Heat Controller DMH24DB-1 manual

Wall Mounted Multi-Split System Air Conditioning/Heat Pump DMC24DB-1 DMH24DB-1 Befor e servicing the unit, r ead the “safety pr ecautions” in this manual. Only for authorized service personnel. HEA T CONTR OLLER, INC.[...]

2 Multi type Air Conditioner Multi type Air Conditioner Ser vice Manual T ABLE OF CONTENTS Combination table ....................................................................................................................................... 3 Safety Precautions ....................................................................................[...]

Ser vice Manual 3 Operation 1 Unit 2 Unit Combination of Indoor Unit(kBtu/h) Cooling Each Capacity Unit-A Unit-B UNIT-A(Btu/h) UNIT-B(Btu/h) Total Btu/h kW UNIT-A(Btu/h) UNIT-B(Btu/h) Btu/h kW Total Capacity Each Capacity Total Capacity Heating 12 12 12 12 24 12000 12000 - 12000 12000 24000 12000 24000 3516 7033 3516 7033 12000 12000 - 12000 Notes [...]

4 Multi type Air Conditioner Saf ety Precautions Safety Precautions T o pre v ent injur y to the user or other people and proper ty damage, the f ollowing instructions must be f ollow ed. ■ Incorrect operation due to ignoring instruction will cause har m or damage. The seriousness is classified by the f ollowing indications . ■ Meanings of symb[...]

Ser vice Manual 5 Saf ety Precautions Do not install, remove, or re- install the unit by y ourself (customer). • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing the product. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the con- denser and evapora[...]

6 Multi type Air Conditioner Saf ety Precautions Do not open the inlet grill of the product during operation. (Do not touch the elec- trostatic filter , if the unit is so equipped.) • There is risk of physical injury, electric shock, or product failure. When the product is soaked (flooded or submerged), contact an A uthorized Service Center . •[...]

Ser vice Manual 7 Saf ety Precautions When the product is not to be used f or a long time , disconnect the power b y turning off the breaker . • There is risk of product damage or failure, or unintend- ed operation. T ake care to ensure that nobody could step on or fall onto the outdoor unit. • This could result in personal injury and product d[...]

8 Multi type Air Conditioner Saf ety Precautions Do not expose the skin direct- ly to cool air f or long periods of time. (Don't sit in the draft.) • This could harm to your health. Do not use the product f or special purposes, such as preserving foods, w orks of ar t, etc. It is a consumer air conditioner , not a precision refrigeration sys[...]

Ser vice Manual 9 Saf ety Precautions Do not rechar ge or disassemble the batteries. Do not dispose of batteries in a fire. • They may burn or explode. If the liquid from the batteries gets onto y our skin or clothes, wash it well with c lean water . Do not use the remote if the batteries have leaked. • The chemicals in batteries could cause bu[...]

10 Multi type Air Conditioner Dimensions Dimensions Indoor Unit Split T ype Indoor Installation plate D H W W mm(in) 895(35.2) H mm(in) 282(11.1) D mm(in) 165(6.5) Model Dimension Split T ype(SE) 12 kBtu/h[...]

Ser vice Manual 11 Outdoor Unit W D L1 L2 L4 L3 H L7 L5 L6 W mm(in) 870(34.3) H mm(in) 800(31.5) D mm(in) 320(12.6) L1 mm(in) 370(14.6) L2 mm(in) 25(1.0) L3 mm(in) 775(30.5) L4 mm(in) 25(1.0) L5 mm(in) 546(21.5) L6 mm(in) 160(6.3) L7 mm(in) 160(6.3) UE1 24kBtu/h MODEL DIM Dimensions[...]

12 Multi type Air Conditioner Product Specifications Pr oduct Specifications DMC24DB-1 23,600/24,000 11,800/12,000 208/230V -- 2.4(0.085) 1.2(0.042) at 230V 1Ø, 208/230V, 60Hz Indoor – 9.4(331.9) Outdoor 53(1871.8) Indoor – 36/32/29 at 230V Outdoor 54 2,390/2,390 1,420/1,420 -- 10.1/10.1 6.3/6.3 208/230V -- 9.9/10.1 8.3/8.5 -- Indoor 895 x 282[...]

Ser vice Manual 13 Product Specifications DMH24DB-1 23,600/24,000 11,800/12,000 208/230V 23,600/24,000 11,800/12,000 2.4(0.085) 1.2(0.042) at 230V 1Ø, 208/230V, 60Hz Indoor – 9.4(331.9) Outdoor 53 Indoor – 36/32/29 at 230V Outdoor 54 2,390/2,390 1,420/1,420 2,440/2,440 1,620/1,620 10.1/10.1 6.3/6.3 208/230V 9.8/9.8 7.2/7.2 9.9/10.1 8.3/8.5 2.8[...]

14 Multi type Air Conditioner Installation Installation Type "A" screw and plastic anchor Type "B" screw Remote Control Holder Installation plate Figure Figure Name Screw driver Electric Drill Measuring Tape, Knife Hole Core Drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer, Level Flarin[...]

Ser vice Manual 15 Installation Indoor unit 1. Do not hav e any heat or steam near the unit. 2. Select a place where there are no obstacles in front of the unit. 3. Make sure that condensation dr ainage can be conv e- niently routed aw a y . 4. Do not install near a doorwa y . 5. Ensure the spaces indicated by arro ws from the wall, ceiling, f ence[...]

16 Multi type Air Conditioner Installation Multi Piping T ype Piping length and elev ation 24k 30m(100ft) 15m(50ft) 3m(10ft) 7.5m(25ft) 7.5m(25ft) Capacity(Btu/h) Max total length of all pipes (A+B) Max length of each pipe (A/B) Min length of each pipe (A/B) Max Ele v ation between each indoor unit and out- door unit (h1) Max ele v ation between in[...]

Ser vice Manual 17 Installation The wall you select should be strong and solid enough to prevent vibration 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts. • Mount the installation plate horizontally by aligning the centerline using a level. 2. Measure the wall [...]

18 Multi type Air Conditioner Flaring Work and Connection of Piping Flaring w ork Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable. 1. Use the piping kit accessory or the pipes purchased locally. 2. Measure the distance between the indoor and the outd[...]

Ser vice Manual 19 Flaring Work and Connection of Piping Check 1. Compare the flared work with the figure by. 2. If a flared section is defective, cut it off and do flaring work again. Indoor 1. Prepare the indoor unit's piping and drain hose for installation through the wall. 2. Remove the plastic tubing retainer(see the illustration by) and [...]

20 Multi type Air Conditioner Flaring Work and Connection of Piping 4. Indoor unit installation Hook the indoor unit onto the upper portion of the installa- tion plate.(Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure that the hooks are properly seated on the installa- tion plate by movi[...]

Ser vice Manual 21 Flaring Work and Connection of Piping 1. Route the indoor tubing and the drain hose to the required piping hole position. 2. Insert the piping, drain hose, and the connecting cable into the piping hole. 3. Insert the connecting cable into the indoor unit. • Don't connect the cable to the indoor unit. • Make a small loop [...]

22 Multi type Air Conditioner Wrap the insulation material around the connecting por- tion. 1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap. 2. Wrap the area which accommodates the rear piping hous- ing section with vinyl tape. 3. Bundle[...]

Ser vice Manual 23 Flaring Work and Connection of Piping Remove the battery cover from the remote con- troller. • Slide the cover according to the arrow direction. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. • Be sure that both batteries are new. Re-attach the cover. • Slide it back into position. REMO T[...]

24 Multi type Air Conditioner Outdoor Align the center of the pipings and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. Liquid side piping T orque wrench [...]

Ser vice Manual 25 Flaring Work and Connection of Piping Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.) The earth wire shou[...]

26 Multi type Air Conditioner Connect the cable to the Outdoor unit. 1. Remove the cover control from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as the following. 2. Secure the cable onto the control board with the holder (clamper). 3. Refix the cover control to the original position with t[...]

Ser vice Manual 27 Connecting the Cable betw een Indoor Unit and Outdoor Unit (1) Remove two-caps on the conduit panel. (2) Make a hole appropriate for the passage of connection cable through on cap by tool. (for low voltage line) (3) Pass the connecting cable through the hole. (4) Properly connect the cable on the terminal block. (5) Fix the conne[...]

28 Multi type Air Conditioner Connect the cable to the indoor unit CA UTION: Pro vide a cir cuit breaker between power sour ce and the unit as shown below . Air Conditioner Circuit Breaker Use a circuit breaker or time delay fuse . Main power source Model 24k 1 Ø , 230/208V P er max. fuse size on unit name plate P ower source Fuse or breaker Capac[...]

Ser vice Manual 29 Checking the Dr ainage, F or ming the Pipings and Long Pipe Setting Chec king the drainage T o check the draina ge . 1. Pour a glass of water on the evaporator. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. Drain piping 1. The drain hose should point downward [...]

30 Multi type Air Conditioner Checking the Dr ainage, F or ming the Pipings and Long Pipe Setting Forming the piping Form the piping by wrapping the con- necting portion of the indoor unit with insulation material and secure it with two kinds of vin yl tape . • If you want to connect an additional drain hose, the end of the drain outlet should be[...]

Ser vice Manual 31 Air Purging and Ev acuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. Water may lead to corr[...]

32 Multi type Air Conditioner Checking the Dr ainage, F or ming the Pipings and Long Pipe Setting 1. Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varie[...]

Ser vice Manual 33 Charging ■ Each outdoor unit is factory charged (nameplate charge) for the evaporator as well as a 7.5m(25ft) line set for each indoor line. Any time total line set is used either shorter or longer then the nominal 22.5m(75ft: for tri-zone) line set length the refrigerant charge has to be adjusted. ■ Whether the line set is m[...]

34 Multi type Air Conditioner 1. Check that all tubing and wiring have been properly con- nected. 2. Check that the gas and liquid side service valves are fully open. 1) Prepare remote controller Remove the battery cover by pulling it according to the arrow direction. Insert new batteries making sure that the (+) and ( – ) of battery are installe[...]

Ser vice Manual 35 Operation 1. MAIN UNIT FUNCTION • DISPLA Y Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator • On while in sleep timer mode, off when sleep timer cancel or appliance operation pause Tim[...]