background image

78

Kϋhl Electronic Control

HEAT PUMP models

YS12N33-A, YM18M34-A

MEDIUM

LOW

HIGH

R

S

R

S

C

COMPRESSOR





F4

F3

NEUTRAL (115 V)

92170016

COMP

L1

L2 OR N

4

3

5

F2

2

- HEATER ELEMENT

- INSULATOR

- GROUNDED LEAD SYMBOL

- COMBINATION TERMINAL

- THERMISTER

T

HTR

CAP
COMPR

UI

OLP

HL

TF

- HEATER LIMIT FUSE

- USER INTERFACE

- OVERLOAD PROTECTOR

- FAN MOTOR   







- THERMAL FUSE

- COMPRESSOR

- CAPACITOR

MTR

L E G E N D

USER INTERFACE

SCHEMATIC

(230/208 V)

L2

OLP

OLP

COMPRESSOR

HERM

COM

CAP

FAN MTR

FAN

COM

CAP

PART NO.

REV.

01

- REVERSING VALVE

ELECTRIC HEAT

ELECTRIC HEAT

HL   

TF 

HTR  

7

EH2

EH1

1

RV

REVERSING CYCLE

RV

8

TO CAPACITOR
BRACKET

BLUE 

BLACK

c

F

A

N

   

RED

R -F-

-F-

S

-F-

C

TO CHASSIS

BLACK

ORANGE

WHITE

BROWN

BLUE

BLACK

WHITE

WHITE 

G

R

E

E

N

O

R

 Y

E

L

L

O

W

/G

R

E

E

N

H

E

R

M

 

FAN

MOTOR

B

L

U

E

BL
AC
K

HEATER  

RED

ORANGE

ELECTRONIC CONTROL

POWER SUPPLY
230/208/115VAC

LINE_N2

LINE_L5

J18

LINE_L3

COMP
RELAY

EH2
RELAY

EH1
RELAY

RV
RELAY

F4
RELAY

F1
RELAY

F3
RELAY

F2
RELAY

Содержание SM18M30series

Страница 1: ...ard Chassis Models RoomAir Conditioners Cool Electric Heat Heat Pump 115 Volt 208 230 Volt Cool Only SS08N10 SS10N10 SS12N10 SS14N10 SM15N10 SS12N30 SS15N30 SM18N30 SM21N30 SM24N30 SL22N30 SL24N30 SL2...

Страница 2: ...ol Board 34 Refrigeration Sequence of Operation 35 R410A Sealed System Repair Considerations 36 Sealed Refrigeration System Repairs 37 40 Hermetics Components Check 41 Reversing Valve Description Oper...

Страница 3: ...assistant if possible Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution Handle discharge and t...

Страница 4: ...rect contact with liquid refrigerant can result in minor to moderate injury Be extremely careful when using an oxy acetylene torch Direct contact with the torch s flame or hot surfaces can cause serio...

Страница 5: ...reful when using acetylene torch and protect surrounding property Failure to follow these instructions can result in fire and minor to serious property damage WATER DAMAGE HAZARDS Improper installatio...

Страница 6: ...osis and repair See Unit Identification code on page 6 INTRODUCTION COMPONENTS IDENTIFICATION Compressor Fresh Air Vent Evaporator Coil Electronic Control Board Control Key Pad Support Bar Blower Whee...

Страница 7: ...uffix Major modification Subject to change 7th Digit Options 0 Straight Cool Heat Pump Models 3 3 KW Heat Strip Nominal 4 4 KW Heat Strip Nominal 5 5 KW Heat Strip Nominal 6th Digit Voltage 1 115 Volt...

Страница 8: ...00 10 9 10 9 84 2 8 275 S 113 128 ES15N33 14500 14300 10700 8900 230 208 6 4 6 8 1480 1459 16 0 14 7 3500 2900 9 8 9 8 112 3 5 360 S 117 133 EM18N34 17500 17200 13000 10600 230 208 7 4 8 0 2590 2550 1...

Страница 9: ...1 8 Keep the filter clean Make sure that your air conditioner is always in top performing condition y l r a l u g e r r e t l i f e h t g n i n a e l c y b Provide good air flow Make sure the airflow...

Страница 10: ...nd size fuse circuit breaker Read electrical ratings on unit s rating plate Proper circuit protection is the responsibiity of the homeowner Grounding Unit MUST be grounded from branch circuit through...

Страница 11: ...50 6 20R SL36N30 EM18N34 EL36N35 YM18N34 YL24N35 EM24N34 30 250 6 30R Table 1 WARNING Electrical Shock Hazard Make sure your electrical receptacle has the same configuration as your air conditioner s...

Страница 12: ...fortable temperature overnight The Commercial 7 Day Business Week Schedule has two 2 time periods 07 00 and 18 00 This option will cause your air conditioner to raise temperatures to 84 F after typica...

Страница 13: ...POWER is a liquid crystal display LCD All of the control panel function buttons and mode icons can be viewed in Figure 3 Power On Press the button to turn on the air conditioner The power button illu...

Страница 14: ...button allows you to toggle between four speeds LOW MEDIUM HIGH MAX and AUTO speed operation Press once and let go each time FRR095 4 Speed AUTO FAN MODE The FAN MODE button allows you to select betwe...

Страница 15: ...at you select For example you can command the system to turn ON at 8 15 am and to turn OFF at 1 30 pm everyday To set the timer see page 18 SCHEDULE The SCHEDULE has two options with factory pre progr...

Страница 16: ...nds to save the setting Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display TIMER SCHEDULE The wait icon illuminates when the compresso...

Страница 17: ...for 3 sec then let go The display shows the TIMER is selected Press the button once and let go SCHEDULE FRR138 TIMER OR SCHEDULE OPTIONS 1 OR 2 SELECTION C Residential Schedule When selection 1 is se...

Страница 18: ...buttons for three seconds Refer to Figure 4 AM FRR128 FRR129 The unit s current hour displays Use the or buttons to adjust the hour To change from AM to PM continue to increment roll the display Press...

Страница 19: ...on OFF FRR146 Use the or button to adjust the minutes Press the TIMER SET button Figure 4 within 15 seconds to exit and save the setting The timer is now set to stop at 11 55 AM The display returns to...

Страница 20: ...168 If the Timer function is turned OFF during the ON time The Timer icon turns off The control stays in the current state FRR169 The display shows a normal system SET POINT F AUTO FAN The display sho...

Страница 21: ...he CONTINUOUS mode fan speed is determined by your selection on the FA N SPEED button FAN SPEED Button Used to sequentially select new fan speed plus AUTO operation When the FA N SPEED button is press...

Страница 22: ...SPEED SCHEDULE SYSTEM FAN MODE POWER DISPLAY FAN MODE POWER TEMPERATURE UP TEMPERATURE DOWN F AUTO FAN AUTO CONTINUOUS C SYSTEM MODE FAN MODE FAN SPEED SCHEDULE ICON HEAT ICON FAN ONLY ICON F C ICONs...

Страница 23: ...figure 1 and one for a heat cool unit see figure 2 System parameters for each system mode are saved when exiting a system mode and retrieved when entering a new system mode Timer Schedule Timer Sched...

Страница 24: ...gure below and the compressor is not locked out the cooling cycle begins As shown in the figure below the fan is started 5 seconds prior to the compressor Once the ambient temperature has been lowered...

Страница 25: ...low illustrates the basic heat pump operation YS10M10 Heat Pump Defrost Cycle Operation The defrost in this unit is an active reverse cycle The defrost control runs in the background and determines wh...

Страница 26: ...he electric heater first until the initial set point is satisfied Hot Start Feature After the initial start the unit will switch to Heat Pump heat and decide between Heat Pump heat and Electric heat b...

Страница 27: ...Heat Units When in the Heat mode with and without Fan Mode Auto Fan cycling If the indoor ambient temperature is below the Heat Demand Threshold Heat Set Point minus 1 5 F turn on electric heat If Am...

Страница 28: ...during Test Mode Heating Fan Delay This is only for fan Mode Auto Fan cycles with cool heat operation and not for continuous fan mode When unit cycles Heating ON starts the fan 5 seconds EARLY When u...

Страница 29: ...et point vs ambient temperature When there is no demand operate at the lowest available speed Fan AUTO Turns On or Off with heat or cool demand Turns On or Off with heat or cool demand Turns On or Off...

Страница 30: ...ve front cover See figure at left Remove the chassis Entrygard Retainer Wire by removing the screw at the front right bottom corner See Figure below Save this screw for reattachment after reinstalling...

Страница 31: ...screws indicated below Pull control board and mount plate out and disconnect the following connectors from it Power capacitor thermistors fan reversing valve and heater Remove the hex screw holding th...

Страница 32: ...sh outside air when using FAN ONLY It can also be used in the summer with the compressor in the Cooling Mode if you wish Fresh air and exhaust control Your air conditioner has the ability to bring fre...

Страница 33: ...Therefore the possibility of capacitor failure is much greater when the identified terminal is connected to the S or start terminal The identified terminal should always be connected to the supply lin...

Страница 34: ...approximately 30 degrees Fahrenheit and sensed for two consecutive minutes to stop the compressor and turn on the heating element Heating Element Sample TESTING THE HEATING ELEMENT Testing of the ele...

Страница 35: ...male connector see picture below There should be 5VDC 4 If there is no voltage replace the electronic control board 6 If the connections and the wire harness are good replace the User Interface User I...

Страница 36: ...ed changed to a Liquid before leaving the condenser coil The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant drie...

Страница 37: ...R 410A equipment To prevent moisture absorption and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour Weigh in the refrigerant charge into the hi...

Страница 38: ...erload failure SealedRefrigerationSystemcontainsrefrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refriger...

Страница 39: ...RD FREEZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch Failure to follow these procedures could result in moderate or serious...

Страница 40: ...he evaporator will not be encountered because the refrigerant will boil later if at all Gauges connected to system will usually have higher head pressure depending upon amount of over charge Suction p...

Страница 41: ...ith a partial restriction there may be gurgling sounds at the metering device entrance to the evaporator The evaporator in a partial restriction could be partially frosted or have an ice ball close to...

Страница 42: ...opposite port liquid line to the indoor coil Refer to refrigerant flow chart This directs the refrigerant through the filter drier and cooling capillary tube to the indoor coil In the heating mode of...

Страница 43: ...pressure suction side of the system The other two are connected to the indoor and outdoor coils Small capillary tubes connect each end of the main valve cylinder to the A and B portsofthepilotvalve A...

Страница 44: ...ish or stuck in the mid position part of the discharge gas from the compressor is directed back to the suction side resulting in excessively high suction pressure ELECTRIC SHOCK HAZARD WARNING Unplug...

Страница 45: ...all excess braze from all tubing so that they will slip into fittings on new valve 5 Remove solenoid coil from new valve The use of a torch requires extreme care and proper judgment Follow all safety...

Страница 46: ...ed in the motor windings to sense the winding temperature and or current draw The overload is connected in series with the common motor terminal Should the internal temperature and or current draw bec...

Страница 47: ...ing for sometime a careful examination must be made to determine why the compressor failed Many compressor failures are caused by the following conditions 1 Improper air ow over the evaporator 2 Overc...

Страница 48: ...ystem will need to be cleaned up following proper procedures 7 Install the replacement compressor 8 Pressurize with a combination of R 410A and nitrogen and leak test all connections with an electroni...

Страница 49: ...and oil from the system Remove compressor capillary tube and lter drier from the system Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent Use approved ushing agent...

Страница 50: ...weekly and cleaned if needed by vacuuming with a dust attachment or by cleaning in the sink using warm water and a mild dishwashing detergent Dry the filter thoroughly before reinstalling Use caution...

Страница 51: ...gasoline benzene etc Use a damp not wet cloth when cleaning the control area to prevent water from entering the unit and possibly damaging the electronic control CLEARANCES Inspect the surrounding ar...

Страница 52: ...T FRAME WITH STANDARD MESH FILTER A Figure 1 Figure 3 Figure 4 Figure 2 STEP 1 3 Do not force the filter into the unit Remove the filter by grabbing it from its handle lifting it up and swinging it ou...

Страница 53: ...ils a dirty filter cool damp weather or all of these Set the SYSTEM mode to FAN ONLY and the frost will disappear Setting the thermostat a little warmer will probably prevent the frosting from recurri...

Страница 54: ...ferrals to dealers and distributors u Use and Care Information u Recommended maintenance procedures u Installation information u Referrals to Authorized Service Providers and Parts depots Available Ac...

Страница 55: ...to scroll through any system errors Only active errors will be shown The display error mode will time out in 15 seconds with no key activity Press the key to view the next error Press the SELECT key...

Страница 56: ...during operation Logged Only 11 12 Discharge Air greater than 185 F Shutdown heat pump and electric heater Run high fan speed until temp is 100 F Resume operation Third occurance in 1 hour locks unit...

Страница 57: ...5 seconds and the display will then revert to the normal display The test mode will time out after 1 hour To cancel test mode unplug and replug the power cord Normal display This function is used to t...

Страница 58: ...2 53 2 53 66 13 004 13 335 13 666 2 48 2 48 67 12 668 12 984 13 301 2 44 2 44 68 12 341 12 644 12 947 2 39 2 39 69 12 024 12 313 12 603 2 35 2 35 70 11 716 11 993 12 269 2 31 2 31 71 11 418 11 682 11...

Страница 59: ...GE VOLTS AMPERAGE DRAW AMPS COOL AMPERAGE DRAW AMPS HEAT C OMPR E S S OR LOCKED ROTOR AMPS AMPS RUNNING AMPERAGE DRAW AMPS INDOOR TE MPE R ATUR E S INDOOR AMBIENT TEMPERATURE F RELATIVE HUMIDITY RH IN...

Страница 60: ...CDI power cord can trip Reset button pops out due to disturbances on your power supply line Press and release RESET listen for click Reset button latches and remains in to resume normal operation Elec...

Страница 61: ...rs are sized to meet the cooling load and heater size is then selected to meet the heating load In extreme northern climates room air conditioners may not be able to be used as a primary source of hea...

Страница 62: ...oes not run Inoperative system button Test button replace user interface if inoperative Broken loose or incorrect wiring Refer to applicable wiring diagram Open capacitor Test capacitor replace if ino...

Страница 63: ...tor replace if inoperative Partially restricted capillary tube De ice coil Replace capillary tube e s u a C e l b i s s o P m e l b o r P Compressor runs continually does not cycle off Excessive heat...

Страница 64: ...Incorrect wiring Refer to appropriate wiring diagram Defective thermistor Replace thermistor or electronic control board e s u a C e l b i s s o P m e l b o r P Noisy operation Poorly installed Refer...

Страница 65: ...rrier in building structure particularly oors Advise customer e s u a C e l b i s s o P m e l b o r P Unit short cycles Defective thermistor Replace thermistor or electronic control board Unit oversiz...

Страница 66: ...rmistor refrigerant circuits etc For proper operation correct as needed Temperature below 32 F 0 C e s u a C e l b i s s o P m e l b o r P Does not heat adequately Exhaust or fresh air door open Check...

Страница 67: ...ture rise across coil Refer to speci cation sheet for correct temperature rise Reversing valve failing to shift completely bypassing hot gas Denergize solenoid coil raise head pressure energize soleno...

Страница 68: ...ensables air in System Overcharged Low Air ow Across Indoor Coil Outdoor Ambient Too High For Operation In Heating Moisture in System Defective Compressor Defective Compressor Undercharged Overcharged...

Страница 69: ...ersal Hot Warm Warm Hot TVB Hot Not enough pressure differential at start of stroke or not enough ow to maintain pressure differential Check unit for correct operating pressures and charge Raise head...

Страница 70: ...age Configuration See next page for details Transformer Indoor Coil Thermistor Green Outdoor Coil Thermistor Blue Indoor Ambient Air Thermistor Check here for 3 3 Volts DC Fuse 6 3 Amps 250VAC L1 User...

Страница 71: ...ially unsafe operating condition FRIEDRICH ELECTRONIC CONTROL KIT PART FRIEDRICH MODEL PREFIX M S S S 0 1 0 1 0 6 2 6 L S 1 1 0 1 0 6 2 6 w o l e b e e s 0 1 S Y e d u l c n i t o n s e o d L Y M Y S...

Страница 72: ...RMISTER T HTR CAP COMPR UI OLP HL TF HEATER LIMIT FUSE USER INTERFACE OVERLOAD PROTECTOR FAN MOTOR THERMAL FUSE COMPRESSOR CAPACITOR MTR L E G E N D USER INTERFACE SCHEMATIC 230 208 V L2 OLP OLP COMPR...

Страница 73: ...MTR FAN COM CAP PART NO REV 01 THERMISTER REVERSING VALVE COMBINATION TERMINAL HEATER ELEMENT INSULATOR GROUNDED LEAD SYMBOL T HTR FAN MOTOR COMPRESSOR CAPACITOR COMPR MTR CAP USER INTERFACE OVERLOAD...

Страница 74: ...01 SSR THERMISTER REVERSING VALVE COMBINATION TERMINAL HEATER ELEMENT INSULATOR GROUNDED LEAD SYMBOL T HTR FAN MOTOR COMPRESSOR CAPACITOR COMPR MTR CAP USER INTERFACE OVERLOAD PROTECTOR THERMAL FUSE H...

Страница 75: ...N TERMINAL HEATER ELEMENT INSULATOR GROUNDED LEAD SYMBOL T HTR FAN MOTOR COMPRESSOR CAPACITOR COMPR MTR CAP USER INTERFACE OVERLOAD PROTECTOR THERMAL FUSE HEATER LIMIT FUSE HL UI TF OLP 2 1 4 3 PTCR T...

Страница 76: ...MBINATION TERMINAL THERMISTER GROUNDED LEAD SYMBOL HTR HEATER ELEMENT REVERSING VALVE INSULATOR HL HEATER LIMIT FUSE CAPACITOR CAP UI TF THERMAL FUSE OVERLOAD PROTECTOR FAN MOTOR COMPRESSOR MTR COMPR...

Страница 77: ...NDED LEAD SYMBOL HTR HEATER ELEMENT REVERSING VALVE INSULATOR HL HEATER LIMIT FUSE CAPACITOR CAP UI TF THERMAL FUSE OVERLOAD PROTECTOR FAN MOTOR COMPRESSOR MTR COMPR OLP USER INTERFACE 2 4 3 1 SSR TO...

Страница 78: ...ECTOR FAN MOTOR THERMAL FUSE COMPRESSOR CAPACITOR MTR L E G E N D USER INTERFACE SCHEMATIC 230 208 V L2 OLP OLP COMPRESSOR HERM COM CAP FAN MTR FAN COM CAP PART NO REV 01 RV REVERSE CYCLE 6 HP REVERSI...

Страница 79: ...PACITOR MTR L E G E N D USER INTERFACE SCHEMATIC 230 208 V L2 OLP OLP COMPRESSOR HERM COM CAP FAN MTR FAN COM CAP PART NO REV 01 REVERSING VALVE ELECTRIC HEAT ELECTRIC HEAT HL TF HTR 7 EH2 EH1 1 RV RE...

Страница 80: ...TERFACE SCHEMATIC 230 208 V L2 OLP OLP COMPRESSOR HERM COM CAP FAN MTR FAN COM CAP PART NO REV 01 REVERSING VALVE ELECTRIC HEAT ELECTRIC HEAT HL TF HTR 7 EH2 EH1 1 RV REVERSING CYCLE RV 8 1 3 SSR 4 2...

Страница 81: ...nt the Remote Control at the Air Conditioning Unit and press the Remote Control POWER key once to illuminate the Air Conditioning Unit s display Step 2 Once the display on the Air Conditioning Unit is...

Страница 82: ...ee examples below Air Conditioning Unit Display Remote Control Display Step 5 To save setting in Remote Control press and hold the Remote Control SCHEDULE and FAN SPEED Key simultaneously for approxim...

Страница 83: ...eptacle Contents User Interface UI Ribbon Cable 2 Mounting screws for UI Instruction Sheet Step 1 Disconnect ribbon cable by pulling straight out Step 2 Remove 2 mounting screws securing UI and discon...

Страница 84: ...83 PARTS SECTION K hl K hl Standard Chassis Unit Exploded Diagram...

Страница 85: ...84 PARTS SECTION K hl K hl Standard Chassis Unit Exploded Diagram...

Страница 86: ...1 5 62601016 USER INTERFACE SERVICE KIT 1 1 1 1 1 1 1 1 1 1 6 62601013 ELECTRONIC CONTROL SERVICE KIT CL EH 3SP GEN2 1 1 6 62601010 ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2 1 1 1 1 1 1 6 62601012...

Страница 87: ...60846017 ASSY PLSTC BAG W O WIK 1 1 1 1 60073300 GASKET URETHANE FOAM 1 1 1 1 1 1 61819601 SHELL GUIDE S M L 2 2 2 2 2 2 2 2 2 2 61826400 CHASSIS RETAINER WIRE 1 1 1 1 1 1 1 1 1 1 62601019 THERMISTOR...

Страница 88: ...NG VALVE KIT SOLENOID KIT 1 5 62601016 USER INTERFACE SERVICE KIT 1 1 1 1 1 1 1 6 62601013 ELECTRONIC CONTROL SERVICE KIT CL EH 3SP GEN2 1 1 6 62601010 ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2 1 1...

Страница 89: ...TER WEIGHT 1 1 1 60846016 ASSY PLSTC BAG W WIK 1 1 1 1 60846017 ASSY PLSTC BAG W O WIK 1 1 1 60073300 GASKET URETHANE FOAM 1 1 1 1 61819601 SHELL GUIDE S M L 2 2 2 2 2 2 2 61826400 CHASSIS RETAINER WI...

Страница 90: ...ONTROL SERVICE KIT COOL 3SP GEN2 1 1 1 1 6 62601012 ELECTRONIC CONTROL SERVICE KIT HP EH 3SP GEN2 1 7 61080589 CAPACITOR 1 1 7 61080588 CAPACITOR 1 7 61080520 CAPACITOR 1 1 7 61080514 CAPACITOR 1 1 61...

Страница 91: ...1 1 1 1 1 14 60610620 BLOWER WHEEL 1 15 61818100 SCROLL LRG 1 1 1 1 1 1 1 16 60542007 FAN BLADE 1 1 1 1 1 1 1 17 61807702 SHROUD LRG 1 1 1 1 1 1 1 18 61806700 MOUNT FAN MOTOR 1 1 1 1 1 1 1 19 61907111...

Страница 92: ...Heat 62 Set Point Heat 62 Set Point Heat 62 Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 System Mode Cool System Mode Cool System Mode Cool...

Страница 93: ...results from improper installation wiring electrical current characteristics or maintenance or caused by accident misuse or abuse fire flood alterations and or misapplication of the product and or uni...

Страница 94: ...y Woodside New York 11377 718 545 5464 800 431 1143 International Parts Depot Traco Corp 380 Paterson Road Carlstadt NJ 07072 201 939 1600 Reeve Air Conditioning Inc 2501 South Park Road Hallandale Fl...

Страница 95: ...Kuhl Serv PartsMan 9 12 FRIEDRICH AIR CONDITIONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 P 210 546 0500 l F 210 546 0731 www friedrich com Printed in the U S A...

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