Fantech SH 704 Installation, Operation And Maintenance Manual

Also see for SE704: Installation, operation and maintenance manual

Contents

Fantech SH 704 Installation, Operation And Maintenance Manual Manual pdf 15 page image

15TroubleshootingProblem Causes SolutionsAir is too dry Insufficient water vapour generated Install humidifierAir is too humid Sudden increase in humidity by cooking or bathing Ventilate at the source of the problem using a HRV or additional fanSudden change in temperature Wait until outside temperature stabilizes (winter). Heating will also improvesituation.Storing too much wood for heating Store a majority of your wood outside. Even dried, a cord of wood containsmore than 20 gallons of water.Dryer vent exhaust is inside home Arrange outside vent for dryer.Poor air circulation near windows Open curtains or blinds. Bay or bow windows may require mechanical method.HRV not operating (during winter) Check power to the unitPersistent condensationon windowPoor air circulation near windows Open curtains or blinds. Bay or bow windows may require mechanical method.Poor Air Flows 1/4" (6mm) mesh on the outside hoods is plugged Clean exterior hoods or ventsFilters plugged Remove and clean filterCore obstructed Remove and clean coreIndoor grilles closed or blocked Check and open grillesDampers are closed (if installed) Have electrician check supply voltagePoor power supply at site Check duct installationDuctwork is restricting HRV/ERVSupply air feels cold Poor location of supply grilles, the airflow may irritatethe occupantLocate the grilles high on the walls or under the baseboards, install ceilingmounted diffuser or grilles so as not to directly spill the supply air on the oc-cupant (eg. Over a sofa)Use superior grilles such as Fantech CG grille A small duct heater (1kw)could be used to temper the supply airPlacement of furniture or closed doors is restricting the movement of air inthe homeOutdoor temperature extremely cold If supply air is ducted into furnace return, the furnace fan may need to runcontinuously to distribute ventilation air comfortablyHRV / ERV and / or Ducts FrostingupHRV/ERV air flows are improperly balanced Have HVAC contractor balance the HRV/ERV airflowsMalfunction of the HRV defrost system Note: minimal frost build-up is expected on cores before unit initiates defrostcycle functionsOutdoor temp. extremely cold Install duct heaterCondensation or Ice Build Up inInsulated Duct to the OutsideIncomplete vapour barrier around insulated duct Tape and seal all jointsA hole or tear in outer duct covering Tape any holes or tears made in the outer duct coveringEnsure that the vapour barrier is completely sealed.Condensation or Ice Build Up inInsulated Duct to the OutsideIncomplete vapour barrier aroundinsulated ductA hole or tear in outer duct coveringTape and seal all jointsTape any holes or tears made in the outer duct coveringEnsure that the vapour barrier is completely sealed.