Metasys Smoke Control Wiring

Transcription

1 Metasys Network Technical Manual 636 Smoke Control Section Technical Bulletin Issue Date 1199 Metasys Smoke Control Wiring Metasys Smoke Control Wiring Page 3 Overview 3 References 4 Power Entry 5 Metasys Field Interface Point Types *6 Wiring Segregation *8 Smoke Control I/O Wiring Transient Protection Requirements *10 *Indicates those sections where changes have occurred since the last printing Johnson Controls, Inc. 1 Code No. LIT

2 2 Smoke Control Metasys Smoke Control Wiring

3 Metasys Smoke Control Wiring Overview In order for Metasys field wiring to comply with the National Electric Code (NEC) and National Fire Protection Association (NFPA) specifications for smoke control systems, power limited wiring must be separated from non-power limited wiring. Field wiring terminals that are used for power limited wiring must be labeled as such. If terminals are not labeled, they are regarded as non-power limited. Some Metasys hardware may be used in both power limited and non-power limited circuits. These circuits must be segregated during system design to comply with the appropriate codes. For example, if several FM-IUN102 modules are used in power limited circuits while several other FM-IUN102 modules are used in non-power limited circuits, they must be segregated. In base frame configurations, the 1/4 inch solid barrier between Field Terminal Blocks (TBFs) is the separation required for power limited/non-power limited circuits. Therefore, the wiring system must be designed in groups, with each TBF bay being chosen to house all power limited or non-power limited field wiring. See the Wiring Segregation section in this document for details on wiring segregation requirements for Metasys products. In order to meet the requirements of Underwriters Laboratories (UL) under UL 864 UUKL Smoke Control, some of the Metasys field wiring must be protected by installing transzorbs or Metal Oxide Varistors (MOVs). This is only required if the field wiring to the monitored and controlled equipment leaves the room where the controller is installed. A more detailed description of the requirements including tables showing which point types require protection may be found in the Metasys Field Interface Point Types section and the Smoke Control I/O Wiring Transient Protection Requirements section in this document. Smoke Control Metasys Smoke Control Wiring 3

4 References When designing your smoke control system, you must read and become familiar with the following documents, codes, and standards: NFPA 92A Recommended Practice for Smoke Control Systems ASHRAE publication entitled Design of Smoke Control Systems for Buildings NFPA 72 National Fire Alarm Code NFPA 101 Life Safety Code NFPA 90A Air Conditioning Systems NFPA 92B Smoke Management Systems in Malls, Atria, and Large Areas BOCA (Building Officials and Code Administrators International) model code ICBO (International Conference of Building Officials) model code SBCCI (Southern Building Code Congress International) regulations For Canadian applications, you must read and become familiar with the following documents, codes, and standards: NFPA 92A Recommended Practice for Smoke Control Systems ASHRAE publication entitled Design of Smoke Control Systems for Buildings NFPA 92B Smoke Management Systems in Malls, Atria, and Large Areas National Building Code Provincial Building Codes Supplement to the National Building Code 4 Smoke Control Metasys Smoke Control Wiring

5 Power Entry Input power (120 VAC) must be brought into the enclosure in the corner nearest its termination location. For example, the EN-EWC10-45 Series enclosure has a conduit entry area molded into the cover (Figure 1). Power must be brought into these locations based on where the power box is located. For the EN-EWC100, 200, and 500 Series enclosures, power must be brought into the enclosure in the upper right corner. No other wiring can be located in this power wiring area (Figure 1). Power Wiring Area Cable Tray EN-EWC10-45 Series Enclosure EN-EWC100, 200, or 500 Series Enclosure encls Figure 1: EN-EWC10-45 Series and EN-EWC100, 200, and 500 Series Enclosures Smoke Control Metasys Smoke Control Wiring 5

6 Metasys Field Interface Point Types Type 1, Pneumatic Modules (No Separation Concerns) Type 2, Modules Rated as Power Limited Only For Type 1 modules (pneumatic only), field connections are made to the modules via air lines. Therefore, these modules may be placed anywhere in a system. FM-IAP101 FM-IDP00x FM-IDPB00x FM-OAP101 FM-OAP102 FM-OAP103 FM-OAP121 FM-OSV101 For Type 2 modules (power limited only), field wiring must be segregated from non-power limited wiring. In application specific products, this is not a problem since all field wiring is power limited. AP-VMA Series AS-AHU Series AS-UNT Series AS-VAV Series FM-IAN101 FM-IBF101 FM-OAE101 FM-OAI101 FM-OAN101 FM-OBE101 FM-OTE101 XPA-8x1-5 XPB-8x1-5 XPT-4x1-5 XPT-8x1-5 XTM Smoke Control Metasys Smoke Control Wiring

7 Type 3, Modules Rated as Both Power Limited and Non-power Limited (Application Specific) For Type 3 modules (power limited/non-power limited), it is up to the system designer to ensure that modules are segregated, based on application. For example, if several FM-IUN102 modules are used to sense line voltage, they cannot all reside in the same base frame bay as power limited modules. The system must be configured to group the FM-IUN102 modules being used for 1K RTD applications with other power limited wiring. The FM-IUN102 modules used to sense line voltage must be grouped in a bay with other non-power limited modules. In base frame applications, wiring must be grouped by bays. Each bay in a base frame must be dedicated as either power limited or non-power limited. Base frames are shipped with a label on each bay stating Power Limited Field Terminal. When configuring a base frame, and using a bay for non-power limited field connections, you must use a permanent black marking pen to cover the wording in the label. The only bays that should display this label must be totally dedicated to power limited field wiring. Bays that do not display this label must be totally dedicated to non-power limited field wiring. In no case should power limited field wiring be mixed with non-power limited field wiring. The XTM/XPx-xxx product line has labels displaying whether or not it is power limited or non-power limited. For the XPx modules shown in Table 1, if the field wiring is non-power limited, the power limited label must be covered with a black permanent marking pen as explained above. For a specific module, only one type of wiring may be used per side on the module. Table 1: Power Limited and Non-Power Limited Modules Module Type FM-IBN101 NU-XBN101 FM-IUN102 FM-ORE101 FM-ORL101 FM-ORM101 NU-XRE101 NU-XRL101 NU-XRM101 XPE-4xx-5 XPL-4xx-5 XPM-4xx-5 Input (No Relay): Connect these inputs to a UL Listed Class II or Class III source of power supply to be considered a power limited module. If not connected as described above, follow the guidelines defined in the Wiring Segregation section of this document. Strictly Relay Contact: Connect these contacts to a UL Listed Class II or Class III source of power supply to be considered a power limited module. If not connected as described above, follow the guidelines defined in the Wiring Segregation section of this document. Input (also with Relay): Connect these contacts to a UL Listed Class II or Class III source of supply to be considered a power limited module. If not connected as described above, follow the guidelines defined in the Wiring Segregation section. Smoke Control Metasys Smoke Control Wiring 7

8 Wiring Segregation Since the AHU (Air Handling Unit), VAV (Variable Air Volume) Controller, UNT (Unitary) Controller, VMA (Variable Air Volume Modular Assembly), contain only power limited field connections, they are not discussed here. In base frame applications, power limited/non-power limited wiring must be positively segregated. N1 and N2 communication lines are considered power limited and must be routed only with other power limited wiring. The cable trays provided in the EN-EWC Series base frame enclosures must be used to separate power limited from non-power limited wiring (Figure 2). You must decide whether to use the inner or outer tray for a particular type of wiring. Then decide how the wiring will exit the enclosure, while keeping the segregation between power limited and nonpower limited wiring. Field wires must be taken from the field wiring terminals, directly into the cable trays (Figure 3). The XTM/XPx product line is handled in a similar way (Figure 4). There are no wire trays so cables must be wire tied off to maintain segregation. For more wiring information on the XTM/XPx product line, see XTM-105 Extension Module, XPx-xxx Expansion Modules Technical Bulletin (LIT ). EWC500 Cable Trays enewc500 Figure 2: EN-EWC500 Enclosure with Cable Trays for Power Limited Wiring 8 Smoke Control Metasys Smoke Control Wiring

9 Power Limited Wiring typwire Non-power Limited Wires Wire Routing Figure 3: Typical Wire Routing Smoke Control Metasys Smoke Control Wiring 9

10 XTM XPA XPL Non-power Limited Wiring Power Limited Wiring XTM XPA XPL XTM XPA XPL 3xpmxpa Figure 4: Power Limited/Non-power Limited Wiring Smoke Control I/O Wiring Transient Protection Requirements UL 864 UUKL Smoke Control Listing requires that any field I/O wire, from monitored or to controlled equipment, respectively that leaves the room the controller is mounted in, must be able to withstand signal line transient of 2400 volts and energy levels not less than 0.03 joule or greater than 1.2 joules. To meet this requirement, some of the Metasys field wiring must be protected by either transzorbs or MOVs. If the hardware you are using is not mentioned in the following sections, no transient protection is required. When installing the transient protectors (MOVs, transzorbs), care must be taken when installing a protector in close proximity to other protectors. Before the protective device is installed in the terminal block, it must be twisted together with the field lead and inserted into the terminal block as one wire. The wire must be twisted tightly around the transient protection device a minimum of two turns before it is inserted into the terminal block (Figure 5). Transient Protector Lead trans Figure 5: Wire for Transient Protection 10 Smoke Control Metasys Smoke Control Wiring

11 XTM/XPx Products AP-VMA DX-9100/9120 Products All field wiring, with the exception of the N2, must be kept in the room the controllers are mounted in. All field wiring, with the exception of the N2, must be kept in the room the controllers are mounted in. When using the DX-9100/9120 product line for Listed Smoke Control, there are only two I/O restrictions. The DX-9100-xxxxF base must be used. This base has the transient protection already installed. Also, when using the XP-9102, if the field wiring leaves the room the XP-9102 is installed in, the protection shown in Table 2 must be installed. The MOV must be a Johnson Controls Code No. SMOKE-MOVKIT. For further information on the DX-9100/9120 product line, refer to the DX-9100/9120 Applications section, under the Smoke Control tab of the Metasys Network Technical Manual (FAN 636). Table 2: Transient Protection for XP-9102 I/O Type Protection Needed Analog Outputs (AOs) Analog Inputs (AIs) Place an MOV from AOx to AOcom for each AO wiring pair that leaves the room. (x = Analog Output Number) Place an MOV from any AOcom to earth ground for any XP-9102 that has a field wire that leaves the room. Place an MOV from AIx to AIcom for each AI wiring pair that leaves the room. (x = Analog Input Number) Place an MOV from any AIcom to earth ground for any XP-9102 that has a field wire that leaves the room. When using the DX-9120 connected to an NU-NET201-0 installed in an NCM300-2/350-2/-8, an MOV must be installed across the NU-NET201-0 terminations. An MOV must also be installed at each drop on the Echelon cable at the point it is connected to each DX The MOV must be a Johnson Controls Code No. SMOKE-MOV9120. Capacitance of the MOV must be less than 350 pf. NCM300 Base Frame Products No transient protection is required on any of the I/O terminals of the NCM300. Note: The -1 version of the NU-NCM300/350 may not be used for smoke control. Install transzorbs to the base frame products in Table 3. Only terminals in use and I/O wiring leaving a room where a controller is installed need transient protection. The transzorb must be a Johnson Controls Code No. SMOKE-TRNKIT-0. Smoke Control Metasys Smoke Control Wiring 11

12 Table 3: Transient Protection for Base Frame Products I/O Function Module Protection Needed Input Function Modules FM-IAN transzorb mounted from TBF Terminal 1 to Terminal 2 (Side A on IAN) 1 transzorb mounted from TBF Terminal 1 to Terminal 6 (Earth Ground) 1 transzorb mounted from TBF Terminal 4 to Terminal 5 (Side B on IAN) 1 transzorb mounted from TBF Terminal 4 to Terminal 6 FM-IBF101-0 FM-IBN101-0 FM-IUN102-0 (Application) 2-wire RTD, 4-wire RTD, Differential Voltage, Current: Remote Source or Contacts Voltage: 0 to 10 volt DC, 3-wire Transducer or Potentiometer 1 transzorb mounted from TBF Terminal 1 to Terminal 2 1 transzorb mounted from TBF Terminal 1 to Terminal 6 1 transzorb mounted TBF Terminal 1 to Terminal 2 1 transzorb mounted TBF Terminal 1 to Terminal 6 1 transzorb mounted TBF Terminal 2 to Terminal 4 True 2-wire Current 1 transzorb mounted TBF Terminal 1 to Terminal 4 1 transzorb mounted TBF Terminal 1 to Terminal 6 XM Inputs Output Function Modules FM-OAE transzorb mounted from TBF Terminal 1 to Terminal 2 (Current Out) 1 transzorb mounted from TBF Terminal 1 to Terminal 6 1 transzorb mounted from TBF Terminal 4 to Terminal 5 (Voltage Out) 1 transzorb mounted from TBF Terminal 4 to Terminal 6 FM-OAI101-0 Current Out Application FM-OAI101-0 Voltage Out Application FM-OAI101-0 Current Control Application FM-OAN101-0 Current Out 1 FM-OAN101-0 Current Out 2 1 transzorb mounted from TBF Terminal 1 to Terminal 2 1 transzorb mounted from TBF Terminal 1 to Terminal 6 1 transzorb mounted from TBF Terminal 4 to Terminal 5 1 transzorb mounted from TBF Terminal 4 to Terminal 6 1 transzorb mounted from TBF Terminal 2 to Terminal 3 1 transzorb mounted from TBF Terminal 2 to Terminal 6 1 transzorb mounted from TBF Terminal 1 to Terminal 2 1 transzorb mounted from TBF Terminal 1 to Terminal 6 1 transzorb mounted from TBF Terminal 4 to Terminal 5 1 transzorb mounted from TBF Terminal 4 to Terminal 6 FM-OBE transzorb mounted TBF Terminal 1 to Terminal 2 1 transzorb mounted TBF Terminal 1 to Terminal 6 FM-ORE101-0 FM-ORL101-0 FM-ORM101-0 FM-OTE101-0 Point Multiplex (Expansion) Modules XBN101, XRE101, XRL101, and XRM101 Inputs = Outputs = 12 Smoke Control Metasys Smoke Control Wiring

13 AHU, UNT, VAV Products Install MOVs to the AHU, UNT, and VAV products in Table 4. Only terminals in use, and I/O wiring leaving a room where a controller is installed, need transient protection. The MOV must be a Johnson Controls Code No. SMOKE-MOVKIT-0 for terminal block versions. The MOV must be a Johnson Controls Code No. AS-MOVKIT-0 for faston versions. Table 4: Transient Protection for AHU, UNT, and VAV Products I/O Function Module Protection Needed Analog Inputs (AIs) AHU, VAV: Install a MOV from each AI to AIcom. UNT: Binary Inputs (BIs) Analog Outputs (AOs) Binary Outputs (BOs) N1 Communication Lines (NCM200) N2 Communication Lines AHU, VAV: Install a MOV from each BI to BIcom. UNT: Install a MOV from each BI to a 24 VAC terminal. AHU, VAV: Install a MOV from each AO to AOcom. UNT: AHU, VAV: Install a MOV from each BO to 24 VAC. UNT: There are three possible ways to configure BOs: With the triacs jumper connected to Common on UNT, install an MOV from each BO to a 24 VAC terminal on UNT. With the triacs jumper connected to 24 VAC on UNT, install an MOV from each BO to a Common terminal on UNT. If using a separate load transformer, install MOV from each BO to the UNT triacs terminal. Smoke Control Metasys Smoke Control Wiring 13

14 14 Smoke Control Metasys Smoke Control Wiring Notes

15 Notes Smoke Control Metasys Smoke Control Wiring 15

16 Notes Controls Group FAN E. Michigan Street Metasys Network Technical Manual P.O. Box 423 Release 10.0 Milwaukee, WI Printed in U.S.A. 16 Smoke Control Metasys Smoke Control Wiring