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United CoolAir VariCool VAV, Инструкция по установке, эксплуатации и обслуживанию

Высококачественный установочный, эксплуатационный и технический мануал для системы VariCool VAV от United CoolAir доступен для загрузки бесплатно на manualshive.com. Этот мануал поможет вам правильно установить, эксплуатировать и обслуживать вашу систему, обеспечивая её долгий срок службы и эффективную работу.

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Installation, Operation and Maintenance Manual

VariCool

®

 VAV

40

Subject to change without notice.

10.20-IM (0818)

NOTES:

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Содержание VariCool VAV

Страница 1: ...VariCool VAV Installation Operation and Maintenance Manual Effective August 2018 Water Cooled and Chilled Water Variable Air Volume...

Страница 2: ......

Страница 3: ...ote Alarm Output Option 16 Remote Water Pump Option 16 O A Damper Control Option 16 Smoke Detector Fire Stat Option 16 Remote On Off Control Option 16 SEQUENCE OF OPERATION 16 MARVEL PLUS CONTROLLER 1...

Страница 4: ...oll to the footer section or Home industry resources enter your serial number in the Serial Search field and press return to retrieve your product wiring diagram Your serial number is a combination of...

Страница 5: ...tice This publication includes warnings cautions and information icons that point out safety related issues or conditions as well as other pertinent information relative to a safe installation service...

Страница 6: ...ose in one or several boxes in the compressor section HANDLING Use extreme caution so that damage does not occur when moving each section to the location of installation The unit may be moved to the l...

Страница 7: ...UNIT DIMENSIONS Figure 2 Unit Dimensions and Table 2 show the dimensions of each unit section Note If the System has the Water Side Economizer Coil option the unit will have a fourth section that will...

Страница 8: ...8 21 TBD TBD 21 5 20 TBD 5 50 AV 10 40 AV 12 18 32 7 18 AV 16 AV 20 80 80 35 35 48 32 20 36 7 5 22 TBD TBD 21 40 TBD 5 66 AV 24 60 AV 26 44 18 AV 30 AV 32 98 100 52 62 36 30 42 11 29 1 5 97 4 80 10 5...

Страница 9: ...unit the weight of each optional component must be added to the standard VariCool unit weight shown in Table 3 MODEL BLOWER lbs EVAPORATOR lbs CONDENSER lbs TOTAL lbs AVW08 588 521 592 1701 AVW10 617...

Страница 10: ...ion isolator into positions shown in Figure 3 and then move the compressor and cooling coil section into the location of installation being careful not to damage the quick connect refrigerant piping 5...

Страница 11: ...connect couplings as loose fittings will restrain full refrigerant flow 13 Move the Blower Section into position of installation making sure the side that the blower can be seen will mate up with the...

Страница 12: ...8 10 AVW40 120 6 AVW44 132 7 AVW48 144 8 AVW52 162 10 AVW56 168 12 AVW60 180 14 Recommended Field Installed Externally Condensate Drain Connection Each VariCool unit has a condensate drain connection...

Страница 13: ...und conduct must be connected from Earth Ground to the factory supplied ground lug internal to the unit SENSOR FIELD MOUNTING WIRING All sensors and optional components that must be field installed an...

Страница 14: ...the drain wire to ground at the VariCool s electrical control panel end only Return Air Temperature Sensor Option The Return Air Temperature Sensor is provided for units with the Morning Warmup optio...

Страница 15: ...supply air duct at least in diameter 16 Using a 7 64 drill bit drill the three fastening screw holes located on the template for the fastening ring 17 Remove the duct sensor s mounting ring from the d...

Страница 16: ...he device and wired back to the VariCool s Control Panel Terminate from the device contact termination points to the factory provided terminals TB2 18 and TB2 19 Remote On Off Control Option With the...

Страница 17: ...dressed Cleaning a water cooled condenser helps to improve the heat transfer rate reduce operational cost restore efficiency prolong heat exchanger life and reduce pressure drop pumping costs Deposits...

Страница 18: ...fore adding grease so as not to introduce dirt into the bearing Slowly rotate the shaft while pumping it in Pump the grease in slowly so as not to blow out the bearing seal When the grease starts to s...

Страница 19: ...rcular dot in the center of the sight glass If the color of this indicator is blue the refrigerant is okay When the indicator is pink or purple an abnormal condition exists servicing is required INFOR...

Страница 20: ...cycles through a cool down period usually 2 3 minutes A compressor off cycle timer is included in the electrical circuit for this purpose The time delay also helps the refrigerant system pressures to...

Страница 21: ...following sequence is based on the unit being controlled by a suitable room thermostat If another control type is being utilized reference the instructions for that device a Lower thermostat set point...

Страница 22: ...recharge refrigerant system Check condenser for obstructions and remove Check for the required water flow through the water regulating valve and the condenser coil Manually reset thermostat With Marv...

Страница 23: ...d compressor bearings Liquid slugging Excessive head pressure Ensure thermal expansion valve bulb is tight on suction line Con firm that bulb is located properly on suction line Check operation and su...

Страница 24: ...d 10 Suction pressure too low Flash gas in liquid line bubbles in sight glass due to a leak Obstructed expansion valve Loss of fluid within expansion valve bulb Clogged filter drier Ice or dirt on eva...

Страница 25: ...e freely Dirt or algae not allowing float to activate pump Locate and repair electrical connection problem Clean pump and float Clean pump and float 15 Condensate Pump runs with no discharge Tubing bl...

Страница 26: ...de of condenser and evaporator 9 Damages resulting from I freezing of condenser water or condensate II use of corrosive water III fouling or restriction of the air water circuit by foreign material or...

Страница 27: ...or like causes 10 Damages resulting from operation with inadequate or interrupted supply of air or water 11 Damages resulting from use of components or accessories not approved by United CoolAir 12 Th...

Страница 28: ...ir 12 This warranty does not apply to the installation plumbing and wiring not integral to the product 13 Damages resulting from improper application or sizing of unit 14 In the event that the refrige...

Страница 29: ...sories not approved by United CoolAir 12 This warranty does not apply to the installation plumbing and wiring not integral to the product 13 Damages resulting from improper application or sizing 14 Di...

Страница 30: ...ooded condenser option the scroll compressors will have crankcase heaters If the outdoor ambient is 70 F or lower let the compressors sit for approximately 24 hours before proceeding 12 Record the vol...

Страница 31: ...ressures on each compressor circuit are within the proper limits i 290 550 Discharge ii 100 140 psig Suction b Compressor Amperage is below the RLA Amps listed on the unit data tag i The maximum compr...

Страница 32: ...act the Distributor Is the Circuit Protection the correct type and does it meet the unit data tag requirements Yes ____________ No ____________ If not correct describe what action s have been taken to...

Страница 33: ..._______ F_________ F_________ F_________ Sub cooling _________ _________ Electrical Evap Motor Amps L1_____________ L2____________ L3_____________ Compressor 1 Amps L1_____________ L2____________ L3__...

Страница 34: ...for approximately 24 hours before proceeding 12 Record the voltage at the unit terminals 13 If possible with the thermostat provided switch the evaporator blower to the RUN or ON position Verify that...

Страница 35: ...ding to the liquid line pressure 32 Calculate and record the liquid sub cooling for each circuit by taking the difference between the liquid line temperature and the saturation temperature correspondi...

Страница 36: ...Is the Circuit Protection the correct type and does it meet the unit data tag requirements Yes ____________ No ____________ If not correct describe what action s have been taken to correct Unit contr...

Страница 37: ...sor 2 Suction Pressure Suction Line Temperature psi________ F_________ psi________ F_________ Saturation Temperature F_________ F_________ Suction Superheat _________ _________ Liquid Line Pressure ps...

Страница 38: ...6 40 44 48 52 56 60 d G Common to all e X Indicate Voltage 3 4 or 5 3 208 230V 3 PH 4 460V 3 PH 5 575V 3 PH f A or D Indicates number of Refrigerant Circuits A Two Refrigerant Circuits D Four Refriger...

Страница 39: ...Installation Operation and Maintenance Manual VariCool VAV 39 Subject to change without notice 10 20 IM 0818 NOTES...

Страница 40: ...Installation Operation and Maintenance Manual VariCool VAV 40 Subject to change without notice 10 20 IM 0818 NOTES...

Страница 41: ...on the compressor labor not included Maintenance items such as filters and belts are excluded under this limited warranty FACTORY TESTED All units are functionally run tested before shipment to ensure...

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