Air to Water HEX unitAir to Water Booster...
Transcript of Air to Water HEX unitAir to Water Booster...
For Internal Training
Sales / Technical Guide
Air to Water Booster unit Air to Water HEX unit
MEE08K021New publication effective Sep. 2008
Specifications subject to change without notice
http://Global.MitsubishiElectric.com
Certificate Number EC97J1227
The Air Conditioning & Refrigeration Systems Works acquired environmental management system standard ISO 14001 certification.
The ISO 14000 series is a set of standards applying to environmental protection set by the International Standard Organization (ISO).
FM 33568 / ISO 9001;2000
The Air Conditioning & Refrigeration Systems Works acquired ISO 9001 certification under Series 9000 of the International Standard Organization (ISO) based on a review of Quality , management for the production of refrigeration and air conditioning equipment.
ISO Authorization SystemThe ISO 9000 series is a plant authorization system relating to quality management as stipulated by the ISO. ISO 9001 certifies quality management based on the "design, development, production, installation and auxiliary services" for products built at an authorized plant.
AIR CONDITIONING SYSTEMS
CO
NTEN
TSTHE BASICS1
1-1 What is Booster unit?
1-2 What is HEX unit?
FEATURES2
2-1 Comparison between Booster unit, HEX unit, gas/oil boilers, and electric heaters
2-2 Wide range of applications
2-3 Selecting a model
CONTROL3
3-1 Control options designed for Booster unit and HEX unit
INSTALLATION4
4-1 Installation
Q&A5
5-1 Booster unit/HEX unit Specification and function
5-2 Booster unit/HEX unit Installation and service
5-3 Sales
Reduce CO2 emissions Improve energy performance
Ensure that we heat and cool by the most efficient
means possible.
As a leading manufacturer of energy efficient heat
pump systems, we constantly strive to meet and
exceed the increasing demands placed on our
industry. The drive to reduce energy consumption
and the impact it’s use has on the environment is
crucial and increasingly important to us all. The need
to be more energy conscious and environmentally
responsible has long driven Mitsubishi Electric to
spend huge amounts of resource on researching and
developing the solutions of the future. As market
leaders, at the forefront of the very latest technology,
we pride ourselves in providing high performance
and competitive systems on which you can rely.
Amongst such developments is the advanced heat
pump technology used in Booster unit and HEX unit.
With many people spending much of their time
indoors at home or work, it is not surprising that
buildings account for a large percentage of all
energy use. This means that there is great scope for
reducing energy use through better-designed
buildings and more efficient heating, cooling and
hot-water systems.
NEW TECHNOLOGY
WE NEED TO
1 2
Efficient and technologically advanced, Booster unit takes advantage of proven heat recovery technology to provide hot water for sanitary use and is one of the most advanced, efficient hot water systems available today.
Benefiting from the heat recovery operation of the
CITY MULTI R2 system, Booster unit converts
energy from the air to higher temperatures suitable
for heating water and results in virtually no energy
waste.
With a high COP output achieved, the MITSUBISHI ELECTRIC HEX unit system provides a greater level of comfort, lower CO2 emissions and reduced running costs.
TECHNOLOGY
Capable to air condition and supply hot water in a
single system, Booster unit is ideal for use in a
variety of applications. From hotels to restaurants to
gyms, it works perfectly in providing optimum air
environment and hot water to a maximum of 70˚C.
HIGH EFFICIENCY
HEX unit works perfectly to provide heating and
cooling to water fan coil units, panel heaters, or
under floor heating systems. It benefits from the
high-efficient operation of our CITY MULTI and heat
recovery operation when used with R2 system.
TECHNOLOGY
HEX unit offers 45˚C in heating and down to 8˚C in
cooling, making it suitable for residential properties,
offices or hotels, providing an optimal environment
while benefiting from reduced running costs and
lessening the impact on our environment.
FEATURES
3 4
What is Booster unit?1-1 What is HEX unit?1-2
Booster unit
for R2HEX unit
for Y/R2Pumpwater
Comp.R134a
R410A
TANK
HP
LPLEV
LEV
BC controller
Indoorunit
Indoorunit
Closed loop circuit
Plate Hex.
Plate Hex.
Booster Unit
CITY MULTI
seriesR2
IndoorOutdoor
R410A
LEV
Pump
water
BC controllerR2,Y
Indoorunit
Indoorunit
Closed loop circuit
Plate Hex.
HEX Unit
Floor Heating orPanel Heateror FAN-coil(AHU)
CITY MULTI
series
❈BC controller is only required for the system with R2 series.
IndoorOutdoor
Power sourcekW*1Heating capacitykcal / hBTU / hkWAW.B
*1(Nominal)*1
Power inputCurrent inputOutdoor temp.Temp. range of
W.B-
heatingInlet Water temp.
kW*2Cooling capacitykcal / hBTU / hkWAD.B
*2(Nominal)*2
Power inputCurrent inputOutdoor temp.Temp. range of cooling
D.B-Inlet Water temp.
Total capacityModel / Quantity
Connectableoutdoor unit
Sound pressure level (measured in anechoic room) dB<A>mm(in.)mm(in.)
Diameter of refrigerant pipe
mm(in.)mm(in.)
Diameter of water pipe
mm(in.)
mm
Field drain pipe sizeExternal finishExternal dimension H ✕ W ✕ D
in. kg(lb)Net weight
Circulating waterDesign pressure
WaterR410a
Drawing
Standard attachment
Optional partsRemark
Note: *2 Nominal cooling conditions *1 Nominal heating conditionsOutdoor Temp. : 7˚CDB/6˚CWB (45˚FDB / 43˚FWB) Outdoor Temp. : 35˚CB (95˚FDB)
kcal = kW ✕ 860BTU/h = kW ✕ 3,412
Pipe length : 7.5 m (24-9/16 ft)Pipe length : 7.5 m (24-9/16 ft)Level difference : 0m (0ft)Level difference : 0m (0ft)
cfm = m3/min ✕ 35.31Inlet water Temp 30˚C Water flow rate 2.15m3/h Inlet water Temp 23˚C Water flow rate 1.93m3/h* Install the unit in an environment where the
lb = kg / 0.4536 * Due to continuing improvement, the above specifications may be subject to change without notice.
wet bulb Temp. will not exceed 32degC. * The unit is not designed for outside installations. * Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0˚C or less. * Please always make water circulate or pull out the circulation water completely when not using it.
InletOutlet
Operation Volume Range
LiquidGas
m3/h
MPaMPa
Accessory
ExternalWiringDocument
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, andother items shall be referred to the Installation Manual.
Unit converter
* The specification data is subject to rounding variation.
38,200
10~35˚C (50~95˚F)
0.015
PT3/4 Screw
Installation Manual, Instruction Book
PT3/4 Screw
NO
WKB94L763
0.068 - 0.065 - 0.063
50~100% of outdoor unit capacityPURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)
PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)
PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)PUHY-P200YHM-A(-BS)~PUHY-P450YHM-A(-BS)
PUHY-P500YSHM-A(-BS)~PUHY-P1250YSHM-A(-BS)PUHY-EP200YHM-A(-BS)~PUHY-EP300YHM-A(-BS)
PUHY-EP400YSHM-A(-BS)~PUHY-EP900YSHM-A(-BS)
-5~43˚C (23~110˚F) PURY - series-5~43˚C (23~110˚F) PUHY - series
0.6~2.15
1.00
Strainer, Heat insulation material, 2 ✕ Connector sets
1-phase 220-230-240V 50/60Hz
9,60011.2
29
12.5
800 (785 without legs) ✕ 450 ✕ 300
E00C223
4.15
NONE
10,80042,700
-20~15.5˚C (-4~60˚F) PUHY - series10~40˚C (50~104˚F)
0.0150.068 - 0.065 - 0.063
-20~32˚C (-4~90˚F) PURY - series
31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"35 (78)
* Please do not use it as a drinking water. * Please do not use groundwater and well water.
Model
Power sourcekWHeating capacitykcal / h(Nominal )BTU / hkWAW.B
dB<A>mm(in.) mm(in.)mm(in.)mm(in.)mm(in.)
mmin.kg(lb)
kW
-
Power input
LiquidGas
Current inputOutdoor temp.Inlet Water temp.Total capacity
Temp. range ofheatingConnectableoutdoor unit Model / Quantity
Sound pressure level (measured in anechoic room)Diameter ofrefrigerant pipeDiameter of water pipeField drain pipe sizeExternal finishExternal dimension H ✕ W ✕ D
Net weightCompressor
MakerType
Starting methodMotor output
Circulating waterProtection on Internal circuit(R134a)
High pressure protectionInverter circuit (COMP)CompressorType ✕ original chargeRefrigerantControlR410aDesign pressureR134aWaterExternalDrawing
Standard attachment
Optional partsRemark
Note: *1 Nominal heating conditions Outdoor Temp. : 7˚CDB/6˚CWB (45˚FDB / 43˚FWB) kcal = kW ✕ 860 Pipe length : 7.5 m (24-9/16 ft)
BTU/ h = kW ✕ 3,412 Level difference : 0m (0ft)
cfm = m3/min ✕ 35.31 Inlet water Temp 65˚C Water flow rate 2.15m3/h
lb = kg / 0.4536 * Due to continuing improvement, the above specifications may be subject to change without notice. * Install the unit in an environment where the wet bulb Temp. will not exceed 32degC. * The unit is not designed for outside installations.
* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit.
* Please do not use it as a drinking water.
* Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0˚C or less. * Please always make water circulate or pull out the circulation water completely when not using it. * Please do not use groundwater and well water.
* The specification data is subject to rounding variation.
Unit converter
LubricantOperation volume Range
InletOutlet
Accessory
WiringDocument
m3/h
MPaMPaMPa
Model
1.00
Installation Manual, Instruction Book
800 (785 without legs) ✕ 450 ✕ 300
E64C226X01
Inverter1.0
Over-heat protection, Over-current protection
R134a ✕ 1.1kg (0.50lb)
10,80012.5
WKB94L762
NONE
44
NO
Strainer, Heat insulation material, 2 ✕ Connector sets
PWFY-P100VM-E-BU1-phase 220-230-240V 50/60Hz
PT3/4 Screw
MITSUBISHI ELECTRIC CORPORATION
NEO22
Inverter rotary hermetic compressor
31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"60 (133)
PT3/4 Screw
11.63 - 11.12 - 10.66
50~100% of outdoor unit capacityPURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)
PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)
PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)
-20~32˚C (59~90˚F)
42,700
10~70˚C (50~158˚F)
2.48
0.6~2.15
LEV 4.15
High pressure sensor, High pressure switch at 3.60 MPa (601 psi)
Discharge thermo protection, Over-current protection
3.60
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, andother items shall be referred to the Installation Manual.
ø9.52 (ø3/8") Brazedø15.88 (ø5/8") Brazed
ø32 (1-1/4")
ø9.52 (ø3/8") Brazedø15.88 (ø5/8") Brazed
ø9.52 (ø3/8") Brazedø19.05 (ø3/4") Brazed
ø32 (1-1/4") ø32 (1-1/4")
PWFY-P100VM-E-AU PWFY-P200VM-E-AU
10~40˚C (50~104˚F)
0.0150.068 - 0.065 - 0.063
-20~32˚C (-4~90˚F) PURY - series
21,50085,300
-20~15.5˚C (-4~60˚F) PUHY - series
E94C228X01
NONE
1-phase 220-230-240V 50/60Hz
19,30022.4
29
25.0
1.2~4.30
1.00
Strainer, Connecter, Heat insulation material, 2 ✕ Connector sets, Expansion joint
PT 1 Screw
Installation Manual, Instruction Book
NO
WKB94L763
31-1/2" (30-15/16" without legs) ✕ 17-3/4" ✕ 11-13/16"38 (84)
800 (785 without legs) ✕ 450 ✕ 300
4.15
0.015
PT 1 Screw
0.068 - 0.065 - 0.063
76,400
10~35˚C (50~95˚F)50~100% of outdoor unit capacity
PURY-P200YHM-A(-BS)~PURY-P400YHM-A(-BS)PURY-P450YSHM-A(-BS)~PURY-P800YSHM-A(-BS)PURY-EP200YHM-A(-BS)~PURY-EP300YHM-A(-BS)
PURY-EP400YSHM-A(-BS)~PURY-EP600YSHM-A(-BS)PUHY-P200YHM-A(-BS)~PUHY-P450YHM-A(-BS)
PUHY-P500YSHM-A(-BS)~PUHY-P1250YSHM-A(-BS)PUHY-EP200YHM-A(-BS)~PUHY-EP300YHM-A(-BS)
PUHY-EP400YSHM-A(-BS)~PUHY-EP900YSHM-A(-BS)
-5~43˚C (23~110˚F) PURY - series-5~43˚C (23~110˚F) PUHY - series
Comparison among Booster unit, HEX unit, gas/oil boilers, and electric heaters2-1
Gas/oil boiler
System outline
System structure
Maintenance
CO2 emission
Electric heater Booster unit HEX unit
Heats water using the energy released by combustion.
Heats water by immersing an electric heater inside the water tank, which directly heats the water.
Energy saving
Only consumes energy at the time and place where it is needed. Continuous running of the system required to keep load of buffer tank. Efficiency is low as COP of 1, as part of the embedded energy is lost through exhaust and emission losses.
Only consumes energy at the time and place where i t is needed. C o n s u m e d e n e r g y i s e n t i r e l y converted into effective heat at the point of use.Efficiency is low as COP of 1, as part of the embedded energy is lost through exhaust and emission losses.
By utilizing waste heat from the R2 outdoor unit for the booster unit, it is possible to supply hot water with high eff iciency operation.
By Utilizing waste heat from the R2 outdoor unit for heating operation in HEX unit, it is possible to supply hot water with high efficiency. (No efficiency when in cooling or connected with Y series)
Safety
Operation involves combustion. Due to special requirements, a boiler room is necessary. Proper installation is required to ensure safe operation, i.e.ventilation.Due to high voltage, careful handling and installation of power lines are required.
Relatively safe. Due to high voltage, careful handling and installation of power lines are required.
Relatively safe. Due to high voltage, careful handling and installation of power lines are required.If refrigerant leaks, there is a possibility of suffocation.
Relatively safe. Due to high voltage, careful handling and installation of power lines are required.If refrigerant leaks, there is a possibility of suffocation.
Highly efficient, as it utilizes waste heat from cooling to supply hot water.
Highly efficient, as it utilizes waste heat from cooling to supply hot water.
CO2 and NOx will not generate at the installation site.
CO2 and NOx will not generate at the installation site.
Regular maintenance and chimney sweeping required.Remote operation and monitoring is possible.
Easy maintenance, no chimney sweeping, no purging of the pipes. Remote operation and monitoring is possible.May require regular replacement of electric heater.
Easy maintenance, no need for regular serv ic ing by an exper t , no ch imney sweeping, no purging of the pipes. Remote operation and monitoring is possible.
Easy maintenance, no need for regular serv ic ing by an exper t , no ch imney sweeping, no purging of the pipes. Remote operation and monitoring is possible.
CO2 and NOx may generate at the installation site. The volume will be larger than an electric system.
CO2 and NOx will not generate at the installation site.
5 6
Hot-water cylinder
Heater
Gas, oil etc.
Combustion chamber
Exhaust gas
CO2
NOx
Booster Unit for R2Trans Flux type Hot-water supply
Hot-water supply
Water supply
Water supply
HEX unit for Y/R2
Indoorunit
Hot water supply
Water supply
CITY MULTI
seriesR2
Outdoor
Indoorunit
Hot water supply
Water supply
CITY MULTI
seriesR2
Outdoor
BC controller BC controller
COMP
Outdoor Unit
Boos
ter u
nit
From Outdoor Unit
From Outdoor Unit
Hot water up to 70˚C
High COP operation with heat recovery technology
High COP operation with double inverter technology
HOT water up to 45˚C
Easy operation by remote controller
Both hot and cool water available.(Depends on outdoor unit’s operation mode)
HEX unitProposal examples/Application examples2-2
Hot Water Heating/Cooling
Heating / CoolingFan coil unitsPanel heatersFloor heating
Healthcare facilities Hotels Hospitals Factories Gyms Supermarkets Apartments Restaurants Offices
Restaurant
Residence
7 8
Selecting a model2-3
(1) Model selection calculation (2) Model selection calculation example
PWFY unit Tank
++
A. For Air conditioning using such as Panel Heaters,
Floor Heating and Fan coil units
Required total heating capacity kW
Safety factor; %
B. For Sanitary use such as Shower and Bathrooms
Conditions
Tank inlet water Temp.; °C
Tank outlet water Temp.; °C
(Set Temp -5 °C)
Safety factor for Heat Loss; %
Operating time; Hours
For Shower; /Person x Person =
(Water Temp. Condition °C)
°C)
For Bathrooms; /Person x Person =
(Water Temp. Condition
(The examples of water volume might be need to be changed as you need.)
The conversion of water volume to °C
x ( - ) / ( - )
+ x ( - ) / ( - )
= /day
Heating Capacity Calculation for sanitary usage
/ 1,000 x ( - ) = M cal / day
The conversion of M cal to kW
/ 860 x 1,000 / = kW
C. Total (A+B)
Total Heating Capacity
x (100%
+x (100%
%) + x (100% %) = kW
D. No. of units required
Safety factor; %
%) / 12.5 kW = units
units are required
4
3 3
33
7
++
A. For Air conditioning using such as Panel Heaters,
Floor Heating and Fan coil units
Required total heating capacity 20
10
10
60
60
15
8
20
30
1,200
240
40
45
1,200
240
40
45
10
10
10
60
60
10
10
888
888
44.4
20
29.42 20
3
2.82
10
20
6.45 15 29.42
8 6.45
60 44.4
kW
Safety factor; %
B. For Sanitary use such as Shower and Bathrooms
Conditions
Tank inlet water Temp.; °C
Tank outlet water Temp.; °C
[ (Set Temp) -5°C ]
Safety factor for Heat Loss; %
Operating time; Hours
For Shower; 60 /Person x Person =
(Water Temp. Condition °C )
°C )
For Bathrooms; 8 /Person x Person =
(Water Temp. Condition
(The examples of water volume might be need to be changed as you need.)
The conversion of water volume to °C
x ( - ) / ( - )
+ x ( - ) / ( - )
= /day
Heating Capacity Calculation for sanitary usage
/1,000 x ( - ) = M cal / day
The conversion of M cal to kW
/ 860 x 1,000 / = kW
C. Total (A+B)
Total Heating Capacity
x (100%
+x (100%
%) + x (100% %) = kW
D. No. of units required
Safety factor; %
%) / 12.5 kW = units
units are required9 10
3-1 Control design for Booster unit and HEX unit
1. External input signal 2. Centralized controller 3. Remote controller
Control priorities
FunctionHeating ECO mode (Dip SW4-3 ON)
Anti freeze mode (Dip SW4-4 ON)Output/Input Functions
TB141A (Output)SymbolOUT1OUT2OUT3OUT4
FunctionOperation ON/OFFDefrostCompressorError signal
Outputs the ON/OFF signal Outputs the Defrost signal Outputs the Compressor signalOutputs the Error signal
TB142C (Input)SymbolCOM+IN5 IN6 IN7
IN8 ❈
FunctionCommonHot water/HeatingHeating ECOAnti-freezeCooling
Common wiringHot water operationOutlet water temp. will automatically change based on ambient temp. Unit will atutomatically maintain set water temp.Cooling operation
TB142B (Input)Symbol
IN3IN4
FunctionConnection demandOperation ON/OFF
Mandatory STOP with demand input ONFor external ON/OFF operation.
Analog inputSymbolCN421CN422
FunctionSet water temperatureSet water temperature
Capable with accessory connectorCapable with accessory connector
TB142A (Input)Symbol
IN1 FunctionPump interlock No setting when shipped from factory. ON=in operation. OFF=invalid.
❈ HEX unit only
❈ CN421 priority
Set temp.
Ta12Ta11
Tf11
Tf12
oudoor temp.
Booster/Hex unit icon shown on AG-150A and TG-2000A screen
Possible to change by remote controller <PAR-W21MAA>
Remote Controller : PAR-W21MAA
Initial setting
Tf11
Tf12
Ta11
Ta12
30˚C40˚C
0˚C10˚C
Measurement point of Water Temp. is available to choose by Dip SW1-1
Control Box
Water Pump
Strainer
Pump interlockOperation signal
Broken lines are fieldsupply products.
Water temperature is changeable by remote controller <PAR-W21MAA>
Heating ECO is for energy saving.When this function is effective, outlet water temp. will automatically change based on ambient temp. Contribute to energy saving by controlling capacity especially in cases where ambient temp. is high and there is low demand for hot water or heating.
Anti freeze mode is to prevent water pipe from freezing.When this function is effective, the un i t w i l l au tomat ica l ly maintain set water temp. (Field supply control board for water pump operation necessary.)
11 12
ON/OFF Runs and stops the operation of a group of unitsSwitches between Hot Water / Heating / Heating ECO / Anti-freeze / Cooling
Operation mode switching ❈ Available operation modes vary depending on the unit to be connected. ❈ Switching limit setting can be made via a remote controller.
Temperature can be set within the ranges below. (in increments of 1˚C or 1˚F)Hot Water 30 / 35 / 40 / 45˚C min. ~ 30 ~ 70˚CHeating (in increments of 1˚C or 2˚F)
Water temperature settingHeating ECO Temperature within the following range can be set depending on the outside air
temperature. 30˚C min. ~ 45˚C max.Anti-freeze 10˚C min. ~ 45˚C max. (in increments of 5˚C or 10˚F)Cooling 10˚C min. ~ 30˚C max. (in increments of 5˚C or 10˚F)
❈ The settable range varies depending on the unit to be connected.Preset temperature range limit Preset temperature range setting can be limited via a remote controller.
10˚C min. ~ 90˚C max.Water temperature display (in increments of 1˚C or 1˚F)
❈ The settable range varies depending on the unit to be connected.
Permit / Prohibit Individually prohibits operations of each local remote control function :ON/OFF, Operation modes,
local operationwater temperature setting, Circulating water replacement warning reset.❈ Upper level controller may not be connected depending on the unit to be connected.
Weekly schedulerON / OFF / Water temperature setting can be done up to 6 times one day in the week.(in increments of a minute)
Error When an error is currently occurring on a unit, the afflicted unit and the error code are displayed.Self check (Error history) Searches the latest error history by pressing the CHECK button twice.
Test runEnables the Test run mode by pressing the TEST button twice.❈ Test run mode is not available depending on the unit to be connected.
Circulating waterDisplays the circulating water replacement warning via the unit message.
replacement warningClears the display by pressing the CIR.WATER button twice.❈ Circulating water replacement warning is not available depending on the unit to be connected.
Language settingThe language on the dot matrix LCD can be changed. (Seven languages)English/German/Spanish/Russian/Italian/French/SwedishRemote controller operation can be locked or unlocked.
Operation locking function ·All-switch locking ·Locking except ON/OFF switch
Item Description Operations Display
The unit must be installed inside a building. The unit is not designed for outdoor installation.
For water pipes, do NOT use steel pipes. Copper pipes are recommended.
Do not touch the unit, the unit surface can be hot.
Back up system is recommended in case of PWFY unit breakdown.
Drain pipeInstall the drain pipe with an inclination of between 1/100 and 1/200 to provide a downward flow of drain water.For cold climate installation, take an appropriate measures (e.g., drain heater) to prevent the drain water from freezing.
StrainerInstall a strainer near the PWFY unit to keep foreign materials from entering the water-side heat exchanger.
Unit [mm]
Piping space (right side)
PWFY
Service space
Top view
Installation image
Example of Water pipe installation
Wall mounted Ceiling Suspended
Floor standing
Counter flow water circuit Parallel flow water circuit
We have no regulation for water flow way. Therefore customers can choose either counter flow or parallel flow due to their demand.
PWFY
PWFY
PWFY
PWFY
13 14
400525
300Hot-blastup to 55°C
600Service space (front side)
* Note: If any medicinal substance is used for Heating (AHU, FCU, Floor Heating, etc), part the water circuit for sanitary use.
Installation4-1
Water-side heat exchanger
Solid arrows in the figure indicate the direction of water flow.
Sample of water circuit for HWS/ATW
PWFY Field supply
Tank Outlet
Inlet
Mains waterWater overflow
Roof
To drain outlet
P
P
T
T
P
PURY-P400YHM-A
BC controller
Cold Water Tank
Cold Water Tank
Hot Water Tank
Cold Water Tank
Hot Water Tank Hot Water Tank
Water Supply
Water Supply
For Cooling(AHU, FCU, etc)
For Heating(AHU, FCU, Floor Heating, etc)
For Sanitaty use(Shower, Bath, etc)
R2
PWFY-P100VM-E-BU PWFY-P100VM-E-BU PWFY-P100VM-E-AU PEFY-P32VMR-E-R PEFY-P63VMS1-E
Mitsubishi Electric Rotary compressors
What kinds of compressors are used in Booster unit?Q1
Booster unit:35˚C-70˚C (95F-158F)
HEX unit :30˚C-45˚C (86F-113F) (Heating)
HEX unit :10˚C-30˚C (50F-86F) (Cooling)
What is the temperature range on controller for heating?Q2
1.0MPa (Maximum range)
What is the hydraulic pressure?Q3
Water pumps are field supplied and need to be selected depending on field system.
Is the water pump embedded?Q4
Booster units and HEX units operate on high COP with heat recovery function (with
R2 system). Booster unit is able to supply high temperature hot water up to 70˚C
without electric heater.
What are the new technologies?Q6
Anti-freeze mode (Dip SW3-4 ON) to prevent water pipe from freezing. When Anti-
freeze mode is effective, the unit will sustain set water temperature. The field supply
control board for water pump interlock is necessary.
What is Anti-freeze?Q7
Heating ECO (Dip SW4-3 ON) is an energy saving function. When this mode is
effective, the outlet water temperature will automatically change based on ambient
temperature.
What is heating Eco?Q8
Remote controller specifications
What are the functions with the controllers?Q10
Short circuiting of TB142A will start the unit
and opening of circuit will stop operation. (non-
voltage A contact)
How do you interlock the pumps?Q5
IN1
TB142A
Q9External analog input
Method Input T(A), T(B)4mA :T(A)
20mA:T(B)
What is external analog input?
S/W default
T(A)=10˚C T(B)=70˚C.
*All setting with a controller.
T(B)˚C
T(A)˚C
4mA 20mAla
ON/OFF
Operation mode switching
Water temperature setting
Preset temperature range
Water temperature display
Permit / Prohibitlocal operation
Weekly scheduler
Error
Self check (Error history)
Test run
Circulating waterreplacement warning
Language setting
Operation locking function
Runs and stops the operation of a group of unitsSwitches between Hot Water / Heating / Heating ECO / Anti-freeze / Cooling* Available operation modes vary depending on the unit to be connected.* Switching limit setting can be made via a remote controller.Temperature can be set within the ranges below. (in increments of 1˚C or 1˚F)Hot Water 35˚C min. ~ 70˚C max. (in increments of 1˚C or 2˚F)Heating 30˚C min. ~ 45˚C max. (in increments of 1˚C or 2˚F)Anti-freeze 10˚C min. ~ 45˚C max. (in increments of 1˚C or 1˚F)Cooling 10˚C min. ~ 30˚C max. (in increments of 1˚C or 1˚F)* The settable range varies depending on the unit to be connected.Preset temperature range setting can be limited via a remote controller.10˚C min. ~ 90˚C max. (in increments of 1˚C or 1˚F)* The settable range varies depending on the unit to be connected.Individually prohibits operations of each local remote control function :ON/OFF, Operation modes,water temperature setting, Circulating water replacement warning reset.* Upper level controller may not be connected depending on the unit to be connected.ON / OFF / Water temperature setting can be done up to 6 times one day in the week.(in increments of a minute)When an error is currently occurring on a unit, the afflicted unit and the error code are displayed.Searches the latest error history by pressing the CHECK button twice.Enables the Test run mode by pressing the TEST button twice.* Test run mode is not available depending on the unit to be connected.Displays the circulating water replacement warning via the unit message.Clears the display by pressing the CIR.WATER button twice.* Circulating water replacement warning is not available depending on the unit to be connected.The language on the dot matrix LCD can be changed. (Seven languages)English/German/Spanish/Russian/Italian/French/SwedishRemote controller operation can be locked or unlocked.. All-switch locking . Locking except ON/OFF switch
Item Description Operations Display
Conversion equation:To=[{T(B) - T(A)}/16] ✕ Ia + [ T(A) - {T(B) - T(A)}/4] To: set temperature, Ia: analogue input value (mA)
Calculation example: T(A)=30˚C, T(B)=70˚C, Ia=10mAConversion equation: To=2.5 ✕ Ia+20 To=45˚C
Changeable with PAR-W21MAA
15 16
Q & A5-1 Q & A5-1Booster unit/HEX unit Specification and function Booster unit/HEX unit Specification and function
Even when the outdoor temperature is low, water temperature of supplied hot water
will not decrease.
Will the temperature of the hot water decrease during winter?Q13
What is the connectable capacity when connecting with standard indoor units? And what is the temperature range of operation for outdoor units?
Q16
R2 outdoor units have a stronger tolerance for high-pressure error when heating
compared to Y series.
Even if the total connectable capacity is 100% or more, PWFY is only connectable
within 100%.
OK R2 + (PWFY: 100%) + (Standard indoor units: 50%) = 150% NG R2 + (PWFY: 130%) + (Standard indoor units: 20%) = 150%
Why can the R2 outdoor units operate at an outdoor temperature of 32˚C when connecting with Booster unit ?
Q17
Yes, it will be shown on the controller display.
In case of malfunction, will the controller show an error?Q14
Yes, it can be connected to the standard indoor models.
Can HEX unit/Booster unit be connected to standard indoor units?Q15
Booster unit :10˚C~70˚C
HEX unit :10˚C~40˚C (Heating) 10˚C~35˚C (Cooling)
What is the water temperature operation range?Q12
Ambient (outdoor) temperature range of heating mode for PWFY combination (WB)
R2 seriesY series
-20~32˚C-20~15.5˚C
-20~15.5˚C-20~15.5˚C
BU, AUAU
-20~32˚C (*1)-20~15.5˚C
Only PWFY PWFY with standard indoor units
Only standardindoor units
ConnectablePWFY type
Connectable outdoor unit capacity range for PWFY combination (WB)
R2 seriesY series
50~100%50~100%
50~150%50~130%
BU, AUAU
50~150%50~130%
Only PWFY PWFY with standard indoor units
Only standardindoor units
ConnectablePWFY type
Refrigerant circuit
CompressorSolenoid valveCheck valveLinear expansion valveStrainerPipesSensor (Temperature sensor, Pressure sensor)Pressure switchDrain panElectronic board
20,000 hours20,000 hours20,000 hours20,000 hours20,000 hours20,000 hours
5 Years25,000 hours
8 Years25,000 hours
Components Replacement cycle
Outdoor unit will change its software to PWFY connection version automatically when PWFY is connected.R2 series allows a higher temperature range than Y series, the reason is that R2 has an effective heat exchanger bypass circuit against high-pressure error.(*1) Some cooling operated by standard indoor units is necessary against high-pressure error, if standard indoor units are to be worked near the high temperature range (32˚C or less).
Refer to the table below for the maintenance schedule.
Replacement cycle may be shortened depending on the usage.
What is the durability of Booster unit and HEX unit?Q11
Water circuit
StrainerWater pipe Water-side heat exchangerRefrigerant-side heat exchanger
10 Years20,000 hours
5 Years5 Years
17 18
Q & A5-1 Q & A5-1Booster unit /HEX unit Specification and function Booster unit /HEX unit Specification and function
The HEX unit/Booster unit can only be installed indoors.
Are there any regulations to installation location?Q1
Controller: Possible with MA wiring.
Output: Possible with setting sequence relay on site.
Is it possible to operate a multiple number of units at the same time?
Q2
Yes. For condensation caused by inlet water temperature.
Is a drain pipe required?Q3
No. Ground water, rain, and sea water cannot be used.
Is it possible to use ground water?Q4
The water circuit must be a closed circuit. (to prevent scaling of pipes, heat
exchanger etc. )
Can a unit be directly connected to mains water?Q5
Copper, stainless steel, polybuten and polyethylene water piping can be used. (it
must withstand 90˚C). Steel piping cannot be used.
If there is a possibility of steel usage in existing equipment, be sure to part the water circuit.
What materials are used for water piping?Q6
For maintenance, sales offices will be able to handle replacements of functional
parts (compressor, heat exchanger, valves). Please refer to the Parts List.
What is a recommended maintenance schedule?Q7
No, we do not recommend hot water for drinking.
The hot water is circulating and not supplied for drinking purposes.
Is the hot water suitable for drinking?Q8
Do not group Booster unit and HEX unit together.
What are the considerations when setting address?
19 20
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HEX
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Booster
Q & A5-2Booster unit/ HEX unit Installation and service
5-2 Q & A Booster unit/ HEX unit Installation and service
Q9
It is best for facilities that require a large amount of hot water such as, healthcare
facilities, hotels, hospitals, sports facilities (gyms, golf courses) and restaurants.
What applications are suitable?Q1
Hotels, healthcare facilities, and hospitals: 10-20 people/unit.
* It varies depending on the purposes. Refer to “2-3 Selecting a model” section for
calculation.
How many people can the unit provide hot water for?Q2
Yes, it can be used for both applications.
Can it be used for air conditioning and space heating?Q3
Because of the high efficient heat pump and heat recovery technology.
Why is the running cost low?Q4
Booster unit and HEX unit COP is 3.0 or more and therefore the running cost is 1/3
compared to electric heaters.
What is the difference between ATW Booster unit & HEX unitand electric heaters.
Q5
21
Q & A5-3SalesQ & A
For Internal Training
Sales / Technical Guide
Air to Water Booster unit Air to Water HEX unit
MEE08K021New publication effective Sep. 2008
Specifications subject to change without notice
http://Global.MitsubishiElectric.com
Certificate Number EC97J1227
The Air Conditioning & Refrigeration Systems Works acquired environmental management system standard ISO 14001 certification.
The ISO 14000 series is a set of standards applying to environmental protection set by the International Standard Organization (ISO).
FM 33568 / ISO 9001;2000
The Air Conditioning & Refrigeration Systems Works acquired ISO 9001 certification under Series 9000 of the International Standard Organization (ISO) based on a review of Quality , management for the production of refrigeration and air conditioning equipment.
ISO Authorization SystemThe ISO 9000 series is a plant authorization system relating to quality management as stipulated by the ISO. ISO 9001 certifies quality management based on the "design, development, production, installation and auxiliary services" for products built at an authorized plant.
AIR CONDITIONING SYSTEMS