CNVA
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TECHNICAL DOCUMENTATION SCHAKO | Ferdinand Schad KG Steigstraße 25-27 D-78600 Kolbingen

TECHNICAL DOCUMENTATION General description | Advantages/Customer benefits | Operation GENERAL DESCRIPTION The SCHAKO floor convectors CNVA as decentralised airconditioners enable energy-efficient and comfortable airconditioning of offices, public buildings, sales rooms and living spaces. The room air (1) to be air-conditioned is taken into the convector by the fan (4) via the slip-resistant grille and the filter, cooled or heated via the heat exchanger (3) and supplied again to the room (2) via the tread-resistant grille. The CNVA floor convectors are particularly suitable for rooms with...

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TECHNICAL DOCUMENTATION Description of the equipment DESCRIPTION OF THE EQUIPMENT MODELS Housing • Made of galvanised sheet steel, painted on the inside and outside to RAL 9005 (black), with pre-marked connection openings for electrical and hydraulic connections on the right (-W2/-W4) and left (-W1/-W3), respectively. • Upper frame made of extruded anodised aluminium profiles E6/Ev1 (-G1). Other colours on request. • Spacer bridges made of galvanised sheet steel RAL 9005. Tread-resistant louvre grid • Extruded anodised aluminium profile. Painting optional: - Linear grille aluminium natural...

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TECHNICAL DOCUMENTATION Construction and Dimensions CONSTRUCTION AND DIMENSIONS WIDTH AND HEIGHT Figure 4: Width and Height of the CNVA HEAT EXCHANGER QUICK SELECTION CNVA-…-H2 Diagram 1: Heat exchanger quick selection NOMINAL LENGTH Figure 5: Nominal length (NL) of the CNVA

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TECHNICAL DOCUMENTATION Construction and Dimensions 2. Model Total length (LG) > Nominal length (NL) Heat exchanger on the right (-R) in all connection positions. Heat exchanger on the left (-L) in all connection positions. H (mm) W (mm) Heat exchanger Weight (kg) HeaAmount ting of water (l) Cooling NL=1150 mm 1. Standard model Total length (LG) = Nominal length (NL): • Heat exchanger on the right whenever connections are on the left (-S). • Heat exchanger on the left whenever connections are on the right (-S). The position of the heat exchanger in the housing depends on the position of the...

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TECHNICAL DOCUMENTATION Construction and Dimensions EXPLODED DRAWING 1. Tread-resistant louvre grid 2. Spacer bridges 7. EC fan 3. Filter 4. Filter frame 5. Cover plate 6. Heat exchanger 8. Junction box 9. Housing 10. Adjustable legs Figure 9: Exploded drawing of the CNVA Construction subject to change No return possible

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TECHNICAL DOCUMENTATION Accessories │ Connections PRIMARY AIR CONNECTING PIECE Additional connecting piece for primary air entry with air diffuser plate (connection to room side). 3 1 Figure 13: Primary air connection pipe for CNVA Primary air connecting piece position • Without primary air connecting piece (-0) • Lateral left primary air connecting piece (-1) • Lateral right primary air connecting piece (-2) • Primary air connecting piece left front side (room side) (-3) • Primary air connecting piece right front side (room side) (4) • Primary air connecting piece centre dummy piece (-5) •...

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TECHNICAL DOCUMENTATION Connections Figure 15: Connection position for type H=106 Figure 17: Connection position for type H=190 DIMENSIONS OF THE WATER CONNECTIONS Figure 18: Dimensions of the water connections Figure 16: Connection position for type H=150

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TECHNICAL DOCUMENTATION Connections | ROOM TEMPERATURE CONTROLLER RDG160T (OPTIONAL) ACTUATORS Model STA • Actuating power 100 N. • Simple installation. • Standard version prewired. • Motion and position indicator. • Two-/ three-wire connecFigure 19: STA tion. • Pulse width modulation (PDM). • STA23: Actuator thermal, operating voltage AC 230 V, actuator signal 2-point. • STA73: Actuator thermal, operating voltage AC/DC 24 V, actuator signal 2-point or PDM. • Normally Closed (NC). Model SABNM • SABNM-LOG: Actuator thermal, operating voltage DC 24 V, control 0...10 V DC. Model SSA •...

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TECHNICAL DOCUMENTATION Regulation and control system | REGULATION AND CONTROL SYSTEM ELECTRICAL JUNCTION BOX CONTROL BOARD (OPTIONAL) All convectors are equipped with an electrical junction box with degree of protection IP65, including an electrical connecting plate with spring clamps (-S0) or alternatively with a control board likewise with spring clamps for three operating modes (-S1) Electric card for controlling the convector by means of 0...10 V DC signals. The control board has three operating modes, which can be selected by means of switches. Figure 22: Electrical junction box...

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TECHNICAL DOCUMENTATION Models MODELS CONNECTING PIECE FOR BAND DESIGN DIMENSIONS OF THE GRILLE INSERT WITH AND WITHOUT END PIECE Figure 25: Connecting piece for band design Thermal and acoustic insulation made of 3-mm polyethylene on the outside of the housing (-A3). Recommended for installation in false floors. Connecting pieces for band design. At the ends without end pieces Possible design with end piece on both sides (-E2), without end piece (-E0), right only (-ER) or left only (-EL). Figure 26: Total length of the tread-resistant grilles with or without end piece

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TECHNICAL DOCUMENTATION Models ADJUSTABLE LEGS PROTECTIVE MOUNTING COVER Dimensions of the adjustable legs • L=70 mm (-07), adjustable legs for adjusting the device height up to 60 mm. Fastening point on room side. • L=130 mm (-13), adjustable legs for adjusting the device height up to 120 mm. (Limited to device dimensions of type H=106). Fastening point on room side. • Threaded rod DIN913 M8 (S=4mm) As standard, the device is delivered with a cover of stable cardboard for protection against dirt and damage during transport and up to commissioning (-M1). Optionally, a protective mounting...

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TECHNICAL DOCUMENTATION Models Circuit diagram CONDENSATE PUMP Pump and small sensor housing for emptying the water of condensation formed in the cooling register. Drain Float block Condensate pan Condensate pump Figure 29: Condensate pump Technical data Max. delivery rate Max. delivery height Maximum pressure Electric power Power supply Alarm Overheating protection operating ratio Protection class Dimensions 15 l/h 2m 10 m 19 W 220-240 V NO/NC 5 A 70 °C 100% IP64 Pump block: 85x28x48 mm Float block: 78x38x37 mm Figure 31: Circuit diagram of condensate pump with connecting plate (S0) Table...

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