Assessments - 3, GPA: 4 ( )

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1 -Remove the junction box cover from the outside right bottom corner of the unit by removing the hex head screw. The junction box cover has a ... in. (22 mm) knockout hole for a conduit bushing. 2 -Route a 3 wire 120V 60Hz power supply line through a wall switch to the junction box and connect the ground wire to the junction box ground screw, and the black and white supply wires to the appliance recptacle as shown in Figure 17. NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. B.B. module wiring is shown inFigures 20 and 21; the Honeywell, inFigure 22. Transformer OptionalBlower Electronic MillivoltBlower Note:“J” box plates are not affixed in place at the factory. Figure 18 GHC-5500/6500 IMPORTANT: Ground lead must be connected to the green screw located on the junction box. See Figure 17, 20, 21, or 22. Failure to do so will result in a potential safety hazard. The appliance must be electrically grounded in accordance with local codes or, in the absence of local codes, the National Electrical Code, ANSI/NFPA 70-(latest edition). (In Canada, the current CSA C22-1 Canadian Electrical Code.) Electronic Wiring (Without Forced Air Kit Usage) 1 Remove the junction box cover from the outside right bottom corner of the unit by removing the hex head screw. The junction box cover has a ... in. (22 mm) knockout hole for a conduit bushing. 2 Route a 3 wire 120V 60Hz power supply line through a wall switch to the junction box and connect the ground wire to the junction box ground screw, and the black and white supply wires to the appliance recptacle as shown in Figures 18, 19; and 20 (Robertshaw Ignition Module) or 22 (Honeywell Ignition Module). 3 Install the provided “J” box plate on the “J” box within the control compartment using the screw and washer provided with the plate. 4 -Locate and install the low voltage wall switch (supplied) in the desired location and connect it to the low voltage circuit using the 18 ft of 2 conductor wire supplied with the unit as shown in Figure 20. Note: The supplied 18 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose on top of the unit. 5-After wiring is complete, replace the appliance junction box cover into the side access opening, from which it was removed, and secure with the hex head screw previously removed. Electronic Wiring (With Forced Air Kit Usage) – GHC-5500 series models may use the optional FAB-1500 or FAB-1600 Forced Air Kit; GHC6500 the FAB-1600 Kit. If an optional forced air kit is to be installed now or sometime in the future, the appliance must be connected to the main power supply at this time. 1 Remove the junction box cover from the outside right bottom corner of the unit by removing the hex head screw. The junction box cover has a ... in. (22 mm) knockout hole for a conduit bushing. 2 Route a 3 wire 120V 60Hz power supply line through a wall switch to the junction box and connect the ground wire to the junction box ground screw, and the black and white supply wires to the appliance recptacle as shown in Figure 18; and 21 (Robertshaw Ignition Module) or 22 (Honeywell Ignition Module). Note: If a Honeywell ignition control module is being used, refer to Figure 22 for the control wiring and Figure 21 for the blower wiring. 3 Install the provided “J” box plate on the “J” box within the control compartment using the screw and washer provided with the plate. 4 Refer to Figure 18 and 21and the installation instructions provided with the forced air kit(s) for blower connections to the appliance receptacle and ground. 5 Locate and install the low voltage wall switch (supplied) in a desired location and connect it to the millivolt circuit using the 18 ft of 2 conductor wire supplied with the unit (See Figure 21). Note: The supplied 18 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose on top of the unit. 6 After wiring is complete, replace the appliance junction box cover into the side access opening, from which it was removed, and secure with the hex head screw previously removed. Electronic 120V Receptacle Note:“J” box plate is not affixed in place at the factory. Figure 19 GRD-5500/6500 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. Figure 20 Electronic System Wiring (Without Forced Air Kit) Figure 21 Electronic System Wiring (With Forced Air Kit) 1. If any of the original wire as supplied must be replaced, it must be replaced with Type AWM 105°C – 18 GA. wire. 2. 120V, 60Hz – Less than 3 amps. LIMIT SW. ON/OFF SW GND IgnitorJunction Box Transf. 120 V. W BK Gas Valve M C BLBK 24 V MVTHTRGNDPVIGN Ignition Control Factory Wired Field Wired P PV/MV GND W BL BK W GHC/GRD-5500/6500 Robertshaw Ignition Control Equipped 24V LOW VOLTAGE 120 VAC BK BK W GHC Series Only Green Ground Screw R BK R 1. If any of the original wire as supplied must be replaced, it must be replaced with Type AWM 105°C – 18 GA. wir...

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