Transcription of MR4 Refrigeration Temperature/Defrost Control …
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MR4 Refrigeration Temperature/Defrost Control …
FANs 125, 121 Temperature Controls SectionAInstallation BulletinIssue Date 1199 1999 Johnson Controls, No. 24-7664-1687, Rev. No. LIT-125193 IMPORTANT:All MR4 controls are designed foruse only as operating an operating controlfailure would result in personalinjury or loss of property, it is theresponsibility of the installer toadd devices (safety, limitcontrols) or systems (alarm,supervisory systems) that protectagainst, or warn of, to the MR Series Refrigeration TemperatureControls Product Bulletin, LIT-125199, for necessaryinformation on operation and performancespecifications for this MR4 Control is not position-sensitive but should bemounted for convenient wiring and mount the Panel Mount version, ensure that thereis at least 2 3/4 inches (70 mm) space behind thepanel. Make a cutout 1 3/16 x 2 13/16 inches(29 x 71 mm). Remove retaining clip from the the Control into the hole. Install retaining clip andadjust for mount the DIN Rail Mount version, install the DINrail where appropriate.
2 A—MR4 Refrigeration Temperature/Defrost Control Installation Bulletin Use Table 1 with function So to compensate for long sensor leads. Table 1: …
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