User Manual - Venmar and Lessco Dealer,
Contents
1. Operating the unit model CONSTRUCTO 1 5 AND 2 0 yY E nN M A re USER MANUAL Read and save these instructions 17 11 03 03346 TABLE OF CONTENTS CONGRATULATIONS You have made an excellent choice We have prepared this Operating Guide especially for you Read it carefully to ensure you obtain full benefit from your Heat Recovery Ventilator unit A DESCRIPTION OF UNIT 2 00 eee 3 B FUNCTION OF THE HEAT RECOVERY VENTILATOR 3 G CONTROL occvaea ccna ees eee eee ema eie 4 D OPTIONAL CONTROLS 0 cee eee eee eee 5 E MAINTENANCE jaca 23 toca na tee deteu fee snemenese 6 F TROUBLESHOOTING 2 0c cece eee teens 8 WARNING 1 Some activities creats 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 e housing construction e sanding e g gypsum joints etc e varnishing 2 During very heavy snow storms the unit should also be turned off to avoid problems caused by snow entering the unit even if it is equipped with anti gust intake hood 3 During maintenance and repairs the unit must always be turned off then unplugged 4 Power disturbances or very short power failures may cause the electronic control microproces sor 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 A DESCRIPTION OF UNIT 1 Filters2. check some of the following TYPE OF PROBLEM TRY THIS 1 Nothing works See if the unit is plugged in See if the unit is receiving power from the house circuit breaker 2 Condensation on windows Adjust the humidity control knob as per instructions see air too humid section D Operate the unit at maximum speed MAX during activities generating excess humidity family gatherings extra cooking etc Leave curtains half open to allow air circulation Store all firewood in a close room with a dehumidifier or in a well ventilated room or store the wood outside Do not adjust the thermostat of your heating system below 18 C 64 F 3 Air too dry Do not adjust your humidity control below 20 C 4 F Operate the unit at low speed MIN Temporarily use a humidifier 4 Air too cold at the air supply grille Make sure the stale air exhaust hood outside the house is not blocked Operate the unit at low speed MIN Have the system s balancing checked Have the unit s defrosting system checked Install a duct heater If the problem continues contact your installer at the telephone number and address indicated below or call one of the following numbers for authorized service centre nearest you e 1 800 567 3855 Canada and U S A e 1 819 477 6226 International ADDRESS OF YOUR INSTALLER
3. 2 Fans 3 Condensation tray 4 Heat recovery core SPECIFICATIONS Constructo 1 5 Constructo 2 0 nowaneres E 120 Volts 60 Hz 120 Volts 60 Hz a a 100 Volts 50 60 Hz 100 Volts 50 60 Hz 230 240 Volts 50 Hz 230 240 Volts 50 Hz Your ventilation system will help to 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 humidi ty it maintains an optimum air quali ty and an ideal relative humidity The unit is also equipped with a heat recovery core which reduces venti lation costs in winter Shown with a forced air heating system can also operate on its own B FUNCTION OF THE HEAT RECOVERY VENTILA HEAT RECOVERY Units equipped with a heat recovery core can reduce ventilation costs in winter The unit draws the heat from the stale 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 Example in winter Exhaust air to outside 6 C 43 F Fresh air to building 16 C 61 F Fresh air from outside 0 C 32 F Exhaust air from building 22 C 72 F DEFROSTING When the outside temperature is below 5 C 23 F heat recovery creates frost in the core To main tain its proper operation the unit is programmed to defrost the recovery core The defrosting fre qu
4. ency varies according to outside temperature Defrosting lasts 6 minutes or 10 minutes if set on Extended Defrost During the defrost cycle the unit shifts to maximum speed and the dampers close After defrosting the unit returns to the operating mode selected by the user C CONTROL 3 POSITION SWITCH Location Located on the side of unit Purpose To adjust air supply and reduce condensation on windows How to operate the unit on a daily basis Select LOW or HIGH speed e Select LOW SPEED for normal daily operation e Select HIGH SPEED for excess pollutants and humidity parties odors smoke etc How to turn the unit off Push switch to the REMOTE position N B Optional controls can still activate the unit even when it is in the REMOTE position You must therefore unplug the unit to be absolutely sure it is off D OPTIONAL CONTROLS D 1 CONSTRUCTO CONTROL Important To operate your system with this control the 3 position switch located on the side of the unit must be set to REMOTE position Location Located in the busiest area of the house Purpose To adjust air supply and select desired indoor humidity level Adjusting the AIR SUPPLY CONTROL a Select speed MIN or MAX using switch A as shown on diagram e Select MIN minimum speed for normal daily operation 24 hours a day all year round e Select MAX maximum speed f
5. or excess pollutants and humidity parties odors smoke etc b To turn the unit off place selector at the OFF position Optional controls however may still be active Adjusting the HUMIDITY CONTROL Setting during the summer months Normally there is no condensation on your windows during this period which therefore eliminates the need of the humidity control Set knob B at the SUMMER position during this period Setting during the fall winter and spring months e METHOD 1 fast and simple for new users a Determine approximately the outside daytime temperature b Set knob B to this temperature Continue using this method for about a month before trying method 2 suggested below e 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 a month As ventilation needs vary from one house to another depend ing on cooking habits frequency of showers washing window construction etc an adjustment based on outside temperature may not adequately solve the condensation problem in your house a Select MIN b Turn knob B clockwise until you hear a click c Turn knob B a notch below the click d Twelve 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 D OPTIONAL CONTROLS continued f Compare the 2 val
6. ues that obtained with METHOD 1 and that obtained 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 adjustment of 3 degrees below the outside temperature is required for optimum condensation control WARNING Do not select a temperature below 20 C This could lead to excessive dryness in the air causing discomfort for the occupants D 2 DEHUMIDISTAT Location Located in the bathroom or in other locations where there is temporary excess humidity Purpose To eliminate excess humidity produced by showers or other periodic activities producing humidity In the fall winter and spring b Adjust knob to the desired maximum humidity level YAO ees WARNING Do not select a humidity level below 30 This could lead to excessive dryness in the air causing discomfort for the occupants In the summer Adjust knob to the SUMMER position D 3 TIMERS Location Located in the bathroom or in other locations where there is temporary excess humidi ty or pollutants Purpose To eliminate excess humidity produced by showers or other periodic activities produc ing pollutants e 20 minutes push button timer Set the push button to ON The fan motor will then operate at high speed for 20 minutes and the indicator will light up To stop activation push on time the unit will then get back to previous selection e 60 min
7. utes timer This control makes the system operate at high speed for periods varying from 10 to 60 minutes E MAINTENANCE E 1 REGULAR Air filters The air filters are washable Under normal conditions we recommend that they be washed every 3 months Use a vacuum cleaner to remove the heaviest portion of accumulated dust Then wash in water and mild soap 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 insure 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 IMPORTANT NOTE Hot water and a strong detergent will damage the heat recovery core Intake hood Regularly check the screen on the exterior intake hood and clean when necessary Also check dur ing very cold weather because ice may build up on the screen located at the exterior intake hoods Motor The motors are factory lubricated for life Do not oil bushings E 2 PROLONGED Annual service should include 1 Cleaning filters heat recovery core and the exterior air intake hood 2 Cleaning the blades of the blower wheels 3 Cleaning the condensation tray with soapy water make certain that the drain is not clogged NOTE Ask your intaller for an annual service contract F TROUBLESHOOTING If you think you unit is malfunctioning
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