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Turbo Air KUCTB2503, Installation & Operation Manual

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Turbo Air KUCTB2503 Installation & Operation Manual Download Page 2

 

2 

 

CONTENTS 

 

Safety Information ……………………………………  3 

Inspection ……………………………………………… 

3 

Locating Unit Cooler …………………………………  4 

Unit Cooler Piping ……………………………………  6 

Expansion Valve Selection …………………………  7 

Defrost …………………………………………………  

10 

Locating and Mounting Condensing Unit ……… 

 

12 

System Operation ……………………………………   

13 

Unit Cooler Troubleshooting ………………………  15 

System Troubleshooting ……………………………  17 

Field Wiring …………………………………………… 

19 

 

 

 

 

 

 

 

 

 

Summary of Contents for KUCTB2503

Page 1: ...ds Up the Pace of Innovation Part No KUCTB2503 Refrigeration System Installation Operation Manual Please read this manual completely before attempting to install or operate this equipment Unit Cooler Condensing Unit ...

Page 2: ...3 Inspection 3 Locating Unit Cooler 4 Unit Cooler Piping 6 Expansion Valve Selection 7 Defrost 10 Locating and Mounting Condensing Unit 12 System Operation 13 Unit Cooler Troubleshooting 15 System Troubleshooting 17 Field Wiring 19 ...

Page 3: ...to prevent electric shock Please call the specialized installation company or trained personnel when you installing moving operating of the unit Field wiring must confirm to the requirements of units electric specification Inspection A person at the job site to receive material holds responsibility Each shipment should be carefully inspected against the bill of lading The shipping receipt should n...

Page 4: ...ing Unit Cooler close to doors Install like Figure 3 or Figure 4 2 Avoid having them face each other when installing multiple units Install like Figure 5 3 Recommended placement when installing multiple units see Figure 6 H Sapce Required Unit Cooler Height Figure 3 do o r Figure 4 do o r Figure 5 do o r Figure 6 do o r 2H 2H Locate evaporators so that air pattern covers all of the room Do not res...

Page 5: ...d sealant Ends of open hanger channels must be sealed to prevent accumulation of foreign material Refer to Figures 1 through 4 Air flow distance must be considered when coolers or freezers will not accommodate all required evaporators on one wall Refer to Figure 7 Traps on low temperature units must be outside of refrigerated enclosures Traps subject to freezing temperatures must be wrapped with h...

Page 6: ... larger in diameter than horizontal runs Refer to Figure 10 Expansion valves are supplied with clamp for securing bulb to the suction line The bulb must be secured at the evaporator outlet on the side of a horizontal run of suction line before any trap Do not over tighten bulb clamps or deform the bulb in anyway Install all refrigeration system components in accordance with applicable local and na...

Page 7: ...SC 1 1 4 SC ADR163 16300 SBFSE B C HFESC 1 1 4 SC ADR196 19600 SBFSE B C HFESC 1 1 2 SC ADR218 21800 SBFSE B C HFESC 1 1 2 SC ADR273 27300 SBFSE C C HFESC 2 SC ADR393 39300 SBFSE C C HFESC 3 1 2 SC LED042 4200 R 404A 20 29 SBFSE A Z HFESC 1 2 SZ LED068 6800 SBFSE A Z HFESC 1 SZ LED082 8200 SBFSE A Z HFESC 1 SZ LED094 9400 SBFSE A Z HFESC 1 SZ LED126 12600 SBFSE B Z HFESC 1 1 4 SZ LED147 14700 SBFS...

Page 8: ... SBFSE A Z MLD165 16500 SBFSE B Z MLD220 22000 SSE 3 Z MLD253 25300 SSE 3 Z MLD332 33200 SSE 4 Z MLD388 38800 SSE 6 Z MLD442 44200 SSE 6 Z TTA056 5600 R 404A 25 4 SBFSE A C TTA084 8400 SBFSE A C TTA112 11200 SBFSE A C TTA141 14100 SBFSE B C TTA175 17500 SBFSE B C TTE049 4900 R 404A 10 23 SBFSE A Z TTE074 7400 SBFSE A Z TTE099 9900 SBFSE A Z TTE124 12400 SBFSE B Z TTE138 13800 SBFSE B Z MODEL CAPAC...

Page 9: ...8 7 8 7 8 1 1 8 15000 5 8 5 8 7 8 7 8 5 8 7 8 7 8 7 8 7 8 7 8 7 8 1 1 8 7 8 7 8 1 1 8 1 1 8 18000 5 8 7 8 7 8 7 8 7 8 7 8 7 8 1 1 8 7 8 7 8 1 1 8 1 1 8 7 8 1 1 8 1 1 8 1 1 8 24000 5 8 7 8 7 8 7 8 7 8 7 8 1 1 8 1 1 8 7 8 1 1 8 1 1 8 1 1 8 1 1 8 1 1 8 1 1 8 1 3 8 30000 7 8 7 8 7 8 1 1 8 7 8 1 1 8 1 1 8 1 1 8 1 1 8 1 1 8 1 1 8 1 3 8 1 1 8 1 1 8 1 3 8 1 3 8 36000 7 8 7 8 1 1 8 1 1 8 7 8 1 1 8 1 1 8 1 ...

Page 10: ...or O D type L copper tube The above table is maximum suction size and riser size should not exceed horizontal size 2 Suction line size should be selected at pressure drop equivalent to 2 F and reduce estimate of system capacity accordingly 3 For easy oil return use U trap in suction line 4 Consider double suction risers if capacity control can reduce capacity 35 below DEFROST Once ice forms in an ...

Page 11: ...Company This thermostat terminates defrost at 50 10 and prevents the fans from running when the coil temperature is above 40 4 4 And defrost termination fan delay thermostat terminates defrost at 55 12 8 after defrost is finished This will allow fan delay time for eliminating the residual water and slush in the evaporator coil Fan delay time can be eliminated by jumping the fan switch contacts Thi...

Page 12: ...y 180 PSIG B Fan Cycle Pressure Control System Model A Pressure Settings Evaporator Temp Range Fan No Pressure Switch 1 PSIG Pressure Switch 2 PSIG OFF ON OFF ON High 40 to 0 F 1 2 157 228 Extended 30 to 25 F Extra Low 0 to 40 F 1 100 157 2 157 228 100 157 Locating and Mounting Condensing Unit Locating Condensing Unit Condensing Unit must be located and installed where there is an unrestricted are...

Page 13: ...bly shown in Figure 11 the shipping spacer is to be in place during shipment to insure maximum support for the compressor body during transit Before the unit is put in operation the shipping spacer should be removed and discarded Before operating the unit it is necessary to follow these steps 1 Remove the upper nuts and washers 2 Remove and discard the shipping spacers 3 Install the rubber spacer ...

Page 14: ...s the potential for flood back Compressor Superheat Compressor superheat has an effect on system capacity and efficiency Compressor superheat affects compressor life and recommends a minimum of 20 superheat at the compressor Too low a compressor superheat can permit liquid return to the compressor causing damage Too high a compressor superheat can cause high discharge temperature resulting in lubr...

Page 15: ...ck all electrical and refrigerant connections Check if the electrical status is in manual and if there are no holes in the refrigerant lines Start up 2 Check all fans on the evaporator and condensing unit to be sure they are operational and turning the proper direction 3 Check high and low pressure switch pressure regulating valves and adjust if necessary 4 Continue charging until system has suffi...

Page 16: ...e motor Defective timer or defrost thermostat Replace defective component Unit in defrost cycle Wait for completion of cycle Coil does not get cold enough to reset thermostat Adjust fan delay setting of thermostat Ice accumulating in drain panel Defective heater Replace heater Drain line plugged Clean drain line Defective drain line heater Replace heater Defective timer or defrost thermostat Repla...

Page 17: ...ces Check cause of shut down Liquid line solenoid not open Repair or replace coil Noisy Compressor Flooding of liquid refrigerant into crankcase Check expansion valve setting Improper piping support on suction or liquid line Relocate add hangers Worn compressor Replace compressor High discharge pressure Non condensable in system Remove non condensable Too much refrigerant Remove excess refrigerant...

Page 18: ...ondenser coil Clean coil Overcharged refrigerant Reduce charge Compressor loses oil Lack of refrigerant Check for leaks and add refrigerant Excessive compression ring blow by Replace compressor Refrigerant flood back Maintain proper superheat at compressor Improper piping or traps Correct piping Little or no oil pressure Clogged suction oil strainer Clean Excessive liquid in crankcase Check crankc...

Page 19: ...19 Diagram 2 Typical diagram for single evaporator defrost timer only Diagram 3 Typical diagram for single evaporator with defrost timer and single phase heater ...

Page 20: ...20 contactor Diagram 4 Typical diagram for single evaporator with defrost timer and 3 phase heater contactor Diagram 5 Typical diagram for single evaporator defrost timer only TTE TYPE ...

Page 21: ...21 4184 EAST CONANT ST LONG BEACH CA 90808 FAX 562 429 7154 Toll Free 888 900 1002 U S A Canada http www turboairinc net ...

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