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before reach power supply) 
failure.

 

correct replace the unit.

 

Unit is ON but display is not 
showing.

 

not powered on. 

Check the power switch is on 
position.

 

Fan does not rotate

 

Fan wiring is loose 

Checking the wiring

 

Fan motor is fail 

Change parts

 

High temperature in cabinet 

The temperature setting of 
outage is too high 

Set the proper temperature set 
point.

 

Refrigerant leaks 

Find leak location and make 
repair welding. Infuse refrigerant 
again

 

Temperature probe is damaged 

Change parts

 

Capillary tube or system is 
blocked by dirt\ greasy 

Clean the capillary tube or 
change filter.

 

High ambient temperature 

Turn on air-conditioner

reduce 

ambient temperature.

 

 

Specifications 

Model 

ULTH-100 

Capacity 

100 LITER 

Rating voltage 

230 V 

Rating Frequency 

50 Hz 

Rated current 

5.5 A 

Compressor 1

st

 stage 

EMBRACO 2155 

Compressor 2

nd

stage 

EMBRACO 2140 

Refrigerant 1

st

 stage 

R-404a (350 gm) 

Refrigerant 2

nd

stage 

R-508b (200 gm) 
R-290 (20 gm) 

Temperature Controller 

PPI ZENEX 44 

Cascade Controller 

Subzero Sz-7569-P 

Voltage Current Protector 

Gelco AaCcSvch 

Design or Specifications will be changed without noticedue to the improvement of performance or functions. 

 

Summary of Contents for ULTH-100

Page 1: ...VICE MANUALN FOR ULTRA LOW TEMPERATURE FREEZER Model No ULTH 100 EASYCOOL REFRIGERATION 2 Colgate Estate B h Chakudia Mahadev Mandir Rakhiyal Ahmedabad 380023 Gujarat INDIA Mobile 91 9824540542 E mail...

Page 2: ...ntrol panel Electrical 4 Installation Pre commissioning Checks 4 Pre commissioning Tests 5 Do s Don ts 6 Operating Instructions 7 Working Principle 7 Programming the Controllers 8 Maintenance Schedule...

Page 3: ...l will be subject to change without prior notice due to the improvement of performance or functions Only trained authorized personnel could operate this Ultra low temperature freezer Only qualified se...

Page 4: ...hinged main door with Door lock and Double circuit of PU gaskets to prevent any air seepage Mounted on heavy duty ball bearing castor wheels for smooth movements with lock Working temperature is from...

Page 5: ...ng Megger test for power cable wiring and control cable wiring Verification of operating sequence for control circuits The Freezer should be located in a clean cool and well ventilated area or in an a...

Page 6: ...n system will be damaged Level the chamber Inspect the conditioner fan inside the chamber Occasionally during shipment the motor is pushed out of vertical alignment As consequence the fan blade will s...

Page 7: ...io visual alarms automatically activated to indicate the same WORKING PRINCIPAL When the main supply is switched ON the controller is in ON position The compressor and fan motor is directly connected...

Page 8: ...ARLY 1 Clean the inner chamber completely 2 Clean the external body fully 3 Check the compressor rating 4 Clean the condenser coil 5 Check any oil trace in refrigerant line 6 Clean the condenser grill...

Page 9: ...of 24 hours Open the side grills to clean the condensing area using a vacuum cleaner air blower Check for loose connections for electrical circuits Check for any loosened components fasteners and corr...

Page 10: ...o not overload cabinet Hot environment Check if the location meets ambient requirements within 15 C to 30 C and away from hot objects Dirty condenser Clean condenser Not enough space for air circulati...

Page 11: ...obe is damaged Change parts Capillary tube or system is blocked by dirt greasy Clean the capillary tube or change filter High ambient temperature Turn on air conditioner reduce ambient temperature Spe...

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