Download Print this page

Haier HBU-18CF03 Service Manual

Commercial air conditioning
Hide thumbs

Advertisement

Commercial Air Conditioning

SERVICE MANUAL

HBU-18CF03
Features
Long distribution pipe and high drop
Auto-check function
Flexible and easy installation
Fresh air hole, more natural, more healthy
Infrared remote controller & wired controller
Optional safety devices and much more precision control device
Manual code: SYJS-019-05REV.0
Model
HDU-42CF03/H
HPU-42HF03
Edition: 2005-12-01

Advertisement

loading

  Also See for Haier HBU-18CF03

  Related Manuals for Haier HBU-18CF03

  Summary of Contents for Haier HBU-18CF03

  • Page 1: Service Manual

    Commercial Air Conditioning SERVICE MANUAL Model HDU-42CF03/H HBU-18CF03 HPU-42HF03 Features Long distribution pipe and high drop Auto-check function Flexible and easy installation Fresh air hole, more natural, more healthy Infrared remote controller & wired controller Optional safety devices and much more precision control device ●...
  • Page 2: Table Of Contents

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 CONTENTS Contents………………………………………………………..2 1. Description of products & features………………………..3 2. Specification…………………………………………………..7 3. Safety precaution……………………………………………11 4. Net dimension of indoor and outdoor……………………..13 5. Installation instructions………..…………………………….16 6. Parts and functions………………………………………….37 7. Remote controller functions………………………………...40 8. Refrigerant diagram………………………………………..61 9.
  • Page 3: Description Of Products & Features

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code explanation BU---18 C F 03 Applicable voltage: 03 stands for 200-220V/50Hz Design number Product type: H stands for heat pump type, C stands for cool...
  • Page 4: Product Features

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 1.4 Products line up HBU-18CF03 HDU-42CF03/H HPU-42HF03 1.5 Product features 1.5.1 Outdoor unit Flexible and easy installation The outdoor can meet the higher request of installation. From the specifications, you will find for each unit, how long and how high the piping will be, which will be convenient for design and installation.
  • Page 5: Indoor Unit

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 1.5.2 Indoor unit 1.5.2.1 Noblest cassette indoor unit Compact indoor unit body The dimsension of indoor unit is , convenient for installation in the ceiling, perfectly 570×570×260 match with the decor of indoor decoration and be in accordance with the standard of aesthetics.
  • Page 6 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Free setting of air discharging duct The number of the airflow outlet and its installation position can be freely selected according to the environment of the room, sufficiently considering the load of the room and the uniform temperature of the room to realize more perfect comfort.
  • Page 7: Specification

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 2. Specification item Model HBU-18CF03 Function cooling heating Capacity BTU/h 17000 Capacity Sensible heat ratio Total power input 1780 Max. power input 2400 EER or COP 2.81 Dehumidifying capacity 10‐³×m³/h Power cable section 3×2.5mm2...
  • Page 8 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 item Model HDU-42CF03/H Function cooling heating 42600 Capacity BTU/h Capacity 12.5 Sensible heat ratio Total power input 4700 Max. power input 5700 EER or COP 2.66 Dehumidifying capacity 10‐³×m³/h Power cable section 5×2.5mm2...
  • Page 9 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 item Model HPU-42HF03 Function cooling heating 41000 44000 Capacity BTU/h Capacity Sensible heat ratio Total power input 4700 4850 Max. power input 5200 5600 EER or COP 2.55 2.68 Dehumidifying capacity 10‐³×m³/h Power cable section 5×2.5mm2...
  • Page 10 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: standing-on-floor unit: If the unit cooling capacity is over 28000W, the noise level should be measured at built-in-ceiling unit: the front, left, right directions respectively.
  • Page 11: Safety Precaution

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 3. Safety precaution of indoor and outdoor Carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of Safety Cautions and Suggestions. Incorrect operations may result in severe consequences of death or serious injuries.
  • Page 12 WARNING! No goods or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker. It easily cause electrical shock without The falling of goods and people may circuit breaker. cause accidents. Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire...
  • Page 13: Net Dimension Of Indoor And Outdoor

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 4. Net dimension of indoor and outdoor HBU-18CF03...
  • Page 14 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H 1006 Power wiring terminal >300 >100 >150 >100 >600...
  • Page 15 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HPU-42HF03 PQSRT DC.D<< EDJ;F >;7H;F H?B;F 051/ +NN, 1006 Power wiring terminal >300 >100 >150 >100 >600...
  • Page 16: Installation Instructions

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5. Installation instructions 5.1 Outdoor unit "Edging" for protection of electric wires from an opening edge. Selection of the place of installation Select the place of installation satisfying the following conditions and, at the same time, obtain a consent from the client or user.
  • Page 17 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 (2) Installation where the area with strong winds. Install the unit so that the air outlet section of the unit must NOT be faced toward wind direction. Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following .
  • Page 18: Refrigerant Piping

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H HPU-42HF03 Refrigerant piping (1) Outline piping (2) Piping size Φ6.35x0.8mm Liquid pipe HBU-18CF03 Ф12.7x1.0mm Gas pipe Ф9.52x0.8mm Liquid pipe HDU-42CF03/H Ф19.05x1.0mm Gas pipe Ф9.52x0.8mm Liquid pipe HPU-42HF03 Ф15.88x1.0mm Gas pipe...
  • Page 19: Piping Connection

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Precautions for refrigerant piping Do not twist or crush piping. Be sure that no dust is mixed in piping. Bend piping with as wide angle as possible. Keep insulating both gas and liquid piping.
  • Page 20 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 First step: 0.3MPa (3.0kg/cm 2 g) pressurize over 3 minutes. Second step: 1.5Mpa (15kg/cm 2 g) pressurize over 3 minutes. Large leakage will be found. Third step: 3.0 MPa (30kg/cm 2 g) pressurize about 24 hours. Little leakage will be found.
  • Page 21: Electric Wiring

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 If after over 2 hours vacuumizing, the vacuum degree is below -755mmHg, close the V L and V H on the meter separator and stop vacuumizing. 1 hour later to confirm if the vacuum degree changes. If changes, it indicates there is leaking point in the system.
  • Page 22 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 (2) Wiring connection Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by terminals. For the detailed wiring connection with the indoor units, see the corresponding indoor operation and instruction manual.
  • Page 23 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5.2 Indoor unit installation 5.2.1 Cassette indoor unit(HBU-18CF03) ** , .+ ,...
  • Page 24 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03...
  • Page 25 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03...
  • Page 26 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03...
  • Page 27 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5.2.2 Duct indoor unit(HDU-42CF03/H) 5.2.2.1 Preparation before installation (1) The position relation among hoisting screw (unit: mm) 1270 Down side Up side 1103 (2) If necessary, cut the opening installation and checking needed on the ceiling. (If has ceiling)
  • Page 28: Drain Piping

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5.2.2.2 Installation of indoor unit Hanging bolt M10 nut M10 washer Fix the indoor unit to the hanger bolts. If required, it is possible to suspend the unit to the beam, etc. Directly by use of the bolts without using the hanger bolts.
  • Page 29 Air suction grille with air filter Checking meatus Please consult the after-sales service worker of Haier Air Conditioner for the choosing and installation of suction inlet, suction duct, discharging outlet and discharging duct. Calculating the design drawing and outer static pressure, and choose the discharging duct with proper length and shape.
  • Page 30 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 The length difference among every duct is limited below 2:1. Reduce the length of duct as possible as can. Reduce the amount of bend as possible as can. Use heat insulation material to bind and seal the part connecting main unit and the flare part of air discharging duct.
  • Page 31 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5.2.2.6 The attentive matters in installation of air suction and discharging duct Recommend to use anti-frost and sound-absorbing Special air discharging outlet duct. (locally bought) The duct installation work should be finished Use screw bolt to fix before the fitment of ceiling.
  • Page 32 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 5.2.3 Cabinet indoor unit(HPU-42HF03)
  • Page 33 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 045 .. 5-10 1* 05- * .. 2. 5 045 .. 5-10 1* 4, 2 / 5 . -2-0+ 100 5-10...
  • Page 34 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 -2-0+ 100 5-10 1* 165 113 60-5 63+-0+ / 5,1 , 3+-0+ /1605 1* 5, 3 *3-+ 3 05...
  • Page 35 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 v-}{42,{ 6,2,/* KbgX= C_XVge\V j\e\aZ `hfg UX WbaX Ul dhT_\Y\XW cXefba1 QfX VbccXe j\eX ba_l/ g[X cTeT`XgXe bY VbaaXVg\aZ VTU_X \f F3:NK0D 7E 31:8`` P[X cbjXe VTU_X f[bh_W UX biXe 8E518`` / g[X cbjXe VTU_X \f fX_Y0cebi\WXW1...
  • Page 36 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Indoor & outdoor unit connection power cable length Approx Approx 1.5m pipe direction Left Rear Right Bottom...
  • Page 37: Parts And Functions

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 6. Parts and Functions 6.1 HBU-18CF03...
  • Page 38 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 6.2 HDU-42CF03/H...
  • Page 39 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 6.3 HPU-42HF03 NV\ Z_^WR^ T\VWWR Z[R\N^VZY [NYRW cdfeg HG@HCC IHMBJ DBAKBJ KEFBJ S\ZY^ [NYRW NV\ VYWR^ T\VWWR NV\ SVW^R\ >VY]VQR ^UR _YV^? ^Z[ PZ`R\ NV\ VYWR^ S\ZY^ [NYRW aV\VYT OZb PZ`R\ PZX[\R]]Z\>VY]VQR ZS _YV^?
  • Page 40: Remote Controller Functions

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 4.Operation MODE 7.Remote controller functions Used to select operation mode. 7.1 Remote controller YR-H71 Every time you press MODE button, operation mode changes according to following sequence: HEAT COOL AUTO 5.HEALTH Button Used to set health mode, if the unit has the negative ion function and oxygen bar function.
  • Page 41: Fan Button

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 18.FAN Button The distance between the remote controller and the receiver should be max 7m and there should be no obstacle between them. Used to select fan speed:LOW,MID,HIGH,AUTO. Do not throw the remote controller; prevent it from being 19.TIMER OFF Display...
  • Page 42 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Fan Operation 1.Unit start Press ON/OFF button to start your air conditioner. Previous operation status appears on LCD (except for TIMER, SLEEP, and SWING setting). 2.Select operating mode Press MODE button. At each press, operation mode...
  • Page 43: Temperature Setting

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 AUTO, COOL , HEAT and DRY Operation 1. Unit start Press ON/OFF button,unit starts. Previous operation status appears on LCD (except for TIMER, SLEEP and SWING setting) 2.Select operation mode Press MODE button. At each press, operation mode changes...
  • Page 44: Adjusting Air Flow Direction

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Adjusting air flow direction AUTO SWING AUTO SWING Press SWING button. Up and down airflow varies upwards When the automatic swing louver moves to the proper and downwards. Left and right airflow angle, press SWING button can fix the airflow direction.
  • Page 45: Sleep Function

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Sleep Function Before going to bed you can press down the SLEEP button and the air conditioner will run so as to make you sleep more comfortably. Before using this function, the clock must be set.
  • Page 46: Timer On/Off Function

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Timer ON/OFF Function Set clock correctly before starting TIMER operation 1.Unit start After unit start, select your desired operation mode (operation mode will be displayed on LCD) 2.TIMER mode selection Press TIMER button on the remote controller to change TIMER mode.
  • Page 47 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Timer ON-OFF Function Set clock correctly before starting TIMER operation 1.Unit start After unit start, select your desired operation mode (operation mode will be displayed on LCD) 2.TIMER mode selection Press TIMER button on the remote controller to change TIMER mode.
  • Page 48 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Filter Up/Down (Optional) After the air conditioner has operated for a certain period, dust has accumulated on the filter, and the filter up/down function can be used to clean it. 1.Whether unit starts or stops, continuously press FILTER...
  • Page 49 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 " High mode " Operation Outline of operation in "High Mode" This function is suitable when the set temperature must be reached in the shortest delay. The button "HIGH/SO", referred to this function, is effective in Cooling/Heating mode (not in Auto/Dry/Fan modes).
  • Page 50 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 " Soft mode " Operation Outline of operation in "Soft Mode" Operation in "Soft Mode", more silent, is suitable when noises should be reduced, e.g.. for reading or sleeping. The button "HIGH/SO", referred to this operation, is effective in Cooling/Heating mode (not in Auto/Dry/Fan modes).
  • Page 51 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Auto restart function setting TEMP SWING MODE SLEEP HEALTH FRESH CLOCK TIMER HIGH/SO FILTER LIGHT LOCK RESET CODE Setting method (to be applied for a necessary situation) : After the power failure compensation is set, if power failure suddenly occurs while the air conditioner is working, it will resume the previous working state when the power is supplied again.
  • Page 52 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 7.2 Wired controller RRNmx | z u o xw {x | x y | x t w v v~ RSNm xx u hj_` a\i mqdib o xw x m xx \onj n`hk c`\gnc...
  • Page 53 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 x wt | o x ^jjg | o x c`\n | | x N o x _ls | | zLt t w | wt v | t xN hj_` mqdib IQJ o |...
  • Page 54 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 vt x t |vt | z | xZ ]xy x | zL zx utv~ y ty x yt t xx t |z{ N ndh`l hj_` mqdib j x t | wx | ux w|...
  • Page 55 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 hj_` mqdib n`hk c`\gnc ^gj^f ndh`l mg``k adgn`l l`m`n ODPDQ jiOjaa ndh`l jiMjaa j x t | wx | ux w| t xw g^_N k x | w|vt | x {x u x xwL w|...
  • Page 56 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 i xZ ]xy x | z {| y v v~L {x xx y | ux w| wx xwN tu x m xx mqdib hj_` |z{ L uxy x z | z n`hk c`\gnc...
  • Page 57 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 \y x {x t M x t y x L |y x yt| x {| x {x t| v w| | ~| zL | x {x ~| z t x {x |xw tzt| N...
  • Page 58 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 x {x {xt { y | { {| y \y x x {x |z{ y {xt { u | x v x w| G GL mqdib hj_` xzt | x | zx x t...
  • Page 59 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 y | x y | x v k^] | y | x y | x x L ux vt xy wt tzx | N k xt x w | {x t tvv w| z...
  • Page 60 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 7.1 Remote controller YR-H71 dy {x | xw x t w | | {x x x xvx| x L x {x x x xvx| x l`MPQ t w {x x x slMcWQ xt | x {x x...
  • Page 61: Refrigerant Diagram

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 8. Refrigerant Diagram HBU-18CF03 NOTE£” FOR SOME COOLING ONLY TYPES,THERE ARE NO DASHED LINES AND PART IN DASHED FRAME...
  • Page 62 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H NOTE£” FOR SOME COOLING ONLY TYPES,THERE ARE NO DASHED LINES AND PART IN DASHED FRAME...
  • Page 63 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HPU-42HF03 NOTE£” FOR SOME COOLING ONLY TYPES,THERE ARE NO DASHED LINES AND PART IN DASHED FRAME...
  • Page 64: Electrical Control Functions

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 9. Electrical Control Functions 9.1 Control Features The brief introduction includes those for each item of various types of air conditioners and The brief introduction includes those for each item of various types of air conditioners and their electric control functions.
  • Page 65 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 (2) Auto Selection of Wind Speed In the following, Tr means room temperature while Ts means setting temperature. a. During cooling program conversion of wind speed from the low to high won’t work until the present speed has continued for 3 minutes while conversion from the high to low needs no time delay.
  • Page 66 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 blowing fan runs at setting wind speed. This working area is defined as area A. (2) Ts Tr Ts + 2 , the compressor and outdoor blowing fan run for 10 minutes then pause for 6 minutes, while indoor blowing fan runs at low wind speed.
  • Page 67 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 setting wind speed. (6) Afterheat blowing during heating program During heating program, the compressor will stop running (except overheat protection or frost removal) while the indoor blowing fan will firstly run for 50 seconds at low speed then stop.
  • Page 68 (12) Monitoring of remote network Through preset interface, the air conditioner is connected to remote control detector (made by Haier) with 2-core cables for wire communication, to execute instructions sent from computer or centralized controller via remote control detector and meanwhile send present running status and trouble information of the machine to remote control detector.
  • Page 69 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 9.2 Defrost operation flow chart Come to defrost Compressor Open outdoor fun Compressor Condition off or 55s? E-Heat off for 30s? compress Return Operation indoor fun motor Return 4-way value Turn off compressor...
  • Page 70: Diagnostic Information (Troubleshooting)

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 10. Diagnostic information (troubleshooting) 10.1 System failure If the refrigerant in the system cannot flow fluently or the airflow circles more slowly, please check due to the following procedures. Cooling: bad cooling if set temp. is proper change the set temp.
  • Page 71 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 10.2 Failure code The remote receiver, wired controller and indoor PCB indicator all can indicate the failure code. 10.2.1 Failure code list Power lamp flash times/LED on PCB failure description reasons treatment flash times Indoor ambient temp.
  • Page 72 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Diagnose and troubleshooting: 1) Sensor failure check if the wiring is correct according to reconnect wiring diagram if sensor is fixed Relocate well Is sensor short-circuit Replace sensor or open-circuit? Is sensor resistance...
  • Page 73 Commercial Air Conditioner Commercial Air Conditioner Model: HBU-18CF03 Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H HPU-42HF03 3) Low pressure abnormal If there is other failure, please check if the dip switch is correct.
  • Page 74: Electric Data

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 11. Electric data 11.1 Wiring diagram HBU-18CF03 WIRING DIAGRAM OF INDOOR UNIT 0010576948 CENTRAL RECEIVER TRANSFORMER FLOAT CONTROLLER INDOOR AMBIENT INDOOR TEMPERATURE FAN MOTOR CN4 CN3 CN21 CN22 SENSOR CN18 FUSE CN20 CAPACITOR T3.15A/250VAC...
  • Page 75 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H CIRCUIT DIAGRAM OF INDOOR UNIT 0010576945 FLOAT PIPE TEMP. SWITCH SENSOR WIRED CONTROLLER CN12 CN11 DETECTOR CN24 T3.15A/250VAC OUTDOOR LOW PRESSURE SWITCH CONTROL CN10 FUSE RELAY RELAY TRANSFORMER CAPACITOR FAN MOTOR NOTE: FOR THE COOLING CAPACITY 42000BTU/h ,THE FUSE ON PC BOARD IS T6.3A/250VAC .
  • Page 76 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HPU-42HF03 WIRING DIAGRAM OF INDOOR UNIT 0010576948 CENTRAL RECEIVER TRANSFORMER CONTROLLER FLOAT INDOOR AMBIENT INDOOR FAN MOTOR TEMPERATURE CN21 CN22 SENSOR BM1 BM2 CN18 FUSE CAPACITOR CN20 T3.15A/250VAC CN19 INDOOR PIPE CN6 CN10...
  • Page 77: Circuit Diagram

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 11.2 Circuit diagram HBU-18CF03 CHECK POWER TIM ER OUTPIPE COMP- LED PIPE ROOM SELECT1 SELECT2 ADDR- L ADDR- H STEPM OTOR...
  • Page 78 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H 4.7UF/50V...
  • Page 79 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HPU-42HF03 24C01A...
  • Page 80 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 11.3 Printed diagram HBU-18CF03 Port and definition CN1:external alarm input CN2:control port of float switch CN3:control port of low pressure switch CN4:central control port CN5:remote receiver panel CN6:outdoor deforst...
  • Page 81 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 CN7:time-shrink port CN9:output port of transformer CN10:swing motor port CN11:reserved port CN12:outdoor fan motor port CN13:compressor port CN14:control port of 4-way valve CN15:water pump port CN16:neutral wire port CN17:live wire port CN18:fan motor port CN19:neutral wire port...
  • Page 82 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HDU-42CF03/H...
  • Page 83 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Port and definition CN1: indoor coil temperature sensor CN2: connection port of detector CN3: output port of transformer CN4: swing port CN5: water pump port CN7: control port of outdoor compressor and fan motor...
  • Page 84 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 HPU-42HF03 Port and definition: CN1:control port of live wire of swing motor CN3:signal input port of ambient temp. sensor ,coil temp. sensor CN4:control port of 4-way valve(not available for cooling only type) CN5:primary side of transformer CN6:second side of transformer...
  • Page 85 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 CN24:low speed control port of indoor fan motor CN25:netural wire port of indoor fan motor CN26:netural wire port of swing motor CN27:control port of outdoor defrost sensor(not available for cooling only type) CN28:low pressure switch...
  • Page 86 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 11.2 Sensor characteristic Model Name Code Sub-part code characteristic Indoor ambient 001A3900159 R25=23KΩ±2.5% 001A3900003 temp. sensor B25/50=4200K±3% HBU-18CF03 Indoor coil temp. 001A3900006 R25=10KΩ±3% 001A3900004 sensor B25/50=3700K±3% Indoor coil temp. R25=10KΩ±3% 001A3800128 001A3900004 sensor B25/50=3700K±3%...
  • Page 87 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 R25=10KΩ±3% R25=10KΩ±3% B25/50=3700K±3% B25/50=3700K±3% T(℃) Rnom(KΩ) 18.43 4.93 -20℃ 90.79 17.61 1.85 85.72 16.83 4.58 1.79 80.96 16.09 4.42 1.73 76.51 15.38 4.26 1.68 72.33 14.71 4.11 1.63 68.41 14.08 3.97 1.58 64.73 13.48...
  • Page 88: Air Velocity Distribution

    Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 12. Air velocity distribution 1) HBU-18CF03 a. Cooling / Air Velocity Distribution Cooling Blowy angle:40 Air Velocity Distribution b. Cooling / Temperature Distribution Cooling Blowy angle:40 Temperature Distribution...
  • Page 89 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 2) HDU-CF03/H cooling air discharge angle 5 Air Velocity distribution cooling air discharge angle 5 Temperature distribution...
  • Page 90 Commercial Air Conditioner Model: HBU-18CF03 HDU-42CF03/H HPU-42HF03 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

This manual is also suitable for:

Hdu-42cf03Hpu-42hf03Hdu-42cf03/h