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Mitsubishi Electric VL-250CZPVU-L-E, Handbook

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Mitsubishi Electric VL-250CZPVU-L-E Handbook Download Page 75

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[5] Remove the PCB cover (LOW).

PCB cover (LOW) 

PCB cover (LOW) 

 

Reference: Circuit board locations within the control box

 ... Refer to 11-1 (page 55).

(4) Remove the fan assembly

[1] Remove the heat exchanger. ... Refer to (2).
[2] Remove the PCB cover. ... Refer to (3).
[3] Lower the circuit board (control circuit board) to provide a work space for disconnecting and connecting the 

connectors.

Circuit board

Circuit board

b. Lower the circuit board.

a.  Remove the circuit board fixing screws from the bot-

tom side of the product. 

(2 screws: Spl screw PT 4X10 (painted), indicated by  )

Tightening torque

 

: 1.5 ± 0.2 N.m

Summary of Contents for VL-250CZPVU-L-E

Page 1: ...RT VL 250CZPVU R ERT VL 350CZPVU L ERT VL 350CZPVU R ERT VL 500CZPVU L ERT VL 500CZPVU R ERT July 2021 No U295 C Filter Optional P 250F E P 350F E P 500F E P 250SF E P 350SF E P 500SF E P 250MF E P 350MF E P 500MF E P 250PF E P 350PF E P 500PF E P 250PFH E P 350PFH E P 500PFH E P 250NF E P 350NF E P 500NF E RC cover Optional P RCC E Silencer box Optional P 250SB E P 350SB E P 500SB E LOSSNAY HEAT ...

Page 2: ...ZPVU R type 50 11 2 VL 350CZPVU L type VL 350CZPVU R type 69 11 3 VL 500CZPVU L type VL 500CZPVU R type 85 12 Parts catalog 94 VL 250CZPVU L E 95 VL 250CZPVU R E 101 VL 350CZPVU L E 107 VL 350CZPVU R E 113 VL 500CZPVU L E 119 VL 500CZPVU R E 125 VL 250CZPVU L ERT 131 VL 250CZPVU R ERT 137 VL 350CZPVU L ERT 143 VL 350CZPVU R ERT 149 VL 500CZPVU L ERT 155 VL 500CZPVU R ERT 161 3 4 4 5 6 8 9 16 17 18...

Page 3: ... power cord and lead wires if they are damaged and or degraded Failure to observe this warning may result in electric shock and or fire Use proper parts and tools For repair be sure to use the parts listed in the parts catalog of the applicable model and use the proper tools Failure to observe this warning may result in electric shock fire and or injury Caution against electric shock Prohibited Be...

Page 4: ...er be sure to install a NOx filter on the SA side and a dust catch filter on the OA side Install any of the filters other than NOx filter on the OA and RA side to protect the product 4 OA SA RA RA SA OA 2 Changed points New model Previous model Changes from the previous model VL 250CZPVU L ERT VL 250CZPVU L E To meet certification requirements of the destination countries Instruction Manual and In...

Page 5: ...onents and commercially available components EA SA RA OA Pre heater Field supply OA shutter Field supply Externally installed controller Use P RCC E for installation Silencer Box P 250SB E P 350SB E P 500SB E Router Field supply By pass switch Field supply Living room Rest room Humidity sensor Field supply Ventilation fan interlocking lighting switch Field supply Isolator Field supply CO2 sensor F...

Page 6: ...speed 1 2 3 4 The air flow increment by 1 from 25 to 100 Dimensions Height x Width x Depth 565 mm x 595 mm x 356 mm Weight 26 kg Electrical power supply 220 240 V 50 Hz 220 V 60 Hz Insulation resistance 10 MΩ or more Dielectric strength 1000 V AC 1 minute Maximum current A 1 00 Specifications Ventilation mode Heat exchange mode Fan speed Fan Speed 4 100 Fan Speed 3 70 Fan Speed 2 50 Fan Speed 1 30...

Page 7: ...2 3 4 The air flow increment by 1 from 25 to 100 Dimensions Height x Width x Depth 623 mm x 658 mm x 432 mm Weight 32 kg Electrical power supply 220 240 V 50 Hz 220 V 60 Hz Insulation resistance 10 MΩ or more Dielectric strength 1000 V AC 1 minute Maximum current A 1 32 Specifications Ventilation mode Heat exchange mode Fan speed Fan Speed 4 100 Fan Speed 3 70 Fan Speed 2 50 Fan Speed 1 30 Running...

Page 8: ... 3 4 The air flow increment by 1 from 25 to 100 Dimensions Height x Width x Depth 632 mm x 725 mm x 556 mm Weight 39 kg Electrical power supply 220 240 V 50 Hz 220 V 60 Hz Insulation resistance 10 MΩ or more Dielectric strength 1000 V AC 1 minute Maximum current A 2 3 Specifications Ventilation mode Heat exchange mode Fan speed Fan Speed 4 100 Fan Speed 3 70 Fan Speed 2 50 Fan Speed 1 30 Running c...

Page 9: ...ontrol box Pipe guide EA Pipe guide OA Pipe guide SA Pipe guide RA Filter cover OA Filter cover RA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Wall mount hook center Cable strap hole RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air 150 300 298 125 500 46 600 Control box Space to pull out the control box Working space Required s...

Page 10: ... Pipe guide SA Pipe guide RA Pipe guide EA Pipe guide OA Filter cover RA Filter cover OA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Wall mount hook center Cable strap hole RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air 300 150 500 298 600 60 125 Control box Space to pull out the control box Working space Required space aroun...

Page 11: ...ox Pipe guide EA Pipe guide OA Pipe guide SA Pipe guide RA Filter cover OA Filter cover RA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Cable strap hole Wall mount hook center RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air 678 580 150 125 298 300 46 10 10 Control box Space to pull out the control box Working space Required spa...

Page 12: ...ox Pipe guide SA Pipe guide RA Pipe guide EA Pipe guide OA Filter cover RA Filter cover OA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Wall mount hook center Cable strap hole RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air 300 150 580 60 678 298 125 10 10 Control box Space to pull out the control box Working space Required spa...

Page 13: ... box Pipe guide EA Pipe guide OA Pipe guide SA Pipe guide RA Filter cover OA Filter cover RA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Cable strap hole Wall mount hook center RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air Control box Space to pull out the control box 150 300 745 125 700 298 10 10 46 125 Working space Requir...

Page 14: ...ol box Pipe guide SA Pipe guide RA Pipe guide EA Pipe guide OA Filter cover RA Filter cover OA Filter cover SA Wall mount hook top Controller Heat exchanger Wall mount hook down Wall bracket accessory Wall mount hook center Cable strap hole RA Return Air SA Supply Air EA Exhaust Air OA Outdoor Air 150 300 125 298 745 125 700 60 10 10 Space to pull out the control box Control box Working space Requ...

Page 15: ...FH E P 350NF E P 500F E P 500SF E P 500MF E P 500PF E P 500PFH E P 500NF E A B 15 MODEL A B P 250F E 302 178 P 250SF E P 250MF E P 250PF E P 250PFH E P 250NF E 306 177 P 350F E 377 178 P 350SF E P 350MF E P 350PF E P 350PFH E P 350NF E 382 177 P 500F E 502 178 P 500SF E P 500MF E P 500PF E P 500PFH E P 500NF E 506 177 Unit mm ...

Page 16: ...340 φ145 63 465 655 21 430 200 200 200 590 254 268 200 565 Wall mount hook top Wall bracket accessory Under fix piece Wall mount hook center Pipe guide OA RA Pipe guide SA EA Pipe guide SA EA Pipe guide OA RA Unit mm Unit mm P 500SB E 250 437 160 567 52 154 443 250 723 554 21 27 27 φ183 φ157 210 270 210 223 200 223 223 282 309 633 Wall mount hook top Wall bracket accessory Under fix piece Wall mou...

Page 17: ...ED4 Inspection indicator lamp TM200 Terminal block 0 10 V DC LED6 Power supply indicator lamp TM201 Terminal block Volt free SA1 Not in use TAB1 TAB2 Connector Power supply SA2 Not in use TAB3 4 Connector Reactor SW2 Function selection Switch TAB5 Not in use or Not equipped SW5 SW7 Not in use or Not equipped CN9 CN10 Connector Fan motor SW6 Model selection switch CN17 to CN20 Connector CN105 Conne...

Page 18: ...uring heat exchange mode or when the pre heater is stopped Ω Malfunction monitor output OA shutter output Between 8 and 10 Operation monitor output After heater output Between 9 and 10 Monitor output COM Controller 10 to 13 V DC External control input 5 V DC Insulated Power for the circuit Fed with power lit Not fed with power unlit Not in use Model selection switch Function selection switch Not i...

Page 19: ...or control 14 to 16 V DC 6 Speed command voltage 0 to 6 V DC 7 Rotational speed pulse Fed with power lit Not fed with power unlit Power supply indicator for motor control LED6 Red Control circuit board Damper motor output 220 to 240 V 50 Hz 220 V 60 Hz Power interface circuit board Fuse 10 A 250 V Fuse 5 A 250 V Lot number indication Circuit board name Caution The power circuit board is not insula...

Page 20: ...it board name Control circuit board Lot number indication Volt free control input Power interface circuit board 0 10 V sensor input Caution The power interface circuit board is not insulated from the power line high voltage part except for the con nection part CN132 with the signal interface circuit board Also even when the power supply is cut off the capacitor is charged Therefore wait for at lea...

Page 21: ... applicable load 1 mA Fig 2 2 3 Volt free contact for boost switch 4 TM2 1 Slim Lossnay interlocking Input No Polarity 0 5 mm2 1 5 mm2 See the manual of the external device Slim Fig 3 2 3 TM3 7 Volt free contact signal for By pass monitor or Pre heater signal Output Max 24 V DC 1 A Min 5 V DC 0 1 A No Polarity 0 5 mm2 0 75 mm2 Max 24 V DC 1 A Min 5 V DC 0 1 A Fig 4 8 Volt free contact signal for M...

Page 22: ... of the product When interlocked with Mr Slim signals from Mr Slim oper ate stop Lossnay The product stops regardless of the Enable OFF button setting Notes Be sure to check the setting of Mr Slim in line with the following At the selection of the remote controller functions of Mr Slim check that the Lossnay connectivity setting is set to Not supported This use method limits the functions is as be...

Page 23: ...r Supply for heater Power Supply for relay TM3 Lossnay X15 SA OA 9 8 7 10 Power Supply TM3 X13 By pass operation indicator 9 8 7 10 Relay 2 m or more Power Supply for Pre heater Pre heater Power Supply for relay TM3 Lossnay X13 SA OA 9 8 7 10 Power Supply TM3 Malfunction indicator X14 9 8 7 10 Relay 2 m or more Power Supply for OA shutter OA shutter Power Supply for relay TM3 Lossnay X14 SA OA Fig...

Page 24: ...to mitigate outdoor air load 13 Exhaust fan setting during air conditioner defrosting Stop No Change 1 Operation status setting of the exhaust fan when the air conditioner Mr Slim starts defrosting operation while it is interlocked with Lossnay 36 Outdoor temperature indication Hide Show 0 Set to Show Hide the temperature detected by the built in thermistors Set the settings of 6 4 2 4 Display det...

Page 25: ...itor The output turns ON OFF in line with the operation stop of the exhaust air fan The operation is the same as ON OFF operation by the controller 2 Supply air fan monitor The output turns ON OFF in line with the operation stop of the supply air fan Depending on the conditions such as outdoor tem peratures the output can be off automatically 3 Supply air after heater The output turns ON 10 second...

Page 26: ...e 6 4 2 7 Control mode of the Installation Manual The priority is given to the latest setting 83 Manual input priority mode Not available Available See below for time setting 0 Set the base fan speed to a higher priority for the certain period of time Use this mode when you want to pri oritize manual input input from the controller or MELCloud application over external input control 0 5 hours 1 0 ...

Page 27: ...me controller settings as before the replacement Do not touch the circuit board and fan motor while the LED on the power circuit board is on When the controller or control circuit board is replaced the information set by the user using the controller will be lost It is recommended to keep a record of the settings before replacement so that you can restore them Settings such as the fan speed might ...

Page 28: ...properly Failure mode 5 Error code and LED error display Failure mode 6 The product has an error Failure mode 7 Individual troubleshooting No Check item Corrective action 1 Is the main power supply on Turn the main power supply on 2 Is the current capacity of the power supply isolator appropriate Use the appropriate isolator 3 Is the designated cable used for the power supply cable Use the designa...

Page 29: ...ion cables incorrectly wired is there a faulty connection or are screws loose Connect them securely and tighten the screws firmly 8 Is the wiring length of the transmission cable within the regulations Tables 2 1 and 2 2 Wire the cables within the regulations 9 Does the external input signal match the specifications Table 2 2 Input the signal that matches the specifications Table 2 2 External inpu...

Page 30: ... Set the function selection switch SW2 on the control circuit board correctly 2 Is the supplied controller used Use the supplied controller The Lossnay controllers sold separately PZ 61DR E PZ 43SMF E etc cannot be used 3 When the controller is used are the function selections set correctly to suit the required application Set the function selections correctly After setting the controller function...

Page 31: ...ndicates the fan is running the fan stops by itself Automatic supply air stop Automatic supply air inter mittent operation is being performed The icon indicating operation in the protective mode is displayed Refer to Display in Chapter 5 of the Instruction Manual The unit is set to the delay operation LED1 green on the control circuit board lights Lossnay operates in 30 minutes or 15 minutes after...

Page 32: ...s not operate Temperature condition for the Heat exchange ventila tion or By pass ventilation is not satisfied Check the temperature map For details see 6 4 4 Auto Bypass of the Installation Manual The outdoor air temperature is 8 C or lower When the outdoor air temperature is 8 C or lower the ventilation mode is fixed to the Heat exchange ventila tion mode The operation mode of the interlocked ai...

Page 33: ...ed with power after turning the power to the Lossnay unit ON The Lossnay unit is starting up The controller is not fed with power during start up of the Lossnay unit for a maxi mum of one minute Nothing is displayed on the controller 1 If the ON OFF lamp does not light or blink and nothing is displayed on the LCD screen check the following a Inter terminal voltage at the terminal block in the bott...

Page 34: ...turns to the original screen right away Faulty connection of the con troller cable Refer to section 2 of Failure mode 1 3 The ventilation mode cannot be changed The By pass ventilation is set to Skipped Change the By pass ventilation setting to For details see 6 4 2 7 Control mode of the Installation Manual 4 The temperature is not displayed on the controller The By pass ventilation oper ation is ...

Page 35: ... performed The icon indicating operation in the protective mode is displayed Refer to Display in Chapter 5 of the Instruction Manual No Symptom Cause Corrective action 5 CO2 concentration is not displayed on the controller With the function setting No 84 CO2 concentration indica tion setting is set to 0 Hide Set the function setting No 84 to 1 Show Refer to the function No 84 in 8 2 Function setti...

Page 36: ...selection switch resets all settings done with the controller to the factory settings No Symptom Cause Corrective action 1 Actual fan speed of the Lossnay unit differs from the fan speed set with the controller Automatic supply air stop Automatic supply air intermittent operation is being performed The icon indicating operation in the protec tive mode is displayed Refer to Display in Chapter 5 of ...

Page 37: ...the sup ply air SA fan motor Foreign substance is attached to the centrifugal fan Remove it The fan touches the casing 1 Any fixing nut is loose 2 The casing is deformed or disengaged 1 Tighten the nuts 2 Check for fixing and replace any faulty parts The SA fan motor connector CN10 on the circuit board is not firmly connected Connect the connector securely The EA fan motor connector CN9 on the cir...

Page 38: ...r If the equivalent thermistor resis tance differs greatly from the ambient temperatures replace the thermistor Refer to 4 Diagnosis of the thermistor page 46 in Failure mode 7 6201 Controller circuit board failure Controller failure Replace the controller 6202 Controller circuit board failure Controller clock does not function correctly Replace the controller 6831 9 blinks Controller com municati...

Page 39: ... the control circuit board or controller 6834 9 blinks Controller com munication error start bit detec tion error Faulty connection of the controller cable Refer to section 2 of Failure mode 1 If the error code does not disap pear investigate noise on the con troller cable If the problem persists replace the control circuit board or controller 7113 10 blinks Function setting error The model select...

Page 40: ...an damage Replace the centrifugal fan if it is damaged Loosened or disengaged fan fixing nuts Tighten the fan fixing nuts 2 Air suction sound bubbling sound from the drainage parts when draining The check valves are not installed cor rectly The check valves commercially avail able must be installed to this product Install the check valves correctly The check valves are damaged The check valves com...

Page 41: ...crease in outside air temperature During icing suppress operation the icon is displayed on the controller Fan rotation speed may change or the fan may stop due to Automatic supply air stop Automatic supply air intermittent operation however it is normal Fan rotation speed may also change immediately after the icing suppress operation ends the icon disappears from the controller by returning to the...

Page 42: ... the Instruction Manual for the cleaning procedure Pressure loss in the duct pipe is too high If there is a foreign substance at any ter minal part such as grill or hood remove it Check if it is affected by the indoor pressure change due to another air conditioner It is normal When another ventilator such as a range hood fan operates the indoor pressure can change and affect the fan speed of the p...

Page 43: ... product temporarily in case of a hard rain snow or dense mist Use an outdoor hood which prevents rain drops or snow from entering the unit 1 Diagnosis of the damper Failure mode 7 Individual troubleshooting No Symptom Diagnosis method Corrective action 1 Damper motor failure Disassemble the product to see the damper assembly Refer to 11 Overhauling procedures Check if the damper operates in the t...

Page 44: ...nstallation Manual 3 Lossnay operation is not correct for the sig nal sent from the air conditioner Mr Slim connected to TM2 on the control circuit board Check if connection with the air condi tioner is disconnected or loose Connect the air conditioner Mr Slim correctly Check that terminal block connection is correct Connect the terminals correctly Refer to 5 2 External device connec tion use in t...

Page 45: ... Abnormal voltage or lightning strike can randomly damage the following elements NR1 NR3 NR4 NR5 FUSE1 FUSE2 FUSE3 2 Other check points Check that the circuit name is correct LG X07DC E2 Are any parts discolored to black Is any liquid adhered to any parts Are there any dead bodies of insects or small animals Is the circuit board broken Is the solder cracked Checking the power supply indicator LED ...

Page 46: ...check points Are any parts discolored to black Is any liquid adhered to any parts Is the circuit board broken Is the solder cracked 4 Diagnosis of the thermistor Remove the thermistor connector RA thermistor CN15 OA thermistor CN22 from the control circuit board and measure resistance to detect a failure Resistance reference Reference temperature for failure detection Open 100 kΩ or higher It is a...

Page 47: ... 1 84 0 9 1 41 7 58 1 86 0 13 1 42 7 59 0 36 0 51 3 60 0 37 0 52 0 81 0 c Function setting When the functions are set by using the controller fill in the setting values Setting of the function numbers not mentioned in this table is prohibited Factory default SW2 ON OFF SW6 ON OFF 1 1 Note 1 2 2 Note 1 3 3 Note 1 4 4 Note 1 5 6 7 8 9 10 d External input output Fill in usage of the external input ou...

Page 48: ...he product grounded correctly Are the drain pipes connected correctly Does controller display work correctly After replacing the control circuit board or controller setting the operation mode and func tions is necessary Set them as directed in the Instruction Manual and Installation Manual to suit the required application Are the SA and EA fans rotating Does Lossnay operate without abnormal noise ...

Page 49: ...ED4 on the circuit board is lit do not touch the electric components Before replacing parts or components follow the instructions described in the troubleshooting When servicing always keep proper footing When servicing be sure to turn off the circuit breaker Pay sufficient attention to avoid electric shock or injury Be sure to connect the power supply wires correctly Avoid application of abnormal...

Page 50: ...te For VL 250CZPVU R remove the filter covers A 2 pcs and filter cover B 1 pc 2 Pull out the filter cases OA and RA Precaution To prevent the front casing IN from dropping pull out the filter case SA with the front casing IN after removing the front casing OUT Refer to 4 Filter cover A Filter case RA Filter case RA Filter case OA Filter case OA Filter cover B Filter case SA Remove the filter cover...

Page 51: ... the top hook Precaution Do not remove the screws indicated by on the top of the front casing OUT Front casing OUT Front casing OUT Front casing OUT 3 Remove the front casing OUT a Remove the screws from the bottom side 2 screws Special spl screw PT 4x10 painted indi cated by Tightening torque 1 5 0 2 N m ...

Page 52: ...t to remove the band The heat exchanger may drop and cause an injury Assembly precaution When installing the heat exchanger its label should come to this end and face up as shown in the picture Filter case SA Front casing IN Heat exchanger Label Heat exchanger Mark line PCB plate Assembly precaution Insert the heat exchanger to the mark line on the PCB plate ...

Page 53: ... 2 0 2 N m b Unhook the bypass plate from the top hook indicated by 3 Remove the PCB plate a Remove the screws 2 screws Spl screw PTT 4X14 indicated by Tightening torque 1 2 0 2 N m PCB plate PCB plate Styrene part b Raise this side of the PCB plate a little bit and pull it until the hook at the deepest location indicated by is unhooked to remove the PCB plate Remove the styrene part together ...

Page 54: ...tening torque 1 2 0 2 N m b Remove the PCB cover UP Assembly precaution Be sure to attach the PCB cover LOW before installing the PCB cover UP PCB cover UP PCB cover UP 4 Remove the lead wires a Remove the lead wires from the styrene grooves indicated by Precaution Be careful not to damage the styrene b Pull out the lead wires stored in the outer side of the PCB cover UP ...

Page 55: ... VL 250CZPVU L type VL 250CZPVU R type Control circuit board X07DC E2 C Control circuit board X07DC E2 C Signal interface circuit board VL 40S Signal interface circuit board VL 40S Power interface circuit board VL 40P Power interface circuit board VL 40P Power circuit board X07DC E2 P Power circuit board X07DC E2 P ...

Page 56: ...he screws 3 screws Spl screw PTT 4X14 indicated by Tightening torque 1 1 0 2 N m For thermistor OA For thermistor RA Thermistor lead Thermistor lead 5 Remove the orifice from the bottom groove indicated by 6 Remove the thermistor from the groove 7 Remove the thermistor with the orifice 8 Remove the thermistor from the hole of the orifice indi cated by Orifice Orifice The picture shows the orifice ...

Page 57: ... the picture Protrusion Protrusion Insulok tie Insulok tie For thermistor OA For thermistor RA Circuit board Circuit board 5 Remove the damper assembly 1 Remove the heat exchanger Refer to 2 2 Remove the PCB cover Refer to 3 3 Remove the orifice SA Refer to 4 4 Lower the circuit board control circuit board to provide a work space for disconnecting and connecting the connectors b Lower the circuit ...

Page 58: ...dicated by 6 Disconnect the damper lead connector from the power circuit board Damper assembly Damper assembly Damper lead Bypass air duct 7 Remove the damper assembly fixing screws 2 screws Spl screw PTT 4X14 indicated by Tightening torque 1 1 0 2 N m 8 Remove the damper assembly 9 Remove the damper lead from the bypass air duct ...

Page 59: ...ctors from the power circuit board SA fan motor connector CN10 EA fan motor connector CN9 Precaution When disconnecting the motor connectors make sure that the power supply is turned off Even when the fan motor is stopped disconnecting the live line connec tors will cause a motor malfunction 7 Remove the motor leads from the metal plate hook of the control box indicated by 8 Remove the cover by sl...

Page 60: ...washer 8 12 Remove the DC motor EA a Remove the lead clip fixing screw 1 screw PTT screw 4x8 indicated by Tightening torque 0 8 0 2 N m b Remove the motor fixing screws 4 screws Spl screw PTT 4X14 indicated by Tightening torque 1 2 0 2 N m Centrifugal fan Special nut M8 Spring washer 8 Tab washer Special washer 8 DC motor EA DC motor EA Lead clip ...

Page 61: ...k the hook at the top of it Circuit board Circuit board X07DC E2 C VL 40S Insulating sheet Precaution for replacing the circuit board Refer to the leaflet supplied with the service circuit board and set the DIP switches on the circuit board When the circuit board is replaced the controller settings will be initialized Perform the controller set tings according to the settings sheet included with t...

Page 62: ...s from the bottom side of the prod uct 3 screws Spl screw PTT 4X12 painted indicated by 2 screws Spl screw PT 5X10 painted indicated by Tightening torque 1 1 0 2 N m 2 7 0 5 N m b Use a ratchet to remove the screw 1 screw PT screw 4x10 indicated by Tightening torque 1 5 0 2 N m Power supply cord Ratchet Control box 6 Disconnect the power supply cord a Remove the earth screw and washer 1 screw PT s...

Page 63: ...que 1 1 0 2 N m c Remove the screw 1 screw PT screw 4x10 indicated by Tightening torque 1 5 0 2 N m 7 Remove the circuit board power interface circuit board a Disconnect the connectors indicated by from the circuit board b Remove the lead wire from the hook indicated by c Remove the circuit board fixing screws 2 screws PT screw 4x10 indicated by Tightening torque 1 5 0 2 N m Circuit board VL 40P C...

Page 64: ... head screw driver and open the front cover 2 Open the front cover and disconnect the bottom case connector Assembly precaution Be sure to connect the connectors when installing the front cover Bottom case Top case Front cover Bottom case connector Top case connector 3 Remove the screws 2 screws PT screw 4x6 indicated by Tightening torque 1 5 0 2 N m 4 Disconnect the connector of controller cable ...

Page 65: ...ead clamper Refer to 4 10 c Tighten the screw 1 screw indicated by to fix the thermistor leads and controller cable with the metal clip 2 Damper connector a Connect the damper connector to CN7 on the power circuit board b Fix the damper lead to the metal plate hook of the control box indicated by VL 250CZPVU L type VL 250CZPVU R type Damper lead Damper lead VL 250CZPVU L type VL 250CZPVU R type Co...

Page 66: ...ndicated by d Tighten the lead clip fixing screw Refer to 6 5 VL 250CZPVU L type only VL 250CZPVU L type VL 250CZPVU R type EA fan motor connector EA fan motor connector SA fan motor connector SA fan motor connector Controller cable 4 Before attaching the PCB cover LOW put away the controller cable wires indicated by so that they may not get pinched Assembly precaution The plate metal of the PCB c...

Page 67: ... of the thermistor RA lead wrapped with packing into the styrene groove indicated by and store the extra part of the lead in the outer side of the PCB cover UP VL 250CZPVU L type VL 250CZPVU L type VL 250CZPVU L type VL 250CZPVU R type VL 250CZPVU R type VL 250CZPVU R type Controller cable Thermistor OA lead Thermistor RA lead Thermistor RA lead Thermistor OA lead Controller cable Assembly precaut...

Page 68: ...packing into the styrene groove indicated by Pass the lead over the PCB cover UP VL 250CZPVU L type VL 250CZPVU L type VL 250CZPVU L type VL 250CZPVU R type VL 250CZPVU R type VL 250CZPVU R type Damper lead SA fan motor lead EA fan motor lead Damper lead SA fan motor lead EA fan motor lead Reassemble the unit in the reverse order of disassembly After reassembly always make a test run to make sure ...

Page 69: ...changer 1 Remove the filter cover A 1 pc and filter covers B 2 pcs Note For VL 350CZPVU R remove the filter covers A 2 pcs and filter cover B 1 pc Filter cover A Filter case RA Filter case RA Filter case OA Filter case OA Filter cover B Filter case SA Filter case SA Remove the filter covers from the bushes 2 Pull out the filter cases OA RA and SA Assembly precaution When installing the filter case...

Page 70: ...ashers from the front side 2 screws Spl screw PT 4X10 painted indicated by 2 washers Special washer 3 Tightening torque 1 5 0 2 N m c Open the bottom part of the front casing OUT a little bit and raise it diagonally upward to unhook the top hook Precaution Do not remove the screws indicated by on the top of the front casing OUT Front casing OUT Front casing OUT Front casing OUT ...

Page 71: ...b Remove the reinforcement by sliding it upward Precaution Be careful not to drop the reinforcement due to reaction from the plate It may cause an injury or damage to properties 5 Hold the lower part of the front casing IN and open it a little bit and then remove it by sliding it downward Reinforcement Reinforcement Front casing IN Front casing IN ...

Page 72: ...er may drop and cause an injury Assembly precaution When installing the heat exchanger its label should come to this end and face up as shown in the picture Heat exchanger Label Assembly precaution Insert the heat exchanger to the position shown in the pictures VL 350CZPVU L type VL 350CZPVU R type PCB plate Heat exchanger PCB plate Heat exchanger ...

Page 73: ... and pull it until the hook at the deepest location indicated by is unhooked and then remove the PCB plate by rotating it For VL 350CZPVU R type Raise the PCB plate a little bit and pull it so that it is not disturbed by the EA fan motor and then remove the PCB plate by rotating it PCB plate PCB plate PCB plate PCB plate PCB plate EA fan motor EA fan motor ...

Page 74: ... of the PCB cover UP c Remove the lead wire from the lead clamper indi cated by PCB cover UP 4 Remove the PCB cover UP a Remove the screws 2 screws Spl screw PTT 4X12 indicated by Precaution Screws are located where it is not easy to see them Tightening torque 1 2 0 2 N m b Remove the PCB cover UP Assembly precaution Be sure to attach the PCB cover LOW before installing the PCB cover UP PCB cover ...

Page 75: ...exchanger Refer to 2 2 Remove the PCB cover Refer to 3 3 Lower the circuit board control circuit board to provide a work space for disconnecting and connecting the connectors Circuit board Circuit board b Lower the circuit board a Remove the circuit board fixing screws from the bot tom side of the product 2 screws Spl screw PT 4X10 painted indicated by Tightening torque 1 5 0 2 N m ...

Page 76: ... lead by the notch Indicated by Lead clip SA fan motor connector CN10 Motor lead EA fan motor connector CN9 Power circuit board 4 Remove the lead clip fixing screw to disconnect the con nector 1 screw PTT screw 4x12 indicated by VL 350CZPVU L type only 5 Disconnect the motor lead connectors from the power circuit board SA fan motor connector CN10 EA fan motor connector CN9 Precaution When disconne...

Page 77: ...ated by e Cut the insulok tie fixing the damper lead and earth lead green Precaution Take care not to cut the lead wires Assembly precaution When installing the damper lead and earth lead green be sure to fix them with an insulok tie f Remove the screws 4 screws Spl screw PPT 4x30 indicated by Tightening torque 1 1 0 2 N m There are spacers 4 spacers 6x15 behind the DC motor assembly SA g Remove t...

Page 78: ...tab washer 11 Remove the centrifugal fan 12 Remove the washer 10 Centrifugal fan DC motor assembly EA DC motor assembly EA Special nut M8 Spring washer 8 Tab washer Washer 10 Steps 8 through 12 refers to the DC motor assembly EA Remove the centrifugal fan for the DC motor assembly SA in the similar manner ...

Page 79: ...ve the thermistor OA Assembly precaution When attaching the thermistor align the insulok tie with the groove and fix the thermistor as shown in the picture a Disconnect the thermistor OA relay connector b Remove the thermistor OA lead from the lead clamper c Remove the metal clip fixing screw 1 screw indicated by Element guide OA Element guide OA Element guide OA Thermistor OA Thermistor OA relay ...

Page 80: ...aching the thermistor align the insulok tie with the groove and fix the thermistor as shown in the picture a Disconnect the thermistor RA relay connector b Remove the thermistor RA lead from the lead clamper c Remove the metal clip fixing screw 1 screw indicated by Element guide RA Element guide RA Element guide RA Thermistor RA Thermistor RA relay connector Insulok tie Lead clamper Metal clip ...

Page 81: ...Remove the damper lead from the metal plate hook of the control box indicated by 6 Disconnect the damper lead connector from the power circuit board 7 Slide the notch of the damper frame indicated by upward to unhook from the hook on the damper assembly Damper assembly Damper assembly Damper lead Damper frame Damper frame Damper frame Damper assembly Damper assembly 8 Remove the damper lead from t...

Page 82: ...connectors except for the EA fan motor connector 2 Connect the EA fan motor connector red to CN9 on the power circuit board Assembly precaution Pass the EA fan motor lead over the other lead wires 3 Fix the EA fan motor lead to the metal plate hook of the control box indicated by 4 Tighten the lead clip fixing screw Refer to 4 4 VL 350CZPVU L type only EA fan motor connector EA fan motor lead 5 Be...

Page 83: ...Fit the part of the thermistor RA lead wrapped with packing into the styrene groove indicated by Fit it into the same groove as the earth lead green VL 350CZPVU L type VL 350CZPVU L type VL 350CZPVU L type VL 350CZPVU R type VL 350CZPVU R type VL 350CZPVU R type Controller cable Controller cable Assembly precaution Be careful not to damage the styrene when fitting the lead wires into the styrene g...

Page 84: ...he EA fan motor lead wrapped with packing into the styrene groove indicated by 8 Fix the EA fan motor lead with the lead clamper 9 Store the extra part of the lead in the outer side of the PCB cover UP VL 350CZPVU L type VL 350CZPVU L type VL 350CZPVU R type VL 350CZPVU R type Damper lead Damper lead Cord clip SA fan motor lead SA fan motor lead Cord clip Lead clamper EA fan motor lead EA fan moto...

Page 85: ...er to 11 1 2 Heat exchanger Mark line PCB plate Assembly precaution Insert the heat exchanger to the mark line on the PCB plate Bypass plate 3 Remove the PCB cover 1 Remove the heat exchanger Refer to 2 2 Remove the bypass plate a Remove the screws 2 screws Spl screw PTT 4X14 indicated by Tightening torque 1 2 0 2 N m b Disengage the bypass plate from the boss part on the upper side Bypass plate B...

Page 86: ...his side of the PCB plate a little bit to disengage it from the back casing indicated by and then pull out the PCB plate Remove the styrene part together PCB cover UP 4 Remove the lead wires a Remove the lead wires from the styrene grooves indicated by Precaution Be careful not to damage the styrene b Pull out the lead wires stored in the outer side of the PCB cover UP ...

Page 87: ...ated where it is not easy to see them Tightening torque 1 2 0 2 N m b Remove the PCB cover UP Assembly precaution Be sure to attach the PCB cover LOW before installing the PCB cover UP PCB cover UP 6 Remove the PCB cover LOW PCB cover LOW PCB cover LOW Reference Circuit board locations within the control box Refer to 11 1 page 55 ...

Page 88: ...torque 1 1 0 2 N m For thermistor OA For thermistor RA 4 Remove the thermistor lead from the groove Pull out the thermistor RA from the hole indicated by Element guide SA Assembly precaution Attach the element guide to the original position Even though the element guides OA SA have the same shape another piece of packing is attached on the element guide OA Element guide OA Thermistor OA lead Therm...

Page 89: ...ed by 5 Unhook the thermistor lead from the hooks on the orifice indicated by Thermistor OA lead Thermistor RA lead For thermistor OA For thermistor RA Orifice Orifice Thermistor RA relay connector Thermistor OA relay connector Lead clamper Metal clip Assembly precaution Attach the thermistor as shown in the picture For thermistor OA For thermistor RA ...

Page 90: ...e the damper assembly 8 Remove the damper lead from the bypass air duct Circuit board Circuit board 5 Remove the damper assembly 1 Remove the heat exchanger Refer to 2 2 Remove the PCB cover Refer to 3 3 Lower the circuit board control circuit board to provide a work space for disconnecting and connecting the connectors b Lower the circuit board a Remove the circuit board fixing screws from the bo...

Page 91: ... to the EA fan assembly Disassemble the SA fan assembly in the similar manner Lead clip 5 Remove the lead clip fixing screw to disconnect the connector 1 screw PTT screw 4x12 indicated by VL 500CZPVU L type only SA fan motor connector CN10 Motor lead EA fan motor connector CN9 Power circuit board 6 Disconnect the motor lead connectors from the power circuit board SA fan motor connector CN10 EA fan...

Page 92: ...washer 8 Tightening torque 2 3 0 2 N m 11 Remove the tab washer and centrifugal fan 12 Remove the special washer 10 Centrifugal fan Special nut M8 Spring washer 8 Tab washer Special washer 10 Centrifugal fan Cover 9 Remove the cover by sliding it ...

Page 93: ... Restoring wire connection Refer to 11 1 9 Precautions when storing the controller cable after attaching the PCB cover LOW and UP For VL 500CZPVU L type Tuck the controller cable into the deepest position until the cable touches the bottom metal plate Controller cable Controller cable Tuck the controller cable with a long tool Do not use sharp tools including screwdrivers to avoid dam aging the co...

Page 94: ...W PP screw Cross recess pan head screw with spring washer PPT screw Cross recess tapping screw PCT screw Cross recess flat head tapping screw PTT screw Cross recess truss head tapping screw PT screw Cross recess truss head machine screw SET screw Slotted head stop screw SQ SET screw Square head stop screw P SET screw Pan head stop screw PMT screw Primer truss head screw HS SET screw Hexagon head s...

Page 95: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc VL 250CZPVU L E shows accessory parts ...

Page 96: ...1 6 Front casing OUT W36 008 830 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 008 831 1 10 Controller W36 008 722 1 11 Heat exchanger W36 008 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 008 380 1 15 Parts in bag W36 008 588 1 96 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 97: ... 97 VL 250CZPVU L E 22 2 pcs 22 22 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 4 pcs 25 26 27 28 31 33 28 27 26 25 24 35 23 32 34 30 29 22 3 pcs 22 4 pcs ...

Page 98: ...0mm 26 Tab washer W36 008 077 2 27 Spring washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 008 167 1 OA 30 Orifice EA W36 008 833 1 31 Damper assembly W36 008 715 1 32 Bypass plate W36 008 835 1 33 Orifice SA W36 008 834 1 34 Thermistor W36 008 168 1 RA 35 DC motor SA W36 008 454 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 98 ...

Page 99: ...andard screws Symbol Screw name a PT screw 4x10 22 2 pcs 41 22 2 pcs 42 43 a 44 45 46 47 48 49 8 2 pcs 50 3 pcs 51 2 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board ...

Page 100: ...5 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 100 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 101: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm VL 250CZPVU R E shows accessory parts ...

Page 102: ...1 6 Front casing OUT W36 008 837 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 008 838 1 10 Controller W36 008 722 1 11 Heat exchanger W36 008 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 008 380 1 15 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 102 ...

Page 103: ... 103 VL 250CZPVU R E 22 2 pcs 22 22 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 4 pcs 25 26 27 28 31 33 28 27 26 25 24 35 23 29 34 30 32 22 3 pcs 22 4 pcs ...

Page 104: ...0mm 26 Tab washer W36 008 077 2 27 Spring washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 008 169 1 RA 30 Damper assembly W36 008 715 1 31 Orifice SA W36 008 834 1 32 Bypass plate W36 008 835 1 33 Orifice EA W36 008 833 1 34 Thermistor W36 008 167 1 OA 35 DC motor EA W36 008 453 1 104 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 105: ...2 2 pcs 41 22 2 pcs 8 2 pcs 42 43 a 44 45 46 47 48 49 51 2 pcs 50 3 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board Standard screws Symbol Screw name a PT screw 4x10 ...

Page 106: ...5 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 239 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 232 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 106 ...

Page 107: ...able screw 4 pcs 1 1 2 3 4 5 8 7 2 pcs 10 11 12 13 14 15 6 2 pcs 9 6 pcs 6 2 pcs 16 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm VL 350CZPVU L E shows accessory parts ...

Page 108: ...4x10 W36 008 045 6 7 Special washer 3 W00 000 167 2 8 Front casing OUT W36 008 839 1 9 Bush W36 008 225 6 10 Front casing IN W36 008 840 1 11 Controller W36 008 722 1 12 Heat exchanger W36 008 711 1 13 Wiring diagram W36 008 358 1 14 Drain cap W36 008 309 1 15 Wall bracket W36 008 381 1 16 Parts in bag W36 008 588 1 108 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 109: ... 109 VL 350CZPVU L E Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 25 26 33 25 24 35 32 29 34 30 31 27 4 pcs 28 4 pcs 27 4 pcs 23 21 22 28 4 pcs ...

Page 110: ...008 729 1 With fan casing 27 Spacer W36 008 095 8 6X15 28 Spl screw PPT 4x30 W36 008 047 8 29 Thermistor W36 008 170 1 OA 30 Element guide OA W36 008 841 1 31 Damper frame W36 008 716 1 32 Damper assembly W36 008 731 1 33 Element guide RA W36 008 842 1 34 DC motor assy SA W36 008 730 1 With fan casing 35 Thermistor W36 008 171 1 RA No Name of part Parts No Q ty pcs unit Critical for safety Remarks...

Page 111: ... E 41 43 2 pcs 6 2 pcs 42 44 a 45 46 47 48 49 50 52 2 pcs 51 3 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board Standard screws Symbol Screw name a PT screw 4x10 ...

Page 112: ... Power interface 46 Circuit board W36 008 236 1 Power interface 47 Insulating sheet W36 008 226 1 48 Circuit board W36 008 237 1 Control Signal interface 49 Power supply cord W36 008 220 1 1850mm 50 Lead wire W36 008 231 1 Controller 51 Spl screw PTT 4x12 W36 008 049 3 52 Spl screw PT 5x10 W36 008 048 2 112 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 113: ...ows accessory parts Commercially available screw 4 pcs 1 1 2 3 4 5 8 7 2 pcs 6 2 pcs 10 11 12 13 14 15 6 2 pcs 9 6 pcs 16 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm ...

Page 114: ...4x10 W36 008 045 6 7 Special washer 3 W00 000 167 2 8 Front casing OUT W36 008 844 1 9 Bush W36 008 225 6 10 Front casing IN W36 008 845 1 11 Controller W36 008 722 1 12 Heat exchanger W36 008 711 1 13 Wiring diagram W36 008 358 1 14 Drain cap W36 008 309 1 15 Wall bracket W36 008 381 1 16 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 114 ...

Page 115: ... 115 VL 350CZPVU R E Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 25 26 33 25 24 35 32 29 34 30 31 27 4 pcs 28 4 pcs 27 4 pcs 28 4 pcs 23 21 22 ...

Page 116: ...008 730 1 With fan casing 27 Spacer W36 008 095 8 6X15 28 Spl screw PPT 4x30 W36 008 047 8 29 Element guide RA W36 008 842 1 30 Damper assembly W36 008 731 1 31 Damper frame W36 008 716 1 32 Thermistor W36 008 172 1 RA 33 Element guide OA W36 008 841 1 34 DC motor assy EA W36 008 729 1 With fan casing 35 Thermistor W36 008 170 1 OA 116 No Name of part Parts No Q ty pcs unit Critical for safety Rem...

Page 117: ... E 41 43 2 pcs 6 2 pcs 42 44 46 47 48 49 50 52 2 pcs 51 3 pcs a Power interface circuit board Power circuit board Control circuit board Signal interface circuit board 45 Standard screws Symbol Screw name a PT screw 4x10 ...

Page 118: ... Power interface 46 Circuit board W36 008 236 1 Power interface 47 Insulating sheet W36 008 226 1 48 Circuit board W36 008 239 1 Control Signal interface 49 Power supply cord W36 008 220 1 1850mm 50 Lead wire W36 008 232 1 Controller 51 Spl screw PTT 4x12 W36 008 049 3 52 Spl screw PT 5x10 W36 008 048 2 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 118 ...

Page 119: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc VL 500CZPVU L E shows accessory parts ...

Page 120: ...1 6 Front casing OUT W36 009 833 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 009 830 1 10 Controller W36 008 722 1 11 Heat exchanger W36 009 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 009 380 1 15 Parts in bag W36 008 588 1 120 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 121: ... 121 VL 500CZPVU L E 34 32 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 22 23 24 21 4 pcs 25 26 27 28 33 28 27 26 25 24 37 23 36 30 29 22 4 pcs 31 31 2 pcs 31 35 3 pcs 31 31 32 ...

Page 122: ...ng washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 009 168 1 OA 30 Element guide OA W36 009 837 1 31 Spl screw PTT 4x14 W36 008 046 16 32 Orifice W36 009 834 2 33 Damper assembly W36 009 715 1 34 Bypass plate W36 009 832 1 35 Element guide SA W36 009 835 1 36 Thermistor W36 009 167 1 RA 37 DC motor SA W36 009 453 1 No Name of part Parts No Q ty pcs unit Critica...

Page 123: ...tandard screws Symbol Screw name a PT screw 4x10 41 31 2 pcs 42 43 a 44 45 46 47 48 49 8 2 pcs 50 3 pcs 51 2 pcs 31 4 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board ...

Page 124: ...5 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 124 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 125: ...U R E shows accessory parts Commercially available screw 4 pcs 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc 2 10 ...

Page 126: ...1 6 Front casing OUT W36 009 839 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 009 838 1 10 Controller W36 008 722 1 11 Heat exchanger W36 009 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 009 380 1 15 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 126 ...

Page 127: ... 127 VL 500CZPVU R E 34 32 3 pcs 22 23 24 21 4 pcs 25 26 27 28 28 27 26 25 24 37 23 30 22 4 pcs 31 31 2 pcs 31 35 3 pcs 31 31 32 Air supply fan assembly SA Air exhaust fan assembly EA RA OA 29 36 33 ...

Page 128: ...g washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 009 169 1 RA 30 Element guide SA W36 009 835 1 31 Spl screw PTT 4x14 W36 008 046 16 32 Orifice W36 009 834 2 33 Damper assembly W36 009 715 1 34 Bypass plate W36 009 832 1 35 Element guide OA W36 009 837 1 36 Thermistor W36 009 168 1 OA 37 DC motor EA W36 009 454 1 128 No Name of part Parts No Q ty pcs unit Crit...

Page 129: ...tandard screws Symbol Screw name a PT screw 4x10 31 4 pcs 41 31 2 pcs 8 2 pcs 42 43 45 46 47 48 49 51 2 pcs 50 3 pcs a 44 Power interface circuit board Power circuit board Control circuit board Signal interface circuit board ...

Page 130: ...5 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 130 ...

Page 131: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc VL 250CZPVU L ERT shows accessory parts ...

Page 132: ... 1 6 Front casing OUT W36 008 830 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 008 831 1 10 Controller W36 008 722 1 11 Heat exchanger W36 008 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 008 380 1 15 Parts in bag W36 008 588 1 132 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 133: ... 133 22 2 pcs 22 22 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 4 pcs 25 26 27 28 31 33 28 27 26 25 24 35 23 32 34 30 29 22 3 pcs 22 4 pcs VL 250CZPVU L ERT ...

Page 134: ...80mm 26 Tab washer W36 008 077 2 27 Spring washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 008 167 1 OA 30 Orifice EA W36 008 833 1 31 Damper assembly W36 008 715 1 32 Bypass plate W36 008 835 1 33 Orifice SA W36 008 834 1 34 Thermistor W36 008 168 1 RA 35 DC motor SA W36 008 454 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 134 ...

Page 135: ...mbol Screw name a PT screw 4x10 22 2 pcs 41 22 2 pcs 42 43 a 44 45 46 47 48 49 8 2 pcs 50 3 pcs 51 2 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board VL 250CZPVU L ERT ...

Page 136: ...45 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 136 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 137: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm VL 250CZPVU R ERT shows accessory parts ...

Page 138: ... 1 6 Front casing OUT W36 008 837 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 008 838 1 10 Controller W36 008 722 1 11 Heat exchanger W36 008 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 008 380 1 15 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 138 ...

Page 139: ... 139 22 2 pcs 22 22 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 4 pcs 25 26 27 28 31 33 28 27 26 25 24 35 23 29 34 30 32 22 3 pcs 22 4 pcs VL 250CZPVU R ERT ...

Page 140: ...80mm 26 Tab washer W36 008 077 2 27 Spring washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 008 169 1 RA 30 Damper assembly W36 008 715 1 31 Orifice SA W36 008 834 1 32 Bypass plate W36 008 835 1 33 Orifice EA W36 008 833 1 34 Thermistor W36 008 167 1 OA 35 DC motor EA W36 008 453 1 140 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 141: ...cs 8 2 pcs 42 43 45 46 47 48 49 51 2 pcs 50 3 pcs a 44 Power interface circuit board Power circuit board Control circuit board Signal interface circuit board Standard screws Symbol Screw name a PT screw 4x10 VL 250CZPVU R ERT ...

Page 142: ...45 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 239 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 232 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 142 ...

Page 143: ...able screw 4 pcs 1 1 2 3 4 5 8 7 2 pcs 10 11 12 13 14 15 6 2 pcs 9 6 pcs 6 2 pcs 16 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm VL 350CZPVU L ERT shows accessory parts ...

Page 144: ... 4x10 W36 008 045 6 7 Special washer 3 W00 000 167 2 8 Front casing OUT W36 008 839 1 9 Bush W36 008 225 6 10 Front casing IN W36 008 840 1 11 Controller W36 008 722 1 12 Heat exchanger W36 008 711 1 13 Wiring diagram W36 008 358 1 14 Drain cap W36 008 309 1 15 Wall bracket W36 008 381 1 16 Parts in bag W36 008 588 1 144 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 145: ... 145 Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 25 26 33 25 24 35 32 29 34 30 31 27 4 pcs 28 4 pcs 27 4 pcs 23 21 22 28 4 pcs VL 350CZPVU L ERT ...

Page 146: ... 008 729 1 With fan casing 27 Spacer W36 008 095 8 6X15 28 Spl screw PPT 4x30 W36 008 047 8 29 Thermistor W36 008 170 1 OA 30 Element guide OA W36 008 841 1 31 Damper frame W36 008 716 1 32 Damper assembly W36 008 731 1 33 Element guide RA W36 008 842 1 34 DC motor assy SA W36 008 730 1 With fan casing 35 Thermistor W36 008 171 1 RA No Name of part Parts No Q ty pcs unit Critical for safety Remark...

Page 147: ...2 pcs 42 44 a 45 46 47 48 49 50 52 2 pcs 51 3 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board Standard screws Symbol Screw name a PT screw 4x10 VL 350CZPVU L ERT ...

Page 148: ...r Power interface 46 Circuit board W36 008 236 1 Power interface 47 Insulating sheet W36 008 226 1 48 Circuit board W36 008 237 1 Control Signal interface 49 Power supply cord W36 008 220 1 1850mm 50 Lead wire W36 008 231 1 Controller 51 Spl screw PTT 4x12 W36 008 049 3 52 Spl screw PT 5x10 W36 008 048 2 148 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 149: ...shows accessory parts Commercially available screw 4 pcs 1 1 2 3 4 5 8 7 2 pcs 6 2 pcs 10 11 12 13 14 15 6 2 pcs 9 6 pcs 16 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm 1 pc 1 pc Slim Lossnay connection cable 100 mm ...

Page 150: ... 4x10 W36 008 045 6 7 Special washer 3 W00 000 167 2 8 Front casing OUT W36 008 844 1 9 Bush W36 008 225 6 10 Front casing IN W36 008 845 1 11 Controller W36 008 722 1 12 Heat exchanger W36 008 711 1 13 Wiring diagram W36 008 358 1 14 Drain cap W36 008 309 1 15 Wall bracket W36 008 381 1 16 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 150 ...

Page 151: ... 151 Air supply fan assembly SA Air exhaust fan assembly EA RA OA 21 23 24 22 25 26 33 25 24 35 32 29 34 30 31 27 4 pcs 28 4 pcs 27 4 pcs 28 4 pcs 23 21 22 VL 350CZPVU R ERT ...

Page 152: ... 008 730 1 With fan casing 27 Spacer W36 008 095 8 6X15 28 Spl screw PPT 4x30 W36 008 047 8 29 Element guide RA W36 008 842 1 30 Damper assembly W36 008 731 1 31 Damper frame W36 008 716 1 32 Thermistor W36 008 172 1 RA 33 Element guide OA W36 008 841 1 34 DC motor assy EA W36 008 729 1 With fan casing 35 Thermistor W36 008 170 1 OA 152 No Name of part Parts No Q ty pcs unit Critical for safety Re...

Page 153: ...2 pcs 42 44 46 47 48 49 50 52 2 pcs 51 3 pcs a 45 Power interface circuit board Power circuit board Control circuit board Signal interface circuit board Standard screws Symbol Screw name a PT screw 4x10 VL 350CZPVU R ERT ...

Page 154: ...r Power interface 46 Circuit board W36 008 236 1 Power interface 47 Insulating sheet W36 008 226 1 48 Circuit board W36 008 239 1 Control Signal interface 49 Power supply cord W36 008 220 1 1850mm 50 Lead wire W36 008 232 1 Controller 51 Spl screw PTT 4x12 W36 008 049 3 52 Spl screw PT 5x10 W36 008 048 2 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 154 ...

Page 155: ...ly available screw 4 pcs 1 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 10 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc VL 500CZPVU L ERT shows accessory parts ...

Page 156: ... 1 6 Front casing OUT W36 009 833 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 009 830 1 10 Controller W36 008 722 1 11 Heat exchanger W36 009 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 009 380 1 15 Parts in bag W36 008 588 1 156 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 157: ... 157 34 32 3 pcs Air supply fan assembly SA Air exhaust fan assembly EA RA OA 22 23 24 21 4 pcs 25 26 27 28 33 28 27 26 25 24 37 23 36 30 29 22 4 pcs 31 31 2 pcs 31 35 3 pcs 31 31 32 VL 500CZPVU L ERT ...

Page 158: ...ing washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 009 168 1 OA 30 Element guide OA W36 009 837 1 31 Spl screw PTT 4x14 W36 008 046 16 32 Orifice W36 009 834 2 33 Damper assembly W36 009 715 1 34 Bypass plate W36 009 832 1 35 Element guide SA W36 009 835 1 36 Thermistor W36 009 167 1 RA 37 DC motor SA W36 009 453 1 No Name of part Parts No Q ty pcs unit Critic...

Page 159: ...mbol Screw name a PT screw 4x10 41 31 2 pcs 42 43 a 44 45 46 47 48 49 8 2 pcs 50 3 pcs 51 2 pcs 31 4 pcs Power interface circuit board Power circuit board Control circuit board Signal interface circuit board VL 500CZPVU L ERT ...

Page 160: ...45 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 160 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

Page 161: ...U R ERT shows accessory parts Commercially available screw 4 pcs 1 2 3 4 5 6 7 6 pcs 8 2 pcs 9 11 12 13 14 15 8 pcs Washer Drain hose fixture Cable strap 2 pcs 1 pc Drain hose 250 mm Slim Lossnay connection cable 100 mm 1 pc 1 pc 2 10 ...

Page 162: ... 1 6 Front casing OUT W36 009 839 1 7 Bush W36 008 225 6 8 Spl screw PT 4x10 W36 008 045 4 9 Front casing IN W36 009 838 1 10 Controller W36 008 722 1 11 Heat exchanger W36 009 710 1 12 Wiring diagram W36 008 358 1 13 Drain cap W36 008 309 1 14 Wall bracket W36 009 380 1 15 Parts in bag W36 008 588 1 No Name of part Parts No Q ty pcs unit Critical for safety Remarks 162 ...

Page 163: ... 163 VL 500CZPVU R ERT 34 32 3 pcs 22 23 24 21 4 pcs 25 26 27 28 28 27 26 25 24 37 23 30 22 4 pcs 31 31 2 pcs 31 35 3 pcs 31 31 32 Air supply fan assembly SA Air exhaust fan assembly EA RA OA 29 36 33 ...

Page 164: ...ing washer 8 W00 000 129 2 28 Special nut M8 W00 000 067 2 Left handed 29 Thermistor W36 009 169 1 RA 30 Element guide SA W36 009 835 1 31 Spl screw PTT 4x14 W36 008 046 16 32 Orifice W36 009 834 2 33 Damper assembly W36 009 715 1 34 Bypass plate W36 009 832 1 35 Element guide OA W36 009 837 1 36 Thermistor W36 009 168 1 OA 37 DC motor EA W36 009 454 1 164 No Name of part Parts No Q ty pcs unit Cr...

Page 165: ...Standard screws Symbol Screw name a PT screw 4x10 31 4 pcs 41 31 2 pcs 8 2 pcs 42 43 45 46 47 48 49 51 2 pcs 50 3 pcs a 44 Power interface circuit board Power circuit board Control circuit board Signal interface circuit board ...

Page 166: ...45 Circuit board W36 008 236 1 Power interface 46 Insulating sheet W36 008 226 1 47 Circuit board W36 008 237 1 Control Signal interface 48 Power supply cord W36 008 220 1 1850mm 49 Lead wire W36 008 231 1 Controller 50 Spl screw PTT 4x12 W36 008 049 3 51 Spl screw PT 5x10 W36 008 048 2 166 No Name of part Parts No Q ty pcs unit Critical for safety Remarks ...

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