Page 2 - Contents
Contents Cautions ........................................................................................... Introduction to Spare Parts................................................................ Maintenance................................................................................... Tro...
Page 3 - Cautions; Disposal of the old air conditioner; Safety Instructions and Warnings
Cautions 1 Disposal of the old air conditioner Before disposing an old air conditioner that goes out of use, please make sure it's inoperative and safe. Unplug the air conditioner in order to avoid the risk of child entrapment. It must be noticed that air conditioner system contains refrigerants, wh...
Page 4 - Specifications; The machine is adaptive in following
All the cables shall have got the European authentication certificate. 5. The breaker of the air conditioner should be all-pole switch; and the distance between its two contacts should be no less 3mm. Such means for disconnection must be incorporation in the fixed wiring. 6. The waste battery shall ...
Page 5 - Below are listed three kinds of Safety Cautions and Suggestions.; Safety cautions
WARNING! Carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of Safety Cautions and Suggestions. WARNING!CAUTION! Incorrect operations may result in injuries or machine damages; in some cases maycause serious consequences. Incorrect...
Page 7 - installation please be sure of the following conditions.; Please call dealer to install the air-conditioner.; It easily cause electrical shock without circuit; Incorrect pipe use may cause water leaking.; Installation
WARNING ! CAUTION ! Please ask the dealer or specialist to install, never try by the users themselves. After the installation please be sure of the following conditions. Incorrect installation may cause water leaking, shock and fire hazard. Please call dealer to install the air-conditioner. Air-cond...
Page 8 - Introduction to Spare Parts; (adjust air outlet direction; Air ourlet blade
Introduction to Spare Parts 6 (adjust air outlet direction by the air direction adjusting button on remote controller) Air ourlet blade Suction grillAir filter (located in the suction grill)
Page 9 - Install air filter; Maintenance; NOTE
5. Close inlet grill 4. Install air filter Put filter into protruding parts at the top of the inlet grill. [Clean outlet and shell] CAUTION! Don't use gasoline, benzene, dilutant, polishing powder, or liquid inseticide. CAUTION! 3. Clean (A) Remove dust with vacuum filter. Maintenance [Clean air fil...
Page 10 - Seasonal Reserve
8 NOTE 1.The inner part of indoor unit must be cleaned. Consult dealer, because clean must be done by technician. 2.In cooling operation, discharging system discharge water in room. Seasonal Reserve Operate the unit with FAN mode on a fair day for about half a day to dry the inside of the unit well....
Page 11 - The followings are not malfunction; Trouble Shooting
The followings are not malfunction Hua Hua Trouble Shooting Water flowing sound is heard When the air conditoner is started, when the compressor starts or stops during operation or when the air conditioner is stopped,it sometimes sounds "Bi- Bi-"or "Godo-Godo". It is the flowing soun...
Page 13 - When Trouble Happens; Insufficient cooling or heating; Door or window left opened ?; Insufficient cooling
When Trouble Happens Insufficient cooling or heating The operation controller adjusted as required Air filter too dirty ? Horizontal swing louver upward ? (in HEAT mode) Any obstacle exists at the air inlet or outlet? Door or window left opened ? Insufficient cooling Any other heat sources in the ro...
Page 14 - Failure code list
When Trouble Happens Power lamp flash times/LED on PCB flash times failure description Reasons E0 10 Fault in drain system Float switch is open E1 1 Indoor ambient temp. sensor failure Sensor broken down or short circuit for more than 2m continuously E2 2 Indoor pipe temp. sensor failure Sensor brok...
Page 15 - Using Directions
Customer Need-to-know Customer Need-to-know Please install the air conditioner according to the requirements specified in this manual to ensure the air conditioner work well.Be careful not to scratch the surface of the case during moving the air conditioner.Please keep the installation manual for fu...
Page 16 - Installation Procedure
A B C D E F Installation tools Standard accessories 1. Screw driver2. Hacksaw3. Drill with a diameter of 60mm4. Inner hexagon spanner,shifting spanner5. Spanner (14, 17, 19, 24, 27mm)6. Pipe cutter7. Pipe expander8. Knife9. Pincers10. Leakage detector or soapy water11. Band tape12. Scraper13. Refrig...
Page 17 - Meanings of Warning and Cautions:; Don't fail to show customers how to operate unit.; Cautions for the installation personnel; Serious injury or even death might happen,if it is not observed.
Unit shall be grounded. But grounding shall not be connected to gas pipe water pipe, telephone line. Poor grounding will cause electric shock. Be sure to install a leakage breaker to avoid electric shock. Arrange water drainage according to this Manual. Cover pipe with insulation materials in case d...
Page 18 - Installation space; Before installation
(2) Ceiling height Indoor unit can be installed on ceiling of 2.5-3m in height. (Refer to Field setting and Installation Manual of ornament panel.) (3) Install suspending bolt. Check if the installation place is strong enough to hold weight. Take necessary measures in case it is not safe. (Distance ...
Page 19 - Preparation for the installation; (1) Position of ceiling opening between unit and suspending bolt.
17 3 Preparation for the installation (1) Position of ceiling opening between unit and suspending bolt. Unit:mm Note: Dimension of ceiling opening marked with * can be aslarge as 910mm, but the matching part of ceiling with ornament panel shall be over 20mm. HBU-28CH03 HBU-28HH03 HBU-36HH03 HBU-42CH...
Page 20 - In the case of ceiling already exists; Installation of indoor unit; In the case of new ceiling
< After installation on the ceiling > (3) Adjust unit to its right position. (Refer to preparation for the installation-(1)) (4) Check unit's horizontal level. Watert pump and flating switch is installed inside indoor unit, check four corners of the unit for its level using horizontal comparto...
Page 21 - Refrigerant piping
( As for outdoor piping, please refer to installation Manual of outdoor unit. ) Outdoor is precharged with refrigerant. Be sure to see the Fig.1, when connecting and removing piping from unit. For the size of the flare nut, please refer to Table 1. Apply refrigerant oil at both inside and outside of...
Page 22 - Installation of water drainage pipe
(1) Install water drainage pipe Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethylent; size: 25mm; O.D:32mm) Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening. If downward slope can't be made, take other measures to lift it...
Page 23 - Method of water charging; R S T N
(2) Check if water drainage is smooth after installation. Charge, through air outlet or inspecting hole, 1200ccd water to see water drainage. (Just take HBU-28HH03 for example. For HBU-42CH03, HBU-42HI03, HBU-48CH03 there is no inspecting hole). After wiring Remove cover of control box, short connec...
Page 24 - Cautions for the installation; WARNING; Wiring
All supplied parts. materials and wiring operation must in appliance with local code and regulations.Use copper wire only. When make wiring, please refer to wiring diagram also.All wiring work must be done by qualified electricians. A circuit breaker must be installed, which can cut power supply to ...