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Do not touch the unit controls with wet hands.

Do not carry out the unit maintenance with wet 

hands.

Do not wash the unit with water.

Protect the unit electric parts from water ingress.

Use the unit only as intended by the manufac-

turer.

Do not connect a clothes dryer or other similar 

equipment to the unit or the ventilation system.

Do not put any water containers on the unit, i.e. 

flower vases.

Do not sit on the unit and do not put any objects 

on it.

OFF

ON

Disconnect the unit from power supply prior to 

maintenance.

Do not let children operate the unit.

Do not damage the power cable while operating 

the unit.

Do not put any objects on the power cable.

Keep combustible gases and inflammable prod-

ucts away from the unit.

Do not open the operating unit.

In case of unusual sounds, smell of smoke discon-

nect the unit from power supply and contact the 

service centre.

During a long-term operation of the unit periodi-

cally check the mounting for reliability.

Do not block the air duct when the unit is on.

Do not let air flow from the unit be directed to the 

open flame devices or candles.

UNIT OPERATION SAFETY PRECAUTIONS

Summary of Contents for VUT 1000 PW EC

Page 1: ...VUT 600 PW EC VUT 1000 PW EC Heat recovery air handling unit User s manual ...

Page 2: ...data 6 Unit design and operating logic 8 Mounting and set up 9 Connection to power mains 13 Functional diagram 14 Technical maintenance 15 Fault handling 17 Storage and transportation rules 17 Manufacturer s warranty 18 Acceptance certificate 19 Seller information 19 Mounting certificate 19 Warranty card 20 CONTENTS ...

Page 3: ...rring the unit control the user s manual must be turned over to the receiving operator Symbol legend used in the manual UNIT MOUNTING SAFETY PRECAUTIONS WARNING DO NOT Theunitmustbedisconnectedfrompowersupply prior to any installation or repair operations The unit must be grounded The unit must not be operated outside the tem perature range stated in the user s manual and in aggressive or explosiv...

Page 4: ... on it OFF ON Disconnect the unit from power supply prior to maintenance Do not let children operate the unit Do not damage the power cable while operating the unit Do not put any objects on the power cable Keep combustible gases and inflammable prod ucts away from the unit Do not open the operating unit In case of unusual sounds smell of smoke discon nect the unit from power supply and contact th...

Page 5: ...ty m h Control panel _ PU SENS 01 with a sensor display A7 PU JK 01 with an LCD display VUT ХХХ P W ЕС Х X 3 DESIGNATION KEY The unit with heat recovery and a water heater is designed to save heat energy by means of heat recovery and is one of the energy saving components used in the buildings and premises The unit is a component part and is not designed for independent operation The unit is desig...

Page 6: ...W EC VUT 1000 PW EC Ø D 199 249 B 827 1350 B1 711 1215 B2 607 5 B3 294 430 B4 345 655 H 283 317 L 1238 1346 L1 1286 1395 Unit technical data Model VUT 600 PW EC VUT 1000 PW EC Unit voltage V 50 60 Hz 1 230 Max fan power W 270 400 Max fan current A 1 6 2 26 Number of water heating coils 2 4 Total unit power kW 0 27 0 4 Total unit current A 1 6 2 26 Max air capacity m3 h 600 1000 RPM 3060 2780 Sound...

Page 7: ...105 l s Water pressure drop Draw the line from the point where the line crosses the black curve to the pressure drop axis 8 5 kPa How to use water heater diagrams Air Speed Starting from 950 m3 h on the air flow scale draw a vertical line till the air speed axis which makes about 3 35 m s Supply air temperature Prolong the line up to the point where it crosses the outside air temperature blue curv...

Page 8: ...00 PW EC unit example The basic unit delivery set includes a control panel for connection to the control system inside the unit casing using a data cable The unit is equipped with a supply and an extract centrifugal single inlet fans with backward curved blades maintenance free EC motors with an external rotor and a built in overheating protection a plate counterflow heat exchanger and a water hea...

Page 9: ...s fixed inside a dowel Washer Nut Vibration damping rubber Nut and lock nut Example To attain the best performance of the unit and to minimise turbulence induced air pressure losses connect a straight air duct section on both sides of the unit while mounting Minimum straight air duct length equal to 1 air duct diameter on intake side equal to 3 air duct diameters on outlet side If the air ducts ar...

Page 10: ... frost resistant properties Mixing unit diagram not included in the delivery set of the water heater is shown in the following figure WARNING The unit operates either in Winter or Summer mode If the outside air temperature is below 10 C the Winter mode is activated If the out side temperature accedes 10 C the unit operates in Summer mode In Summer mode the unit operates regardless of the return he...

Page 11: ...available both in left and right handed modifications for easy installation and providing minimum distances for access to the unit Service sides of the unit supply air extract air exhaust air intake air supply air extract air exhaust air intake air Right handed modification Left handed modification Service side Service side top view top view Water heater connection Water heater connection Safety p...

Page 12: ...of the heat exchanger Humidity sensor 1 2 3 Duct humidity sensor connection OUTDOOR TEMPERATURE SENSOR MOUNTING AND CONNECTION The unit is supplied with an outdoor temperature sensor The outdoor temperature sensor mounting is as follows 1 Remove two screws that retain the sensor cover 2 Take off the sensor cover 3 Install the sensor on the outer wall The installation place must not be subjected to...

Page 13: ...the control unit compartment To connect the power and the ground cable route the cables through the airtight electric lead in in the unit casing and connect these to the terminal block The wiring diagram for connection of the air handling unit to power supply is on the back side of the lid Design Name Model Wire Cooler DX cooler NO 2 х 0 75 mm2 DD1 Pump dry run protection relay NC 2 х 0 75 mm2 M4 ...

Page 14: ...1 Water heater HV1 Duct humidity sensor HV2 Indoor humidity sensor RK1 Plate heat exchanger SM1 Supply air damper actuator SM2 Exhaust air damper actuator SM3 Bypass damper electric actuator SM4 3 way valve actuator TE1 Intake air temperature sensor TE2 Temperature sensor downstream of the heat exchanger TE3 Return heat medium temperature sensor TE4 Water heater freeze protection sensor TE5 Air te...

Page 15: ...y slide off the guides Install the filters in the reverse order 2 Heat exchanger inspection once per year Some dust may accumulate on the heat exchanger block even in case of regular maintenance of the filters To maintain the high heat recovery efficiency regular cleaning is required To clean the heat exchanger pull it out flush the heat exchanger with warm detergent solution After clean ing insta...

Page 16: ... Check the drain line operation by filling the drain pan under the unit with water clean the U trap and the drain line if necessary 5 Exhaust louvre shutters and intake diffusers cleaning as required Wash the diffusers and the louvre shutters with warm detergent solution 6 Supply air flow control twice per year The supply duct grille may get clogged with leaves and other objects reducing the unit ...

Page 17: ... is soiled Clean or replace the extract filter The heat exchanger is frozen Check the heat exchanger for freezing Turn the unit off if required and restart it after the freezing danger is no longer imminent Malfunction of the water heater Contact the service centre Noise vibration The impeller s is soiled Clean the impeller s The screw connections are loose Tighten the screw connection of the fans...

Page 18: ... respective details stated on the unit packing and in the user s manual user s failure to ensure timely technical maintenance of the unit external damage to the casing excluding external modifications of the unit as required for its installation and the internal components of the unit alteration of the unit design or engineering changes of the unit replacement and use of the unit assemblies parts ...

Page 19: ...ate is issued following test carried out on samples of the product referred to above Quality Inspector s Stamp This is to certify delivery of the complete unit with the user s manual Customer s signature VUT _____PW EC heat recovery air handling unit has been connected to power mains pursuant to the requirements stated in the present user s manual Company name Address Phone number Installation tec...

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