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19 

 

AIR HANDLING UNIT START-UP 

S

WITCHING ON THE 

A

IR 

H

ANDLING 

U

NIT

 

Before first switching on of your Air Handling Unit, verify all previously done actions with below check-list: 

  Air Handling Unit is connected to the ducts 

  Air Handling Unit is connected to the heating and cooling media sources 

  All water coils are filled with water and vented 

  DX coil is properly connected to the DX compressor 

  Electric heater is properly connected to mains 

  All peripheral control elements are properly installed on the AHU and crossed to the switchboard 

  All inspection panels of the AHU are closed and locked 

  Base Air Handling Unit is properly connected to the mains 

If above check list is positively passed, start the Air Handling Unit using main power switch (Figure 29)

 

Figure 29 - Main power switch of the Air Handling Unit 

S

TART

-

UP BY MEANS OF THE 

HMI

 

B

ASIC

 

In this chapter the basic AHU operations with use of HMI Basic interface will be demonstrated. 

L

OOK OF THE 

HMI

 

B

ASIC AND FUNCTION BUTTONS

 

The  HMI  Basic  interface  is  equipped  with  the  following  control 

elements (Figure 30)

 LCD display 

 Mode button 

– located in left-upper corner 

 Time schedule button (clock pictogram) 

– located in left center 

 Adjustment  knob  with  button 

–  combined  knob  and  button  in  one 

located in center of the interface below the LCD display 

 On/Off button (On-Off pictogram) located in the right center 

 Fan speed button (Fan pictogram) 

– located in the right-upper corner 

Figure 30 demonstrates the look of the HMI Basic for the Air Handling 
Unit in Off mode. Besides the Off message, the current time and day 
of  the  week  will  be  displayed  (for  time  and  calendar  settings  refer 

Installation, Operation and Maintenance Manual VENTUS COMPACT 
VVS021c-VVS150c  [EN]

  o

Installation,  Operation  and  Maintenance 

Manual VENTUS Supended VVS005s-VVS030s [EN]. 

T

URNING THE 

A

IR 

H

ANDLING 

U

NIT INTO 

O

N MODE

 

To change the Air Handling Unit into On mode, press and hold the 

 button (Figure 31). 

The interface look will change. Instead of Off message, the temperature 
of the leading temperature sensor will be displayed. Current time and 
day of the week will be be still displayed.  

Mind, that putting the AHU into the ON 

mode doesn’t mean starting the 

fans. This will come in next step. 

 

 

 

 

 

Air Handling Unit main power switch 

Figure 30 - HMI Basic interface. Off mode 

Figure 31 - Air Handling Unit in On mode

 

Содержание Ventus Compact VVS0400c

Страница 1: ...VTS Technology Department Rev 2020 04 30 PLUG PLAY AHU QUICK START UP GUIDE VVSc Floor mounted Compact Units VVSs Ceiling suspended Compact Units...

Страница 2: ...stat for water heater on the air side 8 Strap on temperature sensor on heating water return 9 Water pump group for water heater 9 3 way valve actuator 9 Heating water circulation pump 10 Electric heat...

Страница 3: ...art up by means of the HMI Basic 19 Look of the HMI Basic and function buttons 19 Turning the Air Handling Unit into On mode 19 Running the AHU 20 Change to air temperature set point 20 Start up by me...

Страница 4: ...of the unit is done The VTS company shall not assume any liability for personal injuries or damage to property in case of disobey the regulations and safety requirements Also the company will not ass...

Страница 5: ...on of the VTS products and does not cover all advanced details of the products and their control application Such information is available in all remaining technical and maintenance manuals listed in...

Страница 6: ...nd BMS data EN detailed information all advanced functions of the uPC controller applied in your Air Handling Units User Manual Visualization guide for uPC3 controller EN document covering remote AHU...

Страница 7: ...x VVSS CEILING SUSPENDED COMPACT UNITS The VVSs Floor mounted AHU may be factory fitted indoor application only Depending on the execution location of the terminal box may vary as per below Figure 3 V...

Страница 8: ...n your set AIR TREATMENT FUNCTIONS CONTROL ELEMENTS Below listed control elements are supposed to be obligatory part of your AHU set depending on the range of air treatment functions supported Technic...

Страница 9: ...Carefully read the marks attached to the cables tips and find relevant markings printed on the terminal block below each single terminal Plug relevant cables to the identically marked ports on the ter...

Страница 10: ...d Mind that both of the actuators will be connected in parallel using the 3 way lever connector attached together with the actuators as shown on Figure 9 3 way lever connector shown in low left corner...

Страница 11: ...T heater port WATER PUMP GROUP FOR WATER HEATER NOTE Put a special attention to the way the water pump group is connected to the water heater In order to enable proper regulation of the coil capacity...

Страница 12: ...ds to be connected to the power terminal as shown on the Figure 13 terminals L N PE Figure 13 Connection of the water heater recirculation pump to the power supply source ELECTRIC HEATER POWER SUPPLY...

Страница 13: ...ER SUPPLY AND CONTROL CABLES Make all connections power and control of the electric heater as shown on Figure 14 NOTE Mind swapped sequence of the terminals 2 1 3 Figure 14 Electric heater connections...

Страница 14: ...Figure 15 Permanent bridge on Heater al terminals G0 DI2 3 WAY VALVE FOR WATER COOLER For the unit equipped with water cooling coil water cooler connect its 3 way valve set valve with actuator as show...

Страница 15: ...ulations and settings Due to fact that it is equipped with built in room temperature sensor it should be installed on the wall of air handled room Figure 18 For details refer to the installation manua...

Страница 16: ...compressor supporting summer operation cooling function only follow below steps DX COMPRESSOR ANALOG CONTROL SIGNAL FOR COOLING MODE ONLY For DX compressor enabling smooth capacity control for coolin...

Страница 17: ...ng must be done in the AHU controller settings Refer to Installation Operation and Maintenance Manual VENTUS COMPACT VVS021c VVS150c EN or Installation Operation and Maintenance Manual VENTUS Supended...

Страница 18: ...r heating capacity requirement between 0 50 Signal 2 for cooling or heating capacity requirement between 50 100 Communication cables are not supplied Figure 25 Binary control signals for cooling and h...

Страница 19: ...e connecting the unit to the mains ensure that you are supplied with correct type of cable and minimum length of it Apply relevant cable type and cross section to our unit size as listed in Table 3 Ta...

Страница 20: ...t Apply relevant cable type and cross section to our unit size as listed in Table 4 Table 4 Power supply cables for VVSs Ceiling Suspended Compact Air Handling Units VVSc unit size Power supply standa...

Страница 21: ...ure 30 LCD display Mode button located in left upper corner Time schedule button clock pictogram located in left center Adjustment knob with button combined knob and button in one located in center of...

Страница 22: ...nge the required air temperature set point turn the knob located below the main display of the HMI Basic Figure 33 The required value of the air temperature set point will follow the turns of the knob...

Страница 23: ...irflow is set to medium Comfort fans revolutions set to maximum The handled airflow is set to maximum rated for your unit Standby unit is in standby mode Fans will be periodically triggered to run in...

Страница 24: ...you want to modify to do it toggle between them using Enter button Use arrows keys to change the value of the temperature settings and approve the changes by pressing Enter button Figure 38 Air tempe...

Страница 25: ...ater cooler 3 way valve Port Cooling 12 Figure 17 HMI Advanced port 13 Figure 18 Installation of the HMI Basic interface 13 Figure 19 Connection of HMI Basic 13 Figure 20 Cooling medium source failure...

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