Delta-T RZ-05A Series User'S & Technical Manual Download Page 1 | Manualshive

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User & Technical Manual

RZ-05A, RZ-06A & RZ-08A Series

Rev 2.2

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Summary of Contents for RZ-05A Series

Page 1: ...User Technical Manual RZ 05A RZ 06A RZ 08A Series Rev 2 2 ...

Page 2: ...tnick Update Adjustable Temperature Probe length 2 2 08 04 14 B Slotnick Delete Celsius programming flash drive key Statement of Confidentiality The Manual and other materials contain proprietary information comprising ISC Inc s trade secrets Please maintain the confidentiality of all proprietary information during and after the term of the use agreement Also please refrain from using this proprie...

Page 3: ...ng the Air Conditioner 5 Unit Label 5 Operation 6 Preliminary Testing 6 Mounting the Air Conditioner 7 Unit Specifications 8 Options 10 System Faults 13 Digital Temperature Controller Programming 13 Preventative Maintenance 16 Field Serviceable Parts 17 Safety Information 17 Troubleshooting Guide 18 Physical Dimensions 21 Electrical Schematic 23 Warranty Information 24 Return Material Authorizatio...

Page 4: ...ting the Equipment DELTA T air conditioning equipment is designed manufactured and packed to prevent damage from normal handling shock and vibration during shipment It is necessary to inspect your equipment upon receipt to ensure that there is no visual or hidden damage Upon receipt of the equipment ensure that it is always top side up as indicated by THIS SIDE UP labels This ensures that the comp...

Page 5: ... rotary compressors without damaging the compressor If air conditioner is to be shipped or transported at any time pack in original packaging and strap to pallet to prevent damage Air conditioner must be kept upright at all times Air conditioners are not designed to be shipped attached to an equipment enclosure Air conditioners shipped which have internal damage due to shipping while attached to e...

Page 6: ...ondensate Removal System that changes the excess humidity liquid into a vapor which is then vented to the atmosphere In the event of excess water vapor where the enclosure door has been left open there is an overflow hole on the bottom of every unit Please contact ISC Inc if you encounter excess water coming from your air conditioner Preliminary Testing Before mounting the air conditioner to the e...

Page 7: ... the air conditioner high on the enclosure in order to cool the hot air in the top of the enclosure Position the unit where the cold air can circulate across the width of the enclosure to cool it all the way across Once proper mounting placement is determined turn the enclosure equipment off if possible to prevent damage Drill and cut the holes as indicated on the mounting template Install insulat...

Page 8: ...Model Operating Voltage Range Volts Inrush Current Start Up Current Amps Loading Current Running Current Amps SCCR Short Circuit Current Rating Amps Recommended Fuse Selection Amps KVA Rating K Watts Refrigerant Type Refrigerant Amount ounces Low High Unit Pressures psi RZ 05A 126 110 120 23 42 7 26 2 12 Amp Class CC CCMR Time Delay 0 85 R422d 12 50 188 300 RZ 05A 236 220 240 19 15 3 76 2 10 Amp C...

Page 9: ...l Capacity Rating 8 000 BTUH Standard Maximum Ambient 125 F Unit Weight 100lbs 120 230VAC 140lbs 480VAC Model Operating Voltage Range Volts Inrush Current Start Up Current Amps Loading Current Running Current Amps SCCR Short Circuit Current Rating Amps Recommended Fuse Selection Amps KVA Rating K Watts Refrigerant Type Refrigerant Amount ounces Low High Unit Pressures psi RZ 08A 126 110 120 42 41 ...

Page 10: ...ptimum constant low current in the compressor motor during the non cooling state This option provides internal heat to the compressor to protect it from stalls and hard starts during long periods of compressor off state Dry Contact This option provides an early warning capability to your enclosure to aid in the protection of your expensive equipment The Dry Contact is programmed with an individual...

Page 11: ...t 650 Watt 950 Watt Default Settings 55 F Heat Set Point 3 F Differential At the default settings the heater output turns on at 52 F and operates until the temperature has reached 55 F Refer to Advanced Digital Temperature Controller Programming section on this manual for details on changing these parameters Special Programming All DELTA T Air Conditioners have a Special Programming option for sel...

Page 12: ...mperature at any specific location of your enclosure Ethernet IP Controller Output This option provides the ability to communicate with the DELTA T Air Conditioner controller via the Ethernet IP protocol You can monitor and control all settings from a remote location with a PLC Full specifications will be provided with this option For full details refer to the Ethernet IP Option Specifications inc...

Page 13: ...e delay A thermal overload protects the compressor against faults In the event that the snowflake status LED is not flashing on the display and the compressor is not running an internal fault may have occurred on the unit Refer to the Troubleshooting Guide in this manual Digital Temperature Controller Programming For the end user this section will provide all the necessary information to view and ...

Page 14: ...o display its value 4 Use the UP or DOWN arrow key to change its value 5 Press SET to store the new value and move to the following parameter To exit Press SET UP arrow keys or wait 15 seconds without pressing a key Note The set value is stored even when the procedure is exited by waiting for the time out to expire HOW TO LOCK THE KEYPAD 1 Press and hold the UP and DOWN arrow keys simultaneously f...

Page 15: ... start up delay No Output 2 HA2 Condenser High Temperature Alarm P2 145 F for 3 minutes Compressor Off 2 LA2 Condenser Low Temperature Alarm P2 50 F for 3 minutes No Output 2 CA Evaporator Coil Alarm Low Pressure for 2 minutes Compressor Off 2 noP Invalid Probe Selected Low Evaporator Coil No Output Display Only 2Note When both Heater and Dry Contact options are included Dry Contact Alarm Contact ...

Page 16: ...ay bottle is recommended to enhance air filter efficiency Replacement filters are readily available from ISC Customer Service DO NOT operate the air conditioner without the air filter Such operation will allow the condenser coil to become dirty and loose efficiency causing overheating and diminished cooling capacity Dirty condensing coils must be back flush cleaned using proper commercial coil cle...

Page 17: ... 31530 2 for 120VAC 31011 2 for 230VAC 480VAC NE060 31020 2 for 120VAC 31011 2 for 230VAC 480VAC NE080 31020 2 for 120VAC 31025 2 for 230VAC 480VAC Gasket Installation Kit 71403 N568 Evaporator Fan NE050 41005 1 1 for 120VAC 41005 2 1 for 230VAC 480VAC NE060 080 41037 1 1 120VAC 41037 2 1 for 230VAC 480VAC Condenser Fan NE050 41055 1 1 for 120VAC 41055 2 1 for 230VAC 480VAC NE060 080 41045 1 1 120...

Page 18: ... position ON OFF Toggle Switch then Retry Verify input power meets voltage requirements as shown in the UL label YES If problem is still present contact technical support Unit Overheats Insufficient Cooling Is Filter Clean NO Clean Replace Filter YES Are Condenser Evaporator Fans ON NO Check for Faulty Fan replace YES Is Condenser Coil dirty YES Clean Coil NO NO Is Evaporator Coil Frozen Iced YES ...

Page 19: ...Use meter 3 Check for faulty evaporator fan 3 Measure Temperature at Evaporator Verify Heat Load Requirements Is unit capacity adequate for internal head load Possible low refrigerant Is compressor thermal overload open Use ohm meter 3 Check for error code CA LA HA LA2 HA2 P1 or P2 YES NO Check contactor circuit Does it have power 3 NO YES Refer to Alarm Signals in Digital Temperature Controller P...

Page 20: ...controller CA YES NO Check Low Pressure Switch Connections and Verify Pressure switch is closed Use meter 3 P1 or P2 NO YES Check probe connections potential faulty probe LA LA2 HA HA2 YES Refer to Alarm Signals in Digital Temperature Controller Programming Section Fuse Circuit Protection Nuisance Trip Is fuse opening as soon as unit turns on NO YES Check incoming power supply and connections for ...

Page 21: ... Physical Dimensions Water overflow excessive Check drain is it plugged YES NO Clean condensate pan and drain add 1 tbsp bleach to upper pan monthly to kill mold Is Air Conditioner sealed against enclosure properly tightly sealed and door closed YES Contact Customer Service NO Ensure air tight seal between air conditioner and enclosure Make sure door is closed ...

Page 22: ...4421 Tradition Trail Plano Texas 75093 972 964 2700 800 836 7472 URL www iscenclosurecooling com Email iscinfo iscsales com SP ENG 210 100 07 Rev 2 2 22 P a g e ...

Page 23: ...les com SP ENG 210 100 07 Rev 2 2 23 P a g e Electrical Schematics System Schematic Digital Controller Schematic Note Schematics apply to all voltages optional accessories wiring not provided in this document If you require electrical schematic with options contact our technical support and provide your model number ...

Page 24: ...placement of its own product This Warranty does not cover Labor or reimbursement of labor for evaluation removal installation repair or cost of any warranted part except at the ISC factory in Dallas Texas Use of equipment for other than its designed purpose or operating conditions Operation in harsh oily corrosive or other abnormal environmental conditions without the proper filtration sealing pro...

Page 25: ...and address Shipping method Pack unit in a suitable packing for shipment preferably the original packaging if available If suitable packing is not available arrange for packaging to be shipped to you Air Conditioners must be returned in an upright position properly secured to a pallet Tip unit to empty water from the evaporator and boil off pans Clearly mark the RMA number on the box Customer will...

Page 26: ... wires to air conditioners equipped with a Wago power terminal block 1 Remove cover from chassis using T25 Torx bit 2 The sequence of the connecting the wires is from LEFT TO RIGHT 3 Connect each wire as shown by lifting the lever and inserting the wire into the receptacle directly below Snap the lever down to secure the wire in place 4 If wires need to be removed raise the lever directly above ea...

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