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Haier HCFU-18CF03 Service Manual

Commercial air conditioning
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Commercial Air Conditioning
SERVICE MANUAL
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-010-06REV.1
Model
HCFU-18CF03
HCFU-18HF03
HCFU-28CF03
HCFU-28HF03
Edition: 2006-07-21

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  Summary of Contents for Haier HCFU-18CF03

  • Page 1 Commercial Air Conditioning SERVICE MANUAL Model HCFU-18CF03 HCFU-18HF03 HCFU-28CF03 HCFU-28HF03 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-010-06REV.1...
  • Page 2: Table Of Contents

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 CONTENTS Contents………………………………………………………..2 1. Description of products & features………………………...3 2. Specification………………………………………………….5 3. Safety precaution…………………………………………...10 4. Net dimension of indoor and outdoor……………………..12 5. Installation instructions………..……………………………14 6. Parts and functions………………………………………….31 7. Remote controller functions………………………………..33 8. Refrigerant diagram………………………………………...57 9.
  • Page 3: Description Of Products & Features

    ”D” stands for duct, “P” stands for cabinet type, ”Q” stands for chiller system, "E" stands for ceiling concealed type, “U” stands for outdoor unit Haier 1.2 Brief Introduction for T1 T2 T3 working condition Climate type Type...
  • Page 4 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 1.4 Product features 1.4.1 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. Optional safety devices and much more precision control device a.
  • Page 5: Specification

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 2. SPECIFICATION item Model HCFU-18CF03 Function cooling heating 16500 ----- Capacity BTU/h Capacity 4.83 ----- Sensible heat ratio Total power input 2000 ----- Max. power input 2500 ----- EER or COP ----- Dehumidifying capacity 10 ³×m³/h...
  • Page 6 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 item Model HCFU-18HF03 Function cooling heating Capacity BTU/h 16500 18000 Capacity 4.83 5.275 Sensible heat ratio Total power input 2000 1800 Max. power input 2500 2400 2.93 EER or COP Dehumidifying capacity 10 ³×m³/h Power cable section 3G×2.5mm...
  • Page 7 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 item Model HCFU-28CF03 Function cooling heating 24000 ----- Capacity BTU/h ----- Capacity Sensible heat ratio Total power input 2800 ----- Max. power input 3400 ----- 2.54 ----- EER or COP Dehumidifying capacity 10 ³×m³/h Power cable section 3G×4.0mm...
  • Page 8 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 item Model HCFU-28HF03 heating cooling Function Function Capacity BTU/h 24000 26000 Capacity Sensible heat ratio Total power input 2850 2800 Max. power input 3500 3400 EER or COP 2.54 Dehumidifying capacity 10 ³×m³/h Power cable section 3G×4.0mm Signal cable...
  • Page 9 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: mounting-on-ceiling unit: outdoor unit: 1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right directions. 2.air outlet from top: the noise level is the average sound pressure level measured from front, back, left, right directions.
  • Page 10: Safety Precaution

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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. WARNING! Incorrect operations may result in severe consequences of death or serious injuries. CAUTION! Incorrect operations may result in injuries or machine damages;...
  • Page 11 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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.
  • Page 12: Net Dimension Of Indoor And Outdoor

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 4. Net dimension 4.1 HCFU-18 (mm) o|,v} sx}x{w qv}zx{ty o|,v} sx}x{w ix~*}xu+*x|{ k|yv...
  • Page 13 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 4.2 HCFU-28 o|,v} sx}x{w qv}zx{ty o|,v} sx}x{w ix~*}xu+*x|{ k|yv...
  • Page 14: Installation Instructions

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 5 Installation Instructions 5.1 Installation of indoor unit STANDARD PARTS The following installation parts are furnished. Use them as required. Accessory parts Qty. Remote controller Battery Wire clamp Heat insulation sheathing Screw cap Remote controller bracket Pipe connection requirement...
  • Page 15 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 (Fig. 4) (Fig. 5) 99cm Wall 24.5cm 50cm Wall bracket 10cm Side of set Indoor unit outdoor unit 6.5cm 7cm hole For series 14,18,24 when installing set to wall, install 3.5cm hole the accessory wall bracket at the position shown in Fig.5,and mount the set to it.
  • Page 16 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 1. DRILLING FOR PIPING Select piping and drain directions. For series 28,36,42,52.only rear side (Fig.11) (Fig. 11) Rear (Install the drain hose in the direction.) Right CAUTION Install the drain hose at the rear; it should not be installed on the top or right side. 2.
  • Page 17 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 (Fig. 15) Hex bolt 8 to 13mm Indoor unit (Fig. 16) Apply the indoor unit to the brackets.(Fig.16) Bracket Bolt Indoor unit Now, securely tighten the hex bolts in both sides. 5. INSTALL THE DRAIN HOSE Select whether the drain hose will be connected to the left or right side.(Fig.3) Insert the drain hose into the drain pan, then secure the drain hose with a nylon fastener.(Fig.6) Wrap the insulation (drain hose)around the drain hose connection.(Fig.7)
  • Page 18 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HOW TO CONNECT WIRING TO THE TERMINALS A. For solid core wiring (or F-cable)(Fig.19A) (1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 25mm of the exposed solid wire. (2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
  • Page 19 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 1. INDOOR UNIT SIDE (1) Remove the electric component box. (Fig. 21) (Fig. 22) Electric component box CAUTION Do not remove the screws. If the screws are removed, the electric component box will fall. Remove the four tapping screws.
  • Page 20 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 (4) Wiring (1) Remove the cord clamp. (2) Process the end of the connection cords to the dimensions. (3) Connect the end of the connection cord fully into theterminal block. (4) Fasten the connection cord with a cord clamp. (5) Fasten the end of the connection cord with the screw.
  • Page 21 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 MOUNT THE COVER PLATE AND THE INTAKE GRILL Note: The following installing procedure only for series 14,18,24 1.Mount the cover plate. (Right) (1) Cut a pipe exit hole in the right plate. This is only when the pipe exits from the right side. (This operation is not required when the protrusion is on the top or rear.) (Fig.
  • Page 22 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 E@B J^cdS\\SdZ_^ _W _edU__b e^Zd `y|~.| A@ GTTVcc_bZVc E`y|~.|E {/2 02/4zx4~/. /{ z,zx42~x 7~2z3 {2/- v. /0z.~.| zy|zN B@ OV\VTdZ_^ _W dYV `\STV _W Z^cdS\\SdZ_^ nz,zx4 4}z 0,vxz /{ ~.34v,,v4~/. 3v4~3{9~.| 4}z {/,,/7~.| x/.y~4~/.3 v.yL v4 4}z 3v-z 4~-zL /w4v~.
  • Page 23 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 C@ J^cdS\\SdZ_^ _W _edU__b e^Zd =A> J^cdS\\SdZ_^ a~8 4}z 5.~4 ~. v 02/0z2 7v9 vxx/2y~.| 4/ 4}z x/.y~4~/. /{ v 0,vxz 7}z2z ~4 ~3 ~.34v,,zy w9 2z{z22~.| 4/ 4}z {/,,/7~.| N HvI ^/.x2z4z {/5.yv4~/. HwI a/5.yv4~/.
  • Page 24 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 c^apMRX^aPS c^apMRXcaPS k/7z2 r~2~.| oz2-~.v, k/7z2 r~2~.| _~342~w54~/. c/,z D@ NVWbZXVbS^d `Z`Z^X SM7v9 34/0 6v,6z a,v2z x/..zx4~/. bv3 0~0z d.y//2 j54y//2 5.~4 5.~4 g~15~y 0~0z RM7v9 34/0 6v,6z...
  • Page 25 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 =B> MZ`Z^X cZiV g~15~y 0~0z VNSU8PNW-- c^apMQX^aPS c^apMQXcaPS bv3 0~0z QRNW8PNX-- YPKPNU g~15~y 0~0z YNUR8PNX-- c^apMRX^aPS c^apMRXcaPS QUNXX8QNP-- bv3 0~0z d.34v,, 4}z 2z-/6zy {,v2z .543 4/ 4}z 0~0z3 4/ wz x/..zx4zyL 4}z. {,v2z 4}z 0~0z3N =C>...
  • Page 26 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 51 9RY MRZLQJYPRVP UN[QWM \{4z2 {~.~3}~.| x/..zx4~/. /{ 2z{2~|z2v.4 0~0zL ~4 3}v,, 0z2{/2- v~2 4~|}4.z33 4z34N o}z v~2 4~|}4.z33 4z34 vy/043 .~42/|z. 4v.+ 4/ |~6z 02z3352z vxx/2y~.| 4/ 4}z 0~0z x/..zx4~/. -/yz v3 4}z {/,,/7~.| {~|52z 3}/7.N o}z |v3 v.y ,~15~y 6v,6z v2z v,, ~.
  • Page 27 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 VN k~0~.| v.y ~.y//2 5.~4 6vx55-~:~.| p3z 6vx55- 05-0 4/ 0z2{/2- 6vx55-~:~.|N d4 ~3 342~x4,9 {/2w~yyz. 4/ 53z 4}z 2z{2~|z2v.4 4/ 2z-/6z 4}z v~2 ~.3~yz 4}z 3934z-N \{4z2 v~2 4~|}4.z33 4z34 v.y y~3x}v2|~.| v,, 4}z .~42/|z.L x/..zx4 4}z 6vx55- 05-0 v3 4}z {/,,/7~.| {~|52z 3}/7.N g/7 02z3352z 0z~:/-z4z2 c~|} 02z3352z 0z~:/-z4z2...
  • Page 28 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 E@ H\VTdbZT gZbZ^X ojnmlmk _\ib`m ja ]j_dgt diepmt jm _`\oc opmi jaa `g`^omd^ kjr`m \o ^dm^pdo ]m`\f`m jm kjr`m njpm^` ]`ajm` h\fdib \it `g`^omd^ ^jii`^odjinN bmjpi_ ^jii`^odjin hpno ]` ^jhkg`o`_ ]`ajm` h\fdib gdi` qjgo\b` ^jii`^odjinN =A>...
  • Page 29 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 c^apMQX^aPS c^apMQXcaPS QHgI RHiI QHgI RHiI P_ J^U__b Q^Zd P_ J^U__b Q^Zd a dbNR a dbNQ c^apMRX^aPS kjr`m npkkgtZ P_ J^U__b Q^Zd QkcLRRPMRSPq;LUPc: adbNS c^apMRXcaPS P_ J^U__b Q^Zd kjr`m npkkgtZ QkcLRRPMRSPq;LUPc: adbNT...
  • Page 30 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 r\midib _j ijo ^jii`^o oc` i`pom\g rdm` kc\n`N dio`m^jii`^odib rdm`n hpno ]` rdm`_ \^^jm_dib oj adbNQ adbNR adbNSNadbNTNdi^jmm`^o rdmdib ^\pn` `lpdkh`io _\h\b`N =C> RZbZ^X `b_TVUebV QI mz-/6z 3z4 3x2z73 /. 4}z 3~yz wz{/2z 4v+~.| /{{ 4}z {2/.4 0v.z, 4/7v2y 4}z y~2zx4~/.
  • Page 31: Parts And Functions

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 6. Parts and Functions 6.1 HCFU-18 POWER OPER TIMER COMP EMER Fig.2 Fig.1 Indoor Unit 1 Operating Control Panel (Fig.2) 2 Emergency switch 3 Remote Control Signal Receiver 4 Power Indicator Lamp (Red) Fig.1 5 OPERATION Indicator Lamp (Green) 6 TIMER Indicator Lamp (Yellow) 7 Compressor Run Lamp (Green)
  • Page 32 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 6.2 HCFU-28 EMER POWER OPER TIMER COMP 1 Operating Control Panel 2 Emergency switch 3 Power Indicator Lamp 4 OPERATION Indicator Lamp 5 TIMER Indicator Lamp 6 Compressor Lamp 7 Filter 8 Front panel EYa Y][Uc EYa ^dc[Uc F^\_aUbb^a...
  • Page 33: Remote Controller Functions

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 7.Remote controller functions Oial\l`_ ^jinljgg`l [U=NCA 93Og\iXk`fe MODE Tj\[ kf j\c\Zk fg\iXk`fe df[\3 Em\ip k`d\ pfl gi\jj MODE Ylkkfe1 fg\iXk`fe df[\ Z_Xe^\j XZZfi[`e^ kf ]fccfn`e^ j\hl\eZ\? ATSO HEAS COOL :3HEALSH Blkkfe Tj\[ kf j\k _\Xck_ df[\1 `] k_\ le`k _Xj k_\ e\^Xk`m\ `fe ]leZk`fe Xe[ fop^\e YXi ]leZk`fe3 SEMP ;3CLOCK Blkkfe...
  • Page 34 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 S_\ [`jkXeZ\ Y\kn\\e k_\ i\dfk\ Zfekifcc\i Xe[ 6=3FAN Blkkfe k_\ i\Z\`m\i j_flc[ Y\ dXo <d Xe[ k_\i\ j_flc[ Y\ Tj\[ kf j\c\Zk ]Xe jg\\[?LOU1MID1HIGH1ATSO3 ef fYjkXZc\ Y\kn\\e k_\d3 6>3SIMEQ OFF D`jgcXp Df efk k_ifn k_\ i\dfk\ Zfekifcc\i@ gi\m\ek `k 753CLOCK D`jgcXp ]ifd Y\`e^ [XdX^\[3 763FILSEQ D`jgcXp...
  • Page 35 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Nfk\? Ik `j i\Zfdd\e[\[ k_Xk k_\ YXkk\i`\j Y\ i\dfm\[ ]ifd k_\ ZfdgXikd\ek `] k_\ i\dfk\ Zfekifcc\i `j efk lj\[ ]fi Xe \ok\e[\[ g\i`f[3 S_\ i\dfk\ Zfekifcc\i `j gif^iXdd\[ ]fi XlkfdXk`Z k\jk f] fg\iXk`fe df[\ X]k\i k_\ YXkk\i`\j Xi\ i\gcXZ\[3 U_\e k_\ k\jk `j Zfe[lZk\[1 Xcc `Zfej n`cc Xgg\Xi fe k_\ jZi\\e Xe[ k_\e [`jXgg\Xi `] k_\ YXkk\i`\j Xi\ gifg\icp ]`kk\[3 L\i Sk`l\ndji...
  • Page 36 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 S_\e j\c\Zk ATSO ile fi j\c\Zk COOL fg\iXk`fe fi j\c\Zk DQW fg\iXk`fe fi j\c\Zk HEAS fg\iXk`fe 83S\dg\iXkli\ j\kk`e^ Pi\jj SEMP Ylkkfe3 Em\ip k`d\ k_\ Ylkkfe `j gi\jj\[1 k\dg3 j\kk`e^ `eZi\Xj\j 6 C@ `] k_\ Ylkkfe `j b\gk gi\jj\[1 k\dg3 j\kk`e^ n`cc `eZi\Xj\ hl`Zbcp3 Em\ip k`d\ k_\ Ylkkfe `j gi\jj\[1 k\dg3 j\kk`e^ [\Zi\Xj\j 6 C1 `] k_\ Ylkkfe `j b\gk gi\jj\[1 k\dg3 j\kk`e^ n`cc [\Zi\Xj\...
  • Page 37 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Ie COOL fi DQW df[\1 [f efk c\Xm\ k_\ cflm\i `e [fnenXi[ gfj`k`fe ]fi X cfe^ k`d\1 Xj k_\ nXk\i mXgfi Zcfj\ kf k_\ ^i`cc\ dXp Zfe[\ej\ Xe[ nXk\i dXp [ifg ]ifd k_\ X`i Zfe[`k`fe\i3 Pc\Xj\ ZXi\]lccp j\k k\dg\iXkli\ n_\e Z_`c[i\e1 fc[ fi n\Xb g\fgc\ lj\ k_\ X`i Zfe[`k`fe\i3 Ie ZXj\ f] ^i\Xk _ld`[`kp1 I] k_\ m\ik`ZXc ]cXgj Xi\ Zfdgc\k\cp klie\[...
  • Page 38 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 RLEEP QTN RSOPR RLEEP QTN BEGINR RESSING SEMP RHTS DOUN XYflk ; _ij 6 _ij [\Zi\Xj\ 7 C 6 _ij [\Zi\Xj\ 7 C `eZi\Xj\ 6 C XYflk ; _ij `eZi\Xj\ 6 C 6 _ij 8 _ij `eZi\Xj\ 6C RHTS DOUN...
  • Page 39 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 H`ekj? A]k\i i\gcXZ`e^ YXkk\i`\j fi `] X gfn\i ]X`cli\ fZZlij1 SIMEQ j\kk`e^ dljk Y\ i\j\k3 Q\dfk\ Zfekifcc\i _Xj d\dfip ]leZk`fe3 U_\e pfl lj\ SIMEQ df[\ e\ok k`d\1 aljk gi\jj RES Ylkkfe X]k\i df[\ j\c\Zk`fe `] k`d\i j\kk`e^ `j k_\ jXd\ Xj k_\ gi\m`flj fe\3 SEMP Nfk\?
  • Page 40 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 <3CXe\c SIMEQ df[\ Jljk gi\jj SIMEQ Ylkkfe j\m\iXc k`d\j lek`c SIMEQ df[\ [`jXgg\Xij3 AZZfi[`e^ kf k_\ k`d\ j\kk`e^ j\hl\eZ\ f] SIMEQ ON Xe[ SIMEQ OFF1 \`k_\i jkXik2jkfgj fi jkfgj2jkXik ZXe Y\ i\Xc`q\[3 I] k_\ k`d\ j\kk`e^ f] SIMEQ ON `j k_\ jXd\ Xj SIMEQ OFF1 SIMEQ ON2OFF ]leZk`fe ZXeefk Y\ j\k3 Ldgn`l Xk?Jjqi -Oecp ]fi ;55/;55 gXe\c f] j`e^c\ le`k: A]k\i k_\ X`i Zfe[`k`fe\i _Xj fg\iXk\[ ]fi X Z\ikX`e g\i`f[1 [ljk _Xj...
  • Page 41 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Tl`mm nc` NOMN?VS ]onnji ij^` S_\ `e[`ZXk`fe Xgg\Xij fe k_\ [`jgcXp f] k_\ i\dfk\ Zfekifcc\i Xe[ fg\iXk`fe `e +H`^_ Mf[\+ jkXikj3 SEMP S_\ ATSO ]Xe jg\\[ `j XlkfdXk`ZXccp j\k Xe[ k_\ Zfii\jgfe[`e^ `e[`ZXk`fe `j Xcjf [`jgcXp\[3 RUING MODE RLEEP...
  • Page 42 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Gonj l`mn\ln aoi^ndji m`nndib A]k\i k_\ gfn\i ]X`cli\ Zfdg\ejXk`fe `j j\k1 `] gfn\i ]X`cli\ jl[[\ecp fZZlij n_`c\ k_\ X`i Zfe[`k`fe\i `j nfib`e^1 `k n`cc i\jld\ k_\ gi\m`flj nfib`e^ jkXk\ n_\e k_\ gfn\i `j jlggc`\[ X^X`e3 V`nndib Q`ncj_E U_\e k_\ i\dfk\ Zfekifcc\i `j fe -\oZcl[`e^ k`d\i df[\ Xe[ ]Xe df[\.1gi\jj k_\ +Rc\\g+ Ylkkfe fe k_\ i\dfk\ Zfekifcc\i 65 k`d\j n`k_`e :j\Zfe[j1 Xe[ X]k\i k_\ Ylqq\i i`e^j 9 k`d\j1 k_\ X`i Zfe[`k`fe\i n`cc...
  • Page 43 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Oial\l`_ ^jinljgg`l [U=NCA \i_ l`hjn` l`^`dp`l UK=@AE I] k_\ le`k `j n`i\[ kpg\ Xe[ `k `j n`k_flk k_\ i\dfk\ i\Z\`m\i1 pfl ZXe lj\ k_\ i\dfk\ i\Z\`m\i QE256 Xe[ k_\ i\dfk\ Zfekifcc\i WQ2H<6 kf i\Xc`q\ k_\ i\dfk\ ]leZk`fe3 S_\ `ejkXccXk`fe f] i\dfk\ i\Z\`m\i Xe[ ljX^\ ]leZk`fe Xi\ Xj ]fccfnj? S_\ i`^_k ]`^li\ `j X i\dfk\ Zfekifcc\i1 n_`Z_ ZXe Y\ lj\[ fe j\i`\j i\dfk\ Zfekifc le`kj Xe[ k_\ dXkZ_`e^ i\dfk\ Zfekifc i\Z\`m\i...
  • Page 44 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Wired controller YR-E12 ;=34 50< 24<A?0: ;=34 50< @D8<6 =>4?0A8=< 0BA= 0BA= @A0<31F 7867 50< =<:F >?4-740A 2==: 345?=@A A4;> 740:A7 58:A4? 740A 740:A7 27429 @D8<6 2:=29 ;0<B0: 34;0<3 B<8A <=. 24<.033. ?==; A4;>. @F@.033.
  • Page 45 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 [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] central control mode [OPERATION]...
  • Page 46 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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 [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]...
  • Page 47 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 TIMER ON, press [TIMER]. [TIMER][ON] will be constant 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 48 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 CENTRAL control function 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 49 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Preset Outdoor total capacity Actual value, decimal In check mode, press [CHECK] to quit the check mode, and go into normal running mode. How to change the function switches? Type State of Function description switch Changeover Wired...
  • Page 50 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 There is no lock function only in the wired controller. But when it is connected with a central controller, if the central controller is set to “central”, the buttons in the wired controller will be invalid, or the buttons will be valid.
  • Page 51 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Address on Indoor unit SW2-3 SW2-2 SW2-1 SW1-4 SW1-3 SW1-2 SW1-1 central address controller...
  • Page 52 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03...
  • Page 53 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03...
  • Page 54 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03...
  • Page 55 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Electrical functions of wired controller: 1.Function difference between master wired controller and slave one: Contrastive items Master wired controller Slave wired controller Function All of functions Only with below functions: ON/OFF, MODE, FAN SPEED, SET TEMP., SWING 2.
  • Page 56 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 connected with indoor unit is called master one, the other is called slave one. Master wired controller and indoor unit; master and slave wired controllers are all connected through 3 pieces of polar wire. 3.
  • Page 57: Refrigerant Diagram

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 8. Refrigerant Diagram HCFU-18/28CF03...
  • Page 58 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HCFU-18HF03...
  • Page 59 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HCFU-28HF03...
  • Page 60: Electrical Control Functions

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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 61 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 (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 62 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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. This working area is defined as area B.
  • Page 63 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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 64 (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 65 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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 Return outdoor fun compressor Compressor...
  • Page 66: Diagnostic Information (Troubleshooting)

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 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 67 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 10.2 Failure code The remote receiver, wired controller and indoor PCB indicator all can indicate the failure code. Failure code with wired controller YR-E12: Failure central Failure description Reason remote code control, type, flash wired failure code times...
  • Page 68 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 10.3 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 Replace sensor acceptable? Is DC voltage between...
  • Page 69 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 3) Low pressure abnormal...
  • Page 70: Electrical Data

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 11. Electric data 11.1 Wiring diagram HCFU-18CF03 HCFU-18HF03...
  • Page 71 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HCFU-28CF03 HCFU-28HF03 0010577269 CIRCUIT DIAGRAM OF INDOOR UNIT W:WHITE B:BLACK R:RED Y:YELLOW TRANS. REMOTE REMOTE OR:ORANGE BL:BLUE CONTROLLER RECEIVER BR:BROWN GR:GRAY CENTRALIZED Y/G:YELLOW/GREEN CAP.:FAN MOTOR CAPACITOR TRANS.:TRANSFORMER CN12 CN16 CN13 OUTDOOR CN11 PRESSURE CN15 SWITCH CONTROL UP-DN FLOAT...
  • Page 72 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 11.2 Circuit diagram and printed diagram HCFU-18CF03...
  • Page 73 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03...
  • Page 74 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Port Function 0010400020 cooling only Chip TMP87PH46N 1CA2 Primary side of transformer Without sequence RTB-1.5-2P Second side of transformer Without sequence B3B-XH Sensor B4B-XH 1 2-TM 3 4-EX Outdoor unit wire B2P3-VH 1 3-N OF Swing motor B5B-XH 1-12VDC 2~5-ABCD Swing motor B5B-XH...
  • Page 75 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HCFU-18HF03...
  • Page 76 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03...
  • Page 77 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Port Function 0010400019 heat pump Chip TMP87PH46N 1CA2 Primary side of transformer Without sequence RTB-1.5-2P Second side of transformer Without sequence B3B-XH Sensor B4B-XH 1 2-TM 3 4-EX Outdoor unit wire B4P7-VH 1 3 5 7-N OF V QZ Swing motor B5B-XH 1-12VDC 2~5-ABCD Swing motor B5B-XH...
  • Page 78 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 HCFU-28 0010451167 PCB information circuit diagram...
  • Page 79 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 0010451167 PCB information characters on board (horizontal)
  • Page 80 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 0010451167 characters on board vertical...
  • Page 81 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Condition for the PCB data: 1.Working ambient temperature: 10 70 , relative humidity:30% 95% 2.Preserved ambient temperature: 20 relative humidity 30% 95% 3.Power supply:220VAC 50/60Hz voltage range:160V 250V 4.Precise of temperature control: 1 0010451167 PCB information – port and definition connect to external power supply, live line: L (220VAC) connect to external power supply, neutral line: N (0VAC) P3 4 5 6...
  • Page 82 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 lamp 0VDC,6. signal output of power lamp 0VDC, 7. signal output of water pump running lamp 0VDC CN14 control external load, auto elevating function 1. signal of door switch close, 2. output of elevating direction control 0VDC, 3. output of elevating power control 0VDC, 4. power supply 12VDC CN15 input signal, detecting water level of float switch 1-3 short circuit is normal, cut off shows...
  • Page 83 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 0010451167 PCB information – function selection ON is 1, OFF is 0 The standard condition for PCB in factory SW1 4 bits are OFF SW2 4 bits are OFF SW3 4 bits are ON SW4 2 bits are ON SW5 4 bits are ON SW1-SW2: used for indoor unit to set unit address from 1 to 16’...
  • Page 84 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 0010451167 PCB information- control type Control type selection between remote and wired: select by dip switch J1, SW3-1 1 means remote control 0means wired control . For remote control type, please use remote controller, and a remote receiver is equipped with indoor unit. Door card control: controls ON/OFF, the start up setting will comply with last time request memorized according to condition memorize function.
  • Page 85 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 11.3 Sensor characteristic Model Name Code characteristic Indoor ambient 001A3900005 R25=23K ±2.5% HCFU-18CF03 temp. sensor B25/50=4200K±3% HCFU-18HF03 Indoor coil 001A3900006 R25=10K ±3% temp. sensor B25/50=3700K±3% Indoor coil R25=10K ±3% 001A3900006 HCFU-28CF03 temp. sensor B25/50=3700K±3% HCFU-28HF03 ambient temp.
  • Page 86 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 R25=10K ±3% R25=10K ±3% B25/50=3700K±3% B25/50=3700K±3% T( ) Rnom(K ) 18.43 4.93 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 87: Noise Curves

    Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 12 Noise curves 12. 1 HCFU-18CF03 sound pressure level DB sound pressure level DB...
  • Page 88 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 12.2 HCFU-18HF03 sound pressure level DB sound pressure level DB...
  • Page 89 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 12.3 HCFU-28CF03 sound pressure level DB sound pressure level DB...
  • Page 90 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 12.4 HCFU-28HF03 sound pressure level DB sound pressure level DB...
  • Page 91 Commercial Air Conditioner Model: HCFU-18/28CF03 HCFU-18/28HF03 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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