CNV
1 / 29Pages

Catalog excerpts

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

TECHNICAL DOCUMENTATION General description GENERAL DESCRIPTION SCHAKO's passive floor convectors CNV as decentralised airconditioners (heating mode) enable energy-efficient and comfortable air-conditioning of offices and administration buildings, exhibition and sales rooms, private living spaces, and conservatories. Passive floor convectors work by the principle of natural convection. Cold air close to the floor flows into the convector, is heated by the heat exchanger and flows upwards. The main area of use of floor convectors of this type is as addition to other heating systems and as an...

Open the catalog to page 2

CNV - Floor convector TECHNICAL DOCUMENTATION Description of the equipment MODELS 1 - Housing — Made of galvanised sheet steel, painted internally and externally to RAL 9005 (black), with pre-marked connection openings for hydraulic connections. Total length up to < 4000 mm Band design: — without end pieces (-E0) — with 1 end piece on the right (-ER) --- with 1 end piece on the left (-EL) Single convector with 2 end pieces (-E2) (standard) Housing outside: --- painted to RAL 9005 (black) (-A1) (standard) --- painted with polyester powder as rust protection (-A2) — With impact sound...

Open the catalog to page 3

CNV - Floor convector TECHNICAL DOCUMENTATION Construction and Dimensions ATTENTION For all dimensions given, the dimensions of projecting fastening elements have not been taken into account. * Dry weight per metre with linear grille, frame, spacer bridges and water register, without connections. Table 1: Constructive features CNV Construction subject to change. Return not possible. Version: 2017-03-09 | Page 4

Open the catalog to page 4

TECHNICAL DOCUMENTATION Construction and Dimensions TOTAL LENGTH AND REGISTER POSITION All passive floor convectors can be lengthened with inactive parts to a total length (-LG) of ≤4000 to adjust them to the structural conditions or to adjust them architecturally. Additional flexibility is achieved by having the option of selecting the register position. xxxx = Total length (LG) --- Nominal length up to < 4000 mm --- The total length (LG) must be entered with 4 digits. The position of the floor convector in the housing depends on the total length, the following options being possible:...

Open the catalog to page 5

TECHNICAL DOCUMENTATION Construction and Dimensions Upper frame: The tread-resistant grille of the passive floor convectors CNV consists of a linear grille or a roll-down grille (optional) which, fitted in a frame and reinforced with several spacer bridges, serves for transmitting and distributing the load uniformly all the way to the adjusting legs. G1 = Extruded aluminium profiles natural colour anodised E6/EV1 G2 = Extruded aluminium profiles black anodised E6/EV6 G3 = Extruded aluminium profiles bronze anodised E6/C33 SCHAKO linear grille PA: L1 = Linear grille aluminium natural colour...

Open the catalog to page 6

CNV - Floor convector TECHNICAL DOCUMENTATION Construction and Dimensions PRIMARY AIR CONNECTION SPIGOT In the complete CNV series, additional spigots with air diffuser plates for introducing conditioned fresh air can be used for covering all possible air-conditioning needs. Spigot diameter: PI = Width of rectangular spigot = as ordered, without GD Rubber lip seal (-GD) Rubber lip seal for the primary air connection spigot for airtight connection between device and duct. Table 2: Possible primary air connection spigots Primary air connection spigot position 1 = Primary air connection spigot...

Open the catalog to page 7

TECHNICAL DOCUMENTATION Connection CONNECTION POSITION W1 = Left end face (standard) W2 = Right end face W3 = Left front face - Room side W4 = Right front face - Room side The housings of the floor convectors CNV are pre-punched for various positions of the electrical and hydraulic connections, thus facilitating installation. Facade side Room side Figure 19: Connection position for type CNV 190 Figure 18: Connection side Model B = 270 mm Room side (-W3/-W4) ATTENTION The position of the water connections and the position of the primary air connection spigot without housing extension must...

Open the catalog to page 8

CNV - Floor convector TECHNICAL DOCUMENTATION ConnectionModel B = 350 mm End face (-W1/-W2) Room side (-W3/-W4) Model B = 400 mm End face (-W1/-W2) Room side (-W3/-W4) Construction subject to change. Return not possible.

Open the catalog to page 9

CNV - Floor convector TECHNICAL DOCUMENTATION Connection WATER CONNECTION Plug fitting male thread Actuators Rotating plug fitting with male thread K" flatsealing. Fitting body made of brass, sealing rings made of rubber and clamping ring made of stainless steel. Figure 23: Plug fitting male thread Eurocone connections Spigot nut female thread %" Eurocone for copper pipe 15. Model STA — Actuating power 100 N --- Simple installation --- Standard version prewired --- Motion and position indicator — Two-/ three-wire connection — Pulse width modulation (PDM) — STA23:Actuator thermal, operating...

Open the catalog to page 10

CNV - Floor convector TECHNICAL DOCUMENTATION Connection WATER CONNECTION OPTIONS 6 = Straight-through valve, shut-off valve and actuator _continuous 24V (motorised), LGmin=NL+100 mm Construction subject to change. Return not possible. Version: 2017-03-09 | Page 11

Open the catalog to page 11

TECHNICAL DOCUMENTATION Closed-circuit and open-circuit control system CLOSED-CIRCUIT AND OPEN-CIRCUIT CONTROL SYSTEM ELECTRICAL JUNCTION BOX Connecting a CNV unit Figure 34: Connecting a CNV unit Connecting several CNV units Figure 35: Connecting several CNV units without electric junction box (standard) Electric junction box, with terminal strip, internally prewired * ATTENTION When using the floor convectors CNV in parallel, the load limits of the control and power consumption of the floor convectors must be taken into account. If the floor convectors CNV are controlled via actuators...

Open the catalog to page 12

CNV - Floor convector TECHNICAL DOCUMENTATION Models END PIECE The CNVs can be installed individually or in band design with an end piece on both sides, only on the right or only on the left, or without an end piece.. EO = Band design, central part without end piece ATTENTION For perfect alignment of the units, the four connecting parts should be installed and fastened using the delivered screws. EXTERNAL COATING Housing painted externally to RAL9005 (-A1) (standard), or painted with polyester powder as rust protection (-A2). Optional: Impact-sound insulation made of 3-mm polyethylene on...

Open the catalog to page 13