ROOF TOP (SERIES SR) 10.8 TO 103 KW 37,000 TO 351,000 Btuh

Transcription

1 ROOF TOP (SERIES ) 10.8 TO 103 KW 37,000 TO 351,000 Btuh These rooftop units are complete, self contained air conditioners fully assembled, wire, charged and tested prior to shipment, each unit is delivered ready for operation after simple electrical and duct connections. This series is applicable for outdoor installation either the roof or concrete slab, for supermarkets, shopping centers, theatres, restaurants, office building and industrial plants. The units are air cooled, eliminating the need for city water, plumbing or cooling towers. 21

2 1. EVAPORATOR SECTION Dual evaporator blowers furnish maximum cooling efficiency over the entire surface of the deep row, copper tube-aluminum fin evaporator coil. Statically and dynamically balanced and belt-driven for quiet operation. Adjustable pulleys permit the selection of precise blower performance for various static pressure conditions. Blower motors are fitted with inherent thermal protectors. 2. COMPRESSORS All models are equipped with hermetic compressors sealed against dirt and moisture. Both compressors have an independent refrigerant circuit and include thermal and pressure limiting devices. Compressors are provided with crankcase heaters. All compressors are mounted on vibration isolators for quiet operation. 3. CONDENSER SECTION The condenser coil has a large face area for maximum efficiency and consists of full collared aluminum fins bonded to copper tubes. Direct-driven propeller fans direct large volume of air through the condenser coils for maximum cooling efficiency. Motors are permanently lubricated, permanent split capacitor type and fitted with inherent overload protectors. 4. CONTROLS All Units are completely internally wired with separate control and power supply terminals. all models are equipped with internal compressor overload protection, high and low pressure controls. 5. CABINET Resistant cabinets are fabricated from heavily zinc coated galvanized steel, chemically cleaned and phosphatized to bond the specially formulated corrosion inhibiting enamel. This automated process provided the unit with an attractive and weather resistant finish. 22

3 SPECIFICATIONS: Model 036Z 052Z 060Z 077Z 104T 122T 154T 208T 244T 307T 360T Nominal cooling capacity at kw ºCDB/19º5 CWB indoor air MBH temp. 35ºC outdoor air temp. Kcal/h Power source v/ph/hz 380/3/50 Unit outside dimension(mm) Height Width Depth Unit net weight Kgs Compressor hermatically sealed Scroll Reciprocate Scroll Reciprocate Quantity Condenser Plate fin (corrugate type) bonded with copper tube Face area m Row/No. of fin Fins/m 2/551 2/551 2/551 3/551 3/551 3/551 3/551 3/551 3/551 3/551 3/551 High Ambient model Row/fins 2/551 2/551 2/551 3/551 3/551 3/551 4/551 4/551 4/551 4/551 4/551 Condenser fan Propeller Dia-No. inch Drive Direct Nominal Airflow rate L/S Condenser motor Permanent split capacitor Power input (each) W Quantity Evaporator Plate fin (slit type) bonded with inner groove copper tube Face area m Row/No. of fin Fins/m 3/551 3/551 4/551 3/551 3/551 3/551 3/551 3/551 3/551 3/551 4/551 Evaporator fan Double inlet centrifugal type (DWDI) D-W-No. inch Drive Direct V-Belt Nominal air flow rate L/S Air flow range (min-max) L/S Evaporator motor Totally enclosed induction motor Power output Kw Quantity Air filter Permanent and washable Quantity/Thickness mm 2/25 6/25 Size mm 311x x x x x x565 Standard component Refrigerant R-22 Metering device Thermostatic expansion valve control system (option) Electronic room thermostat Safety devices Compressor and motor overload protector. High and low pressure switch, filter drier Shipping dimension (mm) Height Width Depth Shipping weight Kgs Notes:- 1. Capacity are gross and do not include deduction for blower motro heat. 2. Other power source are also available on request. 3. For High Ambient Model, the unit can be operated up to 55ºC 23

4 DIMENSIONAL DATA 036Z, 052Z, 060Z 077Z, 104T 122T, 154Z 24

5 208T 244T 307T, 360T 25

6 COOLING PERFORMANCE 50Hz UNIT AFR (CR) EWB ºC ENTERING AIR TEMPERATURE TO CONDENSER (ºC) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI 036ZH 052ZH 060ZH 077ZH 104TH (0.188) (0.22) (0.21) (0.201) (0.231) (0.256) (0.087) (0.111) (0.121) (0.172) (0.201) (0.227) (0.196) (0.227) (0.253) NOTE: 1. Capacity shown are gross and do not include deduction for blower motor heat. 2. Sensible capacity is based on 27º CDB entering evaporator air temperature. Above 27º CDB, add SHC to SHC and below 27º CDB subtract SHC from SHC. SHC can be calculated from, 1.23 (1-CR) (DB-27) AFR SHC = Direct interpolation is allowed to do. Operation out of condition shown needs modification. Please contact our engineering division. LEGEND: AFR : AIr flow rate...l/s CR : Sensible correction factor EWB : Entering evaporator air wet bulb temp...ºc TC : Total cooling capacity...kw SHC : Sensible cooling capacity...kw PI : Compressor power input...kw : Nominal cooling capacity...mbh 26

7 50Hz UNIT AFR (CR) EWB ºC ENTERING AIR TEMPERATURE TO CONDENSER (ºC) TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI 122TH 154ZH 208TH 244ZH 307TH 360TH (0.196) (0.226) (0.196) (0.204) (0.235) (0.256) (0.190) (0.221) (0.246) (0.193) (0.224) (0.249) (0.196) (0.227) (0.252) NA (0.196) NA (0.117) (0.122) NA 27

8 EVAPORATOR FAN PERFORMANCE EVAPORATOR BLOWER 036Z,052Z,060Z is equipped with direct driven motor as standard. UNIT FAN SPEED EXTERNAL STATIC PRESSURE (Pa) HI Z MED LOW 376 HI Z MED LOW HI Z MED LOW Model 077Z to 307Z are possible to adjust RPM of blower to suit the external static pressure. Motor which equipped from factory can be operated above the solid line in the performance table. Variable pitch motor pulley is provided for field adjustment. Model 077Z to 122Z UNIT AIR FLOW L/s EXTERNAL STATIC PRESSURE (Pa) RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW Standard blower motor and drive BLOWER WHEEL MOTOR DIA INCH SIZE SHAFT PULLEY WIDTH DIA QTY. P.D. INCH MM INCH FAN SPEED RANGE FRAME NO. OUT PUT SPEED HP. KW. RPM SHAFT DIA MM PULLEY PDR INCH L L L

9 Model 154Z to 360T UNIT AIR FLOW L/s EXTERNAL STATIC PRESSURE (Pa) RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW RPM BKW Standard blower motor and drive BLOWER WHEEL MOTOR DIA INCH SIZE SHAFT PULLEY WIDTH DIA QTY. P.D. INCH MM INCH FAN SPEED RANGE FRAME NO. OUT PUT HP. KW. SPEED RPM SHAFT DIA mm. PULLEY PDR INCH L M S S S RPM BKW : Fan speed (r.p.m.) : Brake power (kw) : Standard factory provision operating range : Driving accessory modification operating range : Shows fan speed on factory setting : Shows the operating range of of the fan motor based on factory setting. In case the fan motor is used out of the range, change motor size. 29

10 ELECTRICAL DATA Cooling Models Only V / PH / Hz. Voltage Range Min. COMRESSOR NO.1 COMRESSOR NO.2 COMRESSOR NO.3 EVAPORATOR FAN MOTOR CONDENSER FAN MOTOR Max. RNC RLA LRA RNC RLA LRA RNC RLA LRA V/ PH / Hz kw FLA V/ PH / Hz kw FLA 036Z 380 / 3 / /1/ /1/ Z 380 / 3 / /1/ /1/ Z 380 / 3 / /1/ /1/ Z 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ Z 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ T 380 / 3 / /3/ /1/ Notes: 1. RNC is running current at nominal condition. 2. Phase imbalance must not exceed 2% 3. All field installed wiring, devices and fuses must comply with local electrical codes Legend: FLA : Full load amperes A kw : Power output kw LRA : Locked rotor amperes A RLA : Rated load amperes A RNC : Running amperes A Specification in this catalog are subject to change without notice 30