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The unit has the following operating logic:

Warm stale extract air from the room flows to the unit, where it is filtered by the extract filter. Then the air is moved through the rotary 

heat exchanger and is exhausted outside with the exhaust fan. Clean cold air from outside is moved to the intake filter. Then filtered air flows 

through the rotary heat exchanger and the water heater where it is warmed up to the pre-set temperature value and is moved to the room 

with the supply fan.

Heat energy of warm extract air is transferred to clean intake fresh air from outside and warms it up in the rotary heat exchanger. Heat 

recovery minimizes thermal energy losses and space heating expenses in cold seasons.

The unit is a framework construction that includes a frame made of rigidly fixed sandwich panels. The three-layer sandwich panels are made 

of aluminium and galvanized sheets, internally filled with a heat- and sound-insulated layer of mineral wool.

The air handling unit is equipped with quick-detachable service panels for scheduled repair and maintenance operations.

Route power and ground cables through the screwed cable glands to connect those to the terminal block located in the control unit. The 

wiring diagram is shown on the inner side of the control unit cover.

UNIT DESIGN AND OPERATING LOGIC

INTAKE AIR

EXHAUST AIR

SUPPLY AIR

EXTRACT AIR

Exhaust fan
Rotary heat exchanger
Extract filter
Control unit

Supply fan
Water heater
Intake filter

Unit operation logic

(service side view)

Summary of Contents for VUT R 1200 WH EC A17

Page 1: ...900 WH EC A17 VUT R 1200 WH EC A17 VUT R 1500 WH EC A17 VUT R 2000 WH EC A17 VUT R 400 WH EC A18 VUT R 700 WH EC A18 VUT R 900 WH EC A18 VUT R 1200 WH EC A18 VUT R 1500 WH EC A18 VUT R 2000 WH EC A18...

Page 2: ...g and set up 11 Connection to power mains 15 Unit control 16 Technical maintenance 26 Storage and transportation regulations 27 Manufacturer s warranty 28 Acceptance certificate 29 Seller information...

Page 3: ...ing of the VUT R WH EC heat recovery air handling unit hereinafter referred to as the unit UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS Disconnect the unit from power mains prior to any installation...

Page 4: ...the unit generates unusual sounds odour or emits smoke disconnect it from power supply and contact the Seller Do not open the unit during operation Do not direct the air flow produced by the unit towa...

Page 5: ...rse dust soot and oil particles or environments favourable for the formation of hazardous substances toxic substances dust pathogenic germs Relative humidity of transported air must not exceed 80 at a...

Page 6: ...DATA VUT R 400 WH EC VUT R 700 WH EC VUT R 900 WH EC VUT R 1200 WH EC VUT R 1500 WH EC VUT R 2000 WH EC Voltage V Hz 1 220 240 50 60 Maximum fan power W 2 items x 100 2 items x 105 2 items x 135 2 it...

Page 7: ...49 1210 1326 243 180 340 745 260 700 580 43 365 150 130 VUT R 900 WH EC 249 1210 1326 243 180 340 745 260 700 580 43 365 150 130 VUT R 1200 WH EC 314 1335 1450 373 220 438 745 880 460 43 438 200 166 V...

Page 8: ...line 4 from this point to the right until it crosses the water in out temperature curve e g 70 50 From here draw a vertical line 5 up to the scale representing the heating coil capacity 5 8 kW Water...

Page 9: ...e g 5 C then draw a horizontal line 2 from this point to the left until it crosses the water in out temperature curve e g 70 50 From this point draw a vertical line 3 to the supply air temperature axi...

Page 10: ...inimizes thermal energy losses and space heating expenses in cold seasons The unit is a framework construction that includes a frame made of rigidly fixed sandwich panels The three layer sandwich pane...

Page 11: ...the unit against penetration of foreign objects SAFETY PRECAUTIONS The unit must be mounted to a rigid and stable structure The unit must be suspended using anchor bolts Make sure that the base struc...

Page 12: ...flow connected see the figure below To connect the water heater on direct flow basis relocate the return heat medium temperature sensor to the downstream side of the water heater All the stated calcul...

Page 13: ...l panel 3 Complete the electrical connections according to the external wiring diagram Page 15 4 Secure the rear part of the control panel in the mounting box using the screws supplied 5 Reattach the...

Page 14: ...a wall route the phone cable to the selected location 1 Secure the rear part of the casing in the standard box by means of the round head screws supplied 2 Connect the phone cable to the front part of...

Page 15: ...cable cross section is given for reference only The actual conductor cross section selection must be based on its type the maximum permissible heating insulation length and installation method Use cop...

Page 16: ...nit turns off If the outdoor air temperature drops below 10 C the Winter start mode is activated When activating the unit the water heater is warmed up first the heat medium pump switches on the heat...

Page 17: ...ges The pictograms show the current time of a day status i e Day Nigh and the presence or absence of inhabitants in the serviced spaces Press ESC to exit and return to the standard display mode ESC ex...

Page 18: ...which might show on the display screen and simultaneously press the Up Down and Enter buttons and hold them for 3 5 seconds After this time the message Display address setting 32 appears on the displa...

Page 19: ...meter edits and exiting the submenu Parameters Access to the additional parameters menu THE SERVICE SETTINGS ARE PROGRAMMED AT THE FACTORY THESE SETTINGS MAY BE CHANGED ONLY BY QUALIFIED SPECIALISTS U...

Page 20: ...is provided by the temperature sensor built into the supply duct upstream of the heat exchanger UNIT OPERATION MODE SELECTION The unit has 4 operation modes To select the desired mode set the cursor a...

Page 21: ...ARAMETERS To enter the user parameter menu press the button Use the and buttons to select the desired menu item and press the button to enter 1 System information To view the system information enter...

Page 22: ...e using the and buttons Schedule setup This mode can be enabled only from the pGD1 control panel When using th Tune the schedule is set up according to the th Tune control panel description 1 Day sele...

Page 23: ...is done by setting exception periods Exception period setting To select a parameter press the button Then use the and buttons to set the desired parameter value Setting up special days Page 3 4 While...

Page 24: ...program up to three entries Set the fan speed and temperature for each setpoint UNIT PARAMETER SETUP To set up the unit parameters enter the user parameters menu and select Parameters The Parameters m...

Page 25: ...room temperature Page 4 04 Hour meter operation On elapsing of the filter replacement interval 3 000 hours by default the system will generate a filter replacement alert To reset the filter replacemen...

Page 26: ...vice panels in place 3 Remove the side panels 4 Pull the filters to remove 5 Replace the filters in the reverse order 1 2 3 SEQUENCE OF FILTER REMOVAL 2 Heat exchanger maintenance once per year Some d...

Page 27: ...e the extract filter Unit in Cooling mode Check the unit operation settings Noise vibration The impeller s is soiled Clean the impeller s The fan or casing screw connection is loose Tighten the screw...

Page 28: ...dismounted by the user Mismatch of the unit model and the brand name with the information stated on the unit packing and in the user s manual User s failure to ensure timely technical maintenance of t...

Page 29: ...omplete unit with the user s manual Customer s Signature VUT R___ WH EC A ____ heat recovery air handling unit has been connected to power mains pursuant to the requirements stated in the present user...

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