EC Motor Fan Coil Units. IMDL-Y Series l/s

Transcription

1 C Motor Fan Coil Units IMDL-Y Series l/s

2 Temperzone s Fan Coil History Company Profile Temperzone Limited is a leading manufacturer and distributor of quality air conditioning and ventilation products throughout the Western Pacific Rim. Corporate Head Office is located in New Zealand with factories in Auckland and Sydney. A network of offices, warehouses and distributors provide local support and representation in Australasia, South ast Asia and China. temperzone s aim is to provide the most competitively priced, reliable and efficient air conditioning equipment available to the international market. A privately owned company, temperzone Holdings Ltd, is the parent company of temperzone ltd (est.956) in Auckland and temperzone Australia pty ltd in Sydney. The wide range of temperzone products are manufactured in Auckland for markets in Australasia and Asia. This range includes air distribution items and fans for New Zealand. The Sydney headquarters acts as both a distribution centre and manufacturer of customised and larger standard air conditioning units specifically for Australia. temperzone s Asia Regional Head Office is located in Singapore. The combined group operations employ over 500 staff. Temperzone have been manufacturing chilled water fan coil units for more than 5 years. The original RCMC units were superseded in the mid 980 s with a new breed of RCMC which were then superseded in the late 990 s with the IMDL range. Prior to the development of temperzone s C motor fancoils, units had all been manufactured with fixed single speed or multi-speed PSC motors. Any changes in the cooling or heating performance had been solely on the basis of varying the water flow by way of a 2-way or -way water regulating/ modulating valve. With the indoor fan running on a constant speed. This left considerable room for improvement in designing higher efficiency models. It is time now to take a step forward with the new IMDL Y version with high efficiency C (lectronically Commutated) motors. C motors allow for the air flow to be controlled over a wider range either by the multiple speeds that are available or by the use of a 0 0V dc variable signal. Speeds as high as 500 rpm and as low as 500 rpm are available by dip switch selection in multi-speed or variable voltage signal. By utilising the C motor technology it is no longer necessary to have the S, M and H models, one model size suits all with the required speed range selected by dip switches Key Features nergy fficient C Motor Significant nergy Savings Independent Fan Operation On-site Adjustable Fan Air Volume Controller Remote Fan Air Volume Adjustment Capability from BMS. 2

3 IMDL-Y Fan Coil Units GNRAL Fan coil units are an integral part of an overall air conditioning system where the energy transfer medium (i.e. chilled or hot water) is circulated by a central plant facility. temperzone offers an extensive range of ducted fan coil units. A variety of options and accessories are available to meet most air conditioning requirements. Low operating cost, energy efficient fan motors are used in all units. asy installation and maintenance add to the cost effectiveness of temperzone IMDL Series fan coil units. All IMDL fan coil units can be handed left or right. Unless otherwise ordered units will be supplied right handed which is the standard handing, i.e. when facing the discharge side of the unit, the water and electrical connections are on the right hand side. TYPICAL APPLICATIONS Office Buildings The low overall height of 260 mm makes them ideally suited to office building applications where false ceiling space is at a premium. Hotels IMDL units are extremely well suited for individual room control. A standard above ceiling installed unit with speed control (available option) is normally used for this type of application. Airport Terminal Buildings temperzone fan coil units are gaining worldwide popularity in airport terminals. These complexes generally consist of a number of areas with very diverse occupancy and capacity requirements. Hospitals The majority of hospital rooms must have a separate and independent air conditioning system. This is to avoid bacterial cross contamination. temperzone fan coil units have been used successfully in these applications. STANDARD FATURS Drain Tray The drain tray is plastic and is removable for ease of cleaning and can be adjusted to slope when the unit is installed level. Motors High efficiency electronically commutated (C) motors are fitted as standard on all units. Motors can be operated on three speeds (site changable) or 0-00% capacity using a 0-0V dc signal supplied by a BMS or sophisticated controller. The motors are resiliently mounted, self aligning and oiled for life. Fans Quiet low line, centrifugal type, double width, statically and dynamically balanced, multi-bladed impellers are used. The position and shape of the fan blades and housing has been developed after extensive testing to achieve minimum noise levels while maintaining a smooth pressure vs air flow curve. Coils Coils are manufactured in rifled copper tubing. All coils are thoroughly tested to 200 kpa. Coil rows are staggered for maximum heat exchange. Three different coil configurations are available refer table on page 5. The coil fins are manufactured as a continuous plate, die formed from epoxy aluminium with a smooth corrugated surface, specially designed to overcome and prevent lint build up. The coil fins are mechanically bonded to the copper tubing which results in a rigid assembly and provides a permanent metallic contact between fins and tube for maximum heat transfer. Casing The casing is manufactured from high quality galvanised steel and internally insulated. Insulation Closed cell foam insulation has been used in the cabinet to ensure no particles are introduced into the air stream. The insulation is foil faced and meets the fire test standards AS 50. (989) and BS 76 parts 6 and 7. Open cell foam is used in the return air section for noise attenuation. LCTRICAL BOX Wiring from the motors terminate in a terminal block in a sheetmetal enclosed electrical box. The box is supplied on the same side as the water connections, but can be changed on site to the opposite side. STANDARD OPTIONS. Return Air Plenum (insulated) with Filter -- filter is mm thick, washable and rated U2. 2. Multi-Outlet Supply Air Insulated Spigot -- sized to suit flexible ducting.. lectric Heat -- stainless steel finned element -- mounted within the unit -- factory fitted -- complete with automatic and manual high temperature safety cutout thermostats required to meet AS/NZS seconds fan run-on time (for heat dissipation) is built into the motor driver board and selected by dip switch. -- Variable capacity control of electric heat via solid state relay (SSR).. Control switches -- on/off and speed rotary switches mounted in a standard or architrave type flush plate. WIRING The electrical supply required (including voltage fluctuation limits) is: phase V a.c. 50 Hz with neutral and earth. ach IMDL unit is fully wired ready to accept the main power supply. ORDR DTAIL Coil Options: - Three row coil for cooling - Four row coil for cooling / - Three row cooling / one row heating - Three row cooling coil + electric heat - Four row cooling coil + electric heat Note: Please specify on your order the size, fan motor type and coil option using the above codes. IMDL * Y- xamples: IMDL 0Y-/ IMDL 60Y- Series Size Coil Option

4 TCHNOLOGY VAV For the last 0 years virtually all fan coil units have operated with a constant fan speed and therefore constant air volume (CAV). Temperature changes in these units were achieved by the water valve, i.e. varying the water volume. With this design, energy was wasted due to fans constantly running at full speed, regardless of the requirement of the thermal zone served. With temperzone s new range of VAV fan coil units, varying air volume results in greater efficiency. Controls The new C motor version IMDL units allow for several methods of control allowing great flexibility to meet the demands of modern buildings expectations. The fan speed could be adjusted for instance as the first step of capacity control before adjusting water flow. Three Speed Selection The fans can be controlled just like their predecessors using three speed selection, high, medium and low. This option is selectable by dip switch and then by using further dip switch settings to select from the available speed ranges that are most suitable for the application. Potentiometer The fans could also be controlled by the fitting of a potentiometer to preset the required speed. This will be particularly useful during onsite commissioning to be able to adjust to obtain the desired air flow. Indoor Fan Speed The indoor fan speed can be Stepped or Continuously Variable. The maximum and minimum operating speeds are decided by the setting of dip switches on the PCB found in the electrical box.. Stepped ( Speed) If using a speed selection switch, the medium speed will always be half way between the maximum (High) and minimum (Low) speeds as selected using the DIP switch & 5 settings. 2. Continuously Variable (0-0V Control) If using a variable 0 0V dc signal (from the BMS or sophisticated controller) then the DIP switch & 5 settings will limit the maximum and minimum speeds/voltages. The fans will not operate until a signal above V is received and will then start at the minimum voltage/speed set using DIP switch & 5. The 0V signal input equates to the maximum volts set on DIP swithes,2 &. Control voltages between these two limits can be used to achieve any desired speed between Min. and Max. rpm. With the Factory Settings (refer above) a signal voltage of between 2V and 0V will be limited to proportion the signal to the motor/s between.2v and 8.7V. Note: Only one control method must be connected at any one time; either Stepped speed control or Variable 0-0V dc, not both. If the input signal drops below 0.7V DC, the fan will run on for either 0 or 20 seconds, dependant on the DIP switch 6 setting, before stopping. If electric heat is fitted, ensure that DIP switch 6 is set for 20 seconds. BMS Many modern buildings these days have Building Management Sytems (BMS) and it is most desirable to control the fan speed variably to meet the building s load demands. The unit can accept a 0-0Vdc signal from the BMS or other sophisticated controller. This option is again selectable by dip switch and likewise so is the allowable speed range. The BMS can be programmed to achieve various beneficial functions such as; maintaining high air flow when on heating first thing in the morning to avoid stratification within the space, reducing the air flow down to say 50 to 60% as a capacity control method prior to adjustment of the water flow. C Motors Brushless C motors within the fan coil units provide a cooler running motor emitting less heat into the supply air. This is achieved as energy savings reduce the fan power to almost a quarter of a comparable PSC motor. The life expectancy of an C motor can be up to twice as long as a comparable PSC motor due to functions such as the soft start which eliminate stress to the mounting bracket or hardware. This improved life expectancy further benefits the building owner by a reduction in maintenance costs.

5 Specification Model IMDL 0Y IMDL 60Y IMDL 90Y IMDL 0Y Nominal Air Flow High 60 Pa external static (l/s) * Fan type forward curved centrifugal double inlet double width No. of fan scrolls 2 2 Motor type Power Source ** lectronically Commutated (C) DC direct drive Phase 20 VoltAC 50 Hz No. of motors 2 Motor Rating (W) Full Load Amps (A) (.2) lectric Heating (kw) *** Max. Current with lectric Heat (A) Heat xchanger type Cooling/Heating Medium Options Finish Test aluminium corrugated plate fins to expanded rifled copper tube chilled water or hot water rows cooling + row heating or rows cooling or rows cooling + electric heat zinc galvanised steel 200 kpa Connection Sizes Cooling Coil (mm) 20 BSP Male (/ ) 25 BSP Male ( ) Connection Sizes Heating Coil (mm) 5 BSP Male (/2 ) Air Filter Type washable G2 / U2 (supplied Standard) No. of Air Filters 2 Air Filter Size (mm) 55 x 2 x 795 x 2 x 05 x 2 x 725 x 2 x Static to allow for Air Filter (Clean) at Nominal Air Flow (Pa) Static to allow for wet surface coil (Pa) 6 8 Weight (/ row, incl. water) (kg) Nett Weight (excl. water) (kg) Shipping Weight approx. (kg) Notes: - * With no filters fitted and with a dry coil surface ** Voltage fluctuation limits V *** Option Only - Solid state relay control for variable capacity. Summary of Choices Size 0 / 60 / 90 / 0 Cooling and Heating Coil Configurations Fan Run On Timer Multi S/A Spigot Handing Rows Cooling + Row Heating Rows Cooling Rows Cooling + lectric Heating C motor driver has in built run on timer for all models 0sec. approx. and selectable to 20sec. when fitting electric heating. Optional xtra Right (Standard) / Left 5

6 IMDL 0Y Cooling Capacity kw ntering Air Temperature 2.0 C db 7.0 C wb Nominal Air Flow 200 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 70 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Flow l/s Air Flow 50 l/s ntering Temperature C Heating Capacity lectric Heating Option.5 kw ntering Air Temperature 2.0 C db Nominal Air Flow 200 l/s ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C Air Flow 70 l/s Air Flow 50 l/s

7 IMDL 0Y Air Handling l/s - Pa 8V 7V 6V 5V V l/s - W Note: Airflows are for dry coil. Reduce airflow by 0% in high moisture removal conditions. Air flows given are for IMDL-Y units without filter installed. Refer page 8 for filter pressure drop A 0.86A.9A A 8V A 7V 6V 60 5V 0 V A 0.7A 0.88A.9A.9A Nominal Face Velocity 2.5 m/s Test Conditions: BS 88 PT2 985 Sound Levels Installation Type A (free inlet and outlet) Direct method of measurement (reverberant room) Return Air Inlet + Case Breakout Measured in decibels re picowatt Octave Band Frequency Hz Vdc Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K * Supply Air Outlet Vdc Octave Band Frequency Hz Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K * *Nominal 7

8 IMDL 60Y Cooling Capacity kw ntering Air Temperature 2.0 C db 7.0 C wb Nominal Air Flow 0 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 00 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 250 l/s ntering Temperature C Heating Capacity lectric Heating Option 2.0 kw ntering Air Temperature 2.0 C db Nominal Air Flow 0 l/s ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C Air Flow 00 l/s Air Flow 250 l/s 8

9 IMDL 60Y Air Handling l/s - Pa 7V l/s - W 280 0V 25 8V Note: Airflows are for dry coil. Reduce airflow by 0% in high moisture removal conditions. Air flows given are for IMDL-Y units without filter installed. Refer page 8 for filter pressure drop. 6V 05 V 5V A 0.67A 0.5A A 0V 00 8V A 7V 60 6V 0 0.8A 5V V.70A A 0.9A 0.7A.0A.9A Nominal Face Velocity 2.5 m/s Test Conditions: BS 88 PT2 985 Sound Levels Installation Type A (free inlet and outlet) Direct method of measurement (reverberant room) Return Air Inlet + Case Breakout Measured in decibels re picowatt Octave Band Frequency Hz Vdc Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K * Supply Air Outlet Vdc Octave Band Frequency Hz Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K * *Nominal 9

10 IMDL 90Y Cooling Capacity kw ntering Air Temperature 2.0 C db 7.0 C wb Nominal Air Flow 00 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 50 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 290 l/s ntering Temperature C Heating Capacity lectric Heating Option.0 kw ntering Air Temperature 2.0 C db Nominal Air Flow 00 l/s ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C Air Flow 50 l/s Air Flow 290 l/s 0

11 IMDL 90Y Air Handling l/s - Pa l/s - W 0V 20 8V Note: Airflows are for dry coil. Reduce airflow by 0% in high moisture removal conditions. Air flows given are for IMDL-Y units without filter installed. 7V 50 Refer page 8 for filter pressure drop. 6V 20 V 5V A 0.97A A 0.5A 0V A 0.8A 5V 6V 7V 8V 20 V 0.2A 0.5A 0.8A.0A.8A.69A Nominal Face Velocity 2.2 m/s Test Conditions: BS 88 PT2 985 Sound Levels Installation Type A (free inlet and outlet) Direct method of measurement (reverberant room) Return Air Inlet + Case Breakout Measured in decibels re picowatt Octave Band Frequency Hz Vdc Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K 0* Supply Air Outlet Vdc Octave Band Frequency Hz Sound Power K SWL db(a) Sound Power Levels (SWL) db 2K K 0* *Nominal

12 IMDL 0Y Cooling Capacity kw ntering Air Temperature 2.0 C db 7.0 C wb Nominal Air Flow 650 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 525 l/s ntering Temperature C ntering Air Temperature 2.0 C db 7.0 C wb Air Flow 25 l/s ntering Temperature C Heating Capacity lectric Heating Option.0 kw ntering Air Temperature 2.0 C db Nominal Air Flow 650 l/s ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C ntering Air Temperature 2.0 C db ntering Temperature C Air Flow 525 l/s Air Flow 25 l/s 2

13 IMDL 0Y Air Handling l/s - Pa 6V 7V l/s - W 00 0V 8V Note: Airflows are for dry coil. Reduce airflow by 0% in high moisture removal conditions. Air flows given are for IMDL-Y units without filter installed. Refer page 8 for filter pressure drop. 5V 50 V A.92A 0 80.A A 20 0V 00 8V 0.67A 7V 80 6V A 5V 0 V 2.6A A 0.7A.2A.72A 2.A Nominal Sound Levels Return Air Inlet + Case Breakout Vdc Sound Power SWL db(a) Octave Band Frequency Hz K 2K K Sound Power Levels (SWL) db * Supply Air Outlet Vdc Sound Power SWL db(a) Face Velocity 2. m/s Octave Band Frequency Hz K 2K K Sound Power Levels (SWL) db Test Conditions: BS 88 PT2 985 Installation Type A (free inlet and outlet) Direct method of measurement (reverberant room) Measured in decibels re picowatt * *Nominal

14 DIMNSIONS (mm) - Right hand models shown (not to scale) IMDL 0Y IMDL 60Y MTG CTR LCTRICAL BOX MOUNTING CNTRS LCTRICAL BOX 75 OVRALL 25 MTG CTR 222 MTG CTR DRAIN 9 OD 25 MTG CTR 75 OVRALL 222 MTG CTR DRAIN 9 OD S/A SPIGOT SUPPLY AIR SPIGOT 52 x 70 WATR CONN'S SUPPLY AIR SPIGOT 762 x 70 WATR CONN'S 255 OVRALL OUT IN 255 OVRALL OUT IN 687 OVRALL 97 OVRALL IMDL 90Y MOUNTING CNTRS Connections IMDL Cooling Heating 0Y 20 BSP Male (/ ) BSP Male (/2 ) 60Y 20 BSP Male (/ ) BSP Male (/2 ) 90Y 25 BSP Male ( ) BSP Male (/2 ) 0Y 25 BSP Male ( ) BSP Male (/2 ) 25 MTG CTR 77 OVRALL 262 MTG CTR LCTRICAL BOX DRAIN 9 OD 50 SUPPLY AIR SPIGOT 02 x OVRALL S/A SPIGOT OUT IN WATR CONN'S 9 OVRALL

15 IMDL 0Y 57 2 MOUNTING CNTRS LCTRICAL BOX 77 OVRALL 25 MTG CTR 262 MTG CTR DRAIN 9 OD OVRALL SUPPLY AIR SPIGOT 2 x 79 S/A SPIGOT WATR CONN'S OUT IN 59 OVRALL OPTIONAL SUPPLY AIR SPIGOTS 00 Model IMDL 0Y IMDL 60Y IMDL 90Y IMDL 0Y Spigots 200 dia (x2) 250 dia (x2) 250 dia (x) 250 dia (x) SPIGOTS TO SUIT FLXIBL DUCTING 5

16 WIRING DIAGRAM: IMDL 0Y-0Y A B C D F G 0 2 Speed Setting OFF ALC DIP Switch Settings FACTORY STTING OFF ON Speed Setting ON 20//50 Supply Client Protection & Isolation Switch L A N Blue Brown Green N L FAN Red White Yellow Blue Speed Range Without lectric Heat LAV IN THIS POSITION Speed Range With lectric Heat (0s Fan run on) (20s Fan run on) LAV IN THIS POSITION DO NOT US DIP Switch Settings DO NOT US Speed Setting MAX Vdc Speed Range Vdc Client Supplied. On/Off Control OR 2. Timeclock On/Off TH TH2 Blue Brown Green N L FAN2 Red White Yellow Blue FAN2 IN IMDL0Y ONLY NOT: Minimum active voltage out limited to 2.2V DC unless off. DIP Switch Refer table for settings ALC INPUTS OUTPUT M H +V +V 0V Out Com L 0V In Above Speed Setting sets the max. speed/voltage (HIGH). Above Speed Range sets the difference between the max. speed and the min. speed/voltage (LOW). With the speed control the medium speed is always halfway between HIGH and LOW. NOT: Do NOT connect BOTH speed L/M/H switch and also 0-0V (DC) signal. Only ON control method may be connected at a time. If in doubt ask! Alternative speed switch LOW MD HIGH L M H COM TB5 TB ALC 0-0V Limit Controller FAN Impeller Assembly 6 Diameter FAN2 Impeller Assembly 6 Diameter PR Power Relay 0-0V (DC) Signal from BMS or other controller 0V 0-0V TACHO FAN TACHO FAN2 0V 0-0V TACHO TACHO2 TB RV MODIFICATION DAT CN APVD Corrected Mains terminal sequence on motors; new control loom (removed terminal joiner); removed 0V DC available N897 L.O.L. Removed 0V DC available; Revised note; New relay between Fan and L, all pin numbers revised N897 L.O.L. temperzone Ltd 205 DO NOT SCAL - ASK Client Wiring Drawn: Apprvd: M.A.H. Date: 8/06/205 Model Fan full load current (FLA) IMDL0Y IMDL60Y IMDL90Y IMDL0Y.A.8A.8A.2A Title: Drawing No: Rev: IMDL 0Y-0Y lectrical Wiring Schematic SHT OF

17 WIRING DIAGRAM: IMDL 0Y-0Y (c/w lectric Heat) A B C D F G 0 2 OFF ALC DIP Switch Settings FACTORY STTING OFF ON ON 20//50 Supply Client Protection & Isolation Switch F L L A F Blue Brown Green F N L FAN Red White Yellow Blue F Speed Setting Speed Setting N N Speed Range Speed Range Without lectric Heat With lectric Heat (0s Fan run on) (20s Fan run on) LAV IN THIS POSITION DO NOT US LAV IN THIS POSITION DO NOT US 8 DIP Switch Settings Speed Setting MAX Vdc Speed Range Vdc. On/Off Switch OR 2. Timeclock On/Off TH Blue Brown Green F N L FAN2 IN IMDL0Y ONLY FAN2 Red White Yellow Blue F NOT: Minimum active voltage 0 9. out limited to 2.2V DC 0 unless off. Above Speed Setting sets the max. speed/voltage (HIGH). Above Speed Range sets the difference between the max. speed and the min. speed/voltage (LOW). With the speed control the medium speed is always halfway between HIGH and LOW. NOT: Do NOT connect BOTH speed L/M/H switch and also 0-0V (DC) signal. Only ON control method may be connected at a time. If in doubt ask! 2 Alternative speed switch NOT: Do NOT apply HAT signal if the FAN is NOT running. The fan speed can be determined from the TACHO option 2V AC { LOW MD HIGH TH2 TB2 COOL COM HAT t L M H COM TB5 TB HST F t MST DIP Switch Refer table for settings ALC INPUTS OUTPUT M H +V +V 0V Out Com L 0V In TH ALC 0-0V Limit Controller HC lectric Heat Contactor FAN Impeller Assembly 6 Diameter FAN2 Impeller Assembly 6 Diameter FROR Fan Run On Relay H Heater lement HST Auto High Temp. T/Stat MST Manual High Temp. T/Stat PR Power Relay SSR Solid State Relay temperzone Ltd 205 DO NOT SCAL - ASK 0-0V (DC) Signal from BMS or other controller Client Wiring 0V 0-0V TACHO FAN TACHO FAN2 Drawn: Apprvd: 0V 0-0V TACHO TACHO2 RV MODIFICATION DAT CN APVD F Swap Mains terminal sequence on motors; removed 0V DC available; N897 L.O.L. F New control loom,removed terminal joiners; PR was between SSR-TB2(COM), now L-Fans N897 L.O.L. TB F M.A.H. Date: 8/06/205 Model Fan full load current (FLA) lectric Heat current lectric Heat kw IMDL0Y IMDL60Y IMDL90Y IMDL0Y.A.8A.8A.2A 6.5A 8.7A.0A 7.A Title: Drawing No: Rev: IMDL 0Y-0Y.Heat c/w SSR F lectrical Wiring Schematic SHT OF

18 Filter Drop U2 rated filter media (standard) PRSSUR DROP (Pa) FINAL PRSSUR DROP 25 Pa INITIAL (Clean Filter) U2 (G2) FILTR FAC VLOCITY (m/s) Filter Area : IMDL 0Y 0. m 2 IMDL 60Y 0.9 m 2 IMDL 90Y 0.25 m 2 IMDL 0Y 0.5 m 2 Suggested Specification Furnish and install temperzone fan coil units as indicated on the schedule. Base Unit The base unit shall be fabricated of galvanised steel and insulated with closed cell foam on the discharge side of the fan. Motor Motors shall be electronically commutated (C) type with the option of stepped speed control or 0-00% variable capacity using a 0-0V dc signal supplied by BMS or sophisticated controller.* Coils Coils shall be comprised of die formed plate type aluminium fins mechanically bonded to high efficiency seamless inner rifled copper tubing. connections shall be male threaded. Cooling coils shall have a manual air vent. Drain Tray The plastic drain tray shall have an adjustment for inducing a positive drainage with the unit level. The tray shall project under the entire length and width of the coil including headers and return bends. The entire drain tray shall be removable to enable a thorough clean. Filters Filters shall be removable, mm thick, washable, rated U2, and mounted in a plastic frame. Filters may be slid out sideways when a return air duct is used. Insultation The base unit shall be insulated with closed cell foam to ensure no particles are introduced into the air steam. Insulation shall be foil faced and meet fire test standards AS 50. (989) and BS 76 parts 6 & 7. Noise Control Standard capacity units shall have a Sound Power Level (SWL) less than 55 db(a). Return air plenums shall be insulated with open cell foam for noise attenuation. lectric Heat lectric elements shall be fin-tube constructed of stainless steel and include both a manual and auto reset high temperature cutout switches (as required to meet AS/NZS ) and have variable capacity control via Solid State Relay (SSR). * The fan/motor may also be set to a single predetermined speed using a potentiometer. 8

19 Notes 9

20 Note: The manufacturer reserves the right to change specifications at any time without notice or obligation. Available from manufactured and distributed by: temperzone limited Head Office, Auckland : 8 Tidal Rd, Mangere, N.Z. Private Bag 90, Otahuhu, NW ZALAND. mail sales@temperzone.co.nz Website: temperzone australia pty ltd Head Office, Sydney : Carnagie Pl. PO Box 68, Delivery Centre, Blacktown, NSW 28, AUSTRALIA. mail sales@temperzone.com.au Website: 0/8 Pamphlet No. 697 temperzone limited 208