Utica Boilers MGB Series II/MGC Series Operation and Installation Manual
Contents
1. Part Number _2. f Figure 2 Pilot Assembly 4 Remove main gas burner tubes See Figure 1 5 Remove main burner orifices See Figure 1 Q 6 Install LP gas main burner orifices Discard excess LP Ha Pilot orifices a a 7 Use 7 16 wrench disconnect pilot tube from pilot See A v Figure 2 8 Remove pilot orifice 9 Install LP gas pilot orifice 10 Apply liquid sealing compound provided to threads of Pilot Orifice pilot assembly fitting a 11 Reattach pilot tube to pilot and securely tighten See Pilot Tube Figure 2 12 Replace main gas burner tubes P N 240009725 Rev C 10 2012 NATURAL GAS TO LP CONVERSION INSTRUCTIONS 13 Remove cover screw from gas valve pressure regulator See Figure 3 14 Remove adjustment screw by turning counterclockwise yi N See Figure 4 15 Remove stainless steel natural gas spring 16 Insert Red LP gas spring 17 Install new adjustment screw Assure screw top is flush with regulator top 18 Turn pressure regulator adjustment screw clockwise o eleven 11 complete turns This is starting point for manifold pressure 19 Install manometer to pressure tap on outlet side of gas valve See Figure 3 NOTE Gas inlet pressure should be between minimum of 11 w c and maximum of 14 w c 20 Turn electric and gas supply ON A DANGER Fire Hazard Do not use matches candles open flames or other methods providing ignition source Failure to comp
3. CONVERSION KIT INSTRUCTIONS NATURAL DRAFT CAST IRON SERIES II GAS FIRED BOILERS FOR FORCED HOT WATER NATURAL GAS TO LP CONVERSION MGB OMGB MCB DXL SI ZES THROUGH 200 MBTU Kit s 550002663 550002664 550002665 TABLE 1 Kit 550002663 550002664 550002665 50 100 PART PART PART Pilot Orifice Spark PB00208 Conversion kit shall be installed by qualified service agency in accordance with manufacturer s instructions and all applicable codes and requirements of authority having jurisdiction If information in these instructions is not followed exactly a fire explosion or production of carbon monoxide may result causing personal injury or loss of life Qualified service agency is responsible for proper installation of this kit Installation is not proper and complete until operation of converted appliance is checked as specified in manufacturer s instructions supplied with the kit Label Nat to LP 240004822 Conversion Plate Liquid Sealing 140010 Compound Spring Kit 1272030 0000725 T Figure 1 Burners Assembly Tools Required e Flat Head Screwdriver e 1 4 Nut Driver e 7 16 Open Ended Wrench BURNERS e 3 16 Allen Wrench KNOB e 18 Manometer or dial manometer Ki Converting Boiler From Natural Gas To Propane LP 1 Follow instruction TO TURN OFF GAS TO APPLIANCE Verify electrical power is OFF ORIFICES lt 2 Remove front panel l PAOD 3 Remove burner access door
4. ly will result in death or serious injury 21 Check for gas leaks around all gas connections using commercially available soap solution specifically made for leak detection 22 While boiler is running adjust manifold pressure to 11 water column by turning pressure regulator adjustment screw Check for CO and CO levels to assure proper operation 23 Turn electric and gas supply OFF 24 Remove manometer Replace pressure tap cover screw securely 25 Install Black LP gas regulator adjustment cover screw with o ring See Figure 4 26 Mount conversion label on gas valve found in spring kit 27 Turn electric and gas supply ON 28 Cycle boiler to ensure proper operation and lighting 29 Replace front panel NOTE Complete following steps to provide proper identification for customer service or technical support issues 30 Copy serial number from old rating plate to new one 31 Mount new rating plate adjacent to old one Parts for steps 16 17 25 and 26 are located in Honeywell LP gas conversion kit HW 393691 ECR 1272030 for VR8204 and VR8304 gas valves Figure 3 Gas Valve PRESSURE REGULATOR ADJUSTMENT BENEATH COVER SCREW OUTLET PRESSURE TAP INLET PRESSURE TAP PILOT FLOW ADJ SCREW BENEATH COVER SCREW Figure 4 Gas Valve Adjustment Screw Assembly S ___ CAP SCREW ome __ O RING E ee ADJUSTMENT SCREW 2 SPRING Boiler Size Orifice Manufacturer
Download Pdf Manuals
Related Search