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Figure 18. Combustible Spacing Requirements A BC Pass Through Shelf Back Wall Counter Clearance Requirements for Non-Combustible Surroundings Corded Units with Built-In Switches Models (A) (B)† (C) GRA & GRAL 10" (254 mm) N/A 3" (76 mm) GRAH & GRAHL 11" (279 mm) N/A 3" (76 mm) Hardwired Units with Built-In Switches Models (A) (B)† (C) GRA & GRAL 8" (203 mm) N/A 1" (25 mm) GRAH & GRAHL with Infinite Heat Control Switch or Indicator Light 10" (254 mm) N/A 1" (25 mm) GRAH & GRAHL with On/Off Toggle Switch 8" (203 mm) N/A 1" (25 mm) A B C Pass Through Shelf Back Wall Counter Figure 19. Non-Combustible Spacing Requirements Dual Units with Built-In Switches Models (A) (B)† (C) GRA-XXD GRAH-XXD GRAL-XXD GRAHL-XXD 10" (254 mm) N/A 1" (25 mm) Dual Units with Remote Switches Hardwired Units with Remote Switches Models (A) (B) (C) GRA & 8" 0" 0" GRAL (203 mm) (0 mm) (0 mm) GRAH & 8" 0" 0" GRAHL (203 mm) (0 mm) (0 mm) †Must be a pass-through application, not allowed with back wall installation. Models (A) (B) (C) GRA-XXD GRAH-XXD GRAL-XXD GRAHL-XXD 8" (203 mm) 3" (76 mm) 0" (0 mm) Form No. GRM-0707 16 INSTALLATION CEILING MOUNTING Chain Mounting WARNING To avoid any injury or damage to the unit when using chains for installation, the chains must have sufficient strength and be securely fastened, or the unit could become loose or fall. Do not place anything on top of warmers supported by chains. Chain supplied by Hatco is constructed of sufficient strength to securely hold the weight of the unit only when properly mounted. 1. Securely fasten the chain to the surface above the desired area. Be sure chain is located so the unit will be suspended at a safe and proper distance from walls, counter and food. 2. Loosen but do not remove the screws securing the mounting tabs on each end of the unit. Extend the tabs, then tighten the screws securely. (See Figure 20.) 3. Attach a short piece of connecting chain to each pair of mounting tabs. (See Figure 20.) 4. Attach overhead chain to the connecting chain between the two mounting tabs. Repeat for other end of unit. (See Figure 20.) NOTE: Additional chain will be needed for dual Glo-Ray units. Chain Mounting with “S” Hook Units supplied from Hatco with power cord attached come with the connecting chain and “S” hook already attached to the mounting tabs. 1. Securely fasten the chain to the surface above the desired area. Be sure chain is located so the unit will be suspended at a safe and proper distance from walls, counter and food. 2. Attach both “S” hooks to the overhead chains and ensure the unit is level. (See Figure 20.) BREATH PROTECTOR (Optional) 1. Remove protective paper from the acrylic surfaces. 2. Position the acrylic breath protector into the channel on the warmer with the mounting holes aligned. (See Figure 21.) 3. Secure the breath protector using the weld screws and acorn nuts provided. Tighten weld screws until snug. Do not overtighten. Figure 20. Mounting with Chains Overhead Chain Mounting Tabs Acorn Nuts Breath Protector Weld Screws Connecting Chain Figure 21. Installing Breath Protectors CAUTION - HOT GLO-RAYFoodwarmer HATCO CORP. MILWA UKEE, WI U.S.A. ON OFF O PA R TS & SERVICE ASSISTANCE WWW.HATCOCORP.COM800-558-0607 HATCO CORP. MILWAUKEE , WI U.S.A. ON OFF O “S” Hook 17 Form No. GRM-0707 INSTALLATION ELECTRICAL WIRING HOOK-UP Refer to the ELECTRICAL RATING CHARTS for specific information. NOTE: If the unit being installed is not shown or listed in this manual refer to the wiring diagram supplied and installation information on the unit for further instruction. WARNING To avoid any injury or damage all electrical connections must be in accordance with local electrical codes and any other applicable codes. Connections should be made by a qualified, licensed electrician. CAUTION Strip Heaters with incandescent lights that require a circuit breaker larger than 20 amps must have a separate circuit breaker for the incandescent lights that is 20 amps or less. NOTICE To prevent premature failure to components the Remote Control Box (RMB) must be installed outside the strip heater heat zone. Power Supply Install supply wire and connectors suitable for at least 90°C (194°F). • Use a minimum of No. 14 AWG copper wire for individual circuits up to 15 amps. • Use a minimum of No. 12 AWG copper wire for individual circuits 15 to 20 amps. • Use a minimum of No. 10 AWG copper wire for individual circuits 20 to 25 amps. NOTE: Refer to wiring diagram supplied with unit and specifications label attached to unit for specific electrical information. Conduit Connection Units supplied with flexible conduit with right angle fitting attached come equipped with all internal connections completed at the factory. Attach proper power supply leads to the high temperature lead wires supplied. (See Figure 22.) NOTE: Refer to wiring diagram supplied with unit and specification label attached to warmer for specific electrical information. Figure 22. Conduit Connections Power Cord and Plug ...

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