Carrier 38AN,BK Heat Pump User Manual
Contents
1. Slope condensate line at a minimum pitch of Y in per foot of line The condensate line cannot be run up for upper piping connections only refriger ant lines may be run up b Push the wall sleeve factory supplied with the unit through the 214 in wall opening Table 3 High Wall Unit Package Contents ITEM Unit Mounting Template Unit Mounting Bracket 1 in Lag Screws for Unit Mounting Hollow Wall Anchor Bolts for Unit Mounting Wall Sleeve with Wall Cap Infrared Wireless Remote Control QUANTITY AAA Batteries for Remote Control Remote Control Mounting Bracket in Lag Screws for Remote Mounting Bracket 35 ft High Voltage Power Wiring 40QNB009 3 Wire with Ground 40QNE009 2 Wire with Ground 40QNB012 2 Wire with Ground 40QNH012 2 Wire with Ground 35 ft High Voltage Control Power Wiring 3 Wire 35 ft Low Voltage Thermistor Wiring Owner s Manual Installation Instructions Warranty Registration Card N a n o a a a ma f ma f a f Mi f Ma G a f Md Table 4A Physical Data 38AN Cooling Only Condensing Units UNIT 38AN NOMINAL CAPACITY Tons OPERATING WEIGHT lb REFRIGERANT TYPE Control Cooling Factory Charge ib COMPRESSOR TYPE Model Oil Recharge oz Crankcase Heater Accumulator OUTDOOR FAN pm Diameter in No of Blades Motor Watts Nominal Air Cfm OUTDOOR COIL Face Area sq ft No of Rows Fins in CONTROLS Fuslble Plug F Control Voltage REFRIGERANT2. TField supplied NOTES 1 All piping must follow standard refrigerant techniques Refer to Carrier System Design Manual for details Do not install a filter drier in mixed phase liquid line All wiring must comply with applicable local and national codes Capillary tube expansion device cooling only systems only is lo cated in the outdoor unit Both refrigerant lines must be insulated Wiring and piping shown are general points of connection guides only and are not intended to include all details for a specific installation Insulate condensate line drain if installed in a conditioned space Fig 21 Typical High Wall System Piping and Wiring a am PUN 22 AGING A PETIT EGT Pret rde LEGEND AND NOTES FOR FIG 22 25 For Burn in Test short these terminais Assembly Contactor Capacitor Crankcase Heater Compressor Connector Electromagnetic interference Fan Motor Capacitor Fuse Ground Home Automation Hall Rpm Sensor Indoor Coil Temperature Thermistor Indoor Fan Motor Japan Electric Manufacturing Industry Association Relay Outdoor Air Thermistor Outdoor Coil Thenmistor Outdoor Fan Motor Overload Printed Circuit Board Start Thermistor NOTES 1 2 lt wo Pi lTTtdl Retum Air Temperature Thermistor Resistor Capacitor Receiver Reversing Valve Solenoid Stepping Motor Terminal Block Thermal Protector Transformer Terminal Marked Terminal Unmarked Splice Te
3. 4 TORQUE ft lb 10 12 Step 7 Connect Condensate Drain Line Observe all local sanitary codes when installing condensate drains 1 Connect drain lines by inserting a S in ridged PVC pipe over the drain connection fitting provided A CAUTION The drain tube extension must be securely fastened to the condensate drain Failure to do so can result in condensate water dripping onto the floor 2 To ensure regular flow of condensate water the drain pipe should be pitched toward an open drain or sump at a down ward slope of at least 4 in per ft Refer to Fig 10 11 IMPORTANT Be sure the drain hose has no slack which might form a trap Do not insert a trap in the drain line the drain is internally trapped 3 Insulate the condensate drain line where it is located in or above an occupied area with a condensate proof mate rial such as polyurethane or neoprene Step 8 Make Electrical Connections Be sure all field wiring complies with local building codes and NEC and that the unit voltage is within the limits shown in Table 7 For units with electric heat option see Table 8 Contact local power company for correction of improper line voltage Check the unit rating plate for recommended circuit protection device A WARNING To avoid personal injury or damage to unit do not make electrical connections until all power sources are shut down locked out and tagged off Failure to do so cou
4. LINES Connection Type Liquid Line OD in Vapor Line OD in Maximum Length ft Maximum Lift Fan Coil Above Outdoor ft Maximum Lift Fan Coil Below Outdoor ft These units may only be used with 40QNB009 012 fan coil units 012 Ya 1 62 a i N 22 Capillary Tube 1 5 1 8 Carrier Hermetic Rotary EAA0901114 EBB120111A 10 1 10 1 None Yes Propeller Direct Drive 850 12 4 4 12 4 87 87 750 750 Copper Tube Aluminum Fin oe 210 210 115 230 un o Male Flare VA VA Ya 35 35 30 30 Table 4B Physical Data 40QNB Cooling Only High Wall Units UNIT 40QNB NOMINAL CAPACITY Tons NOMINAL SIZE Btuh OPERATING WEIGHT Ib MOISTURE REMOVAL RATE Pints Hr FINISH REFRIGERANT Control Cooling Factory or System Charge Ib t INDOOR FAN Rpm Cfm High Rpm Cfm Medium Rpm Cfm Low Motor Watts Blowers No Size in INDOOR COIL Face Area sq ft No of Rows Finsfin Circuits FILTERS Quantity Size in AIRSWEEP Horizontal Vertical CONTROLS Remote Controller Freeze Protection Auto Restart Diagnostics Timer Mode Test Mode Dehumidification Mode Fan Mode Control Voltage REFRIGERANT LINES Connection Type Liquid Line OD n Vapor Line OD n Maximum Leni ft Maximum Lift Fan Coil Above Outdoor ft Maximum Lift Fan Coll Below Outdoor i CONDENSATE DRAIN CONNECTION in Units may only be matched with 38AN outdoor units 012 3 4 1 9000
5. Len m 35 35 Maximum Lift Fan Coll Above ft 16 16 Maximum Lift Fan Col Below ft 30 30 These units may only be used with 40QNE H fan coil units Table 4D Physical Data 40QNE H Heat Pump High Wall Units UNIT 40QNH012 NOMINAL CAPACITY Tons 1 NOMINAL SIZE Btuh 12 000 OPERATING WEIGHT Ib 24 2 MOISTURE REMOVAL RATE Pints hr 3 4 REFRIGERANT Control Cooling Control Heating R 22 AccuRater Piston at Outdoor Unit AccuRater Piston at Outdoor Unit Factory Charge Ib t INDOOR FAN Direct Drive Centrifugal Rpm Cfm High 1200 240 1040 260 Rpm Cfm Medium 1100 210 940 240 Rpm Cfm Low 1000 180 850 210 Motor Watts 34 35 Blowers Quantity Size in 1 3 54 x 27 75 1 3 94 x 27 75 INDOOR COIL Copper Tube Aluminum Fin Face Area 1 45 1 6 No of Rows 2 2 Fins in 18 17 Circults 2 3 FILTERS Cleanable Quantity Size in 2 9 x 12 2 9 x 1334 AIRSWEEP Horizontal Manual Vertical Automatic CONTROLS Integrated Microprocessor Remote Controller Options Wireless Diagnostics Yes Defrost Method Demand Defrost Timer Mode Yes Warm Start Feature Yes Test Mode Yes Freeze Protection Yes Dehumidification Mode Yes Fan Mode High Medium Low Auto Auto Changeover Yes Auto Restart Yes Control Voltage 115 v 230 v REFRIGERANT LINES Connection Type Male Flare Liquid Line OD in LA 4 Vapor Line OD in v2 Ve Maximum Length e 35 35 Maximum Lift Fan Coil Below n 16 16 Maximum Lift Fan Coil
6. WIRES 208 230 1 50 0FH CAP e cu TO DISCONNECT i i cpt 5 4 vee RK FA ea 2 ow 7 OUTDOOR UNIT TO INDOOR UNIT HIGH VOLTAGE WIRING CE RCY USE CABLE SUPPLIED Lc dai DISPLAY PCB AS pce is 40QNHO12 FAN COILY Lemet OSIS MRB EEE CN12 TIMER HA AGING SHORT JENA car a pal i eTiTale n TeTaT4 Hib TEST ATA RA Th BL i L FETA CONTROL PCB ASS Y om Hr a tane copen y Tal ore SND HEATER RELAY FUSE LINK CIJ ERI 0_ D BRN Enea EBEN sn n BESS are ele wt ee pr CALUL cuaLel4lilsi1 emali igla CNI LLLI L EN on BIETA a BL m rn n o Bt Mi m m ZTN one RED MD a PE Teu Tez me Ei Fig 25 38BK012 with 40QNH012 Heat Pump System with Electric Heat Wiring Diagram 27 Copyright 1999 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1_ 4 PC 111 Catalog No 533 848 Printed in U S A Form 38A B 40Q 1SI Pg 30 5 99 Replaces 53AN BK 1SI Tab 3e 2f
7. and replacing filters All other operations should be performed by trained service personnel When working on air conditioning equipment observe pre cautions in the literature and on tags and labels attached to unit Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Before installation read these in structions thoroughly Consult local building codes and Na tional Electrical Code NEC for special installation requirements A WARNING Electrical shock can cause personal injury or death Be fore installing or servicing system be sure to turn off main power to system There may be more than one dis connect switch Turn off indoor fan coil power as applicable GENERAL The Carrier 40Q0NH012 heat pump high wall fan coil unit Fig 1 comes with supplemental electric heat 40QNE009 heat pump fan coil unit does not have electric heat If your application requires heating heat pump units must be used both outdoors and indoors See Table 1 for recommended system combinations The matched cooling and heat pump systems consist of an outdoor section condensing unit or heat pump and an in door section fan coil The outdoor section 38AN or 38BK is installed alongside the building structure It can also be installed on a flat roof deck or on an apartment building balcony The indoor section 40QNB009 012 or 40QNE009 40QNH012 is mounted
8. cover for control box access fon Fig 2 Minimum Required Fan Coil Unit Clearances Select walls that are a Strong enough to support the weight of the unit see Tables 4A 4D for unit operating weight b Accessible to convenient condensate drainage c Free of obstacles that may block air circulation to the fan coil d Outside walls if possible to make piping easier Place top of fan coil unit as high on wall as possible mak ing sure that unit is at least 314 in down from ceiling to permit proper airflow the recommended clearance is 10 inches Also make sure that the unit is not placed directly over anything that would prevent filter removal or block airflow Make sure units are easily accessible to electric power Refrigerant piping can enter the unit through the prepunched holes Refrigerant piping can run down along the wall to the right or left along the wall straight through the wall or into the wall recommended location right rear See Fig 5 Once the piping is through the wall it can run inside walls in ceilings between floors or straight to the outside See Fig 6 for maximum line lengths See Table 5 for System Piston Guide and Refrigerant Charging NOTE Run refrigerant piping as directly as possible and avoid any unnecessary turns or bends 8 Condensate piping can be directed through the inside wall to an approved drain or directed straight outside NOTE The piping hole for co
9. equipped with a microprocessor control which operates the system This control is located in the control box of the fan coil unit with thermistors located in the fan coil inlet and on the in door coil The 40QNE H heat pump fan coil units also have thermistors located on the outdoor coil and in the outdoor air inlet These thermistors monitor system operation and con trol the operating mode To change settings or modes of op eration use the factory supplied infrared wireless remote controller This controller allows the fan coil unit to be op erated from within the same room without any wire connec tions to the unit Wireless Remote Controllers A wireless remote controller is supplied for system operation of all high wall units Each battery operated wireless infrared remote controller may be used to control more than one unit The wireless remote controller has a maximum range of 20 feet The fan coil unit is equipped with an emergency switch which allows operation if the remote controller malfunc tions or is misplaced Because the controller uses infrared Fig 13 Mounting Remote Controller Bracket 14 communication all of the following must be true for the con troller to work properly 1 The power must be on to the fan coil unit 2 The batteries in the controller must be good 3 The controller must be within range of and pointed di rectly at the fan coil unit 4 The fan coil unit s 3 position switch mus
10. high on an interior wall that is con venient for piping connection to the outdoor section Two sizes are available 9 000 and 12 000 Btuh cooling capaci ties See Fig 1 for system components Table 1 for system Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 533 848 Book 1 4 PC 111 Tab 3e 2f Printed in U S A Form 38A B 40Q 1S Pg 1 5 99 Replaces 53AN BK 1SI combinations and Table 2 for application range Refer to this manual for proper installation of the complete system Refer to Table 1 to make sure the correct indoor unit is in stalled with the correct outdoor unit Be sure the unit will be operated within the application guidelines shown in Table 2 When installing the 38AN or 38BK unit it is important to note that for cooling operation when the outdoor air tem perature is below 55 F it is necessary to equip the outdoor unit with the low ambient accessory To install this unit you will need 1 40QNB or 40QNE H Fan Coil unit with standard wire less remote controller and indoor unit wire 1 38AN or 38BK Outdoor Unit 1 Low Ambient Kit if required for your application NOTE Field supplied wire drain pipe refrigerant tubing etc are also required to install unit The installation materials provided are for use on instal lations where the indoor section is mounted to gypsum wall board w
11. microprocessor If a fault is indicated then the system allows only limited operation un til the problem is resolved If the problem resolves itself then the code is cleared and operation resumes THERMISTOR TESTS Each thermistor is tested for high limit out of range shorted condition and low limit out of range open condition If the thermistor is out of range the fault status indicator comes on and the LED flashes the ap propriate fault code Proper thermistor location and correct temperature sensing are critical to unit operation Good ther mal contact is also required Thermistor cable assemblies are provided with fan coil units to run between indoor and out door units High voltage and thermistor cable assemblies should not touch each other and cable runs may be extended up to 200 feet With unit running the thermistor integrity may be checked by measuring the dc voltage across the two thermistor con nections Approximate temperature is indicated in Table 11 COMPRESSOR FAILURE If the System is in Cooling or Dehumidification Mode Af ter 5 minutes of operation if the temperature of the indoor coil is not 4 F less than at the time the call for cooling started then a compressor failure is indicated on the remote con troller LCD display 20 If the System is in Heat Pump Heating Mode 38BK only After 5 minutes of operation if the temperature indicated by the outdoor coil thermistor is not 4 F less tha
12. time delay of 3 minutes between compressor turning off and turning back on INDOOR COIL FREEZE PROTECTION Cooling or De humidification Mode Only If the indoor coil tempera ture is less than or equal to 32 F for 10 minutes after the compressor has started then the compressor and outdoor fan are turned off The indoor fan continues to run at the user selected speed until the indoor coil reaches 44 F At that time the compressor and outdoor fan will restart INDOOR COIL HIGH TEMPERATURE PROTECTION Heat Pump Systems Only If indoor coil temperature is greater than or equal to 135 F the outdoor fan shuts down The outdoor fan will restart automatically when the indoor coil temperature drops to 120 F TROUBLESHOOTING See Table 12 and Fig 21 25 to assist in troubleshooting Table 11 40QN Thermistor Properties oO THERMISTOR THERMISTOR rhe ERMISTOR VOLTS DC VOLTS DC VOLTS DC 40 4 84 30 21500 237 276 265444 ____ 4 72 4735 O 4 77 20 149721 _ 166689 185 146 tT 4 68 10 4 55 o 77 281 85 677 93867 4352 O 4 35 ___ 4 40 10___ 56 567 __ 62617 _ 68205 409 4 16 O 4 21 20 a261 32 so 386 ____ 3 98 30 32 043 34 580 37220 ss se 3 72 32 30 300 32 550 35 120 353 O seo 3 66 40 343 s seso 1990 ameo 29 3o gt n 60 2 79 70 nar mes mse 28 aa om go eso 9200 omo 2 2n 2 16 30 158 00 sar S520 eer as mo ae 467 a
13. 12 000 18 7 24 2 3 4 White R 22 E Capillary Tube in Outdoor Unit Direct Drive Centrifugal 1200 240 1040 260 1100 210 940 240 1000 180 850 210 34 35 1 3 54 x 27 75 1 3 94 x 27 75 Copper Tube Aluminum Fin 18 17 2 3 Cleanable 2 9 x 12 2 9 x 138 Manual Automatic integrated Microprocessor Wireless Yes Yes Yes 24 Hour Startup Shutdown Type es Yes High Medium Low Auto 115v 230 v Male Flare Ya VA Yo 35 35 16 16 30 30 OD Ae ID TFull factory charge shipped in outdoor unit Charge is determined based on 25 ft of line 4 Table 4C Physical Data 38BK009 012 Outdoor Heat Pump Units UNIT 388K ace taia a DURE ee ie ai 012 NOMINAL CAPACITY Tons 1 OPERATING WEIGHT Ib 66 5 REFRIGERANT TYPE R 22 Control Cooling AccuRater Piston at Outdoor Unit Control Heating AccuRater Piston at Outdoor Unit Factory Charge Ib 1 5 COMPRESSOR TYPE Carrier Hermetic Rotary Model EBA095111H EBC130111H Oil Recharge oz 10 1 10 1 CRANKCASE HEATER Watts 40 OUTDOOR FAN Propeller Direct Drive Rpm 850 850 Diameter in No of Blades 12 4 1214 4 Motor Watts 87 87 Nominal Air Cfm 756 756 OUTDOOR COIL Copper Tube Aluminum Fin Face Area sq ft No of Rows 5 1 3 5 2 Fins in 17 CONTROLS Fusible Plug 210 F Accumulator Yes Defrost Method Demand Control Voltage 230 v REFRIGERANT LINES Connection Type Male Fiare Liquid Line OD in V4 Ve Vapor Line OD in v Maximum
14. 2 F be low the selected temperature when only the fan is operating Fig 14 Remote Controller CLOSE CLOSE as ase 5 mor START COOL HEAT START COOLING DIRECT HEATING DIRECT LOUVERS SO AIR LOUVERS SO AIR BLOWS STRAIGHT BLOWS DOWN OUT HORIZONTAL SATI PAL DISCHARGE ISCHARGE SWING AAN Potential range tDesirable range NOTE Unit is equipped with manual air vents which direct the air from side to side Up and down louver motion can be selected using the remote controlier For maximum comfort set louvers within the swing range See Adjusting Airflow section on page 14 for more information Fig 15 Louver Adjustments Operating Fault Diagnosis The system includes an automatic diagnosis feature which is activated under dif ficult or unacceptable operating conditions If such condi tions occur the system stops automatically the operating fault signal appears green UNIT ON light on the front of the fan coil unit flashes and an analysis of the system operat ing conditions is initiated The system will then be restarted automatically as soon as normal conditions have been re stored or it will remain off If the system does not start again the green UNIT ON light will flash an error code Microprocessor Control Operation This sys tem is controlled by a microprocessor designed to give op timum levels of comfort and operating efficiency The con trol is located in the 40QN uni
15. 38AN BK with 40QN009 012 Cooling Only Heat Pump Systems Installation Start Up an Service Instructions For Use in High Wall Applications CONTENTS Page SAFETY CONSIDERATIONS 1 GENERAL 0026 ice enr er tiy pein a aaa a cos 1 2 INSTALLATION 0 0 000000 2 13 Step 1 Complete Pre Installation Checks 2 UNPACK UNIT e INSPECT SHIPMENT Step 2 Select Location 2 Step 3 Mount Mounting Bracket on Wall 3 Step 4 Mount Outdoor Section 9 Step 5 Connect Refrigerant Piping 10 RIGHT REAR AND BOTTOM PIPING CONNECTIONS RIGHT SIDE PIPING CONNECTIONS e LEFT SIDE PIPING CONNECTIONS ALL TYPES PIPING CONNECTIONS Step 6 Make Piping Connections 10 Step 7 Connect Condensate Drain Line 11 Step 8 Make Electrical Connections 11 INDOOR SECTION WIRING OUTDOOR SECTION WIRING Step 9 Install Fan Coil Unit Onto Mounting Bracket 0005 13 START UP nn tota presata oara oii into Dia d baia 14 17 40QN Control System 14 Wireless Remote Controllers 14 After Extended Shutdowns 14 Seasonal Changeovers 14 To Turn the Unit On and Off 14 Adjusting Airflow 2006 14 Operating Mode Memory 14 Automatic Operation Auto Mode 14 Operating Fault D
16. A CAUTION To avoid the possibility of electric shock before per forming any cleaning and maintenance operations al ways tum off power to the system by pressing the orange ON OFF button on the remote controller Turn off the outdoor disconnect switch located near the out door unit If the indoor unit is on a separate switch be sure it is also disconnected For proper system operation perform the cleaning and main tenance operations in Table 9 Lubrication The indoor fan automatic air sweep mo tor and the outdoor fan motor are factory lubricated and re quire no oiling To Install Batteries or Replace Remote Controller A CAUTION Do not drop the remote controller damage to the de vice may result Avoid getting the controller wet NOTE Before replacing the batteries note that the remote controller signal can be affected if electronic fluorescent lights are installed nearby The batteries may not need to be replaced If you suspect this is the problem consult your Carrier distributor Batteries should be replaced once a year Use 2 batteries 1 5 v de type AAA alkaline batteries Never use old or recharged batteries together with new ones To replace batteries 1 Slide the battery cover off from the back of the remote controller See Fig 18 2 Insert the 2 batteries in accordance with the markings on the remote controller so that the poles are correct and 3 Press the button using
17. Below ft 30 30 CONDENSATE DRAIN SIZE in OD Ae ID These units may only be matched with 38BK outdoor units The 40QNH unit available in size 012 only Full factory charge is shipped in the outdoor unit The charge is determined based on 25 ft of line 3 3 8 0 7 1 2 390 1823 0 10 5 8 2713 O 1 5 6 42 HIGH VOLTAGE TO 0 1 3 16 INDOOR SECTION 10 178 Dia MHI ULUI LUMINILE RU LRT RTT TTT Sane Ue Bes TUT IRU IUL eee II HIGH VOLTAGE TO FRONT VIEW RE NOTES 1 Dimensions in are in millimeters 2 Direction of airflow 3 QB Center of Gravity 4 Minimum clearances 4 in on coil sides 24 in on fan side and 30 in service side Fig 3 38AN BK Dimensional Drawing MINIMUM CLEARANCE FOR SERVICE 0 20 0 40 S 10 3 5 89 MIN WALL SLEEVE a tit te DRAIN SUCTION LINE 0 S00 12 71 HALE FLARE CONNECTION POWER AND SIGNAL LINES LIQUID LINE 0 250 5 35 HALE FLARE CONNECTION MOTE DRAIN 0 625 15 68 MALE SARB CONNECTION SSS SSS y INLET AIR IR FILTERS CERT SIDE VEY COPEN COVER FOR ACCESS B AUTO AIRSWEEP LOUVER EVAPORATOR E coil ee HEATING L INFRARED REMOTE OVERRIDE SWITCH BEHIND ACCESS COVER KNOCKOUT FOR RIGHT SIDE REFRIGERANT DRAIN POWER AND SIGNAL LINE KNOCKOUT FOR LEFT SIDE REFRIGERANT ORAIN POWER AND SIGNAL LINES INDOOR FAN MOTOR BOTTOM VIER KNOCKOUT FO
18. E fessa HOOK LOCATIONS Fig 12 Mounting Fan Coil Unit to Bracket START UP Complete the following checks and the Start Up Check list on pages CL 1 and CL 2 before system start up 1 Check condensate drainage system Refer to Fig 4 and 10 Add water to check the drainage flow If water does not flow steadily check the pipe slope or see if there are any restrictions 2 Make sure all wiring connections are correct and tight 3 Be sure all barriers covers and panels are in place 4 Ensure that the filters have been installed and that the air discharge louvers are correctly positioned A WARNING Never operate unit without a filter Damage to the unit could result 5 Fully backseat open the liquid and vapor tube service valves 6 Unit is shipped with valve stems frontseated and caps fac tory installed Replace stem caps after system is opened to refrigerant flow backseated Replace caps finger tight 7 With the remote controller turn on the unit and operate in each mode as applicable for 15 minutes to test for proper operation Do not operate in Cooling mode if out door temperature is below 55 F unless unit is equipped with low ambient control Do not operate in Heating mode heat pump systems only if the outdoor temperature is above 75 F 8 Test for proper refrigerant charge using the superheat method 9 Explain basic system operation to the owner 40QN Control System The 40QN unit is
19. PIPING FOR RIGHT SIDE PIPING FOR BOTTOM REAR PIPING Fig 5 Fan Coil Unit Refrigerant Piping FAN COIL UNIT BOTTOM BACK VIEW 35 MAX FOR COOLING ONLY AND HEAT PUMP SYSTEMS 30 INDOOR ELEVATION UNIT fs 16 MAX ELEVATION OUTDOOR UNIT GROUND LEVEL ROOFTOP INSTALLATION INSTALLATION Fig 6 Maximum System Line Lengths Step 4 Mount Outdoor Section 1 If outdoor section is to be installed at ground level mount on a solid level support pad one in longer and one in wider than the outdoor section dimensions 2 Provide sufficient clearance for airflow wiring refriger ant piping service and maintenance Provide a minimum clearance of 2 ft from obstructions in front of outdoor section 2 ft on outdoor coil side and 21 2 ft on electrical and piping side If more than one outdoor section is in stalled provide a minimum clearance of 2 ft between sec tions Position outdoor section so that water or ice from roof cannot fall directly on unit NOTE The outdoor section can be installed higher than lower than or level with the elevation of the indoor section If outdoor section is mounted higher than the in door section the vertical distance between the 2 units should not exceed 30 ft If the outdoor section is installed lower than indoor section the vertical distance between the units should not exceed 16 ft See table below MAXIMUM DISTANCE BETWEEN OUTDOOR UNITS Outdoor S
20. R BOTTOM INDOOR AIR BLOWER WHEEL REFRIGERANT DRAIN POWER AND SIGNAL LINE 012 UNIT OUTLINE N 012 MOUNTING BRACKET L 164 DIA NOTE 3 NOTES Dimensions are in inches Dimensions in are in millimeters WEIGHT A B PL L A BR ee IEI EL 187 s 5 33 46 850 71 02 280 6 29 160 242 11 0 36 61 930 11 81 300 7 28 185 1 2 Direction of airflow 40QN 3 al nla drain and power connections may be made rear left side or 003 4 Refrigerant is metered by capiltary tubes in the outdoor unit Insulate both 012 5 6 refrigerant lines Clearances of 314 on top of and to the left of the fan coil unit are absolute minimums Clearances of 10 are recommended Do not insert a trap in condensate drain line Drain is internally trapped Fig 4 40QN Dimensional Drawing 8 Table 5 System Piston Guide and Refrigerant Charges REQUIRED SYSTEM CHARGE Ib 1 50 INDOOR OUTDOOR PISTON PISTON SIZE SIZE Z0QNEGOS 40GNHO 2 Charge is based on 25 ft of interconnecting tubing Charge may need to be added for longer tubing runs or when used with certain fan coils Check unit nameplate for required charge This is a total sys tem charge tNon serviceable Aeroquip piston Indoor 40QNB009 40QNB012 POSSIBLE PIPING DIRECTIONS LEFT SIDE KNOCKOUT BOTTOM KNOCKOUT PREPUNCHED HOLES FOR LEFT SIDE
21. See Fig 11 systems from the indoor section through the upper elec Heat Pump Size 012 Units trical conduit connection of the outdoor unit Connect the black lead to terminal block location L1 5 Route a field supplied 3 wire 14 gage power conductor Connect the red lead to terminal block location L2 Con through the lower electrical conduit connection of the nect the bare copper ground lead to terminal block 12 outdoor unit For installation simplicity the field supplied conductor should be black white and bare cop per for 009 applications and black red and bare copper for 012 applications 6 Wire the outdoor units as follows Cooling Only Size 009 Systems Connect the 2 black leads to terminal block location L Connect the 2 white leads to terminal block location N Connect the 2 bare copper ground leads to the terminal block location G Connect the red lead to terminal block location 3 See Fig 11 Cooling Only Size 012 Systems Connect the 2 black leads to terminal block location L1 Connect the 2 red leads to terminal block location L2 Connect the 2 bare copper ground leads to terminal block location G Connect the yellow lead to terminal block location 3 See Fig 11 Heat Pump Size 009 Systems Connect the 2 black leads to terminal block location L Connect the 2 white leads to terminal block location N Connect the 2 bare copper ground leads to terminal block location G Connect the yellow lead to te
22. an instrument screwdriver or similar small pointed tool 4 Replace the cover securely It is time to replace the remote controller batteries when the remote controller function becomes irregular or the sys tem no longer responds to commands given close to the unit When shutting down the system for an extended period of time it is advisable to remove the batteries Consult distributor if any other equipment is turned on or shows signs of disrupted operation if you use the wireless remote controller or if the system is turned on or shows signs of disrupted operation when the remote controller of any other equipment is used To Set the Current Time 1 Press the button located on the back of the remote controller see Fig 19 with an instrument screwdriver or similar small pointed tool and the current time indica tion symbol flashes Note that the controller comes preset from the factory set for 6 00 a m 2 Set the current time with the hour and minute buttons on the front of the remote controller see Fig 19 while the current time indication is flashing Note that a m and p m are also indicated as the times are scrolled through 3 Press again The flashing will stop and the current time will be reset to the new setting To Remove and Clean or Replace Air Filters A CAUTION Operating your system with dirty air filters may damage the indoor unit and can also cause reduced cooling per formance intermittent s
23. ction Run liquid and suction refrigerant piping 1 Run pipes as directly as possible avoiding any unnec essary turns and bends 2 Suspend refrigerant pipes so that the insulation is not dam aged and vibrations are not transmitted to the structure 3 Leave slack in refrigerant pipe between the structure and the indoor and outdoor sections to absorb vibration Step 6 Make Piping Connections NOTE The outdoor section must be connected to the indoor section using field supplied tubing To make connections 1 Unpack factory supplied tubing package Unwind tubing carefully Do not bend or kink tubing 2 Connect piping to the indoor section a Shape tube with a tube bender so that the tube ends coincide with flare connections b Carefully remove the flare nut fitting from the indoor section tubing c Thoroughly clean all tubing connection points to pre vent foreign matter from entering the refrigerant circuit d Thread the 2 fittings by hand making sure the threads fit smoothly and the flare seats evenly against the union e Tighten the 2 fittings securely If a torque wrench is used hold the union side with a wrench and tighten the nut to the specified torque with torque wrench See Table 6 for proper tightening torque Table 6 Flare Nut Tightening Torque DIAMETER in 4 3 Connect piping to the outdoor section a Carefully remove the flare nut from the service valves b If necessary shape
24. de the wall LEFT SIDE PIPING CONNECTIONS 1 Place indoor unit on wall bracket 2 Mark where the tube flare connection points end on the wall 3 Remove the indoor section from the wall bracket 4 Route the interconnecting tubing and the drain tube ex tension through the wall sleeve 5 Using a hand tube bender carefully bend the tubes until they coincide with the position of the flare connection points on the wall 6 Secure indoor section to the wall bracket 7 Connect the drain tube extension to the condensate drain tube 8 Carefully position the indoor section onto the wal bracket Be sure the tubing and the drain tube are routed through the piping hole in the wall 9 Check that the indoor section is mounted level to ensure proper condensate drainage and to avoid possible water damage Be sure the drain tube is sloped toward the out side and is not kinked or bent Ensure that any drain ex tension is made outside the wall ALL TYPES PIPING CONNECTIONS NOTE After tubing is routed through wall sleeve install the factory supplied wall cap around tubing components and into the 2 4 in hole Do not fill air gaps yet with insulation or caulking as this space is helpful when connecting tubing to outdoor unit and routing electrical power supply Be sure to fill air spaces after installation is complete IMPORTANT All refrigerant lines must be insulated because the refrigerant flow device is located in the outdoor se
25. ection Higher 30 Ft Maximum Than Indoor Section Vertical Outdoor Section Lower 16 Ft Maximum Than Indoor Section Vertical NOTE Maximum system piping length between indoor and outdoor units is 35 ft Fig 7 Fan Coil Unit Bracket Mounting Size 009 Shown NOTE Use either point A or point B Fig 8 Wall Hole Location For Fan Coil Unit Rear Piping Size 009 Shown 3 16 3 8 LOWER WALL SLEEVE FACTORY SUPPLIED INDOOR SIDE OUTDOOR SIDE NOTE Slope condensate line at a minimum pitch of in per foot Fig 9 Piping Hole Step 5 Connect Refrigerant Piping Refer to Tables 4A 4D for correct piping sizes The length of re frigerant pipe depends on the unit placement and building structure run pipes as directly as possible Piping lengths must not exceed 35 ft of total run A CAUTION DO NOT BURY MORE THAN 36 IN OF REFRIG ERANT PIPE IN THE GROUND If any section of pipe is buried there must be a 6 in vertical rise to the valve connections on the outdoor unit If more than the rec ommended length is buried refrigerant may migrate to cooler buried section during extended periods of unit shutdown causing refrigerant slugging and possible com pressor damage at start up If it has not yet been removed remove indoor section front panel by removing the Phillips head screws located at the bottom of the air outlet It may be necessary to rotate the louvers to locate
26. erature the system operates as follows The compressor and outdoor fan operate for 3 minutes The indoor fan will operate at ultra low speed and will stop 30 seconds after the compressor stops Af ter 4 or 5 minutes the indoor fan starts in ultra low speed for 30 seconds The normal dehumidification operation is repeated for the newly sensed room temperature If the room temperature is still 4 F below the selected tem perature the compressor outdoor fan and indoor fan re main off After 714 minutes the indoor fan operates at ultra low speed for 30 seconds The normal dehumidifi cation operation is repeated for the newly sensed room temperature Heat Pump Heating Mode Heat Pump Systems Only When the Heat Pump mode is selected the indoor fan will operate at the selected speed if the speed is high medium or low unless overridden by the coil temperature to pre vent cold drafts If the indoor fan is in Auto mode the fan will change operating speeds depending on the differ ence between the room temperature the set point and the coil temperature The reversing valve will be deenergized The compressor cannot run for 3 minutes from the time the system starts up or for 3 minutes from the time it last operated When the temperature of the room is 8 F below the selected temperature the unit will operate in Heat Pump mode until the temperature is 6 F above the selected tem perature or the compressor runs for 40 minutes w
27. ff at a user selectable on and off time this is one time event only The unit will start in the same mode and at the same selected temperature as when the system shut off If the room temperature is not within approxi mately 5 F of the set point 40 minutes before start up the unit runs before the user selected on time is reached to achieve the set point temperature at start up Automatic Operation Mode for Cooling Only Systems The unit samples the air in the room Based on the room temperature the unit selects one of the following modes 1 Cooling Mode If the room temperature is more than 82 4 F with a preset temperature of 78 8 F 2 Dry Mode If the room temperature is more than 75 2 F and less than 82 4 F with a preset temperature of 77 F 3 Fan Only Mode If the room temperature is less than 75 2 F The preset temperature can be changed by 4 F using the remote control Automatic Operation Mode for Heat Pump Systems The operation mode will be determined after 20 seconds of room monitoring to determine the room temperature and the outdoor air temperature Test Mode The Test mode can be selected by setting the slide switch on the fan coil unit to TEST position The slide switch is located on the front of the unit as shown in Fig 17 The fan coil unit will start immediately there is no compressor time delay when using Test mode in Cool ing mode with an infinitely low set point The indoor fan s
28. g containing mounting screws taped to the mount ing bracket INSPECT SHIPMENT Upon receipt of shipment in spect unit Fig 1 for damage Forward claim papers di rectly to the transportation company Manufacturer is not re sponsible for damage incurred in transit Check all items see Table 3 and if any item is missing notify your Carrier distributor To prevent loss or damage leave all parts in the original packages until installation NOTE The expansion device is located in outdoor unit Step 2 Select Location Consult local building codes and NEC for special installation requirements NOTE There are several ways the unit may be installed in different types of wall construction These instructions do not cover all installation methods As a typical installation these instructions focus primarily on mounting the unit to wall studs in new construction Plan your installation carefully before you begin Listed below are some guidelines to follow when determining a lo cation for the unit 1 Center unit horizontally on the wall selected 2 Allow sufficient space for airflow clearance wiring re frigerant piping and servicing the unit See Fig 2 4 3 Place the unit so it faces normal location of room occupants TYPICAL OUTDOOR UNIT Fig 1 Typical Cooling Only Heat Pump System A clearance of 314 is the absolute minimum A clearance of 10 is recommended NOTE Remove unit front
29. g system repair or unit removal Diagnostic Codes This unit is equipped with a microprocessor control which continuously monitors the op eration of the unit If an operational fault is detected a fault is indicated by the flashing of the green UNIT ON light on the front of the fan coil unit A red LED light emitting diode indicator light located on the control board in the control box of the indoor unit will emit a flash code which can be used to troubleshoot a system problem The control will continue to monitor the unit and if the conditions which cause the fault are cleared the unit will return to normal op eration If the fault code is present for 5 cycles of the unit the unit will be locked out and the alarm is indicated by the flashing of the green UNIT ON light on the front of the fan coil unit To access the LED indicator light remove the front cover of the unit by removing the 3 screws holding it in place If the LED indicator light continuously flashes on for one second then off for one second the control is functioning properly and no fault is present A fast flashing LED indi cates that a fault has been detected Table 10 lists the num ber of quick flashes and the associated fault If the system does not operate and the LED indicator does not flash either DE la is off to the control board or the control board has alied System Tests System tests listed below are per formed continuously by the
30. hich ever comes first If the temperature of the room is less than 7 F below or equal to the selected temperature the unit operates in Heat Pump mode until the selected set point temperature plus 2 F is reached Electric Heat in Heat Pump Heating Mode 40QNH012 Heat Pump Unit Only Supplemental electric heat is enabled when the outside air thermistor located in the out door unit is below 40 F and the room temperature ther mistor is equa to or less than 5 4 F below set point Elec tric heat will remain on until 1 8 F above set point then will turn off Fan operation will be the same as described previously in the heat pump heating mode NOTE Electric heat control cannot be overridden Demand Defrost Mode Heat Pump Systems Only This unit uses a demand defrost system to remove frost from the outdoor coil during heating operation The indoor and outdoor fans are shut off during Defrost mode See Fig 16 For 40QNH units the electric heat is off during Defrost mode Sleep Mode The Sleep mode timer turns the unit off when the timer reaches zero minutes The durations that can be selected are 1 2 3 or 7 hours After the initial 30 minutes the user set point shifts approximtely 1 F warmer This sequence repeats itself every 40 minutes up to a total of 150 minutes When Sleep mode is enabled the display on the remote controller is dimmed 16 ON OFF Timer Mode The ON OFF timer will turn the unit on or o
31. iagnosis 15 Microprocessor Control Operation 15 CLEANING AND MAINTENANCE 18 19 Lubrication 0 cece eee eee 18 To Install or Replace Remote Controller Batteries os mc cist canbe ese bet acea cata a 18 To Set the Current Time 18 To Remove and Clean or Replace Air Filters 18 TO REMOVE AIR FILTERS TO CLEAN OR REPLACE FILTERS To Clean Indoor Unit Front Panel 19 To Clean Indoor Coil 19 To Clean Outdoor Coil Outdoor Unit 19 To Clean Condensate Drains 19 SERVICE seci ere ata See Sees Gai Sees 20 Diagnostic Codes 20 System Tests 0 cc cee cece eee tees 20 THERMISTOR TESTS COMPRESSOR FAILURE REVERSING VALVE FAILURE 38BK Only Page System Safeties and interlocks 20 INDOOR FAN FAILURE COMPRESSOR SHORT CYCLING PROTECTION INDOOR COIL FREEZE PROTECTION INDOOR COIL HIGH TEMPERATURE PROTECTION TROUBLESHOOTING 20 27 START UP CHECKLIST CL 1 CL 2 SAFETY CONSIDERATIONS Installing and servicing air conditioning equipment can be hazardous due to system pressure and electrical compo nents Only trained and qualified service personnel should install or service air conditioning equipment Untrained personnel can perform basic maintenance func tions such as cleaning coils and filters
32. ith wall studs Other types of applications require field supplied mounting hardware Be sure to follow all in stallation instructions in this manual carefully in order to achieve proper unit operation and be sure that you have all of the required parts before beginning installation Note that the cooling only and heat pump systems utilize a microprocessor control system to deliver optimum levels of comfort and efficiency Refer to Microprocessor Control Operation section on page 15 for details Table 1 System Combinations for Indoor and Outdoor Units INDOOR OUTDOOR High Wall Cooling Only AANBOD SBANDO 40QNE009 38BK009 High Wall Heat Pump a0GNHDT2 38BK012 NOTE A cooling only outdoor unit may not be matched with a heat pump indoor unit a heat pump outdoor unit may not be matched with a cooling only indoor unit Do not mismatch systems Table 2 Application Range COOLING Maximum Minimum Outdoor __indoor __ _ Outdoor 115 F DB 67 F DB 55 F D8 57 F WB HEATING Outdoor _ Indoor _ Outdoor 75 F DB 55 F DB 65 F WB LEGEND DB Dry Bulb WB Wet Bulb Unit may be equipped with a low ambient control that will allow op eration down to 20 F INSTALLATION Step 1 Complete Pre Installation Checks UNPACK UNIT S Store unit s in original packaging until moved to the final site for installation When removing unit from carton lift by its 4 corners Note that there is a plastic ba
33. ld result in personal injury or damage to unit A CAUTION Operation of unit on improper line voltage constitutes abuse and could affect warranty Refer to Table 7 for permissible operating limits Do not install unit in sys tem where voltage may fluctuate above or below per missible limits NOTE Use type NM per NEC power cable only pro vided between indoor disconnect switch if installed and indoor unit NOTE Install branch circuit disconnect per NEC of ad equate size to handle unit starting current Locate disconnect within sight from and readily accessible from outdoor unit per Section 440 14 of NEC Some codes allow indoor unit to share disconnect with outdoor unit if disconnect can be locked check local code before installing in this manner A WARNING According to NEC and most local codes the unit must have an uninterrupted unbroken ground to minimize per sonal injury if an electric fault should occur The ground may consist of electrical wire or metal conduit when in stalled in accordance with existing electrical codes Fail ure to follow this warning could result in an electric shock fire or death A CAUTION Do not short circuit the transformer it is fused The transformer can be short circuited by connecting the wrong wires or by touching a live wire to the side of a grounded control box INDOOR SECTION WIRING 1 Remove fan coil unit front cover 2 Route ground and power wires using NM wi
34. me 120 na o 20 3502 sro ao 1o oa ie 130 2 30517 om oe oar 1 02 140 E E E 077 ___o0s2 ___ ____0a7 150 seo 2005 226 005 069 674 160 ___ as neee 1936 085 os oe mo a e a oe a 058 160 4 065 ro n os oa os 150 s 362 o o 033 036 635 22 a DRE 2 RR E RI RC PR IRC II IRI 210 E a Ie za a 52 212 0 28 Circuit volts 5 vdc PROBLEM ACTION j Reset the circuit breaker or replace the fuse cme Restart fan coil unit operation when power is restored Confirm the available voltage Clean the air filter Check and reset if necessary Close window s and door s Insufficient Cooling Remove the obstruction Change the fan speed din rat conse toe temperate Clean the air filter Insufficient Check and reset if necessary Heating Window s and or door s are open Close window s and door s Remove the obstruction Unit stops Tum off the off timer function during operation Noral unt operelon Heat pump systems only WALL MOUNTING AIRFLOW i DRAIN LINE TOOPEN DRAIN 1 DONOT TRAP FLARED 1 CONNECTION 1 1 WEATHERPROOF i DISCONNECT 1i PER NEC Tt lu WALL STRAPS t CI R 1 C 2wnes 1 AGROUND in DRAIN AIRFLOW i EXTENSION U WIRELESS POWER AND HIGH CONTROLLER VOLTAGE CONTROL TO INDOOR UNIT 3 WIRES GROUND LEGEND FLARE NEC National Electrical Code CONNECTIONS Standard TO SEAVICE VALVES
35. n at the time the call for heating started then a compressor failure is indicated REVERSING VALVE FAILURE 38BK Only If the System is in Cooling or Dehumidification Mode Af ter 5 minutes of operation if the temperature at the indoor coil is 4 F more than at the time the call for cooling started then a reversing valve failure is indicated If the System is in Heat Pump Heating Mode After 5 min utes of operation if the temperature indicated by the out door coil is 4 F more than at the time the call for heating started then a reversing valve failure is indicated Table 10 System Fault Codes NO OF QUICK LED FLASHES SYSTEM FAULT 2 Room Air Thermistor Indoor Coil Thermistor Outdoor Coil Thermistor Compressor Malfunction Reversing Valve Malfunction Outdoor Air Thermistor Indoor Fan Failure 9 Discharge Air Thermistor LEGEND LED Light Emitting Diode Heat pump systems only NOTE If the LED light continuously flashes on for one second then off for one second the contro is functioning properly and no fault is present oO alai System Safeties and Interiocks INDOOR FAN FAILURE If the indoor fan rpm shows greater than 800 rpm for 30 seconds with the fan in the off mode then this test indicates an indoor fan failure Also if the indoor fan rpm is greater than 1700 rpm for 30 seconds then this test indicates an indoor fan failure COMPRESSOR SHORT CYCLING PROTECTION There is a
36. ndensate line must be made at a downward slope to ensure proper drainage See Mount Mounting Bracket on Wall section below for details Step 3 Mount Mounting Bracket on Wall 1 Decide how refrigerant will be piped If necessary knock out the appropriate pre punched holes Fig 5 on unit for piping and electrical connections 2 Remove bracket from fan coil unit by pulling it down from fan coil unit bottom as shown in Fig 7 3 Using a carpenter s level fasten mounting brackets into the studs in the wall at least 10 in away from the ceiling with all the screws provided Always be sure to insert screws into the top 2 holes indicated in Fig 7 Make sure the attached bracket will support a 200 lb vertical load For a masonry wall anchor shields can be used to attach bracket to the wall 4 Temporarily hang unit on bracket to check location and level 4 CAUTION If mounting bracket is not mounted level the indoor sec tion will be mounted unevenly and condensate drain age water may drip onto the floor Also a gap between the bracket and the wall may result in vibration and noise from the indoor section 5 Mark and cut condensate and piping holes a For piping through the wall mark the wall below the condensate connection and cut a 2 4 in hole into the wall at either point A or point B in Fig 8 NOTE The 214 in hole must be made at a downward slope to ensure proper condensate drainage See Fig 9
37. onnect the gray lead to terminal block lo Connect the white lead to terminal block location N cation 2 See Fig 11 Connect the bare copper ground lead to terminal block 5 Route the other end of the power cable through the wall location G Connect the red lead to terminal block lo raceway If required run to tndoor disconnect switch first cation 3 See Fig 11 6 Replace fan coil unit front cover Cooling Only Size 012 Units Connect the black lead to terminal block location L1 OUTDOOR SECTION WIRING Connect the red lead to terminal block location L2 Con IMPORTANT Be sure to check local codes for any nect the bare copper ground lead to terminal block lo iod i cation G Connect the yellow lead to terminal block lo pete Supe ed conduit whieh may be editiei cation 3 See Fig 11 Heat Pump Size 009 Units 1 Route ground and power wires Connect the black lead to terminal block location L 2 See e i cover to the electrical control compartment Connect the white lead to terminal block location N Naki dai REO Connect the bare copper ground lead to terminal block 3 Thread a threaded type strain relief into the electrical sup location G Connect the yellow lead to terminal block ply outlets location 3 Connect the orange lead to terminal block 4 Route the 14 gage 4 wire conductor cooling only sys location 1 Connect the gray lead to terminal block lo tems or the two 14 gage 3 wire conductors heat pump cation 2
38. peed will be at the high setting and the swing louvers will be on moving up and down NOTE The unit cannot be controlled by the remote con troller until the slide switch is returned to the REMOTE position Emergency Mode This mode is only to be used if the remote controller is lost damaged or the batteries are dis charged To initiate emergency mode manually move the slide switch on the fan coil unit to the EMER position Fig 17 The unit is automatically operated in cooling or heating 40QNE H units only mode according to room temperature Emergency operation settings are as follows 1 Operation mode AUTO 2 Fan speed AUTO 3 Cooling set point 77 F 4 Timer mode Continuous NOTE The unit cannot be controlled by the remote con troller until the slide switch is returned to the REMOTE position DEFROST REGION THREE NO DEFROST OPERATION ADJUSTS IF LONG DEFROST CYCLE DEFROST REGION TWO MORE THAN MINIMUM UNIT RUNTIME 6 MINUTES 6 HOURS ADJUSTS IF SHORT DEFROST CYCLE LESS THAN MINUTES OUTDOOR COIL TEMPERATURE F DEFROST REGION ONE MINIMUM UNIT RUN TIME 50 MIN 10 0 10 20 20 40 OUTDOOR AiR TEMPERATURE F A defrost will be initiated after 30 minutes of compressor run time if the outdoor coil temperature is less than 4 F Fig 16 Electronic Control Defrost Regions Map LEGEND EMER Emergency Fig 17 Slide Switch 17 CLEANING AND MAINTENANCE
39. r 8 minutes as follows the compressor and outdoor fan will operate for 3 minutes The indoor fan will operate in low speed and 30 seconds after the compressor stops the indoor fan stops The unit remains off for 1 minute and then the indoor fan starts in ultra low speed for 30 seconds The unit then switches to normal dehumidification operation Normal Operation One of the following will take place 1 When the temperature of the room is equal to or greater than the selected temperature by not more than 3 F the unit will operate for 8 minutes as follows the compres sor and outdoor fan will operate for 3 minutes The in door fan will operate in low speed and 30 seconds after the compressor stops the indoor fan stops The unit re mains off for 1 minute and then the indoor fan starts in ultra low speed for 30 seconds The normal dehumidifi cation operation is repeated for the newly sensed room temperature 2 If the room temperature is equal to or greater than the selected temperature but not by more than between 4 F and 6 F the compressor and outdoor fan operate for 4 minutes The indoor fan will run at ultra low speed and will stop 30 seconds after the compressor stops After 3 minutes the indoor fan runs at ultra low speed for 30 seconds The normal dehumidification operation is re peated for the newly sensed room temperature When the room temperature is equal to or greater than 4 F below the selected temp
40. re provided Remove the factory test leads connected to the power ter minal block These leads are for factory testing only and cannot be used for power connections 3 Route a 14 gage 4 wire conductor cooling only sys tems or two 14 gage 3 wire conductors heat pump sys tems through the power wiring hole in the contro box NOTE Connectors are factory supplied INCORRECT INCORRECT INCORRECT CORRECT WALL DRAIN PIPING Fig 10 Fan Coil Unit Drainage System Rear Piping Shown e gt Table 7 Electrical Data V PH VOLTAGE RANGE _SomPnesson UNIT 60Hz Min Max LRA eon Outdoor Section 1 iar 253 30 0 5 5 35 8 5 38BK012 308239 187 253 30 0 5 8 35 12 4 Indoor Section 38AN012 40QNB009 115 1 127 41 40QNB012 208 230 1 187 253 23 38BK003 40QNE009 1151 104 127 Al 40QNH012 208 230 1 187 253 23 LEGEND FLA Full Load Amps MOCP Maximum Overcurrent Protection Amps LRA Locked Rotor Amps RLA Rated Load Amps MCA Minimum Circuit Amps Table 8 Electric Heater Data INDOOR UNIT V PH Hz INPUT AMPS kW AT 230 V MIN WIRE se AWG sanno 207 33 75 LEGEND AWG American Wire Gage 4 Wire the indoor units as follows location G Connect the yellow lead to terminal block Cooling Only Size 009 Units location 3 Connect the orange lead to terminal block Connect the black lead to terminal block location L location 1 C
41. rminal Block Factory Wiring Field Control Wiring Field Power Wiring Accessory or Optional Wiring If any of the original wire fumished must be replaced it must be re placed with Type 90 C wire or its equivalent NAUN 23 Wire in accordance with National Electrical Code NEC and local codes Thermistor wiring cable 35 ft long provided with unit Transformer has internal 2A thermal fuse on the primary side OFM and IFM are protected with internal thermal overloads 38AN009 OUTDOOR SECTION it O aa FIELD POWER WIRES 40QNB009 FAN COIL DISPLAY PCB AS CNIO CN11 Lilgisteis Litel ois HIGH VOLTAGE WIRING OUTDOOR UNTT TO INDOOR UNIT USE CARLE weg II ee eee se ee Fig 22 38AN009 with 40QNB009 Cooling Only System Wiring Diagram 24 38AN012 OUTDOOR SECTION cae FIELD POWER WIRES aa sil LI LL T HIGH VOLTAGE WIRING RA Th CH OUTDOOR UNIT TO INDOOR UNIT rg USE CABLE SUPPLIED EL IDC Th n TRAN Fig 23 38AN012 with 40QNB012 Cooling Only System Wiring Diagram 25 38BK009 OUTDOOR SECTION E coe ODA Th TB2 aan FIELD POWER WIRES cii pot 115 1 60 e cn TO DISCONNECT i suau comp a CAP2 au HED av 40QNE009 FAN COIL OUTDOOR UNIT TO INDOOR UNIT HIGH VOLTAGE WIRING DISPLAY PCB AS i TUSE CABLE SUPPLIED re nl ey Fig 24 38BK009 with 40QNE009 Heat Pump System Wiring Diagram 26 TB2 FIELD POWER
42. rminal block location 3 Connect the orange lead to terminal block location 1 Connect the gray lead to terminal block lo cation 2 See Fig 11 Recas TERMINAL BLOCK OUTDOOR UNIT The 012 heat pump units have the following termina block connec tions 1 2 3 L1 L2 G The cooling only units are equivalent to their respective heat pump units except the cooling only units do not have terminal block connections 1 and 2 J Pai COVER 7 8 Heat Pump Size 012 Systems Connect the 2 black leads to terminal block location L1 Connect the 2 red leads to terminal block location L2 Connect the 2 bare copper ground leads to terminal block location G Connect the yellow lead to terminal block location 3 Connect the orange lead to terminal block location 1 Connect the gray lead to terminal block location 2 See Fig 11 Connect the other end of the field supplied 3 wire power conductor to the branch circuit disconnect Replace access cover Step 9 Iinstall Fan Coil Unit Onto Mounting Bracket 1 Hook the fan coil unit onto the top of the mounting bracket 2 See Fig 12 Snap the fan coil unit onto the mounting bracket as shown in Fig 12 IMPORTANT An audible snapping sound will be heard as the hook on the unit is secured into the hole on the mounting bracket Be sure unit is cor rectly mounted INDOOR AND OUTDOOR UNIT Fig 11 Electrical Connections TOP MOUNTING BRACKET HOOK HOL
43. se water hot ter than 105 F and DO NOT pour water into the fan coil unit Do not use abrasive or petroleum based clean ers damage to unit appearance will result To Clean Indoor Coil To clean the coil remove in door unit front panel and vacuum the coil fins Use care not to bend or damage fins To Clean Outdoor Coil Outdoor Unit 4 WARNING Some metal parts and sharp fins of outdoor unit coil can cause personal injury during cleaning Clean coil carefully To clean the outdoor coil 1 Remove any dirt or obstruction from discharge opening 2 Use garden hose to spray water on the coil Debris that collects between coil fins inhibits heat transfer direct the water spray between coil fins to flush out debris To Clean Condensate Drains Clean all drains and drain pans at the start of each cooling season Check the flow by pouring water into the drain mmr ce REMOVE COVER INSERT NEW BATTERIES PRESS NOTE Be sure to insert new batteries correctly as shown Fig 18 Installing or Replacing Batteries PRESS SET TIME PRESS Fig 19 Setting the Current Time REMOVE FILTER VACUUM CLEAN RINSE WITH WATER Fig 20 Air Filter Maintenance SERVICE 4 WARNING When servicing unit turn off all electric power to unit to avoid shock hazard or injury from rotating parts d CAUTION Do not vent refrigerant to atmosphere when servicing unit Recover refrigerant durin
44. t To operate the unit the factory supplied remote controller is required There are 9 QNB systems or 12 QNE H systems op erating modes including the off mode for the unit Each mode operates as follows Off Mode When the unit is in the Off mode all func tions compressor outdoor fan indoor fan and air sweep 15 are off except the reversing valve QNE H only which will stay deenergized if the unit was last operated in the Cooling mode Air Circulation Mode Fan Operation Only When Air Circulation mode is selected the indoor fan will operate continuously in the selected speed high medium low or auto If the Auto mode is selected the indoor fan will operate at low speed The compressor and outdoor fan are off The reversing valve QNE H only will remain in the last operating mode Cooling Mode When the Cooling mode is selected the indoor fan will operate continuously at the selected speed if the speed is high medium or low If the indoor fan is in Auto mode the fan will change operating speeds de pending on the difference between the room temperature and the set point The reversing valve QNE H only will be energized The compressor cannot run for 3 minutes from the time the system starts up or for 3 minutes from the time the compressor last operated When the tempera ture of the room is equal to or greater than the selected temperature the compressor and outdoor fan will operate un
45. t be set in the remote position The remote controller includes a wall mounted bracket To install the bracket attach bracket to the wall as shown in Fig 13 using factory supplied double sided tape Install factory supplied batteries into the remote controller per To Install or Replace Remote Controller Batteries section on page 18 and place the controller into the bracket so that it will be ready for use After Extended Shutdowns If the system has been turned off for more than 12 hours turn on the indoor and outdoor unit disconnect switches to supply power to the sys tem for 12 hours BEFORE starting the system Seasonal Changeovers When changing heat pump system from cooling to heating or heating to cooling or be fore starting cooling only system after it has been out of use for the winter season perform the following steps BEFORE starting the system 1 Inspect and clean the outdoor unit particularly the coil 2 Clean or replace the air filters in the indoor unit 3 Clean the indoor unit drain pan and drain pipe and re move any obstructions 4 Turn on the indoor and outdoor unit disconnect switches to supply power to the system for 12 hours before start ing the system To Turn the Unit On and Off To turn the unit on press the orange ON OFF button see Fig 14 Unit will start To stop unit operation press the ON OFF button again Unit will stop Refer to Owner s Manual enclosed with the fan coil uni
46. t for full remote control operating details Adjusting Airflow The airflow direction may be ad justed up and down using the remote controller and from side to side by manually moving the vents For cooling only units and heat pump units when in the cooling mode set the louvers to discharge straight out parallel to the floor see Fig 15 For the heat pump units operating in Heating mode it is recommended that the air discharge louvers be set to discharge vertically see Fig 15 The Swing Range shown in Fig 15 is the range which will provide maximum occupant comfort in each mode It is recommended that the louvers be positioned within this range using the remote controller NOTE The full swing range for the selected mode will au tomatically be used if auto fan mode is selected Operating Mode Memory After the system is turned off or after a power failure the system remains in the last operating mode selected When the system is turned back on or when power is automatically restored operation contin ues in the same operating mode as when power shut down Automatic Operation Auto Mode If Auto mode is selected the system automatically switches the operating mode from heating heat pump systems only to cooling or from cooling to heating heat pump system only depending on the selected temperature NOTE Between the cooling cycle and the heating cycle there is a neutral zone of approximately 2 F above and
47. the interconnecting tube with a tube bender until the tube fiare end coincides with the flare connection on the service valves c Carefully thread the flare nut onto the flare connection point of the service valve d Tighten the flare nut See Table 6 for proper tighten ing torque 4 Refrigerant line purge procedure a Remove the service valve caps b Use a hex key wrench to carefully rotate the valve stem of the suction service valve 90 degrees one quarter turn Leave the valve open for approximately 5 sec onds then return the valve to its closed position c Purge refrigerant through the suction valve service port for 5 seconds following accepted refrigerant removal procedure d Rotate the valve stem of the liquid line service valve approximately one quarter turn counterclockwise Leave the valve open for approximately 3 seconds then re tum the valve to its closed position e Inspect the refngerant line connections for leaks using soapy water or electronic leak detector f If no leaks are found open both valves Reinstall ser vice valve caps g Thoroughly reinspect all joints and connections for re frigerant leaks Use soapy water or electronic leak de tector h Tape both insulated tubing lines together Begin tap ing from the bottom of the outdoor section to the point where the tubing enters the wall Do not tape too tightly this reduces the tubing insulation efficiency FLARE NUT SIZE in 1
48. the mounting screws Make piping connections NOTE Right rear piping connections are the preferred configuration RIGHT REAR AND BOTTOM PIPING CONNECTIONS 1 Carefully separate the tubing and condensate drain tube from the shipping brackets 2 Be careful not to bend or kink the tubing Gently rotate the tubing 90 degrees 3 Carefully position the indoor section onto the wall bracket Be sure the tubing and drain tube are routed through the piping hole in the wall 4 Check that the indoor section is mounted level to ensure proper condensate drainage and to avoid possible water damage Be sure the drain tube is sloped toward the out side and is not kinked or bent Ensure that any drain ex tension is made outside the wall 10 RIGHT SIDE PIPING CONNECTIONS 1 Carefully remove the tubing and the condensate drain tube from the shipping brackets 2 Be careful not to bend or kink the tubing Gently rotate the tubing 180 degrees 3 Using a hand tube bender carefully bend the tube ends until they coincide with the raceway opening 4 Carefully position the indoor section onto the wall bracket Be sure the tubing and drain tube are routed through the piping hole in the wall 5 Check that the indoor section is mounted level to ensure proper condensate drainage and to avoid possible water damage Be sure the drain tube is sloped toward the out side and is not kinked or bent Ensure that any drain ex tension is made outsi
49. til the room temperature is 2 F below the set point and then shut off When the room temperature is less than the selected temperature the compressor and outdoor fan re main off Maximum Dehumidification Mode When the Dehu midification mode is selected the indoor fan will operate continuously at the selected speed if the speed is high me dium or low If the indoor fan is in Auto mode the fan will change operating speeds depending on the room tem perature If the room temperature is below the set point the indoor fan will run at ultra low speed and the com pressor could run for up to 4 minutes Ultra low speed is a control driven speed not user configurable used to sample the space when the fan would normally be off The re versing valve QNE H only will be energized The com pressor cannot run for 3 minutes from the time the system starts up or for 3 minutes from the time the compressor last operated Initial Operation When the mode is first selected one of the following occurs 1 If the room temperature is above or equal to the selected temperature the unit will operate for 16 minutes and the compressor and outdoor fan will operate The indoor fan will operate as in the Cooling mode After 16 minutes of operation or when the room reaches 2 F below set point the unit switches to normal dehumidification operation 2 If the room temperature is below the selected tempera ture the unit will operate fo
50. ystem operation frost build up on the indoor coil and blown fuses Inspect and clean or replace the air filters monthly TO REMOVE AIR FILTERS 1 Open fan coil unit front panel lift See Fig 20 2 Pull the filters down to remove TO CLEAN OR REPLACE FILTERS Filters should be vacuumed and washed with warm water see Fig 20 Shake filter to remove any excess water dry thoroughly and re place by sliding filter behind front grille until filter snaps in place If the filter has begun to break down or is torn it needs to be replaced Replacement filters are available through your Carrier distributor NOTE DO NOT put filters in the dishwasher Table 9 Cleaning and Maintenance Schedule TASK INDOOR UNIT Clean Air Filters Clean Drain Pipe Clean Condensate Drain Pan Replace Batteries in the Remote Controller Clean Indoor Unit Front Panel OUTDOOR UNIT Clean the Fins From Outside Open the Unit and Clean Fins inside Remove Dust From Electrical Parts Check Electrical Connections are Tight Clean Outdoor Fan Check that Outdoor Fan Assembly is Tight Clean Drain Pan MONTHLY 18 QUARTERLY YEARLY XIX XXI XI XIX To Clean Indoor Unit Front Panel If the front panel of the unit becomes dirty or smudged wipe the out side of the front panel with a soft dry cloth If necessary use a mild liquid detergent and wipe off carefully with a dry cloth A CAUTION When cleaning the front panel NEVER u
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