VN-250TE VN-350TE VN-500TE VN-800TE VN-1KTAE
Contents
1. Yentiaion Tobeprocured 1111 C73 locally bay d To find out the function L of each switch EI H L ai a 11 Third main body country concerned Follow the following steps for wiring Unfasten two cover fixing screws of the electrical equipment box open the box cover and then connect wiring firmly Fit the cables from the terminal firmly with a cord clamber Use the polyvinyl chloride insulated and sheathed cables for fixed wiring having 1 6 mm to 2 0 mm in diameter or 2 0 mm to 3 1 mm in conformity with IEC 60227 4 Carry out the work based on the laws regulations and technical standards of the 220 240V 50Hz VN 800TE 550y 60Hz VN 1KTAE 220 240V 50Hz Capacitor VN 800TE 8 0uF 450VAC VN 1KTAE 10 0uF 450VAC Ring terminal Secure wire Stranded wire When you need much airflow or a duct is long change the wire connection from High to Extra High Unfasten two cover fixing screws of the electrical equipment box and open the box cover e Change CN6 to CN5 and 8 to CN7 inside the Electric Parts Lid It is possible to operate up to 10 units from one switch set Switching Connector CN8 CN8 Cover fixing screws of the Electric Parts Lid Electric Parts Lid Use the power source corresponding to the name plate Using a different power source may cause the mot2. c o o 2 c VN 500TE 800 gt 50Hz 220 240V 60Hz 220V Extra Extra Extra Extra Current A me nep em ome me m om m 50Hz 188 214 169 188 151 166 184 210 161 182 145 164 316 347 309 329 302 327 309 337 300 325 297 316 Power consumption W Air volume Static pressure pa 33 34 31 32 25 26 34 35 32 33 26 5 27 5 38 39 36 5 37 5 32 34 38 5 39 5 37 38 33 35 Noise dB me 5 m i i ms mein Temp exchange rate me In P In cooling Frame Zinc iron plate 4 pole capacitor dielectric motor E type Heat exchanger Combustion proof sheet Characteristics Enthalpy exchange rate c 0 Nonwoven fabric Collection effect weighing method 82 Adapter Zinc iron plate Mounting pipe diam 2200 2250 dul mm 904 x 962 x 270 884 x 1322 x 388 Length x Width x Height 4 Corrugated board package ventilator Dimension Length x Width x Height mm 335 x 1218 x 1100 453 x 1538 x 1075 x Installation Manual 1 Owner s Manual 1 lt VN 1KTAE gt BEEN KNEE eme s s 1 dT ighi 9 o e Z o External dimen
3. Nu 9 Dee 10 100 1 EUN Ceiling Suspension Fixture 4 32 Electric Parts Lid 1 Note Model VN 1KTAE has one Heat Exchange N Applicable Duct Moder Nominal Diameter 9 2250 Unit mm Model B C e F G H 1 K L a em 6 WIRING DIAGRAM VN 250TE VN 350TE 500 gt Exhaust Air Fan Supply Air Fan Capacitor Capacitor Orange Yellow Blue Low Power Source E cx Divide the power lines running SAFM 1 2 to the switch and the main unit On the product do not attach more then one cable to each terminal LINE E modei Power Source P 0 220 240V 50Hz pn T VN 350TE 220 60 2 Bless VN 500TE Operation Switch V 1 0 OFF Lo 3 2 1 M a is Air Flow Switch COMMON 8 High o 5 a 4 Low F DAMPER Function Select Switch LILE 5 Heat Exchange s bo procured find cut the fun E Capacitor To find out the function locally V Capacitor of each switch VN 250TE 2 0uF 450VAC OK e
4. VN 250TE 350 gt atin 2 2 Rating 50Hz 220 240V 60Hz 220V Extra Extra Extra I 50Hz 048 05 0 46 0 48 0 37 0 39 0 47 0 5 0 46 0 48 0 37 0 39 0 63 0 65 0 59 0 6 0 56 0 57 0 61 0 63 0 57 0 6 0 54 0 56 50Hz 04 116 99 114 79 90 103 119 98 114 79 90 137 154 124 137 117 128 133 151 119 132 113 125 Power consumption W Air volume m s n Static pressure pa m s 27 08 26 27 21 22 27 28 26 5 27 5 21 5 22 5 31 32 29 30 25 26 31 32 30 31 26 27 Noise e 2 ms as x me 5 5 se si Temp exchange rate 5 In heating e e In cooling me os 4 pole capacitor dielectric motor E type Heat exchanger Combustion proof sheet Nonwoven fabric Collection effect weighing method 82 Mounting pipe diam mm 0150 External dimension Length x Width x Height mm 599 x 882 x 270 804 x 882 x 270 Shape Corrugated board package ventilator Dimension Length x Width x Height mm 335 x 1138 x 795 335 x 1138 x 1000 Accessory Installation Manual 1 Owner s Manual 1 B Characteristics Enthalpy exchange rate 76
5. Motor damper Damper Connector assembly Connection failure Incorrect connection Wire disconnection Contact failure Motor revolution section Bearing is locked Motor winding or temp fuse is disconnected Turning section of fan sirocco is locked Capacitor trouble Relay trouble Abnormal power 15 applied Miswiring Electromagnetic sound Buzzing of motor Bearing failure Incomplete attachment of fan sirocco Suction of foreign matter Deformed fan sirocco Loosening of screw Resonance due to incom plete tightening Clogging ot filter Clogging of heat exchanger Capacitor failure Contact failure Contact failure Winding of motor damper is disconnected Catching at sliding section Contact failure 24 9 HOW TO DIAGNOSE THE TROUBLE Replace wall switch Correct connection Replace motor fan Connect surely Assembly of electric parts stool Fan Replace motor fan Remove locked part Replace capacitor Replace relay Check power supply Re wire according to the wiring diagram Replace motor fan Attach fan sirocco firmly Remove foreign matter Replace fan sirocco Tighten screw firmly Clean filter Clean heat exchanger Replace capacitor Ensure contact Ensure contact Replace motor damper Correct catching Replace connector assembly 10 HOW TO REPLACE THE MAIN PARTS WARNING Be sure to turn off the power supply
6. VN 350TE VN 500TE Damper Ass y VN 800TE Damper Ass y VN 1KTAE Motor Damper 220 240 Motor Fan 220 240 50 60Hz VN 250TE Location No 41150976 41150977 41150978 41150979 41170448 41179476 41179477 41179478 41179479 41179480 41112561 41170449 41170450 41112593 41112594 41112595 41116889 41116890 41116891 41116892 41116893 41185497 41185498 41185499 41185500 41198478 41198479 41198480 41198481 41198482 Panno Descripton Motor Fan AC 220 240 50 60Hz VN 350TE Motor Fan 220 240V 50 60Hz VN 500TE Motor Fan AC 220 240V 50 60Hz VN 800TE Motor Fan AC 220 240V 50 60Hz VN 1KTAE Switch Limit Wire Ass y VN 250TE Wire Ass y VN 350TE Wire Ass y VN 500TE Wire Ass y VN 800TE Wire Ass y VN 1KTAE Lid Electric Parts Board Ass y VN 250TE VN 350TE VN 500TE Board Ass y VN 800TE VN 1KTAE Thumbscrew Lid Maintenance VN 250TE VN 350TE VN 500TE Lid Maintenance VN 800TE VN 1KTAE Name Plate VN 250TE Name Plate VN 350TE Name Plate VN 500TE Name Plate VN 800TE Name Plate VN 1KTAE Owner s Manual Installation Manual Wiring Diagram VN 250TE VN 350TE VN 500TE Wiring Diagram VN 800TE VN 1KTAE Packing VN 250TE Packing VN 350TE Packing VN 500TE Packing VN 800TE Packing VN 1KTAE TOSHIBA CARRIER CORPORA
7. the main unit If the ventilator is operated with the normal ventilation in the winter season the surface of the main unit is cooled with the outdoor air resulting in dew condensation on the surface 20 13 EXPLODED VIEWS AND PARTS LIST 28 29 30 31 32 28 29 30 31 32 fX X NN 23 24 25 26 54 55 56 57 5 To 11 12 13 14 15 45 46 47 48 49 52 53 30 41120433 41120434 41118431 41118432 41118448 41114829 41114830 41114831 41114840 41120445 41114833 41114834 41114835 41114845 41114846 41118433 41118451 41171265 41171266 41171267 41171268 41171269 41118531 41118532 41118533 41118534 41179475 41150975 Location Description No i Fan Sirocco VN 250TE VN 350TE Fan Sirocco VN 800TE VN 1KTAE Adaptor VN 250TE VN 350TE Adaptor VN 500TE Adaptor VN 800TE VN 1KTAE Heat Exchanger VN 350TE Heat Exchanger VN 250TE Heat Exchanger VN 500TE Heat Exchanger VN 800TE VN 1KTAE Fan Sirocco VN 500TE Filter VN 250TE Filter VN 350TE Filter VN 500TE Filter VN 800TE Filter VN 1KTAE Nut Dome Cap VN 250TE VN 350TE VN 500TE Nut Dome Cap VN 800TE VN 1KTAE Capacitor 2MFD 450V VN 250TE Capacitor 3MFD 450V VN 350TE Capacitor 3 5MFD 450V VN 500TE Capacitor 450V VN 800TE Capacitor 450V VN 1KTAE Damper Ass y VN 250TE Damper Ass y
8. 2 Model VN 800TE VN 1KTAE Stop the operation and keep the exclusive breaker OFF Cleaning the filter When required 1 Enter the ceiling from the Inspection Opening for the Heat Exchange Ventilators and remove the screw on the inspection cover 2 Holding the Inspection Cover turn two pieces of knob for 90 and remove the cover 3 There is a filter at two places respectively Pull it toward you 4 Either lightly strike the removed filter with your hand or vacuum it with a vacuum cleaner to remove the dirt If it is very dirty swish it back and forth in a solution of lukewarm water and dish washing neutral detergent 5 Install the filter after thoroughly allowing it to dry naturally Install them to fit well with the grooved rail Knob Position Avoid using heat to dry the filter as this may cause changes in the shape or quality of the filter When installed To remove Closed Open Whenever the filter was damaged order the sales shop or the engineering office Separately sold Cleaning the Heat Exchanger If you find it too much stained clean it 1 Remove the four Heat Exchanger from the unit Model VN 800TE has three Heat Exchange he weight of the Heat Exchanger is as shown in the table below Hold it firmly to ensure that you do not drop it Mode Weight kg piece Pieces to be used Heat Exchanger Grooved Rail 2 Use a vacuum cleane
9. be lost by ventilation is effectively recovered Compact construction to downside the cooling heating equipment with size corresponding to heat energy amount to be recovered because the outside air load can be vastly de creased By using the heat exchanger humidity control effect which sucks the humidity approached to near the humidity in the room Comfortable ventilation by simultaneous air suction discharge which sucked air approached to the temperature in the room and the stable ventilation to be performed even in the high airtight room Noise proof effect to prevent entering of outside noise or flowing of noise to outside Suction discharge air system on straight line which is easy to be designed or installed The high level long filter is mounted to increase the effect of dust collection for removing Weight 8296 Reverse installation up and down is possible which 2 units use the same check port Especially powerful notch is mounted which can increase air volume and is selectable in the main unit Only one check port is used for all the maintenance works 3 REFERENCE DRAWING FOR INSTALLATION Outside Intake Duct Supply Air Duct Ceiling Suspension Bolt Y Pipe Hood Exhaust Air 1 69 ip p Room Intake Duct x Room Intake Opening Supply Exhaust Air Grill Gud Air Inside Supply Opening Heat Insulation Supply Exhaust Air Grill Material Exhaust Air Duct Pipe Hood 4 SPECIFICATIONS
10. not to put the outer stress of the cables on the pin connecting area Incomplete connection or fixing is likely to cause a heat generation or a fire Install the power line and the connecting line with accuracy so the power source cover may not float If the installation of the power source cover is inappropriate the pin connection area is likely to cause a heat generation a fire and an electric shock due to dust or powder Never install the unit near the place where there is a fear of leakage of an inflammable gas If gas happens to leak and stays around the unit it is likely to cause a fire Don t use the unit at the other voltages than the rated one It could cause a fire or an electric shock Do not install the unit in locations with large amounts of oily smoke such as food preparation areas It could cause a fire Don t install the unit at the place of a high temperature or a flame It could cause a heat generation or a fire Do not install in locations where harmful or corrosive gasses may be present i e acidic alkali organic solvent paint gasses etc from machinery or factories Installation in such a location could cause a gas poisoning and a fire Do not install in locations with high humidity such as close to bathroom etc It could cause an electric shock or an electric leakage etc 2 TECHNICAL POINTS PERFORMANCE Energy saving ventilation to save the cooling heating cost because the heat energy outside air load to
11. of distribution panel power board and etc before the work when power ON is unnecessary such as a case of disassembling Otherwise an electric shock may be caused even if the wall switch is turned off Turn off the power supply because it is a single cut switch Do not modify the product Also do not use the disassembled modified or repaired parts Otherwise it causes a fire electric shock or injury Prohibition of modification Use the substitute parts corresponded to the model for repair It causes an abnormal operation or a trouble resulting in leakage or fire that is a cause of customers disaster Use appropriate repair parts CAUTION Use the protective materials such as gloves etc for check repair inside the unit If touching inside the unit with bare hands an injury may be caused Use gloves DE Position Part Replace Assembly procedure WARNING Be sure to turn off the power supply of distribution panel power board and etc before the work when power ON is unnecessary such as a case of disassembling Otherwise an electric shock may be caused even if the wall switch is turned off because it Turn off the is a single cut switch power supply Filter 1 2 1 Remove the screw turn the lock The figure is for VN 250TE The configuration Heat exchanger knob by 90 and then remove the lid differs according to the model 1 3 maintenance Fan sirocco 1 to 8 Motor fan 1
12. AE 440 VN 500TE Don t install it near the water heater 20 Refrain from the following duct installing works 1 Excessive bending 2 Multi times bending 3 Making the connecting duct smaller 9 D ugs Do not use in bathrooms food preparation areas etc If you use the unit at the place of much soot and high humidity the filter or the Heat Exchanger gets clogged and disables you to use it Use the Heat Exchange Ventilators in the ambient temperature of 40 C or less Never install the unit at the place where the flame likely reaches directly the unit If you use it at the atmosphere of more than 40 C for hours it is likely to cause deterioration or deformation or damage of the resin part Be careful of dewing and frosting As shown in the figure to the right suppose a high temp absorbing air 5 condition and low temp absorbing air condition B are plotted on the air ie line figure then high temp air A is heat exchanged by the unit and goes out of the saturation curve as shown by Point C In this case the unit will be 9 dewed or frosted To avoid this you are required to heat a low temp air B up 5 to B so as to get below the saturation curve before using the unit lt Dry bulb temperature C 8 2 Local Procurements Switches to be locally procured We recommend that you use a switch having more than 3mm distance to b
13. TION gt CHOME 12 328 KONAN MINATOKU TOKYO 108 0075 JAPAN Copyright 1999 to 2005 TOSHIBA CARRIER CORPORATION ALL Rights Reserved
14. TOSHIBA SERVICE MANUAL HEAT EXCHANGE VENTILATORS VN 250TE VN 3501 E VN SOOTE VN 800 1 E VN 1K TAE 500 5 1 SAFETY CAUTIONS I III 3 2 TECHNICAL POINTS PERFORMANCE erret 7 3 REFERENCE DRAWING FOR INSTALLATION 7 4 SPECIFICATIONS ittis 8 5 NAME AND DIMENSION OF EACH 11 6 WIRING DIAGRAM 12 7 OWNER S MANUAL EXTRACT erret 13 8 INSTALLATION MANUAL EXTRACT 19 9 HOW TO DIAGNOSE THE TROUBLE s csssesescessessesessesseseesesseeeeess 24 10 HOW TO REPLACE THE MAIN PARTS erret 25 11 CHECK WHEN REPAIR WORK COMPLETED 28 12 Q amp A FOR HEAT EXCHANGE VENTILATORS 29 13 EXPLODED VIEWS AND PARTS LIST eere 30 1 SAFETY CAUTIONS The important contents concerned to the safety are described on the ventilator body and in this Service manual Preserve the described items after understanding clearly the following contents indications illustration symbols and reading this manual thoroughly B Explanation of indicati
15. ch on and off will the heat exchange element lowering its efficiency and not only cause improper operation of the unit but will rendering it inoperable also obversely affect the relay inside the switch and may damage it ze 7 2 Model Installation Outside Intake Duct Supply Air Duct Ceiling Suspension Bolt N Pipe Hood x Note that when installing a unit body upside down its printed indication is in a reversed position f e pA Room Intake Duct Exhaust Air Room Intake Opening Supply Exhaust Air Grill Inside Supply Opening Heat Insulation Material Exhaust Air Duct Supply Exhaust Air Grill 7 2 1 Method of Use owe Use the operation switch to operate the unit Pipe Hood the unit stop 1 ON the unit operates Use the Air Flow switch to set to the desired air flow PIG S usuy s Turns to high air volume Eo p Turns to low air volume Use the Function Select switch to set the ventilation mode Heat Exchange Ventilation Mode Open air is thermal exchange with room air to bring it closer to a room temperature and humidity before taking it in the room Normal Ventilation Mode To intake open air as it is 7 3 Maintenance Method In order to prevent the reduced effectiveness of your Heat Exchange Ventilators be sure to clean dirt and dust from the filter and Heat Exchanger at regular intervals Be sure to t
16. ct indoor side and outdoor side dust etc is clogged in a short time because the indoor air and outdoor air do not pass through the filter but flow directly in the heat exchanger OU 1 OA indoor side Outdoor Out air side Air flow Drop of heat exchange e Does not generate the dew condensation on the heat exchanger effect In the heat exchange the temperature difference between indoor and outdoor is widened Therefore in the heat exchanger the dew conden sation generates according to some conditions of temperature and humidity and the dew condensation freezing generates according to some conditions of outdoor air In these cases the status returns to the original status when temperature of the outdoor air ascends and thaws For the measures heating of air at low temperature side is necessary as described in Installation Manual Water drops on the e Are thermal insulation process applied to 2 duct pipes Air suction ceiling surface OA and air discharge EA at outdoor side Be sure to apply thermal insulation because the temperature difference between indoor and outdoor is widened and the dew condensation may generate according to some conditions of temperature and humidity 15 the product installed horizontally If the product is slanted various troubles may be caused Dew condensation e s not the ventilator operated with the normal ventilation in the generates on surface of winter season
17. ctric shock or a fire Carry out the installing works accurately in line with this installation manual Improper practice of installation could cause an electric shocks or a fire Choose the installing place where is endurable in quality as well as in weight then install the unit accurately with adequate strength and completeness of installation in accordance with the installation manual Otherwise it is likely to cause an electric shock a fire a drop of the unit thus causing the injury on the technical standard and explanation for work and make absolutely sure that an exclusive circuit is used human Any insufficient capacity of power circuit and improper work can result in electric shock and fire hazard The external air intake opening should be positioned away from the exhaust openings of combustion gases etc The intake of such gases could cause a lack of oxygen in the room Netting or something similar should be provided at the external air intake opening to prevent birds etc interfering with the unit Nests or other foreign objects should be removed That could cause a lack of oxygen in the room When the system is checked and the power cable undergoes maintenance stop the operation and switch the exclusive circuit breaker OFF Otherwise it could cause an electric shock Carry out the GND work Never connect the GND wire to a gas pipe a water supply pipe a lightning conduc o Provide an exclusive circuit breaker t
18. dition scorching smell or others is found stop the operation immediately and keep the exclusive circuit breaker OFF If you continue the operation without removing the cause it could cause an electric shock or a fire When the system needs a repair consult your dealer When the system is checked and the power cable undergoes maintenance stop the operation and switch the exclusive circuit breaker OFF The internal fan is revolving at high speeds and can cause serious injury And when using a stepladder etc make sure to fix it properly The external air intake opening should be positioned away from the exhaust openings of combus tion gases etc The intake of such gasses could lead to a lack of oxygen in the room If there is combustible gas leakage from other appliances ventilate the room by opening windows If operation were to be attempted in such a situation sparking at electrical contact points could cause an explosion Netting or something similar should be provided at the external air intake opening to prevent birds etc interfering with the unit Nests or other foreign objects should be removed That could lead to a lack of oxygen in the room If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard The external air intake opening should not be positioned where discharged air may directly enter it A situation l
19. e VN 350TE 3 450VAC E E VN 500TE 3 5uF 450VAC Third main body VN 800TE VN 1KTAE gt Exhaust Air Fan Supply Air Fan Capacitor Yellow Blue Low Power Source cone Cea Divide the power lines running to the switch and the main unit On the product do not attach more then one cable to each terminal Gss x NEUTRAL Power Source 220V 60Hz Operation Switch 1 0 OFF 2 1 ON VN 1KTAE 220 240V 50HZ COMMON LOW HIGH DAMPER Air Flow Switch 3 High 4 Low Function Select Switch 5 Heat Exchange Ventilation 6 Normal Ventilation To find out the function of each switch To be procured locally Mods Capacitor VN 800TE 8 0uF 450VAC VN 1KTAE 10 450VAC BENE EN VVVV Third main body 7 ONNER S MANUAL EXTRACT 7 1 Specific Caution Items 7 1 1 Checking Location of Installation This Energy Recovery Ventilators have been designed especially for use in offices conference rooms etc Please check to ensure that neither the main unit nor the inlet outlet grill are installed in any of the following locations Location
20. ely to drop and wet the furniture or other property e Ask the sales office or the engineering shop to perform the work Do not install in locations where harmful or corrosive gasses may be present i e acidic alkali organic solvent paint gasses etc from machinery or factories Installation in such a location could cause a gas poisoning and a fire Do not install in locations where oily smoke or soot may be present There is a possibility that oil will adhere to the filter heat exchange element etc and make operation impossible Do not install in locations with high humidity such as close to bathroom etc Installation in such a location could cause a breakdown Don t use benzene or metal brush when cleaning the filter and heat exchange element Otherwise the unit will get unfit for use Don t blow directly against animals or plants Likely to cause bad effect on animals and plants Do not wash Heat Exchange Ventilators with water It could cause an electric shock Do not handle switches with a wet hand could cause an electric shock 1 3 WARNING CAUTION Described in Installation Manual N WARNING Carry out electrical work in accordance with the laws and regulations prevailing in the country concerned Never fail to ask the sales office from which you bought the unit or the installing service shop to install the unit If you install it by yourself any inappropriate installing works would cause an ele
21. hat can completely break contacts on all the poles by more than 3mm through direct connection to the power terminals Depending upon the environment for installation it becomes necessary to install an earth leakage breaker When you want to pierce the metal duct through the metal lath or the wire lath or the metal plate of the wooden facility do not forget to insulate electrically between the duct and the wall Otherwise it would cause an electric shock or an electric leakage Don t use other parts than specified including the auxiliary parts for installing works If you do not use the specified parts it is likely to cause a drop of the unit a fire an electric shock etc Install the outdoor duct in a falling gradient toward the outside so as to prevent water from coming in If it is not installed so the building is likely to be flooded wetting the household effects Heat insulate the outdoor duct including the indoor side if necessary to prevent dewing Connect the power line and the connecting line with accuracy using the specified cables and fix them firmly tor a GND line of a telephone etc An incomplete GND wire is likely to cause an electric shock When it is high humid and high temperature inside the ceiling a ventilation system must be installed inside the ceiling Otherwise it could cause a fire or an electric leakage If heat insulation is not adequate water likely goes indoor and wets the household properties 50 as
22. ike this will lead to the room being contaminated and this may pose a health risk When Heat Exchange Ventilators are relocated contact your dealer or a professional installer Improper practice of installation could cause a drop of the unit a water leakage an electric shock or a fire Ask the sales office or the engineering shop to perform the work Don t push a finger or a stick into the open air inlet or the exhaust outlet A fan with a high rpm will injure you Modification of the system is strictly prohibited Improper practice of repair could cause a water leakage an electric shock or a fire When the system needs a repair consult your dealer CAUTION If Heat Exchange Ventilators are not used for a long period of time keep the exclusive circuit breaker OFF for safety reasons If the power is left on any build up of dust could cause a heat generation or a fire The system should never be used for any other purposes than intended such as for preservation of foods flora and fauna precision devices or work of art e t could cause deterioration of foods or other problems Install at a stable place of sufficient strength Please note that there might be some places not strong enough to install due the structure of building Provide an exclusive circuit breaker that can completely break contacts on all the poles by more than 3mm through direct connection to the power terminals Depending upon the en
23. ing heat to dry the filter as this may cause changes in the shape or quality of the filter When installed To remove Closed Open Whenever the filter was damaged order the sales shop the engineering office Separately sold Cleaning the Heat Exchanger If you find it too much stained clean it 1 Remove the filters 2 Remove the two Heat Exchanger from the unit Model VN 250TE has one Heat Exchange he weight of the Heat Exchanger is as shown in the table below Heat Exchanger Hold it firmly to ensure that you do not drop it 5 3 Use vacuum cleaner to remove dust and dirt from the element s surface Use a brush attachment on the vacuum cleaner nozzle Clean with a light brushing action Avoid using a hard nozzle as it may disfigure the heat ex change foils Never use water to clean the Heat Exchanger Nozzle Whenever the Heat Exchanger was damaged order the sales shop or the engineering office Separately sold 4 When cleaning is completed return the Heat Exchanger and filter to their former positions and close the Inspection cover and tighten the screw Make absolutely sure to install the filter with an indication of HRS turned to wart the Heat Exchanger side Failure to do so will lead to clogging of the Heat Exchanger foils and reduced performance Insert the heat exchanger right side up with the label marked 4 facing toward you 7 4
24. jury occurs Before check turn off the power supply of the distribution panel and power board After repair work perform a test run to check whether there is smoke abnormal sound or not If the check is not performed a fire an electric shock or an injury occurs Check after repair work After reinstallation check the following items he earth wire is correctly connected he power supply cord is not pinched in the product installation is stable without inclination or wavering Check after reinstallation EI ul If the check is not performed a fire an electric shock or an injury occurs Check Point When the product was repaired replacement of parts etc be sure to perform a test run and check there is no trouble on the following items Item Check Judgment C 1 Insulation resistance When measuring the insulation resistance between the common DC500V megger pin of the terminal and the metal section of the main unit under condition that the power supply cord is not connected the insula tion resistance keeps 10 or more Especially check the following cases sufficiently When the electric parts were replaced Articles used at place with high humidity Products used for 5 years or more 2 Parts specified to If a part other than specified part is used replace it with the safety specified one 3 Process on lead wire Check whether there is slack or excessive tension
25. mes out Check whether or not there is dust on the filters and the Heat Exchanger Clean it according to the Maintenance Method mentioned 18 8 INSTALLATION MANUAL EXTRACT 8 1 Cautions for Operation Never fail to make the inspection opening at the specific place on the ceiling so you can perform the con stant cleaning or the equipment checking of filter and Heat Exchanger The inspection opening shown below is necessary to clean the Heat Exchanger and the filter as required If not cleaned they are likely to get clogged resulting in degradation of performance 2 600 E E A 600 RA SA RA SA Room Air Supply Air Room Air Supply Air Unit Body Unit Body 3 T uc Maintenance Space uw Inspection Opening 450 OA Outside Air For the inspection of Filters Heat Exchanger Fans Motors and Damper 22 EA Exhaust OA Outside Air For the inspection of Filters EA Exhaust Air Heat Exchanger Fans Motors and Damper Heat Exchanger Heat Exchanger Note Model VN 250TE has one Heat Exchange Note Model VN 1KTAE has four Heat Exchange Unit mm Unit mm This Energy Recovery Ventilators should be installed at the place where a larger space than the sizes shown below can be secured for the ceiling space Unit mm Geling Space A Model Celing Space VN 250TE i VN 350TE 320 VN 1KT
26. of the lead wire or not Check the lead wire is connected firmly and the binding process is surely performed 4 Tightening of screws Check the screws are surely tightened 5 Removal of foreign Check whether soldering chip wire wastes screws and etc are matters in the unit remained or not in the unit And check there is no accumulation of dust in the unit 6 Check power supply Check the damage of the terminal block cable Check whether the specified power supply cable is used or not 7 Check mounting Check strength of the product mounting section status There is no loosening of the mounting nut etc DB 12 Q amp A FOR HEAT EXCHANGE VENTILATORS Users are responsible for the following contents Fan does not operate e 15 the electric wiring securely performed For this model the terminal block for connection of cables is provided to the side of the main unit The connecting works between the power supply and the switch and between the switch and the main unit are performed by the special dealers Incorrect cabling from the specified switch and the switches disables to adjust the air volume Therefore check the cable connection Fan does not ventilate e Are not the various filters clogged with dust etc suction air Perform cleaning described in Owner s Manual 15 not the heat exchanger clogged with dust etc Especially in case that the mounting direction of the product is incor re
27. ons Indicates the contents which a danger such as death or serious injury is caused in emer N DANGER g jury gency on the repair engineers or the surrounding third party by an incorrect work Indicates the contents which a possibility such as death or serious injury is caused on the AN WARNING repair engineers or the surrounding third party by an incorrect work or on the customers by a trouble of the products Indicates the contents which occurrence of injury or damage of property is supposed on AN CAUTION the repair engineers or the surrounding third party by an incorrect work or on the custom ers by a trouble of the products Damage of property expanded damage concerned to property household effects or domestic animals pets B Explanation of illustration symbols Mustration symbol Meaning o Indicates prohibition Never do it The concrete contents of prohibition are indicated with illustrations or descriptions near the illustration symbol Indicates forced work Necessarily do it The concrete contents of forced work are indicated with illustrations or descriptions near the illustration symbol Indicates cautions including danger warning The concrete contents of cautions are indicated with illustrations or descriptions near the illustration symbol 1 1 Warning and Caution Exclusive in Service Work N WARNING Be sure to ask the customers not to let children close to the work place The tool
28. or to burn out Carry out grounding work according to the laws and regulations of the country concerned and the techni cal standard After completion of wiring check again there are no wrong wirings before power ON 22 _ 8 6 Duct Installation e Wind the junction of an adaptor and duct with an aluminum tape firmly to prevent any air leakage e The room intake opening should be positioned as far as possible from the inside supply opening Use the specified ducts See the Name and Dimension of Each Part Install two outdoor ducts so they will be in the down gradient toward outside to prevent water from coming in Gradient 1 1007 1 50 Fig 2 Never fail to heat insulate two outdoor ducts including outside air and exhaust air duct to prevent dewing Material Glass Wool Thickness 25mm Fig 2 e When you want to pierce the metal duct through the metal lath or the wire lath or the metal plate of the wooden facility do not forget to insulate electrically between the duct and the wall Refer to the laws and regulations of the country concerned and the technical standard Heat Insulation Material Insulate the Adapter and Aluminum Tape Outside Intake Duct Exhaust Air Duct Gradient NES S 1 100 1 50 Fig 2 8 7 Pilot Running On completion of installing works never fail to check wirings and perform a pilot running After completion of wiring power ON and perform a pilot run acc
29. ording to the following steps for checking a airflow condition and a damper operation Check the opening and closing of a damper by opening the inspection cover of the side of the unit Model VN 800TE VN 1KTAE two Fan Motors are stopped during an operation of the damper Each switch setting Checking items Function Select Switch Air Flow Switch Airflow condition Extra High Extra High High ux Open Heat Exchange Check if the air from inside pe Low 9 opening and the one Damper is beyond room intake opening are set to Extra High High Extra High and to Low vel Normal Ventilation respectively A Damper is near In case that any abnormality occurs in a pilot running its conceivable cause would be a wrong wiring Don t lose time to switch the exclusive breaker to OFF and re wire correctly Otherwise it is likely to cause an electric shock Close DS VN 250TE VN 350TE VN 500TE VN 800TE VN 1KTAE Motor fan does not revolve Abnormal sound is heard from inside the main unit Motor fan revolution is weak Damper does not open close Wall switch Lead wire Connecting section Motor fan Turning section of fan sirocco Capacitor Relay Power supply Terminal block of wall Assembly of electric parts stool Motor fan Fan sirocco Screws of each part of main unit Filter Heat exchanger Capacitor Wall switch Lead wire
30. r to remove dust and dirt from the element s surface Use a brush attachment on the vacuum cleaner nozzle Clean with a light brushing action Avoid using a hard nozzle as it may disfigure the heat exchange foils Never use water to clean the Heat Exchanger Whenever the Heat Exchanger was damaged order the sales shop or the engineering office Separately sold 3 When cleaning is completed return the Heat Exchanger and filter to their former positions and close the Inspection cover and tighten the screw Make absolutely sure to install the filter with an indication of Ha sRT turned toward the Heat Exchanger side Failure to do so will lead to clogging of the Heat Exchanger foils and reduced performance e Please insert so that the stamp to be toward you 7 5 After sales Service Request for Spot Checks To ensure safe correct usage we suggest that you consider a maintenance contract For details inquire at the store where you bought your unit or at the agent which installed it If You Think It s Broken Examine the unit as shown in the table below and if you find any irregularities shut it off immediately and contact the store where you bought your unit or the agent who installed it to request servicing or consultation Symptom Where to look No activity even when s the fuse blown or the breaker tripped the switch is on s the power out No air co
31. ration Ceiling Suspension Fixture Washer CAUTION Ceiling Suspension Bolt O10 to 212 When you are required to be cautious on prevention of vibration we recommend you to use the anti vibration ceiling suspension fixtures Never fail to make an inspection opening with 450 mm or more at the place shown on the paragraph of Cautions For Operation so that you can inspect filters Heat Exchanger power source and motors 8 4 2 Cautions on Installing The Unit Body Upside Down Re fit the ceiling suspension fixture in an opposite side If they are left as it is the foolproof function of ceiling suspension bolts do not work and will cause the danger of dropping of the unit Printed indication is in a reversed position In particular be careful of the arrow mark 1 showing the direction of inserting a Heat Exchange 8 5 Electric Works Have a specialized working contractor perform wiring in accordance with the laws and regulations of the country concerned Connect the broken lines in the wiring diagram We recommend that you use a switch having more than 3 mm distance to break contact and more than 15A rated current Capacitor Yellow Low Yellow Low Blue High Blue High Whte Extra High Black Common Power Source CN Divide the power lines running to the switch and the main unit On the product do not attach more
32. reak contact and more than 15A rated current 8 3 Reference Sketch Outside Intake Duct Supply Air Duct E Pipe Hood Ceiling Suspension Bolt Y ou ES S gt lt gt Supply Air Outside Air 22 gt gt lt gt lt gt lt gt fl SS Room Intake Opening OA x Supply Exhaust Air Grill inside Suppi Opening 572527 Heat Insulation Supply Exhaust Air Grill Material Exhaust Air Duct Pipe Hood Outdoor air conditions Temperature range 10 40 relative humidity 85 or less Indoor air conditions Temperature range 10 40 relative humidity 85 or less Installation requirements Same as the indoor air conditions Indoor air here means air in air conditioned living rooms Its use in refrigerators or other places where temperature can fluctuate greatly is prohibited even if a temperature range is acceptable Example Indoor air conditions During cooling period Temperature 27 C relative humidity 50 During heating period Temperature 20 C relative humidity 40 20 8 4 Installation Method 8 4 1 Model Installation You are required to prepare the ceiling suspension bolts nuts and washers Install the unit firmly and horizontally enough to support its weight Fig 1 Nut f you do not fit it firmly it is not only dangerous but also easily vibrated Washer If it is not fitted horizontally the damper unit becomes defective in ope
33. s exposed to high tempera Locations with high humidity Locations with large amounts of oily tures or direct flame Do not install in high humidity smoke such as food preparation Avoid installing the Heat Exchange locations such as bathrooms Ventilators or the inlet outlet grill in locations which reach temperatures The unit will become inoperable if D 1 oing so may cause a breakdown the filter or Heat Exchanger become of the unit or an electric shock of 40 C or above clogged with oil Usage under high temperature conditions may cause distortion of the filter or Heat Exchanger or motor burn out N Interior Intake Vent Make sure that access is provided so that filter and Heat Do not install the unit in locations such as machinery or Exchanger maintenance and periodic spot checks of the chemical plants where it will be exposed to noxious unit can be easily carried out gases containing acids alkali organic solvents paint Refer to the Model Installation for its space fumes etc to gases containing corrosive ingredients or where dust or oil mist will be produced If there are any problems concerning the location or installation of the unit please consult either store from which it was purchased or the agent who installed it 7 1 2 When Using Always be sure to use a filter Operate the switch with certainty Failure to do so may cause dust and dirt to build up on In particular suddenly turning the swit
34. s or disassembled parts may cause an injury on children Be sure to turn off the breaker before work when power ON is unnecessary such as a case of disassembling If doing so an electric shock may be caused Use the substitute parts corresponded to the model for repair And do not modify the products It causes an abnormal operation or a trouble resulted in leakage or fire that is a cause of customers disaster For connection of the cut lead cables connect the cables with application terminals direct the closed end side upward and then apply the draining process If the post process of connection is not carried out a cause of customers disaster such as leakage or fire generates After the work check the insulation resistance between live part pin of SL terminal and non current carrying part motor frame using a insulation megger 500 and confirm 10MW or more is kept If the insulation resistance is not confirmed a cause of customers disaster such as leakage or fire generates Use the protective materials such as gloves etc for check repair inside of the unit If touching inside of the unit with bare hands an injury may be caused 1 2 DANGER WARNING CAUTION Described in Owner s Manual Do not use as an air circulators for open type burners heaters When gas or oil stoves are used in the home separate equipment for circulating the air should be used N WARNING When any abnormal con
35. sion Length x Width x Height mmj 1134 x 1322 x 388 Corrugated board package ventilator Dimension 453 x 1538 x 1325 Length x Width x Height mm 10 5 NAME AND DIMENSION OF EACH PARTS VN 250TE VN 350TE 500 gt Number Name Guaniiy Note mme _____ 3 emm 4 inspection cover s mesmo 2 lt J Note ooo 1e EM E E i 1 2 1 mite Murti gt SA OA Outside Air gt is i d EA Exhaust pee E A v Room Air RENS SENE 52 t 4 13 x 30 M Oval Hole Ceiling Suspension Fixture 4 Electric Parts Lid 1 Applicable Duct Note Model VN 250TE has one Heat Exchange Mode Nominal Diameter VN 250TE 07150 9 _ 2200 Unit mm moet A B E F G H K vwsoore 904 a 107 eso eco 19 202 soo 202 as 150 70 0 2210 VN 800TE VN 1KTAE gt umber name uaniiy Mone ee 3 am s ema fif exhaust Ain Room Ai 4 inspectionCover 1 _ morrn RII Suppi Ar 7 Heat Exchanger 3 Note 8 rite
36. then one cable to each SAF 11213141516 7 1 131 151 7 terminal Operation Switch 1 0 OFF 2 1 ON Air Flow Switch 3 High 4 Low Function Select Switch 5 Heat Exchange Ventilation 6 Normal Ventilation L COMMON Switch To be procured locally LOW HIGH eZ 220 240V 50Hz VN 350TE 220V 60Hz VN 500TE Capacitor To find out the function of each switch 2 VN 250TE 2 0uF 450VAC IS Rio VN 350TE 3 450VAC VN 500TE 3 5 450VAC bL ee ll __ 118 Third main body Capacitor Supply Air Fan 5 Capacitor Air Fan Power Source Divide the power lines running SAF EAFM to the switch and the main unit On the product do not attach more then one cable to each terminal A S BSL 11181 IST 718 Operation Switch 1 0 OFF 2 1 ON L Air Flow Switch LOW 3 High HIGH DAMPER 4 Low 1 2 3 COMMON 4 5 6 7 Function Select Switch 5 Heat Exchange fut Switch Srcond main body
37. to 9 Damper 1 2 3 10 11 Capacitor 12 13 14 15 P C board assembly including terminal block and relay 12 to 16 2 Remove the filter 3 Remove the Heat Exchanger The weight of the heat exchanger is 3 to 7kg Hold the Heat Exchanger hard without dropping it 4 Remove the screw and the rail 5 Remove the partition board Partition board 6 Remove the connector 7 Remove the screw fixing the fan unit 8 Remove the nut and the fan sirocco Fan sirocco 26 Position Part Mounting Replace Assembly procedure Description 9 Remove the screw fixing the motor fan to remove the motor fan 10 Remove the connector of the damper ass 11 Remove the fixing screw of the damper ass y and slide the damper leftward to remove it Damper Limit switch 12 Remove the screw of the lid electric parts 13 Open the lid electric parts 14 Remove FASTON terminal connected to the capacitor 15 Remove the screw to remove the capacitor 16 Remove the connector and PC board ass y P C board Perform wiring correctly according to the wiring diagram ee Perform mounting in the reverse proce dure of removal e 11 CHECK WHEN REPAIR WORK COMPLETED WARNING After repair work check whether there is a trouble not referring to the check points If the check is not performed a fire an electric shock or an in
38. urn the power off and to Do not immerse the filter or other Never use water on the motor the keep the exclusive breaker off resin components in water 60 C or switch or the Heat Exchanger before carrying out maintenance above activities Switch Turn off Do not use the following items for Avoid using heat to dry the filter as Always be sure to use a filter cleaning it may cause changes in shape or quality dirt to build up on the Heat Ex changer lowering its efficiency and rendering it inoperable Failure to do so may cause dust and Metal brush m 7 4 Maintenance Method 7 4 1 Model VN 250TE VN 350TE VN 500TE Stop the operation and keep the exclusive breaker OFF Cleaning the filter When required 1 Enter the ceiling from the Inspection Opening for the Heat Exchange Ventilators and remove the screw on the inspection 2 Holding the Inspection Cover turn two pieces of knob for 90 and remove the cover 3 There is a filter below the Heat Exchanger at two places respectively Pull it toward you 4 Either lightly strike the removed filter with your hand or vacuum it with a vacuum cleaner to remove the dirt If it is very dirty swish it back and forth in a solution of luke warm water and dish washing neutral detergent 5 Install the filter after thoroughly allowing it to dry naturally Hook Inspection Cover Knob Position Avoid us
39. vironment for installation it becomes necessary to install an earth leakage breaker Unless the earth leakage breaker is installed it could cause an electric shock e Ask the sales office or the engineering shop to perform the work Never fail to install the unit inside the heat insulting walls or in other words in the space insulated from the open air If you install it outside or in the space equivalent to the open air conditions dew is condensed inside the body in the winter season The filter should be cleaned regularly Dust or dirt building up on it can lead to a lack of oxygen in the room Use gloves when cleaning the filter or heat exchange element Doing so will reduce any possibility of injury e tis strictly prohibited to place a container of combustible gas or liquid near Heat Exchange Ventilators or to spray it directly with the gas or liquid It could cause a fire Do not use outside the rated voltage It could cause a fire or an electric shock Don t put a container of water on Heat Exchange Ventilators When water spills it is likely to enter inside the unit and degrade electric insulation possibly resulting in Combustion apparatus should not be placed allowing a direct exposure to wind of Heat Exchange an electric shock Don t incline Heat Exchange Ventilators when taking them out Ventilators Incomplete combustion could occur on the apparatus Otherwise water remaining inside is lik
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