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Lifebreath 120ERV manual

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Table of contents for the manual

  • Page 1

    Package 1 of 1 contains: 1 - Assembled ventilator 1 - Bag assembly containing: 4 - Hanging straps 1 - Installation manual 1 - Remote electrical control box 1 - Bag containing sealant putty Installation Tools • tin snips • large zip ties • assorted screw drivers • fabric flexible duct • electric drill - class I I rated • hammer • masti[...]

  • Page 2

    2 3 2 1 20 40 60 80 100 120 140 0 0.1 0.2 0 .3 0.4 0.5 0 .6 0.7 0.8 0 .9 Stat ic P ressure (i n w.g. ) Air Flow (c fm ) 3 - High Speed 2 - Medium Low Speed 1 - Low speed Engineering Data Model RNC120F THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE The cross-flow heat recovery core transfers heat between the two airstreams. It is easily removed for cl[...]

  • Page 3

    ALL DUCT CONNECTION COLLARS ARE 5" DIAMETER FRESH AIR FROM OUTSIDE EXHA UST AIR FROM BUILDING FRESH AIR T O BUILDING EXHA UST AIR T O OUTSIDE T OP VIEW SER VICE CLEARANCE FROM BO TTOM OF UNIT IS MINIMUM 3'0" FRESH AIR FROM OUTSIDE EXHA UST AIR FROM BUILDING EXHA UST AIR T O OUTSIDE FRESH AIR T O BUILDING HANGING STRAPS DRAIN CONNECTI[...]

  • Page 4

    4 Engineering Data Model 120ERV Latent Recovery/Moisture Transfer Core The cross flow energy recovery core transfers heat and water vapor between the two air streams. It is easily removed for cleaning and service. MOTORS AND BLOWERS Each Air stream has an independent motorized impeller. 3 speed operation 120VAC. FILTERS Washable air filters in exha[...]

  • Page 5

    5 Engineering Data Model 120ERV ALL DUCT CONNECTION COLLARS ARE 5" DIAMETER FRESH AIR FROM OUTSIDE EXHA UST AIR FROM BUILDING FRESH AIR T O BUILDING EXHA UST AIR T O OUTSIDE T OP VIEW SER VICE CLEARANCE FROM BO TTOM OF UNIT IS MINIMUM 3'0" FRESH AIR FROM OUTSIDE EXHA UST AIR FROM BUILDING EXHA UST AIR T O OUTSIDE FRESH AIR T O BUILDI[...]

  • Page 6

    6 Installation Instructions The RNC120F model can be setup in two different airflow configurations as illustrated in the engineering data sec- tion of the manual. Because of this, it is extremely important that the unit be connected properly. The remote electrical control box contains two receptacles labelled “Fan Connection A” and “Fan Conne[...]

  • Page 7

    7 Location Selection The HRV must be located in a heated space where it will be possible to conveniently service the unit. Typically the HRV would be located in the mechanical room or an area close to the outside wall where the weather hoods will be mounted. If a basement area is not convenient or does not exist, a utility or laundry room may be us[...]

  • Page 8

    36" (1m) recommended min. 36" (1m) recommended min. 6' (2m) recommended min. 18" (460mm) min. 18" (460mm) min. OUTSIDE CORNER INT AKE EXHA UST INSIDE CORNER 8 When installing the weather hood, its outside perimeter must be sealed with exterior caulking. * Local code may require greater distances. Intake Weatherhood Requirem[...]

  • Page 9

    9 Air Duct Design and Installation A well designed and installed ducting system will allow the HRV to operate at its maximum efficiency. Always try to keep duct runs as short and straight as pos- sible. See Installation Diagrams for various installation options. The inner and outer liners of the flexible insulated duct must be clamped to the sleeve[...]

  • Page 10

    10 Stale Air Exhaust System The stale air exhaust system draws air from the points in the house where the worst air quality problems occur. Stale air ducts should be installed in the bathroom, kitchen, and laundry room. Applications such as green- houses, atriums, swimming pools, saunas, etc. have unique ventilation requirements which should be add[...]

  • Page 11

    11 DIRECT CONNECTION of the SUPPLY AIR STREAM to the AIR HANDLER COLD AIR RETURN (Stale air drawn from key areas of home) Air Handler Outdoors *Unit is normally balanced on HIGH speed with air handler blower ON. High efficiency filter or electronic air cleaner Cool Air Return NOTES: 1. Air handler blower may be required to operate when HRV is on to[...]

  • Page 12

    12 DIRECT CONNECTION of both the HR V SUPPL Y AIR STREAM and EXHA UST AIR STREAM to the AIR HANDLER COLD AIR RETURN Defrost air port needs to be drawn fr om clean area without combustion appliances. T o av oid backdrafting of comb ustion pr oducts, never draw defrost air from a room with a naturally aspirated appliance, i.e. furnace, hot water heat[...]

  • Page 13

    13 Outdoors *Unit is normally balanced on HIGH speed with air handler blower ON. NOTES: 1. Weather hood arrangement is for drawing purposes only. 6' (2m) minimum separation required. 18" (460mm) above grade minimum or above anticipated snow level . 2. The HRV air flow must be confirmed on site, using the balancing procedure found in the i[...]

  • Page 14

    14 DIRECT CONNECTION of the SUPPLY AIR STREAM to the AIR HANDLER COLD AIR RETURN (Stale air drawn from key areas of home) Air Handler Outdoors *Unit is normally balanced on HIGH speed with air handler blower ON. High efficiency filter or electronic air cleaner Cool Air Return NOTES: 1. Air handler blower may be required to operate when HRV is on to[...]

  • Page 15

    15 DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and EXHAUST AIR STREAM to the AIR HANDLER COLD AIR RETURN Defrost air port needs to be drawn fr om clean area without combustion appliances. T o av oid backdrafting of comb ustion products, never draw defrost air fr om a room with a naturall y aspirated appliance, i.e . furnace, hot water heate[...]

  • Page 16

    16 Outdoors *Unit is normally balanced on HIGH speed with air handler blower ON. NOTES: 1. Weather hood arrangement is for drawing purposes only. 6' (2m) minimum separation required. 18" (460mm) above grade minimum or above anticipated snow level . 2. The HRV air flow must be confirmed on site, using the balancing procedure found in the i[...]

  • Page 17

    17 Ventilation Dehumidistat PART NO. 99-116 The High/Low Speed Switch initiates High or Low speed ventila- tion. This control also has an ON/OFF Switch and a Dehumidistat Dial (refer to "The ON/OFF Switch" and "The Dehumidistat Dial" descriptions). Remote Dehumidistat PART NO. 99-130 W hite The Remote Dehumidistat activates high[...]

  • Page 18

    18 Wiring the Controls Red to Red Black to Black Green LED Drive to Green DEH UMIDISTA T Red to Red Orange to Orange Black to Black Dehumidistat Ventilation Control Part No. 99-116 20 Minute Timer (shown in a Decora cover plate)* Red to Red Black to Black Remote Dehumidistat Part No. 99-130W Remove factory installed jumper when installing this cont[...]

  • Page 19

    19 The HRV unit should be plugged into a standard designat- ed (120VAC) electrical outlet with a ground. The outlet should be serviced by a separate 15 amp/120V circuit. An extension cord should not be used with this appliance. A qualified service technician should make any required electrical connections. Remote Control Connections Prior to connec[...]

  • Page 20

    20 Operation Self T est The ventilator will automatically initiate a self test sequence when power is applied. Fan motor is cycled and then damper motor is cycled. Duration: Approximately 1.5 mins. How m uch ventilation do I need? During seasons when your windows and doors are closed (winter and summer if air conditioned) the HRV should operate con[...]

  • Page 21

    21 Wiring Diagrams HRV CONTROL BOX FA N B FA N A F AN A F AN B[...]

  • Page 22

    22 When using the Interface relay contacts to initiate b lower operation on a fur- nace, cer tain thermostats will initiate the outdoor cooling condenser when R and G are closed. Use this wiring configur ation to prev ent the Interf ace rela y contacts from initializing the condenser unit. This problem can occur at the thermostat because the Y ter [...]

  • Page 23

    23 The fan defrost HRV is equipped with an electronically controlled fan defrost system to remove frost that collects on the warm air side of the aluminum heat transfer sur- faces of the heat exchanger core. When the outside air temperature drops below 27°F (3°C), defrost is activated which provides for an automatic defrost cycle. During the auto[...]

  • Page 24

    24 It is necessary to have b alanced air flow in an H R V . The volume of air b rought in from the outside must e q ual the volume of air e x hausted b y the unit. If the air flow is not properly b alanced , then : • The H R V may not operate at its ma x imum efficiency •A negative or positive air pressure may occur in the house • The unit ma[...]

  • Page 25

    MAGNEHELIC MAGNEHELIC Placement of Pitot T ube HR V MAG NEHELIC DUCT AIR FLOW Pitot tube High Pressure Side Low Pressure Side Magnehelic gauge Pitot T ube and Gaug e Pitot T ube Air Flow Balancing Kit with magnehelic gauge, Pitot tube, hose and carry case. NOTE: Graphic is for illustrative purposes only. Duct connection ports may vary. NOTE: Apply [...]

  • Page 26

    Troubleshooting 26 Poor A ir Flow Supply air feels cold Dehumidistat is not O perating H umidity L evels are too H igh in Winter Condensation is appearing on the windows H umidity L evels are too L ow H R V and / or Ducts Frosting up Condensation or Ice Build U p in Insulated Duct to the O utside Water in the b ottom of the H R V 20 M inute Timer N[...]

  • Page 27

    1. Inspect Exterior Hoods at least once a month. Make sure exhaust and fresh air supply hoods are not blocked or restricted by leaves, grass, or snow. In winter, it is especially important to make sure snow is not blocking the hoods or that frost has not built up on the wire mesh (bird screen). WARNING: B loc k age of hoo d s may cause an imbalance[...]

  • Page 28

    28 Date Maintenance Performed Contractor Maintenance Record Note: It is important to maintain this product regularly to ensure optimal performance.[...]