Page 2 - Table Of Contents
1 Table Of Contents Important Safety Information .......................................................................................................................................... 2-4 Unit Identifi cation ..........................................................................................
Page 3 - IMPORTANT SAFETY INFORMATION; PERSONAL INJURY OR DEATH HAZARDS; Your safety and the safety of others are very important.; WARNING; NOTICE
IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualifi ed service technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this produc...
Page 4 - REFRIGERATION SYSTEM HAZARDS:
• Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning. • Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditi...
Page 5 - PROPERTY DAMAGE HAZARDS; Connect to a properly grounded outlet only.; WATER DAMAGE HAZARDS:; can result in water damage to personal items or property.; INTRODUCTION; IMPORTANT
PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS: • Read the Installation/Operation Manual for this air conditioning unit prior to operating. • Use air conditioner on a single dedicated circuit within the specifi ed amperage rating. • Connect to a properly grounded outlet only. • Do not remove ground pro...
Page 6 - Model Number Code; RAC Serial Number Identifi cation Guide; UNIT IDENTIFICATION
Serial Number Decade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 A A A Y 00001 Production Run Number Year Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Product Line X-Start Month Manufactured A=Jan D=Apr G=Jul K=Oct B=Feb E=May H=Aug L=Nov C=Mar F=Jun J=Sept M=Dec 1st Digit – Functio...
Page 7 - PERFORMANCE DATA; Installation Information / Sleeve Dimensions; Window Mounting Kits
PERFORMANCE DATA * Installation Information / Sleeve Dimensions * Minimum extensions when mounted in a window.** Minimum widths achieved using one side cur tain assembly as opposed to both in a standard installation. Circuit Rating/ Breaker (B) (C) Front SIDE VIEW Model C ircuit Rating Breaker or T-...
Page 8 - ELECTRICAL DATA; ELECTRIC SHOCK HAZARD; FIRE HAZARD; *HACR: Heating Air Conditioning and Refrigeration
ELECTRICAL DATA ELECTRIC SHOCK HAZARD WARNING Turn off electric power before service or installation. All electrical connections and wiring MUST be installed by a qualifi ed electrician and conform to the National Electrical Code and all local codes which have jurisdiction. Failure to do so can resu...
Page 10 - How to operate the Friedrich room air conditioner; Figure 5; Figure 3
To start unit s i ti , e l c a t p e c e r r e p o r p a o t n i d e g g u l p d n a d e ll a t s n i s i r e n o it i d n o c ri a r u o y fI ready to go. The first time the unit is started, the compressor will delay for threeminutes. See Automatic Component Protection on the following page. 1 Touc...
Page 11 - How to use the remote control; How To Operate The EQ08; Function Control Knob
To set the timer NOTE: You can set the START and STOP times a minimum of one hour apart, and a maximum of 23 hours apart. 9 TIMER START - Press Start . g n il o o c r o f e m it t r a t s t n e r r u c e h t w e i v o t Continue pressing the Start button until you arrive at the start time you desire...
Page 12 - ELECTRONIC CONTROL SEQUENCE OF OPERATION
MODE CONTROL The mode control pad(s) allow the selection of the operating modes of the unit. There is a two second delay before the mode activates its appropriate relay. OPERATING SEQUENCE / CHARACTERISTICS AND FEATURESCompressor Operation The run state of the compressor is determined by the differe...
Page 13 - FUNCTIONAL COMPONENT DEFINITIONS
MECHANICAL COMPONENTS Plenum assembly Diffuser with directional louvers used to direct the conditioned air fl ow. Blower wheel Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned, room side air though the heat exchanger and delivering conditioned air into th...
Page 14 - COMPONENTS TESTING
13 TESTING THE ELECTRONIC CONTROL BOARDS FOR XQ MODELS Activating Test Mode: Activate test mode by pressing at the same time the “MODE” button and the “TEMP ” button on XQ models . LEDs for Hour, Start, and Stop will blink 1 bps while Test Mode is active. Test Mode has duration of 90 minutes. Test M...
Page 15 - TEST; Remove wires from thermostat; THERMOSTAT ADJUSTMENT; EQ08 SYSTEM CONTROL SWITCH - TEST; “EQ08” SYSTEM CONTROL SWITCH – TEST
TEST: 1. Remove leads from thermostat. 2. Tu r n t h e r m o s t a t k n o b c l o c k w i s e t o i t s c o l d e s t position. 3. Test for continuity between the two terminals. Contacts should be closed. 4. Turn thermostat knob counterclockwise to its warmest position. 5. Test for continuity - con...
Page 16 - CAPACITORS; Capacitor Check with Capacitor Analyzer; the test switch is released.; Capacitor Connections; identifi ed terminal is; FAN MOTOR
CAPACITORS ELECTRIC SHOCK HAZARD WARNING Turn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handling. Failure to do so may result in personal injury, or death. Many motor capacitors are internally fused. Shorting the terminals will blow the fuse, r...
Page 17 - Should the fan motor fail or; TESTING THE HEATING ELEMENT
HEATING ELEMENT (See Figure) All electric heat models are equipped with a heating element. The EQ08 has a 1.15 KW element. The heating element contains a fuse link and a heater limit switch. The fuse link is in series with the power supply and will open and interrupt the power when the temperature r...
Page 18 - REFRIGERATION SEQUENCE OF OPERATION
Suction Line Evaporator Coil Metering Device Refrigerant Strainer Discharge Line Condenser Coil Compressor Refrigerant Drier Liquid Line A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooti...
Page 19 - R-410A SEALED SYSTEM REPAIR CONSIDERATIONS; Refrigeration system under high pressure
• R-410A pressure is approximately 60% higher than R-22 pressure. • R-410A cylinders must not be allowed to exceed 125 F, they may leak or rupture. • R-410A must never be pressurized with a mixture of air, it may become fl ammable. • Servicing equipment and components must be specifi cally designed ...
Page 20 - HIGH PRESSURE HAZARD; RISK OF ELECTRIC SHOCK; R-410A SEALED REFRIGERATION SYSTEM REPAIRS; Refrigerant Charging
Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will result in reduced performance (capacity) and/or effi ciency. Accordingly, the use of proper charging methods during servicing will insure that the unit is functioning as designe...
Page 21 - BURN HAZARD; Method Of Charging / Repairs
3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 200 microns or less. 6. Weigh in refrigerant with the property quantity of R410-A refrigerant. 7. Start unit, and verify performance. 8. Crimp the process tube and solder the end shut. Proper safet...
Page 23 - Restricted Refrigerant System
Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be diffi cult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions. A partial restricti...
Page 24 - Single Phase Connections; COMPRESSOR CHECKS; Exter nal Overload; With power off, remove the leads from compressor termi-
Locked Rotor Voltage (L.R.V.) Test Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition. Single Phase Connections Disconnect power from unit. Using a voltmeter, attach one lead of the meter to the run “R” terminal on the compressor and the other l...
Page 25 - Single Phase Resistance Test; GROUND TEST
Single Phase Resistance Test Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). Touch the leads of the ohmmeter from terminals common to start (“C” to “S”). Next, touch the leads of the ohmmeter from terminals common to run (“C” to “R”). Add values “C” t...
Page 26 - PROPER HANDLING OF; a fi nal vacuum of 200 microns or less. The system; COMPRESSOR REPLACEMENT; If any evidence of a burnout is found, no matter how
Recommended procedure for compressor replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. 2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF RECOVERED REFRIGERANT A...
Page 27 - EXPLOSION HAZARD; NEVER
1. 2. 3. 4. 5. ELECTRIC SHOCK HAZARD WARNING Turn off electric power before service or installation. Failure to do so may result in personal injury, or death. Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protectiv...
Page 28 - ROUTINE MAINTENANCE; AIR FILTER; EXCESSIVE WEIGHT HAZARD
ROUTINE MAINTENANCE AIR FILTER Clean the unit air intake fi lter at least every 300 to 350 hours of operation. Clean the fi lters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. COILS AND BASE PAN The indoor coil (evaporator coil), the outdoor coil (condenser coi...
Page 30 - ROOM AIR CONDITIONER UNIT; COMPRESSOR
29 29 Due to variations in room design, climate zone and occupancy, larger areas may require the use of multiple units to provide the optimal cooling solution. This is a general guide. Please consult manual J or M for exact load calculations. 1. If heavily shaded, reduce capacity 10%. 2. If very sun...
Page 31 - Unit does not operate.; GENERAL TROUBLESHOOTING TIPS
Problem Possible Cause Possible Solution Unit does not operate. The unit is turned to the off position, Turn the unit to the on position and raise or lower temperature setting (as appropriate) to call for operation. The LCDI power cord is unplugged. Plug into a properly grounded 3 prong receptacle. ...
Page 33 - COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS
COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS n o i t c A e s u a C e l b i s s o P m e l b o r P Compressordoes not run Low voltage Check voltage at compressor. 115V & 230V units will operate at 10% voltage variance T-stat not set cold enough or inoperative or electronic controlboard...
Page 37 - HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS
HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS n o i t c A e s u a C e l b i s s o P m e l b o r P Room temperature uneven (Heating cycle) Heat anticipator (resistor) shorted (on applicable models) Disconnect power to unit. Remove resistor from t-stat bulb block. Plug in unit & all...
Page 38 - ELECTRONIC CONTROL; Last character may vary.
37 ELECTRONIC CONTROL COOL ONLY MODELS: XQ05M10 * XQ06M10 * XQ08M10 * XQ10M10 * * Last character may vary.
Page 40 - only the exposure with the largest load.; Multiply the total square feet of; all; windows in the room by the applicable factor.; in use; Total the loads estimated for the foregoing 8 items.
4 INSTRUCTIONS FOR USING COOLING LOAD ESTIMATE FORM FOR ROOM AIR CONDITIONERS (AHAM PUB. NO. RAC-1) A. This cooling load estimate form is suitable for estimating the cooling load for comfort air conditioning installations which do not require specifi c conditions of inside temperature and humidity. ...
Page 41 - COOLING LOAD ESTIMATE FORM; HEAT GAIN FROM
5 COOLING LOAD ESTIMATE FORM HEAT GAIN FROM 1. WINDOWS: Heat gain from the sun. Northeast East Southeast South Southwest West Northwest North 2. WINDOWS: Heat by conduction (Total of all windows.) Single glass Double glass or glass block 3. WALLS: (Based on linear feet of wall) a. Outside walls Nort...
Page 42 - Following is an example using the heat load form:; The graph shows the following:; HEAT LOAD FORM
6 Following is an example using the heat load form: A space to be conditioned is part of a house geographically located in an area where the lowest outdoor ambient winter temperature is 40°F. The calculated heat loss is 184 BTU/Hr./°F. Subtract 40°F (lowest outdoor ambient temperature for the geogra...
Page 43 - CEILING
7 HEATING LOAD FORM FRIEDRICH ROOM UNIT HEAT PUMPS BTU/HR PER WALLS: (Linear Feet) °F TEMP. DIFFERENCE 2” Insulation Lin. Ft. x 1.6 Average Lin. Ft. x 2.6 WINDOWS & DOORS (Area, sq. ft.) Single Glass: Sq. Ft. x 1.13 Double Glass: Sq. Ft. x 0.61 INFILTRATION - WINDOWS & DOORS: AVG. Lin. Ft. x...
Page 44 - FIRST YEAR
43 Friedrich Air Conditioning Company 10001 Reunion Place, Suite 500 San Antonio, TX 78216 1-800-541-6645 www.friedrich.com ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from dat...
Page 45 - FRIEDRICH AIR CONDITIONING CO.
TECHNICAL SUPPORT CONTACT INFORMATION 44 FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216(210) 546-0500 877-599-5665 x 261 FAX (210) 546-0731 Email: [email protected] Printed in the U.S.A.
