User manual CONSTRUCTA CWA4V100IL

[. . . ] 1 2 3 4 6 7 Dryer connection options Connections for an exhaust air duct are located on the left hand side panel and at the rear of the dryer. Installation information Exhaust air duct Any products which are commercially available can be used for the exhaust air duct: - flexible tubes - galvanised sheet metal ducts or tubes - connection, transfer and by pass adapters for use in flat duct or tubular ducting systems. - wall boxes for ventilation into the open air or into an air shaft - adapters for rectangular ducts - rectangular ducts or plastic tubes - one way flap All materials must be heat resistant up to 80 °C and humidity resistant. Installation options - Run the exhaust air duct in such a way that the dryer cannot draw in again the moist warm air which has been blown out. - Create or arrange the exhaust exit vent in such a way that there will not be any additional counterpressure for the escaping exhaust air (e. g. [. . . ] via a wall box into the open air: Example: Tube connection - inside diameter = 100 mm, smooth A = straight section (1. 0 m) 4 B = curved pipe (R = 200 mm) 4 C = straight section (1. 5 m) 6 D = tube angle 19 E = telescope wall box with grille 14 Total pressure loss 47 2. Left hand side panel connection Pressure drops The length and type of exhaust air duct used can impede air flow, especially angle joints or elbows with a small radius. -> Diameter reductions and pressure drops (resistances) should be kept to a minimum. The following should be avoided: - long exhaust air ducts - exhaust air ducts with a small cross section - exhaust air ducts with a high number of elbows and angle joints. 1. Remove the cover from the side panel. 2. directly into the open air: Conduct the exhaust air via an exhaust air tube through an open window directly into the open air. Example: Tube connection inside diameter = 100 mm, flexible tube, corrugated A = curved pipe (R = 300 mm) 7 B = straight section (1. 5 m) 18 C = curved pipe (R = 100 mm) 10 D = straight section (0. 5 m) 6 Total pressure loss 41 2. Remove the bayonet ring from the rear panel and attach it to the side panel vent. 3. Close off the rear panel vent with the cover. Pressure drops due to friction Air flow is influenced by frictional resistances in the duct and/or tube, i. e. by friction on the inside of the exhaust air duct, and can be affected in the following ways: - the smoother the internal wall - the larger the diameter of the internal wall - the shorter the tube the lower the frictional resistance. Pressures drops due to fittings Exhaust air is subject to additional resistance from fittings, e. g. from by pass adapters (elbows, bends, angle joints), wall boxes fitted with a grille or a one way flap. 3. via a wall box into a chimney or ventilation shaft - It is not permissible to connect the exhaust air duct to chimneys which are connected to gas ovens, coal fired ovens or cookers, or to gas fired room heating. - If a connection is made to a ventilation shaft which has been insulated against moisture, the chimney sweeper responsible for maintenance must be advised and/or approval must be sought from the local building regulations authority (building inspection authority) or from the house owner. - If additional appliances such as gas heaters, gas fired continuous flow heaters, coal fired ovens with chimney venting or open fireplaces are operated in the room where the dryer is installed or in neighbouring rooms, negative pressure may be created with the result that waste gases are drawn back in again -> risk of poisoning - Confirmation should be sought in any case from the relevant chimney sweeper that operation of the dryer presents no danger. Installation with tube connection inside diameter = 100 mm To ensure the minimum air flow requirement, a specific pressure drop (resistance) must not be exceeded. The total permissible pressure drop for an exhaust air duct must not exceed a specific numerical value. It is calculated from the sum of all the individual pressure drop values taken both from the straight sections and from the fittings in the exhaust air duct. Condensation outlet If water from condensation builds up in the exhaust air duct, it is recommended that a condensation collector (as commercially available) is fitted or that a drain hole of approximately 3 mm in diameter is introduced in the lowest section of the exhaust air duct. The numerical value for the maximum permissible total pressure drop in an exhaust air duct is 50*. Installation with tube connection inside diameter > 100 mm If a tube connection has an inside diameter = 100 mm and a total pressure drop greater than 50*, the inside diameter of the tube connection must be enlarged. [. . . ] - angle 19 22 24 > 50 17 Telescope wall box with grille Wall box with one way flap 14 6 28 13 7 3 Installation instructions Total pressure drop values Total pressure loss 0 50 0 80 0 124 0 186 Tube connection inside diameter Diameter in mm 100 110 120 130 Do not install the exhaust air duct until you have read these instructions. Also observe the separate instruction manual for the exhaust air dryer. Keep all documents for use in the future or for the subsequent owner. 0708 en 9000 170309 6 7 [. . . ]