Medium Profile Unit Cooler

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Mitchell Rudolph Booth
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1 nter-lo Now available with optional lectronically ommutated Motors Medium rofile Unit ooler atalog 20.2 September, 2008 S A N T A T N N A L N A T U N D A T N Air Defrost 12,00 to 9,000 BTUH lectric Defrost 10,500 to 52,000 BTUH Hot Gas Defrost 10,500 to 52,000 BTUH Walk n oolers & reezers Medium to Large Applications Visit us on the Web: Thomas rench Dr., Scottsboro, AL 3579 Tel: (25) ax: (25)

2 eatures ALATNS nter-lo unit coolers are ideally suited for a wide range of coolers and freezers. A models are designed for use in coolers above 35., G, and H units are suited for 35 coolers, when mechanical defrosts are required, as well as for freezers with temperatures ranging down to -30. Sizes There are 37 models offered, with capacities from 10,500 BTUH up to 9, TD. Air flow ranges from 3,320 M to 9,130 M. HUSNG ach unit is constructed with a rust-free, heavy gauge, textured, aluminum housing which is light weight yet extremely durable. Air and electric defrost models have hinged drain pans to allow for convenient servicing and maintenance (Hot Gas drain pans are not hinged). Slotted hangers are provided on all units for fast installation. L Seamless copper tubes are staggered and mechanically expanded into heavy gauge corrugated aluminum fins to assure maximum heat transfer. Die formed fin collars are provided for accurate fin spacing. Heavy gauge hangers are fastened directly to the tube sheet of the coil to provide high structural strength. GANTS nter-lo unit coolers are designed for most refrigerants including, -22,- 0A, -13a, -502 and lease specify system refrigerant requirements when ordering. A separate compartment is provided for all refrigerant connections which allows ample room for internal mounting of expansion valves. nter-los can also be used with chilled water or glycol solutions, contact factory for selection. ans owerful heavy duty aluminum fans are individually balanced to provide vibration free operation. Wire fan guards Standard heavy gauge wire fan guards are epoxy coated for corrosion resistance. ptional air straighteners are available for increased air throw when required. Motors S-ermanent Split apacitor or -lectronically ommutated, ball bearing type, life lubricated and thermally protected. nter-lo unit coolers use either 1/8 H, 1050 rpm or 1/3 H, 1075 rpm motors. LTAL Available in 115V/1, 208/230/1, 208/230/3, 0/1 or 0/3. nter-los can also be operated on 220/1/50, 220/3/50, 380/1/50 and 380/3/50 power. All components are factory wired to convenient screw type terminal blocks. A large compartment is supplied for all electrical components and is easily accessible by removing the end panel. A DST Available on A series only, for use in coolers at +35 and above. omplete air defrost systems are available from Witt. LT DST These units are available as models. The placement of heaters within the refrigeration coil allows for a more efficient and rapid defrost cycle than other designs. This arrangement enables the energy from the heaters to be conducted from the center of the core out, providing an even defrost pattern. All heaters are factory installed and wired to screw type terminal blocks, allowing for quick field hook up or change over from 1 to 3 phase with the installation of jumper wires. Separate, fixed defrost termination, fan delay and heater saftey controls are factory mounted for optimum performance of each control func tion. Drain pans are heated for fast, reliable drainage. Timer and contactors are available as options. omplete electric defrost systems are available from Witt. ontact the factory for details. HT GAS -VA DST Available on all but the A models. These units include separate fixed defrost termination and fan delay controls which are factory mounted for optimum performance of each control func tion. A hot gas drain pan circuit is provided, thus eliminating the need for electric heat and additional wiring. A heat exchanger/re-evaporator is supplied with every unit. HT GAS VS YL DST Available on all but the TA models. These units include separate fixed defrost termination and fan delay controls which are factory mounted for optimum performance of each control function. A hot gas drain pan circuit is provided, thus eliminating the need for electric heat and additional wiring. A THW Air throw is greatly affected by installation variables. optimum air throw is obtained by high ceiling with no interference from beams, or return air restrictions. Medium profile unit coolers will throw air up to 50 feet under ideal conditions, 0 to 70 feet with air straightners. 2

3 nter-lo nergy per Motor by hanging to More fficient Unit ooler Motors (based on nergy ost of $0.10 per kwh) Motor H and M Standard S Motor nput ower Watts/Mtr ptional Motor nput ower Watts/Mtr educed ower onsumption Watts/Mtr un Time Hrs/Day Motor nergy kwh/yr Motor nergy $/Yr educed Box Load MBTU/Yr ond. Unit nergy kwh/yr ond. Unit nergy $/Yr Yearly $/Motor 1/ , / , Subtract % from total savings for medium temperature 2 run hours per day. ayback Yrs Nomenclature T D - nter-lo Models A = Air Defrost = lectric Defrost H = Hot Gas e-evap G = Hot Gas ev. ycle Number of fans Motor Type = S = Voltage ode A = 115V B = 208/1/0 = 230/1/0 D = /1/0 = /3/0 = 0/1/0 G = 0/3/0 ins per inch BTUH in hundreds 3

4 MAN DATA L 8 MDL M BTUH NUMB +25 A A A A A A A A L MDL M BTUH NUMB +25 A A A A A A A A L MDL BTUH M NUMB +25 A A A A A A A A Z MDL AATY 10 TD (0A, 22) M NUMB * * * * * * * * Z MDL AATY 10 TD (0A, 22) M NUMB * * * * * * * * = lectric defrost H = Hot gas defrost-e evap G = Hot gas defrost-everse cycle or 50HZ applications, multiply BTU/H capacity by.9 correction factor.

5 nter-lo HYSAL DATA 8 L AN MT DATA TNAL -VA NNTNS (in.) SH MDL DA. HAT XH HAT XH LQUD SUTN H.G. DAN WT NUMB QTY. H M (in) (UNMTD.) (UNMTD.) DS DS DS MT (lbs) A / XH150 1/2 7/8 3/ 125 A / XH150 1/2 7/8 3/ 15 A / XH250 1/2 1 1/8 3/ 295 A / XH250 1/2 1 1/8 3/ 330 A / XH250 7/8 1 1/8 3/ 370 A / XH250 7/8 1 3/8 3/ 390 A / XH350 7/8 1 3/8 3/ 30 A / XH350 7/8 1 3/8 3/ 50 L A / XH150 1/2 7/8 3/ 120 A / XH150 1/2 7/8 3/ 10 A / XH150 1/2 7/8 3/ 290 A / XH250 1/2 1 1/8 3/ 320 A / XH250 7/8 1 1/8 3/ 30 A / XH250 7/8 1 1/8 3/ 395 A / XH250 7/8 1 3/8 3/ 15 A / XH350 7/8 1 3/8 3/ 520 L A / XH150 1/2 7/8 3/ 115 A / XH150 1/2 7/8 3/ 130 A / XH150 1/2 7/8 3/ 280 A / XH250 1/2 1 1/8 3/ 310 A / XH250 7/8 1 1/8 3/ 35 A / XH250 7/8 1 1/8 3/ 375 A / XH250 7/8 1 3/8 3/ 00 A / XH350 7/8 1 3/8 3/ 505 Z * / XH150 HA3A 1/2 1 1/8 7/8 3/ 125 * / XH150 HA3A 1/2 1 1/8 7/8 3/ 10 * / XH150 HA3A 1/2 1 1/8 7/8 3/ 295 * / XH250 HAA 1/2 1 3/8 7/8 3/ 320 * / XH350 HAA 7/8 1 3/8 7/8 3/ 35 * / XH350 HAA 7/8 1 5/8 7/8 3/ 50 * / XH500 HA5A 7/8 1 5/8 7/8 3/ 90 * / XH500 HA5A 7/8 1 5/8 7/8 3/ 535 Z * / XH150 HA3A 1/2 1 1/8 7/8 3/ 120 * / XH150 HA3A 1/2 1 1/8 7/8 3/ 135 * / XH150 HA3A 1/2 1 1/8 7/8 3/ 285 * / XH250 HAA 1/2 1 3/8 7/8 3/ 315 * / XH350 HAA 7/8 1 3/8 7/8 3/ 350 * / XH350 HAA 7/8 1 5/8 7/8 3/ 35 * / XH500 HA5A 7/8 1 5/8 7/8 3/ 530 * = lectric defrost G = Hot Gas Defrost: reverse cycle H = Hot Gas Defrost: re-evap 5

6 LTAL DATA TTAL MT AMS - 0 HZ Model S - ermenant Split apacitor Motor - lectronically ommutated Motor Number 115 V 208/230V/1 0V/1 Watts 115V 208/230V/1 Watts 8 A A A A A A A A A A A A A A A A A A A A A A A A * * * * * * * * * * * * * * * * A = Air defrost = lectric defrost G = Hot gas defrost:- everse cycle H = Hot gas defrost: e-vap lectric defrost models are not available in 115V. LT HAT DST AMS - 0HZ MDL 208 V 230 V 0 V HAT MDL 208 V 230 V 0 V HAT NUMB 1 H 3 H 1 H 3 H 1 H 3 H WATTS NUMB 1 H 3 H 1 H 3 H 1 H 3 H WATTS

7 nter-lo LT DST KTS MDL NUMB VAAT 230/1 230/3 0/1 0/3 D-10 D-10 2 VAATS 3 VAATS 230/1 230/3 0/1 0/3 230/1 230/3 0/1 0/3 D-21 D-21 D-2 D-2 D-37 D-37 D-33 D-33 D-3 D-3 D-32 D-32 D-32 D-32 D-32 MDL NUMB VAAT 2 VAATS 3 VAATS 230/1 230/3 0/1 0/3 230/1 230/3 0/1 0/3 230/1 230/3 0/1 0/3 D-10 D-10 D-21 D-21 D-2 D-2 D-2 D-37 D-37 D-37 D-33 D-33 D-3 D-3 D-3 D-32 D-32 D-32 D-32 D-32 LT DST KT MNNTS MDL AUXLAY BLKUT NTATS SQUNNG NUMB TM SWTH LAY HAT AN LAY D A A A 1-25A D A D A 1-25A D A D A 1-25 D A 2 D A A 1-25A A 2 D A A 2 D A 1-25A 2 D A 2 D A 1-25A 2 D A 3 D A 1-25A 3 D A A 1-25A A 3 D A 1-25A 3 D A 3 D A 1-25A 3 Timer nitiates the defrost cycle. also acts as an overide protection device for defrost termination. Auxiliary Switch Mounted on the compressor contactor, it prevents the defrost contactor from operating when the compressor is energized. Block-out elay Serves the same function as the auxiliary switch, except used when a defrost contactor is not required(single phase only). an ontactor Used with 0V motors or when 230v motors are wired for three phase operation. Defrost ontactor arries the amperage load for the heater circuit. ontactor selection is based upon the maximum resistive load rating of the contactor. Sequencing elay rovides interconnection of multiple unit coolers an a single compressor system. This allows each unit cooler to individually terminate defrost on temperature. 7

8 nter-lo DMNSNAL DATA LT AND HT GAS DST A DST MDLS *2-105 *2-10 *3-175 *2-130 *2-150 *3-185 A2-12 A2-19 A3-22 A3-287 A2-15 A2-191 A3-20 A3-305 A A A38-20 A *2-230 *2-270 A2-30 A2-370 A *2-325 *2-320 A2-395 A / / 2 *3-385 A *3-390 *3-0 A3-55 A3-90 A *3-510 *3-520 A3-585 A3-20 A * = lectric defrost H = Hot gas defrost - e evap G = Hot gas defrost - everse cycle G. DMNSNS W A B /N V2 09/ WTT reserves the right to make design changes and modifications to its products without notice. Visit us on the Web: Thomas rench Dr., Scottsboro, AL 3579 Tel: (25) ax: (25)

Inter-Temp MEDIUM PROFILE UNIT COOLER

Inter-Temp MEDIUM PROFILE UNIT COOLER ublication No. U-TA-071A nter-temp MDUM L UNT L Air Defrost 1,00 to 9,000 BTUH lectric Defrost 10,500 to 5,000 BTUH Hot Gas Defrost 10,500 to 5,000 BTUH Walk n oolers & reezers Medium to Large Applications