Honeywell WA7626-CA Tech Note
Products: GSM Antenna Bracket WA7626‐CA. Subject: Earth Ground Isolation for Commercial Fire Systems Back ground: Installations requiring Earth Ground Fault detection, Commercial Fire, are being affected by the inadvertent grounding of the WA7626‐CA mounting bracket. This affects GSM series communicators such as the GSMCF, iGSMCF, or the IPGSM‐COM Solution: Install a nylon shoulder washer under the mounting screws (2x). It may also be necessary to install tape in‐between the bracket and mounting surface, if it is metal.
Drill the 2 mounting holes slightly larger to Accommodate the Nylon Shoulder washer. Use a 7/32 Drill bit, 2 places Richco Plastic Part# MN1#8‐6, 2 places