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Daikin Clima-Flex CLIV Series, Installation, Operation And Maintenance Manual, Page: 26 / 46

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Daikin Clima-Flex CLIV Series Installation, Operation And Maintenance Manual Download Page 26

iom-cliv-cf-eng

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26

Sequence Of Operation

Figure 16.  Sequence of operation of the unit - Cool mode.

Unit Power up

Unit in OFF state

Is unit 

enabled?

No

No

Yes

Is motor 

saver alarm 

active?

Yes

Is switch 

“Reset” 

button 

on?

No

Evaporator pump 

output on

Is flow 

present?

No

Wait the time for the 

start up compressor

The contactor auxiliar 

remains on while chiller 

is enabled

Is the protection

module or

frecuency

variator of the

compressor

active?

Keep pump and auxiliary 

output on while the 

chiller is enabled

Is there 

enough 

load to 

start 

chiller?

Start the circuit 

Operation of circuit in 

stabilization

Yes

No

No

Yes

1

Yes

1

1

2

Summary of Contents for Clima-Flex CLIV Series

Page 1: ...Operation and Maintenance Manual IOM Group Chiller Part number IOM CLIV Date 16 November 2022 CLIV Series Air Cooled Fixed Compressor Chilled Water Chiller Unit Model 3 5 and 10 TR Refrigerant HFC 41...

Page 2: ...Controller Operation 24 Sequence Of Operation 26 Funciones De La Unidad 30 Funciones De Los Circuitos 31 Alarmas 33 Uso Del Controlador 35 Procedimientos De Arranque Y Apagado 38 Mantenimiento De La U...

Page 3: ...rtup Cooler components EXV sensor transducers installed and wired properly Wiring complies with National Electrical Code and local codes See Notes Various Si No N A Iniciales Unit control disconnects...

Page 4: ...rigerant leaks from the unit there is a potential choking danger as the refrigerant will displace air in the immediate area Be sure to follow all applicable published industry related standards and lo...

Page 5: ...0 060 60 000 120 120 000 AIR DISCHARGE HD Horizontal Discharge OPERATION C Cooling Only H Heat Pump UNITS 1 Stand alone CONDENSER FAN A Axial Fixed ANTICORROSION C Coat in Condenser I Coat in Componen...

Page 6: ...tions DANGER Improper rigging lifting or moving of a unit can result in property damage serious personal injury or death Follow the rigging and moving instructions carefully Do not stand under the uni...

Page 7: ...ation of fans and compressors The noise level for each unit size model is listed in the technical documentation If the unit is properly installed operated and regularly maintained the noise levels do...

Page 8: ...f wall openness is less than recommended for the distance to the unit it should be considered a solid wall The wall height is assumed to be equal to or less than the height of the unit when mounted on...

Page 9: ...evaporators must have a drain and vent connection at the bottom of the bottom connection piping and at the top of the top connection piping respectively see Figure 6 These evaporators do not have dra...

Page 10: ...tes below the minimum values can result in laminar flow leading to low pressure alarms fouling and poor temperature control Variable evaporator flow Reducing the evaporator flow rate in proportion to...

Page 11: ...for longer than the specified time to help prevent evaporator freeze up Connection points are shown in the field wiring diagram beginning on page 20 1 If the unit will not operate during the winter d...

Page 12: ...ith a series of flat tubes containing multiple parallel flow microchannels placed between the coolant manifolds The microchannel coils are designed to withstand the synthetic acidified seawater acidif...

Page 13: ...iom cliv cf eng www clima flex com 13 Figure 8 Refrigeration Schematics CLIV Refrigeration Schematics...

Page 14: ...iom cliv cf eng www clima flex com 14 Refrigeration Schematics Figure 9 CLIV heat pump cooling scheme...

Page 15: ...iom cliv cf eng www clima flex com 15 Figure 10 CLIV Dimensions and Weights Packaged Units...

Page 16: ...iom cliv cf eng www clima flex com 16 Dimensions and Weights Packaged Units Figure 11 CLIV heat pump...

Page 17: ...en open the register1 Fig 12 Subsequently isolate the vacuum pump and open the register 2 When a value of less than 200 mecrons is obtained try to reach the lowest possible value the vacuum procedure...

Page 18: ...E EVAPORATOR DROP TOTAL DROP DP ft WG DP ft WG 3 UNIT 16 7 32 5 UNIT 16 7 32 10 DUPLEX 16 7 32 Table 5 Evaporator Pressure Drop Data FAMILY TR R410A Lb R410A Kg CLIV 3 TR 3 56 1 61 CLIV 5 TR 3 52 1 60...

Page 19: ...gram 3 The single point power supply requires a single disconnect to supply electrical power to the unit This power supply must have a fuse or use a circuit breaker 4 All field wiring terminal range v...

Page 20: ...iom cliv cf eng www clima flex com 20 Electrical Data Figure 13 Typical field wiring diagram of the 220v slave only cold unit single point connection with all options shown...

Page 21: ...iom cliv cf eng www clima flex com 21 Electrical Data...

Page 22: ...iom cliv cf eng www clima flex com 22 Electrical Data Figure 14 Typical field wiring diagram of the 440v slave single cold unit single point connection with all options shown...

Page 23: ...iom cliv cf eng www clima flex com 23 Electrical Data...

Page 24: ...reless connectivity with mobile devices and is integrated on panel mounted models and purchased separately on DIN rail mounted models SYSTEM ARCHITECTURE The general architecture of the controls uses...

Page 25: ...essor 2 NO3 MC 95 Water pump NO4 B 24V2 4 way valve NO5 Output available for alarm connection SET POINTS When we start configuring the unit for the first time all the preload parameters have a default...

Page 26: ...et button on No Evaporator pump output on Is flow present No Wait the time for the start up compressor The contactor auxiliar remains on while chiller is enabled Is the protection module or frecuency...

Page 27: ...y Increase unit capacity Unit turn up full capacity Operation of circuit in stabilization Unit turn down full capacity Decrease unit capacity Is unit running at minimun capacity No No Yes No No Yes Ye...

Page 28: ...Reset button on No Evaporator pump output on Is flow present No Wait the time for the start up compressor The contactor auxiliar remains on while chiller is enabled Is the protection module or frecuen...

Page 29: ...y Increase unit capacity Unit turn up full capacity Operation of circuit in stabilization Unit turn down full capacity Decrease unit capacity Is unit running at minimun capacity No No Yes No No Yes Ye...

Page 30: ...CONTROLLER CALCULATIONS Condenser approach The capacitor approximation will be calculated for each circuit The equation is as follows Capacitor approximation Capacitor saturated temperature OAT Sucti...

Page 31: ...s capacity control logic commands it to shut down A discharge alarm occurs and sequencing requires this compressor to be the next compressor to shut down The circuit status is pumping and sequencing...

Page 32: ...frosted equalizer line indicates internal leaks and will require valve replacement Repair or replacement of a bent equalizer will be necessary for the valve to operate properly TXVs are designed to m...

Page 33: ...log If the alarm is automatically reset the alarm key is turned off the alarm code disappears from the list and the alarm termination event is recorded in the alarm log Procedure alarm acknowledgement...

Page 34: ...ther with the current pump configuration A15 This alarm usually appears when the water temperature does not drop due to the current cooling process This alarm is more of a WARNING than a serious alarm...

Page 35: ...e top row the flow water temperature In the bottom row with the unit switched on the return water temperature With the unit switched off the OFF status during Bluetooth communication the text bLE flas...

Page 36: ...rs such as direct commands and active alarms can be accessed through the user terminal without password or with password to those dedicated to unit configuration and optimization Press DOWN for 3 s to...

Page 37: ...t pump units Press DOWN the manual defrost command dFr appears Press DOWN the command to cancel the alarm log ClrH appears Assistance level only Press DOWN the selection of units of measurement UoM ap...

Page 38: ...ydraulic circuit is closed Check for foreign objects in the fan discharge Check that the air inlet is not obstructed and has the suggested clearance INSPECTION OF THE HYDRAULIC CIRCUIT Date Place of W...

Page 39: ...ions Measure voltage on all units ground neutral and 3 phase line Check that motor overload protection conforms to design requirements and is in automatic mode Check voltage Motor save which is set to...

Page 40: ...turned on Turn the switch on the CONTROL UNIT to the ON position to power the control panel with 24 volts UNIT CONTROL To start operations turn the ON OFF switch to the ON position After 6 seconds th...

Page 41: ...onsible for the malfunction of the unit if the main cause is lack of maintenance or the operating conditions of the unit do not correspond to those recommended in this manual MAINTENANCE GENERAL Routi...

Page 42: ...ay start up and cause injury Disconnect all power sources before inspecting the fan EXPANSION VALVE The function of the expansion valve is to maintain adequate supply of refrigerant to the evaporator...

Page 43: ...these must be under the manufacturer s specifications Twice a month Plan x x x x x x Real Cleaning of the electrical panel monthly Plan x x x x x x x x x x x x Real PHYSICAL INSPECTION Jan Feb Mar Ap...

Page 44: ...r supports at suction or discharge Reposition add or remove hangers Compressor insulator bushing worn Replace Compressor mechanical failure Check for possible problem in compressor failure and replace...

Page 45: ...el too high with compressor operation Confirm superheat is correct remove oil Operation or selection of expansion value Confirm superheat at minimum and maximum load conditions Compressor mechanical p...

Page 46: ...iom cliv cf eng www clima flex com...

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