Siemens DESIGO RXA20.1 Installation Manual Download Page 2 | Manualshive

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Siemens Building Technologies

Installation guide

CA2Z3884en

Building Automation

08.2001

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Summary of Contents for DESIGO RXA20.1

Page 1: ...YR T B1 YC YH Q1 D1 1 D2 D1 2 DESIGOä ä ä ä RXA Installation guide CA2Z3884en 08 2001 Siemens Building Technologies Building Automation ...

Page 2: ...2 8 Siemens Building Technologies Installation guide CA2Z3884en Building Automation 08 2001 ...

Page 3: ...ion 08 2001 Installation guide For controller types RXA20 1 RXA21 1 RXA22 1 and RXA29 1 1 Electromagnetic compatibility EMC 4 2 AC 230 V supply cables 5 3 AC 24 V transformer sizing 5 4 Signal cables 5 5 Cables for AC 24 V triac outputs and AC 24 V supply 6 6 Relay outputs 7 Contents ...

Page 4: ...r supply cables this minimum spacing is not necessary Where interference emitting cables intersect with cables which are susceptible to interference they should cross at right angles To ensure that the cable screen used works to optimum effect its entire circumference must be firmly connected at both ends to structural earth Structural earth refers to the metal housing mounting plate control panel...

Page 5: ... sensors room units window switches occupancy sensors dew point sensors and electric switches Use twisted 2 core or multi core round cable without a screen standard installation cable Single conductors and ribbon cable must not be used Signal conductors may be routed together with mains cables AC 230 V but they MUST be insulated from the mains in accordance with regulations and in compliance with ...

Page 6: ...e the table below Cable type A Diameter R Cable length Lmax m VDE DIN AWG mm2 mm Ω km 8 5 VA 9 5 VA 13 VA 20 VA 40 VA 60 VA 80 VA 100 VA 120 VA 10 5 26 2 59 3 8 420 280 180 90 60 45 36 30 YSLY 4 00 2 26 5 0 320 210 138 69 46 34 28 23 12 3 10 2 05 6 3 250 165 108 52 36 26 21 18 YSLY 2 50 1 80 8 0 200 167 130 86 43 29 22 17 14 14 1 95 1 62 11 160 130 100 68 34 22 17 13 11 LiYYP 1 50 1 40 14 120 100 ...

Page 7: ...ed load and the local installation regulations Fuse ratings depend on the room controller used Please refer to the relevant controller data sheet The cables must be secured with cable restraints The RXA22 1 controller has an additional relay contact Q44 for switch control of an electric heating coil Note the following for this relay contact The maximum resistive load is 1 8 kW Loads above this val...

Page 8: ...n guide CA2Z3884en Building Automation 08 2001 Siemens Building Technologies Ltd Building Automation Gubelstrasse 22 CH 6301 Zug Tel 41 41 724 24 24 Fax 41 41 724 35 22 www landisstaefa com 2001 Siemens Building Technologies Ltd Subject to change ...

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