![Daikin EWAP460MBYN [4/22] Function of the main components](/img/pdf.png)
Daikin EWAP460MBYN [4/22] Function of the main components
![Daikin EWAP460MBYN [4/22] Function of the main components](/views2/1657092/page4/bg4.png)
Operation manual
3
EWAP400~540MBYNN
Packaged air-cooled water chillers
4PW22679-1B
Function of the main components
Figure -
Functional diagram
As the refrigerant circulates through the unit, changes in its state or
condition occur. These changes are caused by the following main
components:
■
Compressor
The compressor (M*C) acts as a pump and circulates the
refrigerant in the refrigeration circuit. It compresses the
refrigerant vapour coming from the evaporator at the pressure at
which it can easily be liquefied in the condenser.
■
Condenser
The function of the condenser is to change the state of the
refrigerant from gaseous to liquid. The heat gained by the gas in
the evaporator is discharged through the condenser to the
ambient air, and the vapour condenses to liquid.
■
Filter/drier
The filter installed behind the condenser removes small particles
from the refrigerant to prevent blockage of the tubes.
The drier takes water out of the system.
■
Expansion valve
The liquid refrigerant coming from the condenser enters the
evaporator via an expansion valve. The expansion valve brings
the liquid refrigerant to a pressure at which it can easily be
evaporated in the evaporator.
■
Evaporator
The main function of the evaporator is to take heat from the
water that flows through it. This is done by turning the liquid
refrigerant, coming from the condenser, into gaseous
refrigerant.
■
Water in/outlet connection
The water inlet and outlet connection allow an easy connection
of the unit to the water circuit of the air handling unit or industrial
equipment.
■
Flowswitch
The flowswitch protects the evaporator of the unit against
freezing when there is no waterflow or when the waterflow is too
low.
■
Water filter
The water filter protects the evaporator against clogging.
Safety devices
The unit is equipped with three kinds of safety device:
1
General safety devices
General safety devices shut down all circuits and stop the whole
unit. For this reason the unit has to be manually put on again
after a general safety occurred.
2
Circuit safety devices
Circuit safety devices shut down the circuit they protect. For this
reason the unit does not need to be manually put on again after
a circuit safety occurred.
3
Part safety devices
Part safety devices shut down the part they protect.
An overview of all safety devices is given below.
■
Overcurrent relay
The overcurrent relays (K*S) are located in the switchbox of the
unit and protect the compressor motors in case of overload,
phase failure or too low voltage. The relays are factory-set and
may not be adjusted. When activated, they must be reset
manually, followed by a reset of the controller.
R6T
R3T
R4T
M25F M26F
M11F M12F
S4T
M2C
B2P
Y16S
M13F M14F M15F M16F
R5T
M1C
Y15S
S1PH
Y11S
S14PH
Y25S
Y26S
Y21S
S2PH
S15PH
M21F M22F M23F M24F
S3T
B5P
R7T
1" 1"
A
34
1
5
7 10 96
2 12
8
(**)
1"
1"
B
8
(*)
(**)
(*)
B1P
(***) (***)
B1P
11
CD A
8
1"
1"
B
8
B1P
B1P
11
CD
14
13
1
Evaporator
7
Liquid stop valve
13
Filter
(*)
Standard (see detail A) or optional dual
pressure relief valve (see detail B)
2
Condenser
8
Safety valve
14
Flowswitch
3
Water out
9
Expansion valve
A
Standard
(**)
Standard (see detail A) or optional dual
pressure relief valve (see detail B)
only for 100 hp circuit
4
Water in
10
Sightglass
B
Dual shut off valve
5
Drier
11
Suction stop valve (optional)
C
Standard
(***)
Standard (see detail C) or optional
suction stop valve (see detail D)
6
Charge valve
12
Strainer
D
Option suction valve
Содержание
- Operation manual 1
- Packaged air cooled water chillers 1
- Electrical specifications 2
- Important information regarding the refrigerant used 2
- Introduction 2
- Operation manual 2
- Technical specifications 2
- Description 3
- Escription 3
- Function of the main components 4
- Safety devices 4
- Internal wiring parts table 5
- Before operation 6
- Checks before initial start up 6
- General recommendations 6
- Operation 6
- Power supply connection and crankcase heating 6
- Water supply 6
- Digital controller 7
- Operation 7
- Peration 7
- Working with the unit 7
- Consulting actual operational information 8
- Switching the unit off 8
- Switching the unit on 8
- Switching units on off in a dicn system 8
- Adjusting the temperature setpoint 9
- Resetting the unit 9
- Advanced features of the digital controller 10
- All menus are directly accessible using the corresponding key on the digital controller the down arrow x on the display indicates that you can go to the next screen of the current menu using the h key the up arrow w on the display indicates that you can go to the previous screen of the current menu using the g key if c is displayed this indicates that you can either return to the previous screen or can go to the next screen 10
- Depending upon the settings in the user settings menu the 10
- Menu can either be entered directly or by means of the user password 10
- Menu protected by the user password allows a full customization of the units 10
- Readout menu 10
- Setpoint 10
- Setpoints menu 10
- This chapter gives an overview and a brief functional description of the screens provided by the different menus in the following chapter you will find how you can set up and configure the unit using the various menu functions 10
- Timers menu 10
- User setting 10
- User settings menu 10
- Additionally the number of safeties that already occured can be consulted on the first line of the history screens 11
- Along with the basic information more detailed information screens can be consulted while the safety menu is active press the q key screens similar to the following will appear 11
- Histor 11
- History menu 11
- Info menu 11
- Input outpu 11
- Input output menu 11
- Menu contains all the information concerning the latest shutdowns the structure of those menus is identical to the structure of the safeties menu whenever a failure is solved and the operator performs a reset the concerning data from the safeties menu is copied into the history menu 11
- Menu gives the status of all the digital inputs and the relay outputs of the unit 11
- Menu provides useful information for trouble shooting purposes the following screens contain basic information 11
- Safetie 11
- Safeties menu 11
- To check the actual value of the compressor startup timers and the stop timers 11
- To check the capacity mode and feedback of circuit 1 11
- To check the capacity mode and feedback of circuit 2 11
- To check the status of the changeable digital inputs note that for a unit in a dicn system the inputs apply to this unit it will be the remote input on the master unit however that will be determining for the operation of the unit 11
- To check the status of the fanspeed relays of circuit 1 11
- To check the status of the high pressure switch the reverse phase protector and overcurrent relay for circuit 1 11
- To check the status of the high pressure switch the reverse phase protector and the overcurrent relay for circuit 2 11
- To check the status of the power relays of circuit 1 11
- To check the status of the power relays of circuit 2 11
- To check the time and control mode at the moment of the unit shutdown 11
- To check whether or not the discharge thermal protector or the compressor thermal protector are activated for circuit 1 11
- To check whether or not the discharge thermal protector or the compressor thermal protector are activated for circuit 2 11
- To check whether or not the emergency stop device is active and if there s any water flow to the evaporator 11
- To check which was the evaporator outlet water temperature of the circuit and the thermostat step at the moment of shutdown 11
- To check which was the status of the compressors at the moment of shutdown 11
- To check which were the evaporator and condenser inlet water temperature and the evaporator outlet water temperature 11
- To check which were the pressures of circuit 1 at the moment of shutdown 11
- To check which were the pressures of circuit 2 at the moment of shutdown 11
- To check which were the total amount of running hours of the compressors and the ambient temperature at the moment of shutdown 11
- To consult additional information about the unit such as the unit type and the refrigerant used 11
- To consult information about the circuit 1 safety which caused the shutdown 11
- To consult information about the circuit 2 safety which caused the shutdown 11
- To consult information about the controller s software version 11
- To consult information about the dual pump which caused the shutdown 11
- To consult information about the network safety which caused the shutdown 11
- To consult information about the pcb 11
- To consult information about the unit safety which caused the shutdown 11
- To consult time and date information 11
- Defining and activating the control mode 12
- Defining the lead lag mode 12
- Defining the thermostat settings 12
- Entering the user settings menu 12
- Network menu 12
- User password menu 12
- Defining dual evaporator pump control 13
- Defining free cooling 13
- Defining the capacity limitation settings 13
- Defining the display settings 13
- Defining the pump control settings 13
- Defining the schedule timer 13
- Defining the floating setpoint settings 13
- Activating or deactivating the setpoints password 14
- Checking the actual value of the software timers 14
- Defining bms control 14
- Defining the network settings 14
- Checking the safety info and the unit status after a reset 15
- Checking the status of the inputs and outputs 15
- Consulting additional unit information 15
- Listing activated safeties and checking the unit status 15
- Changing the user password 16
- Roubleshooting 16
- Troubleshooting 16
- Aintenance 18
- Disposal requirements 18
- Maintenance 18
- Maintenance activities 18
- Inlet water temperature control outlet water temperature control 19
- Schedule timer example 19
- Thermostat parameters 19
- Floating setpoint working 20
- Free cooling on ambient temperature 20
- Free cooling on difference between inlet water evaporator temperature and ambient temperature 20
- Free cooling working 20
- Oftware structure 21
- Q q q q 21
- Pw22679 1b 22
Похожие устройства
- Daikin EWAP460MBYN Инструкция по монтажу
- Daikin EWAP460MBYN Технические данные
- Daikin EWAP460MBYN Сервис мануал
- Daikin EWAP540MBYN Инструкция по инсталяции
- Daikin EWAP540MBYN Инструкция по эксплуатации
- Daikin EWAP540MBYN Инструкция по монтажу
- Daikin EWAP540MBYN Технические данные
- Daikin EWAP540MBYN Сервис мануал
- Daikin EWWD340CJYNN Инструкция оператора
- Daikin EWWD340CJYNN Инструкция по монтажу
- Daikin EWWD340CJYNN Технические данные
- Daikin EWWD340CJYNN Сервис мануал
- Daikin EWWD400CJYNN Инструкция оператора
- Daikin EWWD400CJYNN Инструкция по монтажу
- Daikin EWWD400CJYNN Технические данные
- Daikin EWWD400CJYNN Сервис мануал
- Daikin EWWD480CJYNN Инструкция оператора
- Daikin EWWD480CJYNN Инструкция по монтажу
- Daikin EWWD480CJYNN Технические данные
- Daikin EWWD480CJYNN Сервис мануал