Lifebreath ERV Installation Manual
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Lifebreath ERV Installation Manual

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Summary of Contents for Lifebreath ERV

  • Page 2 After installation, the compatibility of the two pieces of equipment must be confirmed, by measuring the airflows of the ERV, by using the balancing procedure found in this manual. Never install a ventilator in a situation where its normal operation, lack of...

  • Page 3: Table Of Contents

    Aircom Relays & Interlocking to a furnace/air handler .................... 22 Balancing the Airflows .............................. 24 Service and Maintenance ............................26 Reverse Installation of the ERV ..........................28 Troubleshooting ................................ 29 Wiring Diagrams (330ERV) ............................31 Wiring Diagrams (530ERV) ............................32 Wiring Diagrams (730ERV and 1230ERV) ........................

  • Page 4: Location Notes

    Hang unit with suspended rods and “U” Mount unit on wooden or metal curb assembly. channel members. Unit must be raised an adequate height for installation and slope of drain lines. May be anchored to floor, leaving space for drain connections. www.lifebreath.com...

  • Page 5: Ducting The System

    UCTING THE YSTEM A properly designed ducting system will allow the ERV to operate at its maximum efficiency. (Air flow will be restricted by undersized ducting, use of too many elbows, tees, bends, etc.). Always try to keep duct runs as short and straight as possible.

  • Page 6: Dimensional Drawings

    IMENSIONAL RAWINGS 330ERV Dimensions: 530ERV Dimensions: www.lifebreath.com...
  • Page 7 IMENSIONAL RAWINGS 730ERV Dimensions: 1230ERV Dimensions: www.lifebreath.com...

  • Page 8: The Integrated Hvac System

    Note: Example configuration only. Figure A The ERV has become an integral component of the HVAC system. Figure A shows an ERV unit providing fresh air directly to the return air plenum of a rooftop heat/cool unit. In the balanced airflow system, the ERV exhaust removes stale room air (eg. from lunch room, storage or copy area) and returns to the space an equal amount of fresh outdoor air, making the use of an economizer obsolete in conjunction with an ERV.
  • Page 9 By operating the ERV on a 24 hour / 7 day battery backed timer, the unit can be set to operate only when occupancy or indoor conditions require the air exchange.

  • Page 10: Stale Air Return And Fresh Air Supply System

    0.1 to 0.15 in. w.g. A damper located just prior to the ERV is required to balance the stale air exhausted with the fresh air supply entering the building.

  • Page 11: Weatherhoods And Grilles

    • A good bead of high quality caulking (preferably acoustical sealant) and taping with a high quality • aluminum foil tape is recommended to seal the duct to both the ERV and the weatherhood. Techgrilles: • The use of balancing dampers or adjustable grilles as supply air diffusers and air exhaust covers are recommended.

  • Page 12: Electrical Connections

    Always ensure the ERV is properly grounded before and after testing. Caution The ERV is designed to operate with ducting. When first starting the ERV, measure the amp draw to • each motor at each speed to ensure it is operating at or below the max rating.

  • Page 13: Functions And Controls

    Optional 20/40/60 Minute Timer (99-DET01) Page 21 for installation on circuit board. Note It is recommended to use the optional speed control Part # 99-500 in order to obtain 3 speed fan • control. www.lifebreath.com...

  • Page 14: Main Wall Control

    Only one main control can be installed on your system. • Recirculation is not available on all models. • Timers will not function when mode of operation is set to “OFF”, unless specifically installed • for the function. (See Installation Guide for other options.) www.lifebreath.com...
  • Page 15 Only one main control can be installed on your system. • Recirculation is not available on all models. • Timers will not function when mode of operation is set to “OFF”, unless specifically installed for the function. (See Installation Guide for other options.) www.lifebreath.com...
  • Page 16 Only one main control can be installed on your system. • Recirculation is not available on all models. • Timers will not function when mode of operation is set to “OFF”, unless specifically • installed for the function. (See Installation Guide for other options.) www.lifebreath.com...
  • Page 17 10. Connect the 3 wire 20 gauge (min.), 100 ft length (max.), to the RED, GRN, and YEL terminal on the Digital Controls terminal strip on the Aircom circuit board (figure D). Attention • Use care when separating or attaching the face plate to avoid damaging the contact pins. www.lifebreath.com...
  • Page 18 Use 4 wire; 20-gauge wire (minimum) • When used in conjunction with the 99-BC04, the BC04 control must be ON for the 99-500 control • to operate. The 99-BC04 will override the 99-500 control when the control is set to HIGH speed www.lifebreath.com...

  • Page 19: Timers And Repeaters

    On the back of the face plate the battery will be exposed. b) Replace the battery and re-attach the face plate to the back plate. Attention Be careful not to damage the tabs on the back plate when re-attaching the face plate. • www.lifebreath.com...
  • Page 20 5. Attach the face plate to the back plate (figure B). Attention The wireless timers and repeaters must be paired to the main control of the ERV. This process is called • “Pairing”. Multiple timers and repeaters can be paired to the digital wall control.
  • Page 21 6. To pair additional repeaters with the same main control, repeat steps 1 through 5 until all repeaters have been paired. Attention The repeaters are to be plugged directly into a 120V power outlet. • www.lifebreath.com...
  • Page 22 Connect the wires from the Y, R, and G terminals on the timer to the YEL, RED, and GRN terminals on the circuit board as shown. Note Timers mount in standard 2” x 4” electrical boxes. • Wire multiple timers individually back to the unit. • • Use 3 wire; 20-gauge wire (minimum) www.lifebreath.com...

  • Page 23: Aircom Relays & Interlocking To A Furnace/Air Handler

    These relays initiate whenever the ERV fans are operating. • Use contact 2 or 4 to interlock the ERV to an Air Handler or Furnace. Note: Connecting the ERV as illustrated will ensure the Air Handler Blower Motor is operating whenever the ERV is ventilating.
  • Page 24 1. Both fans will stop for one minute. 1. Both fans will stop for one minute. 2. The ERV exhaust motor will initiate and 2. The ERV exhaust motor will initiate and operate for 4 minutes. operate for 4 minutes.

  • Page 25: Balancing The Airflows

    6. After taking readings of both the stale air to the ERV duct and fresh air to the house duct, the duct with the lower CFM ([L/s] velocity) reading should be left alone, while the duct with the higher reading should be adjusted back to match the lower reading.
  • Page 26 Accuracy can be increased by taking an average of multiple readings as outlined in the literature supplied with the Pitot tube. Note: Duct connections may vary, depending on model. Note: Place pitot tube a minimum of 18” from blower or elbows www.lifebreath.com...

  • Page 27: Service And Maintenance

    Access to the motor is through the front service doors. Note heat exchanger core can be removed to provide more room. See ERV Core in this section. The motor is a permanent split capacitor type (PSC) which uses a sleeve mechanism to steady the shaft.
  • Page 28 Only use cold water with a mild detergent to wash the filters. Do not use harsh chemicals. The time between filter service will depend on the application the ERV has been installed in. It can be as often as one - two months or at the very least, cleaned every six months.

  • Page 29: Reverse Installation Of The Erv

    1. Remove the door panels from the ERV by 1. Install the two snap plugs in the cabinet holes loosening the screws located on the face of the on the side of the ERV which electrical box was doors. originally removed from.

  • Page 30: Troubleshooting

    16 T ROUBLESHOOTING Refer to the following table for troubleshooting the ERV unit. Table 17.1 – Troubleshooting Procedures SYMPTOM CAUSE SOLUTION Poor airflows • 1/4 in. (6mm) mesh on outside • Clean exterior hoods or vents hood is plugged •...
  • Page 31 17 T ROUBLESHOOTING Refer to the following table for troubleshooting the ERV unit. Table 17.1 – Troubleshooting Procedures (cont.) SYMPTOM CAUSE SOLUTION Humidity levels are too • Dehumidistat is set too high • Set Dehumidistat lower high condensation is •...

  • Page 32: Wiring Diagrams (330Erv)

    18 W (330ERV) IRING IAGRAMS www.lifebreath.com...

  • Page 33: Wiring Diagrams (530Erv)

    17 W (530ERV) IRING IAGRAMS www.lifebreath.com...

  • Page 34: Wiring Diagrams (730Erv And 1230Erv)

    17 W (730ERV 1230ERV) IRING IAGRAMS www.lifebreath.com...

  • Page 35: Warranty

    AIRIA®, are excluded from this warranty. If you feel that the LIFEBREATH® unit you purchased is not free from manufacturing defects, please refer to https://www.lifebreath.com/homeowners-2/find-a-contractor/ to find the name of your nearest dealer in order to repair the product.

This manual is also suitable for:

330 erv530 erv730 erv1230 erv

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