SELF-CONTAINED VERTICAL AIR COOLED PACKAGE AIR-CONDITIONERS

Transcription

1 SELF-CONTAINED VERTICAL AIR COOLED PACKAGE AIR-CONDITIONERS Cooling Capacity from 115,000 to 670,000 Btu/hr Btu/hr Smartwise Innovations... Towards Green, Quality & Reliability Solutions SERIES

2 INTRODUCTION GENERAL DESCRIPTION The Series of self-contained Air-Cooled Vertical Package air-conditioners are designed to provide quick, efficient and reliable air-conditioning to buildings with ease of installations, in any freely ventilated outdoor and indoor locations. The unit can either be located in a freely ventilated indoor plantroom or mounted on side walls or mounted around the perimeter, ground level of any buildings which requires quick supply of air-conditioning to the conditioned space. The unit is completely factory wired and packaged with starters and safety controls, pre-charged with full refrigerant charged; and ready for installations. There is no need to run refrigerant pipings and wirings between separate Evaporator-Blower section and air-cooled condensing section. As a self-contained air-cooled packaged air conditioner, there is no need to install cooling tower, condenser water pump, condenser water pipings and fittings etc., to contend with. By just bringing electrical power to the unit, connecting the supply air duct and return air duct from the unit to the conditioned space; it is ready to provide efficient air-conditioning to any conditioned space. Nomenclature 170 Series Self-Contained Vertical Air Cooled Package Air Conditioners Model Code Nominal Capacity, MBH 1

3 AIR-COOLED CONDENSING SECTION The air-cooled condensing section is designed and manufactured, with quality materials and components for efficient performance and high reliability, even in high ambient temperature conditions. The condensing section consists of a heavy gauge, galvanised sheet metal casing which is coated with oven-baked polyester paint, one or multiple hermetic scroll compressors, one or multiple axial condenser fans with direct drive 3 phase induction motor, a large surface area condenser coil, high-low pressure cut-out switch, suction and liquid access valves. With large surface area condenser coil and low noise and highly efficient axial propeller fans, the scroll compressor(s) operates efficiently with overall low noise level FEATURES Casing Constructed of heavy gauge galvanised steel sheet to ensure unit casing rigidity and eliminate casing drumming and vibration Oven-baked epoxy polyester paint finished Excellent finish, weatherability and high corrosion resistance against rust Compressor Hermetic Scroll Compressor(s) type operating at 2950 rpm. Proven high efficiency, low noise and high reliability of compressor(s) design. No-contact scroll design and 100% suction gas cooled motor ensure long operating life. With internal line break or solid state motor protectors. Single and multiple compressors each with independent refrigerant circuits. High low pressure cut-outs are provided for each compressor. Suction and liquid access valves are provided for each compressor. Multiple compressors increase system efficiency by sequential stagging of multiple compressor to match building load. High Efficiency Condenser Coils Staggered 3/8 inner groove tubes with 25-30% increased surface area Mechanically expanded into die-formed corrugated aluminum fins to ensure positive bonding Integral subcooling circuit to maximise system efficiency and reduce flash gas formation in the liquid line Access ports provided on discharge, liquid and suction lines for pressure measurements and charging in of refrigerant Coated condenser coil fins to improve corrosion resistance. Coils can withstand salt-spray test up to minimum 500 hours Condenser Axial Propellers High static axial propellers are suitable for short ducted, horizontal, condenser air discharge. Fan motors of IP55, maximum 960 rpm, 3-phase induction type, with high starting torque and low noise fan operation. 2

4 EVAPORATOR-BLOWER SECTION GENERAL DESCRIPTION The weather-proof evaporator-blower section is designed and manufactured with quality material and components to match the corresponding outdoor condensing section, to provide efficient performance and reliable operation. The Evaporator-blower section consists of a double-wall casing cabinetry, either single blower or twin fans, an evaporator cooling coil, motor and drive package resiliently mounted and isolated from unit casing with vibration isolators, thermal expansion valve(s), flexible canvas connector and heavy duty ball bearings. The Blower fan(s) are supplied with top supply air discharge connections. FEATURES Casing All casing cabinetry are of Double-walled construction with 1 inch. thick polyurethane insulation sandwiched between heavy gauge steel sheets Casing panels are coated with oven-baked polyester paint Removable side panels for easy access to internal components and filters Blower All standard fans are of forward curved Centrifugal double-width, double inlet type, belt driven and suitable for ducted supply air operation. Non-overloading type, backward curved fans are available as option All fan motor and drive assembly are internally isolated from unit casing by either rubber grommets or spring vibration isolators. Coil All evaporator coils are constructed from pre-coated, hydrophilic aluminium fins; with low-surface tension, to prevent moisture carry over; to ensure dry and clean aluminium fins surface during off cycle to prevent mould formation and dirt accumulation; and to improve corrosion resistance. Condensate water is allowed to drain over the condenser coil to improve system efficiency. Filters All standard filters are of 1 inch. thick, washable type Optional bag filter section, angle-filter sections and mixing box section can be provided when specified at time of order Optional Accessories Wired IEC-CE Direct Online Starters Suction, Discharge & Liquid Stop Valves Hot gas bypass Low Ambient Kit (fan cycling) up to 7 C Reverse cycle heat pump Thermostat 3

5 PERFORMANCE TABLE MODEL STD. CAP. MBH STD. Sens. MBH STD. kw Input AIR ON EVAP. AIR TEMPERATURE ON COIL F CFM WB TOTAL SENS TOTAL SENS TOTAL SENS TEMP F kw* kw* kw* MBH MBH MBH MBH MBH MBH Notes 1) Total MBH - Rating are gross capacities, for net capacities, deduct evaporator blower motor heat. 2) Sensible MBH - Capacities are based on at 80 F (26.6 C) air on evaporator. 3) *kw - Compressor kw input. 4

6 PERFORMANCE TABLE Correction Factors For Performance A) Variation of Air on coil Dry Bulb Tempreture F on Sensible Cooling Capacity Dry Bulb Temp F 75 F 80 F 85 F Air on coil wet bulb temperature F 57 F 62 F 67 F 72 F B) Variation in Airflow Rates % of Nominal Airflow Rates Total Cooling Capacity Sensible Cooling Capacity Compressor kw Input 80% % % % % Notes: If the calculated sensible capacity is higher than the total capacity, then the correct sensible capacity is equal to the total cooling capacity. NOMINAL AIRFLOW RATES VERSUS EXTERNAL AVAILABLE STATIC PRESSURE (allowance included for 1 Thick Filters) Model 0.5" WG 1.0" WG 1.5" WG rpm BHP rpm BHP rpm BHP Model rpm BHP rpm BHP rpm BHP Model Nominal CFM Nominal CFM Nominal CFM External Available Static Pressures External Available Static Pressures 1.0" WG 1.5" WG 2.0" WG External Available Static Pressures 1.5" WG 2.0" WG 2.5" WG rpm BHP rpm BHP rpm BHP Notes: For other airflow rates, to consult nearest SMARTech Sales office for fan selection details. 5

7 PHYSICAL DATA DESCRIPTION Unit Electrical Supply Nominal Cooling Capacity(MBH) Nominal Airflow Rates, CFMs MODEL / Hz Total Sensible Quantity Nominal Running Amperes x x x x 2 Compressors Maximum Trip Amperes x x x x 2 Lock Rotor Amperes x x x x 2 Nominal Input Power (kw) x x x x 2 Evaporator Blower Section Air-Cooled Condenser Section Blower Model KAT 12/12 KAT 12/12 KAT 15/11 KAT 15/15 KAT 12/9C2 KAT 12/9C2 KAT 15/11C2 KAT 15/11C2 Motor HP / Ext S.P. inch WG 3.0/1.8" WG 3.0/1.8" WG 3.0/2.0" WG 4.0/2.0" WG 5.0/2.3" WG 7.5/2.8" WG 7.5/2.8" WG 7.5/2.5" WG Evaporator Coil - Rows Deep Evaporator Coil - Face Area ft² Cond. Fan/Motor Qty Fan Diameter (Inch) ½ 33½ ½ 33½ Fan Motor Input kw, ea x x x x 2 Motor RPM Motor N.R.A each x x 2 Cond. Coil, Rows/fpi 3/14 3/14 3/14 3/14 3/14 3/14 3/14 3/14 Cond. Coil, Face Area ft² Cond. Airflow, cfms Filters 1" Thick Size (Inch) - Quantity 16 x x x x x x x x x x x 25-2 Length x Width x Height (inches) Approximate Operating Weight (lbs) 48 x 40 x 96 54x 40 x x 44 x x 44 x 96 83x 44 x 94 83x 44 x x 48 x x 48 x DESCRIPTION Unit Electrical Supply Nominal Cooling Capacity(MBH) Nominal Airflow Rates, CFMs Compressors Evaporator Blower Section Air-Cooled Condenser Section MODEL Total Sensible Quantity Nominal Running Amperes 22.2 x x x x x 4 Maximum Trip Amperes 34.0 x x x x x 4 Lock Rotor Amperes x x x x x 4 Nominal Input Power (kw) 12.8 x x x x x x 2, 22.2 x x 2, 34.0 x x 2, x x 2, 12.8 x 2 NOTE: Nominal cooling capacities rated at air on evaporator coil of 80 F DB/ 67 F WB and ambient air on condenser coil of 95 F 22.2 x x x 2, 34.0 x x 4 Blower Model KAT 15/15C2 KAT 15/15C2 FDA355T2 FDA400T2 FDA 400 T2 FDA 400 T2 FDA 400 T2 Motor HP / Ext S.P. inch WG 10.0/2.8" WG 15.0/2.8" WG 15.0/3.0" WG 15.0/3.0" WG 20.0/3.2" WG 25.0/3.3" WG 25.0/3.3" WG Evaporator Coil - Rows Deep Evaporator Coil - Face Area ft² Cond. Fan/Motor Qty Fan Diameter (Inch) 33½ 31½ 31½ ½ 31½ Fan Motor Input kw, ea 1.8 x x x x x x x 3 Motor RPM Motor N.R.A each 3.8 x x x x x x x 3 Cond. Coil, Rows/fpi 3/14 3/14 4/14 4/14 4/14 4/14 4/14 Cond. Coil, Face Area ft² Filters 1" Thick Size (Inch) - Quantity Length x Width x Height (inches) Approximate Operating Weight (lbs) 340 Cond. Airflow, cfms x x x x x x x / Hz 18 x x x x x x x x x x 48 x x 60 x x 60 x x 60 x x 60 x x 60 x x 60 x

8 DIMENSIONAL DATA Note: All dimensions are in inches. 7

9 DIMENSIONAL DATA Note: All dimensions are in inches. 8

10 DIMENSIONAL DATA Note: All dimensions are in inches. 9

11 DIMENSIONAL DATA - TYPICAL OUTDOOR INSTALLATION - TYPICAL INDOOR INSTALLATION Note: All dimensions are in inches. 10

12 Smartech Sales & Services Sdn. Bhd. ( K) No.15, Jalan PJS 1/27, (Jalan Petaling Utama 6), Petaling Utama, Batu 7, Off Jalan Klang Lama, Petaling Jaya, Selangor. T: / F: W: Specifications in this catalogue are subject to change without notice in order for SMARTECH to bring the latest innovations to their customers