Hokkaido HTFL 261 XMR Service Manual
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Hokkaido HTFL 261 XMR Service Manual

Multi friendly air conditioning systems
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MULTI FRIENDLY Air Conditioning Systems

SERVICE MANUAL

Cassette type Indoor Units:
HTFL 261 XMR
HTFL 351 XMR
HTFL 411 XMR
HTFL 531 XMR
Outdoor Unit:
HCNL 821 XMR
With Ozone-friendly Refrigerant R410A
DRAFT
Release 1.1b
YR-H71
YR-E12

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Summary of Contents for Hokkaido HTFL 261 XMR

  • Page 1: Service Manual

    MULTI FRIENDLY Air Conditioning Systems SERVICE MANUAL DRAFT Release 1.1b Cassette type Indoor Units: HTFL 261 XMR HTFL 351 XMR HTFL 411 XMR HTFL 531 XMR YR-E12 YR-H71 Outdoor Unit: HCNL 821 XMR With Ozone-friendly Refrigerant R410A...

  • Page 2: Table Of Contents

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units TABLE OF CONTENTS CONTENTS ..................................p. 2 1. DESCRIPTION OF PRODUCTS & FEATURES ......................p. 3 2. SPECIFICATIONS ................................. p. 5 3. SAFETY PRECAUTIONS .............................. p. 10 4. NET DIMENSIONS OF THE INDOOR UNITS ....................... p. 12 5.

  • Page 3: Description Of Products & Features

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 1. Description of products & features 1.1 Brief Introduction for T1 working condition Climate type Type of Air Conditioner Cooling Only 18 ℃~43℃ Heat pump -7℃~43℃ Electricity Heating ~43℃ 1.2 Operating Range of Air Conditioners Working temperature range Rated Maximum...
  • Page 4 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 1.3 Product features Highly efficient, can match with the universal outdoor unit The outdoor unit can match with cassette, wall mounted type, duct, console and ceiling floor type indoor unit. One set outdoor can match with multiple indoor units, up to 4 sets. Even when you have already installed the air conditioner, if you want to add or reduce one unit, go ahead freely as long as your operation complies with our design.
  • Page 5 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Self-diagnostic function In the course of operation, if the failure occurs, the failure code will display on the wired controller or on the operation panel. Then according to the failure code chart, you can eliminate the failure soon. Central control function, if connected with a central controller (This device will be available in the near future).

  • Page 6: Specifications

    15 (indoor unit higher than outdoor unit) Maximum Max.Piping length between IU & OU Max.Total length 1. The above performance data are from the combination of HCNL 821 XMR+2*HTFL 261 XMR+2*HTFL 351 XMR. 2. Large drop and long piping installation will obviously reduce the total capacity.

  • Page 7: Indoor Units

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 2.2 Indoor Units HTFL 261 XMR HTFL 351 XMR Item Model Cooling Heating Cooling Heating Function —— 9000 10000 12000 13000 Capacity BTU/h 2600 2900 3500 3800 Capacity Dehumidifying capacity 10‐³×m³/h 3 ×...
  • Page 8 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Item HTFL 411 XMR HTFL 531 XMR Function —— Cooling Heating Cooling Heating Capacity 4100 4600 5000 5500 Dehumidifying capacity 10‐³×m³/h Power cable 3 × 0.75mm —— Communication cable 2x(0.75~1.25mm ), must be shielded ——...
  • Page 9 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Norminal conditions: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB. Outdoor temperature (cooling): 35℃DB/24℃WB, outdoor temperature (heating): 7℃DB/6℃WB. The noise level will be measured in the third octave band limited values, using a Real Time Analy- ser calibrated sound intensity meter.

  • Page 10: Safety Precautions

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 3. Safety precautions 22 9/, +, 2,7 95 9 1, 3, 8:7,8 95 67,;,49 9/, - 4= 4573 2 6/,453,4 7, -5:4+ such as 7,-70.,7 49 -753 2, 104. 83,22 5- -0704. 62, 8, *:9 5-- 9/, 65<,7 8:662= 033,+0 9,2= 4+ *549 *9 9/, +, 2,7 95 -04+ 5:9>...
  • Page 11 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 5 .55+8 57 45 5+= 08 6,73099,+ 54>9 *2, 4 07 *54+09054,7 <09/ < 9,7 95 , 62 *,+ 54 57 89 4+ 54 5:9+557 :409 This may cause electrical shock. 54 9 56,7 9, 9/, 07 *54+09054,7 <09/ + 36 / 4+8 544,*9 , 79/04.

  • Page 12: Net Dimensions Of The Indoor Units

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 4. Net dimensions of the Indoor Units Cassette units: HTFL 261, 351, 411, 531 XMR Overlapped distance between the ceiling and the panel: 25mm Drainage pipe Liquid pipe Gas pipe Suspension bolt Ceiling Panel B>...

  • Page 13: Installation Instructions

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units gc q59:~33~:165 q59:8;+:165 HUDL261XMR HUDL351XMR HUDL411XMR HUDL531XMR y7-+1.1+~:1659 z0- 4~+015- 19 ~,~7:1<- 15 .6336=15/ 91:;~:165 Outdoor Outdoor -13-...
  • Page 14 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units ■R410A The working pressure of R410A is approximately 1.6 times higher than R22. Because the oil in the refrigerant is different, please do not mix them. Refrigerant R22 (single) R410A (mixed) R407C (mixed) Mineral oil (SONTEX 200LT) Synthetic oil (POE oil)
  • Page 15 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units ■Piping material 1. Use the correct refrigerant piping and materials for R410A 2. For the pipe wall thickness, see the table below: Pipe diameter Φ6.35 Φ9.52 Φ12.7 Φ15.88 Φ19.1 Pipe wall thickness Note: Always observe and comply with the local regulations when installing the refrigerant piping.
  • Page 16 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 489 22 9054 5528 489 22 9054 75*,+:7,8 enough 489 22 9054 75*,+:7,8 type -16-...
  • Page 17 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units field, on field) on field) "In the case of no ceiling" on field) A?A@BC -17-...
  • Page 18 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units install In case of no response from the remote controller, 10 seconds of the -18-...
  • Page 19 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Elkqoli _lu Nfjfqp lc m^kbi _l^oa fkpq^ii^qflk -4. Kkpq^ii qeb m^kbi _l^oa fk qeb afob`qflk peltk fk qeb cfdrob1 -5. Veb fk`loob`q afob`qflk tfii obpriq fk t^qbo ib^h^db/ jb^ktefib the swing motor and the signal receiver will not be connected successfully. :1 Rfmfkd Elkkb`qflk Hi^ob `lkkb`qflk 60t^v s^isb...
  • Page 20 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Llfkq Hfq qeb krq lk ^ka c^pqbk Um^kkbo -5. Veb j^ufjrj ibkdqe ^ka aolm ebfdeq lc `lkkb`qfkd mfmb Veb j^ufjrj ibkdqe fp between 10~25m for each unit. Um^kkbo Veb j^ufjrj aolm ebfdeq fp between 10~15m. To ensure the efficiency, pipes shall be as short as possible.
  • Page 21 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units ;15 Yfofkd lc fkallo rkfq Veb afpq^k`b _bqtbbk qeb pfdk^i tfobp ^ka qeb mltbo `^_bp pelria _b ^q ib^pq 83jj1 4-N. 5-P. 4-N. 5-P. Vl tfoba `lkqoliibo -Kk `^pb lc rpfkd tfoba Vl lqebo `lkqoliibo YR-E12.
  • Page 22 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Pressing the ON/OFF button on the remote controler will exit the address setting procedure. -22-...
  • Page 23 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Is noise excessive? -23-...

  • Page 24: Installation Of The Outdoor Unit

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Installation of the Outdoor Unit Disposal of the old air conditioner Consult your local authorities for the name and address of the waste materials collecting centers and Before disposing an old air conditioner that goes waste paper disposal services nearest to your house.
  • Page 25 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Cautions All electrical repairs must be carried out by 4. The wiring method should be in line with the local qualified electricians. Inadequate repairs may result wiring standard. in a major source of danger for the user of the air conditoiner.
  • Page 26 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Safety precautions To ensure proper installation, please read this safety precautions carefully before the installation. After installation, start the unit correctly and ensure that you show the customer how to operate and maintain the units.

  • Page 27: Installation Accessories

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units (c) Where there is strong radiation. It will affect the unit's control system, causing malfunction of the unit. (d) Where there are flammable gas, dirt, and volatile matter (thinner, gasoline) exist, these items will cause a fire risk.

  • Page 28: Power Source

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Power source Before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponded name plate. Install an exclusive branch circuit of the power. A receptacle shall be set up in a distance where the power cable can be reached.
  • Page 29 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Limitations on the installation 3. Limitations values on the piping work . HKEL XMR Indoor Unit HTFL XMR Indoor Unit HUDL XMR Indoor Unit HCNL 821 XMR Outdoor Unit HSFL XMR Indoor Unit Concerning the piping length information, please refer to the following table.

  • Page 30: Refrigerant Piping Work

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Refrigerant piping work 1. Selection of pipe To this unit, both liquid and gas pipes shall be insulated as they become low temperature in operation. Use optional parts for piping set or pipes covered with equivalent insulation material. Liquid pipe 6.35mm ( 1/4'' ) x 0.8mm 9.52mm ( 3/8'' ) x 0.8mm...
  • Page 31 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Refrigerant piping work 4. Cutting and Flaring work of piping Pipe cutting is carried out with a pipe cutter and burs must be removed. After inserting the flare nut, flaring work is carried out. Size A (mm) Pipe diameter* Liquid side...
  • Page 32 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Purging method: to use vacuum pump Liquid stop valve 1 .Detach the service port's cap of 3-way valve, the valve Gas stop valve 2 way valve rod's cap for 2-way valve and 3-way valves, connect the 3 way valve Gauge maifold (R410A) service port into the projection of charge hose (low) for...

  • Page 33: Wiring Work

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Wiring work 1. Electric wiring Note: The air conditioner must use special circuit , and wiring by the qualified electrician according to the wiring rules specified in national standard. The grounding wire and the neutral wire shall be strictly separated. Connect the neutral wire with grounding wire is incorrect.
  • Page 34 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Wiring work Crimp connection method for connection wire After connection, the wire must be fastened by wire cover. The wire cover shall press on the protection coat of the connection wire, as shown in the figure on the previous page. Note: When connecting the wiring, confirm the terminal number of indoor and outdoor units carefully.
  • Page 35 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Wiring work 5. Example of wiring diagram. To wired controller YR-E12 terminals (A, B, C) Please refer to the indoor unit installation manual to find detailly how to set and check the communication address.

  • Page 36: Test Running

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Test running Before starting the test running, please confirm the following works have been done successfully. 1) Correct piping work; 2) Correct wiring work; 3) Correct match of indoor and outdoor unit; 4) Proper recharge of refrigerant if needed;...

  • Page 37: Parts And Functions

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 6. Parts and Functions Cassette type Indoor Units: F_RWP UX]^NZ +9RZ OUX_ MRZNL\RXW LJW KN JMS][\NM K` ][RWP \QN FI?B> K]\\XW XW \QN ZNVX\N LXW\ZXUUNZ, CYNZJ\RWP :XW\ZXU DJWNU 9RZ ?WUN\ >ZRUUN 9RZ =RU\NZ +?W[RMN XO \QN ?WUN\ >ZRUUN, CYNZJ\RWP :XW\ZXU DJWNU...

  • Page 38: Infrared Controller Yr-H71

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 7. Oial\l`_ ^jinljgg`l [U=NCA 1.TEMP Setting Button RSWKE 1. The functions marked with (*) are not available on HTFL XMR Indoor Units. -38-...
  • Page 39 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units To select fan speed: LOW, MID, HIGH, AUTO. Pj\_dib nc` ]\nn`ls U`kg\^dib nc` ]\nn`ls ^jhk\lnh`in gd_ Jdmkg\s l`pd`q U`hjn` Ijinljgg`l Sk`l\ndji Igj^f V`n -39-...
  • Page 40 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units L\i Sk`l\ndji GXWS< ISSP < NKGW \i_ JU[ Sk`l\ndji *11/ ., 3 -40-...
  • Page 41 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units AUTO G_eomndib \dl agjq _dl`^ndji -41-...
  • Page 42 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units abnormally. If the louver works abnormally, stop the unit, restart and adjust the louver by remote controller. Gan`l oidn mnjkmE NdinmE Vg``k Loi^ndji Xm` ja VPKKT aoi^ndji -42-...
  • Page 43 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Rjn`mE Wdh`l SR?SLL Loi^ndji -43-...
  • Page 44 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Wdh`l SR=SLL Loi^ndji -44-...
  • Page 45 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 7.Cancel TIMER mode Gonj l`mn\ln aoi^ndji m`nndib V`nndib Q`ncj_E I\i^`g Q`ncj_E "SLEEP" button on the remote controller 10 times twice mode will Rjn`mE operation used being button after the Oa nc` oidn c\m ijn nc` "Sleep" button or function, please enable/disable the Auto restart function buy pressing the "Swing"...

  • Page 46: Functions Of The Optional Wired Controller Yr-E12

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 8. Functions of the optional wired controller YR-E12 ;=34 50< 24<A?0: ;=34 50< @D8<6 =>4?0A8=< 0BA= 0BA= @A0<31F 50< =<:F 7867 >?4-740A 2==: 345?=@A A4;> 740:A7 58:A4? 740A 740:A7 27429 @D8<6 2:=29 34;0<3 ;0<B0:...
  • Page 47 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units [FAN] [HIGH]：High fan speed [FAN] [MED]： Medium fan speed [FAN] [LOW]： Low fan speed [FAN] [FIX]： Fixed fan speed, it will display only when fixed fan speed is requested to main indoor unit. [CENTRAL]：...
  • Page 48 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units AUTO operation, COOLING, HEATING and DEHUMIDIFICATION operation 1) Start up operation: press the button of ON/OFF, the system will start up, and will display [MODE][AUTO]；[FAN][AUTO]；[ROOM TEMP.]+“24°C” ；[CLOCK]+”12：00”. 2) Select MODE: press the MODE button, then you will see in the display section [MODE] switch over in below sequence:[FAN ONLY]→[COOL]→[DRY]→[HEAT]→[AUTO]→[FAN ONLY].
  • Page 49 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units TIMER ON, press [TIMER]. [TIMER][ON] will be constantly on. Then [TIMER] [OFF] flashes, press the clock +/- button to adjust the time of TIMER OFF, press [SET]. The time sequence of timer on and timer off will determine the mode is [TIMER] [ON] →[OFF] or [TIMER] [OFF] →[ON].
  • Page 50 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units CENTRAL control function (only if a central controller is present) When the central controller selects [CENTRAL] mode, the buttons in the wired controller except for [CHECK] will be invalid. VENTILATION mode (only for the unit with fresh air function or heat recovery function) Press [RECOVERY] button, then the unit will switch over the ventilation mode: [VENTILATION][AUTO]...
  • Page 51 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units How to change the function switches on the YR-E12 wired controller? Type State of Function description switch Changeover of Wired Connected Central controller controller and central Cut off Wired controller controller Changeover of type of Connected Set as simplified controller...

  • Page 52: Refrigerant Diagram

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 9. Refrigerant Diagram -52-...
  • Page 53 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units -53-...

  • Page 54: Electrical Control Functions

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 10. Electrical Control Functions A) Outdoor Electrical Control Functions: 1. Switch setting and functions: Item Set in factory SW5-1: Outdoor fan motor selection ON: DC fan motor; OFF: AC fan motor. SW5-2: Defrosting data setting ON: 6 degrees;...
  • Page 55 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 3.2 Outdoor frequency control 3.2.1 Compressor running frequency range: 20~90RPS 3.2.2 Definition of high-efficiency operation and its frequency control In order to meet the cooling request at high ambient temperature and the heating request at low ambient temperature, we set the high-efficiency operation.
  • Page 56 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units £ 90℃ -5degree/30seconds, and reduce to 0 degree gradually Heating mode Indoor modification angle +50degree/30seconds, it will stop until up to the max. permitted 100℃< discharging temp. opening angle 90℃< discharging temp. £100℃ Keep the angle £90℃...
  • Page 57 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Te≤C×TA－α Herein: C：TA＜0℃，C=0.8 TA≥0℃，C=0.6 According to SW2, the setting is as follow: in the place easy to frost, it is H; when out of factory, it is M. Jumper M(out of factory) selection 8(E) 6(E)
  • Page 58 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 3.7.4 Defrosting operation flow chart Beginning Fixed frequency Indicated FQY Defrosting FQY 80 Hz（E） Soft startup compressor Outdoor motor Send defrosting signal to indoor Auto 4-way valve Spray valve SV2 OFF 450-pulse 450-pulse 350-pulse(E)
  • Page 59 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 3.8 Frequency control when Td is too high Purpose: make compressor frequency control if the discharging temp. is too high, to lower the discharging temp. efficiently and ensure the system can run normally. If keeping for 10s, the unit stops, 3 minutes later, the unit can re-startup.
  • Page 60 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 3.10 High pressure protection When the input signal of pressure switch is high level: 1, that shows there is no protection. When the input signal of pressure switch is low level: 0 for 1 minute, that shows high pressure protection works.
  • Page 61 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units In cooling, confirm through Tc2AVE: Normal operation -25℃ Min. running FQY 20HZ -30℃ SV2 OFF & 20HZ -35℃ SV2 ON & 20HZ -40℃ Keep for 5 seconds, unit stops and alarm -45℃...
  • Page 62 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units B) Indoor Unit Electrical Control Functions 1. Dip switch functions: 1.1 SW01 detailed definition is as following: SW01 Function ---- Passive contact valid Passive contact invalid To set indoor address(by remote/wired controller) To set indoor address (by dip switches) AC 3-speed motor...
  • Page 63 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units ..DRY, COOL, FAN) Indoor communication address 1 Indoor communication address 2 Indoor communication address 3 Indoor communication address 4 Indoor communication address 5 D O N O T A S S I G N Indoor communication address 6 D O N O T A S S I G N Indoor communication address 7...
  • Page 64 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 6.2 After indoor receives the ON command from wired controller, it will firstly confirm the outdoor current operation mode. If they are the same modes, indoor unit will run as the request of remote controller. If they are different modes, the indoor units will be kept in standby mode until the previously operating units will be in thermostat OFF condition.
  • Page 65 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Full OFF 54º 54° Swing range Standard position in HEAT, COOL mode 0° 12. Water pump control 12.1 Water pump will be electrified when indoor unit enters non-heating mode until indoor unit stops. 5 minutes later after indoor unit stops, water pump will stop.
  • Page 66 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units will change mode; the sleep will begin to count. A. In cooling/dry mode, after running for 1 hour, the set temp. will increase 1°C, another 1 hour later, the set temp. will increase 1°C again, then 6 hours (or set time-2) later , it will stop. B.
  • Page 67 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Digit type Temp. of indoor sensor Tai Actual data, decimal Temp. of indoor sensor Tc1 Actual data, decimal Temp. of indoor sensor Tc2 Actual data, decimal Opening angle/2 of indoor EEV Actual data, decimal Indoor address Actual data, hex...

  • Page 68: Diagnostic Information (Trouble Shooting)

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 11. Diagnostic information (trouble shooting) Failure codes on the indoor Unit when using YR-H71 infrared remote controller: NUMBER OF FLASHINGS OF THE TIMER LAMP ON THE FAILURE DESCRIPTION INDOOR UNIT LED PANEL or faulty wires are from...
  • Page 69 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units s (related to Indoor Unit) on the wired remote controller YR-E12 when Pump motor disconnected, or at wrong position or the float switch has broken down or the float switch is disconnected or at wrong position. (* shows the failure is resumable) -69-...
  • Page 70 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units s (related to Outdoor Unit) on the wired remote controller YR-E12 FAILURE CODES TROUBLE SHOOTING POSSIBLE REASONS (CHECK ON THE WIRED (Outdoor unit) REMOTE CONTROLLER) Faulty defrost sensor Te Sensor disconnected, or broken, or short circuit Faulty sensor Tao Sensor disconnected, or broken, or short circuit Faulty sensor Ts...
  • Page 71 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units HCNL 821 XMR Outdoor Unit error codes FAILURE STATE OF TROUBLE POSSIBLE REASONS CODE LED 5-4-3-2-1 SHOOTING Faulty defrost sensor Te Sensor disconnected, or broken, or short circuit Faulty sensor Tao Sensor disconnected, or broken, or short circuit Faulty sensor Ts Sensor disconnected, or broken, or short circuit...

  • Page 72: Troubleshooting

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Troubleshooting: Trouble 1: No display on the operation panel Start Check if display Replace display panel and the panel and check unit matched again well If the red diode If the power Check the terminal and green diode terminal block has...
  • Page 73 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Trouble 3: Communication failure between indoor and outdoor Start As per the wiring Re-wiring, and diagram, check if check again communication wiring is correct Check if the If the power cable and the PCB is faulty, communication port communication wire are...
  • Page 74 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units Trouble 7: Fault in drain system Confirm the float switch failure according to the fault code list Clean the drain pipe Is drain pipe blocked? and water pump Check if pump Replace the pump motor motor is normal Is the drain pan too dirty...

  • Page 75: Electrical Data

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 12. Electrical data 12.1 Wiring diagram HCNL 821 XMR Outdoor Unit: -75-...
  • Page 76 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 12.2 Circuit diagram Outdoor Unit HCNL 821 XMR: PCB layout -76-...

  • Page 77: Wiring Diagram

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 12..3 Wiring diagram Indoor Units: HTFL 261, 351, 411, 531 XMR DRAINING ON/OFF SWING PUMP MOTOR CARD MOTOR ～ TRANSFORMER CN22 FUSE1 T3.15A 250VAC CN20 CN11 capacitor CN21 2uF 450V SW01 SW02 SW03 CN16 AC FAN ～...
  • Page 78 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 12.4 Circuit diagram Indoor Units: HTFL 261, 351, 411, 531 XMR -78-...
  • Page 79 12.5 Sensors' description and their resistance values Models Name Characteristics of temperature/resistance R25=10KΩ±3% E-coil temp.sensor B25/50=3700K±3% R25=23KΩ±2.5% Suction temp. sensor B25/50=3700K±3% HTFL 261 XMR HTFL 351 XMR R25=10KΩ±3% Coil temp.sensor HTFL 411 XMR B25/50=3700K±3% HTFL 531 XMR R25=23KΩ±2.5% Ambient temp. sensor B25/50=4200K±3% R80=50KΩ±3%...
  • Page 80 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units R25=23KΩ±2.5% R25=23KΩ±2.5% R25=10KΩ±3% R25=10KΩ±3% R25=10KΩ±3% B25/50=4200K±3% B25/50=4200K±3% B25/50=3700K±3% B25/50=3700K±3% B25/50=3700K±3% Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) T(℃) T(℃) T(℃) T(℃) T(℃) -20℃ 281.34 24℃ 24.12 -20℃ 90.79 10.43 2.09 -19℃ 263.56 25℃ 85.72 2.03 247.04...

  • Page 81: Table Of Possible Combinations And Related Performance Data

    MULTI FRIENDLY Air conditioning Systems - HTFL Indoor Units 13.1 Table of possible combinations and related performance data: Cooling MULTI-FRIENDLY COOLING Compatible indoor units Combinations Power Capacity Output/kW Current(A) Annual consumption(kW) Outdoor unit System Room 1 Room 2 Room 3 Room 4 INDOOR TOTAL CAPACITY 500h...
  • Page 82 MULTI FRIENDLY Air conditioning Systems - HTFL Indoor Units 13.2 Table of possible combinations and related performance data: Heating MULTI-FRIENDLY HEATING Compatible indoor units Combinations Capacity Output/kW Power consumption(kW) Current(A) Annual Outdoor unit System Room 1 Room 2 Room 3 Room 4 INDOOR TOTAL CAPACITY 500h...

  • Page 83: Noise Levels

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 14. Noise levels -83-...
  • Page 84 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units -84-...

  • Page 85: Air Velocity And Distribution

    MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units 15. Air velocity and distribution a. Cooling / Air Velocity Distribution Blowy angle: 40 : Air Velocity Distribution b. Cooling / Temperature Distribution Blowy angle: 40 ° Temperature Distribution -85-...
  • Page 86 MULTI FRIENDLY Air Conditioning Systems - HTFL Indoor Units c. Heating / Air Velocity Distribution Blowy angle: 70 ° Air velocity Distribution d. Heating / Temperature Distribution Blowy angle: 70 ° Temperature Distribution -86-...
  • Page 87 TERMAL srl Via della Salute, 14 40132 Bologna - Italy Tel. +39.051.41.33.111 Fax +39.051.41.33.112 www.termalgroup.com Due to on-going technological development of the products by the manufacturer, we reserve the right to vary the technical specifications at any time without notice.

This manual is also suitable for:

Htfl 351 xmrHtfl 411 xmrHcnl 821 xmr

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