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Air to Air Heat Exchanger with DX Coil Unit

Installation Manual

EN

Air to Air Heat Exchanger with DX Coil Unit

Installation Manual

14

Fan Characteristics

◆

MMD-VNK502HEXE

Standard air volume: 500m

3

/h, Lower limit air volume: 330m

3

/h, Upper limit air volume: 600m

3

/h

◆

MMD-VN502HEXE

Standard air volume: 500m

3

/h, Lower limit air volume: 330m

3

/h, Upper limit air volume: 600m

3

/h

50Hz 230V

60Hz 220V

50Hz 230V

60Hz 220V

0

100

200

300

400

500

0

200

400

600

800

-2.0

-1.0

0.0

1.0

2.0

3.0

External static pr

essure

 (Pa)

Air volume (m

3

/h)

Curr

ent (A)

Low

High

Extra 

High

Low

High

Extra High

0

100

200

300

400

500

0

200

400

600

800

-2.0

-1.0

0.0

1.0

2.0

3.0

External static pr

essure

 (Pa)

Air volume (m

3

/h)

Curr

ent (A)

Low

High

Extra 

High

Low

High

Extra High

0

100

200

300

400

500

0

200

400

600

800

-2.0

-1.0

0.0

1.0

2.0

3.0

Exter

nal static pressure (

P

a

)

Air volume (m

3

/h)

C

urren

t (A)

Low

High

Extra High

Low

High

Extra High

0

100

200

300

400

500

0

200

400

600

800

-2.0

-1.0

0.0

1.0

2.0

3.0

Exter

nal static pressure (

P

a

)

Air volume (m

3

/h)

C

urren

t (A)

Low

High

Extra High

Low

High

Extra High

◆

MMD-VNK802HEXE

Standard air volume: 800m

3

/h, Lower limit air volume: 480m

3

/h, Upper limit air volume: 960m

3

/h

◆

MMD-VN802HEXE

Standard air volume: 800m

3

/h, Lower limit air volume: 480m

3

/h, Upper limit air volume: 960m

3

/h

50Hz 230V

60Hz 220V

50Hz 230V

60Hz 220V

0

100

200

300

400

500

0

200

400

600

800

1000

1200

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

External static pr

essur

e (Pa)

Air volume (m

3

/h)

Curr

ent (A)

Low

High

Extra High

Low

High

Extra High

0

100

200

300

400

500

0

200

400

600

800

1000

1200

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

External static pr

essur

e (Pa)

Air volume (m

3

/h)

Curr

ent (A)

Low

High

Extra High

Low

High

Extra 

High

0

100

200

300

400

500

0

200

400

600

800

1000

1200

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

Exter

nal static pressure (

P

a

)

Air volume (m

3

/h)

C

urren

t (A)

Low

High

Extra High

Low

High

Extra 

High

0

100

200

300

400

500

0

200

400

600

800

1000

1200

-6.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

Exter

nal static pressure (

P

a

)

Air volume (m

3

/h)

C

urren

t (A)

Low

High

Extra High

Low

High

Extra High

43-EN

44-EN

Содержание MMD-VN1002HEXE

Страница 1: ...Coil Unit Model name Model with a humidifier MMD VNK502HEXE MMD VNK802HEXE MMD VNK1002HEXE MMD VNK1002HEXE2 Model without a humidifier MMD VN502HEXE MMD VN802HEXE MMD VN1002HEXE MMD VN1002HEXE2 Installation Manual 1 English Installation Manual For commercial use ...

Страница 2: ...n individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to these operations The qualified installer who is allowed to do the electrical work involved in installation relocation and removal has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations and he or she is a person who has been trained in ...

Страница 3: ...ns and from heat Failure to wear this protective gear may result in burn Before carrying out the installation maintenance repair or removal work be sure to set the circuit breaker for the Air to Air Heat Exchamger Unit to the OFF position Otherwise electric shocks may result Place a Work in progress sign near the circuit breaker while the installation maintenance repair or removal work is being ca...

Страница 4: ...reezing Otherwise the solenoid valve or pipes are damaged and water leakage may result Do not install the unit in a place where the outside temperature especially around the unit or the air grill falls below 0 C Otherwise water in the pipes in the humidifying element or in the solenoid valve freezes and a breakdown or water leakage may result If the ducts pass through a fire protection zone use a ...

Страница 5: ...ools are required for the new refrigerant R410A For connecting pipes use new and clean piping designed for R410A and please care so that water or dust does not enter To Disconnect the Appliance from Main Power Supply Means for disconnection having a contact separation in all poles at least 3 mm must be incorporated in the fixed wiring in accordance with the wiring rules The installation fuse All T...

Страница 6: ...eiling cavity Place exposed to air with high salt content seaside area Place exposed to large quantities of sulfide gas hot spring Should the unit be used in these places special protective measures are needed A restaurant kitchen where a lot of oil is used or place near machines in a factory Oil adhering to the heat exchanger and resin part turbo fan in the indoor unit may reduce the performance ...

Страница 7: ... the saturation curve before using the unit Do not install the unit near a water heater A B C C B Dry bulb temperature C Absolute humidity kg kg S a t u r a t i o n C u r v e 5 Installation of Indoor Unit WARNING Install the air conditioner at enough strong place to withstand the weight of the unit If the strength is not enough the unit may fall down resulting in injury To provide against strong w...

Страница 8: ...198 103 X Y Z Installing the indoor unit Attaching the duct connector Attach 4 duct connectors to the unit using the six screws supplied for each connector Attaching the washers and nuts 1 Procure the hanging bolts nuts and washers locally 2 Attach the washers and nuts to the hanging bolt M12 as shown in the figure on the right Fixing the unit 1 Fit the hanging bracket on the hanging bolt then adj...

Страница 9: ...fier CAUTION Install the water supply pipes after washing the inside of them with water Install a drain valve on the water supply pipe then drain the water until the drained water runs clear Do not to allow cutting fluid or detergent to enter the pipes The water quality of the humidifiers supply water should meet public waterworks standards and have a hardness less than 100mg ℓ If the supply water...

Страница 10: ...od is used do not attach the hood to a place where rain may fall directly In this case using a rectangle hood is recommended Stuff the cracks in the pipe penetration part with a noncombustible material such as mortar 1 Excessive bending 2 Multi times bending 3 Making the connecting duct smaller 4 Bending near the exhaust air duct Heat insulator Insulates the adapter and the aluminium tape Outside ...

Страница 11: ...e is not performed properly If the indoor unit should be turned on perform vacuuming from both the liquid side and the gas side Opening the valve fully Open the valves of the designated outdoor unit fully Outer dia of copper pipe A 0 0 4 In case of flaring for R410A with the conventional flare tool pull it out approx 0 5 mm more than that for R22 to adjust to the specified flare size The copper pi...

Страница 12: ...r with DX Coil Unit 1 Power supply Wiring for the power supply Air to Air Heat Exchanger with DX Coil Unit VNK502HEXE VN502HEXE VNK802HEXE VN802HEXE I phase 50Hz 220 240V I phase 60Hz 220V Current rating Fuse rating of circuit breaker switch for indoor units should be selected by the accumulated total current values of the indoor units cable 3 core 2 5 mm2 in conformity with Design 60245 IEC66 VNK...

Страница 13: ...emote controller sold separately Indoor control circuit board MCC1615 Connector White Connector Black External output 220 240V under 1A each 5 External input sold separately No voltage a contact input Voltage DC 12V 24V input Operation output White White Red Connector White 6 Yellow Connector Red 6 White Red Red Red Blue Orange Red Blue Orange White Yellow Blue Purple Red 1 Common 2 Remote control...

Страница 14: ...ock R L S N Operation output Common External damper output 3 4 Abnormal Bypass mode output 3 5 Cord clamp 40 60 10 10 R L S N Earth wire Wiring for the remote controller Wiring between indoor and outdoor unit Earth Screw 2mm or less Power supply wire Remote control wiring Wiring diagram Use a 0 5mm2 to 2mm2 wire Address setting Refer to the Installation Manual of the outdoor unit for address setti...

Страница 15: ...u cannot change the ventilation FAN speed or ventilation mode If two remote controllers are used the latter operation overrides the former and their indications always reflect the result of the latter operation B Air to Air Heat Exchanger with DX Coil Unit system linked with air conditioners You can use the remote controller to ON OFF running Air conditioners and Air to Air Heat Exchanger with DX ...

Страница 16: ...stop only the Air to Air Heat Exchanger with DX Coil Unit in the system using NRC 01HE For this operation it is necessary to change the settings Setting modifications are required for separate control Refer to 13 Advanced Control on page 20 When the Air to Air Heat Exchanger with DX Coil Unit system linked with indoor air conditioners is used set the Air to Air Heat Exchanger with DX Coil Unit as ...

Страница 17: ...at Exchanger with DX Coil Unit Remote ON OFF adapter NRB 1HE locally procured 1 2 DC12V DC24V non polarity CN706 Blue 1 Orange 2 2m 2 When the output signal of the external device is a no voltage a contact static signal Transmission wire used to extend must be locally procured Non polarity shielded wire H05 VVC4V5 K or 60227 IEC 74 0 5mm2 Maximum length 50m Insert the remote ON OFF adapter NRB 1HE...

Страница 18: ...y procured Adapter for remote ON OFF control NRB 1HE CN705 Control circuit board of the Air to Air Heat Exchanger with DX Coil Unit SW1 Low is applied when SW2 is closed and High when it is open As these terminals are not used insulate them 1 3 No voltage a contact Yellow 2 Red 3 White 4 Green 1 Black 5 2m 4 Connecting an auxiliary fan or monitoring operation output External Output Connect to the ...

Страница 19: ...ions on the outdoor interface circuit board While the automatic addresses are being set up no remote controller operations can be performed Setup takes up to 10 minutes usually about 5 minutes When the power is turned on after automatic address setup It takes up to 10 minutes usually about 3 minutes for the outdoor unit to start operating after the power has been turned on Before the Air to Air He...

Страница 20: ...Low EA High active High may be Extra High 0000 Normal Adjusting this setting is necessary for all the Air to Air Heat Exchanger with DX Coil Units in the group 4C Nighttime heat purge 0000 Invalid 0001 0048 Start after Setting value x 1 hour s Setting for the time before the nighttime heat purge operation starts 0000 Nighttime heat purge OFF Adjusting this setting is necessary for all the Air to A...

Страница 21: ...ault Valid VENT Setting of the unbalanced ventilation Fan speed SA EA unbalanced operation of the Air to Air Heat Exchanger with DX Coil Unit is possible Use the button of the remote controller Adjust this setting for all the Air to Air Heat Exchanger with DX Coil Units when group operation is applied Though RBC AMT32E cannot be used this setting can still be changed For details refer to Ventilati...

Страница 22: ... to Air Heat Exchanger with DX Coil Unit to which an external device is connected Select ED in step 3 Select a value from the table below in step 4 Contact is off during switching the damper Heat exchange mode Bypass mode regardless of the selected value Abnormal signal bypass mode signal output setting Terminals 3 to 5 for external output can be used to detect an abnormal signal bypass mode signa...

Страница 23: ...1 0 0 0 1 0 2 0 3 0 External static pressure Pa Air volume m3 h Current A Low High Extra High Low High Extra High MMD VNK802HEXE Standard air volume 800m3 h Lower limit air volume 480m3 h Upper limit air volume 960m3 h MMD VN802HEXE Standard air volume 800m3 h Lower limit air volume 480m3 h Upper limit air volume 960m3 h 50Hz 230V 60Hz 220V 50Hz 230V 60Hz 220V 0 100 200 300 400 500 0 200 400 600 8...

Страница 24: ... or more exists between the terminal block of the power supply and the earth earthing If resistance of less than 1 MΩ is detected do not run the unit 2 Check all valve of the outdoor unit being opened fully To protect the compressor at activation time leave power ON for 12 hours or more be for operating Do not press the electromagnetic contactor to forcibly perform a test run This is very dangerou...

Страница 25: ... result CAUTION Wear protective gloves when performing maintenance Otherwise an injury may result Maintenance of the filter and heat exchanger element Filter maintenance Clean the filter once or twice a year 1 Clean the filter if is indicated on the remote controller 2 Press the button after cleaning the filter The indicator disappears 1 Open the inspection cover Enter the ceiling cavity remove th...

Страница 26: ...them the heat exchanger elements will become clogged and a breakdown may result 3 Attach the inspection cover Fit the fixing lever to the inspection cover to attach it securely and fix the fixed part of Inspection cover with a screw Cleaning remote controller Wipe with a dry soft cloth Do not use benzine thinner scouring powder chemical cloth etc as those may cause deformation or breakage Maintena...

Страница 27: ...ification element then detach the tube 3 MMD VNK802 MMD VNK1002 Pull the back humidification element to detach NOTE Drain water remaining in the humidification element into the drain pan Do not bend fold or pull the water supply tube Washing the humidification element Wash away dust and dirt from the humidification element by putting the element in a bucket of water Move the element in the bucket ...

Страница 28: ...th DX Coil Unit the check code and the indoor unit No appear on the display part of the remote controller The check code is only displayed during the operation If the display disappears operate the Air to Air Heat Exchanger with DX Coil Unit according to the following Confirmation of error log for confirmation Confirmation of error log When an error occurred on the Air to Air Heat Exchanger with D...

Страница 29: ...lower indoor unit Indoor E19 E19 00 No center unit 02 2 or more center units 96 Error with the number of center outdoor units I F E20 E20 00 Connecting outdoor unit to another system 01 Connecting indoor unit to another system 42 Connected to another system during automatic addressing I F E21 E21 00 No header unit 01 Duplicated header units 42 Error with the number of header thermal storage units ...

Страница 30: ... P05 01 Phase loss detected 02 Phase order error AF Phase loss is detected or phase order error I F Wired remote controller display Error code Error code name Judging device 7 segment display on the outdoor unit AI NET central controller display Auxiliary code Problems detected by TCC LINK central remote controller P07 P07 01 Compressor 1 side 02 Compressor 2 side 1C Heat sink overheat IPDU I F P0...

Страница 31: ...may be Extra High High may be Extra High Indoor unit Indoor unit Indoor unit Indoor unit Model name Model name Model name Model name Check the addresses of the indoor units For details see Advanced control in this manual Code 12 for the system 13 for indoor units and 14 for groups Line Indoor Group Line Indoor Group Line Indoor Group Line Indoor Group Settings Settings Settings Settings Did you ch...

Страница 32: ...n is running 0000 0001 0002 0003 0004 No change ON during normal operation ON during normal operation or the nighttime heat purge operation ON during the nighttime heat purge operation ON when the SA fan is running ON when the EA fan is running 0000 0001 0002 0003 0004 No change ON during normal operation ON during normal operation or the nighttime heat purge operation ON during the nighttime heat...

Страница 33: ...ti air conditioners is 0 3kg m3 NOTE 1 If there are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device For the amount of charge in this example The possible amount of leaked refrigerant gas in rooms A B and C is 10kg The possible amount of leaked refrigerant gas in rooms D E and F is 15kg NOTE 2 The standards ...

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