AVS Constructo 1.5 and 2.0 User Guide (08055 rev. C
Contents
1. winter and spring months METHOD 1 fast and simple for new users a Determine approximately the outside daytime temperature b Set knob B to this temperature NOTE Continue using this method for about a month before trying Method 2 suggested below METHOD 2 more precise adjustment Use METHOD 2 steps a to f below if there is condensation on your windows after using METHOD 1 for at least 1 month As ventilation needs vary from one house to another depending on cooking habits frequency of showers washing window design etc an adjustment based on outside temperature may not adequately solve the condensation problem in your house a Select speed MIN b Turn knob B clockwise until you hear a click c Turn knob B a notch below the click d 12 to 24 hours later check if there is still condensation on the windows e If there is repeat steps b c d above until desired results are obtained f Compare the two values the one obtained with METHOD 1 and the other with METHOD 2 Use the variance for future reference For example if there is a 3 degree variance you can conclude that for your house an adjusment of 3 degrees below the outside temperature is required for optimum condensation control CAUTION Do not select a temperature below 20 C This could lead to excessive dryness in the air causing discomfort for the occupants It is possible and normal to experience condensation on your windows w2. To eliminate excess humidity produced by showers or other periodic activities producing pollutants This control makes the system operate at high speed for periods varying from 10 to 60 minutes MINUTES VC0017 4 MAINTENANCE AN ENS e In order to prevent personal injury turn off the unit and unplug it before performing maintenance When cleaning the unit it is recommended to wear safety glasses and gloves 4 1 REGULAR Air filters The air filters are washable Under normal conditions we recommend to wash them every 3 months Use a vacuum cleaner to remove the heaviest portion of accumulated dust Then wash in water and mild soap Let dry completely before reinstalling them in the unit Heat Recovery Core CAUTION Hot water and a strong detergent will damage the heat recovery core The heat recovery core must be handled with care We recommend to wash it once a year at the end of summer in order to ensure maximum efficiency of the plastic partitions Allow the heat recovery core to soak for 3 hours in a solution of warm water and mild soap Rinse under a heavy stream of water Let dry completely before reinstalling it in the unit NOTE When plugging back the unit it will return to its previous setting after a 30 second delay for boot sequence Intake hood Regularly check the screen in the exterior intake hood and clean when necessary Also check during very cold weather because ice may build up on
3. USER GUIDE Veil are EE AVS MODELS Constructo 1 5 CONSTRUCTO 2 0 READ AND SAVE THESE INSTRUCTIONS This product earned the ENERGY STAR by meeting strict energy efficiency guidelines set 1 4 TRA by Natural Resources Canada and the US EPA 7107237110970 E R It meets ENERGY STAR requirements only when used in Canada 5 NERGY STA 08055 rev C CONGRATULATIONS You have made an excellent choice We have prepared this User Guide especially for you Please read it carefully to ensure you obtain full benefits from your Heat Recovery Ventilator unit About this Guide This guide uses the following symbols to emphasize particular information AN WARNING Identifies an instruction which if not followed might cause serious personal injuries including possibility of death CAUTION Denotes an instruction which if not followed may severely damage the unit and or its components NOTE Indicates supplementary information needed to fully complete an instruction TABLE OF CONTENTS 1 UNIT DESCRIPTION 0 00 cece ee eee eee 3 ALAA SPECIFICATIONS saved cesta teem maanen A a dita anal TTN aroma NNE adava my aunom say ate ace we 3 2 FUNCTION OF THE HEAT RECOVERY VENTILATOR 0 00 cee e ee eee ee 3 2 1 HEAT RECOVERY ii sete cccc cee eee Wa ee eR eee R Ree a ae Oe ae Oo eee ee eae eee ae 3 2 2 DEFROSTING gt a osciee acd caise a aecornereia ua lat eens a car Ml
4. e m ered a Benya acd a ah bcos mug canmvar a a a a ac a aa a ai 3 3 CONTROLS s 64 i00s602 2 036 ceaseaes coke bere be a SI Ae ee eee ee we eee 4 6 3 1 INTEGRATED CONTROL caecianwiateentaateraeee inate daed sd enc ced naan aea a E ne aaa nooo Ene 4 3 1 1 BOOT SEQUENCE io ici ic ceccerici ae ts eer ete eee eee ware ee ee ke ete GU eee ai 4 3 2 OPTIONAL MAIN WALL CONTROLS 000cccee ce new anne acces ee seneonenea nese eee en nen E ERa 4 3 2 1 LITE TOUCH CONSTRUCTO 0c cece ee eee ee eee eee eee eee eee eee e ee eeeeees 4 3 2 2 CONSTRUCTO sida cies teed ieee ween a enna wes daw EA wad eae we Eee eae 5 3 3 OPTIONAL AUXILIARY CONTROLS 000 c cece eee e eee eee ee eee eee eee eee eee eeeeee 6 3 3 1 DEHUMIDISTAT ieie isionricsnrics trat ere Searels ward oe WS PEA Ewa Aenea ema Oe eden dane 6 3 3 2 20 MINUTE LIGHTED PUSH BUTTON 0 0c eect eee eee eee eee eee eee 6 3 3 3 60 MINUTE MECHANICAL TIMER ccc cece eee eee eee eee eee 6 4 MAINTENANCE 00 00 cece ee eee eee eee 7 4 1 REGULAR sgp inara ciate nia aan A a a E wane avecaneCer E Sie 2 ae areca eee ar eae aie 7 4 2 PROLONGED 6 66 5 due wisi era sh eeaiesk leas beatae seat ane ata bhiyw BB ah Sena weed EEEE EE Wha TE E 7 5 TROUBLESHOOTING ccc cee eee eee eee 8 CAUTION Some activities create dust or vapors which may damage your unit You must therefore turn off and unplug your unit in the following situations e major renovation work housing co
5. ent Select this mode when you are away from the house for a few days Also when you deem the inside air is too dry in heating season or too humid in cooling season In this mode the unit is OFF for 40 minutes per hour and ventilates at minimum speed the remaining 20 minutes of the hour Yellow Min Speed For normal daily operation Ventilation Red Max Speed For excess pollutants and humidity parties odors smoke etc Ventilation VC0075 3 CONTROLS conT p 3 2 OPTIONAL MAIN WALL CONTROLS conT D 3 2 2 CONSTRUCTO Location Located in the busiest area of the house Purpose To adjust air supply and select desired indoor humidity level OFF MIN MAX Adjusting the AIR SUPPLY CONTROL a Select speed MIN or MAX using switch A as shown on diagram e Select speed MIN minimum speed for normal daily operation 24 hours a day all year round e Select MAX maximum speed for excess pollutants and humidity parties odors smoke etc b To turn the unit off place selector at the OFF position However if optional auxiliary controls are used they will still be active AV Adjusting the HUMIDITY CONTROL Setting during the summer months vcooss Normally there is no condensation on your windows during this period which therefore eliminates the need of the humidity control Set knob B to SUMMER position during this period Setting during the fall
6. hen drastic changes in temperature occur e g 5 C 23 F to 20 C 4 F In that case we suggest waiting a few days to allow the situation to stabilize 3 CONTROLS conT p 3 3 OPTIONAL AUXILIARY CONTROLS 3 3 1 Dehumidistat Location Located in the bathroom or in other locations where there is temporary humidity excess Purpose To eliminate excess humidity produced by showers or other periodic activities producing humidity In the fall winter and spring Adjust knob to the desired humidity level CAUTION Do not select a humidity level below 30 This could lead to excessive dryness in the air causing discomfort for the occupants yx xEMMAR In summer Set knob to the SUMMER position VC0009 3 3 2 20 Minute Lighted Push Button Location Located in the bathroom or in other locations where there is temporary humidity excess or pollutants Purpose To eliminate excess humidity produced by showers or other periodic activities producing pollutants Press once to activate the push button The unit will operate on high speed for 20 minutes and the indicator will light up To stop activation before the end of the 20 minute cycle push one more time The unit will get back to its previous setting VC0082 3 3 3 60 Minute Crank timer Location Located in the bathroom or in other locations where there is temporary humidity excess or pollutants Purpose
7. nstruction e sanding e g gypsum joints etc varnishing During heavy snow storms turn off the unit to avoid problems caused by snow penetration even if it is equipped with anti gust intake hood Power disturbances or very short power failures may cause the electronic control microprocessor to malfunction If it does disconnect the power plug from the outlet and wait approximately 30 seconds then plug it back in to resume operation 1 Unit DESCRIPTION 1 Filters 2 Blowers 3 Condensation tray 4 Heat recovery core 1 1 SPECIFICATIONS MopEL Constructo 1 5 ConsTRUCTO 2 0 WIDTH 30 768 mm 3014 768 mm HEIGHT 16 419 um 16 419 mm DEPTH 17 438 um 17 438 mm WEIGHT 66 LB 30 KG 68 LB 30 ka ELECTRICAL SUPPLY 120 V 60 Hz 120 V 60 Hz Power CONSUMPTION 150 W 240 W 2 FUNCTION OF THE HEAT RECOVERY VENTILATOR Your ventilation system will help eliminate poor air quality problems by drawing the stale and humid air out of the house and replacing it with fresh outside air By eliminating accumulated pollutants and humidity it maintains an optimum air quality and an ideal relative humidity during cold season The unit is also equipped with a heat recovery core which reduces ventilation costs in winter Shown with a forced air heating system can also operate on its own VH0006 2 1 HEAT RECOVERY Example in winter Exhaust air
8. parts are specially designed for each unit and are manufactured to comply with all the applicable certification standards and maintain a high standard of safety Any third party replacement part used may cause serious damage and drastically reduce the performance level of your unit which will result in premature failing Also Venmar Ventilation Inc recommends to contact a certified service depot for all replacement parts and repairs
9. rated control LED 2 will blink The color of the blinking light depends on the type of error detected Refer to Section 5 Troubleshooting on last page for further details 3 1 1 BOOT SEQUENCE The unit boot sequence is similar to a personnal computer boot sequence Each time the unit is plugged after being unplugged or after a power failure the unit will perform a 30 second booting sequence before starting to operate During the booting sequence the integrated control LED will light GREEN or AMBER for 5 seconds and then will shut off for 2 seconds After that the LED will light RED for the rest of the booting sequence During this RED light phase the unit is checking and resetting the motorized damper position Once the motorized damper position completely set the RED light turns off and the booting sequence is done NOTE No command will be taken until the unit is fully booted 3 2 OPTIONAL Main WALL CONTROLS For more convenience this unit can also be controlled using an optional main wall control NOTES 1 The integrated control must be turned OFF to use an optional main control 2 lf an optional auxiliary control is used if activated this auxiliary control will override the optional main control 3 2 1 LITE TOUCH CONSTRUCTO Location Located in the busiest area of the house Purpose To adjust air supply Activate the push button The color of the indicator shows the unit operating mode Color Mode Suggested Use Green Intermitt
10. t blocked supply grille e Operate the unit at low speed MIN or in intermittent mode with Lite Touch Constructo e Have the system s balancing checked e Have the units defrosting system checked e Install a duct heater 5 The LED of the integrated e ia control is blinking red There is a problem with the motor The unit is OFF Contact your installer The LED on the integrated e There is a problem with the thermistor The unit is still working but is always in defrost control is blinking green mode Contact your installer 7 The LED on the integrated e There is a problem with the motorized damper The unit is OFF For a 12 hour period control is blinking amber the unit will try to reset the damper at every 20 to 30 minutes After 12 hours if the problem is not solved the unit stops trying to reset damper Contact your installer The integrated control push button does not work e The 30 second boot sequence is not completed See integrated control on page 4 If the problem continues contact your installer at the phone number and address listed below or call the following number for authorized service center nearest you e 1 800 567 3855 CANADA AND U S A YOUR INSTALLER S ADDRESS REPLACEMENT PARTS AND REPAIR In order to ensure your ventilation unit remains in good working condition you must use Venmar Ventilation Inc genuine replacement parts only The Venmar Ventilation Inc genuine replacement
11. the screen located in the exterior intake hood Motor The motor is factory lubricated for life Do not oil bushings 4 2 PROLONGED Annual service should include Cleaning filters heat recovery core and the exterior intake hood Cleaning the blades of the blower wheels Cleaning the condensation tray with soapy water make sure that the drain is not clogged NOTE Ask your installer for an annual service contract 5 TROUBLESHOOTING If you think your unit is malfunctioning check some of the following TYPE OF PROBLEM TRY THIS 1 Nothing works e See if the unit is plugged in e See if the breaker is receiving power from the house circuit breaker 2 Condensation on windows e Adjust the humidity control knob as per instructions see Section 3 air too humid e Operate the unit at maximum speed MAX during activities generating excess humidity family gatherings extra cooking etc e Leave curtains half open to allow air circulation e Store all firewood in a closed room with a dehumidifier or in a well ventilated room or store the wood outside e Do not adjust the thermostat of your heating system below 18 C 64 F Air too dry e Do not adjust your humidity control below 20 C 4 F e Operate the unit at low speed MIN or in intermittent mode with Lite Touch Constructo e Temporarily use a humidifier 4 Air too cold at the air e Make sure the stale air exhaust hood outside the house is no
12. to outside Units equipped with a heat recovery core can reduce 6 C 43 F ventilation costs in winter The unit draws the heat from the stale air and humid air before it is released and uses it to heat the air coming in from outside The recovery core is designed in such a way that the stale air is never mixed with the fresh air Fresh air to building 16 C 61 F Fresh air from outside 0 C 32 F Exhaust air from building 22 C 72 F VF0026 2 2 DEFROSTING When the outside temperature is below 5 C 23 F heat recovery creates frost in the core To maintain its proper operation the unit is programmed to defrost the recovery core The defrosting frequency varies according to outside temperature Defrosting lasts 7 or 10 minutes according to outside temperature During the defrost cycle the unit shifts to maximum speed and the dampers close After defrosting the unit returns to the operating mode previously selected by the user 3 CONTROLS 3 1 INTEGRATED CONTROL cl o o o o o o o mmj mmj All units are equipped with an integrated control located in front of the electrical compartment Use the push button 1 to control the unit The LED 2 will then shows on which mode the unit is in Refer to table below to see how to operate the unit using its integrated control PRESS ON PUSH BUTTON LED CoLor RESULTS UNIT IS ON Low SPEED UNT 1s OFF If a problem occurs during the unit operation its integ
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