M3P..G/A, M3P..F/A Modulating control valves (PN16) for chilled and hot water systems

Transcription

1 MP..G/A, MP..F/A Modulating control valves (PN) for chilled and hot water systems Three-way or straight-through valves with magnetic actuators for modulating control of chilled and hot water systems. Short positioning time High resolution High rangeability Low friction closed when de-energised Versatile electrical interface Robust and maintenance-free MP..G/A Types MP..G../A Screwed valves DN8... DN0 MP..F../A Flanged valves DN8... DN00 Technical data MP..F/A ) Only admissible with extra-low voltage (SELV, PELV) Caution This valve is suitable for straightthrough or three-way applications and may be installed ONLY in a mixing arrangement. * Note: Mounting below the horizontal is NOT recommended in the UK. Ordering information The valves are supplied complete with a ZM00/A or ZM00/A terminal housing. A separate order is required for terminal housings ZM0/A or ZM0/A. See sheet 9. Blank flanges or screwed plugs must be ordered separately, see page. Ordering example MP0F/A (Control valve) Z/0 (Blank flange) Standard electrical interface: ZM00/A (up to DN) or ZM00/A (from DN80) Control signals DC V or V phase cut Supply voltage ) AC V /0 % (only with DC 0...0V signal) Other electrical interfaces on request: ZM0/A, ZM0/A (see ordering information) Control signals DC... 0 ma or DC V phase cut Supply voltage ) AC V /0% (only with DC...0 ma signal) Nominal power See table on page Nominal pressure PN Operating pressure p e max MPa (0 bar) Admissible pressure differential p v max See table on page Leakage at p v = 0. MPa (bar) max. 0.0 % k vs (to VDI/VDE7) depending on operating data (approx. % k vs ) Water temperature...0 C Valve characteristic (stroke, k v ) Linear, optimised in low opening range Resolution H / H 00 > : 00 (H = stroke) Type of operation Modulating Manual adjustment Up to max. 90 % depending on DN Position when de-energised closed Orientation Any (Affects protection standard see below) Positioning time Approx. s Materials (valve body): Housing Cast iron Control disc Chrome nickel steel Seat Brass Spindle seal EPDM (O ring) Connection terminals Screw terminals for mm wire Protection standard: Horizontal to vertical mounting IP to EN09 Below horizontal* IP0 to EN09 Ambient temperature... 0 C Weight Conforms to See 'Dimensions and weight' tables requirements See sheet 0 for a summary of valves for water and steam applications. Siemens Building Technologies CANE /.998 Landis & Staefa Division /

2 Types and operating data Valve type DN k vs p v max P N P med q [mm]...0 [mm] [m/h] [kpa] [bar] [VA] [VA] L [m] p v max = Max. admissible pressure differential P N = Nominal power P med = Mean operating power k vs = Flow rate to VDI/VDE7, tolerance ±0 % L = Max. cable length. With -wire connections, the maximum permissible length of the separate. mm Cu signal cable is 00 m. q = Cross-secton of cable (Cu) MP08../A 08/ MP0../A 0/ MP../A MP0../A MP../A MP../A MP0../A MP0../A MPF/A MP80F/A MP00F/A [m /h] ,7 0, 0, 0, 0, Water flow chart Flow / pressure-differential relationship. k vs signifies the volume of water V in m /h which flows through the open valve at a pressure differential p v of 00 kpa ( bar). See sheet 0 for notes on calculating the value of k vs. V 900A MP..Y MP../A DN00 k vs 0 DN80 k vs 80 DN k vs 0 DN0 k vs 0 DN0 k vs 0 DN k vs DN k vs 8 DN0 k vs DN k vs DN0 k vs, DN k vs DN08 k vs 0, p v max [l / s] ,7 0, 0, 0, 0, 0, 0,07 0,0 0,0 0,0 0,07 0, [kpa] 0,0 0,0 0,0 0,0 0,07 0, 0, 0, 0, [bar] p v CANE /.998 Siemens Building Technologies / Landis & Staefa Division

3 Principle of operation / Construction The control signal is converted in the ZM../A terminal housing into a phase cut signal, which generates a magnetic field in the coil. This causes the only moving part, the armature, to change its position in accordance with the interacting forces (magnetic field, counterspring, hydraulics etc). The armature responds rapidly to any change in signal, transferring the corresponding movement directly to the control disc, enabling fast changes in load to be corrected quickly and accurately. The spring force closes the valve automatically (control path ports > ) in the event of a power failure or if the power is switched off. The valve stem is sealed externally by a maintenance-free O-ring gland. See sheet 08 for a detailed description of operation. Manual adjustment The valve can be opened manually up to 90 % (control path ports > ) by turning the handwheel clockwise. The manual adjustment facility can also be used as a mechanical method of low limit control, i.e. normal control is possible between the manually adjusted position and the 00 % open position. For full-stroke automatic control, the handwheel must be set to 0 (i.e. to the anticlockwise end-stop). Warning Always disconnect the power supply before connecting or disconnecting the ZM../A terminal housing. * Note: Mounting below the horizontal is NOT recommended in the UK. Mounting Mounting instructions: Ref. (ZM.. terminal housing) and Ref. (valve), are enclosed with the valve. The valve is suitable for straight-through or three-way applications and may be installed ONLY in a mixing arrangement. Vertical to horizontal mounting: Protection standard IP Below horizontal * : Protection standard IP0 The screwed valves are flat-faced to facilitate sealing with the gaskets supplied. The use of sealing compounds, tape or hemp thread is not recommended. The actuator housing can be rotated through 0 for convenient mounting. The actuator must not be lagged. Only three-way valves are supplied. These may, however, be used as straight-through valves by sealing port, as described below. Recommendation Water systems should be cleaned, flushed and treated in accordance with current good practice, as described, for example, in the BSRIA Application Guides AG 8/9 and AG /9. For other relevant information, see also CIBSE Guide B (Section 7). Flanged valves in straight-through applications Port "" can be sealed with part Z/.. (screwed plug or blank flange). These Z.. parts must be ordered separately where required (the blank flanges come complete with seal, screws, spring washer and nuts). DN... DN Screwed tap (Z/... Z/) or blank flange (Z/F... Z/F) DN0... DN00 Blank flange (Z/0... Z/00) 0789A Z/ Z/0 Z/ Z/ Z/F Z/0F Z/F Z/F Z/0 Z/0 Z/ Z/80 Z/00 Siemens Building Technologies CANE /.998 Landis & Staefa Division /

4 Screwed valves in straight-through applications Port "" can be sealed with the accessories supplied (nut, cover and gasket).screwed valves are flat-faced to facilitate sealing with the gaskets originally supplied. The use of sealing compounds, tape or hemp thread is not recommended. 9N0 B Hydraulic circuits (Principles only, without installation-specific details) 0 x DN [min. 0, m] 080 A B A Mixing circuit C Injection circuit B Mixing circuit with bypass D Diverting circuit (Underfloor heating) E Injection circuit with straight-through valve C D E Caution For use with a DC 0 0 V phase cut signal, do NOT connect the AC V supply to terminals &. Connect Terminal (marked "") to the appropriate Y output terminal on UNICO, KLIMO and MULTIREG (type 9 controllers) to Terminal on type NKOA terminal modules. Terminal layout ZM00/A, ZM00/A (DC V) 00 B Power supply AC V Control signal DC V ZM0/A, ZM0/A (DC... 0 ma) ZM00/A, ZM00/A (DC 0...0V phase cut) 0 C Control signal DC V phase cut ZM0/A, ZM0/A (DC 0...0V phase cut) ZM0/A or ZM0/A must be ordered separately, see page. 00 B Power supply AC V Control signal DC... 0 ma 0 C Control signal DC V phase cut Twisted pairs See sheet 9 for connection diagrams for the ZM../A terminal housing CANE /.998 Siemens Building Technologies / Landis & Staefa Division

5 Dimensions [mm] and weight [kg] 9F78 A 00 E MP..G/A, MP..F/A, Screwed valves with terminal housing Flanged valves with terminal housing DN... DN0 DN... DN DN80 and DN00 9F79 A 9H80 A F F F Cable connection ø Cable connection ø E x Ø.8 mm x Ø.8 mm b ø d ø E Cable connection x Ø. mm min. H L DA External thread G to ISO 8/ Internal thread Rp to ISO 7/ Screwed fittings to ISO9 / DIN90 L DI Screwed valves are supplied complete with fittings and gaskets. Flange dimensions to DIN, PN. Counter-flanges are not supplied with the valves. * Dimensions when used as a straightthrough valve W Weight in kg (including packaging) L min. 00 H L MP..G/A Screwed valves Siemens Building Technologies CANE /.998 Landis & Staefa Division / L ø k ø D min. 00 Valve type DI DA L L L * H E F W [Inches] MP08G/A Rp / G MP0G/A Rp / G MPG/A RP / G MP0G/A Rp / G / MPG/A Rp G / MPG/A Rp / G MP0G/A Rp / G / MP0G/A Rp G / MP..F/A Flanged valves Valve type L L D b k d H E F W MP08F/A 0 9 x 0 7. MP0F/A 0 9 x MPF/A x MP0F/A x 0 7. MPF/A x MPF/A x MP0F/A x MP0F/A x MPF/A x MP80F/A x MP00F/A x8 8. H

6 998 Siemens Building Technologies Ltd. CANE /.998 Siemens Building Technologies / Landis & Staefa Division