Lifebreath 700ERV, 850FD/DD, 500ERV, 1200ERV, 1200FD/DD, 700FD/DD, 500DCS Symptom Cause Solution

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SYMPTOM

CAUSE

• SOLUTION

Poor Air Flows

• 1/4” (6 mm) mesh on the outside hoods is plugged

• clean exterior hoods or vents

 

• filters plugged

• remove and clean filter

 

• core obstructed

• remove and clean core

 

• house grilles closed or blocked

• check and open grilles

 

• dampers are closed if installed

• open and adjust dampers

 

• poor power supply at site

• have electrician check supply voltage at house

 

• ductwork is restricting HRV/ERV

check duct installation

 

• improper speed control setting

• increase the speed of the HRV/ERV

 

• HRV/ERV airflow improperly balanced

• have contractor balance HRV/ERV

 

 

 

Supply air feels cold

• poor location of supply grilles, the airflow may irritate

• locate the grilles high on the walls or under the baseboards,

 

the occupant

install ceiling mounted diffuser or grilles so as not to directly

 

 

spill the supply air on the occupant (eg. over a sofa)

 

• outdoor temperature extremely cold

• turn down the HRV/ERV supply speed. A small duct heater

 

 

(1kw) could be used to temper the supply air

 

 

• placement of furniture or closed doors is restricting the

 

 

movement of air in the home

 

 

• if supply air is ducted into furnace return, the furnace fan

 

 

may need to run continuously to distribute ventilation

 

 

air comfortably

 

 

 

Dehumidistat is not Operating

• improper low voltage connection

• check that the correct terminals have been used

 

• external low voltage is shortened out by a staple or nail

• check external wiring for a short

 

• check dehumidistat setting it may be on OFF

• set the dehumidistat at the desired setting

 

 

 

Humidity Levels are too High

• dehumidistat is set too high

• set dehumidistat lower

Condensation is appearing on the windows

• HRV/ERV is undersized to handle a hot tub, indoor pool, etc.

• cover pools, hot tubs when they are not in use

 

• lifestyle of the occupants

• avoid hanging clothes to dry, storing wood and venting clothes

 

 

dryer inside. Heating wood may have to be moved outside

 

• moisture coming into the home from an unvented or

• vent crawl space and place a vapour barrier on the floor

 

unheated crawl space

of the crawl space

 

• moisture is remaining in the washroom and kitchen areas

• ducts from the washroom should be sized to remove moist

 

 

air as effectively as possible, use of a bathroom fan for

 

 

short periods will remove additional moisture

 

• condensation seems to form in the spring and fall

• on humid days, as the seasons change, some condensation

 

 

may appear but the homes air quality will remain high with

 

 

some HRV/ERV use

 

• HRV/ERV is set at too low a speed

• increase speed of the HRV/ERV

 

 

 

Humidity Levels are too Low

• dehumidistat control set too low

• set dehumidistat higher

 

• blower speed of HRV/ERV is too high

• decrease HRV/ERV blower speed

 

• lifestyle of occupants

• humidity may have to be added through the use of humidifiers

 

• HRV/ERV air flows may be improperly balanced

• have a contractor balance HRV/ERV airflows

 

 

 

HRV/ERV and / or Ducts Frosting up

 

• Note: minimal frost build-up is expected on cores before

 

 

unit initiates defrost cycle functions

 

• HRV/ERV air flows are improperly balanced

• have HVAC contractor balance the HRV/ERV

 

• malfunction of the HRV/ERV defrost system

• using the self-test feature at the Base Module, press the fan

 

 

control symbol, the damper defrost unit should cycle its full

 

 

travel when working properly.

 

 

 

Condensation or Ice Build Up in Insulated Duct to

• incomplete vapour barrier around insulated duct

• tape and seal all joints

the Outside

• a hole or tear in outer duct covering

• tape any holes or tears made in the outer duct covering

 

 

• ensure that the vapour barrier is completely sealed

 

 

 

Water in the bottom of the HRV/ERV

• drain pans plugged

• ensure O-Ring on drain nozzle sits properly

 

• improper connection of HRV/ERVs drain lines

• look for kinks in line

 

• HRV/ERV is not level

• check water drain connections

 

• drain lines are obstructed

• make sure water drains properly from pan

 

• HRV/ERV heat exchange core is not properly installed

 

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Contents Operation Installation Manual Introduction What is the difference between an HRV and an ERV? ERV Questions & AnswersPage Selecting the Correct Size HRV/ERV Commercial and Institutional RequirementsSpecifications Model 500DCSModel 850FD/DD Airflows Each Air StreamModel 700FD/DD CoresDimensions Model 1200FD/DDLatent Recovery Moisture Transfer Cores Model 500ERVModel 700ERV High Speed MED Speed LOW SpeedModel 1200ERV PerformanceLocation for Mounting Ductwork SystemOutside Weatherhoods Stale Air Return SystemFresh Air Supply System Integrated Hvac SystemIntegrated Hvac System Example only Duct connections not typicalVarious Installation Types Galvanized duct workElectrical Connections Self Test of Defrost SystemsOptional Remote Controls Model 700, 850 and 1200 HRV/ERV onlyControlAir Optional Remote Controls Model 500 Only NEW! AIR Sentry AIR Quality SensorFunction & Control Model 500 Only Operating the ControlAirTo select mode of operation for ControlAir Model 500 OnlyPitot Tube AIR Flow Balancing SERVICE/MAINTENANCE General Maintenance FiltersSymptom Cause Solution Wiring Diagram Damper Defrost FAN Defrost Damper Defrost Commercial Lifebreath HEAT/ENERGY Recovery Ventilators McCormick Blvd. London, Ontario N5W 4C8

700ERV, 700FD/DD, 1200ERV, 500DCS, 1200FD/DD specifications

Lifebreath offers a range of residential ventilation solutions designed to ensure optimal indoor air quality with the Lifebreath 1200FD/DD, 500ERV, 850FD/DD, 700FD/DD, and 500DCS models. These systems are engineered for energy efficiency, user comfort, and advanced air management technologies.

The Lifebreath 1200FD/DD is a robust energy recovery ventilator suitable for larger homes. Its main feature is the dual-core technology that maximizes heat and energy recovery while ensuring fresh air supply. The built-in filter system removes airborne pollutants, enhancing indoor air quality. Users can enjoy a balanced airflow with an easy-to-use control interface, making it ideal for modern living.

The Lifebreath 500ERV is designed for smaller spaces, offering energy recovery ventilation with a compact footprint. Its efficient design extracts stale air while simultaneously introducing filtered fresh air. The ERV technology helps manage humidity levels, providing a stable indoor environment, particularly beneficial in varying climates. This model emphasizes quiet operation, ensuring minimal disruption in residential areas.

The Lifebreath 850FD/DD combines versatility and efficiency, featuring flexible ducting options and a powerful fan system. Its dual-core structure allows improved heat recovery, promoting energy conservation. This model is ideal for medium-sized homes where balancing airflow is crucial for comfort.

Next, the Lifebreath 700FD/DD stands out for its advanced filtration and heat recovery capabilities. This unit is equipped with a high-efficiency filter that captures a wide range of airborne particles, ensuring the air quality meets modern health standards. Its sleek design and quiet operation make it a popular choice among homeowners.

Finally, the Lifebreath 500DCS model is tailored for decentralized ventilation needs. It features a compact design that can be installed in various settings, allowing for flexibility in air management. The DCS technology ensures optimal performance with minimal energy consumption, making it an eco-friendly choice.

Overall, Lifebreath offers innovative solutions that cater to diverse residential ventilation needs. The integration of advanced technologies across their models ensures optimal air quality, energy efficiency, and user comfort, making them an excellent choice for health-conscious homeowners.
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