Samsung 3759 (4) Refrigerant flow rates control

I

9

2) PWM (Pulse Width Modulation) valve

PWM valve is the valve to take away the fixed scroll by lifting up through the difference of pressure after the digital

scroll compress being connected to the outlet and inlet of suction. Therefore, the capacity of compressor is controlled

automatically according to the operation status such as loading when the valve is closed or unloading when the valve

is opened. PWM means the control of ON/OFF signal to the valve for loading/unloading.

(4) Refrigerant flow rates control

Refrigerant flow rates through the electronic expansion valve are controlled by the 2 factors which are the

temperature difference between inlet and outlet of evaporator and the difference between room and set temperature.

a. An electronic expansion valve optimally distributes refrigerant flow rates to each room and the fuzzy logic enables

comfortable cooling more precisely; refer to the figure below.

b. The air conditioner senses the temperature difference between inlet and outlet of evaporator, plus the temperature

difference between room and set temperature. And it calculates the superheat and the room temperature status,

then adjusts refrigerant flow rates after deciding the opening steps of valve.

①

Falling room temperature

②

Rising room temperature

③

Open electronic expansion valve

④

Closed electronic expansion valve

1

0.5

0

-0.5

-1

①②

③

④

Relationship between PWM valve and loading/unloading

PWM valve open PWM valve close

Unloading

Period (Cycle Time, T)

Loading

compression

non-compression

(rotating in vain)

DVM E-D/B(chapter1)-E<03759 3/21/02 6:55 PM Page 9

Contents

Main 1. DVM system series 2. DVM line-up 7. S-Net II Overview 1. Remote controller 3. Transmitter 5. Assigning address IIVV Outdoor unit VV Installation I Overview 1-1. What is DVM? 1-2. Features of DVM (1) Customized air conditioner (2) Comparison of DVM with conventional air conditioners (3) Variable compressor 1) Principle of the digital compressor < 2 Compressor > < 1 Compressor > 2) PWM (Pulse Width Modulation) valve (4) Refrigerant flow rates control Relationship between PWM valve and loading/unloading (5) Long & single piping system (6) Convenient centralized control (7) Easy installation (8) Minimizing operation costs DVMDivision Page Zone control Test condition Opening ratio Capacity (W/W) (W) SEER 1-3. DVM vs VAV (1) Excellent energy efficiency (2) DVM test condition (3) VAV test condition Zone control Sample #1 Sample #2 Sample #3 Sample #4 Zone control No. of duct opening Zone control No . o f d u c t o p ening 2-1. Numbering system of model (1) Indoor unit and outdoor unit (Conventional model) DM A-180 0 AVM K H 100 B RVM H 060 B Page Page Page 2-2. Combination (1) Outdoor unit 1) Cooling only Design Power supply Model Capacity(HP) Design Max. connectible indoor units Total capacity of indoor units (kW, ISO standard) Super cooler 2) Heat pump Design Power supply Model Capacity(HP) Refrigerant Page 1. System line-up (2) Indoor unit The design and capacity of indoor unit are subject to change without notice. (18000Btu/h) 6.0kW (13500Btu/h) 5.2kW Design Power supply 7.0kW (24000Btu/h) 7.2kW The design and capacity of indoor unit are subject to change without notice. (36000Btu/h) 12.8kW (28000Btu/h) 10.5kW Control System I I 1-1. Wireless remote controller (1) 1-way / 4-way cassette / Wall-mounted / Floor standing / Ceiling type I I (2) Duct type 1-2. Wired remote controller (1) 1-way / 4-way cassette / Wall-mounted / Floor standing / Ceiling type I I (2) Duct type 1-3. Centralized controller 1-4. Function controller 2. Receiver & display unit (Duct type) I I 2-1. Concealed type (2) Heat pump (1) Cooling only 2. Receiver & display unit (Duct type) I I 2-2. Standard type (2) Heat pump (1) Cooling only Page I I 4-1. Wireless remote controller I I 4-2. Wired remote controller I I (3) Setting up option switches I I (4) Example of installing wired remote controller 4-3. Centralized controller (3) Transmitter installation (2) Wiring diagram Each outdoor unit connected to the same centralized controller must have its own transmitter. I I (4) Assigning address K1 K2 K3 K4 (5) Setting up option switches Individual control ; I I K1 K2 K3 K4 K1 K2 K3 K4 I I (6) Example of centralized controller & wired remote controller I I If there is installed the wired remote controller together, refer to the table below. Wired remote controller Centralized controller Switch No. 1234 Meaning 4-4. Function controller I I (3) Wiring diagram 4-5. Receiver & display unit - Concealed type I I 4-6. Receiver & display unit - Standard type I I 4-7. Transmitter I I (3) Wiring diagram (4) Transmitter installation (5) Assigning address 5. Assigning address I I 5-1. Indoor unit 5. Assigning address I I 5-2. Outdoor unit Switch No. I I 6-1. PCB option code input method (example : 021E31142285) Page I I Page I I 6-2. Option code SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Type Model I I SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Type Model 7. S-Net I I Page Page III Indoor unit 1-1. 1-Way cassette type 3 (3) Features of the 1-way cassette type AVMKH035EA0 AVMKC040CA0 AVMKH032CA0 AVMKC035EA0 AVMKH026EA0 AVMKC032CA0 1) Long-life air filter 1-2. 4-Way cassette type AVMCC052C(E)A0 AVMCH052C(E)A0 AVMCC070EA0 AVMCH072CA0 AVMCC105C(E)A0 AVMCH070EA0 AVMCC072CA0 AVMCH105C(E)A0 (3) Features of 4-way cassette type 1) Fan speed adjustment 2) Versatile airflow 3) Sub duct 4) Efficient cooling 1-3. Duct type (2) High external static pressure (1) Economic installation External static pressure Fan speed (3) Features of Duct type 1) Application methods 2) Way of air intake & Inserting air filter 1-4. Wall-mounted type (1) BIO-components (2) Features of wall-mounted type 2) Look at how well these filters perform 3) Specially designed for easy installation 4) Easily detachable and washable front grille 5) One-touch hanger plate 1-5. Floor standing type (1) Features of floor standing type AVMPH082EA0 AVMPC083CA0 AVMPH072CA0 AVMPC082EA0 AVMPH070EA0 AVMPC072CA0 11 5) Design Page (3) Features of ceiling type 1) Long life filter with antibacterial treatment 2) Drain water lift-up mechanism (Optional) 3) Double auto swing 2-1. 1-way cassette type Page 2-2. 4-way cassette type Page 2-3. Duct type (Low silhouette) Page 2-4. Duct type (Built-in) Page Page Page 2-5. Duct type (High pressure) Page 2-6. Wall-mounted type Page Page Page 2-7. Floor standing type Page 2-8. Ceiling type Page 3-1. 1-way cassette type 3-2. 4-way cassette type 3-3. Duct type (Low silhouette) 3-4. Duct type (Built-in) 3-5. Duct type (High pressure) 3-6. Wall-mounted type 3-7. Floor standing type 3-8. Ceiling type 4-1. 50Hz Page Page Page Page Page 4-2. 60Hz Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 5-9. Wireless remote controller / Receiver Page Page Page Page Page Page Page 5-10. Wired remote controller Page Page (Cooling only & heat pump) 6-1. Refrigerant system diagram 6-2. Main parts status (1) Temperature sensor (EIS, Evaporator Inlet Sensor) (2) Temperature sensor (EOS, Evaporator Outlet Sensor) Page Page Page Page Page Page Page Page Page Page Page Page 86 8-1. Overall 2m 2m 1-way cassette type 4-way cassette type Duct type(Low silhoutte) 8-2. Octave band level DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 87 (1) 1-way cassette type DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 88 (2) 4-way cassette type DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 89 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 90 (3) Duct type (Low silhouette) DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 91 (4) Duct type (Built-in) DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 92 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 93 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 94 105 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 95 (5) Duct type (High pressure) 128 (6) Wall-mounted type DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 96 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 97 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 98 060 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 99 (7) Floor standing type 082/083 DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 100 (8) Ceiling type DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 101 9-1. 1-way cassette type (1) AVMKH035 9-2. 4-way cassette type (1) AVMCH070 (2) AVMCH105 9-3. Wall-mounted type (1) AVMWH035 (2) AVMWH070 9-4. Ceiling type (1) AVMFH070 10. Fan specifications DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 108 10-1. Duct type (Low silhoutte) 10-2. Duct type (Built-in) Fan Speed (CMM) (3) DVM E-D/B(chapter3-3)-E<03759 3/21/02 7:38 PM Page 109 (4) (5) 10. Fan specifications 10-3. Duct type (High pressure) 11. Panel 11-1. 1-way cassette type (1) Design (2) Status Language 11. Panel Language 11-2. 4-way cassette type (2) Status (1) Design 12. Electronic expansion valve kit 12-1. Design 12-2. Status depending on the combination Item MEV-14 MEV-18 13. Options Item Mandatory items Optional items Page IV Outdoor unit 1. Unit selection (with cooling load) 2 1-1. Indoor unit selection capacity index 1-2. Outdoor unit selection 1-4. Example for unit selection with cooling load (1) Given condition (2) Indoor unit selection (3) Outdoor unit selection 1) Assume the indoor unit and outdoor unit combination as follow. 2-1. 50Hz Page 2-2. 60Hz 3-1. Outdoor unit Page Page Page Item Code Name 3-2. Super cooler Item Code Name 4-1. 50Hz 1) 060 Page 2) 100 Page 1) 060 19 2) 100 TC : Total capacity, PI : Power input 4-2. 60Hz 1) 050 Page 2) 060 Page 3) 072 Page 4) 100 Page 1) 050 2) 060 TC : Total capacity, PI : Power input 3) 100 TC : Total capacity, PI : Power input Page Page Page Page 6-1. Cooling only 050/060/072 Note Supper cooler : For Middle East only (1) super cooler Page (3) Main parts status 6-2. Heat pump 050/060 (1) Page (3) Main parts status Page Page Page Page Page 8. Consideration for outdoor unit selection Page 9. Noise level DVM E-D/B(chapter4-2)-E<03759 3/21/02 7:40 PM Page 48 DVM E-D/B(chapter4-2)-E<03759 3/21/02 7:40 PM Page 49 10. Options V Installation 1-1. Preparation for installation (1) General (2) Moving the outdoor unit by wire rope 1-2. Deciding on where to install the air conditioner. (1) Indoor unit 1-3. Space requirements for the air conditioner (1) Indoor unit 4) Duct type (Built-in) 5) Duct type (High pressure) 6) Wall-mounted type Page 1) If there is no obstacle around the outdoor unit... DVM E-D/B(chapter5)-E<03759 3/21/02 7:40 PM Page 7 Front Air inlet S1 S2 1-4. Accessories (1) 1-way cassette type (2) 4-way cassette type (3) Duct type (Low silhouette) (4) Duct type (Built-in) (5) Duct type (High pressure) (6) Wall-mounted type Page 1-5. Installation (1) Indoor unit (Example; 4-way cassette type) The anchor bolt must be 20mm or higher from the base surface. 2-1. 1-way cassette type Page 2-2. 4-way cassette type 2-3. Duct type (Built-in) Page 3. Connecting the indoor unit refrigerant pipe Page 4. Drain hose installation (Example;4-way cassette type) 1) 3) Wrap the drain hose with the insulation drain as shown in figure and secure it. Testing the drainage 5. Drain pump installation-optional (Example;Low-silhouette duct type) (1) 5-2. Accessories SW03 6-1. Overall system configuration (example) shall be installed in the integrated manner. 1 Phase ELB application (Using the distributor kit) 3 Phase and single phase ELB application MCCB 6-2. Cable specification for outdoor unit 6-3. Connection cord specification 6-4. Wiring diagram Indoor unit 1 Indoor unit 2 Indoor unit 3 6-5. Connection cord wiring diagram 6-6. Power wiring and communication wiring configuration 6-7. Communication cable connection (1) Correct connection (2) Typical wiring error Page Page Page Page Page 7. Piping and refnet joint selection Max allowable length Allowable difference height Allowable length after branching 7-2. Piping selection capacity Items Outdoor unit 7. Piping and refnet joint selection (2) Other refnet joint selection method 7-3. Refnet joint selection (1) Selection method of first refnet joint from the outdoor unit 8. Charge/recovery of refrigerant 8-1. Refrigerant charging Outdoor unit indoor unit 21 8 8. Charge/recovery of refrigerant 8-2. Additional refrigerant amount calculation method Pipe diameter (mm) Additional amount of refrigerant(g/m) (3) Additional refrigerant amount calculation method (4) Example of additional refrigerant amount calculation Page 9. Testing operation Page 10. Cautions for refrigerant leaks 10-1. Introduction * Dangerous concentration 41 10-2. Procedure for checking dangerous (1) Calculate the amount of refrigerant(kg) charged to each system separately. (2) Calculate the smallest room volume(m Indoor unit Indoor unit Opening between rooms Partition 10. Cautions for refrigerant leaks (3) Calculate the refrigerant density using the results of the calculations in steps 1 and 2 above. (4) Dealing with situations where the result exceeds the dangerous concentration level.