VE-24H-K-HV-VD中文资料

INSTALLATION AND OPERATION MANUAL ELECTRIC HEATERS FOR VAV TERMINAL UNITSPage 1 of 46/20 IOM-EHVAV (Supercedes 4/02)GENERAL INFORMATION•Nailor electric heaters require little or no maintenance.Be sure the heater elements are free of foreign matter,and then check that the connections are tight and proper control interlocks have been made before turning the heater on.•Heaters are open wire type and, except on very small heaters with element wires less than 1 kW, use special ‘arrowhead’ insulators that expose the entire surface area of the element wires to the air stream. This eliminates the possibility of hot spots on the larger wires that can burn the elements in half or cause spalding that enhances hot spots.•All electric heaters ordered from Nailor are manufactured in-house.•All Nailor electric coils are ETL listed for safety under UL 1995 as part of the VAV unit.•All electric heating units have built-in controls for all options required by the engineer.•Single point power connection.INSTALLATION•All single duct terminal units with electric coils are designed to be mounted in a horizontal plane with respect to the "UP" arrow marked on the product label. Fan powered units can be flipped over in the field and will not have "UP" arrow.•Before applying power, make sure electric coils are not damaged.•All field wiring must comply with NEC and local building codes.•Use copper conductors only.•Phase rotation of the incoming power is recommended when connecting three-phase electric coils.•Allow a minimum clearance as specified by NEC in front of all electric coil enclosures.•Always check product label to determine proper wire size and current protection.•These recommendations do not preclude NEC or local building codes that may be in effect.OPERATION•To avoid possible nuisance tripping of the thermal cutouts due to insufficient airflow, a minimum airflow of 70 cfm (33L/s) per kilowatt must be maintained.•For Single Duct Terminal Units, A minimum of .1” w.g. (25Pa) of downstream static pressure is required to ensure proper operation of the heater.Figure 1. Fan Powered Terminal Unit with Electric HeaterFigure 2. Single Duct Terminal Unit with Electric HeaterCAUTION: ELECTRIC SHOCK HAZARD 1. Turn off power before servicing unit.2.Do not operate unit without control cover .NAMEPLATE LABELElectric coil data are incorporated in the nameplate label, which is affixed to the control enclosure cover. The label shows all necessary information required by UL with respect to electrical power and circuit protection requirements.HEATER CONTROL ENCLOSUREFigure 4 shows the interior of a typical heater control enclosure. All components within this space work together to provide safe operation of the heater. Although it is not required to meet NEC requirements, Nailor recommends a door interlocking disconnect switch. This safety switch must be disconnected before the enclosure can be opened. In the absence of a disconnect switch, a terminal block is provided for single point power connection. A ground lug ensures the proper grounding of the unit housing and enclosure. Line fuses and fan motor fuses provide overcurrent protection, and come as an option. An airflow switch de-energizes the heater when it detects no airflow across the elements.In fan powered VAV terminal units, auto-reset limit switches in line with each element provide high temperature protection. A single auto-reset limit switch provides protection for single duct terminal unit heaters. These switches automatically cut the heater off when overheating occurs, and turn the heater back on when the elements have cooled down. Manual-reset limit switches in line with each element provide secondary over temperature protection in single duct terminal units.A control transformer is provided whenever a 24V circuit is required. PE switches (when pneumatic controls are used), like magnetic contactors, are used to energize stages of electric heat. Small heaters may often use a load carrying PE switch as the only control component. When control systems require frequent cycling or silent operation, mercury contactors are available as an option. An SCR control will provide fine space temperature control and highest reliability. For fan-powered terminal units, a fan relay is provided when required or requested.Figure 3. Sample Nameplate Label. Fan Powered Terminal Unit6/20 IOM-EHVAV (Supercedes 4/02) Page 2 of 4Page 3 of 46/20 IOM-EHVAV (Supercedes 4/02)Wiring DiagramsA specific wiring diagram for each heater including all controls is glued to the inside of the control panel door. Another wiring diagram is provided loose in the control box.Heater Element Rack Replacement For Series Fan Powered Terminal UnitsOn series fan Powered Terminal Units, the element rack is removable for replacement. The header plate is located behind a hinged door enclosure on the side of the terminal electric heater section.1. Turn off power supply before servicing.2. Locate the element rack header plate.3. Before removing wires from the element rack header plate, mark where the wires are connected so they can bereconnected correctly on the new element rack.4. Remove the wires and screws holding the heater plate in the coil housing.5. Insert the new element rack into coil housing and replace the screws to secure the element rack.6. Replace the wires.7.Replace the enclosure cover before turning on the power.Figure 4: Typical Line Voltage Control Enclosure BoxHeater Rack Header PlateHeating ElementsElementTerminationsArrowhead InsulatorsFigure 5. Typical element rack for a series Fan Powered Terminal UnitCalgary, Canada Tel: 403-279-8619Fax: 403-279-5035Houston, Texas Tel: 281-590-1172Fax: 281-590-3086Las Vegas, Nevada Tel: 702-648-5400Fax: 702-638-0400Toronto, Canada Tel: 416-744-3300Fax: 416-744-3360"C o m p l e t e A i r C o n t r o l a n d D i s t r i b u t i o n S o l u t i o n s."w w w.n a i l o r.c o m6/20 IOM-EHVAV (Supercedes 4/02)Page 4 of 4Electric Heater Replacement PartsDescriptionRAPP Code Disconnect SwitchesToggle Disconnect Switch 1P , 600V, 25A EC-DISTG251P Toggle Disconnect Switch 3P , 600V, 40A EC-DISTG403P Toggle Disconnect Switch 3P , 600V, 60AEC-DISTG603P Interlocking Disconnect Switch 3P , 600V, 25A EC-DISINT25A Interlocking Disconnect Switch 3P , 600V, 40A EC-DISINT40A Interlocking Disconnect Switch 3P , 600V, 60A EC-DISINT60A Interlocking Disconnect Handle EC-DISINTHDL Interlocking Disconnect ShaftEC-DISINTSFTContactorsContactor MAG 1P , 600V, 50Amp EC-CONM50A1P Contactor MAG 1P , 600V, 40Amp EC-CONM40A1P Contactor MAG 1P , 600V, 30Amp EC-CONM30A1P Contactor MAG 2P , 600V, 50Amp EC-CONM50A2P Contactor MAG 2P , 600V, 40Amp EC-CONM40A2P Contactor MAG 2P , 600V, 30Amp EC-CONM30A2P Contactor MAG 3P , 600V, 50Amp EC-CONM50A3P Contactor MAG 3P , 600V, 40Amp EC-CONM40A3P Contactor MAG 3P , 600V, 30AmpEC-CONM30A3PSCR/SSRSCR Elect. Heat controller, 600V, 1ph, 45A EC-SCR SSR Elect. Heat controller, 600V, 1ph, 45AEC-SSRTransformersTransformer 120V, 24V, 50VAEC-TRANS120A Transformer 208-240V, 24V, 50VA EC-TRANS208A Transformer 277V, 24V, 50VA EC-TRANS277A Transformer 480V, 24V, 50VAEC-TRANS480A Isolation Transformer 24V, 24V, 40VAEC-TRANS2424Transformer 120V/208/240/480 to 24V, 75VA EC-TRANSB Transformer 277V, 24V, 75VAEC-TRANS277BMISCAirflow SwitchEC-AFSW Airflow Switch Probe 4"EC-AFSWPB Airflow Switch Probe 6"EC-AFSWPBL Auto Temp. LMT Swtch EC-AUTOLMTSW Manual Temp. LMT Swtch EC-MANLMTSW Fan Relay 24VEC-FANRELAYDescriptionRAPP CodePower Distribution Blocks2 pole, 175A, 600V, 1 in / 4 out H1-0271A 2 pole, 300V, 1 in / 4 out (quick connect)H1-02933 pole, 600V, 1 in /4 out H1-0270Power Terminal Blocks 1 pole, 600V H1-00442 pole, 600V H1-00763 pole, 600VH1-0004FuseFuse, 250V, 15A EC-FUS250V15Fuse, 250V, 20A EC-FUS250V20Fuse, 250V, 25A EC-FUS250V25Fuse, 250V, 30A EC-FUS250V30Fuse, 250V, 35A EC-FUS250V35Fuse, 250V, 40A EC-FUS250V40Fuse, 250V, 45A EC-FUS250V45Fuse, 250V, 50A EC-FUS250V50Fuse, 250V, 60A EC-FUS250V60Fuse, 600V, 15A EC-FUS600V15Fuse, 600V, 20A EC-FUS600V20Fuse, 600V, 25A EC-FUS600V25Fuse, 600V, 30A EC-FUS600V30Fuse, 600V, 35A EC-FUS600V35Fuse, 600V, 40A EC-FUS600V40Fuse, 600V, 45A EC-FUS600V45Fuse, 600V, 50A EC-FUS600V50Fuse, 600V, 60AEC-FUS600V60。

s FEATURESq UL, CSA, VDE recognizedq 1 form A (SPST-NO) or 1 form C (SPDT) contactqLow cost, miniature relay with big performance in small package—Surge strength: 4,000 V or 6,000 Vq Slim type—meets high density mounting requirement q Wide operating rangeqEasy circuit design with completely separated terminal arrangement (coil and contact terminals)qPlastic sealed type backfilled with nitrogen(a)Series Name VE: VE Series(b)Nominal Voltage Refer to the COIL DATA CHART (c)Contact Rating H : Heavy duty type (d)Contact Arrangement Nil : 1 form C (SPDT)M : 1 form A (SPST-NO)(e)Coil TypeNil : Standard typeS : High sensitivity type(f)Contact Material (Rating)Nil : Gold overlay silver-nickel (N.C.: 3 A, N.O.: 5 A)E : Silver-nickel (N.C.: 3 A, N.O.: 5 A)5: Silver alloy (N.C.: 5 A, N.O.: 5 A)(g)Enclosure K : Plastic sealed type(h)Surge Strength Nil : Standard type (4,000 V)HV: High dielectric strength type (6,000 V)(i)StandardVD: UL, CSA, VDE approved typeNote:Actual marking omits the hyphen (-) of (*)s ORDERING INFORMATIONVE –12H M S E –K –HV –VD [Example](a)(*)(b)(c)(d)(e)(f)(g)(h)(i )s SAFETY STANDARD AND FILE NUMBERSUL508 (File No. E56140)C22.2 No. 14 (File No. LR35579)VDE0435Please note that UL/CSA ratings may differ from the standard ratings.Type Nominal voltage Contact rating VE-H 5 to 48 VDC Normally open:1/14 HP 125 VAC/250 VAC5 A 30 VDC/250 VAC, resistivePilot duty D300Normally close:1/14 HP 125 VAC/250 VAC3 A 30 VDC/250 VAC, resistivePilot duty D150VE-HM 5 to 48 VDC1/12 HP 125 VAC/250 VAC5 A 30 VDC/250 VAC, resistivePilot duty D300VE-H5 5 to 48 VDC Normally open:VE-HM51/10 HP 125 VAC/250 VAC5 A 30 VDC/250 VAC, resistivePilot duty D300Normally close:1/14 HP 125 VAC/250 VAC5 A 30 VDC/250 VAC, resistiveItemVE-( ) HME-K VE-( ) HE-K VE-( ) HM5-KVE-( ) H5-KVE-( ) HM-KVE-( ) H-KContactArrangement 1 form A (SPST-NO) 1 form C (SPDT) 1 form A (SPST-NO) 1 form C (SPDT)Material Gold overlay silver alloy Silver-cadmium oxide alloy StyleSingleResistance (initial) (at 1 A 6 VDC) Maximum 70 m Ω (VE-HM, H) Maximum 200 m ΩMaximum 100 m Ω (VE-HME, HE)Rating (resistive)5 A 250 VAC 5 A 250 VAC (N.O.) 5 A 250 VAC 3 A 250 VAC (N.C.)Maximum Carrying Current 7 AMaximum Switching Power 1,250 VA 1,250 VA (N.O.) 1,250 VA 750 VA (N.C.)Maximum Switching Voltage 250 VAC, 150 VDCMaximum Switching Current 5 A 5 A (N.O.) 5 A 3 A (N.C.)Minimum Switching Load*110 mA, 5 VDC (VE-HM, H), 100 mA 5 VDC (VE-HME, HE, HM5, H5)CoilNominal Power (at 20°C)Standard type: 0.36 W. High sensitivity type: 0.25 W Operate Power (at 20°C)Standard type: 0.177 W. High sensitivity type: 0.13 WOperating TemperatureStandard: –40°C to +85°C. High sensitivity: –40°C to +90°C (no frost)Time Value Operate (at nominal voltage)Maximum 10 ms Release (at nominal voltage)Maximum 5 ms InsulationResistance (at 500 VDC)Minimum 1,000 M Ωbetween open1,000 VAC 1 minute 750 VAC 1 minute 1,000 VAC 1 minute 750 VAC 1 minuteDielectric contactsStrength between coil2,000 VAC 1 minuteand contacts Surge StrengthStandard type: 4,000 V (at 2 × 10 µs)High dielectric strength type: 6,000 V (at 2 × 10 µs)Life Mechanical1 × 107 operations minimumElectrical (at Rating)Standard Type: 1 × 105 ops. min. High sensitivity type: 5 × 104 ops. min.OtherVibration Misoperation 10 to 55 Hz (double amplitude of 3.3 mm)ResistanceEndurance 10 to 55 Hz (double amplitude of 3.3 mm)Shock Misoperation 100 m/s 2 (11 ±1 ms)ResistanceEndurance 500 m/s 2 (6 ±1 ms)WeightApproximately 8 gs SPECIFICATIONS*1 Minimum switching loads mentioned above are reference values. Please perform the confirmation test with the actualload before production since reference values may vary according to switching frequencies, environmental conditions and expected reliability levels.s COIL DATA CHARTMODELNominal Coil Must Must Nominal VE-( ) HM VE-( ) HME VE-( ) HM5voltage resistance operate release power VE-( ) H VE-( ) HE VE-( ) H5(±10%)voltage voltage VE- 5H (M) (E)-KVE- 5H (M) (E) 5-K 5 VDC 69 Ω 3.5 VDC 0.25 VDC 360 mW VE- 6H (M) (E)-K VE- 6H (M) (E) 5-K 6 VDC100Ω 4.2 VDC 0.3 VDC 360 mW VE- 9H (M) (E)-K VE- 9H (M) (E) 5-K 9 VDC 225 Ω 6.3 VDC 0.45 VDC 360 mW VE 12H (M) (E)-K VE-12H (M) (E) 5-K 12 VDC 400 Ω 8.4 VDC 0.6 VDC 360 mW VE-18H (M) (E)-K VE-18H (M) (E) 5-K 18 VDC 900 Ω12.6 VDC 0.9 VDC 360 mW VE-24H (M) (E)-K VE-24H (M) (E) 5-K 24 VDC 1,600 Ω16.8 VDC 1.2 VDC 360 mW VE-48H (M) (E)-K VE-48H (M) (E) 5-K 48 VDC 6,400 Ω33.6 VDC 2.4 VDC 360 mW VE- 5H (M) S (E)-KVE- 5H (M) S5-K 5 VDC 100 Ω 3.6 VDC 0.25 VDC 250 mW VE- 6H (M) S (E)-K VE- 6H (M) S5-K 6 VDC 145 Ω 4.3 VDC 0.3 VDC 250 mW VE- 9H (M) S (E)-K VE- 9H (M) S5-K 9 VDC 325 Ω 6.5 VDC 0.45 VDC 250 mW VE 12H (M) S (E)-K VE-12H (M) S5-K 12 VDC 575 Ω 8.6 VDC 0.6 VDC 250 mW VE-18H (M) S (E)-K VE-18H (M) S5-K 18 VDC 1,300 Ω13.0 VDC 0.9 VDC 250 mW VE-24H (M) S (E)-K VE-24H (M) S5-K 24 VDC 2,310 Ω17.3 VDC 1.2 VDC 250 mW VE-48H (M) S (E)-KVE-48H (M) S5-K48 VDC9,220 Ω34.7 VDC2.4 VDC250 mWH i g h S e n s i t i v e T y p eS t a n d a r d T y p es CHARACTERISTIC DATANote: All values in the table are measured at 20 °C.s REFERENCE DATAs DIMENSIONSVE-M type VE type q Dimensions q Schematics(BOTTOM VIEW)q PC board mountinghole layout(BOTTOM VIEW)Unit: mmJapanFujitsu Takamisawa Component LimitedGlobal Marketing and SalesGotanda-Chuo Building3-5, Higashigotanda 2-chome, Shinagawa-kuTokyo 141, JapanTel: (81-3) 5449-7010Fax: (81-3) 5449-2626North and South AmericaFujitsu Takamisawa America, Inc.250 E. Caribbean DriveSunnyvale, CA 94089 U.S.A.Tel: (1-408) 745-4900Fax: (1-408) 745-4970EuropeFujitsu Takamisawa Europe B.V.Diamantlaan 252132 WV HoofddorpNetherlandsTel: (31-23) 5560910Fax: (31-23) 5560950Asia PacificFujitsu Takamisawa Asia Pacific Pte. Ltd.102E Pasir Panjang Road#04-01 Citilink Warehouse ComplexSingapore 118529Tel: (65) 375-8560Fax: (65) 273-3021Fujitsu TakamisawaInternationalHeadquarterOffices。

Expanding the possibilities of High Voltage HighResistance MeasurementThe new 981i and 983i Teraohmmeters are designed to tackle the toughest High Resistance measurement applications. Demanding applications that most other IR testers won't measure up to. So when it's time to test higher voltage IR values like today's electric vehicle systems and higher voltage solar arrays — look to Vitrek to deliver the IR testeryou need for your production line.98x SeriesT eraohmmeter/IR T esters •***************• 858 689 2755What sets the Vitrek 98x Series IR testers apart from the others?For starters, these units are based on Vitrek's proven DSP technology — so they have the ability to work into capacitive loads where most others do not. And when it comes to output voltage range, Vitrek delivers — with up to 6.5 KVDC for the 981i and up to 11KV with the 983i.Need to measure IR on a Multi-Conductor Cable Harness?The 981i and 983i have the ability to directly control up to four 64 channel HV scanners, right out of the box. That is up to 256 test points and using a PC with Vitrek's Q-Test software you can expand the count up to 1020 test points. The HV Switching System of choice is the Vitrek 964i, which can holdeight 8-channel switching cards — available in 7, 10 and 15KV ratings.Vitrek 981i and 983iIn a never ending race for higher efficiency, electric vehicles and solar panel arrays are now operating with voltage rails up to 2.5KV. This is no place for a 1KV tester, it's time to step up to a Vitrek 98x.Features & Benefits• Highest Range of IR TestVoltage– Choose from 6.5KVDC or 11KVDC maximum output• Fast IR Readings – High speed output control with Dual Coldfire® microprocessors and Dual DSPs to provide dwell times as low as 100ms• High Resistance Measurement Range – Transfer measurements up to 150 Teraohms• Expansive Test Sequence Memory holds up to 100 tests with up to 254 steps per test. Tests can be selected via front panel, Ethernet, RS232 or with optional GPIB • Multi-Dwell Functionality - permits dwells at different voltage levels without having to return to zero between test steps - dramatically simplifying advanced analysis of dielectric properties• Ethernet, RS232, Digital I/O, & Scanner Control - All Standard Interfaces - Provides the highest level of test automation. GPIB available• Pico-Amp Leakage Measurement ensures that even the lowest leakage current levels are accurately detected and 150 Teraohm transfer and 50 Teraohm IR readings are stable and precise• Test Specific Fixture & CableCompensation - Automatically calibrate out offset errors caused by test fixtureThe Vitrek 98x T eraohmmeter/IR T esterChoose the Industry Leader for Reliability.insulation resistance and capacitive and leakage• Multi-Mode IR - Values up to one Teraohm or more can be obtained with precision in your choice of 3 IR test modes - end on time, end on pass or end on fail• Continuously Variable IR Test Voltage - Unlike many IR testers which limit you to 3 or 4 discrete test voltages, the 981i allows you to select the test voltage you need from 30V to 6.5KV with 1 volt resolution. The 983i provides outputs from 60V to 11KV.• Capacitive Loads – The 981i & 983i are specified for use with capacitive loads, most IR testers are not. This means the 981i & 983i are exceptional at performing IR tests on cabling, PV panels and CMC devices.• Measure IR on Grounded Loads – Some DUTs cannot be isolated from earthground, add option HSS2 to make precise IR measurements on grounded loads.• Light Weight Design – Better reliability, easier on your back. Compare the 4.5 kg 981i/983i to whatever you’ve been using.2 of 4 •***************• 858 689 2755Vitrek delivers superior performance in a smaller, lighter footprint.• 3 Year Extended Warranty – 1 year standard, total of 3 years extended warranty with registration and annual factory calibration. Built-in reliability you can count on for years to come • Safety Tested per EN 61010-1. EMC compliant to EN 61326-1• Manual Test Mode – Allows for variable voltage output during testing withcontinuous measurements and pass/fail indication until the user stops the test.General SpecificationsSpecifications: Valid after 15 minute warm-up, for 1 year from last external calibration, and for ambient temperature within +/-2°C of last performed ZERO operation.Ethernet: High speed, high noise immunity LAN interfaceRS232 Interface: Selectable baud: 9600, 19200, 38400, 57600 or 115200, full handshakeVICL Interfaces: Provided for control of HV ScannersDigital I/O Interface: Provides 4 digital inputs and 5 digital outputs. Functions include, Start/Stop, Testing, Pass/Fail, HV Present, Safety Interlock, Dwell TimerOptional GPIB: Option GPIB-9 adds GPIB interface capabilityOperating Temperature: 0°C to 50°C Humidity: <85% RH (non-condensing)Power: 105-265Vrms, 45-65Hz, 500VA Max Dimensions: 89mm H x 432mm W x 457mm D (3.5" H x 17" W x 18" D)Weight: 5Kg (11 lb.) Net / 7Kg (15 lb.) Accessories: Alligator test leads, NISTtraceable calibration certificate with no data, power cord and operator's manual. Limited ISO 17025 cal cert with data & uncertainties available.98x IR Tester/Teraohmmeter DC Output Voltage981i: 30V to 6500VAccuracy: +/- (0.25% rdg + 0.1V)981i with option HSS2: 30V to 5000VAccuracy: +/- (0.25% rdg + 0.1V+1V/mA)983i: 60V to 11000VAccuracy: +/- (0.25% rdg + 0.2V)Output Resolution: 1VLoading: up to 4mA charging, 2mA continuousCurrent Measurement981i & 983i RETURN current only, 1pA to 4mAAccuracy (Resistive Load up to 1000pF): +/- (0.5%rdg + 10pA + 2pA r kV))Accuracy (Capacitive Load 1000pF to 50nF): +/- (0.5%rdg + 100pA + 20pA per kV))Accuracy (Capacitive Load >50nF): +/- (0.5%rdg + 1nA + 200pA per kV))Option HSS2 HV Output current, 1nA to 4mA (for grounded loads)Accuracy (Resistive Load up to 1000pF), C<1000pF): +/- (0.5%rdg + 5nA + 1nA per kV))Accuracy (Capacitive Load 1000pF to 50nF): +/- (0.5%rdg + 7.5nA + 2.5nA per kV))Accuracy (Capacitive Load >50nF): +/- (0.5%rdg + 10nA + 5nA per kV))Resistance MeasurementNOTE: the use of the OFFSET (or ZERO) capability in either AUTO or MANUAL TEST modes is not required to meet these specifications – theOFFSET capability is intended to allow the user to offset externally produced leakages.Minimum resistance: Higher of 50k ohm or (V/4mA)981i Resistive Loading : +/-(0.4%rdg + (R/(1Tohm per kV))%rdg + (10/V)%rdg + 20ohms per kV) for R < 50TohmCapacitive Loading (1000pF to 50nF): +/-(0.5%rdg + (R/(100Gohm per kV))%rdg + (10/V)%rdg +100ohms per kV) for R < 5TohmCapacitive Loading (>50nF): +/-(0.6%rdg + (R/(10Gohm per kV))%rdg + (10/V)%rdg + 1kohms per kV) for R <500Gohm981 + HSS2 (DUT ISOLATED) As 981i plus 1kohm981 + HSS2 (DUT GROUNDED)Resistive Loading : +/-(0.5%rdg + (R/(2Gohm per kV))%rdg + (10/V)%rdg + 20ohms per kV) for R <100GohmCapacitive Loading (1000pF to 50nF): +/-(0.6%rdg + (R/(2Gohm per kV))%rdg + (10/V)%rdg + 100ohms per kV)for R < 100GohmCapacitive Loading (>50nF): +/-(0.75%rdg + (R/(1Gohm per kV))%rdg + (10/V)%rdg + 1kohms per kV) for R <50Gohm983i Resistive Loading : +/-(0.4%rdg + (R/(1Tohm per kV))%rdg + (20/V)%rdg + 40ohms per kV) for R < 50TohmCapacitive Loading (1000pF to 50nF): +/-(0.5%rdg + (R/(100Gohm per kV))%rdg + (20/V)%rdg + 200ohms perkV) for R < 5TohmCapacitive Loading (>50nF): +/-(0.6%rdg + (R/(10Gohm per kV))%rdg + (20/V)%rdg + 2kohms per kV) for R <500Gohm •***************• 858 689 27553 of 44 of 4Vitrek, LLC12169 Kirkham Road, Poway, CA 92064Ph 858.689.2755 Fax 858-689-2760******************Prices and specifications subject to changeOrdering InformationItem Description 981i 6.5KV Teraohmmeter/IR Tester981i+HSS2 6.5KV Teraohmmeter/IR Tester with HSS2 (5KV Max)983i 11KVDC 6KV Teraohmmeter/IR Tester Q-Test Q-Test Automation Software TL-980 Standard Test Lead Set GPIB-9 Optional GPIB Interface RM-1 Rack Mount Kit RSS-95 Remote Start/Stop Switch RFS-95 Remote Start Foot Switch3/19Transfer MeasurementComparative Measurement Capability (measurement of multiple values within 10% at the same test voltage, in the same environmental conditions within +/-1C, within a 1 hour period, with no intervening ZERO operations, and constant power)Uncertainty (Resistive Load): +/- (0.05%rdg + (R/(5Tohm per kV))%rdg + (1/V)%rdg + 2ohms per kV) for R < 150Tohm TimingCharge Time: 1 second minimum charge time, 9999 sec max.Dwell Time:0.1s to 9999 days, 0.1 sec resolution98x IR Tester/Teraohmmeter。

Electric Heaters - Power Slices Operation and Maintenance manualTable of ContentsOperation and Maintenance manual (1)Table of Contents 01Installation options (1)Electric heater in the non-insulated duct (1)Power slices in original AHU casing (1)2Range of the application (1)VVS Standard & AVS (1)VVSc compact floor mounted air handling unit (1)VVSs suspended compact air handling unit (1)NVS ducted air handling unit (1)3SSR control (2)4Technical details (2)Power and current details (2)Electrical supply system details (6)5Electrical connection (6)6Wiring cable types details (7)7Wiring schematics (8)1x18kW High power (10)1x18kW Low power (11)2x18kW High power (12)2x18kW low power (13)4x18kW High power (14)4x18kW Low power (15)6x18kW High power (16)6x18kW Low power (18)8Maintenance Procedure (20)1 Installation optionsFor the following AHU ranges: VVS Standard, AVS (with all subranges) and VVSc floor mounted units, the electric heater made of power slices can be applied in two different ways:Electric heater in the non-insulated ductAs per default, the electric heaters made of power slices will be available as shown on the rights. All power slices will be simply installed in the short duct with the power junction box on the side.Power slices in original AHU casingIf the electric heater needs to be a part of the AHU – in terms of being installed in the body of the unit – an option of full assembly in the original casing will be available.For this option, the heater and its power junction box will be installed inside the “empty section” of the relevant air handling unit.For such installation – the power slices will not be installed in the duct. The power slices will be directly mounted to the internal surface of the AHU empty section.2 Range of the applicationVVS Standard & AVSFor the VVS standard and AVS (with all subranges), the following heating power splits will be available for relevant AHU sizes:VVSc compact floor mounted air handling unitThe VVSc compact floor mounted AHUs have electric heater power options as per below table:VVSs suspended compact air handling unitFor the range of VVSs ceiling suspended unit, we have only 5 AHU sizes with heaters availability as listed below:NVS ducted air handling unitThe NVS air handling units are the last where new power split for the electric heaters has been developed:213040557510012015018023030040050065081216203040556585100130170230300380Max number of slices pcs 2223333333333333Individual slice capacity kW 12181818243030363636363636363636Max total capacity kW 24363654729090108108108108108108108108108VVS Standard size AVS Standard size 2130405575100120150Max number of slices pcs 12222222Individual slice capacity kW 1818243030363636Max total capacity kW 1836486060727272VVSc size 510152030Max number of slices pcs 11222Individual slice capacity kW 1012181818Max total capacity kW 1012363636VVSs size 23396580Max number of slices pcs 1233Individual slice capacity kW 18181824Max total capacity kW 18365472NVS size3SSR controlThe idea of the SSR power regulation is based on cutting heater supplying voltage phases. See below charts, how the voltage supplying the adjustable power slice changes depending on the required heating demand:100% heating demand 70% heating demand 30% heating demand 0% heating demand (heateroff)Each time the adjustable power slide reaches its full capacity, its effort is passed to the following slide which starts to run with its full capacity. Any additional heating capacity will be realized by smooth increase of the adjustable power slide heating power.4Technical detailsPower and current detailsHigh powerType Qty of heaters in oneslice Power of single heater [kW]Power of single slice[kW]Qty ofslicesTotal power[kW]VVS005s 2 5 10 1 10 VVS010s 2 6 12 1 12 VVS015s 3 6 18 2 36 VVS020s 3 6 18 2 36 VVS030s 3 6 18 2 36 VVS021c 3 6 18 2 36 VVS030c 3 6 18 3 54 VVS040c 4 6 24 3 72 VVS055c 5 6 30 3 90 VVS075c 5 6 30 3 90 VVS100c 6 6 36 3 108 VVS120c 6 6 36 3 108 VVS150c 6 6 36 3 108 VVS021 3 6 18 2 36 VVS030 3 6 18 3 54 VVS040 4 6 24 3 72 VVS055 5 6 30 3 90 VVS075 5 6 30 3 90 VVS100 6 6 36 3 108 VVS120 6 6 36 3 108 VVS150 6 6 36 3 108 VVS180 6 6 36 3 108 VVS230 6 6 36 3 108 VVS300 6 6 36 3 108 VVS400 6 6 36 3 108 VVS500 6 6 36 3 108 VVS650 6 6 36 3 108L1/L2/L3 L1/L2/L3 Power Control boxL1/L2/L3 PowerElectrical supply system detailsTN systemrated supply voltage3x400Vinsulation rated voltage400Vrated impulse withstand voltage2.5 kVRated short-time current Icw for individual circuits - effectivevalue of the periodic component withstood for 1 s, i.e. short-circuit currentexpected at switching voltage6 kArated short-circuit current 6 kArated coefficient of diversity 0.8rated freq uency 50 Hz ± 1 Hzdegree of protection IP00permissible operating temperature 0 x 50 ° Ccontrol circuits supply voltage 24 V DC5Electrical connectionConnecting power supply should be carried out with a separate switchgear, not supplied with the VTS package.Connection of the heater should be done in a way to prevent from possibility of switching on the heater when the fan is not switched on. What is more, if the fan stops, the heater's power supply must be turned off as well.NOTICE! The thermostat must be absolutely installed in the heater control system.Thermostat functionality is based on the bimetal element properties, resulting in opening the heater control circuit contacts at air temperature near the thermostat up to 65ºC. After emergency turn off, the heater turns on automatically once the air temperature goes down by 20ºC. After intended or emergency (caused by overheating) turning off the power supply, the supply–air fan has to operate for some time (0.5–5 min), so as the heater's coils reached their normal temperature.Overheating thermostatFunctions and applicationProtection module of the electric heater protecting it against overheatingConstructionMetal casingTwo screw terminalsbimetallic element with a function of a normally closed contactOperation parametersactivation temperature: 65±3o Chysteresis: 17±3o Cparameters of bimetallic element voltage: 30VDC permissible load.Differential pressure controlFunctions and applicationFan’s pile-up controlConstructionMembrane coupled with mechanical module. If the acceptable pressures difference is exceeded, the membrane undergoes deformation and switches offcasing: plasticOperation parametersmeasurement: 20 – 300 Pa:rated operational voltage 30VDCoutput signal: voltage-free (switching contact)number of cycles: <106 cyclesoperation conditions: -30 –+85°Cprotection class: IP44Recommended pressure control operating position: horizontal. In case of vertical alignment, the set point value is 11Pa higher than the real one.6Wiring cable types detailsPower cord for electric heaters (voltage 3 ~ 400VAC)Multi-core, copper conductor - twisted cableOperating voltage U0 / U 450 / 750VWorking temperature -30- + 60CPower cable for the control system (voltage 1 ~ 230VAC)Multi-core, copper conductor - twisted cableWorking voltage U0 / U 300 / 500VWorking temperature -30- + 60CControl cable for the control system (24VDC signals)Multi-core, copper conductor - twisted cableWorking voltage U0 / U 300 / 500VWorking temperature -30- + 60C7 Wiring schematicsHigh power and low power box contains the same elements – only difference is in the connection of the heaters. Electric heater supply wiring should be let through the fixed panel, at the AHU's back. If the wiring is led through the inspection panel, on the front side, then it should be arranged so as to enable opening the section for maintenance and service operations.Dashed lineCONNECTION MADE BY CUSTOMERSolid line CONNECTION MADE BY MANUFACTURERHeater wiring can be divided into two parts:1) Group of cables with connection independent of the type of heater2) Group of cables, the connection of which changes with the type of heater and the components used in the AHUThis division is illustrated in the following two tables:Table - group of cables with connection independent of the heater typeTable - group of cables, the connection of which changes depending on the type of heater and components used in the AHU6x18kW Low power8Maintenance ProcedureElectric heater consists of bare heating coils. During AHU operation, when the heater does not work, dust may settle onto the heating coils. Once the heater is turned on again, strong contamination may cause smell of burning dust or even preliminary fire danger may appear. Check regularly (every year) and especially before starting a heating period, any electric connections, condition of heating elements and their contamination level. Any possible contamination should be removed with a vacuum cleaner with soft suction nozzle or with compressed air. Regularly check the operation of overheating protection in case of lack of air-flow. Air speed should not be lower than 1,5 m/s.。