Download EZT-430i - Environmental Test Chambers from Cincinnati Sub-Zero
Transcript
EZT-430i 2 Installation The following two sections will explain how to install the EZT-430i control system. EZT-430i controllers are pre-loaded with all operating software and firmware before leaving the factory, so it is ready to install when you receive it. Refer to Section 2 for mounting information and Section 3 for power, signal and control wiring. Before beginning installation, read through these sections to gain an understanding of the entire installation. Consider the installation carefully. Plan the power, signal and control wiring before installing EZT-430i. Also consider the cabinet space, hardware dimensions and environmental conditions. Use good wiring practices to minimize problems that may occur due to electrical interference. WARNING: CAUTION: 2.1 • To avoid potential electric shock and other hazards, all mounting and wiring for EZT-430i must conform to the National Electric Code (NEC) and other locally applicable codes. • Special expertise is required to install, wire, configure and operate the EZT-430i controller. Personnel without such expertise should not install, wire or operate EZT-430i. • Prevent metal fragments and pieces of wire from dropping inside the housing of any EZT-430i component. If necessary, place a cover over the components during installation and wiring. Ingress of such fragments and chips may cause a fire hazard, damage or malfunction of the device. • When handling the EZT-430i B42 series loop control boards, use proper ESD (electro-static discharge) handling procedures to prevent damage to board components. • Locate EZT-430i and all related control components away from AC power/motor wiring and sources of direct heat output such as transformers, heaters or large capacity resistors. Enclosure Guidelines EZT-430i must be installed correctly for reliable operation. The EZT-430i controller is designed for installation within a suitable enclosure. Do not install EZT-430i outside of an enclosure. Care must be taken when locating components to ensure that AC power wiring, contactors, starters, relays and other sources of electrical interference are properly located to minimize their impact on the EZT-430i control system. Particular note should be taken to the position of variable speed drives and switching power supplies. Their input and load cables should be screened and properly grounded to a central equipment grounding point to prevent radiated emissions from affecting EZT-430i operation. Installation EZT-430i 2.1