Lifebreath 120ERV Instalation Instructions

Lifebreath 120ERV Instalation Instructions

Heat recovery ventilator
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Shipping and Packing List
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

Required Tools

Installation Tools
tin snips
assorted screw drivers
electric drill
hammer
wire strippers
knife
caulking gun
smoke pencil
Balancing Tools
Pitot Tube Balancing Kit
[Case, 8 ft. vinyl tubing, Pitot tube,
magnehelic gauge (0 - 0.25"), and
mounting plate]
or
Pitot Tube with instructions
and Digital Manometer (with resolution of
0 - 0.25" - must read to 1/100ths of an inch)
Optional Accessories
20 Minute Fan Timer
Wall Mounted Dehumidistat
Weather hood Kit
Round Diffuser
4" (100mm)
5" (125mm)
6" (150mm)
8" (200mm)
Kitchen Grille
- may be required by code for kitchen applications
- contains removable grease filter
Models RNC120F/120ERV
large zip ties
fabric flexible duct
- class I I rated
mastic tape
alum. foil duct tape
zip ties
1
/
" I.D. drain hose
2

Application

Heat Recovery Ventilators (HRV) are designed to provide
fresh air while exhausting an equal amount of stale air.
The HRV is equipped with an aluminum core. The device
uses the stale air that is being exhausted to condition the
fresh air as it is being brought in.

General

These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
who have jurisdiction before installation.

Table of Contents

Shipping and Packaging List ......................................1
Required Tools............................................................1
Application ..................................................................1
General .......................................................................1
Engineering Data .....................................................2-5
Installation Instructions ...............................................6
Clearances & Requirements .......................................7
Installation..............................................................7-10
Application Illustrations ........................................11-16
Remote Control Devices ...........................................17
Wiring the Controls ...................................................18
Electrical ..................................................................19
Operation ..................................................................20
Wiring Diagrams .......................................................21
Interlocking HRV to Furnace.....................................22
Air Flow Balancing ...............................................24-25
Troubleshooting ........................................................26
Maintenance ............................................................27
* LEAVE FOR HOMEOWNER
NOTE: Due to ongoing research and product development, specifications,
ratings and dimensions are subject to change without notice.
TI-CCU-001
0108

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Summary of Contents for Lifebreath 120ERV

  • Page 1: Table Of Contents

    • Kitchen Grille - may be required by code for kitchen applications - contains removable grease filter Models RNC120F/120ERV Application Heat Recovery Ventilators (HRV) are designed to provide fresh air while exhausting an equal amount of stale air. The HRV is equipped with an aluminum core. The device uses the stale air that is being exhausted to condition the fresh air as it is being brought in.
  • Page 2: Engineering Data

    Engineering Data THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE The cross-flow heat recovery core transfers heat between the two airstreams. It is easily removed for cleaning or service. MOTORS AND BLOWERS Each Air stream has an independent motorized impeller. 3 speed operation 120VAC FILTERS Washable air filters in exhaust and supply air streams.
  • Page 3 Engineering Data Option 1 - Standard Duct Configuration TOP VIEW EXHAUST AIR FROM BUILDING FRESH AIR FROM OUTSIDE 19” ALL DUCT CONNECTION COLLARS ARE 5" DIAMETER Option 2 - Reverse Duct Configuration TOP VIEW FRESH AIR FROM OUTSIDE EXHAUST AIR FROM BUILDING 19”...
  • Page 4 All Duct Collars are 5" diameter (127 mm) SERVICE CLEARANCE FROM Contractor: __________________________________________ Supplier:____________________________________________ Quote#: ____________________________________________ Submitted by: ________________________________________ Model 120ERV Performance Net supply air flow in cfm (L/s) against external static pressure E.S.P (external static pressure) [cfm (L/s)] @ 0.1" (25 Pa) 113 (53) @ 0.2"...
  • Page 5: Engineering Data

    FROM OUTSIDE EXHAUST AIR EXHAUST AIR TO OUTSIDE FROM BUILDING FRESH AIR TO BUILDING SERVICE CLEARANCE FROM BOTTOM OF UNIT IS MINIMUM 3'0" Model 120ERV HANGING STRAPS PLUG-IN CONNECTOR FOR CONNECTING TO REMOTE ELECTRICAL FRESH AIR TO BUILDING EXHAUST AIR...
  • Page 6: Installation Instructions

    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 FRESH AIR FROM OUTSIDE EXHAUST AIR FROM BUILDING...
  • Page 7: Clearances & Requirements

    Clearances and Requirements WARNING Before installation, careful consideration must be given to how this system will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace or air handler, operating at a higher static. After installation, the compatibility of the two pieces of equipment must be confirmed, by measuring the air flows of the ventilator, by using the balancing procedure...
  • Page 8: Weatherhood Installation

    Installation CAUTION Unit must be installed level to ensure proper condensate drainage. Due to the broad range of installation operational consideration must be given for the possibility of condensation forming on the unit or connecting ducting. Objects below the installation may be exposed to condensate. When installing the weather hood, its outside perimeter must be sealed with exterior caulking.
  • Page 9 Installation 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.
  • Page 10 Installation 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.
  • Page 11: Application Illustrations

    Application Illustrations Partially Dedicated System for HRV Stale air drawn from key areas of home (bathroom, kitchen, laundry) Fresh air supplied to return air duct of air handler DIRECT CONNECTION of the SUPPLY AIR STREAM to the AIR HANDLER COLD AIR RETURN Outdoors Exhaust Air to Outside STALE AIR from various parts of home.
  • Page 12 Application Illustrations Simplified Installation for HRV (Return/Return Method) It is mandatory that the air handler blower • run continuously or HRV operation be interlocked with the air handler blower. Check local codes/authority having • jurisdiction for acceptance. DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and EXHAUST AIR STREAM to the AIR HANDLER COLD AIR RETURN Outdoors Exhaust Air to Outside...
  • Page 13 Application Illustrations Fully Dedicated System for HRV Stale air drawn from key areas of ● home (bathroom, kitchen, laundry) ● Fresh air supplied to main living areas of home Outdoors STALE AIR from various parts of home. i.e. bathrooms (if required), kitchens (if required).
  • Page 14 Application Illustrations Partially Dedicated System for HRV Stale air drawn from key areas of home (bathroom, kitchen, laundry) Fresh air supplied to return air duct of air handler DIRECT CONNECTION of the SUPPLY AIR STREAM to the AIR HANDLER COLD AIR RETURN Outdoors Exhaust Air to Outside Fresh Air From Outside...
  • Page 15 Application Illustrations Simplified Installation for HRV (Return/Return Method) It is mandatory that the air handler blower run continuously or HRV operation be interlocked with the air handler blower. Check local codes/authority having jurisdiction for acceptance. DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and EXHAUST AIR STREAM to the AIR HANDLER COLD AIR RETURN Outdoors Exhaust Air to Outside...
  • Page 16 Application Illustrations Fully Dedicated System for HRV Stale air drawn from key areas of ● home (bathroom, kitchen, laundry) Fresh air supplied to main living ● areas of home Outdoors Fresh Air From Outside STALE AIR from various parts of home. i.e.
  • Page 17: Remote Control Devices

    Remote Control Devices Optional Main Controls The amount of ventilation required in your home will fluctuate according to the activity level in the house. Higher activity levels require more ventilation. Main controls can be mounted in a central location of the home (i.e.
  • Page 18: Wiring The Controls

    Wiring the Controls Dehumidistat Ventilation Control Part No. 99-116 Red to Red Remove factory Orange to Orange installed jumper when Black to Black installing this control Circuit Board Terminal Strip Remote Dehumidistat Part No. 99-130W Red to Red Factory installed jumper Black to Black Circuit Board...
  • Page 19: Electrical

    Electrical 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.
  • Page 20: Operation

    Operation Self Test 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 much ventilation do I need? During seasons when your windows and doors are closed (winter and summer if air conditioned) the HRV should operate continuously when the dwelling is occupied, and either continuously or intermittently when not occupied.
  • Page 21: Wiring Diagrams

    Wiring Diagrams HRV CONTROL BOX FAN A FAN B FAN A FAN B...
  • Page 22: Interlocking Hrv Operation To An Airhandler/Furnace Blower

    Interlocking HRV Operation to an Airhandler/Furnace Blower When using the Interface relay contacts to initiate blower operation on a fur- nace, certain thermostats will initiate the outdoor cooling condenser when R and G are closed. Use this wiring configuration to prevent the Interface relay contacts from initializing the condenser unit.
  • Page 23 Dehumidistat Operation (HRV only) The optional HRV remote controls include a dehumidistat which controls humidity levels during the heating season. The control has a selector knob with set points ranging from 20% to 80% relative humidity (RH). Most people are comfortable when indoor relative humidity levels are in a range from 30 to 45%.
  • Page 24: Air Flow Balancing

    Air Flow Balancing 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: •...
  • Page 25: Air Flow Balancing

    Air Flow Balancing Pitot Tube and Gauge FLOW Pitot tube High Pressure Side Placement of Pitot Tube HRV DUCT Magnehelic gauge Low Pressure Side NOTE: Graphic is for illustrative purposes only. Duct connection ports may vary. NOTE: Apply use of balancing dampers as required. Pitot Tube Air Flow Balancing Kit with magnehelic gauge,...
  • Page 26: Troubleshooting

    Troubleshooting Symptom Cause • 1/4” (6mm) mesh on the outside hoods is plugged Poor Air Flow • filters plugged • core obstructed • house grilles closed or blocked • dampers are closed if installed • poor power supply at site •...
  • Page 27: Maintenance

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

This manual is also suitable for:

Rnc120fRnc120erv

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