ZYMBO AATT Ventilarredo RX-200/EXC Service Manual

Fan coils + radiator 2 in 1

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ZYMBO AATT

Fan Coils + Radiator

2 in 1

Ventilarredo Service Manual – English

Service Manual

MODEL:

Ventilarredo RX-200/EXC

Ventilarredo RX-400/EXC

Ventilarredo RX-200/ECO

Ventilarredo RX-400/ECO

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Summary of Contents for ZYMBO AATT Ventilarredo RX-200/EXC

Page 1 ZYMBO AATT Service Manual MODEL: Ventilarredo RX-200/EXC Ventilarredo RX-400/EXC Ventilarredo RX-200/ECO Ventilarredo RX-400/ECO Fan Coils + Radiator 2 in 1 Ventilarredo Service Manual – English Pag. 1...
Page 2: Table Of Contents
ZYMBO AATT Index CERTIFICATION………………………...……………………………..…………………….….3 OVERALL DIMENSION……………………………………………………..………….………7 3. EXPLOSION VIEW………………………...…………………………….…………….…….….8 4. RATED TECHNICAL DATA….………………………………………………..………….…38 5. PERFORMANCE GRAPH………………………………………………………………….…39 6. NOISE TEST………………………………………………………………………………….…45 7. FULL PCB CONTROL SPECIFICATION……………………………………………………46 8. EASY PCB CONTROL SPECIFICATION.………………………………………………...…89 Ventilarredo Service Manual – English Pag. 2...
Page 3: Certification
ZYMBO AATT 1. CERTIFICATION 1.1 CE EMC Ventilarredo Service Manual – English Pag. 3...
Page 4 ZYMBO AATT 1.2 CE LVD Ventilarredo Service Manual – English Pag. 4...
Page 5 ZYMBO AATT 1.3 ROHS Ventilarredo Service Manual – English Pag. 5...
Page 6 ZYMBO AATT Ventilarredo Service Manual – English Pag. 6...
Page 7: Overall Dimension
ZYMBO AATT 2. OVERALL DIMENSION Model A ( mm ) B ( mm ) RX-200/EXC,ECO RX-400/EXC,ECO Ventilarredo Service Manual – English Pag. 7...
Page 8: Explosion View
ZYMBO AATT 3. EXPLOSION VIEW 3.1 Mini exclusive unit explosion view Ventilarredo Service Manual – English Pag. 8...
Page 9 ZYMBO AATT Ventilarredo Service Manual – English Pag. 9...
Page 10 ZYMBO AATT Ventilarredo Service Manual – English Pag. 10...
Page 11 ZYMBO AATT 3.2 Med exclusive unit explosion view Ventilarredo Service Manual – English Pag. 11...
Page 12 ZYMBO AATT Ventilarredo Service Manual – English Pag. 12...
Page 13 ZYMBO AATT Ventilarredo Service Manual – English Pag. 13...
Page 14 ZYMBO AATT 3.3 Min ECO unit explosion view Ventilarredo Service Manual – English Pag. 14...
Page 15 ZYMBO AATT Ventilarredo Service Manual – English Pag. 15...
Page 16 ZYMBO AATT Ventilarredo Service Manual – English Pag. 16...
Page 17 ZYMBO AATT 3.4 Med ECO unit explosion view Ventilarredo Service Manual – English Pag. 17...
Page 18 ZYMBO AATT Ventilarredo Service Manual – English Pag. 18...
Page 19 ZYMBO AATT Ventilarredo Service Manual – English Pag. 19...
Page 20 ZYMBO AATT 3.5 Two pipes box kit (no valve) explosion view Ventilarredo Service Manual – English Pag. 20...
Page 21 ZYMBO AATT Ventilarredo Service Manual – English Pag. 21...
Page 22 ZYMBO AATT Ventilarredo Service Manual – English Pag. 22...
Page 23 ZYMBO AATT 3.6 Two pipes box kit (ON/OFF valve) explosion view Ventilarredo Service Manual – English Pag. 23...
Page 24 ZYMBO AATT Ventilarredo Service Manual – English Pag. 24...
Page 25 ZYMBO AATT Ventilarredo Service Manual – English Pag. 25...
Page 26 ZYMBO AATT 3.7 Two pipes box kit (3-Way bypass valve) explosion view Ventilarredo Service Manual – English Pag. 26...
Page 27 ZYMBO AATT Ventilarredo Service Manual – English Pag. 27...
Page 28 ZYMBO AATT Ventilarredo Service Manual – English Pag. 28...
Page 29 ZYMBO AATT 3.8 Four pipes box kit (3-Way bypass valve) explosion view Ventilarredo Service Manual – English Pag. 29...
Page 30 ZYMBO AATT Ventilarredo Service Manual – English Pag. 30...
Page 31 ZYMBO AATT Ventilarredo Service Manual – English Pag. 31...
Page 32 ZYMBO AATT 3.9 Water tank kit explosion view (optional accessory) Ventilarredo Service Manual – English Pag. 32...
Page 33 ZYMBO AATT Ventilarredo Service Manual – English Pag. 33...
Page 34 ZYMBO AATT Ventilarredo Service Manual – English Pag. 34...
Page 35 ZYMBO AATT 3.10 Feet kit explosion view (optional accessory) Ventilarredo Service Manual – English Pag. 35...
Page 36 ZYMBO AATT Ventilarredo Service Manual – English Pag. 36...
Page 37 ZYMBO AATT Ventilarredo Service Manual – English Pag. 37...
Page 38: Rated Technical Data
ZYMBO AATT 4. RATED TECHNICAL DATA Model RX-200/EXC,ECO RX-400/EXC,ECO Number of fan blowers Single Dual 2169 3585 7-12℃ Cooling capacity(max) 16-22℃ 2498 3763 50℃ 4237 6528 70-60℃ Heating capacity(max) 4765 7357 75-65℃ 2023 3136 45-40℃ 1418 35-30℃ Air flow m3/h...
Page 39: Performance Graph
ZYMBO AATT 5. PERFORMANCE GRAPH 5.1 Total Cooling Performance Ventilarredo Service Manual – English Pag. 39...
Page 40 ZYMBO AATT 5.2 RX-200/EXC Cooling Performance 5.3 RX-400/EXC Cooling Performance Ventilarredo Service Manual – English Pag. 40...
Page 41 ZYMBO AATT 5.4 RX-200/EXC Cooling capacity with different water temperature 5.5 RX-400/EXC Cooling capacity with different water temperature Ventilarredo Service Manual – English Pag. 41...
Page 42 ZYMBO AATT 5.6 RX-200/EXC Water side pressure drop 5.7 RX-400/EXC Water side pressure drop Ventilarredo Service Manual – English Pag. 42...
Page 43 ZYMBO AATT 5.8 RX-400/EXC Heating capacity with different water temperature 5.9 RX-400/EXC Heating capacity with different water temperature Ventilarredo Service Manual – English Pag. 43...
Page 44 ZYMBO AATT 5.10 RX-200/EXC Static heating capacity 5.11 RX-400/EXC Static heating capacity Ventilarredo Service Manual – English Pag. 44...
Page 45: Noise Test
ZYMBO AATT 6. NOISE TEST Ventilarredo noise test Background noise during test ---30dB RX-400/EXC Exclusive (850RPM) RX-400/EXC Exclusive (650RPM) speed SPL (dB) SWL (dB) Fan Speed speed SPL (dB) SWL (dB) Fan Speed 50.1 56.3 852rpm 42.8 49.0 652rpm 47.3 53.5...
Page 46: Full Pcb Control Specification
ZYMBO AATT 7. FULL PCB CONTROL SPECIFICATION 7.8 PCB PICTURES AND WIRING SCHEME 7.1.1 Main PCB Note : Dimension and fixing hole must be respected to avoid conflict with PCB plastic box . Ventilarredo Service Manual – English Pag. 46...
Page 47 ZYMBO AATT Main PCB wiring connection scheme Ventilarredo Service Manual – English Pag. 47...
Page 48 ZYMBO AATT 7.1.2 Connection PCB Note : On plastic support where is fixed connection PCB will be reported a label to avoid installer mistake during wiring connection . Note: We need 4 DIP switches, 1. 2pipes/4pipes selection 2. With/without valve 3. 1pc/2pcs motor 4. RJ net setting For motor setting, we should fix it in ZYMBO factory.
Page 49 ZYMBO AATT Connection PCB wiring connection scheme Note : To connection PCB must be connect : 1. Power supply : L-N-GND 2. Valve 1 3. Valve 2 4. Water Pump 5. Saturn wired wall pad 6. humidistat sensor Kit 7. Window contact 8.
Page 50 ZYMBO AATT 7.1.3 Command on board PCB LCD back light display Room temp sensor Red LED Note : Dimension and fixing hole must be respected to avoid conflict with PCB plastic box Ventilarredo Service Manual – English Pag. 50...
Page 51 ZYMBO AATT Graphic display 41 x 31 mm blue back light Legenda : RT : room temperature SET : Set temperature °C : Celsius temperature °F : Fahrenheit temperature %: Humidifity Fan : Fan speed ( 6 speeds ) Static : No fan seed...
Page 52 ZYMBO AATT 7.1.4 AC Motor drawing specification 7.9 ABBREVIATIONS AND DEFINITION OF INPUT&OUTPUT PORTS 7.2.1 Abbreviations definition Ts = Setting temperature Tr = Room air temperature Ti1 = Water Inlet coils temperature MTV1 = Chilled water motorized valve (On/Off) MTV2 = Hot water motorized valve (On/Off)
Page 53 ZYMBO AATT 7.2.2 MODBUS ID setting Master and slave address setting by command on board When unit is in standby mode, pressing both “MODE” and “FAN UP ” buttons on command on board, and keep 3 seconds, after long beep from buzzer, unit would come into ID address setting mode.
Page 54 ZYMBO AATT 7.2.3 DIP switches setting DIP switch setting: 1 for ON, 0 for OFF. System setting 2 pipes system 1(ON) 4 pipes system MTV(motorized valve) setting [applicable to 2 pipes system only, 4 pipes system is fixed with motorized valve]...
Page 55 ZYMBO AATT PR 2: Auto Mode PR2: Auto mode like below : Default configuration is symbol on = Auto mode is on and machine work with specific program for each type of configuration settled before , with and without valve , 2 pipes or 4 pipes .
Page 56 ZYMBO AATT PR 6 = Anti-cold air setting in heating mode PR6 is hot water temperature setting for anti-cold air function during heating mode, default value is 36 if °C is settled and display. Or default value is 97 if °F is settled and display.
Page 57 ZYMBO AATT PR 10 = NTC compensation in heating mode PR10: Need to set NTC compensation in heating mode. Default compensation is -1, LCD display -1. Press Temp up or down button to change this value conforming to below range: -4-+4.
Page 58 ZYMBO AATT Below is default PR setting: PR No. PR Setting Default condition Mode setting-Cooling&Heating Cooling&Heating, LCD display cH /cooling / heating setting Yes, LCD display Auto Mode setting No, LCD display “no” Alarm with or without buzzer Celsius, LCD display “℃”...
Page 59 ZYMBO AATT 7.2.5 Output and Input definition Code 2-Pipe 4-Pipe Room Sensor . Machine can use three room sensors . First option is fixed at Saturn wall pad. Second option is room sensor on main board. Third option is room...
Page 60 ZYMBO AATT Command on Main PCB board/Wired wall Command on board  On main PCB, socket CN1 is connected with command on board. CN1,  Saturn wall pad TX1/RX1 like right image, Wall pad Connection PCB screw socket on the connection Window contact For Window contact normally open .
Page 61 ZYMBO AATT PG motor feedback Total 2 sets, could select 1 or 2 signal Main PCB PG1-1/ PG2-1 PG1-1 PG2-1 Power supply to the PCB Main PCB Phase and all the loads connected to the voltage outputs. Neutral Power Power supply to the PCB...
Page 62 ZYMBO AATT Cold water free Max length 30 m. If used contact. to supply a load: max Connection PCB length 5m, 5A Note: When the machine is AUX2 working alone, this contact switch On HP or chiller in cooling mode .
Page 63 ZYMBO AATT 7.10 CONTROL SPECIFICATION 7.3.1 Air conditioner ON/OFF There are different ways to turn the unit on or off: 1) By the ON/OFF button on the command on board , or Saturn wired wall pad, or remote control if wired wall pad have IR sensor on board or trough building automation system.
Page 64 ZYMBO AATT 7.3.2 Power on setting When the power-on signal is received by the air conditioner, the Mode, Fan Speed, setting temperature and Timer ON/OFF weekly program will be the same as the last power off. 7.3.3 Mater-slave unit function The control PCB can be set either as a master unit or slave unit.
Page 65 ZYMBO AATT Master-slave configuration: Master unit: MOD BUS ID address is 01. Master will beep twice after confirming receipt of commands from wired wall pad or beep once from command on board. Each master can command up to 31 slave units.
Page 66 ZYMBO AATT For the first and last slave units DIP 1 SW3 should be set with ON(1) position, like below solution. RS485 termination setting Other than below 1(ON) First and last unit on RS485 communication bus Solution 2: With 1,2,3,4 ……64 data logger x 32 machines each Master-slave communication method：...
Page 67 ZYMBO AATT 7.11 CONTROL FUNCTION 7.11.1 Two-Pipes system without motorized valve 7.4.1.1 Cool mode When unit is selected with heat only mode(PR1 setting), cool mode would be invalid. 1) AUX1(Hot water free contact) always off. 2) If Tr(Room air temperature) >= Ts(Setting temperature)+1 ºC , cool operation is activated, AUX2(Cold water free contact) is on.
Page 68 ZYMBO AATT Low temperature protection of indoor coil 1) If Ti1(Chilled water coil temperature exchanger temperature) ≦ 2 ºC for 2 minutes, AUX2 (Cold water free contact) is off. Indoor fan runs at Max speed. 2) Above point is necessary to supply max warm coming from room air to water inside exchanger to avoid water can freeze and broken pipes exchanger.
Page 69 ZYMBO AATT Static operation in heat mode 1) AUX2(Cold water free contact) and always off. 2) If Tr(Room air temperature) <= Ts(Setting temperature) ﹣ 1 ºC, heat operation is activated, AUX1(Hot water free contact) is turned on. Indoor fan stop 3) If Tr(Room air temperature) >Ts(Setting temperature), heat operation is terminated, AUX1(Hot water...
Page 70 ZYMBO AATT 7.4.1.5 Auto mode This function is study to obtain maximum comfort for occupant people , for this reason our priority is to have : 1) Auto mode is selectable only from master unit or wired wall pad connected with master unit. If selected Auto mode from master unit, slave units would not change with other mode.
Page 71 ZYMBO AATT 5) Indoor fan speed can be adjusted with 6 speeds + Auto when no humidistat kit connected, or RH is <70% with humidistat kit connected. 6) If RH is >=70% with humidistat kit connected, indoor fan would work with 3 speeds + Auto (3 speed is the min speed).
Page 72 ZYMBO AATT Pre-heat 1) AUX2(Cold water free contact) is always off. 2) If Ti1(Chilled water coil temperature)<36 ºC [or depend from PR 06 setting], AUX1(Hot water free contact) is on while indoor fan remains off. If Til could not reach 36 ºC [or depend from PR 06 setting ]for 40 minutes(or PR12 setting), LCD would display error code: E5.
Page 73 ZYMBO AATT 3) If 16 ºC < =Tr(Room air temperature) < 25 ºC, MTV1(Chilled water motorized valve) will be on , after 90 second also AUX2(Cold water free contact) will be ON for 10 minutes, after both will be OFF for 12 minutes.
Page 74 ZYMBO AATT 11) If Tr(Room air temperature) < Ts(Setting temperature)-2 ºC, heat operation is activated, AUX1(hot water free contact) is on after 90 second, and Unit will work with Pre-heat function. 12) When the master and all slave units reach set point, master unit would check setting temperature and room temperature again, and work with next working mode.
Page 75 ZYMBO AATT 3) If Ti1(Chilled water coil temperature) ≧ 5ºC for 2 minutes, MTV1(Chilled water motorized valve) and AUX2(Cold water free contact) are turned on. Indoor fun runs at set speed, no alarm code. 7.4.3.2 Fan mode 1) Indoor fan runs at the set speed while MTV1(Chilled water motorized valve), MTV2(Hot water motorized valve), AUX1(Hot water free contact) and AUX2(Cold water free contact) are turned off.
Page 76 ZYMBO AATT 4) If indoor coil temperature sensor is damaged, the protection mode will become obsolete and the unit will work as the Pre-heat and Post-heat set times. Static operation in heat mde 1) AUX2(Cold water free contact) and always off.
Page 77 ZYMBO AATT 7.4.3.5 Auto mode This function is study to obtain maximum comfort for occupant people , for this reason our priority is to have : 1) Auto mode is selectable from wired wall pad or command on board. 2) Temperature set point must be selectable from user, range is 5-30°C. If PR setting is activated, range is same as PR setting.
Page 78 ZYMBO AATT The cool mode sleep profile is: Set temperature Ts+2 c 0 Ts+1.0 Ts+0.5 Hour Sleep off Sleep on The heat mode sleep profile is: Set temperature t eep v n Sleep off Ho u r Ts-0.5 Ts-1.0 Ts-2.0...
Page 79 ZYMBO AATT Fan speed: ST+2 ST+3 ST+5 Tr(℃） 2) After 30 seconds the fan speed is modulated according to the difference between the room temperature and the set temperature. 3) In heat mode, the auto fan speed will operate as according to the following diagram: Fan speed: Tr(℃）...
Page 80 ZYMBO AATT 7.10 ERROR INDICATION 1) When faulty slave unit is detected, Master unit display area shows the faulty unit address, time area shows the error code and wall pad backlight changes to red color. Should there be multiple units having problems, addresses and error codes will be shown one after another.
Page 81 ZYMBO AATT 7.12 SENSOR RESISTANCE R-T CONVERSION TABLE 10KΩ±1% R25: B25/85: 3977±1% Rmin Rnom Rmax Rmin Rnom Rmax (KΩ) (KΩ) (KΩ) (KΩ) (KΩ) (KΩ) (℃) (℃) 182.7 191.8 26.11 26.9 27.71 163.4 171.5 179.9 24.85 25.59 26.34 153.6 161.1 168.9 23.65...
Page 82 ZYMBO AATT 4.067 4.186 4.307 1.089 1.135 1.183 3.911 4.027 4.144 1.055 1.146 3.761 3.874 3.989 1.021 1.065 1.111 3.618 3.728 3.84 0.9891 1.032 1.077 3.481 3.588 3.697 0.9582 1.044 3.35 3.454 3.561 0.9284 0.9697 1.012 3.225 3.326 3.43 0.8998 0.9401...
Page 83 ZYMBO AATT 7.13 SATURN WIRED WALL-PAD 2.13.1 Wall-Pad Display Fan speed display Temperature display area Operation display Display set or room temperature fan 3 fan 5 fan 1 Day display area Display day of week fan 4 fan 6 fan 2...
Page 84 ZYMBO AATT Wall Pad Operation 1) Clock display and setting System has an accurate internal real time clock used for time indication and timer ON/OFF function. TIME Normally, real time clock display area indicates internal time clock which can be set by TIME button.
Page 85 ZYMBO AATT SLEEP Press button to activate or deactivate sleep setting. Sleep is valid in cool or heat mode only. 6) Temperature setting Press to enter into temperature setting mode, temperature display area blinks the current set temperature. Press the above button to adjust the set temperature.
Page 86 ZYMBO AATT code and backlight change to red color. Should there be multiple units having problems, they will be shown one after another. Error code definition: Error Error code Return air sensor faulty Indoor coil sensor faulty PG motor faulty...
Page 87 ZYMBO AATT Note :  Master must be on if we want slave on  Master setting is from command on board on master unit.  Slave setting is from slave command on board on slave unit. 2) Master Machine connected to Slave machines and Saturn wired wall pad Note : ...
Page 88 ZYMBO AATT 4) Master Machine connected to data logger Note :  Master setting from PC  Slave setting should be master setting or command on board on slave unit.  Slave setting should be only master setting if lock from PC Ventilarredo Service Manual –...
Page 89: Easy Pcb Control Specification
ZYMBO AATT EASY PCB CONTROL SPECIFICATION 8.1 EASY PCB PICTURES AND WIRING SCHEME 8.1.1 Main PCB picture Note : On plastic support where is fixed connection PCB will be reported a label to avoid installer mistake during wiring connection Note : Dimension and fixing hole must be respected to avoid conflict with PCB plastic box Ventilarredo Service Manual –...
Page 90 ZYMBO AATT 8.1.2 PCB wiring diagram 8.1.3 Wall pad wiring diagram Note: Wall pad wiring diagram is just for customer checking. Ventilarredo Service Manual – English Pag. 90...
Page 91 ZYMBO AATT 8.1.4 PCB wiring connection scheme Note : PCB must be connect : 10. Power supply : L-N-GND 11. Valve 1 12. Valve 2 13. Wired wall pad 14. High,Mid and Low speeds with salve units All this connection must be on screw socket , not with plug connector , for two reason . Is difficult for connector to pass through corrugated pipe inside the wall , and if one wiring will be disconnected from connector is not possible to replace it from installer .
Page 92 ZYMBO AATT 8.2 CONTROL SPECIFICATION 8.2.1 Air conditioner ON/OFF Turning the air conditioner on or off by ON/OFF button on Wall pad, or remote control : Some Hailin wall pads and remote control are for example: HL116 HL2003 HL109 HL2008...
Page 93 ZYMBO AATT 8.2.3 Mater-slave unit function The unit which connected with wall pad would be the master unit, and other units would be slave units. Master unit and all slave units would be turned on or off same time, and all units would work with same mode.
Page 94 ZYMBO AATT 8.3 CONTROL FUNCTION 1) L/N for unit: Supply the electrical power to unit and wall pad. 2) L/N for wall pad: Supply electrical power to wall pad. 3) Input from wire wall pad: The input signal from wire wall pad is force electricity. High, middle and low speeds for motor, valve1 and valve2, all these input are force electricity.

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Ventilarredo rx-400/exc Ventilarredo rx-200/eco Ventilarredo rx-400/eco