QZB "Standard" comfort fan coil

Transcription

1 Key features Vertical or horizontal installation Concealed installation or with decorative cabinet Cooling ( pipes) and heating ( pipes or electrical heating) ECM version for low energy consumption The QZB fan coil range meets today s demanding requirements of performance, size, acoustics, low energy, ease of installation and maintenance. The QZB fan coil unit has been designed around a platform of models, versions and accessories. Designed around different versions, the extensive range includes wall and ceiling mounted units, exposed or concealed with centrifugal fan. All QZB fan coils are equipped with electric motors which dramatically reduce electrical consumption of up to 0% comparative to previous models, with speed motors as standard offering greater flexibility in the selection. Also available is an ECM version which offers a possibility to reduce energy consumption, thanks to an extreme efficiency, even at low speed. The QZB model is complemented with a full range of options and accessories covering items such as electrical heating battery, air inlet/outlet diffusers and condensate pumps. Specifications Quick Selection Low noise level. Entering air temperature: 7 C dry bulb - 9 C wet bulb. Entering water temperature: 7 C, Δt C Std. speed connected Air flow m/h GB sizes from 0 to 90 (Q = m/h & P = kw). -pipe system - or rows (cooling or heating). -pipe system - or additional rows for heating. versions (A, F, M, T) to cover all general fan coil applications. Innovative design. ECM motor for low energy consumption ( sizes, ) Cooling, standard version Size QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB- QZB-7 QZB-7 QZB-8 QZB-8 QZB-9 QZB-9 Fan Coil Unit QZB Easy to assemble, use and maintain. Cooling kw () Sound pr. L p db(a) Available pressure up to 0 Pa. Product code example Fan Coil Unit QZB----

2 Description Motor, ECM version Three phase permanent magnet brushless electronic motor that is controlled with current reconstructed according to a BLAC sinusoidal wave. The inverter board that controls the motor operation is powered by 0 V, single-phase and, with a switching system, it generates a three-phase frequency modulated, wave form power supply. The electric power supply required for the machine is therefore single-phase with voltage of 0-0 V and frequency of 0-0 Hz. Heat exchanger It is manufactured from drawn copper tube and the aluminium fins are mechanically bonded onto the tube by an expansion process. The coil has two ½ inch BSP internal connections and /8 inch BSP air vent and drain. Flow and return pipe connections are situated at the same end on the left or right side looking into the air outlet of the unit. Decorative cabinet Made of galvanized and prepainted steel casing. The plastic top grid has fixed louvres and is reversible in order to distribute the air in two different directions. This must be specified on the order but are also easily reversible on site. Drip tray Made from plastic with an "L" shape fitted on the inner casing. The outside diameter of the condensate discharge pipe is mm. Standard colours: top grid: Pantone 7C (light grey) frontal sheet: RAL 900 (white) other colours on request. Basic unit Made of galvanized steel with closed cell insulation. Filter Polypropylene cellular fabric regenerating filter. The filter frame of galvanized steel is inserted into special plastic sliding guides fastened to the internal structure for easy insertion and removal of the filter. Filter presence is highlighted by a plastic front cover featuring the same colour as the delivery grid. Fan deck The fans have aluminium blades directly keyed on the motor with double aspiration and they are dynamically and statically balanced during manufacture in order to have an extremely silent operation Motor, standard version The motor is wired for single-phase where three out of four or six speeds are connected. The motor is fitted on sealed for life bearings and is secured on anti-vibration and self-lubricating mountings, Protection IP 0, insulation class B. The speed connected in the factory are indicated by, or in the following tables. 909 GB ()

3 Nominal performances, standard version -pipe units rows coil Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt C Air flow m/h Air flow m/h Air flow m/h QZB QZB QZB Heating Entering air temperature: 0 C Entering water temperature: 0 C Same water flow rate as for the cooling QZB QZB QZB QZB QZB QZB = Standard connected speeds. (*) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00 m room and a reverberation time of 0. sec. 909 GB ()

4 rows coil Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt C Air flow m/h Air flow m/h Air flow m/h QZB QZB QZB Heating Entering air temperature: 0 C Entering water temperature: 0 C Same water flow rate as for the cooling QZB QZB QZB QZB QZB QZB = Standard connected speeds. (*) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00 m room and a reverberation time of 0. sec. 909 GB ()

5 Nominal performances, standard version -pipe units row additional coil Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt C Air flow m/h Air flow m/h Air flow m/h QZB QZB QZB Heating Entering air temperature: 0 C Entering water temperature: 70 C, Δt 0 C QZB QZB QZB QZB QZB QZB = Standard connected speeds. (*) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00 m room and a reverberation time of 0. sec. 909 GB ()

6 Nominal performances, ECM version -pipe units Heating Entering air temperature: 0 C Entering water temperature: 0 C Same water flow rate as for the cooling Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt C rows coil Inverter power Air flow m/h QZB ECM Inverter power Air flow m/h QZB ECM QZB ECM QZB ECM QZB ECM rows coil Inverter power Air flow m/h QZB ECM Inverter power Air flow m/h QZB ECM QZB ECM QZB ECM QZB ECM = Standard connected speeds. (*) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00 m room and a reverberation time of 0. sec. 909 GB ()

7 Nominal performances, ECM version -pipe units row additional coil Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt C Inverter power Air flow m/h QZB ECM Inverter power Air flow m/h Heating Entering air temperature: 0 C Entering water temperature: 70 C, Δt 0 C QZB ECM QZB ECM QZB ECM QZB ECM = Standard connected speeds. (*) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00 m room and a reverberation time of 0. sec. 909 GB ()

8 Technical data, Operation limits Operation limits Highest water inlet temperature Lowest water inlet temperature (For entering water temperatures below + C, contact the technical department) Highest working pressure + 8 C + C 0 bar Water flow limits for row coil (l/h) Lowest Highest QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB QZB Water flow limits for row coil (l/h) Lowest Highest QZB QZB QZB Water flow limits for row additional coil (l/h) Lowest Highest QZB QZB- 0 0 QZB- 0 0 QZB- 0 0 Water flow limits for rows additional coil (l/h) Lowest Highest QZB QZB- 0 0 QZB QZB QZB Motor electrical data, standard version 0/ 0Hz QZB- 0. W A QZB QZB QZB QZB- 0.7 QZB QZB QZB QZB Note: For QZBT version the maximum installation height is.8 m. On heating it must be payed attention to rooms where the floor temperature is particularly low (for example less than C ). In this situation the floor can cool the lower layer of air to a level that can stop the uniform diffusion of the hot air coming from the unit. Motor electrical data, ECM version 0/ 0 Hz W QZB ECM- 0. QZB ECM- QZB ECM- QZB ECM-7 QZB ECM-9 99 Note: For QZBT version the maximum installation height is.8 m. On heating it must be payed attention to rooms where the floor temperature is particularly low (for example less than C ). In this situation the floor can cool the lower layer of air to a level that can stop the uniform diffusion of the hot air coming from the unit. 909 GB ()

9 Water pressure drop row coil row coil The water pressure drop figures refer to a mean water temperature of 0 C for different temperature, multiply the pressure drop figures by the correction factors K. 909 GB () C C C C C C C C K

10 row additional coil row additional coil The water pressure drop figures refer to a mean water temperature of C for different temperature, multiply the pressure drop figures by the correction factors K. 909 GB () C 0 C 0 C 0 C 70 C 80 C K

11 Acoustic Data Often sound levels are the key influencing factor in the selection of equipment. The notion sound power is often confused with the notion sound pressure. The two notions can be defined as follows : Sound power (Lw) Sound pressure (Lp) Sound power is the output required producing sound pressure waves. It is not, as such, directly measurable. Sound power is established by measuring the sound pressure on the inner surface of a sphere placed around the source. It is measured and stated in Watts. Sound power is therefore a measurement, which is not dependent on area or distance, and it is used as a basis for all acoustic data. This is the alternating pressure produced by waves from a sound source. It is a measure of the noise level or noise intensity. Sound pressure is dependent on the average absorption factor of the room, distance from the sound source, the position of the unit in the room, the occupation and is therefore not suitable for calculations of sound propagation or spread. An explanatory example: The sound power level can be compared with the heating capacity of a boiler. This capacity will remain the same regardless of the thermal characteristics of the installation. The sound pressure level can be compared with the temperature obtained in a room supplied from the boiler. Obviously, the temperature will vary depending upon the room characteristics and so it is with sound pressure. Therefore, accurate comparisons between competing equipment should always be made, in the case of the boiler, by comparing boiler capacity and in case of fan coil units by comparing the sound power levels. Conversion: Sound power level db(a) => Sound pressure level db(a) 0 Absorption surface m Sabin hou fact o ri e s a s =0 ro o a= ses.0 ms 0.0, of swi fice a mm =0 s, ing. h re a hot h el r din o a s l pita ls g ro oom l ro om om s, te s a ra d s levi =0 io s. sion tud ios stud mee ting ios a= ro o 0. ms, a= mu si c 0. the st atre ro o ms o re s s clas e Fr 000 iel ef Sound difference DL = Lw - Lp ( db ) 0 d Unit fixed in a corner 8 0 Unit fixed into a ceiling Delivery factor Unit fixed to the wall Room volume (m ) Unit can radiate in all directions 0, Distance from the sound source in meters Example Office. m x. m x.7 m => Room volume : 0 m QZBA-: sound power level at low speed is 0 db(a) Absorption factor a : GB Distance from the source : m Direction factor : Dt L : db Sound pressure level : Lp = Lw(A) - L Lp = 0 - = db(a) ()

12 QZB s QZBT Horizontal with decorative cabinet - Ceiling installation QZBF Vertical with decorative cabinet - Wall installation QZBA QZBM Horizontal exposed model with underside air intake Vertical with decorative cabinet - Floor installation Note: To connect vertical exposed model units to wall remote controls, use the terminal board adaptor kit QZMZ-0-0. QZBA Vertical concealed without decorative cabinet QZBF Horizontal with decorative cabinet - Ceiling installation Note: The QZBF model can be installed horizontally leaving behind a 00 mm gap for air intake. 909 GB ()

13 Dimensions - Version QZBA without decorative cabinet Vertical * Supply frame dimension = E x 9 mm Horizontal * Supply frame dimension = E x 9 mm Coil connections or rows coils 909 GB Heating additional coil ( or rows) ()

14 Packaging Dimensions (mm) D E F G H M N O P R S U X Y Weight (kg) + Rows + + Weight with packaging Weight without packaging Water content (litres) Rows GB ()

15 Dimensions - Version QZBF, QZBM, QZBT QZBF QZBM - QZBT Coil connections or rows coils 909 GB Heating additional coil ( or rows) ()

16 Packaging Dimensions (mm) A B C H M N O P R S T V Z Weight (kg) + Rows + + Weight with packaging Weight without packaging Water content (litres) Rows GB ()

17 Practical guidelines Starting-up Precautions to be taken before and during installation The water system must be carefully designed and balanced if the fan coil system is to perform correctly. The units should be installed in such a way to allow easy access for maintenance and adjustments. It is important that the unit is placed level or slopes slightly towards the condensate drain side. Sufficient slope of the drain system shall be assured for a quick condensate removal = % (min. cm/m). The inlet water connections for cooling and heating are always the lower of the coil connection. Although units equipped with water control valves have been carefully checked at the factory, it is advisable to check the tightness of all pipe connections on site using a spanner. Make sure that the condensate will drain off freely. Do not connect the drain system directly to the drainpipe of the main Drip tray but use the drainpipe of the auxiliary Drip tray for the evacuation of the condensate. It is recommended to seal the joint between the unit and the auxiliary Drip tray with a sealer. The distance between the air intake side and the floor or wall should be minimum 00 mm. Make sure that no shelving or furniture obstructs free air circulation. Electrical connections The voltage of the motor is stated on the identification label of each unit. The electrical wiring of the units should be done by an authorised electrician in accordance with the local regulations. The electrical heating elements must only be factory installed. The electrical installation should be of permanent type and the unit protected by means of fuses in the power supply from the mains. Incorrect field wiring will cause motor damage. Always use the same power supply circuit for the fan coil system (fan coil units, thermostats, etc...) Do not connect more than one fan coil unit to one common speed selector switch. In master/slave applications, check carefully the equipotentiality of the electrical connections. Control system When the fans are not running, it is strongly advisable to ensure that the chilled water supply to the coils is automatically shut off, to prevent condensation in and on the unit. Units equipped with electrical heating elements must be connected to a regulation with permanent ventilation. 909 GB () Check that the coils have been cleaned after the installation work. Check the water system and open the valves for the water supply. Check that the water connections do not leak. Open the venting screws and check that there is no air in the coils. Equalisation of the pressure drop across the whole water system is recommended. Check that the fan impeller rotates freely and in the correct direction. Run the fan at high, medium and low speed and check that no mechanical noise can be heard. Check that the unit is well secured and does not vibrate. Check the performance of the supervisory system. Maintenance Before performing any service or maintenance operations, turn OFF the main power supply. Inspect the unit at regular intervals. The frequency of cleaning the coil and the Drip tray depend on local conditions. The coil should be cleaned on both sides. Use a vacuum cleaner with a rubber nozzle. Work carefully to avoid damaging the coil surfaces. Check that the drainpipe is clean and not clogged. The motor bearings are permanently lubricated and do not require lubrication. The standard filters are of the washable type and should be cleaned when clogged. Check min. once a month the filter final pressure drop is recommended up to Pa. The frequency of filter cleaning or replacement is dependent on the dust content in the return air. (our recommendation: Max. month after starting-up period and further min. every months) WARNING! The cooling and heating output of the unit will be reduced if the unit is running with clogged filters. Dirty/clogged filters will increase the sound level and are harmful to the operation and working-expenses of the units. Prolonged operation with a dirty / clogged filter may lead to deterioration of the motor. Unit mounted electrical heating elements can influence the sound level of the units. To avoid breaks caused by ice, please empty the water circuit when the room temperature goes down to 0 C.

18 Accessories Electrical heating element Accessories are supplied not mounted/installed upon delivery delivered unless otherwise stated (0V - F+N) - With security thermostat and relays control Auxiliary Drip tray (for coil) Intended for QZB Vertical units Horizontal units All Left hand unit Right hand unit Product code QZAZ-0-0 QZAZ-0-0 QZAZ-0-0 Capacity ( W ) Frontal air intake kit Feet (for vertical/horizontal unit without cabinet) Consist of bottom closing panel and filter sliding guides, is supplied factory mounted For vertical unit with and without decorative cabinet Product code QZAZ QZAZ--0-0 QZAZ--0-0 QZAZ--0-0 QZAZ--0- QZAZ QZAZ--0-0 QZAZ--0-0 QZAZ--0- QZAZ QZAZ--70- QZAZ--70- QZAZ Product code QZAZ QZAZ Product code QZAZ--0 QZAZ--0 QZAZ--0 QZAZ--0 QZAZ--70 QZAZ--80 Aluminium air inlet grill (to be mounted between the feet) To be ordered in additional the corresponding feet Product code QZAZ-0-0 QZAZ-0-0 QZMZ-0-0 QZMZ-0-0 QZMZ-0-70 Condensate pump Auxiliary driptray is required together with pump but NOT included in the below code Intended for QZB Unit NOT fitted Unit fitted Unit NOT fitted Unit fitted 909 GB () All VERTICAL mounted VERTICAL mounted HORIZONTAL mounted HORIZONTAL mounted Product code QZAZ QZAZ-07-0 QZAZ-07-8 QZAZ-07-0

19 Decorative back panel Inlet plenum box (only for horizontal units with decorative cabinet) Intended for QZBT Made of galvanized steel. Insulated with polyethylene lining All the plenums are supplied with spigots for the connection of flexible ducts. Product code QZAZ-9- QZAZ-9- QZAZ-9- QZAZ-9- QZAZ-9-7 QZAZ Decorative back panel (only for vertical units with decorative cabinet) Intended for QZBM and QZMM ) Type A B C D SpigotsProduct code / Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ Except for electrical heating element. Product code QZAZ-9-0 QZAZ-9-0 QZAZ-9-0 QZAZ-9-0 QZAZ-9-70 Outlet plenum box Made of galvanized steel. Insulated with polyethylene lining. All the plenums are supplied with spigots for the connection of flexible ducts Type A B C D SpigotsProduct code / Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ Nº QZAZ GB ()

20 Control valve kits for QZB way valve with micrometric lockshield valve Cooling, pipes Heating, pipes Table : Dimensions A 0 B A 0 C B 9 00 C 0 D E D 0 0 DN 0 0 DN Cooling valve (Ø) ½" /" /" Heating valve (Ø) /" /" Kvs... Kvs Micrometric lockshield valve DN (Ø) Kvs ½" F ½" F ½" F Micrometric lockshield valve DN (Ø) Kvs ½" F ½" F Table : 0V ON/OFF (Honeywell) Cooling valve, fitted QZAZ QZAZ QZAZ Cooling valve, NOT fitted QZAZ QZAZ QZAZ Heating valve, fitted Heating valve, NOT fitted QZAZ----- QZAZ Cooling valve, fitted QZAZ QZAZ QZAZ Cooling valve, NOT fitted QZAZ QZAZ QZAZ Heating valve, fitted Heating valve, NOT fitted QZAZ----- QZAZ Table : V points (Johnson Controls) 909 GB ()

21 way valve for unit without decorative cabinet (QZBA) IN left, cooling or heating pipes - IN right, heating pipes Table : Dimensions Cooling valve A A Size Heating valve B B C DN 0 0 Valve (Ø) /" /" /" Kvs... Table : 0V ON/OFF (Honeywell) Cooling valve, fitted QZAZ QZAZ QZAZ GB Cooling valve, NOT fitted QZAZ QZAZ QZAZ () Heating valve, fitted Heating valve, NOT fitted QZAZ----- QZAZ-----0

22 way valve IN left, cooling or heating pipes - IN right, heating pipes Table : Dimensions Cooling valve A C Size D 8 8 Heating valve E H DN 0 0 Valve (Ø) /" /" /" Kvs Table 7: 0V ON/OFF (Honeywell) Cooling valve, fitted QZAZ QZAZ QZAZ Cooling valve, NOT fitted QZAZ QZAZ QZAZ Heating valve, fitted Heating valve, NOT fitted QZAZ QZAZ Heating valve, fitted Heating valve, NOT fitted QZAZ QZAZ Table 8: V points (Johnson Controls) Cooling valve, fitted QZAZ QZAZ QZAZ GB Cooling valve, NOT fitted QZAZ QZAZ QZAZ ()

23 Product code Standard comfort fan coil unit QZBx-aa-b-c-d Version (x) A = vertical/horizontal basic unit - without decorative cabinet F = vertical/horizontal unit - with decorative cabinet M = vertical unit - with decorative cabinet - front air intake T = horizontal unit- with decorative cabinet - underside air intake Size (aa),, *, *,,, *, *,,, *, *, 7*, 7*, 8*, 8, 9*, 9* Water connection (b) Vertical unit = Horizontal unit Looking into the air outlet = right hand unit - water connections on the right side of the unit = left hand unit - water connections on the left side of the unit HORIZONTAL UNIT RIGHTHAND UNIT (b=) LEFTHAND UNIT (b=) VERTICAL UNIT HO HO HO HO Coil arrangement (c) = -pipe system (one water coil) - or rows cooling or heating = -pipe system (two water coils) - or rows cooling and row heating = -pipe system (two water coils) - rows cooling and rows heating Motor arrangement (d) = Standard AC motor - 0 V / / 0 Hz = ECM motor (0-0 V output) - 0 V / / 0 Hz - ONLY sizes* Control equipment Control equipment is included in a separate catalogue "Control equipment" and must be specified separately. 909 GB ()

24 Spare parts Below is a table listing the available spare parts for the QFDK Cassette unit Code QZBF QZBF QZBF QZBF QZBF QZBF QZSS QZSS QZSS QZSS QZSS QZBF QZBF QZBF QZBF QZBF QZBF QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBA QZBT QZBT QZBT QZBT QZBT Identification Vertical casing QZBF size - Vertical casing QZBF size - Vertical casing QZBF size - Vertical casing QZBF size - Vertical casing QZBF size 7-7 Vertical casing QZBF size 8-9 Main condensate tray QZBF/QZBM size - Main condensate tray QZBF/QZBM size - Main condensate tray QZBF/QZBM size - Main condensate tray QZBF/QZBM size - Main condensate tray QZBF/QZBM size 7-9 Filter QZBF size - Filter QZBF size - Filter QZBF size - Filter QZBF size - Filter QZBF size 7-7 Filter QZBF size 8-9 Complete fan deck for QZB size - Complete fan deck for QZB size - Complete fan deck for QZB size - Complete fan deck for QZB size - Complete fan deck for QZB size - Complete fan deck for QZB size - Complete fan deck for QZB size 7-7 Complete fan deck for QZB size 8-8 Complete fan deck for QZB size 9-9 Complete fan deck for QZB EC-motor size - Complete fan deck for QZB EC-motor size - Complete fan deck for QZB EC-motor size - Complete fan deck for QZB EC-motor size 7-7 Complete fan deck for QZB EC-motor size 9-9 Frontal filter QZBT/QZBM size - Frontal filter QZBT/QZBM size - Frontal filter QZBT/QZBM size - Frontal filter QZBT/QZBM size - Frontal filter QZBT/QZBM size GB Code QZBT QZBT QZBT QZBT QZBT QZBT QZSS QZSS QZSS QZSS QZSS QZBA QZBA QZBA QZBA QZBA QZBA QZSS QZSS QZSS QZSS QZSS Identification Casing with frontal air grid QZBT/QZBM size - Casing with frontal air grid QZBT/QZBM size - Casing with frontal air grid QZBT/QZBM size - Casing with frontal air grid QZBT/QZBM size - Casing with frontal air grid QZBT/QZBM size 7-7 Casing with frontal air grid QZBT/QZBM size 8-9 Main condensate tray QZBT/QZBA size - Main condensate tray QZBT/QZBA size - Main condensate tray QZBT/QZBA size - Main condensate tray QZBT/QZBA size - Main condensate tray QZBT/QZBA size 7-9 Filter QZBA size - Filter QZBA size - Filter QZBA size - Filter QZBA size - Filter QZBA size 7-7 Filter QZBA size 8-9 Autotransformer (type EMI) QZB size - Autotransformer (type EMI) QZB size - Autotransformer (type EMI) QZB size - Autotransformer (type EMI) QZB size - Autotransformer (type EMI) QZB size - QZSS Autotransformer (type EMI) QZB size -7 QZSS QZSS QZSS QZSS QZSS QZSS QZSS QZSS QZSS Autotransformer (type EMI) QZB size 8-8 Autotransformer (type EMI) QZB size 9-9 Autotransformer (type- ELCO) QZB size - Autotransformer (type- ELCO) QZB size - Autotransformer (type- ELCO) QZB size -7 Autotransformer (type- ELCO) QZB size 8-8 Autotransformer (type- ELCO) QZB size 9-9 Filter support QZBF/QZBA size -7 Filter support QZBF/QZBA size 8-9 ()