reference.

Part #455924

Energy Recovery Ventilators

Only qualified personnel should install this system.
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 Electric Code (CEC) in
Canada.

2. All moving parts must be free to rotate without

striking or rubbing any stationary objects.

3. Unit must be securely and adequately grounded.
4. Do not spin fan wheel faster than maximum

cataloged fan RPM. Adjustments to fan speed
significantly effects 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 access doors to the unit while it is

running.

General Safety Information

DANGER

Always disconnect power before working on or near
this equipment. Lock and tag the disconnect switch
or breaker to prevent accidental power up.

CAUTION

When servicing the unit, the internal components
may be hot enough to cause pain or injury. Allow
time for cooling before servicing.

CAUTION

Precaution should be taken in explosive
atmospheres.

Models: ERV-251

ERV-361

ERV-521

ERV-581

ERV-522

ERV-582

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Summary

Page 2 - Model ERV Energy Recovery Unit; Receiving

2 Model ERV Energy Recovery Unit Machined parts coated with rust preventive should be restored to good condition promptly if signs of rust occur. Immediately remove the original rust preventive coating with petroleum solvent and clean with lint-free cloths. Polish any remaining rust from surface wit...

Page 3 - Supplemental Installation, Operation and

3 Model ERV Energy Recovery Unit Table of Contents Basic Operation . . . . . . . . . . . . . . 3 Installation Supplemental Installation, Operation and Maintenance Manuals . . . . . . . . . . . 3 Installation Concerns. . . . . . . . . . . . 3 Lifting . . . . . . . . . . . . . . . . . . 4 Roof Curb an...

Page 4 - Lifting; Unit Weights; *Weight assumes outdoor unit with; Unit Size; All dimensions are in inches.

4 Model ERV Energy Recovery Unit Lifting 1. Before lifting, be sure that all shipping material has been removed from unit. 2. To assist in determining rigging requirements, weights are shown below. 3. Unit must be lifted by all lifting lugs provided on base structure. 4. Rigger to use suitable matin...

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