Lifebreath RNC20 manual

TI-RNC 0108 Residential Heat Reco very V entilators (HR V) Manufactured with 2 Speed RNC Electr onics Installation Instructions for Heat Reco very V entilators with 2 Speed RNC Electronics RNC Series Models RNC95 RNC155 RNC200 RNC10 RNC20 RNC120D RNC5-TPD[...]

Introduction.........................................................................2 Engineering Data - RNC95 .............................................3-4 Engineering Data - RNC155 ...............................................5 Engineering Data - RNC200 ...............................................6 Engineering Data - RNC10 ..............[...]

3 Removab le Heat Recovery Core Drain P an Drain spout FRONT TOP knockout f or side mounting of EXHA UST return port 6" round collar converted to oval minimum 18 inches (459 mm) required for service access Threaded inserts (4) at corners SUPPL Y Fresh air from outside 5" round collar SUPPL Y Fresh air to building 6" round (conv . to [...]

4 RNC95 Specifications The RNC95 HRV (Heat Recovery Ventilator) has been designed to allow the installer to choose between two possible positions on the cabinet for the Stale Air Exhaust (from building) port. Illustrations in this manual show standard (side mounted) port location. The same specifications apply to both RNC95 setups, regardless of wh[...]

5 Engineering Data - HRV Model RNC155 THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE The cross-flow heat recovery core transfers heat between the two air streams. It is easily removed for cleaning or service. MOTORS AND BLOWERS Each air stream has one centrifugal blower driven by a common PSC motor. 2 speed fan operation. FILTERS Washable air filters[...]

6 THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE The cross-flow heat recovery core transfers heat between the two air streams. It is easily removed for cleaning or service. MOTORS AND BLOWERS Each air stream has one centrifugal blower driven by a common PSC motor. 2 speed fan operation. FILTERS Washable air filters in exhaust and supply air streams. [...]

7 All units conform to CSA and UL standards Engineering Data - HRV Model RNC10 Date: _______________________________________________ Tag: __________________________Qty: __________________ Project: _____________________________________________ Engineer: ____________________________________________ Contractor: ________________________________________[...]

8 All units conform to CSA and UL standards Engineering Data - HRV Model RNC20 Date: _______________________________________________ Tag: __________________________Qty: __________________ Project: _____________________________________________ Engineer: ____________________________________________ Contractor: ________________________________________[...]

9 All units conform to CSA and UL standards Engineering Data - HRV Model RNC5-TPD Date: _______________________________________________ Tag: __________________________Qty: __________________ Project: _____________________________________________ Engineer: ____________________________________________ Contractor: _____________________________________[...]

10 All units conform to CSA and UL standards Engineering Data - HRV Model RNC120D Date: _______________________________________________ Tag: __________________________Qty: __________________ Project: _____________________________________________ Engineer: ____________________________________________ Contractor: _____________________________________[...]

11 Engineering Data - HRV Model RNC120D FRESH AIR FROM OUTSIDE ST ALE AIR TO OUTSIDE ST ALE AIR FROM BUILDING FRESH AIR TO B UILDING BOTT OM VIEW FOR HORIZONT AL MOUNT SER VICE CLEARANCE FROM BO TTOM OF UNIT IS MINIMUM 3’0” SIDE VIEW FOR HORIZONT AL MOUNT ALL DUCT COLLARS ARE 5” DIAMETER Connect drain hose to spout located in door . 9-1/8” [...]

Ventilation Dehumidistat PART NO. 99-116 The High/Low Speed Switch initiates High or Low speed ventilation. This control also has an ON/OFF Switch and a Dehumidistat Dial. 20/40 ON/OFF Dehumidistat PART NO. 99-2040 The 20/40 Switch will toggle from continuous low speed ventilation to an intermittent mode of 20 minutes fan ON (in low speed) and 40 m[...]

13 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 u[...]

14 Suspending the RNC120D STRAPS AND SCREWS (supplied) JOIST F ASTENERS (not supplied) DET AIL Using full length hanger straps is recommended for vibration contr ol, but can be shorter if required. Horizontal Installation W all Mounting the HR V V er tical Installation The unit must be mounted le vel for pr oper drainage of the condensate pans. A T[...]

15 Drain Connection (HRV Only) During a defrost cycle, the HRV may produce some condensation. This water should flow into a nearby drain, or be taken away by a condensate pump. The HRV cabinet has prepunched holes for the drain (see below). Insert the drain spout through the hole in the drain pan. Do not forget the “O ring” which seals each spo[...]

16 The Three Methods of Installation The three methods of installation for the HRV system are the Simplified, Partially Dedicated and Fully Dedicated Installations. Refer to the installation illustrations in this manual. Simplified Installations The Simplified Installation draws stale air from the cold air return duct of the air handler/furnace and[...]

17 The Simplified Installation (Return/Return Method) Defrost air port needs to be drawn fr om clean area without combustion appliances. T o av oid backdrafting of combustion pr oducts, never draw defrost air from a room with a naturally aspirated appliance, i.e . furnace, hot water heater , gas dr yer , stove, fire place etc. W ARNING Air Handler [...]

18 The Partially Dedicated Installation Defrost air port needs to be drawn fr om clean area without combustion appliances. T o av oid backdrafting of combustion pr oducts, never draw defrost air from a room with a naturally aspirated appliance, i.e . furnace, hot water heater , gas dr yer , stove, fire place etc. W ARNING FIVE PORT MODELS - P ar ti[...]

19 The Fully Dedicated Installation Defrost air port needs to be drawn fr om clean area without combustion appliances. T o av oid backdrafting of combustion pr oducts, never draw defrost air from a room with a naturally aspirated appliance, i.e . furnace, hot water heater , gas dr yer , stove, fire place etc. W ARNING FIVE PORT MODELS - Full y Dedi[...]

Intake Weatherhood Requirements • Should be located upstream (if there are prevailing winds) from the exhaust outlet. • At least 6' (2m) from the exhaust weatherhood. • At least 6' (2m) away from dryer vents and air handler exhaust. • A minimum of 6' (2m) from driveways, oil fill pipes, gas meters, swimming pools or garbage c[...]

21 Electrical The HRV unit should be plugged into a standard designated (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 [...]

22 Red to Red Black to Black Green LED Drive to Green DEH UMI DISTA 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 control Factory install[...]

23 Recirculating Damper Defrost (4 port models) The recirculating damper defrost HRV has an electronically controlled damper defrost mechanism. The defrost timer is activated when the outside temperature drops below 27°F (- 3°C). A motor driven damper door mechanism closes off the supply air from outside allowing the exhaust air to recirculate th[...]

24 It is necessary to have balanced air flow in an HRV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit. If the air flow is not properly balanced, then: • The HRV may not operate at its maximum efficiency • A negative or positive air pressure may occur in the house • The unit may not defrost pr[...]

25 Air Flow Balancing Place pitot tube a minimum of 18" from blower or elbows Note: Duct connections may vary , depending on model. Outdoors MAGNEHELIC Pitot tube Magnehelic gauge M A GN E HELIC Magnehelic gauge Pitot tube Additional dampers may be required Placement of Pitot Tube HRV M AG NEHELIC DUCT AIR FLOW Pitot tube High Pressure Side Lo[...]

26 AccuFlow Gauge Kit 1 - Accu-Flow Balancing Gauge 2 - Connection Hoses 4 - Rubber Fittings 1 - Instruction Page Lifebreath Accu-Flow is designed to quickly and accurately balance the airflows on units equipped with balancing ports. Normally the HRV/ERV would be balanced on high speed. If the HRV/ERV is connected to a forced air system, both syste[...]

27 Air Flow Balancing using the Door Ports Models RNC155 and RNC200 Only The door ports ( MODELS RNC155 & RNC 200) are designed to quickly and measure the airflows for balancing. Normally the HRV would be balanced on high speed. If the HRV is connected to a forced air system, both systems should be set to run at the highest operational speed wh[...]

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

29 Wiring Diagrams Model RNC5-TPD DEFROST DET AILS P1 12 3 4 PIN 1 - RED PIN 2 - ORANGE PIN 3 - BLACK PIN 4 - SP ARE PCB PLUG - IN RED BLACK PLUG IN CONNECTOR BI-DIRECTIONAL DAMPER MO TOR ORANGE RED BLACK ORANGE Model RNC5 (Only) TO MO TORS BLUE RED INTERF ACE RELA Y CONT A CTS[...]

30 Wiring Diagrams RNC120D HRV Control Box DEFROST DET AILS P1 12 3 4 PIN 1 - RED PIN 2 - ORANGE PIN 3 - BLACK PIN 4 - SP ARE PCB PLUG - IN RED BLACK PLUG IN CONNECTOR BI-DIRECTIONAL DAMPER MO TOR ORANGE RED BLACK ORANGE TO MO TORS INTERF ACE RELA Y CONT A CTS BLUE 60-120D-WIRING[...]

31 RNC3WIRINGDIAGRAM HIGHVOLTAGE 12VLOWVOLTAGE FIELDINSTALLED LEGEND 12VLOWVOLTAGE FANMOTORDETAILS CAPACITOR ORANGE WHITE BLACK GREEN DIRECTMOUNTEDCAPACITOR T6 T9 RED YELLOW P1 12 3 4 PIN1-BLACK PIN2-ORANGE PIN3-RED PIN4-SPARE PCBPLUG-IN RED BLACK PLUGIN CONNECTO[...]

32 Troubleshooting Poor Air Flow Supply air feels cold Dehumidistat is not Operating Humidity Levels are too High in Winter Condensation is appearing on the windows Humidity Levels are too Low HRV and / or Ducts Frosting up Condensation or Ice Build Up in Insulated Duct to the Outside Water in the bottom of the HRV 20 Minute Timer Not Working • 1[...]

33 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: Blockage of hoods may cause an imbalance. [...]

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