zehnder nova

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Units connected in series zehnder nova Horizontal models NH, NHL, NHH, NHLH, NHLLH, NHLLHL opposite-side connection flow on the left opposite-side connection flow on the right Nominal installation height, 70 mm Nominal installation height from 140 to 1700 mm E L 1 2 0 L 0 3 L L L L 22 L 0 L 23 24 0 E E 10 11 12 31 32 33 E same-side connection, flow on the left same-side connection, flow on the right L L 0 0 0 0 E 10 11 12 31 32 33 E Vertical models NV, NVV, NVL opposite-side connection, flow on the left opposite-side connection, flow on the right All installation heights L L E 10 11 12 31 32 33 E All installation heights same-side connection, flow on the left same-side connection, flow on the right L L 19 20 21 E E 40 41 42 Zehnder Nova radiators may be connected in series, as shown on the drawings above. The radiators are shipped separately, connections shall be performed during installation. No more than three 6000 mm long Zehnder Nova radiators may be connected in series. The recommended connecting element size is 3 /4“. Zehnder Nova radiators must be connected in accordance with the shown arrangement. When placing an order, please indicate the number of the desired installation arrangement. For an additional cost (per request). Attention: For Zehnder Nova radiators connected in series, the minimum water flow rate must comply with the following table: Horizontal construction 20 % Vertical construction 17 % For two-row Zehnder Nova models, the serial linking arrangement and the manner of connecting are as follows: flow – at the radiator’s front panel, return – facing the wall. 20
Pressure losses zehnder nova Determining pressure loss ΔP Pressure losses for the Zehnder Nova radiator are calculated by using the following equation: The pressure loss constant, being a function of the mounting type and height and the connection code, is taken from the following table. 1,9125 ΔP = q ms • C ΔP = pressure loss in Pa q m = water flow rate in kg/hr C = pressure loss constant Example: model NH 70, installation length 1000 mm, same-side connection, q m = 62.0 kg/hr pressure loss constant C = 0,2993 Result: ΔP = 62,00 1,9125 • 0,2993 ΔP = 802 Pa Pressure loss constant C Model Connection NH, NHL opposite-side NH, NHL same-side NHH, NHLH, NHLLH, NHLLHL opposite-side NHH, NHLH, NHLLH, NHLLHL same-side NH, NHL NHH, NHLH vertically underneath vertically underneath Nominal installation height, mm 70 mm 140 mm 210 mm 280 mm 350 mm 420 mm 490 mm 560 mm 630 mm 700 mm 770 mm 840 mm 910 mm 980 mm 1050 mm 1120 mm 1190 mm 1260 mm 1330 mm 1400 mm 1470 mm 1540 mm 1610 mm 1680 mm 0,0748 0,2244 0,3741 0,5237 0,1496 0,2993 0,4489 Pressure loss constant C 0,0199 0,0397 0,0596 0,0795 0,0994 0,1192 0,1391 0,0748 0,2693 0,4900 0,7751 0,0199 0,0748 0,1302 0,2059 Model Connection NV, NVL same-side NV, NVL opposite-side NVV same-side NVV opposite-side NV, NVL NVV vertically underneath vertically underneath Nominal installation height, mm Pressure loss constant C from 600 to 4600 mm 0,0073 0,0073 0,0073 0,0073 0,1496 0,0397 21
Page 1 and 2: zehnder nova
Page 3 and 4: Product description zehnder nova co
Page 5 and 6: zehnder nova Horizontal models NH N
Page 7 and 8: connection codes zehnder nova horiz
Page 9 and 10: Recommended mounting sets for easy
Page 11 and 12: Recommended mounting sets for horiz
Page 13 and 14: Technical parameters per section: S
Page 15 and 16: Technical parameters / Horizontal m
Page 17 and 18: Technical parameters per section: S
Page 19: Technical parameters / Vertical mod
Page 23 and 24: Suspension brackets zehnder nova Fo
Page 25 and 26: Suspension brackets zehnder nova Fo
Page 27 and 28: zehnder Notes 27

zehnder nova

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