QZSR Fan Coil. Key features. Specifications. Product code example Cassette Unit QZSR, QZSR

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1 Key features Vertical or horizontal installation Cooling ( pipes) Heating ( pipes or electrical heater) Available pressure up to 80 Pa ECM version for low energy consumption In line with innovative trends and modern industrial design, the QZSR fan coil range meets today s demanding requirements of performance, size, acoustics, low energy, ease of installation and maintenance. All QZSR fan coils with centrifugal fans are equipped with electric motors which reduce electrical consumption, with 5 speed motors as standard offering greater flexibility in the selection of products. The QZSR fan coil is available with the four pipe model which has a two rows coil giving improved outputs at lower flow and return temperatures. A full range of control options is available offering greater flexibility in the installation of units. An ECM version is available to reduce energy consumption, due to an extreme efficiency, even at low speed. Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb. Entering water temperature: 7 C, Δt 5 C Specifications 8 sizes from to (Q = 0 00 m/h & P = ). -pipe system - or rows coil. -pipe system - or rows additional coil. Centrifugal fans. connected speeds and 5 speeds available. ECM motor for low energy consumption. Low noise level. Easy to install and maintain. Compliant with ERP 0. Table : Standard version Size Speed Air flow m/h Cooling Available pressure Pa Sound pr. L p db(a) Cooling Available pressure Pa Sound pr. L p db(a) 7 7 Product code example Cassette Unit QZSR, QZSR---- Table : ECM version Size Speed Air flow m/h GB 0.0. (0)

2 for the machine is therefore single-phase with voltage of 0-0V and frequency of -Hz. Description Coil 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 /" BSP internal connections and /8" BSP air vent and drain. The coil is not suitable for use in corrosive atmosphere or in environments where aluminium may be subject to corrosion The connections are on the left hand side looking from the air outlet of the unit (see picture). On request or on site the connections can be moved to the other side. Condensate collection tray Made from plastic with an "L" shape fitted on the inner casing. The outside diameter of the condensate discharge pipe is mm Casing Made from mm galvanized steel insulated with polyolefin (PO) foam (class M). 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. Fan assembly The fans have aluminium or plastic material blades directly keyed on the motor with double aspiration and they are dynamically and statically balanced during manufacture in order to have an extremely quiet operation. Electrical motor, standard version The motor is wired for single phase and has five speeds with always-on capacitor. The motor is fitted on sealed for life bearings and is secured on anti-vibration and self-lubricating mountings. Internal thermal protection with automatic reset, protection IP 0, class B. Electrical 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 Volt, single-phase and, with a switching system, it generates a three-phase frequency modulated, waveform power supply. The electric power supply required 9 GB 0.0. (0)

3 QZSR Nominal performances, standard version Nominal performances for -pipe units Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt 5 C MODEL Speed (E) Air flow (E) Available pressure (E) Cooling total emission (E) Cooling sensible emission (E) Heating (E) Dp Cooling (E) Dp Heating (E) Fan (E) Sound power outlet (E) Sound power inlet + radiated (E) Sound pressure level outlet Sound pressure level inlet + radiated MODEL Speed (E) Air flow (E) Available pressure (E) Cooling total emission (E) Cooling sensible emission (E) Heating (E) Dp Cooling (E) Dp Heating (E) Fan (E) Sound power outlet (E) Sound power inlet + radiated (E) Sound pressure level outlet Sound pressure level inlet + radiated Heating Entering air temperature: 0 C Entering water temperature: C Same water flow rate as for the cooling m/h Pa kpa kpa w QZSR QZSR QZSR QZSR m/h Pa kpa kpa W db(a) db(a) db(a) db(a) QZSR QZSR QZSR QZSR Nominal performances for -pipe units Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt 5 C MODEL Speed (E) Air flow (E) Available pressure (E) Cooling total emission (E) Cooling sensible emission (E) Heating (E) Dp Cooling (E) Dp Heating (E) Fan (E) Sound power outlet (E) Sound power inlet + radiated (E) Sound pressure level outlet (*) a) Sound pressure level inlet + radiated m/h Pa kpa kpa W db(a) db(a) db(a) db(a) QZSR Heating Entering air temperature: 0 C Entering water temperature: 70 C, Δt 0 C QZSR QZSR a) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00m reverberation time of 0.5 sec. 9 GB 0.0. (0) QZSR room and a

4 QZSR Nominal performances, ECM version -pipe units Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt 5 C Model Inverter power Speed Air flow Available pressure Total Cooling Sensible Cooling Heating ΔP Cooling ΔP Heating Fan Sound power outlet Sound power inlet + radiated Sound pressure level outlet Sound pressure level inlet + radiated Model Inverter power Speed Air flow Available pressure Total Cooling Sensible Cooling Heating ΔP Cooling ΔP Heating Fan Sound power outlet Sound power inlet + radiated Sound pressure level outlet Sound pressure level inlet + radiated Heating Entering air temperature: 0 C Entering water temperature: C Same air flow as cooling conditions m/h Pa kpa kpa w QZSR ECM QZSR ECM QZSR ECM m/h Pa kpa kpa w QZSR ECM QZSR ECM QZSR ECM pipe units Cooling Entering air temperature: 7 C dry bulb - 9 C wet bulb Entering water temperature: 7 C, Δt 5 C Model Inverter power Speed Air flow Available pressure Total Cooling Sensible Cooling Heating ΔP Cooling ΔP Heating Fan Sound power outlet Sound power inlet + radiated Sound pressure level outlet Sound pressure level inlet + radiated a) m/h Pa kpa kpa w Heating Entering air temperature: 0 C Entering water temperature: 70 C, Δt 0 C QZSR ECM QZSR ECM a) The sound pressure levels are 9 db(a) lower than the sound power levels and apply to the reverberant field of a 00m reverberation time of 0.5 sec. 9 GB 0.0. (0) QZSR ECM room and a

5 Technical data, Operation limits Operation limits Highest water inlet temperature Lowest water inlet temperature (For entering water temperatures below + 5 C, contact the technical department) Highest working pressure + 85 C + 5 C 0 bar Water flow limits for row coil (l/h) Model Lowest Highest QZSR QZSR- 000 QZSR QZSR QZSR- 0 QZSR- 00 QZSR QZSR QZSR QZSR QZSR- - Water flow limits for row coil (l/h) Model Lowest Highest QZSR- 000 Water flow limits for row additional coil (l/h) Model Lowest Highest QZSR- QZSR Water flow limits for rows additional coil (l/h) Model Lowest Highest QZSR- 00 QZSR Motor electrical data (max absorption), standard version Model 0/ Hz QZSR W A QZSR QZSR QZSR- 00. Motor electrical data (max absorption), ECM version Model 0/ Hz 9 GB 0.0. W QZSR- 8 5 (0) QZSR- QZSR- 6

6 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. 9 GB (0) C 0 C 0 C 0 C C C 70 C 80 C K

7 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. 9 GB (0) C 0 C C C 70 C 80 C K

8 Dimensions Vertical * Supply frame dimension = E x 9 mm Condensate tray is optional. Horizontal * Supply frame dimension = E x 9 mm Condensate tray is optional. Coil connections or rows coils 9 GB 0.0. Heating additional coil ( or rows) 8 (0)

9 Dimensions, weight, water content Packaging Dimensions (mm) Model D E F G H M N O P R S U X Y Weight (kg) Rows Weight with packaging for size Weight without packaging for size Water content (litres) Size Rows GB (0)

10 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 preassure (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 5m Sabin hou fact o ri e s a s =0 ro o a= ses.05 ms 0.0, of swi fice a= mm s, h 0 i. re a n gh ote h din o alls l ro spit g ro o al r m om oom s, te s a ra d s levi =0 io s. sion tud me ios stud etin ios a= g ro 0. om a= mu s, th si c 0. eat 5 st ro o re s ms o re s clas e Fr 00 iel ef Sound difference DL = Lw - Lp ( db ) 0 d Unit fixed in a corner 5 8 Unit fixed into a ceiling 5 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 5.5 m x. m x.75 m => Room volume : m QZBA-: sound power level at low speed is 0 db(a) Absorption factor a : 0. 9 GB 0.0. Distance from the source : m Direction factor : Dt L : 6 db Sound pressure level : Lp = Lw(A) - L Lp = 0-6 = db(a) 0 (0)

11 Practical guidelines Control system Precautions to be taken before and during installation Units are carefully inspected and tested prior to delivery. 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 driptray but use the drainpipe of the auxiliary driptray for the evacuation of the condensate. It is recommended to seal the joint between the unit and the auxiliary driptray 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. Dispose of packaging material in accordance with local requirements. Electrical connections All motors are tested prior to delivery. 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. 9 GB 0.0. (0) 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. Starting-up 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 driptray 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 5 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. Unit mounted electrical heating elements can influence the sound level of the units. Dirty/clogged filters will increase the sound level and are harmful to the operation and working-expenses of the units.

12 Prolonged operation with a dirty / clogged filter may lead to deterioration of the motor. To avoid breaks caused by ice, please empty the watercircuit when the roomtemperature goes down to 0 C. Accessories QZAZ-6, Electrical heating Watt Code QZSR QZAZ-6-0- QZAZ QZAZ Watt Code QZSR QZAZ-6--0 QZAZ-6-- QZAZ Watt Code QZSR QZAZ QZAZ QZAZ QZSR 0 QZAZ Watt Code QZAZ-0, Auxiliary condensate collection tray to cover valve assembly Intended for QZSR Vertical units Horizontal units All Sizes Left hand unit Right hand unit Product code QZAZ-0-0 QZAZ-0-0 QZAZ-0-0 Air inlet spigot plenum Sizes A B QZSR 66 QZSR 8 QZSR QZSR 5 9 GB 0.0. (0) C D Spigots 8 Nº 8 70 Nº Nº 8 Nº Product code QZAZ QZAZ QZAZ QZAZ

13 Spigot diffuser Sizes A B QZSR 66 QZSR 8 QZSR QZSR 5 C D Spigots 8 Nº 8 70 Nº Nº 8 Nº 9 GB 0.0. Product code QZAZ QZAZ QZAZ QZAZ (0)

14 Standard control valve kit for QZSR -way control valve kit with micrometric lockshield Cooling Valve Table : Characteristics Size A 5 5 B Dimensions C a) (mm) D E DN Valve (Ø) /" /" /" /" Kvs Micrometric lockshield valve DN (Ø) Kvs /" F /" F /" F 0 /" F.5 a) Dimensions +/- 0 mm Table : 0V ON/OFF Honeywell Sized Code fitted QZAZ QZAZ QZAZ QZAZ Code not fitted QZAZ QZAZ QZAZ QZAZ Code fitted QZAZ QZAZ QZAZ Code not fitted QZAZ QZAZ QZAZ Table : V Points (Johnson Controls) Sized GB 0.0. Not available (0)

15 Heating Valve Table : Characteristics a) Size A 0 Dimensions (mm) B C D DN Valve (Ø) /" /" /" Micrometric lockshield valve DN (Ø) Kvs /" F /" F /" F Kvs a) Dimensions +/- 0 mm Table 5: 0V ON/OFF (Honeywell) Sized Code fitted QZAZ----- QZAZ----- QZAZ----- Code not fitted QZAZ QZAZ QZAZ Code fitted QZAZ QZAZ Code not fitted QZAZ QZAZ Table 6: V Points (Johnson Controls) Sized GB 0.0. Not available (0)

16 -way control valve kit IN left, cooling or heating pipes IN right, heating pipes Table 7: Dimensions a) Cooling valve A A Size Dimensions heating valve B B C DN Cooling valve (Ø) /" /" /" /" Kvs Heating valve (Ø) /" /" /" /" DN Kvs a) Dimensions +/- 0 mm Table 8: 0V ON/OFF (Honeywell) Sizes Cooling Fitted QZAZ QZAZ QZAZ QZAZ valve Heating valve Not fitted QZAZ QZAZ QZAZ QZAZ Fitted Not fitted QZAZ----- QZAZ way control valve kit IN left, cooling or heating pipes IN right, heating pipes 9 GB (0)

17 Table 9: Dimensions Size A Cooling C Dimensions valve D 86 8 a) heating valve E H DN Cooling valve (Ø) /" /" /" " Kvs Heating valve (Ø) /" /" /" /" DN Kvs a) Dimensions +/- 0 mm Table 0: 0V ON/OFF (Honeywell) Sizes Cooling Fitted QZAZ QZAZ QZAZ QZAZ valve Heating valve Not fitted QZAZ QZAZ QZAZ QZAZ Fitted Not fitted QZAZ QZAZ Table : V Points (Johnson Controls) Sizes Cooling valve Fitted Not fitted QZAZ QZAZ QZAZ QZAZ Not available 9 GB (0) Heating valve Fitted Not fitted QZAZ QZAZ QZAZ QZAZ Not available

18 Valves pressure drop for -way valve Legend qw = water flow (l/h) Δp = pressure drop (kpa) 9 GB (0)

19 Valves pressure drop for -way valve 9 GB (0)

20 Product code QZSR ductable fan coil unit QZSR-aa-b-c-d Version R = vertical/horizontal basic unit without decorative cabinet Size (aaa) *,, *,, *,,, Water connection (b) Looking into the air outlet (round diffusers) = 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=) 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 5 = -pipe system (two water coils) rows cooling and rows heating Motor arrangement (d) = Standard AC motor - 0V//Hz 5 = ECM motor (0-0V output) 0V//Hz - ONLY sizes* 9 GB (0)