INDEX Refrigerant circuit General warnings Checking and starting up the unit Fundamental safety rules Activating and deactivating the unit Description of standard unit Shutting down for long periods Dimensioned drawings Routine maintenance Installation Extraordinary maintenance Hydraulic connections Operating characteristics Electrical connections Disposal Operation limits Troubleshooting...
GENERAL WARNINGS This unit is designed to cool/heat water and must be first time without the presence of personnel used in applications compatible with its performance authorised by the Company (where specified in the characteristics, i.e. residential or commercial applications supply contract) who should draw up a “start-up”...
DESCRIPTION OF STANDARD UNIT These air cooled reverse-cycle chillers with axial-flow fans CONDENSING COILS operate with refrigerant fluid and are suitable for outdoor Made from copper tubes and high surface area aluminium installation. fins.Condensing coil protection grills as standard. They are factory tested and on site installation is limited to water and electrical connections.
DIMENSIONED DRAWINGS INSTALLATION CHOICE OF INSTALLATION SITE To avoid the slings damaging the unit,place protection Before installing the unit, agree with the customer the site between the slings and the unit.Position the unit in the where it will be installed,taking the following points into site indicated by the customer.Place either a layer of consideration: rubber (min.thickness 10 mm) or vibration damper feet...
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INSTALLATION SPACE Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling. Never hold the inlet of the outdoor unit to prevent it from deforming. Do not touch the fan with hands or other objects. Do not lean it more than 45 , and do not lay it sidelong.
HYDRAULIC CONNECTIONS 1.Two pressure gauges with a suitable scale (inlet and The choice and installation of components is the responsi- outlet). bility of the installer who should follow good working 2.Two vibration damper joints (inlet and outlet). practice and current legislation.Before connecting the 3.Two gate valves (normal in inlet and calibrating in pipes,make sure they do not contain stones,sand,rust, outlet).
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If the installation requires a useful head higher than that FILLING THE INSTALLATION obtained by installing a pump assembly and storage tank, -Before filling,check that the installation drain cock is it is recommended that an additional pump is installed on closed.
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DESIGN OF THE STORE TANK IN THE SYSTEM Minimum and maximum water flow rates Item Water flow rate(m kW is the unit for cooling capacity, L is the unit for (G) minimum water flow volume in the formula. Model Minimum Maximum Comfortable type air conditioner 1.54...
ELECTRICAL CONNECTIONS Voltage must be within a tolerance of ±10% of the The unitary minichillers leave the factory already wired, and require the installation of an omnipolar thermal rated power supply voltage for the unit (for three overload switch,a lockable mains disconnecting switch for phase units,the unbalance between the phases the connection to the mains power supply,and the connec- must not exceed 3%).If these parameters are not...
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ELECTRICAL POWER CONNECTIONS The Specification of Power MUENR-12-H6T MUENR-10-H6 MODEL MUENR-14-H6T MUENR-12-H6 MUENR-16-H6T PHASE 1-PHASE 3-PHASE POWER FREQUENCY AND VOLT 220-240V~, 50Hz 380-415V~, 50Hz CIRCUIT BREAKER/FUSE (A) 40/35 30/25 3x6.0 5x4.0 POWER WIRING(mm The power cord type designation is H07RN-F. T he means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors.
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a. Additional pump d. Remote alarm Main control board Main control board 220-240V 220-240V Note: Remote alarm terminal only provides passive AC contactor switching signal. Current passing through the terminal interface should less than 1.5A, other wise please use Additional pump AC contactor to control load indirectly.
OPERATION LIMITS Air conditioner operating conditions For proper performance, run the air conditoner under the following temperature conditions Outdoor temperature: -5 ~ Cooling operation Water outlet temperature: 4 ~ Outdoor temperature: -15 ~ Heating operation Water outlet temperature: 30ºC~54ºC If air conditioner is used beyond the above conditions, safely protection features may come into operation Note: When the outdoor temperature is too low, the unit in standby mode will activate frost protection, forced to run pumps or forced heating operation to protect the unit water system.
Fouling factors Evaporator If the total water volume in the system is less than the °C/W) value in the table above, the additional water tank is necessary in order to avoid the compressor On and Off 4.4 x 10 frequently. 0.86 x 10 0.96 0.99...
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MUENR-16-H6T 80.0 70.0 60.0 Ⅲ+LJK 6SHHG 50.0 40.0 Ⅱ0HGLXP 6SHHG 30.0 20.0 Ⅰ/RZ 6SHHG 10.0 Flow (m PUMP LED DIAGNOSIS AND SOLUTIONS The pump has an LED operating status display. This makes it easy for the technician to search for the cause of a fault in the heating system. >...
FILLING WITH WATER 1. Connect the water supply to the fill valve and open the valve. 127( 2. Make sure the automatic air purge valve is open (at least 2 turns). 3. Fill with water until the manometer indicates a pressure of approximately 2.0 bar.
CHECKING AND STARTING UP THE UNIT PREPARING FOR FIRST START UP To complete the electrical connections: Restarting after shutting down for long periods - Remove the inspection panel by unscrewing the five The chiller must be started up for the first time by the screws Technical Service.Before starting up the chillers,make sure that:...
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Icon Description Outside heat source running icon (Reserved) Cooling mode icon This icon will be constantly light when customers choose cooling mode. Heating mode icon This icon will be constantly light when customers choose heating mode. Water pump mode icon This icon will be constantly light when customers choose water pump mode.
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Icon Description 1.(Value increase) 2.Forward to the previous interface. Down 1.(Value decrease) 2.Backward to the next interface. “ ” to enter timing on setting. II.Control panel operation description At this moment, last 2 digits of the nixie tube display 1) ON/OFF “01”...
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query Refers the timing off setting operation of group 1 to set 2.Parameter function that of group 2. To enter parameter query function Press “ ” and “ ” simultaneously for 3s to enter 3.Cancel all timing on/off settings into the interface of parameter query function.
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5.Error code and protection code shooting table: EEPROM malfunction Anti-idling protection of water pump Low temperature protection in heating mode Communication malfunction between the main controlling chip and IPDU T3 T4 temperature sensor malfunction Voltage protection DC fan motor malfunction Evaporator high temperature protection in heating mode Two times of E6 protection in 10 minutes(Recover when powering off)
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SHUTTING DOWN FOR LONG PERIODS If it is previewed not to use the machine for long periods If there is a possibility that the outside temperature After deactivating the chiller: may drop below zero,there is the risk of freezing. -Make sure the model is in the Power off model " ", The water circuit MUST BE EMPTIED AND SHUT or alternatively disconnect the unit from the power supply.
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OPERATING CHARACTERISTICS )DQ VSHHG FRQWURO 6HW WHPSHUDWXUH LQ FRROLQJ For correct operation of the unit with different ambient 5DQJHa℃ (default:12℃) temperatures, the microprocessor controls the fan speed based If the set temperature is between 10~13℃, the compressor start and on the ambient temperature and the condensing or evaporation shut down according to the difference between the inlet temperature temperature as well as compressor frequency, thus enabling heat...
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DISPOSAL If electrical appliances are disposed of in landfills or dumps, Do not dispose this product as unsorted municipal waste. hazardous substances can leak into the groundwater and get Collection of such waste separately for special treatment is into the food chain, damaging your health and well-being. necessary Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
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FAULT CAUSE REMEDY High discharge pressure High external water temperature Check High water inlet temperature (greater than 36 bars) Check fan operation Insufficient air flow Insufficient water flow Check pump operation Check Faulty fan regulation Air in water circuit Ventair Excessive refrigerant charge Check Low outside air temperature...
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SPECIFICATIONS Model 220-240, 1, 50 220-240, 1, 50 220-240, 1, 50 220-240, 1, 50 V-Ph-Hz Power supply a a 10.0(2.9~10.5) 11.2(3.1~12.0) 11.2(3.1~12.0) 12.5(3.3~14.0) 14.5(3.5~15.5) Capacity rated Input 1550 2250 2950 3500 3900 4700...
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IMPORTANT INFORMATION FOR THE USED REFRIGERANT This product has the fluorinated gas, it is forbidden to release to air. 5HIULJHUDQW W\SH 5$ 9ROXPH RI *:3 GWP=Global Warming Potential Factory charge Model Refrigerant/kg tonnes CO equivalent 2.50 5.22 2.50 5.22 10kW...
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