Carrier 38CG024- User Manual

APPLICATION DATA 1 . Unit selection Select equipment to either match or be slightly less than anticipated peak cooling load. This provides better humidity control, fewer unit cycles, and less part-load operation. Heating and cooling design loads must both be checked. To meet heating requirements, ca...

HIGH WALL UNITS — These units should be positioned as high as possible on the wall for best air circulation. Allow adequate clearances above the unit for servicing (removing unit covers). Place the unit in the middle (horizontally) of the wall selected (if possible). Select an outside wall if availa...

FAN COIL UNITS CONDITION 40QN 40QA 40QK 40CG 40CS 40HD Maximum Room Temperature (F) 84 84 95 Minimum Room Temperature (F) 64 64 55 Maximum Return Air (F) Dry-Bulb 85 85 85 Wet-Bulb 72 72 72 Minimum Return Air (F) Heat Pump 28 28 28 Maximum Saturated Suction Temperature (F) 55 55 55 Minimum Saturated...

11. Fresh air and ducting a. The ceiling-suspended fan coil units may bring in up to 30% fresh air. The percentage of air allowable iscalculated based on the unit high speed cfm. Air quan-tities above this level may exceed compressor maxi-mum saturated suction temperatures. A power ventilation kit i...

Accessories – Field Installed Low Ambient Kit: The Low Ambient Kit is a solid state head pressure controller designed to control condenser fan cycling, and is activated by a pressure sensor. It is specifically designed to control fan motor cycles in response to saturated condensing pressure. This de...

Filter Rack Package – A fully assembled 2” Filter Rack and 1” T.A.W. filter with side access Multi-zone Adapter – Duct collars, internal insulation, and mounting holes. (3) Outlets for 024, (5) outlets for the 036, and (6) outlets for the 048 Electric Heat Package – Pre-assembled electric strip heat...

Charcoal Filter Kit: The charcoal (carbon) filter kit is available for High Wall fan coils. This accessory improves indoor air quality by removing volatile organic compounds (VOCs), orders, and micro-particles from the air. The filter kit can be installed before or after the unit has been mounted on...

Dimensional Drawing OPEN SIZE BACK OPENINGS 2 3 4 5 6 7 6 A (in.) 9.1 13.4 17.7 22.1 26.4 30.7 (mm) 230 340 450 560 670 780 B (in.) 11.2 15.5 19.85 24.2 28.5 32.8 (mm) 284 394 504 514 724 834 A01101 WALL W W THICKNESS A B 173(6.8 ”) 45 (1.8 ") 112(4. 4 ”) Two Way Air Conditioner A01102 WALL W W ...

Guide Specifications – Section 6 Product Product High-Wall Heat Pump Units High-Wall Cooling Only Units Ceiling-Suspended Cooling Only Units Ceiling Suspended Heat Pump Units In-Ceiling Cassette Cooling Only Units In-Ceiling Cassette Heat Pump Units Outdoor Heat Pump Only Units Outdoor Cooling Only ...

Guide Specifications High-Wall Heat Pump Units HVAC Guide Specifications Size range: ¾ to 2 Tons Cooling Capacity Carrier Model Number: 40QNE/H & 38BK Part 1 – General 1.01 SYSTEM DESCRIPTION Indoor, wall-mounted, direct-expansion fan coil to be matched with the commercial condensing or heat pum...

1 Guide Specifications Console/Ceiling Suspended Cooling Only System Heat Pump System (With Supplemental Electric Heat) Multi-Zone System (Cooling Only & Heat Pump) HVAC Guide Specifications: 40CG and 38CG Cooling Only System - 1 ½, 2, and 2 ½ Tons Capacity 40CS and 38CS Heat Pump System - 1 ½, ...

2 1.04 WARRANTY One-year parts, 5-year compressor limited warranty Part 2 – Product 2.01 EQUIPMENT A. Unit Cabinet: Outdoor cabinet shall be zinc-coated steel finished with baked enamel paint. Inlet grilles shall be attractively styled. Indoor cabinet is made up of high impact plastic. Mounting brac...

3 MORE ON NEXT PAGE 5. Filter needs cleaning status indication. 6. Automatic airsweep control to provide on or off activation of airsweep louvers. 7. Auto mode to provide modulating fan speed based on difference between temperature setpoint and space temperature. 8. Fan only operation to provide air...

D. Coil: Coil shall be copper tube with aluminum fins and galvanized steel tube sheets. Fins shall be bonded to the tubes by mechanical expansion. A drip pan under the coil shall have a factory-installed condensate pump and drain connection for hose attachment to remove condensate. Note: The units u...

Guide Specifications Outdoor Heat Pump Only Units Commercial Condensing Units HVAC Guide Specifications Size range: ¾ to 5 Tons Cooling Capacity Carrier Model Number: 38BK, 38QR Part 1 – General 1.01 SYSTEM DESCRIPTION A. Outdoor-mounted, air-cooled split system outdoor section suitable for on-the-g...

Part 2 – Products 2.01 EQUIPMENT A. General: Factory assembled, single piece, air-cooled outdoor unit. Contained within the unit enclosure shall be all factory wiring, piping, controls, compressor, full (38BK009,012) or holding (38BK018,024 and 38QR) charge of R-22 refrigerant, and special features ...

Part 2 – Products 2.01 EQUIPMENT A. General: Factory assembled, single piece, air-cooled outdoor unit. Contained within the unit enclosure shall be all factory wiring, piping, controls, compressor, full charge of R-22 refrigerant, and special features required prior to field start-up. B. Unit Cabine...

Guide Specifications Satellite Systems Cooling Only Units HVAC Guide Specifications Size range: 2, 3, & 4 Tons Cooling Capacity Carrier Model Number: 40HD and 38HDC/HDL Part 1 – General 1.01 SYSTEM DESCRIPTION Indoor, above-ceiling mounted, direct-expansion fan coil to be matched with the 38 HDC...

E. Motors: Motors shall be permanently lubricated ball bearing with inherent overload protection. Fan motors shall be 3-speed. F . Internal Condensate Pump: The condensate pump shall remove condensate from the drain pan when gravity drainage cannot be used. The lift capability of the condensate pump...

K. Special Features (Field Installed): Electronic Programmable Thermostat- Thermostat shall be commercial grade and shall provide 7-day, 4-event scheduling. Integral sub-base shall be included. Thermostat shall also provide 3-speed fan switchover capability, air sweep auto changeover, and shall not ...

Physical Data : High Wall – Section 8 Product Product Cooling and Heat Pump Models

Physical Data : Under Ceiling/Console -- Section 8 Product Product Cooling Only and Heat Pump Models – Under Ceiling Cooling Only and Heat Pump Models – Console

Physical Data : Cassette – Section 8 Product Product Cooling and Heat Pump Models Hydronic Cassette

Duct Free Systems - Physical Data - Hydronic Cassette Unit 42WKN 004 008 010 016 020 Pipe Version 2 2 2 4 2 2 4 Operating Weight (lb) 57.8 60 64.4 65.6 108.9 115.6 117.8 Max Entering Water Temp Deg. F 180 180 180 180 180 180 180 Fan (qty) 1 1 1 1 2 2 2 RPM High 755 755 1015 1015 755 1140 1140 Med 54...

Physical Data : Satellite – Section 8 Product Product Cooling Only and Heat Pump Models

Physical Data : Condenser – Section 8 Product Product 38 Series AN & BK Condensers 38 Series HDC Condensers 38 Series HDL Condensers 38 Series QRC Condensers 38 Series HDS Condensers 38 Series CG, CS, SB, and SC

Sound Data "Console" Fan Coils (A Weighted) Model Sound Sound Fan Sound Power Data Octave Band (dBa) Pressure (dBa) Power (dBa) Speed 125 250 500 1000 2000 4000 8000 n/a 65.0 High n/a n/a n/a n/a n/a n/a n/a 40CG-018---301RM n/a 58.0 Medium n/a n/a n/a n/a n/a n/a n/a 38.0 55.0 Low n/a n/a n...

Sound Data "Satellite" Fan Coils (A Weighted) Model Sound Sound Fan Sound Power Data Octave Band (dBa) Pressure (dBa) Power (dBa) Speed 125 250 500 1000 2000 4000 8000 40HD-024 40HD-036 40HD-048 NOT AVAILABLE AT THIS TIME

System Cross Match Cooling Only High Wall Heat Pump High Wall Nominal Indoor Indoor Outdoor Outdoor Nominal Indoor Indoor Outdoor Outdoor Capacity Unit Unit Unit Unit Capacity Unit Unit Unit Unit Carrier Bryant Carrier Bryant Carrier Bryant Carrier Bryant 9,000 40QNB009-1 619EAX0090E0 38AN-009-1 538...

System & Unit Specifications – Section 11 Product Product Cooling Only System Specifications Heat Pump System Specifications Unit Specifications

Heat Pump System Specifications High Wall Nominal Indoor Outdoor ARI Capacities ARI Sound Rating (dBa) Capacity Unit Unit C/O H/P CFM SEER EER HSPF Indoor Indoor Outdoor Outdoor Tons Btuh Btuh Power Pressure Power Pressure 0.8 40QNE009-1 38BK-009-1 8,700 9,000 252 10.0 9.2 6.8 50.6 42.3 63.4 55.1 1....

Unit Specifications Vert Vert Max Tube Connections Dimensions Model Voltage MCA MOCP Lift Drop Tube Liquid Vapor Width Height Depth Weight Note #1 Note #1 Lgth 40QNB009-1 115-1-60 Note #2 Note #2 -- -- -- -- -- 33.5 11.0 6.3 18.7 40QNB012-1 115-1-60 Note #2 Note #2 -- -- -- -- -- 33.6 11.8 7.3 24.2 ...

Condenser Only Ratings – Section 12 Application Application HDC HDL

Condenser Only Ratings SST Air Temperature Entering Condenser (F) (F) 55 65 75 85 95 105 115 125 38HDC018 TCG 19.7 18.0 16.4 14.8 13.3 11.8 10.4 9.0 30 SDT 77.6 86.9 96.4 106.0 115.8 125.6 135.5 146.2 KW 1.1 1.2 1.3 1.4 1.4 1.5 1.5 1.5 TCG 22.1 20.3 18.6 16.9 15.2 13.7 12.1 10.5 35 SDT 78.8 87.8 97....

Condenser Only Ratings SST Air Temperature Entering Condenser (F) (F) 55 65 75 85 95 105 115 125 38HDC036 TCG 33.6 32.1 30.5 28.7 25.7 23.1 20.6 18.3 30 SDT 80.9 90.2 99.6 110.2 127.2 141.4 154.4 166.5 KW 1.8 2.0 2.3 2.6 3.1 3.6 4.1 4.6 TCG 36.9 35.2 33.6 31.6 28.3 25.5 22.9 20.3 35 SDT 82.7 92.0 10...

38HDL CONDENSER-ONLY RATINGS See Legend on next page. Click here to view the next page of condenser-only performance data . SST (F) AIR TEMPERATURE ENTERING CONDENSER (F) 55 65 75 85 95 105 115 125 38HDL018 30 TCG 17.8 16.9 16.0 15.1 14.3 13.4 12.6 12.0 SDT 78.8 88.3 98.0 107.7 117.5 127.4 137.3 145...

Performance Data & Expanded Ratings - Systems Index Table Multi Split 4 Ton 38HDS048 Click here to return to System Index Table. Indoor Section Net System Model Circuit Qty Cooling Index Capacity Table # 40QNB018 A 2 46,000 45 40QNB018 B 2 45 40QNB024 A 1 45,800 45 40QNB018 B 2 52 40QNB024 A 1 4...

Duct Free Systems - Piston/Charge Combinations Cooling Only High Wall Heat Pump High Wall Indoor Outdoor AccuRater Charge Indoor Outdoor AccuRater AccuRater Charge Unit Unit Piston Lbs Unit Unit Piston Piston Lbs No Note #1 Indoor Outdoor Note #1 40QNB009 38AN-009-1 Cap Tube 1.5 40QNE009 38BK-009-1 ...

Refrigerant and Long Line Applications – Section 15 Application Application AN009/012 & BK009/012 38HDC 38HDL38HDS 38QRC & 38BK018/024 38 C & S Series

Refrigerant Lines – 38HDC 1. The 38HDC units are shipped with a full charge of R-22 refrigerant based on the smallest charge combination. 2. All charges, line sizes, and capacities are based on the fan coil with the smallest charge and 25 feet ofrefrigerant lines. For system charge see Piston/Charge...

Long Line Applications – 38 HDC (continued) 7. Changes in piston size. The metering device for long line applications must be adjusted to compensate for thefrictional losses due to the long refrigerant lines, refrigerant line accessories, and indoor coils above or belowthe outdoor unit. The AccuRate...

Refrigerant Lines - 38HDL 1. The 38HDL units are shipped with a full charge of R-22 refrigerant based on the smallest charge combination. 2. All charges, line sizes, and capacities are based on the fan coil with the smallest charge and 25 feet ofrefrigerant lines. For system charge see Piston/Charge...

GROUND LEVEL TRAP "B" Solenoid* Diagram #3 *Not required for AN/BK009/012 – 38 CG, SC, CS, SB

SELECTION PROCEDURE (With Example) Rev “A” 09/19/01 I Determine the type of fan coil, which best suits the application (refer to Systems Index table in the Expanded Rating Section #13 ). Duct-free split systems have many types of fan coils to choose from with overlapping capacities. Select the syste...

Drawings – Section 17 Application Application 40QN - 009 40QN - 012 Cooling Only & Heat Pump 40QN - 018 40QN - 024 40QA - 024 40QA - 036 40QA - 048 40QA - 060 40QK - 024 40QK - 036 40QK - 048 40HD - 024 40HD - 036 40HD - 048 40CG 40CS

DIMENSIONAL DRAWING, BASE UNIT – 40QN009, 012 FAN COIL UNITS UNIT 40QN WEIGHT A B C Lb Kg in. mm in. mm in. mm 009 18.7 8.5 33.46 850 11.02 280 6.29 160 012 24.2 11.0 36.61 930 11.81 300 7.28 185 NOTES:1. Dimensions are in inches. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Ref...

DIMENSIONAL DRAWING, BASE UNIT – 40QN018, 024 FAN COIL UNITS UNIT 40QN WEIGHT 018 39 Lb [17.5 Kg] 024 43 Lb [19.5 Kg] NOTES:1. Dimensions in [ ] are in millimeters. 2. Direction if airflow. 3. Refrigerant, drain, and power connections may be made in unit rear, bottom, left side, or right side. 4. Re...

Drawings – Section 17 Application Application 38 AN 009 38 AN - 012 38 HDC 018 Cooling Only 38 HDC 024 38 HDC 030 38 HDC 036 38 HDC 048 38 HDC 060 38 CG 38 HDS 024 Cooling Only 38 HDS 048 Multi-Split 38 SC 38 BK 009 38 BK 012 Heat Pump 38 BK 018 38 BK 024 38 QR 018 38 QR 024 38 QR 030 Heat Pump 38 Q...

DIMENSIONAL DRAWING, BASE UNIT — 38HDS CONDENSING UNITS UNIT A B C D E F G H Ft-in. mm Ft-in. mm Ft-in. mm Ft-in. mm Ft-in. mm Ft-in. mm Ft-in. mm Ft-in. mm 024 2-1 1 ⁄ 8 638 3-0 15 ⁄ 16 938 1-2 9 ⁄ 16 370 1-4 406 1-11 7 ⁄ 16 595 1-5 3 ⁄ 16 437 1-5 1 ⁄ 2 445 1-8 1 ⁄ 8 511 048 3-1 3 ⁄ 16 945 3-8 9 ⁄ ...

DIMENSIONAL DRAWING, BASE UNIT – 38BK018, 024 HEAT PUMP UNITS UNIT A B C D E F ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm 018 2-1 1 ⁄ 8 638.2 3-0 15 ⁄ 16 938.2 1-2 9 ⁄ 16 369.9 1-4 406.4 1-11 7 ⁄ 16 595.3 1-5 3 ⁄ 16 436.6 024 2-1 1 ⁄ 8 638.2 3-0 15 ⁄ 16 938.2 1-2 9 ⁄ 16 369.9 1-4 40...

AccuRater It is extremely important that all refrigerant lines and the AccuRater metering device be insulated on heat pumps. On cooling only units, the liquid line may be left un-insulated. Use any acceptable heat resistant closed-cell foam insulation (minimum 3/8-in. wall thickness). When insulatin...

Charge Verification – Section 19 Installation Installation 38HDC, HDL, QR, CG, CS 38 HDS SB, SC (MULTISPLIT)

REFRIGERANT CHARGING (Multi Split) WARNING: To prevent personal injury, wear safety glasses and gloves when handling refrigerant. Do not overcharge system this can cause compressor flooding. WARNING: Service valves must be fully back seated to close service port. There is no Schrader valve at the se...

Controls – Section 20 Installation Installation High Wall Under Ceiling, Cassette, & Satellite 38HDS Console

Controls — systems using high wall fan coils 40QNB/QNE control system The 40QN unit is 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 indoor coil. The 40QNE ...

• Maximum Dehumidification Mode — When the dehumidification 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 changes operating speeds depending on the room temperature. If the room temper...

*Minimum unit run time starts when outdoor coil temperature drops below 34 F, then accumulates run time regardless of coil temperature. Electronic Control Defrost Regions Map -- GO TO PAGE 2

Controls — systems using Under Ceiling, Cassette or Satellite fan coils Automatic air sweep All Under Ceiling units are equipped with an automatic air sweep feature, which automatically directs the airflow louvers up and down to provide optimum room air circulation. If the auto sweep feature is not ...

DFB switches the unit back to normal heating operation. If the DFT remains closed the DFB switches the unit back to heating operation after 10 minutes. When the DFB changes back to heating mode, the RVR (reversing valve relay) is de-energized and the reversing valve switches back to heating operatio...

Controls - 38HDS Unit operation NOTE: AUTO fan mode is used as the unit operation example for ALL fan coil units in this section. Contact your local Carrier dealer for operation information in other fan modes. Fan coil units — Each fan coil unit has a self-contained control system that determines th...

the 38HDS microprocessor if the other refrigerant circuit is still operating. The outdoor fan only stops when both compressors are off. Refer to 38HDS Microprocessor Control of Outdoor Fan section below for more details. 38HDS-microprocessor control of outdoor fan — The microprocessor control has a ...

Thermostat Installation Installation Operation Photographs and illustrations

4 • When transmitting a command from the remote controller,point the transmitter toward the receiver on the right side of theair conditioner. • The air conditioner confirms the receipt of a command bysounding two beeps. • Make sure that no objects block the clear line of sight betweenthe remote cont...

5 INSERTING BATTERIES IN THE REMOTE CONTROLLER Before using the remote controller you must insert two 1.5VAAA Alkaline batteries, as follows: • Slide off and remove the battery compartment cover. • Insert the batteries, making sure to follow the polarity (+,-)markings. • Replace the battery compartm...

6 • Press the On/Off button 3 to transmit your selections to theair conditioner 1. If you choose to place the airflow deflector in a fixed posi- tion, the deflector stops at the angle in which it was locatedwhen you pressed the On/Off button. NOTE: When you have finished selecting the various menus ...

7 • Scroll through the Timer periods as explained in the previoussection • Choose the SLEEP Timer period • Enter the desired Start/Stop times (SLEEP-START andSLEEP-STOP). • Press the SET button. SETTING A DAILY TIMER PERIOD You can set the Timer periods so that the air conditioner operatesautomatica...

8 When the air conditioner is OFF: • Press DELAY button. The clock advances one hour, while theword START and the number 3 flash. • Each additional pressing of the DELAY button advances theclock by one hour. • Make sure you point the remote controller at the air condi-tioner while you press the DELA...

9 MORE ON NEXT PAGE airborne particles. More frequent cleaning may be neces-sary depending on indoor air quality. 3. Use drapes, curtains, or shades to keep direct sunlight from heating room. 4. Do not obstruct front grille air intake section. 5. Start your air conditioner before outdoor temperature...

Installation Diagrams – Section 22 Installation Installation 40 QN 009 & 012 40 QN 018 & 024

Installation Diagram s – Section 22 Installation Installation 40 QA 40 C

TYPICAL INSTALLATION — CEILING-SUSPENDED SYSTEMS LEGEND f — Phase NEC — National Electrical Code PipingLine Voltage24 VThermistor *Standard. †Accessory item. **Field supplied. NOTES:1. All piping must follow standard refrigerant piping techniques. 2. All wiring must comply with the applicable local ...

Installation Diagram s – Section 22 Installation Installation 40 Q K 40 HD

TYPICAL INSTALLATION — IN-CEILING CASSETTE SYSTEMS LEGEND f — Phase NEC — National Electrical Code PipingLine Voltage24 V *Standard. †Accessory item. **Field supplied. NOTES:1. All piping must follow standard refrigerant techniques.2. All wiring must comply with applicable local and national codes.3...

Service – Section 23 Installation Installation 40 QN – High Wall 40 QA – Under Ceiling 40 CG and CS – Console 40 HD – Satellite 40 QK – Cassette

SERVICE – High Wall Systems WARNING: When servicing unit, turn off all electric power to unit to avoid shock hazard or injury from rotating parts. CAUTION: Do not vent refrigerant to atmosphere when servicing unit. Recover refrigerant during system repair or unit removal. DIAGNOSTIC CODES This unit ...

SERVICE Under Ceiling, Cassette, Console, & Satellite Fan Coils WARNING: When servicing unit, turn off all electric power to unit to avoid shock hazard or injury from rotating parts. CAUTION: Do not vent refrigerant to atmosphere when servicing unit. Recover refrigerant during system repair or u...

SERVICE – 38HDC, 38QR, & 38BK018,024 WARNING: Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electrical shock or injury from rotating fan blade. OUTDOOR FAN A reinforced wire mount holds the outdoor fan assembly in position...

NOTE: If pressure switch needs to be replaced, there is a Schrader valve located under the switch so that system will not need to be evacuated. CRANKCASE HEATER (If Unit is so Equipped) Heater prevents refrigerant migration and compressor oil dilution during shutdown when compressor is not operating...

SERVICE – 38HDL WARNING: Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electrical shock or injury from rotating fan blade. OUTDOOR FAN A reinforced wire mount holds the outdoor fan assembly in position. See Fig. 11 for proper ...

SERVICE – Multi Split WARNING: Before performing recommended maintenance, be sure unit main power switch is turned off, and be sure all disconnects for indoor fan coil units are open. These systems typically have one disconnect per fan coil unit. Failure to turn off unit main power and open all disc...

Start-Up Instructions – Section 24 Installation Installation 40 QN Check List

Start-Up Instructions – Section 24 Installation Installation 40 C – Console 40 QA – Under Ceiling Check List

START-UP – Under Ceiling Systems WARNING: Never operate unit without a filter or with grille removed; damage to the unit or personal injury may result. Make the following checks and complete the Start-Up Checklist before system start-up. Refer to Installation, Start-Up and Service Instructions for s...

START-UP – Console Systems WARNING: Never operate unit without a filter or with grille removed; damage to the unit or personal injury may result. Make the following checks and complete the Start-Up Checklist before system start-up. Refer to Installation, Start-Up and Service Instructions for system ...

START-UP - Multi-Split LEAK TEST Field piping and all tubing connections must be leak tested by the pressure method. Use R-22 at approximately 25 psig backed up with an inert gas to reach a total system pressure not to exceed 245 psig. EVACUATE AND DEHYDRATE Field piping and fan coil must be evacuat...

START-UP CHECKLIST Outdoor Unit: Model Number ________________ Serial Number ____________________ Indoor Unit: Model Number __________________ Serial Number ____________________ PRE-START-UP (For One or More Systems) Outdoor Unit IS THERE ANY SHIPPING DAMAGE? (Y/N) ___________________ IF SO, WHERE? ...

CHECK MOUNTING OF SUBBASE TO WALL, IS IT TIGHT (DO NOT APPLY EXCESSIVE FORCE TO MOUNTING SCREW)? (Y/N) _____ Units with Wireless Remote Controller CHECK MOUNTING OF INTERFACE BOARD; ARE STANDOFFS USED (TO MAINTAIN FIXED SEPARATION ABOVE SHEET METAL CHASSIS)? (Y/N) _____ CHECK CONNECTION OF POWER SUP...

Cleaning & Maintenance – Section 26 Maintenance/Repair Maintenance/Repair 40QN

40 QN CLEANING AND MAINTENANCE To avoid the possibility of electric shock, before per-forming any cleaning and maintenance operations al-ways turn off power to the system by pressing theorange ON/OFF button on the remote controller. Turnoff the outdoor disconnect switch located near the out-door uni...

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, usea mild liquid detergent and wipe off carefully with a dry cloth. When cleaning the front panel, NEVER use water hot-ter than 105 F,...

Cleaning & Maintenace – Section 26 Maintenance/Repair Maintenance/Repair 40 QA 40 CG, CS

40 QA CLEANING AND MAINTENANCE To avoid the possibility of electric shock, before per-forming any cleaning and maintenance operations, al-ways turn off power to the system by pressing the modebutton on the remote thermostat until the display shows‘‘OFF,’’ and turning off the outdoor disconnect switc...

Table 8 – Cleaning and Maintenance Schedule TASK MONTHLY QUARTERLY YEARLY INDOOR UNIT Clean Air Filters X Clean Drain Pipe X Clean Condensate Drain Pan X Clean Indoor Coil X Clean Indoor Unit Front Panel X OUTDOOR UNIT Clean the Fins From Outside X Open the Unit and Clean Fins Inside X Remove Dust F...

40 QK SERVICE AND MAINTENANCE Remove unit grille, filter, and condensate pan for clean- ing, lubricating, or replacing parts. To avoid personal injury or damage to unit, do not ser- vice until all power sources are shut down, locked out, and tagged out. Failure to do so could result in personal inju...

38 HDC, 38 HDL, 38 QR MAINTENANCE WARNING Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electric shock or injury from rotating fan blade. I. LUBRICATION A. Fan-Motor Bearings Oiling hole are provided at each end of outdoor-fan...

38 HDS MAINTENANCE WARNING Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electric shock or injury from rotating fan blade. I. LUBRICATION A. Fan-Motor Bearings Oiling hole are provided at each end of outdoor-fan motor. Remove ...

38 CG, CS, SB, SC CARE AND MAINTENA N CE Step 1 – Maintenance (Outdoor Unit) WARNING Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electric shock or injury from rotating fan blade. CLEANING COILS Coil should be washed out with...

Troubleshooting & Fault Codes – Section 27 Maintenance/Repair Maintenance/Repair 40 QN – Troubleshooting 40 QN – Fault Codes

HWError Code.doc MORE ON NEXT PAGE 2/09/01 Troubleshooting Failure Check/Action Fan coil doesn’t receive signal from remote. No BEEP heard from fan coil. Unit runs in TEST mode. • Check plug connection at receiver board and main board(CN12) • Check remote for signal transmission indicator • Operate ...

HWError Code.doc 02/09/01 • Check CN1 plug for voltage If voltage is recorded at the CN1 plug and LED does not flash, replace board. Insufficient cooling, Insufficient Heating (Heat Pump) • Check for blocked air filter – clean filter • Outdoor unit obstructed – remove obstruction • Check temperature...

HWError Code.doc MORE ON NEXT PAGE 02/09/01 High Wall Diagnostic Codes Error Code Flashes * Error Check/Action 2 Room Air thermistor malfunction If system reads thermistor value: Short condition: greater or = 194 deg F Open condition: less or = -40 deg F Check plug connection on main circuit board (...

HWError Code.doc 02/09/01 7 Outdoor Air thermistor malfunction If the following occurs with thermistor: Short condition: greater or = 194 deg F Open condition: less or = -40 deg F Check plug connection on main circuit board (CN17). Check termistor cable connection at terminal board on indoor and out...

Troubleshooting & Fault Codes – Section 27 Maintenance/Repair Maintenance/Repair 40 QA – Troubleshooting Thermostat – see Controls 40 CG, CS Troubleshooting (for Remote, see Control s )

TROUBLESHOOTING If the under-ceiling fan coil unit fails to start or operate properly, sometimes the problem is minor and can be handled without a service call. Refer to Table 9 for some common problems, causes, and typical solutions. See Fig. 25 and 26 for additional system troubleshooting details....

Troubleshooting & Fault Codes – Section 27 Maintenance/Repair Maintenance/Repair 40 QK – Troubleshooting Thermostat – see Controls

Trouble Shooting – Cassette If any of the original wire furnished must be replaced, it must be replaced with type 90 deg C or its equivalent. Wire in accordance with National Electric Code (NEC) and any local codes. Transformer is thermally protected and will reset automatically. Indoor fan motors h...

Troubleshooting & Fault Codes – Section 27 Maintenance/Repair Maintenance/Repair 40 HD – Troubleshooting Thermostat – see Controls

Trouble Shooting – Satellite If any of the original wire furnished must be replaced, it must be replaced with type 90 deg C or its equivalent. Wire in accordance with National Electric Code (NEC) and any local codes. Transformer is thermally protected and will reset automatically. Indoor fan motors ...

Troubleshooting & Fault Codes – Section 27 Maintenance/Repair Maintenance/Repair 38 HDC – Troubleshooting 38 HDL – Troubleshooting 38 HDS – Troubleshooting 38 HDS – Fault Codes38 QR – Troubleshooting, Cooling Cycle 38 QR – Troubleshooting, Heating Cycle 38 CG, CS, SB, SC – Troubleshooting