REVERSOMATIC RERV-D100SA Enthalpy Core
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY, OBSERVE THE FOLLOWING:
- Read all the instructions carefully before installation, operation or maintenance of the unit. Failure to comply with instructions could result in personal injury and/or property damage.
- Installation of the unit and the corresponding electrical wiring must be done by a qualified person and be in accordance with all municipal and national electrical codes and pertinent industry standards should be verified before installation.
- Use this unit only in the manner intended by the manufacturer.
- “To ensure quiet operation of the ENERGY STAR certified H/ERV, each product model must be installed using sound attenuation techniques appropriate for the installation.”
- “The way your heat/energy-recovery ventilator is installed can make a significant difference to the electrical energy you use. To minimize the electricity use of the heat/energy-recovery ventilator, a stand- alone fully ducted installation is recommended. If you choose a simplified installation that operates your furnace air handler for room-to-room ventilation, an electrically efficient furnace that has an electronically commutated
- (EC) variable speed blower motor will minimize your electrical energy consumption and operating cost.”
- “Installation of a user-accessible control with your product model will improve comfort and may significantly reduce the product model’s energy use.”
- Moving Parts, Disconnect Power supply before opening. ensure that all the nuts and screws are securely fastened before restarting the unit.
- Before servicing or cleaning the unit, switch power off at the service panel and lock the service disconnecting means to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device.
- To reduce the risk of fire, use only metal ductwork.
- For residential use only. The unit must be grounded.
- Do not install in a cooking area.
- This unit is not designed to exhaust combustion and/or dilution air for fuel-burning appliances
CAUTION
- Turn the unit OFF during construction or repair to avoid filter blockage.
- Exhaust air outside – Do not intake / exhaust air in spaces within walls, crawl spaces, garage, or into attics.
- When leaving the house for a long period of time (more th two weeks), a responsible person should check if the unit operates adequately.
PACKAGING INSPECTION
Open the box and check to make sure all the parts and accessories are present and in good condition. If you find any parts missing or any shipping damage please contact factory or our distributor immediately.
Parts List
| Reference | Description | Part No. | RERV-D100SA |
| QTY | |||
| 1 | HRV/ERV -lid, Pan Assembly | 9315 | 1 |
| 2 | Polypropylene collar 5′ Dia. | 014043C | 2 |
| 3 | Filter 7″ x 12″ (MERV -4 ) | 9358 | 2 |
| 4 | Enthalpy Core | 9314ECM | 1 |
| 5 | 5″ Polypropylene Backdraft Damper | 14043 | 2 |
| 6 | Motor – Exhaust/Supply(ECM) | 13085 | 2 |
| 7 | Adjustable Door Latch | 9319 | 1 |
| 8 | Drain Spout Assembly | 9320 | 2 |
| 9 | Core Locking Bracket | 9321 | 1 |
| 10 | Nut | 14016 | 1 |
| 11 | Safety Switch | 9322 | 1 |
| 12 | Electrical Box Cover | 9323 | 1 |
| 13 | Main Control Board (ECM) | 9361-ECM (DIP) B | 1 |
| 14 | Main Control Board Bracket | 9355 | 2 |
| 15 | Defrost Motor | 9325 | 1 |
| 16 | Temperature Sensor | 9326 | 1 |
| 17 | Defrost Damper Assembly | 9327 | 1 |
| 18 | Door Hinges | 9328 | 1 Set |
| 19 | Extension Box Cover | 9329 | 1 |
| 20 | Mounting Brackets | 11135 | 4 |
| 21* | “T” Connector | 9330 | 1 |
| 22* | Webbing/Brackets/Ladder Locks | 9332 | 2 Sets |
| 23* | Electronic Timer Switch (TC100) | 9349 | 1 |
| 24* | Drain Pipe | 9331 | 1 |
Wiring Diagram
Wiring Diagram: Superior ECM with & without DIP Switch
Furnace / Fan-Coil / Heat Pump Interlock:
WARNING
Never connect a 120-volt AC circuit to the terminals of the furnace/fan-coil/heatpump interlock (Standard Wiring). Only use the low voltageclass 2 circuit.
For a furnace connected to a cooling system:
On some older thermostats, energizing the R and G terminals at the furnace has the effect of energizing Y at the thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the “Alternate Interlock Wiring”.
Installations
HRV and ERV Typical Installations
Note: All HRV / ERV must be balanced in the field.
HORIZONTAL
- 32” clearance is recommended for cleaning of the core/servicing the unit. (use appropriate access door size)
- Dampers are installed for horizontal installation. For vertical installation both dampers have to be turned so they can open properly and close when there is any backdraft.
- Make sure no screw will interfere the function of the backdraft damper flaps while installing the duct work to the HRV/ERV.
VERTICAL
Note: After installation make sure the HRV/ERV is properly leveled. If not leveled correctly, then defrost will not perform effectively and/or unit may frost in winter.
Typical Installations of Single Vents & Access door
Note: Fresh air intake and supply duct must be totally insulated. Exhaust duct must be 5 feet insulated from the wall. In colder climate, it is recommended to insulate all exhaust and supply ducts
- Use appropriate access door size and install on proper location for easy access to all HRV/ERV components for routine OhéCk’and maintenance.of the For more info visit http://hvwm.reversomatic.com/HRV&ERV/Accessories
Drain Connection
During defrost cycle the HRV unit may produce some condensation and the water should flow into a nearby drain. The HRV cabinet has pre-punched holes(two on side and one on the door) for the drain, in order to keep the drain pan intact, hand tighten the plastic drain spout to the unit using the gasket and nuts.
For Vertical installation
Cut two sections of 1/2″ drain pipe and connect the other ends to the drain spout then connect to “T” connector. Connect a drain line and create a P-trap to prevent the unit from unpleasant odours from drain source. Tape or fasten base to avoid any bends.
Note: For Horizontal installation, connect only 1 drain spout assembly on lid I door. cut one h” drain pipe and connect one end to the drain spout and the other end to the drain line. Don’t forget to create a P-trap as shown above.
CAUTION: The HRV and all condensate lines must be installed in a space where the temperature is maintained above the freezing point or freeze protection must be provided.
Air Flow Balancing
For units without built-in true Automatic Electronic Air-balancing and for cross verification only
Balancing Procedure
It is required to have balanced air flows in an HRV/ERV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit while running at normal speed. If the air flows are not properly balanced, then:
- The HRV/ERV may not function at its maximum efficiency
- A negative or positive air pressure may occur in the house or condo
- The unit may not defrost properly
Prior to balancing, ensure that:
- All the HRV/ERV’s components are in place and functioning properly.
- All sealing of the ductwork system has been completed.
- Set the unit to normal speed.
- Air flows in the branch to specific areas of the house should be adjusted first prior to balancing the unit.
- After taking reading of both the stale air to the HRV/ERV duct and fresh air to the house duct, the duct with the lowerCFM reading should be left alone while the duct with the higher airflow should be slower down to match the lower
- reading by adjusting dial/speed controller on control board (see board layout on page-4). Return unit to the appropriate fan speed for normal operation.
Pitot Tube Airflow Balancing
The following is a method of field balancing an HRV/ERV using a Pitot tube is advantageous in situations when flow stations are not installed in the ductwork. The procedure should be performed with the HRV/ERV on normal speed. The first step is to operate all mechanical systems on most desired speed, which have an influence on the ventilation system, the forced air furnace or air handler if applicable. This will provide the maximum pressure that the HRV/ERV will need to overcome, and allow for a more accurate balancing of the unit. Drill a small hole in the duct (about 3/16″), three feet downstream of any elbows or bends, and one foot upstream of any elbows or bends. These are recommended distances but the actual installation may limit the amount of straight duct. The Pitot tube should be connected to a magnehelic gauge capable of reading from 0 to 0.25 in. (0-62 Pa) or another digital airflow meter. The tube coming out of the top of the pitot is connected to the high-pressure side of the gauge/meter and the tube coming out of the side of the pitot is connected to the low-pressure or reference side of the gauge/meter. Insert the pitot tube into the duct; pointing the tip into the airflow. For general balancing it is sufficient to move the pitot tube around in the duct and take an average or typical reading. Repeat this procedure in the other duct. Determine which duct has the highest airflow (highest reading on the gauge). Then slower down that motor speed by adjusting dial/speed controller on the control board to match the lower reading from the other duct. The flows should now be balanced. Actual airflow can be determined from the gauge/metre reading. The value read on the gauge is called the velocity pressure, and on the flow meter is called air velocity(FPM). The Pitot tube comes with a chart that will give the air flow velocity based on the velocity pressure indicated by the gauge. This velocity will be in either feet per minute or metres per second. To determine the actual airflow, the velocity is multiplied by the cross-sectional area of the duct being measured.
Maintenance
Regular Maintenance
- Turn the unit off and disconnect the power supply.
- Unlatch the door and lift the door panel towards you, hold it firmly and slide it to the left.
- Clean the inside of the door and drain pan with a damp cloth to remove dirt and debris that may be present.
- Clean the filters: (twice a year)
- Remove the filters.
- Vacuum to remove most of the dust.
- Wash with a mixture of warm water and mild soap. Rinse thoroughly and shake filters to remove water and let dry.
- Oil/grease defrost damper levers and hinges.
- Check the exterior fresh air supply hood:
- Make sure there are no leaves, twigs, grass, ice, or snow that could be drawn into the vent. Partial blocking of this air vent could cause the unit to malfunction.
- Reassemble the components, the Filters and the Door (The door is secured when you hear a click.)
- Reconnect the power and turn on the unit.
Annual Maintenance
Repeat steps 1 to 5 from the previous section and continue with the following steps:
- Clean the HRV and ERV core:
- Remove filters, loosen the core locking bracket,removee the core, carefully grip the ends of the core and pull evenly outward
- HRV Core > remove dust using vacuum cleaner or rinse with cold water > Soak and rinse the HRV core in warm soapy water
- ERV Core > remove dust using a vacuum cleaner
- ATTENTION
- Do not use the cleaning solution for the HRV/ERV core
- Do not use a pressure washer on the HRV/ERV core
- Do not place the HRV/ERV core in the dishwasher
- Do not use bleach or chlorine
- ATTENTION
- Motors – Maintenance Free, permanently lubricated
- Drain Tube and Drain Pipe – Inspect drain tube, drain pipe and “P” trap for blockage, mold or kinks. Flush with warm soapy water and replace if worn, bent or unable to clean.
- Clean Duct Work if Required – Wipe and vacuum the duct once every year. The duct work running to and from HRV/ERVmay accumulate dirt. You may wish to contact a heating / ventilation company to do this.
- Cleaning the Fans – Fans may accumulate dirt, causing an imbalance and/or excessive vibration on the HRV/ERV. A reduction in the air flow may also occur. In new construction, this may result within the first year due to heavy dust and may occur periodically after that over time, depending on the outdoor conditions.
- Open the service door
- Remove the core
- Disconnect the fan motor wires
- remove the screws securing fan assembly
- Pull the fan assembly out of the unit
- Check for any accumulation on the blades
- clean with a small brush if necessary:
- Scrub individual fan blades until clean
- vacuum and wipe
- Put the components back in place
- Reconnect the power supply and turn the unit back on.
WARNING
Electrical shock hazard. Can cause injury or death. Before attempting to perform any serviceor maintenance, always disconnect the unit from its power source.
Troubleshooting
| PROBLEMS | POSSIBLE CAUSES | SOLUTION |
| 1. Air flow is low | – HRV/ERV airflow improperly balanced (for units without built-in Automatic Electronic Air-balancing)
– filter clogged – core obstructed – exteriorfresh air supply blocked – ductwork is restricting – power supply low (Low Voltage) |
– have professional balancer or contractor balance the unit
– remove and clean filter – remove and clean core – removeand clean the blockage – inspect duct installation – switch off the unit immediately and call the electrician to check the voltage |
| 2. Sensescold air from Supply | – Exhaust hood outsidethe houseis blocked
– HRV/ERV airflow improperly balanced (for units without built-in Automatic Electronic Air-balancing) – outdoor temperature is extremely cold |
– removethe blockageand clean the hood
– have professional balancer or contractor balancethe unit
– placement of furniture or closed doors is restricting the movement of air in the home – install a duct heater |
| 3. Water in the bottom of HRV | – drain pans, drain tube, drain pipe and “P” trap are clogged | – check for blockageand for kinks in line
– check connections – make sure water drains properly |
| 4.Timerswitch 20/40/60 minute / intermittent Switch light doesn’t stay on | – loose connection
– the switch may be defective – turn off the HRV/ERV bracker |
– check connection
– replace the timer switch – reset the main controller |
| 5. Unit is not defrosting properly | – fresh air duct maybe frozen
– HRV/ERV airflow improperly balanced -Temp.sensor maybe defective |
– check and remove the ice
– have professional balancer or contractor balance the unit – replace theTemp. sensor |
| 6.All 3 LEDs of timer switch blinks | – Control board reports error
– lost communication with main control board |
– refer to problem 4.
– check all wire connections on timer switch and main control board |
| 7. LED’s on the Main Control board and the remote wall mount Timer Switch will flash 0.5 sec On/0.5 sec Off/0.5 sec On then 2 sec Off, then repeat the cycle | – Exhaust fan open circuit:
a) motor burned b) fan overheated |
– replace motor
– call technician (if possible replace fan) |
| – damper obstructed
– exhaust fan jam / over-current |
– check backdraft damper, no screw must interfere the function of the damper
– replace the fan |
|
| 8. LED’s on the Main Control board and the remote wall mount Timer Switch will flash 0.5 sec On/0.5 sec Off/0.5 sec On/0.5 sec Off/
0.5 sec On/0.5 sec Off/0.5 sec On then 2 seconds Off, then repeat the cycle |
– Supply fan open circuit:
a) motor burned b) fan overheated |
– replace motor
– call technician (if possible replace fan) |
| – damper obstructed
– Supply Fan jam / over-current |
– check back-draft damper, no screw must interfere the function of the damper
– replace the fan |
|
| 9. LED’s on the Main Control board and the remote wall mountTimer Switch willflash:
0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ 0.5 sec On/0.5 sec Off/ ts offand 0.5 sec On, then 2 seconds Off, then repeat the cycle |
– Temperature sensor failure (Supply shuts down and exhaust runs on low only) | – replace temperature sensor |
Select HRV/ERVfor your Climate Zone
- HRVs are recommended for colder climates.
- ERVs are designed for warm-humid climates with long cooling seasons.
- U.S. Department of Energy climate zones map
MORE INFORMATION
- 790 Rowntree Dairy Road, Woodbridge, ON Canada L4L 5V3
- T: 905-851-6701
- F: 905-851-8376
- E: info@reversomatic.com
- www.reversomatic.com
FAQs
- Q: What should I do if I find missing parts or shipping damage during packaging inspection?
- A: Contact the factory or distributor immediately for assistance.
- Q: Can I install the unit in a cooking area?
- A: No, the unit is not designed for installation in a cooking area.
- Q: How should I reduce electricity use for the heat/energy-recovery ventilator?
- A: Opt for a stand-alone fully ducted installation and use an electrically efficient furnace with a variable speed blower motor.
Documents / Resources
 |
REVERSOMATIC RERV-D100SA Enthalpy Core [pdf] Instruction Manual RERV-D100SA, RERV-D100SA Enthalpy Core, RERV-D100SA, Enthalpy Core, Core |