Service & Parts Manual WallMaster ® Thru-the-Wall WS08B10A-C WS10B10A-C WS14B10A-C PM WS10B30A-C 72 Power Cool Fan Speed Mode ® Money Saver Fan Only Clock On/Off Timer Hour Set Start Time Stop Time Temp/Hour WS13B30B-C WS16B30A-C WE10B33A-B WE13B33B-B WE16B33A-B WY10B33A-B WY13B33A-B WM-Svc-Prts-07 (3-07)
TABLE OF CONTENTS Warranty .....................................................................................................................................................3 Routine Maintenance ................................................................................................................................4 Unit Identification ......................................................................................................................................5 Performance Data ...........
Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.friedrich.com WALLMASTER£ THRU-THE-WALL 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 date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible for service.
ROUTINE MAINTENANCE NOTE: Units are to be inspected and serviced by qualified service personnel only. Routine maintenance is required annually or semi-annually, depending upon annual usage. 1. Clean the unit air intake filter at least every 250 to 300 fan hours of operation or when the unit’s indicator light is on if so equipped. Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. 2.
FRIEDRICH ROOM MODEL NUMBER CODE W S 08 B 1 0 B 1st DIGIT - FUNCTION W = Thru-The-Wall, WallMaster Series 2nd DIGIT - TYPE S = Straight Cool E = Electric Heat Y = Heat Pump 3rd & 4th DIGITS - APPROXIMATE BTU/HR (Cooling) Heating BTU/HR capacity listed in Specifications/Performance Data Section 5th DIGIT - ALPHABETICAL MODIFIER 6th DIGIT - VOLTAGE 1 = 115 Volts 3 = 230-208 Volts 7th DIGIT 0 = Straight Cool & Heat Pump Models ELECTRIC HEAT MODELS 3 = 3 KW Heat Strip, Nominal 8th DIGIT Major Change
Cooling Capacity BTU/h 8000 10000 13500 10000/10000 12500/12000 15800/15000 10000/10000 12500/12000 15800/15000 10100/9800 12500/12100 Model # WS08B10A WS10B10A WS14B10A WS10B30A WS13B30B WS16B30A WE10B33A WE13B33B WE16B33A WY10B33A WY13B33A 25 28 28 25 29 28 27 29 28 27 29 — — — — — — 11000/9100 11000/9100 11000/9100 8100/7800 10400/10000 Heating Capacity BTU/h 55 53 52 53 52 51 54 52 51 54 52 E(in) 125V - 15A 250V - 15A 250V - 20A WS08B10A, WS10B10A, WS14B10A WS10B30A, WS13B30A, WS16B30A WE10
ELECTRICAL DATA Wire Size Use ONLY wiring size recommended for single outlet branch circuit. Fuse/Circuit Use ONLY type and size fuse or HACR Breaker circuit breaker indicated on unit’s rating plate. Proper current protection to the unit is the responsibility of the owner. Grounding Receptacle Unit MUST be grounded from branch circuit through service cord to unit, or through separate ground wire provided on permanently connected units.
FUNCTIONAL COMPONENTS A. Mechanical components Bellows condensate valve Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F and closes when the outside temperature reaches 58°F. Plenum assembly Diffuser with directional louvers used to direct the conditioned airflow.
SYSTEM CONTROL PANEL (“WS” Models) Figure 6: System Control Panel Activating Error Code Mode (Submode of Test Mode) Unit must be in Test Mode to enter Error Code Mode 1. PM 72 Power Cool Fan Speed Mode Money Saver® Fan Only Clock Timer On/Off Set Hour Start Time Stop Time Temp/Hour Activate Error Code Mode by pressing the “TIMER ON/OFF” button on XQ & WS models. LED for the “TIMER ON/OFF” will flash 1bps while Error Code Mode is active. Pressing the “TEMP/HR + ” button will display 00.
Frost Probe Sensor: Disables compressor at 35 degrees F +/- 3 degrees F Indoor Probe Sensor: Control range is 60 degrees F to 90 degrees F +/- 2 degrees F Indoor temperature will be displayed by pressing: (XQ / WS Units) The Fan Speed button and the Temp Up button. The indoor temperature will be displayed for 10 seconds. The display will change back to the Set Point temperature by pressing any key button except for the On/Off button. The indoor temperature can be viewed in all modes, including test mode.
REFRIGERATION SYSTEM SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more difficult and time consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows: 1. “Heat always flows from a warmer body to a cooler body.” 2.
SEALED REFRIGERATION SYSTEM REPAIRS EQUIPMENT REQUIRED: 1. Voltmeter HERMETIC COMPONENT REPLACEMENT The following procedure applies when replacing components in the sealed refrigeration circuit or repairing refrigerant leaks. (Compressor, condenser, evaporator, capillary tube, refrigerant leaks, etc.) 1. Recover the refrigerant from the system at the process tube located on the high side of the system by installing a line tap on the process tube.
10. 11. Evacuate system to maximum absolute holding pressure of 200 microns or less. NOTE: This process can be speeded up by use of heat lamps, or by breaking the vacuum with refrigerant or dry nitrogen at 5,000 microns. Pressure system to 5 PSIG and leave in system a minimum of 10 minutes. Release refrigerant, and proceed with evacuation of a pressure of 200 microns or less. Break vacuum by charging system from the high side with the correct amount of refrigerant specified.
TROUBLESHOOTING TOUCH TEST CHART: TO SERVICE REVERSING VALVES Tube to OUTSIDE COIL LEFT Pilot Capillary Tube RIGHT Pilot Capillary Tube 1 2 3 4 5 6 Hot as (1) *TVB TVB Cool as (2) *TVB TVB Tube to INSIDE COIL SUCTION TUBE to Compressor VALVE OPERATING CONDITION DISCHARGE TUBE from Compressor NORMAL FUNCTION OF VALVE Normal Cooling Hot Cool Cool as (2) Normal Heating Hot Cool Hot as (1) NOTES: * TEMPERATURE OF VALVE BODY ** WARMER THAN VALVE BODY POSSIBLE CAUSES CORRECTIONS MA
COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Compressor does not run Problem Fan motor does not run Problem Does not cool or only cools slightly Possible Cause Action Low voltage Check voltage at compressor. 115V & 230V units will operate at 10% voltage variance T-stat not set cold enough or inoperative Set t-stat to coldest position. Test t-stat & replace if inoperative Compressor hums but cuts off on B10 overload Hard start compressor. Direct test compressor.
Problem Unit does not run Problem Evaporator coil freezes up Problem Compressor runs continually & does not cycle off Problem Possible Cause Fuse blown or circuit tripped Power cord not plugged in Plug it in System switch in "OFF" position Set switch correctly Inoperative system switch Test for continuity in each switch position Loose or disconnected wiring at switch or other components Check wiring & connections.
Problem Compressor runs for short periods only. Cycles on overload Problem T-stat does not turn unit on Problem Noisy operation Problem Water leaks into the room Possible Cause Action Overload inoperative. Opens too soon Check operation of unit. Replace overload if system operation is satisfactory Compressor restarted before system pressures equalized Allow a minimum of 2 minutes to allow pressures to equalize before attempting to restart.
Problem Water "spitting" into room Problem Excessive moisture Problem T-stat short cycles Problem Prolonged off cycles (automatic operation) Problem Outside water leaks 18 Possible Cause Action Sublimation: When unconditioned saturated, outside air mixes with conditioned air, condensation forms on the cooler surfaces Ensure that foam gaskets are installed in between window panes & in between the unit & the sleeve.
HEAT / COOL ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Room temperature uneven (Heating cycle) Problem Possible Cause Heat anticipator (resistor) shorted (on applicable models) Disconnect power to unit. Remove resistor from t-stat bulb block. Plus in unit & allow to operate. Feel resistor for heat. If not heat, replace resistor Wide differential - partial loss of t-stat bulb charge Replace t-stat & check Incorrect wiring Refer to appropriate wiring diagram.
Problem Unit cools when heat is called for Problem Cooling adequate, but heating insufficient 20 Possible Cause Action Incorrect wiring Refer to applicable wiring diagram Defective solenoid coil Check for continuity of coil Reversing valve fails to shift Block condenser coil & switch unit to cooling. Allow pressure to build up in system, then switch to heating. If valve fails to shift, replace valve.
WIRING DIAGRAM: MODELS WS08B10A-C, WS10B10A-C, WS14B10A-C, WS10B30A-C, WS13B30C 21
WIRING DIAGRAM: MODELS WS16B30A-C 22
WIRING DIAGRAM: MODELS WE10B33A-B, WE13B33B-B 23
WIRING DIAGRAM: MODELS WE16B33A-B 24
WIRING DIAGRAM: MODELS WY10B33A-B, WY13B33A-B 25
46A 39 48 6 44 43 47 1 41 2 Electro Mechanical Control Box and Controls 1 46 8 For Heat & Cool Models Only 43 39 45 41 13 5 Electronic Control Box and Controls 18 27 19 20 12 25 26 31 32 30 7 16 17 14 WS, WE & WY SERIES CHASSIS PARTS
WALLMASTER PARTS 2007 * Part Not Shown 1 1 1 1 1 WY13B33A-B WY10B33A-B WE16B33A-B 1 1 WE13B33B-B 1 1 WE10B33A-B WS16B30A-C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 WE16B33A-B WS16B30A-C 1 1 1 1 WE13B33B-B 1 WE10B33A-B 1 1 1 1 1 1 1 WY13B33A-B 25022032 61824400 60308101 61828200 61562832 62199700 62199701 62199702 62199703 62199704 62102300 62103300 62103303 62103305 621
WALLMASTER PARTS 2007 1 WY13B33A-B 1 1 WY10B33A-B 1 1 1 WE16B33A-B 1 1 1 WE13B33B-B START KIT SLEEVE (ONLY) GRILLE, STAMPED 1 1 1 WE10B33A-B * 55 57 62102000 62101500 60610604 62100600 62100601 62102100 62100914 62100915 61606219 60179903 62101901 61028900 91400400 61715800 60640600 60640500 91003000 62100002 62100802 62101107 61911605 60865900 61900500 61925001 60865811 61607005 62103205 61612705 61612805 61613205 61578101 60846020 61717301 61841919 WS16B30A-C SHROUD, CONDENSER FAN BLADE, CO
WS - WE - WY SERIES SLEEVE PARTS REF 1 2 3 4 DESCRIPTION SLEEVE ASSEMBLY PANEL, WEATHER INNER GRILLE, LOUVERED PANEL, WEATHER OUTER PART NO.
Friedrich Air Conditioning Co. Post Office Box 1540 • San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway • San Antonio, Texas 78218-5212 (210) 357-4400 • FAX (210) 357-4480 www.friedrich.com Printed in the U.S.A.
