Helmer i.series Скачать руководство пользователя страница 41

Страница: 41 / 45

Helmer Scientific i.Series

Ultra-Low Freezer

Service and Maintenance Manual

360173-A/C

8.2 Refrigeration Schematic

low pressure gas (warm)

low pressure gas (cool)

low pressure liquid

high pressure liquid (cool)

high pressure
gas (cool)

high pressure gas (warm)

high pressure
gas (warm /
desuperheated)

high pressure gas (hot)

R-508B/

R-601

LOW
STAGE

high
pressure
liquid (cool)

low pressure
gas (cool)
Low Stage /
R-508B/R-601

high
pressure
liquid (cold)

low pressure gas (warm)

low pressure gas (cool)

low pressure liquid

high pressure liquid (cool)

high pressure liquid (warm)

high pressure

liquid (warm)

high pressure gas

low pressure gas (warm)

R-404A

HIGH
STAGE

high pressure liquid (warm)

High Stage / R-404A

AMBIENT AIR

INTAKE

FILTER DRIER

CONDITIONED

SPACE

-80°C

(inside walls)

EVAPORATOR

MULLION HEATER

(around door frame)

CAPILLARY

TUBES

SUCTION LINE

HEAT EXCHANGER

CAPILLARY TUBE

EXPANSION

TANK

OIL
SEPARATOR

LOW STAGE
COMPRESSOR

PRESSURE

SWITCHES

(high stage evap /

low stage cond)

CASCADE HEAT

EXCHANGER

THERMAL EXPANSION
VALVE (TXV)

FILTER DRIER

RECEIVER

SUCTION

LINE HEAT

EXCHANGER

CONDENSER

FAN

HIGH STAGE COMPRESSOR

AIR FILTER

DISTRIBUTOR

SUBCOOL

HEAT

EXCHANGER

TC8

TC7

TC6

TC5

TC4

TC3

TC2

TC1

AN7

RTD5

RTD4

RTD3

RTD2

RTD1

Содержание i.series

Страница 1: ...Ultra Low Freezer Service and Maintenance Manual i Series 360173 A C i Series iUF118 iUF126 i Series iUF116 iUF124...

Страница 2: ...nded as a guide to provide the operator with necessary instructions on the proper use and maintenance of certain Helmer Scientific products Any failure to follow the instructions as described could re...

Страница 3: ...3 3 Alarm Conditions 12 3 4 Settings 13 3 5 Sensor Calibration 16 4 Maintenance 20 4 1 Alarm Tests 21 4 2 Upgrade System Firmware 23 4 3 Test and Replace Back up Battery 23 4 4 Defrost Ultra Low Free...

Страница 4: ...des useful information regarding a procedure or operating technique when using Helmer Scientific products NOTICE Advises the user against initiating an action or creating a situation which could resul...

Страница 5: ...by standards literature or good laboratory practices Use manufacturer supplied power cord only Do not drill holes in the cabinet or door Drilling holes may damage the insulation in models equipped wi...

Страница 6: ...using torque wrench and tighten to 78 8 in lbs 9 Repeat steps 1 8 for low stage compressor 10 Place rear panel over refrigeration compartment and align holes in panel with threaded holes in freezer 1...

Страница 7: ...l begin running on battery power If AC power is lost the monitoring system will automatically disable some features to prolong battery power Data collection will continue until battery power is deplet...

Страница 8: ...used to install tubing for an optional field installed CO2 LN2 back up refrigeration system Install Additional Sensor 1 Remove the plastic plugs on the outside and inside of the cabinet 2 Use a screwd...

Страница 9: ...COM Normally Open NO Normally Closed NC Terminals are dry contacts and do not supply voltage Interface circuit is either normally open or normally closed depending on terminals used Requirements for...

Страница 10: ...up refrigeration system door switch along the handle side of the door This will prevent the door switch from interfering with the vacuum port located near the top of the door External sensors for the...

Страница 11: ...ng Guidelines When loading your freezer take care to observe the following guidelines Never load freezer beyond capacity Always store items within shelves Shelves Remove Shelf 1 Using both hands lift...

Страница 12: ...two minutes on most screens other than those used to enter a password Home Screen Temperature Graph Screensaver 3 2 Home Screen Functions Note Refer to the i C3 User Guide for options available on al...

Страница 13: ...nsor Failure Ambient Temperature A V R Refrigeration System High Stage Compressor Temperature A V R Sensor Failure High Stage Compressor Temperature A V R Sensor Failure High Stage Condenser Temperatu...

Страница 14: ...time enter factory default password of 1234 Default chamber temperature setpoint is 80 C The lowest setpoint that can be set is 86 C Default values for general settings alarm settings and display set...

Страница 15: ...ettings 2 Enter the Settings password 3 Touch minus or plus on the Temperature Setpoint spin box Delay on Start Up Compressor start up is delayed to allow the i C3 monitoring and control system to sta...

Страница 16: ...eached CO2 LN2 Active CO2 LN2 back up refrigeration system has been activated Low Battery Rechargeable battery voltage is low No Battery Rechargeable battery voltage is too low or battery is disconnec...

Страница 17: ...ings are factory preset and should not be changed unless directed by Helmer Technical Service Primary Monitor Control Probe Verify primary monitor control probe is reading chamber temperature correctl...

Страница 18: ...d should be verified on an annual basis Calibrate when required or as dictated by facility standard operating procedures The ambient temperature probe is 100 platinum RTD Ensure the independent thermo...

Страница 19: ...ue 0 C Unit ID Serial number entered at factory Date Format MM DD YYYY Day Not affected maintained in real time clock Month Year Time Format 12 hour Minute Not affected maintained in real time clock H...

Страница 20: ...r to cancel Edit Factory Settings Several of the i C3 screens and functions are configured at the factory The screens and functions listed below are set at the factory and may be changed at the direct...

Страница 21: ...he Door Open alarm Inspect electrical components and wiring terminals in the electrical box for discoloration Contact Helmer Technical Service if any discoloration is found Inspect and clean the conde...

Страница 22: ...gs and record the high alarm setting 2 Move contents within the freezer to gain access to the primary monitor probe 3 Using a heat gun or similar auxiliary heat source use low setting if available app...

Страница 23: ...n freezer door The door open alarm will activate immediately 4 Close freezer door The door open alarm will clear and audible alarm will cease 5 Touch the minus or plus on the Door Open Time spin box t...

Страница 24: ...the plus on the Low Ambient Time Delay setting spin box to return to the original setting Non configurable Temperature Alarms Some temperature alarms are not user configurable As such the alarm setpo...

Страница 25: ...the freezer s ability to maintain temperature If the freezer door or interior doors do not operate correctly or if the freezer cannot maintain the chamber setpoint temperature defrost the chamber Def...

Страница 26: ...switch OFF switch AC ON OFF switch OFF and disconnect the AC power cord from the power receptacle and remove from freezer 3 Move the freezer to a location where water can be captured as the chamber th...

Страница 27: ...base Pivot the top of the grill toward the freezer until the magnets engage Condenser Filter In environments where freezer is exposed to excessive lint or dust the condenser filter may require cleani...

Страница 28: ...tem in Emergency Mode to preserve the inventory stored in the freezer Notes The Emergency Mode alarm will be displayed on the Home screen only If the Emergency Mode alarm is active contact Helmer Tech...

Страница 29: ...alipers 1 Verify door gasket is outside of the desired gap of 0 46 to 0 52 12mm to 13mm measured between the door plastic mullion and the cabinet plastic mullion 2 Using a 2 Phillips screwdriver remov...

Страница 30: ...oosen the adjustment screw in the hinge until the right edge of the door is flush with the right side of the cabinet 4 While holding the adjustment screw with a 20 Torx driver tighten the jam nut with...

Страница 31: ...n installed with proper clearances Check that ambient temperature is in the acceptable range Check the air filter and condenser face and clean or replace as needed Check condenser face clean as needed...

Страница 32: ...if necessary Confirm the sensor is providing resistance in the range of 73 to 110 Replace the sensor if resistance is outside of specified range Check the CP performance by utilizing jumper at J11 Pla...

Страница 33: ...and start components High Stage running Low stage not running Check cascade temperature touch i C3 Settings enter password Device Status Cascade has to reach 35 C before low stage will start Did casca...

Страница 34: ...int and change it if necessary Connections for the chamber temperature sensor are loose Check the sensor wire connection to the control board and secure the connection if necessary A component is faul...

Страница 35: ...utside of specified range The No Battery alarm is activating sporadically Monitoring system back up battery voltage is low Replace the monitoring system back up battery Power supply board voltage is i...

Страница 36: ...l solenoid assembly Not Shown Front bezel without chart recorder door iUF116 800191 1 C Latch roller iUF118 800190 1 D Door handle bushing iUF124 800193 1 E Padlock hasp iUF126 800192 1 F AC ON OFF sw...

Страница 37: ...e top three compartments of the iUF118 and iUF126 models are 9 25 tall All other inner doors are 12 25 tall iUF116 iUF118 12 25 800183 1 E Inner door catch 800186 1 iUF118 9 25 800183 2 F Inner door m...

Страница 38: ...The i C control board is sensitive to static electricity and can be damaged by electrostatic discharge Use proper ESD precautions when handling the control board Label Description Part Label Descripti...

Страница 39: ...tank balancing line low stage 800164 1 U AC power connector F Dryer high stage V Condenser 800153 1 G Dryer low stage W Condenser fan motor includes fan blade 800154 1 H High stage solenoid kit includ...

Страница 40: ...Helmer Scientific i Series Ultra Low Freezer Service and Maintenance Manual 360173 A C 41 8 Schematics 8 1 Electrical Schematic...

Страница 41: ...pressure liquid high pressure liquid cool high pressure liquid warm high pressure liquid warm high pressure gas low pressure gas warm R 404A HIGH STAGE high pressure liquid warm High Stage R 404A AMB...

Страница 42: ...this product as unsorted municipal waste Collect this product separately Use collection and return systems available locally For more information on the return recovery or recycling of this product co...

Страница 43: ...ir labor costs including travel and the cost of refrigerant and supplies necessary to perform authorized repairs Repair service must be performed by an authorized Helmer service agency following the a...

Страница 44: ...Helmer Scientific i Series Ultra Low Freezer Service and Maintenance Manual 360173 A C 45...

Результаты поиска

Содержание i.series

Отзывы:

Похожие инструкции для i.series

Бренды по названию

Популярные бренды

Helmer i.series, Руководство по обслуживанию и ремонту

Результаты поиска

Содержание i.series

Отзывы:

Похожие инструкции для i.series

Бренды по названию

Популярные бренды