21-010-159M.TIF 2125x2750 x 2 - ACE Thermal Systems

and a stream of low pressure dry air. B. Inspection To avoid invalidating warranty, the following procedure must be followed: 1. Dual Polyflex Belts a. After five (5) hours or airconditioning operation, tension belts to 30 pounds. b. Each time belts are removed and/or replaced, initial tension must be 30 pounds. After one-half (1/2) hour of ground operation, tension to 30 pounds. Run one-half (1/2) hour and tension - then follow 1. 2. Single 3/8" "V" Belt Maintain belt tension at 40-50 pounds. This is quivalent to deflecting the belt .3 inch, measured at the center span, with a 10 pound load being applied perpendicular to the belt. b. After installing a new belt, reset tension again after approxi- mately one hour of operation. Every 100 hours inspect the airconditioning system for the following: 1. Security of mounting 2. Compressor and fan belt or belts for proper tension 3. Sight gauge for proper refrigerant level 4. Empty condensate tank (Not all units) 5. Remove lint and grease from evaporator with a vacuum C. Repair and Servicing Repair to the airconditioning system is limited to the replacement of components. SAFETY PRECAUTIONS This The refrigerant used in the airconditioning system is R-12. refrigerant is non-explosive, non-inflammalbe, non-corrosive, has practically no odor, and is heavier than air. Although R-12 is class- ified as a safe refrigerant, certain precautions must be observed to protect parts involved and the person working on the unit. SERVICE AND MAINTENANCE MANUAL SAFETY PRECAUTIONS cont'd 35 Liquid R-12, at normal atmosperic pressure and temperature, evaporates so quickly that it tends to freeze anything that it contacts. Care must be taken to prevent any liquid refrigerant from coming in contact with the skin and especially the eyes. R-12 is readily absorbed by most types of oil. Therefore, it is recommended a bottle of clean mineral oil and weak solution of boric acid be kept nearby when servicing the refrigerant system. CAUTION ALWAYS NEAR SAFETY GOGGLES WHEN SERVICING ANY PART OF THE REFRIGERANT ✓ SYSTEM. SHOULD ANY LIQUID REFRIGERANT GET INTO THE EYES, USE A FEW DROPS OF MINERAL OIL TO WASH THEM OUT, THEN USE A WEAK SOLUTION OF BORIC ACID TO WASH EYES, AND SEEK AID FROM A DOCTOR IMMEDIATELY EVEN THOUGH THE IRRITATION HAS CEASED. It is important to keep the system tightly sealed, because the refrigerant system is always under pressure. Heat applied to any part would cause this pressure to build up excessively. WARNING TO AVOID EXPLOSION, NEVER WELD, USE A BLOW TORCH, SOLDER, STEAM CLEAN, BAKE AIRCRAFT FINISH OR USE EXCESS AMOUNTS OF HEAT ON, OR IN THE IMMEDIATE AREA OF ANY PART OF THE AIR COOLING SYSTEN OR REFRIGERANT SUPPLY TANK, WHILE THEY ARE CLOSED TO ATMOSPHERE WITH REFRIGERANT OR NOT. ALTHOUGH R-12, GAS, UNDER NORMAL CONDITIONS, IS NON-POISONOUS, THE DISCHARGE OF REFRIGERANT GAS NEAR AN OPEN FLAME CAN PRODUCE A VERY POISONOUS GAS. THIS GAS WILL ALSO ATTACH ALL BRIGHT METAL SURFACES. THIS POISONOUS GAS IS ALSO GENERATED IN SMALL QUANTITIES WHEN A FLAME- TYPE LEAK DETECTOR IS USED. When checking the system for leaks, the system should be allowed to operate from 10 to 15 minutes prior to checking. CAUTION THE USE OF A FLAME-TYPE LEAK DETECTOR IS NOT RECOMMENDED FOR USE ON AIRCRAFT BECAUSE OF FIRE HAZARD. The use of the electronic leak detector H-10 is recommended; however. if the H-10 leak detector is not available, leak detector solution conforming to MIL-L-25567 can be used to check each fitting, hose connection and airconditioning component. CHECKING COMPRESSOR OIL LEVEL Check the compressor oil level only if a portion of the refrigerant system is being replaced or if there is a leak in the system and the refrigerant is being replaced. a) Operate airconditioning system for 15 minutes in temperatures of 60° F or above. b) Turn off airconditioner. c) Discharge the refrigerant system in accordance with Discharge.Procedures. d) Remove the oil filler plug from the compressor, rotate compressor until the keyway in the shaft is pointing towards the head of the compressor. This places the throws of the crankshaft into most favorable position for passage of the dipstick. Insert a flattened 1/8 inch diameter rod in the oil filler hold until it bottoms. The rod should show from 13/16 inch to 1-3/16 inch of oil on the rod. The oil charge should be maintained between 6 ounces and 10 ounces maximum for best results. f) If additional oil is needed in the compressor, add Sunisco 5 or Capella E refrigerant compressor oil, or. equivalent. g) Replace oil filler plug, evacuate and charge refrigerant system in accordance with Evacuating and Charging Procedures. h) Check compressor filler plug for leaks using the H-10 Leak Detector or Leak Tek MIL-L-25567. -COMRESSOR CONDENSER RECEIVER DRIER SIGHT GLASS FIG.J · AIRFLOW - CONDENSER COOLING WARM AIR RETURN EVAPORATOR COOL. All TO CABIN EXPANSION VALVE SIMPLIFIED PROCEDURES FOR CHARGING AND TESTING VAPOR CYCLE - FREON 12 AIRCONDITIONING SYSTEMS These procedures apply to all conditions of charging and testing. 1. Check all hose and fitting connections to be sure they are tight. This includes all factory or assembly line connections, as well as the connections you make. 2. Connect vacuum pump with hoses to both suction and discharge ser- vice valve ports. Turn both compressor service valves approxi- mately 4 turns clockwise from back seated position. (If installed.) 3. Pull vacuum on system for 20 minutes. Low pressure gauge should read about 23 inches of vacuum at 6000 feet altitude or 29 inches of va- cuum at sea level within 5 minutes. If this is not attained, you should suspect a leak, in which case, shut off vacuum pump, charge enough R-12 into the system to show 30 PSI on both gauges, and check for leak with Sherlock or Halide Leak Detector. After leaks are repaired, repeat point 3 above. 4. After vacuum is obtained, shut off both valves on charging manifold. Then shut off vacuum pump. Next, connect charging line from mani- fold to R-12 cylinder. Open cylinder valve and bleed charging line at manifold. With R-12 cylinder valve open, and line bled, open low pressure (suc- tion) line valve on manifold, and charge unit until 70 PSI is shown on both gauges, or until pressure stops rising. 5. You are now ready to run and charge the system. Start the system and continue to charge the unit until sight glass clears. Observe glass carefully, and stop charging immediately as soon as bubbles disappear in sight glass. This is important as overcharging electrically driven system can result in damage to the drive motor. Always charge with cylinder in upright position. If cylinder becomes very cold, indicating too low a pressure to force vapor into system, heat cylinder by placing it in a container of warm water. 6. When charging is finished, shut system off, and check every connection with Electronic Leak Detector. If any leak is detected, repair com- pletely before you release unit for shipment or to a customer. 10. } ASSEMBLY INSRUCTIONS for Nylon Hose and Reusable Fittings In order to keep foreign objects and debris out of components attached to these lines, it is recommended that the hose be cut with a sharp knife rather than a hacksaw. Any burrs or loose particles should be removed from within the end of the hose and from the end of the hose before assembly. This will prolong equipment life. It is especially important that on hand assembly within the aircraft these cleanliness measures be observed. Overall Assembly Length Length of hose- AEROQUIP NYLON To determine length of hose, deduct "D" dimensions of both fittings from over- all assembly length. STEP 1 Cut hose square to length. Put socket in vise and screw counter-clockwise into socket until hose bottoms. STEP 2 Oil nipple threads and inside of hose liberally. *Use compressor oil only. STEP 3 Screw nipple clockwise into socket and hose until hex contacts socket. "Hex "Nipple LO. Part number JBS-48 -1 Vendor part number (FC9158-0606S FC9158-0808S O.D. tube cut- off size thread A D E F 3/8 5/8-18 2.26 1.48 .28 .75 1/2 |3/4-16 | 2.84 | 1.68 | -40 .94 ADDENDUM B TO SERVICE AND MAINTENANCE MANUAL AIRCONDITIONING SYSTEM DATA FOR CESSNA 210 SERIES AND P210 ENGINE DRIVEN SYSTEM DESCRIPTION May 5, 1978 Revised: 4-25-79 Revised: 6-07-79 Keith Products airconditioning is composed of three (3) major component packages: 1. The engine driven compressor on the left rear side of the engine; 2. The condenser unit mounted in the tailcone, on the left hand side of the aircraft; 3. 210 Series: the evaporator unit mounted on the wheel well in the baggage compartment and connected to overhead air ducts above windows on each side. P210 Series: the evaporators located under the forward outboard corner of the rear seat connected to side wall ducts on each side. Switches and circuit breakers are mounted on the left hand upholstery panel, just aft of the instrument panel, or on the panel itself. The receiver drier unit mounted in the tailcone on the left hand side of the aircraft in the 210 series and under the aft seat in the P210 series. SERVICING This unit is serviced the same as the instructions given in the accompanying service manual except the engine must be running to accomplish the items needing system acti- vation. One service tap is normally located at the intake of the evaporator, the other in the tailcone behind the rear baggage wall. The rear baggage compartment up- holstery panel and access door must be opened to get at the receiver drier and the high pressure service tap. On the P210 series, the high pressure tap is under the aft seat with the receiver drier. BELT TENSION 1. 60 amp alternator - belt tension should be 25-35 pounds for the compressor belt and 50-60 pounds for the alternator drive belt. Use these figures instead of the one in the service manual. 2. 90 amp alternator - belt tension should be 25-35 pounds for the compressor belt and 60-70 pounds for the alternator drive belt. Use these figures instead of the one in the service manual. OPERATION When the toggle switch is in the "ON" position, the system is operating. The fan switch gives two (2) fan speeds for the evaporator fan. When the toggle switch is in the "OFF" position, the compressor clutch is disengaged and the pulley freewheels, essentially taking no horsepower from the engine. CAUTION A placard on the airconditioning switch panel reads "Turn Off Airconditioner for Takeoff and Landing". This is to avoid engine power loss due to system, during nerinds of critical flight requirements. Keith Products, Inc. 4554 Claire Chennault Dallas, Texas 75248 AIRPLANE FLIGHT MANUAL SUPPLEMENT FOR CESSNA MODELS: 210K, L, M, N; T210K, L, M, N and P210N WITH AIR CONDITIONING SYSTEM INSTALLATION REGISTRATION NO. SERIAL NO. This supplement must be attached to the FAA Approved Flight Manual when an R-12 or R134a Air Conditioning System is installed in accordance with STC SA71RM and SE70RM. The information contained herein supplements or supersedes the information of the basic Airplane Flight Manual only in those areas listed. For Limitations, Procedures and Performance Data not contained in this supplement, consult the basic Airplane Flight Manual. FAA APPROVED MAY 07 1997 DATE: REVISION: 4 APPROVED: Menill A. J. Merrill, Manager Special Certification Office Federal Aviation Administration Fort Worth, Texas 76193-0190 MAY 07 1997. Date: Page 1 of 4 Keith Products, Inc. 4554 Claire Chennault Dallas, Texas 75248 AIRPLANE FLIGHT MANUAL SUPPLEMENT FOR CESSNA MODELS 210, T210, P210 STC SA71RM and STC SE70RM AIR CONDITIONING SYSTEM LOG OF REVISIONS REVISION PAGES NUMBER DESCRIPTION FAA APPROVED NO. DATE ALL Original Manual WRB 1 Sht 1 6-7-79 Added Model P210N WRB 1 Sht 3 6-7-79 Added Revision 1 WRB 2 Sht 1 4-18-80 Revised Mag Compass WRB limitation Added note to Normal Procedure Section Sht 2 Revised Performance Section 3 ALL 9-17-80 Revised to reflect new company name. GEG 4 ALL 7-14-95 Changed to new format. Added Models 210K, L, M; T210K,L,M Changed Parker Hannifin Corp., Airborne Div. to Keith Products Page 1: was "Airborne airconditioning system", now R-12 or R134a. Added Contents Page of menill FAA APPROVED DATE: REVISION: MAY 07 1997 4 Page 2 of 4