Wiring Diagram for the Piper PA-23 Aztec

marked H2B, running from the old heater terminal 2 to the safety valve on the firewall. In the new installation this wire will connect from the fuel pump or shutoff valve over to the new heater terminal strip number 2. B. Heater Electrical Connection (Figure 3): Remove the old heater control switch. Locate and identify the wire running from the heater circuit breaker to the old heater switch. The new heater requires a 20 amp fuse. Marking on this old wire will be H3A. This wire is to be connected to the red wire on the new switch. Route the remaining wires (blue, white, and two yellow) to the new heater. Secure in route in accordance with AC 43.13-1A Chapter 12 for Electrical applications. The blue wire from the new switch is for the vent fan and will be connected to the heater terminal strip number 6. The white wire is connected to the heater terminal strip number 1. C. Thermostat (see step 2D): Connect thermostat red wire to the heater terminal 2 and blue wire to terminal 3. The two yellow wires are to join the switches yellow wires, in any order. D. Combustion Air Blower: Black wire to airframe ground, red wire to heater terminal strip #1. E. Old Wiring: CAUTION: The old wire marked H3A or H3B is hot any time the master switch is on. Remove or secure the ends of the old wiring. Optional hour meter is connected to terminal #2. Optional overheat light may be connected to terminal #4 on the heater strip. TO AIRFRAME GROUND OPTIONAL HEAT CONTROL HEAT JUMPER CA 20/15 AMP OFF BLUE CR 12/24 VDC 20/15 AMP WHITE WHITE FAN BLUE YELLOWOR FOLLOW OR ORANGE DRANGE BLACK OPTIONAL OVERHEAT WARNING LAMP TWITCH, ROTARY P/N C320654 3 POLE/12 POSITION OPTIONALY HOUR METER BLUE ADTABLE! PCB SWITCH 4 VENTILATING AIR BLOVER OPTIONAL CAPACITOR FLACK RED 24V GREEN 12VT CYCLING SWITCH RED BLUE MITZLE SOLENGED TYPICAL AIRCRAFT CONTROLS COMBUSTION AIR BLOWER K FUEL CELL RED 24 VT GREEN 12 VT FUEL PUMP AND/OR SHUT OFF VALVE COMBUSTION HEATER TERMINAL STRI AIR PRESSURE SWITCH OVER HEAT SWITCH FIGURE 3 IGNITION IGNITION UNIT LEAD SPARK PLUG BLACK ASSEMBLED ON HEATER FAA APPROVED су SEP 07 2004 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION 4. Follow the 'Combustion Heater PREFLIGHT/OPERATIONAL CHECK AND SHUTDOWN PROCEDURE' outlined within the Combustion Heater "Air-worthiness Limitations", First Edition, Revision B, dated 01-01-00, or later revision, included with these instructions. This FAA-approved Airworthiness Limitations must become a permanent part of the Aircraft Operations and Procedures manual. 5. NOTE: Full compliance with the enclosed 'Combustion Heater Airworthiness Limitations' is required. 6. NOTE: Removal of the combustion heater and the installation of the C&D Assoc. Products TSO-C20 approved heater will have no affect on electrical load. 7. NOTE: Weight and balance change: Remove South Wind heater weighing 23 pounds and install C&D heater weighing 28 pounds. 302 POST ROAD, BUCHANAN, MI, 49107 USA PH: 269-695-7469 FX: 269-695-6004 WEB: www.aircraftheater.com EMAIL: sales@aircraftheater.com C&D ASSOCIATES, INC. DOCUMENTATION AND PARTS REQUIREMENT TABLE DOCUMENTATION 1. FAA/PMA Supplement # 27 2. Installation Instructions IN11005K2 3. Label for flight manual 4. MM10000 Maintenance Manual 5. Quality Assurance Certificate of Compliance #527 6. Flight Manual Supplement FM11005K2 PARTS IN11005K2 Page 3 of 3 3-15-01 Rev B Dated 7/29/04 Quantity S/N 1. Heater CD11005 2. (1) Adj. Solid State Duct Sw. 21253 3. (1) Exhaust Extension Assembly 25118 4. (1) Blower Assembly 21414 5. (4) Worm Drive Clamps 1½" 6. (2) Bracket, Mount 21191B 7. (6) Bolt 8. (6) Nuts 9. (6) Washer 10. (2) Clamp, Worm 11. (2) Clamps (7 3/4") AN4-4A MS-20365-428 AN960-416 3" SAE #16 12. (18") Drain Hose w/Clamps 21279 13. (1) Switch, Rotary 20654 14. (1) Retainer Assembly 20632 15. (13") Fuel Line #3 w/ hardware 21081 16. (40") Fuel Line #3 w/ hardware 21081 17. (12") 12" x 12" Sceet-6 Sceet-6 18. (24") 12" x 24" Scat-6 19. (1) Regulator, 7.5 Scat-6 20800 20. (1) Elbow, 1/8" NPT Male-Female 60024 21. (2) Adapter 22. (1) Fuel Pump AN816-3D 21197 FAA APPROVED су 23 (1) Elbow AN822-3D Initials: Date: -SEP 07 7004 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION 302 POST ROAD, BUCHANAN, MI, 49107 USA PH: 269-695-7469 FX: 269-695-6004 WEB: www.aircraftheater.com EMAIL: sales@aircraftheater.com C&D ASSOCIATES, INC. HEATER INSTALLATION INSTRUCTIONS FOR MODEL CD25K KIT, P/N CD11005K1 For Piper Aircraft PA-23, PA-23-160, PA-23-235 (12VDC) Apache S/N 23-1 and up, S/N 27-505 thru 27-622. READ COMPLETE INSTRUCTIONS BEFORE BEGINNING INSTALLATION IN11005K1 Page 1 of 2 3-15-01 Rev- 1. Follow the Aircraft Service Manual or other FAA approved source for removal of the existing combustion heater. 2. Install the C&D Associates, Inc., TSO-C20 Approved combustion heater utilizing the existing Aircraft Service Manual or other FAA approved source where applicable. A. Remove the old safety valve and fuel filter assembly from the firewall. For carborated aircraft install the new fuel pump (CD21197) with the safety wired end cap down, using the legs of the pump as a template for the new bolt pattern. Replace the fuel lines with those included with the kit. B. Replace the old exhaust pipe and shroud and shroud retainer with the new ones included with the heater kit. Secure the exhaust pipe and shroud with two stainless steel 10/32 bolts supplied with exhaust pipe. The shroud retainer will replace the old one in the A/C skin. C. Combustion Air Blower: If room permits locate the combustion air blower on the heater using the mounting bracket P/N 21191B and two six inch clamps. (Figure 1) If room does not permit, discard the bracket and two clamps and install the combustion air blower above the heater on the existing shelf. Connect the combustion air hose (red) as shown. (Figure 2) FIGURE 1 FIGURE 2 C&D ASSOCIATES Optional combustion air blower installation locations. FAA APPROVED NOV 05 2001 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION D. The adjustable duct switch P/N CD21253 is to be installed aft of the heater in the plenum. Make two 1/16" holes 2-5/8" apart in a convenient location. Half way between the 1/16" holes, drill a 1/2" hole for the thermister and mount the switch using two sheet metal screws. 302 POST ROAD, BUCHANAN, MI, USA PHONE: 616-695-7469 FAX: 616-695-6004 C&D ASSOCIATES, INC. IN11005K1 Page 2 of 2 3-15-01 Rev- 3. Electrical: This heater installation comes with a new heater control switch P/N CD20654. This switch replaces the old heater wiring, old heater control switch and high-low switch if equipped. A. Remote shutoff (Fuel injected only) or fuel pump: There is only one wire you may want to reuse. Locate this wire, marked H2B, running from the old heater terminal 2 to the safety valve on the firewall. In the new installation this wire will connect from the fuel pump or shutoff valve over to the new heater terminal strip number 2. B. Heater Electrical Connection (Figure 3): Remove the old heater control switch. Locate and identify the wire running from the heater circuit breaker to the old heater switch. Marking on this old wire will be H3A. This wire is to be connected to the red wire on the new switch. Route the remaining wires (blue, white, and two yellow) to the new heater. Secure in route in accordance with AC 43.13-1A Chapter 12 for Electrical applications. The blue wire from the new switch is for the vent fan and will be connected to the heater terminal strip number 6. The white wire is connected to the heater terminal strip number 1. C. Thermostat (see step 2D): Connect thermostat red wire to the heater terminal 2 and blue wire to terminal 3. The two yellow wires are to join the switches yellow wires, in any order. D. Combustion Air Blower: Black wire to airframe ground, red wire to heater terminal strip #1. E. Old Wiring: CAUTION: The old wire marked H3A or H3B is hot any time the master switch is on. Remove or secure the ends of the old wiring. Optional hour meter is connected to terminal #2. Optional overheat light may be connected to terminal #4 on the heater strip. CB WHITE VENTILATING AIR BLOWER 12/24 VDC 20/15 AMP BLUE 6 YELLOW YELLOW SWITCH, ROTARY 3 POLE/12 POSITION (OPTIONAL) OVERHEAT WARNING LAMP 5 TYPICAL AIRCRAFT CONTROLS ADJUSTABLE DUCT SWITCH 2 (OPTIONAL) HOUR METER COMBUSTION AIR BLOWER COMBUSTION AIR PRESSURE SWITCH CYCLING SWITCH IGNITION UNIT IGNITION LEAD FUEL NOZZLE FUEL SOLENOID SPARK PLUG FAA FUEL CELL FUEL PUMP AND/OR SHUT OFF VALVE FIGURE 3 OVER HEAT SWITCH ASSEMBLED ON HEATER APPROVED NOV 05 2001 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION 4. Follow the 'Combustion Heater PREFLIGHT/OPERATIONAL CHECK AND SHUTDOWN PROCEDURE outlined within the Combustion Heater "Air-worthiness Limitations", First Edition, Revision B, dated 01-01-00, or later revision, included with these instructions. This FAA-approved Airworthiness Limitations must become a permanent part of the Aircraft Operations and Procedures manual. 5. NOTE: Full compliance with the enclosed 'Combustion Heater Airworthiness Limitations' is required. 6. NOTE: Removal of the combustion heater and the installation of the C&D Assoc. Products TSO-C20 approved heater will have no affect on electrical load. 7. NOTE: Weight and balance change: Remove South Wind heater weighing 23 pounds and install C&D heater weighing 28 pounds. 302 POST ROAD, BUCHANAN, MI, USA PHONE: 616-695-7469 FAX: 616-695-6004 C&D ASSOCIATES, INC. HEATER INSTALLATION INSTRUCTIONS FOR MODEL CD25K KIT, P/N CD11006K2 For Piper Aircraft PA-E23-250, PA-23-250 (24VDC) Aztec S/N 27-259 thru 27-364, 27-402, 27-2298, 27-2331. READ COMPLETE INSTRUCTIONS BEFORE BEGINNING INSTALLATION IN11006K2 Page 1 of 2 3-15-01 Rev- 1. Follow the Aircraft Service Manual or other FAA approved source for removal of the existing combustion heater. 2. Install the C&D Associates, Inc., TSO-C20 Approved combustion heater utilizing the existing Aircraft Service Manual or other FAA approved source where applicable. A. Remove the old safety valve and fuel filter assembly from the firewall. For carborated aircraft install the new fuel pump (CD21199) with the safety wired end cap down, using the legs of the pump as a template for the new bolt pattern. Replace the fuel lines with those included with the kit. B. Replace the old exhaust pipe and shroud and shroud retainer with the new ones included with the heater kit. Secure the exhaust pipe and shroud with two stainless steel 10/32 bolts supplied with exhaust pipe. The shroud retainer will replace the old one in the A/C skin. C. Combustion Air Blower: If room permits locate the combustion air blower on the heater using the mounting bracket P/N 21191B and two six inch clamps. (Figure 1) If room does not permit, discard the bracket and two clamps and install the combustion air blower above the heater on the existing shelf. Connect the combustion air hose (red) as shown. (Figure 2) FIGURE 1 FIGURE 2 CC ASSOCIATES Optional combustion air blower installation locations. FAA APPROVED NOV 05 2001 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION D. The adjustable duct switch P/N CD21253 is to be installed aft of the heater in the plenum. Make two 1/16" holes 2-5/8" apart in a convenient location. Half way between the 1/16" holes, drill a 1/2" hole for the thermister and mount the switch using two sheet metal screws. 302 POST ROAD, BUCHANAN, MI, USA PHONE: 616-695-7469 FAX: 616-695-6004 C&D ASSOCIATES, INC. IN11006K2 Page 2 of 2 3-15-01 Rev- 3. Electrical: This heater installation comes with a new heater control switch P/N CD20654. This switch replaces the old heater wiring, old heater control switch and high-low switch if equipped. A. Remote shutoff (Fuel injected only) or fuel pump: There is only one wire you may want to reuse. Locate this wire, marked H2B, running from the old heater terminal 2 to the safety valve on the firewall. In the new installation this wire will connect from the fuel pump or shutoff valve over to the new heater terminal strip number 2. B. Heater Electrical Connection (Figure 3): Remove the old heater control switch. Locate and identify the wire running from the heater circuit breaker to the old heater switch. Marking on this old wire will be H3A. This wire is to be connected to the red wire on the new switch. Route the remaining wires (blue, white, and two yellow) to the new heater. Secure in route in accordance with AC 43.13-1A Chapter 12 for Electrical applications. The blue wire from the new switch is for the vent fan and will be connected to the heater terminal strip number 6. The white wire is connected to the heater terminal strip number 1. C. Thermostat (see step 2D): Connect thermostat red wire to the heater terminal 2 and blue wire to terminal 3. The two yellow wires are to join the switches yellow wires, in any order. D. Combustion Air Blower: Black wire to airframe ground, red wire to heater terminal strip #1. E. Old Wiring: CAUTION: The old wire marked H3A or H3B is hot any time the master switch is on. Remove or secure the ends of the old wiring. Optional hour meter is connected to terminal #2. Optional overheat light may be connected to terminal #4 on the heater strip. св WHITE VENTILATING AIR BLOWER 12/24 VDC 20/15 AMP BLUE 6 YELLOW YELLOW (OPTIONAL) OVERHEAT WARNING LAMP 5 SWITCH, ROTARY 3 POLE/12 POSITION 4 FUEL NOZZLE CYCLING SWITCH T TYPICAL AIRCRAFT CONTROLS (OPTIONAL) HOUR METER ADJUSTABLE DUCT SWITCH COMBUSTION AIR BLOWER IGNITION UNIT IGNITION LEAD COMBUSTION AIR PRESSURE SWITCH OVER HEAT FUEL PUMP SWITCH FUEL CELL AND/OR SHUT OFF VALVE FIGURE 3 ASSEMBLED ON HEATER SPARK PLUG FUEL SOLENDID Hi FAA APPROVED NOV 05 2001 CHICAGO AIRCRAFT CERTIFICATION OFFICE CENTRAL REGION 4. Follow the 'Combustion Heater PREFLIGHT/OPERATIONAL CHECK AND SHUTDOWN PROCEDURE' outlined within the Combustion Heater "Air-worthiness Limitations", First Edition, Revision B, dated 01-01-00, or later revision, included with these instructions. This FAA-approved Airworthiness Limitations must become a permanent part of the Aircraft Operations and Procedures manual. 5. NOTE: Full compliance with the enclosed 'Combustion Heater Airworthiness Limitations' is required. 6. NOTE: Removal of the combustion heater and the installation of the C&D Assoc. Products TSO-C20 approved heater will have no affect on electrical load. 7. NOTE: Weight and balance change: Remove South Wind heater weighing 23 pounds and install C&D heater weighing 28 pounds. 302 POST ROAD, BUCHANAN, MI, USA PHONE: 616-695-7469 FAX: 616-695-6004