1. Safety Precautions The following symbols indicate the degree of danger caused Symbols used in the text and on the main unit have the by incorrect handling of the product. following meanings. Do not install in WARNING CAUTION Prohibited bathroom Incorrect handling of the Incorrect handling may result Do not disassemble Be sure to ground product may result in serious in minor injury or physical injury or death. damage to the house or Do not wet Follow instructions household goods. WARNING Do not install the product in hot places, in the direct sunlight and in smoky places. Failure to heed this warning may result in fire.
WARNING When using duct heaters (supply air preheaters, supply air after-heaters), make sure to use safety devices that do not have self-return functions. Do not supply the duct heaters with electricity directly from the product. Failure to heed this warning may result in fire. When using duct heaters (supply air preheaters, supply air after-heaters) that do not have temperature control functions, select duct heaters that have the appropriate capacity according to the airflow passing Follow through the heaters.
CAUTION Do not install the product at regions or locations that exceed the following operating conditions. If these operating conditions are exceeded, dew condensation water might drip. Outdoor air temperature: -15 to 40 ºC Area around the product and ambient temperature and humidity:0 to 40 ºC 80%RH or less and at absolute humidity or less where the dew point temperature of 12 ºC (20 ºC 60%RH or equivalent) is reached under the above minimum outdoor air temperature conditions Do not install the product at locations where the product is prone to be damaged from salt or hot springs. Failure to heed this warning may result in malfunction of product.
Note - Do not install the product at locations where toxic gas or gas containing corrosive components such as acids, alkaline, organic solvents, or paints is generated. (Failure to heed this warning may result in malfunction.) Do not install the product near bedrooms. (Failure to heed this warning may cause complaints about noise.) - For living rooms (for example, bed rooms) where it is anticipated that building ambient noise will be below 30 dB(A), use commercially available ducts that have sound deadening qualities on the supply air side. (Sound from the product resonatesin inside the ducts and may result abnormal noise being emitted from the air vent.) - Install supply air and exhaust air grills at locations where they are less likely to reverberate. (Failure to heed this warning may cause complaints about noise.) - In cold regions or regions with strong winds, wind outside sometimes gets inside when operation of the product is stopped. So, we recommend providing a motorized shutter midway along the supply air and exhaust air ducts. - Install the product so that discharged gas or exhaust air from burning appliances and equipment does not flow back inside the product. - At the outdoor hood installation position, allow at least 3x the diameter of the duct through holes between the outdoor hood and the ducts so that exhaust air is not mixed in with supply air. (Preferably a distance of 450 mm or more should be ensured between the outdoor hood and the ducts.) - Do not connect duct pipes in the ways shown below. (Failure to heed this warning may cause the air flow to decrease or result in abnormal noise.) - Extremely sharp bends - Many bends - Bending right next to the - Extreme narrowing of the duct connection flange duct diameter - Use an exhaust air filter that has a non-woven fabric type filter. - To reduce the noise of drain discharge, make sure to connect commercially available check valves to the drain piping. Use check valves in line with their instructions. - The opening face of the drain piping edge must have a vertical downward lack of water. Make the opening at the end of the drain piping face down so that water drains well. - Make sure to install a drain pipe independently. (When you connect common drainage pipe of an apartment house,it may cause backflow of drain.) - The duct from the outdoor hood should have an uphill slope of 1/30 or more. (It may cause rainwater to enter the inside of duct.)
3. Standard Installation Example 3.1 Installation example Note - Make sure that the exhaust air connection has two or more confluence points with the piping from the bathroom. - Preheaters and electric dampers may be required in your region. - Read the instructions carefully in advance when using optional components and commercially available components. sensor (Field supply) Living room...
3.2 Working space (required space around the product) This product requires regular maintenance (filter cleaning, parts replacement). Place the product from any other obstacles for maintenance. ■VL-250CZPVU-R Control box Space to pull out Unit (mm) ■VL-250CZPVU-L Control box Space to pull out Unit (mm) Note - Secure about 2 mm of clearance from the side faces of the product to any other obstacles. (If not enough clearance is secured, maintenance cannot be performed.
■VL-350CZPVU-R Control box Space to pull out ■VL-350CZPVU-L Control box Space to pull out Unit (mm) Note - Secure about 10 mm of clearance from the side faces of the product to any other obstacles. (If not enough clearance is secured, maintenance cannot be performed. Plus, vibration can result.) - Secure space below the product for withdrawing the control box.
4. Installation Procedure 4.2 Mounting the Product WARNING Select a place which is strong enough to support the CAUTION product, and install the product securely. Do not carry with a pipe guide. Injury could result if parts fall. Failure to heed this warning may result in damage to pipe guide. CAUTION Do not place the product directly on the floor. Install the product in the indoor side of the insulation Failure to heed this warning may result in damage to the drain layer/airtight layer.
4.5 Connecting drain piping 4.5.1 Connection method of drain hose (EA drain pipe) CAUTION 1) S ecurely connect the accessary drain hose to the root of the connection port. Make sure to connect drain piping by the following Securely fix the accessory hose band by tightening with procedure to prevent freezing and dew condensation forming on the surface of the piping a flat head screwdriver. (Otherwise, water leakage can - Connect the drain piping on the indoor side of the insulation result.)
5. Electrical Work 5.1 Standard use WARNING Power cord (product) Electrical work must be carried out safely and reliably by a professional electrical contractor (properly qualified - LS (Black cord) means Live switch for kitchen and bath electrician) in accordance with internal wiring provisions room. When you use LS, remove protective tube. and electricalequipment technical standards. LS (Black): covered by a Poor connection and faulty electrical work could result in protective tube electric shock or fire.
5.2 External device connection use 4) Make a cut in the Bush. Then pass the cord of the external device through the Bush. Connect the each cable for external devices to control board Attach the insulating sheet on the control box. according to the way below. Insert the control box to the product, attach two screws. 1) Remove 2 screws. Pull the control box. (It stops in the (Don't forget to place the insulating sheet) middle) Bind the external device wirings with a cable strap (Included) and attach it under the product. (It is recommended to install it with flexibility so that it will not be loaded from the outside.) Insert the cutting Bush Controll box Controll box Screw 2) Remove an insulating sheet. (Be careful of the protrusions on both sides of the control box) Protrusion Screw Cable strap Insulating sheet Controll box 3) Connect the cables. TM201 TM200 CN105 CN 105: IT interconnection Wi-Fi TM200 1(+,–): Analog input 1 for Sensor 0-10V 2(+,–): Analog input 2 for Sensor 0-10V TM201 1-2: Volt-free contact for bypass switch 3-4: Volt-free contact for boost switch TM2: Slim-Lossnay connection cable TM3: Signal output...
5.2.1 Diagram for control board Control circuit board Signal interface circuit board (VL-40S) SW2 (This is used CN105 at trial operation) TM201 TM200 LED1 (This is used at trial operation) 5.2.2 Terminal connection specifications and functions Selection requirement Wiring Setting Terminal Category No Input/Output Terminal rating Diameter and Sensor, switch example explanation length of wires etc, + Analog input Input (for sensor)
WARNING Make sure to install safety devices that do not have self-return functions on the duct heaters (supply air preheaters, supply air after-heaters). Do not supply the duct heaters with electricity directly from the product. Failure to heed this warning may result in fire. When using duct heaters (supply air preheaters, supply air after-heaters) that do not have temperature control functions, select duct heaters that have the appropriate capacity according to the airflow passing through the heaters.
fig 1 fig 2 + - + - Switch 1 2 3 4 Rating: DC 15 V, 0.1 A Minimum applicable load: 1mA TM201 Bypass Sensor TM200 Volt-free a contact 0-10 V sensor The unit can be operated by the DC power supply input Volt-free a contact from external devices. Contact ON (closed) becomes input, and contact OFF (open) becomes OFF. Note Note - Misconnection may cause malfunction of external device. - Since the circuit ensures 1 mA when the switch is turned on, the maximum number of switches that can be used - Make sure to confirm the polarity. for Volt-Free contact input is one when the minimum - Make sure to connect electric wires correctly. load capacity is 1 mA. - Terminal block has a seal attached on No.2. When using No.2, remove the seal.
fig 4 <Examples of electric wiring for function setting No.57 TM3 9-10> Function setting value : Exhaust air fan Function setting value : Supply air after-heater Function setting value : Supply air fan Lossnay 2 m or more Operation indicator Relay Power Supply Power Supply for heater Power Supply for relay <Examples of electric wiring for function setting No.58 TM3 7-10> Function setting value : Bypass ventilation Function setting value : Supply air preheater Lossnay 2 m or more By-pass operation indicator Pre-heater Power Relay...
■ Post-installation Checks When you have finished installation work, inspect the following items according to the following Check list before turning the power on. Make sure to correct any malfunctions that are found. (The functions is not being demonstrated or safety can not be ensured) Check Item Remedy for Malfunction...
6. How to use Controller 6.1 Controller button functions 1 ON/OFF button Off operation is disabled at the factory default setting. Please see 220.127.116.11 Control mode. 2 SELECT button 3 RETURN button 4 MENU button The «Main menu» screen is displayed. Please see 6.2 Menu structure. 5 Backlit LCD The screen displays operation settings. Function buttons Press any button to turn on the backlight. You will be able to operate buttons. After turning on the backlight for a certain period of time, the backlight turns off. 6 ON/OFF lamp Main Main menu The lamp lights up in green while the product is User options...
6.2 Menu structure Main display Main menu User options Press the button. Boost/Purge preset Move the cursor to the Silent mode desired item with the Manual bypass mode and Please see Instruction manual Section 5 buttons, and press the Holiday mode button. Clock Commissioning Administrator password is required Commissioning menu (1/2) Section 6.4 Initial setting Section 6.4.2 Initial setting menu (1/2) Main/Sub Section 18.104.22.168 Clock Section 22.214.171.124 Contrast Section 126.96.36.199 Display details Section 188.8.131.52 Administrator password Section 184.108.40.206 Initial setting menu (2/2) Language selection Section 220.127.116.11 Control mode Section 18.104.22.168 Simple mode/Enable OFF button/ Manual bypass/Auto bypass/...
6.3 «Main menu» screen and operation 6.3.1 Turning on the power Before turning on the power: 1) Make sure that the connection is properly installed according to the Installation Manual. 2) Make sure that the product has been installed completely. 6.3.2 When the power is supplied, the screen below will appear. Normal start up (indicating the percentage of process completion) Note - Only the first time, the «Language selection» screen will be appeared. Please Wait - The product will not start-up without language selection. - See 22.214.171.124 Language selection. 6.3.3 Main display After the successful startup, the «Main display» will appear. The product is not in operation. The product is in operation.
6.4.1 Administrator password <Administrator password is required.> Press the button to move the cursor. Administrator password Enter administrator password Press the button to change the number. 0000 Press the button to set the password. Select: Cursor Note - The administrator password is required to set the items under «Commissioning menu». - Factory default password is 9999. - 126.96.36.199 Administrator password setting to change your password. 6.4.2 Initial setting menu Press the button to move the Initial setting menu Initial setting menu Main/Sub Language selection cursor.
188.8.131.52 Contrast You can set Contrast of the screen. Press the button to adjust the contrast. Contrast Press the button to save the changes. Note Main menu: Light Dark - Adjust the contrast to improve viewing in different lighting conditions or different installation locations. This setting does not always improve the display from all directions. 184.108.40.206 Display details You can change the display details about clock and temperature, sensor value. Press the button to move the cursor. Display details Clock No 24h Press the button to change the setting. Temperature Sensor value / No Press the button to save the changes. Select: [Clock]: See 220.127.116.11 Clock display Cursor Change [Temperature]: C hange the temperature display [Celsius (ºC)/...
Clock display Clock display [Clock]: C hange [Display (Yes)/Hide (No)] the time on the Clock 12h disp. «Main display» screen. AM/PM disp. The factory default setting: Yes [12h disp.]: C hange the time display [12 hour (12h)/24 hour Select: Cursor Cursor (24h)] on the «Main display» screen. The factory default setting: 24h [AM/PM disp.]: O nly selecting [12h disp.]. Change [AM/PM] display position. The factory default setting: AM 12:00 - Time display format will also be reflected on the timer and schedule setting display. The time is displayed as shown below. 12-hour format: AM12:00 ~ AM1:00 ~ PM12:00 ~ PM1:00 ~ PM11:59 18.104.22.168 Administrator password setting You can set the administrator password. button button button to update 1 Press the 2 Press the 3 Press the...
22.214.171.124 Control mode Setting Fan speed, ventilation mode icon and limitation of function. Note - «Control mode» screen cannot be go to when the product is in operation. Press the button on the «Initial setting» screen to stop the operation. Press the button to move the Control mode Control mode Simple mode No / Normal Unskippable cursor. Enable OFF button / Yes Medium Skipped Manual bypass Skipped Boost / Skipped Auto bypass / Skipped Purge / Skipped Press the button to change the...
6.4.3 Air flow Adjust the output of the fan speed. Note - M ake sure to set the Airflow settings for all fan speeds to be used and measure the air volumes. The output of the notch whose fan speed has been changed from the factory default setting is different from the output of the notch whose fan speed has not been changed. For example, the fan outputs are different under the same 70% settings. (For 65% of whose fan output was changed from the factory default setting and 70% of whose fan output was not changed, the output of the latter can be lower than the former one.) - M ake sure to set the fan speed after making the supply air volume and the exhaust air volume equal. If there is a large difference in the supply and exhaust air volumes, the product protection function for winter may not operate properly. 126.96.36.199 Accessing the «Airflow» screen Press the and button to move the cursor. Commissioning menu Airflow Initial setting Press the button to go to the next screen. Airflow Auto bypass Loading External input The product data is loaded before the screen will appear.
188.8.131.52 Adjust the fan output of the product The product starts adjusting the fan output. Airflow Airflow adjusting [Airflow adjusting] is displayed. Normal Medium Skipped After completing the output adjustment of the fan on the Boost 70 % / 70 % product, it returns to the screen of 184.108.40.206. Purge 100 % / 100 % Note - M easure the air volume after Airflow adjusting has disappeared. If readjustment is needed for the output of the same fan speed, repeat 220.127.116.11-18.104.22.168. 22.214.171.124 Output settings for other fan speeds Press the button to return to 126.96.36.199 Fan speed selection.
6.4.4 Auto bypass In the Auto bypass mode, the product decides to operate heat exchange ventilation/bypass ventilation every 30 minutes. On the «Auto bypass» screen, set the threshold of the switching map for heat exchange ventilation/bypass ventilation. Outdoor temperature, indoor temperature, and their temperature difference can be set as the threshold. [Outdoor temp. low limit]: T he lowest limit of outdoor temperature in the bypass ventilation area The factory default setting: 16°C / Setting range: 10 to 25°C [Target indoor temp.]: The lowest limit of indoor temperature in the bypass ventilation area The factory default setting: 16°C / Setting range: 15 to 30°C [Outdoor temp. cooler by]: The upper limit of temperature difference between indoor temperature and outdoor temperature The factory default setting: 0K / Setting range: 0 to 7K Note - W hen °C/°F is switched on 188.8.131.52 «Display details» screen, the indications of the [Outdoor temp. low limit] and the [Target indoor temp.] will be switched. The table shows the changed values. The factory default setting ˚C ˚F Outdoor temperature Indoor temperature Setting reference example) Heat exchange ventilation area Outdoor temp. cooler by 2K Outdoor temp. cooler by 0K Target indoor temp. 16 ˚C Bypass ventilation area Outdoor temp. low limit 16 ˚C Target indoor temp. 22 ˚C Outdoor temp. low limit 20 ˚C 20 22 24 26 28 30 32 34 36 38 40 Indoor temperature (˚C) Note - C onditions of prohibiting bypass ventilation: In the following conditions, the ventilation mode switches to the heat...
184.108.40.206 Accessing the «Auto bypass» screen Press the and button to move the cursor. Commissioning menu Airflow Initial setting Press the button to go to the next screen. Airflow Auto bypass Loading External input The product data is loaded before the screen will appear. Service [Loading] is displayed. (10-60 seconds) Main menu: Cursor Page 220.127.116.11 The Auto bypass settings Press the and button to move the cursor. Auto bypass Outdoor temp. low limit Press the and button to change the setting value.
6.4.5 External input The product has external input terminals. (See below.) Function name Input Terminal Analog input 1 0 -10 VDC TM200 1(+,–) Analog input 2 0 -10 VDC TM200 2(+,–) Live switch 220-240 VAC Power cable LS (Black) Volt-free contact Contact input TM201 3-4 On the «External input» screen, you can set the operation for the external input. Note - T he product operates according to the highest fan speed input from the external input of the effective settings. When the fan speed is determined by the external input, is displayed on the «Main display» screen. - W hen the icon is displayed, the operation of the product may differ from the fan speed displayed on the controller. Also, a lower speed cannot be selected by the controller. (Note that a higher speed can be selected.) 18.104.22.168 Accessing «Analog input 1» screen (Take the same process for Analog input 2, Live switch, and Volt-free contact screens.) Press the and button to move the cursor.
The table shows the conditions for operation patterns. concentration Remarks Pattern Input voltage [VDC] Fan speed [ppm] - Select the CO sensor whose relation between the CO concentration 0.0 -2.6 0 - 520 and the output voltage is 2000 ppm = 10 VDC. - The fan speed will be the highest if the input voltage exceeds 6.0 VDC. (For 6.0 VDC or lower, refer to the left side of the table.) 3.0 - 4.1 600 - 820 - The input voltages and CO concentrations are standards. (Values are not guaranteed.) - If the input voltage is somewhere in between, the fan speed varies 4.5 - 5.6 900 - 1120 depending on the conditions. - When [Skipped] is selected for the fan speed on the «Control mode» screen, the fan speed will be one lower level. 6.0 or more 1200 or more - Select the CO sensor whose relation between the CO concentration 0.0 - 2.1 0 - 420 and the output voltage is 2000 ppm = 10 VDC. - The fan speed will be the highest if the input voltage exceeds 5.0 VDC.
22.214.171.124 Live switch Set the operation for the live switch input (220-240 VAC input linked with a lighting switch etc.). Press the and button to move the cursor. Live switch Enable / Yes Press the and button to change the setting value. Delay time 20 min Overrun time 20 min Press the button to save the changes. [Enable]: Select [Use(Yes)/No use(No)] of the Live switch. Select: The factory default setting: No Cursor Cursor [Delay time]: C hange the delay time for the start of the Live switch operation from switch input ON. The factory default setting: 20 min Setting range: 0-120 mins (5-min intervals) [Overrun time]: C hange the extension time from turning on the switch input to the end of the live switch operation.
6.4.6 Service 126.96.36.199 Accessing the «Service menu» screen Press the and button to move the cursor. Service menu Input maintenance info. Press the button to go to the next screen. Function setting Initializing Service menu: Cursor 188.8.131.52 Input maintenance info. The following can be set. The information input at (1), (2), and (3) is displayed on the «Error information» screen. (1) Model name input: Model names can be registered. (Up to 18 characters) (2) Serial No. input: Product serial No. can be registered. (Up to 8 characters) (3) Dealer information input: Dealers’ phone numbers can be registered. (Up to 13 characters) (4) Initialize maintenance info.: The information set at (1), (2), and (3) above can be initialized. Press the and button to move the cursor. Maintenance information Model name input Press the button to go to the next screen.
Error code 5101 Contact information LC ( Lossnay ) Press the button to move to the Reset screen. Error unit Dealer M-NET address 0 Tel 012-3456-7890 Model name VL-250CZPVU-R-E Model name, Serial No. and Dealer information will Serial No. 01234567 be displayed only when they are set at 184.108.40.206. Reset error:Reset button Reset error: Reset button Page Reset Page Reset blinks...
6.4.9 Error history You can check the past error history. Error state cannot be reset from this screen. Press the and button to change the page. Error history Error Unt# dd/mm/yy Up to 4 pages, 12 cases can be stored in the error history. 0900 --- 20/04/10 12:34 Press the button to move to the Reset screen. Check menu: Page Delete Press the button to reset the error information. Error history Delete error history? Cancel blinks 6.4.10 Run time You can check the powered time and fan operation time of the product. 220.127.116.11 Accessing the «Run time» screen Press the and button to move the cursor.
6.4.11 Maintenance interval Set the maintenance interval of the filters. After the fan operation time exceeds the product maintenance Lossnay 12:30 Fri interval, the maintenance sign ( ) will be displayed on the «Main display» screen. Boost HeatEX Mode 18.104.22.168 Accessing the «Maintenance interval» screen Press the and button to move the cursor. Commissioning menu Auto bypass Restriction Press the button to go to the next screen. Error information Error history Loading The product data is loaded before the screen will appear. Run time Maintenance interval [Loading] is displayed. (10-60 seconds) Main menu: Cursor...
6.5 Function setting Function setting list Factory Function setting value Function Function name default Function description   setting 1: Set the filter maintenance indica- tion to show/hide. 2: Set Use/No use of the function 1: Filter maintenance 1: Yes 1: No 1: Yes that increases the fan output indicator — — — — — — — every 1/3 of 6.4.11 Maintenance 2: No 2: No 2: Yes interval passes. 2: Fan power increase - This function cannot be used when the fan output is set to the highest (100%). Set the operation mode when the power is recovered after the product stopped.
Factory Function setting value Function Function name default Function description   setting Set the ON/OFF conditions of termi- nal blocks TM3 9-10.  Exhaust air fan monitor: The terminal blocks turn ON/OFF in line with the operation/stop of the exhaust air fan. (The terminal blocks will perform the operation which is the same as ON/OFF of the control- ler.)  Supply air fan monitor: Supply Exhaust Supply The terminal blocks turn ON/OFF External output setting air — air fan air fan — — — — — — in line with the operation/stop of the after- monitor monitor supply air fan. (Depending on the heater conditions such as outdoor tempera- tures, the terminal blocks will stop automatically.)
Factory Function setting value Function Function name default Function description   setting Set the ON/OFF conditions of termi- nal blocks TM3 8-10.  Malfunction monitor: Turns the output ON when a mal- function occurs on the product. (This is used to indicate malfunctions aside from the controller.)  Supply air shutter: Set the setting so that the output Mal- Outdoor ON/OFF match with the open/closed External output setting function air shut- — — — — — — — — of the shutter installed on the OA monitor duct. - Output ON (shutter: open) condi- tions: 10 seconds before starting the supply air operation - Output OFF (shutter: closed) conditions: The built-in thermistors detect that the outdoor temperature is -18°C or lower and 20 seconds have elapsed after the supply air...
6.6 Error list № Error item Error code Unit operation Error code reset Description Commissioning The error is indicated when the product is in 0900 Commissioning operation End the commissioning operation in the commissioning mode. External device error The error is indicated when an abnormal temperature is detected by the built-in OA 3126 Heater output: OFF Stop the product. thermistor. It is assumed that there are wrong connections or wrong capacities of heaters. Fan motor error Failure in fan motor Fan output: OFF 4116 Stop the product. Heater output: OFF Temperature sensor Supply air fan output: OFF The error is indicated when the built-in OA error Heater output: OFF thermistor is in malfunction. 5101 Cancel the error state. Bypass ventilation is prohibited. RA temperature The Heat exchange The error is indicated when the built-in RA sensor error...
6.7.2 Operation check This is the function to check the operations of externally connected devices such as heaters. You can check the following specifications: - When the output devices such heaters, malfunction monitors, and operation monitors are connected - When the outdoor temperature is 8°C or lower (bypass damper operation check) Operation method (1) Withdraw the control box. (2) Supply the product with power. (3) Turn On the commissioning switch (DIP-SW2-1). (Error code 0900 is displayed on the controller.) Function Minutes Terminal 10 20 30 40 50 0 10 20 30 0 No. Data Seconds STOP (purge) STOP (purge) FanSpeed Bypass HeatEX Ventilation mode Bypass monitor output TM3 7-10 58 Pre-heater output EA fan monitor output TM3 9-10 57 SA fan monitor output SA fan monitor output delay operation...
7. Explaining to the User ● Explain to the user where the circuit breaker and the controller are located and how to clean the filters. ● Tell the user the results of checks performed using the checklist. ● Hand over the user a leaflet with the URL where this manual can be viewed. ● Explain correct use by following the descriptions in the Instruction Manual. In particular, Safety Precautions describe important notices and warnings relating to safety. Explain to the user that you should observe these. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Eng-46...