Summary of Contents for McQuay MicroTech II IM 783-1
- Page 1 Installation Manual IM 783-1 Group: Controls Part Number: IM 783-1 Date: February 2005 Supersedes: IM 783-0 MicroTech II Remote I/O Panel Installation Manual...
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Page 2: Table Of Contents
Table of Contents Notice ..............................3 Reference Documents ..........................3 Revision History ............................3 Introduction..........................4 Panel Location and Mounting ....................5 Unpack the Remote I/O Panel........................5 Physical Installation ..........................5 Tools Required ..........................5 Before Installation..........................5 Mounting............................5 Removing and Replacing the Cover.......................8 Removing the cover of a Remote I/O Panel..................8 Replacing the cover of a Remote I/O Panel ..................8 Field Wiring ..........................9 Power Wiring............................9... -
Page 3: Notice
Notice McQuay International reserves the right to change any information contained herein without prior notice. The user is responsible for determining whether this product is appropriate for his or her application. The following are trademarks or registered trademarks of their respective companies. L from Echelon Corporation;... -
Page 4: Introduction
Remote I/O modules are not application specific. All the application software resides in the CSM supervisory controller. This means that the same remote I/O modules are used on a CSM. Remote I/O modules may be purchased separately (McQuay part number 112024401) and mounted in the field. They can also be purchased pre-mounted in a remote I/O panel ready for wall mounting. -
Page 5: Panel Location And Mounting
Unpack the Remote I/O Panel Unpack the remote I/O panel and inspect the contents of the package for damaged or missing components. If damaged, notify the appropriate carrier at once and contact your local McQuay representative for immediate repair or replacement. Physical Installation... - Page 6 Figure 1. Remote I/O Panel Mounting Guide Ø .218" (0.55cm) .438" (1.11cm) Ø .406" (1.03cm) DETAIL KEYHOLE Upper Mounting Remote I/O Panel Mounting Guide 11.375" (28.89cm) Mount with this end up. Note: Drawing not to scale. Verify all measurements before drilling. Lower mounting holes are 0.221"...
- Page 7 Figure 2. Remote I/O Mounting Detail 8.63 (219) 1/2" CONDUIT KNOCKOUT 3.5 (89) FOR AC POWER ENTRY 1.25 (31.8) 1.030 1.130 (26) (29) 4.00 (102) KEYHOLE 0.218 DETAIL (5.5) 1" CONDUIT KNOCKOUTS 0.438 (11) 15.5 (394) 9.50 3.00 (241) (76) 0.406 (10.3) 3.05...
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Page 8: Removing And Replacing The Cover
Removing and Replacing the Cover The remote I/O panel cover is removable and provides a security screw that secures the cover in place. Note: The security screw that ships with the remote I/O panel is a standard #10-32 machine screw, pan head, ½-inch Phillips. You can replace this screw with a tamper-proof screw to provide a more secure installation. -
Page 9: Field Wiring
Field Wiring Following are descriptions of the various field-wiring requirements. Wiring must comply with the National Electrical Code and all local codes and ordinances. Failures caused, or contributed to, by wiring not in accordance with these instructions will not be covered by warranty. Power Wiring Building power is wired to the transformer supplied with the remote I/O panel. - Page 10 CAUTION Do not run L communication wiring alonside higher-voltage supply or higher-voltage control wiring. ORKS Communication problems over the L network can occur. ORKS On 120 VAC models, connect 120 VAC, 50/60 Hz power to the two position terminal block provided using the information in Table 2.
- Page 11 Figure 3. Remote I/O Panel General Wiring Diagram If the module’s relay outputs will be controlling high voltage (230 Volt maximum) devices, bring high Power Supply voltage control wires to modules 3 120 VAC or 208/240 VAC and 4 through the top of the panel. (depending on model) Transformer Primary...
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Page 12: Remote I/O Modules
Remote I/O Modules Mounting of Remote I/O Modules Each remote I/O module mounts on a DIN rail. The modules are snapped in place on the rail. To remove a module from a rail, slip a flat-head screwdriver into the stirrup located on the base of the module (center tab under the brown terminals). Gently pull the stirrup away from the housing while lifting up on the module. -
Page 13: Designation Of Remote I/O Modules
Designation of Remote I/O Modules When you receive a Remote I/O Module(s) in a Remote I/O Panel, it has not yet been assigned a designation (meaning it has not yet been assigned to be Hardwired, Remote A, Remote B, etc.). The module only becomes a Remote I/O Module A (or B, or C, etc.) or a Remote I/O Module for Hardwired Chillers after it has been commissioned into the CSM’s L ORKS communications network. -
Page 14: Maintenance
Maintenance This section provides information on the following topics: • Cleaning • Replacement Parts Cleaning If dust or metal filings are present inside the unit, clean with vacuum or compressed air. Otherwise, no cleaning inside the unit is required. Optionally, if the outside of the metal enclosure becomes dirty, you can wipe it with a damp cloth and mild detergent. -
Page 15: Warranty
Replacement Parts When writing to McQuay for service or replacement parts, refer to the model number and serial number of the unit as stamped on the serial plate attached to the unit. If replacement parts are required, include the date of installation of the unit and date of the failure, along with an explanation of the malfunctions and a description of the replacement parts required. - Page 16 This document contains the most current product information as of this printing. For the most up–to-date product information, please go to www.mcquay.com. 2005 McQuay International • www. mcquay.com • (800) 432-1342...
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