Carrier 40RU Air Conditioner User Manual
Contents
1. FIELD uh jo O21 BLK 11 H H21 BLK l DISCONNECT POWER PER u 126 6 22 YEL 12H K22 YEL 2 wi IFM NEC SUPPLY 35 6 23 BLU 134 H23 BLU xd 3 PHASE ONLY C EE S 3 PHASE ONLY EQUIP GND TERMINAL BLOCK JUMPER FOR 1B HEAT PUMP WIRING a YI ELECTRIC HEAT ACCESSORY Y2 i i WI w2 w2 c H wir rN C I nc WHT X YI wm CONNECT TO 24VAC AT OMIT FOR HEAT PUMP T WIRING Wi We STAT wm CONDENSING UNIT LEGEND FACTORY WIRING E FIELD CONTROL WIRING CB CIRCUIT BREAKER IFC INDOOR FAN CONTACTOR I FM INDOOR FAN MOTOR TB TERMINAL BLOCK T STAT THERMOSTAT NOTE USE COPPER CONDUCTORS ONLY C10695 Fig 18 Unit Wiring Table 6 Fan Contactor Coil Data UNIT VOLTAGE MAXIMUM 40RU vac HOLDING VA 25 28 30 10 Connecting Ductwork Refer to the Carrier System Design Manual for the recommended design and layout of ductwork Fig 19 shows recommended duct connection to units with 2 fans A CAUTION UNIT OPERATION HAZARD Failure to follow this caution could cause equipment damage Do not operate unit without ductwork or discharge plenum unless fan speed has been adjusted for external static pressure of zero in wg Failure to do so may result in motor overload DI2. 25 Condensate Drains 0 2s eee 25 Return Air Filters esses 25 Chilled Water Coil Freeze Protection 26 Coil Removal uud 26 Cleaning Cooling Coil 00 26 Cleaning Insulation 000 26 Replacing Filters 00008 26 START UP CHECKLIST 39 40 SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions package Follow all safety codes Wear safety glasses and work gloves Use quenching cloths for brazing operations and have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and appropriate national electrical codes in USA ANSINFPA70 National Electrical Code NEC in Canada CSA C22 1 for special requirements It is important to recognize safety information This is the safety alert symbol 4 When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Unde
3. C10694 Fig 17 Fan Contactor Box and Terminal Block Cover Removed Typical 19 Table 4 Electrical Data Standard Motors VOLTAGE FAN MOTOR Minimum Circuit Amps 5 0 8 POWER SUPPLY MOCP FLA 5 1 15 9 7 m PH Hzt i UNIT V PH Hz LIMITS i pu 208 230 3 60 187 253 3 73 14 7 13 6 18 4 17 0 30 25 40RUQ 25 460 3 60 414 506 5 0 3 73 68 85 15 208 230 3 60 187 253 7 5 5 59 21 4 19 4 26 9 24 3 45 40 ne 460 3 60 414 506 7 5 5 59 575 3 60 518 632 7 5 5 59 re O 208 230 3 60 187 253 10 0 7 46 28 0 25 2 35 0 31 5 60 50 40RUA30 40RUS30 0 7 46 7 46 See Legend and Notes below Table 5 Electrical Data Alternate Motors E VOLTAGE UNIT V PH Hz dum 40RUA 25 5 5 59 40RUQ 25 460 360 414 506 5 5 59 40RUS 25 5 5 59 40RUA 28 0 7 40RUA 30 40RUS 28 00 40RUS 30 Legend and Notes for Tables 4 and 5 LEGEND FLA Full Load Amps MOCP Maximum Overcurrent Protection t Motors are designed for satisfactory operation within 1096 of normal voltage shown Voltages should not exceed the limits shown in the Voltage Limits column NOTES 1 Minimum circuit amps MCA and MOCP values are calcu lated in accordance with The NEC Article 440 2 Motor FLA values are established in accordance with Under writers Laboratories UL Standard 1995 3 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance
4. 40RU Packaged Air Handling Units 60 Hz With Puron R 410A Refrigerant Sizes 25 28 30 turn to the experts fH Installation Start Up and Service Instructions TABLE OF CONTENTS SAFETY CONSIDERATIONS 0 1 PRE INSTALLATION 000 0000 ee eee 2 Moving and Storage 2 0 eee eee eee 2 Rigging 22 1 4 Dx Lk d khoa ER EUR 2 INSTALLATION eese 2 22 Gener le aan 2 Unerating sans seine hei 2 Accessories fini fF ye bie a end 2 Unit Positioning 0 0 e eee eee 11 Unit Isolation 2222202 eee eee eee ee 13 Refrigerant and Chilled Water Piping Access 13 Refrigerant Piping 2 2222 ee een 13 Chilled Water Piping 00 17 Condensate Drain 0 e eee ee eee 18 Fan Motors and Drives 000 18 Power Supply and Wiring sse 19 Connecting Ductwork leeseeseese 21 Return Air Filters 21 START AUP uito tp peior deed e E REER 23 SERVICE 22d ebbe eC aree d 23 36 Panels 2 5 2 340 RR ERA RR MP ERRORES 23 Fan Motor Lubrication 000 24 Fan Shaft Bearings 000 24 Centering Fan Wheel 00 24 Fan Shaft Position Adjustment 24 Individual Fan Wheel Adjustment 25 Fan Belts un 2a 25 Fan Rotation u une na 25 Fan Pulley Alignment 0 0 25 Pulley and Drive Adjustment
5. Fan Shaft Position Adjustment Loosen setscrew or locking collar of each fan shaft bearing Slide shaft into correct position and replace locking collar Fig 24 To replace locking collar push collar up against inner face of bearing Turn collar in direction of fan rotation until tight and tighten setscrew Tightening locking collar in direction of fan rotation results in further tightening of collar should setscrew work itself loose LOCKING COLLAR BEARING C10699 Fig 24 Fan Shaft Bearing SLOT C10700 Fig 25 Fan Motor Mounting 24 Individual Fan Wheel Adjustment Loosen the 2 locking bolts holding fan wheel hub to shaft See Fig 23 Position fan wheel in center of the fan housing and tighten locking bolts Clearance between wheel and housing should be the same on both sides Fan Belts Motor mounting plate and motor support angles are slotted to permit both vertical and horizontal adjustment Adjust belt s for correct deflection by loosening motor plate mounting bolts moving motor plate assembly forward or back and re tightening bolts Press down on belt with one finger midway between fan and motor pulleys to check deflection The correct deflection is g in 3 2 mm See Fig 25 If complete belt replacement is required during servicing loosen the motor plate mounting bolts Fig 25 move motor plate assembly towards fan pulley and pull belt s off pulleys Reverse the procedure with
6. 4 CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing 40RU units A CAUTION UNIT OPERATION HAZARD Failure to follow this caution could cause equipment damage Ensure voltage listed on unit data plate agrees with electrical supply provided for the unit PRE INSTALLATION 1 The power supply v ph and Hz must correspond to that specified on unit rating plate 2 The electrical supply provided by the utility must be sufficient to handle load imposed by this unit 3 Refer to Installation General section page 2 and Fig 1 and Fig 2 for locations of electrical inlets con densate drain duct connections and required clear ances before setting unit in place 4 This installation must conform with local building codes and with the NEC National Electrical Code or ANSI American National Standards Institute NFPA National Fire Protection Association latest revision Refer to provincial and local plumbing or wastewater codes and other applicable local codes Moving and Storage To transfer unit from truck to storage site use a fork truck Do not stack units more than 2 high during storage If unit is to be stored for more than 2 weeks before installation choose a level dry storage site free from vibration Do not remove pla
7. Hot Water Coil In MPT Hot Water Coil Out MPT Condensate PVC FILTERS Quantity Size mm Access Location STEAM COIL Max Working Pressure kPag at 126 C Total Face Area sq m Rows Fins m HOT WATER COIL Max Working Pressure kPag Total Face Area sq m Rows Fins m Water Volume L m3 LEGEND DX Direct Expansion TXV Thermostatic Expansion Valve 25 70 326 44 2 381 3775 2831 4719 3 73 3 73 29 1 29 1 R 410A 1 59 1 59 Enhanced Copper Tubes Aluminum Sine Wave Fins 4482 1 85 2 2 Face 50 50 591 2 178 2 5 g 1 21 5 1 11 5 1 2 1 2 1 11 4 ODM 1 IDF Throwaway Factory Supplied 4 406 x 610 x 51 4 406 x 508 x 51 Right or Left Side 138 1 24 1 394 1034 1 24 2 335 52 6 0 052 t Units are shipped without refrigerant charge Field installed accessory only Table 1E 40RUS Physical Data English Chilled Water Units UNIT 40RUS NOMINAL CAPACITY Tons OPERATING WEIGHT Ib Base Unit Plenum FANS Qty Diam in Nominal Airflow cfm Airflow Range cfm Nominal Motor Hp Standard Motor 208 230 3 60 and 460 3 60 575 3 60 Motor Speed rpm 208 230 3 60 and 460 3 60 575 3 60 CHILLED WATER COIL Max Working Pressure psig Face Area sq ft Upper Face Area sq ft Lower Rows Fins in PIPING CONNECTIONS Quantity Size in Chilled Water In Chilled Water Out Steam Coil In
8. 29 1 29 1 29 3 29 3 R 410A 2 04 2 27 Enhanced Copper Tubes Aluminum Sine Wave Fins 1 85 2 18 4 591 2 11 g 4481 2 30 2 77 2 2 20 24 Face 50 50 4 591 4 591 2 13 g 2 13 g 2 5 g 1 21 2 1 1 2 1 2 1 2 1 11 4 ODM 1 IDF Throwaway Factory Supplied 4 406 x 508 x 51 4 406 x 610 x 51 1 24 1 394 1 24 2 335 52 6 0 052 t Units are shipped without refrigerant charge Field installed accessory only 4 508 x 610 x 51 4 508 x 635 x 51 Either Side 138 1 39 1 39 1 394 1 394 1034 1 39 1 39 2 335 2 335 54 1 0 054 Table 1C 40RUQ Physical Data English Heat Pump Units UNIT 40RUQ NOMINAL CAPACITY Tons OPERATING WEIGHT Ib Base Unit with TXV Plenum FANS Qty Diam in Nominal Airflow cfm Airflow Range cfm Nominal Motor Hp Standard Motor 208 230 3 60 and 460 3 60 575 3 60 Motor Speed rpm 208 230 3 60 and 460 3 60 575 3 60 REFRIGERANT Operating charge Ib approx per circuit DIRECT EXPANSION COIL Max Working Pressure psig Face Area sq ft No of Splits No of Circuits per Split Split Type Percentage Rows Fins in PIPING CONNECTIONS Quantity Size in DX Coil Suction ODF DX Coil Liquid Refrigerant ODF Steam Coil In MPT Steam Coil Out MPT Hot Water Coil In MPT Hot Water Coil Out MPT Condensate PVC FILTERS Quantity Size in Access Location STEAM
9. 8 5 2 12 5 2 12 5 Water Volume gal 13 9 14 3 ft3 1 90 LEGEND DX Direct Expansion TXV Thermostatic Expansion Valve t Units are shipped without refrigerant charge Field installed accessory only Table 1B 40RUA Physical Data SI Cooling Units UNIT 40RUA NOMINAL CAPACITY kW OPERATING WEIGHT kg Base Unit with TXV Plenum FANS Qty Diam mm Nominal Airflow L s Airflow Range L s Nominal Motor kW Standard Motor 208 230 3 60 and 460 3 60 575 3 60 Motor Speed r s 208 230 3 60 and 460 3 60 575 3 60 REFRIGERANT Operating charge kg approx per circuit DIRECT EXPANSION COIL Max Working Pressure kPag Face Area sq m No of Splits No of Circuits per Split Split Type Percentage Rows Fins m PIPING CONNECTIONS Quantity Size in DX Coil Suction ODF DX Coil Liquid Refrigerant ODF Steam Coil In MPT Steam Coil Out MPT Hot Water Coil In MPT Hot Water Coil Out MPT Condensate PVC FILTERS Quantity Size mm Access Location STEAM COIL Max Working Pressure kPag at 126 C Total Face Area sq m Rows Fins m HOT WATER COIL Max Working Pressure kPag Total Face Area sq m Rows Fins m Water Volume L m3 LEGEND DX Direct Expansion TXV Thermostatic Expansion Valve 3775 2831 4719 3 73 3 73 29 1 29 1 1 59 30 105 482 148 2 457 4119 5663 3539 5899 4247 7079 5 60 7 46 5 60 7 46
10. Disconnect coil connections and remove fastening screws Remove coil through end or side sections of unit Cleaning Cooling Coil Remove return air filters Remove any heavy dirt that may have accumulated on underside of coil Coil can be cleaned more easily with a stiff brush vacuum cleaner or compressed air when coil is dry If coil is wet or if water is to be used for cleaning guard against splashing water on electrical components or damaging surrounding area Clean coil baffles as applicable and check for tight fit to be sure air does not bypass coil Cleaning Insulation The insulation contains an immobilized antimicrobial agent that helps prevent the growth of bacteria and fungi Clean the inner surface of the insulation according to the separate maintenance instructions shipped with the unit Replacing Filters Filters can be removed and installed from either side of the unit Install new filters in units that have one fan as follows 1 Remove the side access panel retain screws 2 Remove the filter retainer clip see Fig 28 3 Remove old filters by lifting and tilting them out of the filter track See Fig 16 and 29 Use the factory supplied filter hook to slide filters within reach for re moval The filter hook is shipped inside the unit in the filter track 4 Reverse the procedure to install new filters 26 A CAUTION UNIT OPERATION HAZARD Failure to follow this caution could cause equipment dama
11. Puron R 410ARefrigerant Type of Coil A StandardDXCoil Q Heat Pump S Chilled Water Coil Refrigerant Options A None Nominal Tonnage 25 20 Tons 28 25 Tons 30 30 Tons Not Used A Place Holder Indoor Fan Options 1 Fan Drive and Motor Low Motor Efficiency Standard 2 Fan Drive and Motor Med Motor Efficiency Standard 3 Fan Drive and Motor High Motor Efficiency Standard Brand Packaging 0 Standard Not Used A Place Holder Service Options 0 Non Painted Cabinet 1 Painted Cabinet Not Used A Place Holder Not Used 0 Place Holder Design Rev Catalog Model Number 1 Design Revision original Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Coil Options A Al Cu C 0724 Fig 3 Model Number Nomenclature POSITION NUMBER 1 2 3 4 5 6 7 8 9 10 TYPICAL 2 6 1 0 G 1 2 3 4 5 POSITION DESIGNATES 1 2 Week of manufacture fiscal calendar 3 4 Year of manufacture 10 2010 5 Manufacturing location G ETP Texas USA 6 10 Sequential number C 0725 Fig 4 Serial Number Nomenclature horizontal arrangement with return air entering TXV COIL mi p ma EZA ED VAS REMOVE FOAM BLOCK LEGEND TXV Thermostatic Expansion Valve C10683 Fig 5 Foam Block Location Unit Positioning The unit can be mount
12. T ACCESS FOR CONTROLS MOTOR AND BELT 17 5 1 4 438 2 o c 1 Jp 3 11 16 93 71 3 1 8 6 10 3 4 179 41 12101 9 1 4 1 16 1401 31 1 6 3 8 11 6 3 8 15180 Re cda Taro 1461 4 461 4 4 DUCT FLANG 17 3 378 red SEE NOTE 5 Leod 1390 5 DUCT FLANGE 1 2 TYP SEE NOTE 5 nme I TYP 2 PLACES ALTERNATE p gt ENTRANCE I E ES ar FOR POWER WIRING fal o Jr ALTERNATE DRAIN LOCATION ALTERNATE ENTRANCE n TANE j FOR COIL KO 1 CONNECTIONS i be j O E EEE a cs s MN o 17 6 1 2 9 1469 9 dol M 5 P M l i L 6 3 4 COENA TE DRAN 171 51 3 178 6 10 3 4 0 31 179 41 2101 8 j 5 IS 2 4 3 16 1716 3 12260 61 LEFT SIDE FRONT ACCESS FOR CONTROLS LEGEND MOTOR AND BELT TXV Thermostatic Expansion Valve t 1 0 TYP 25 4 NOTES J i 1 Dimensions in are in millimeters N aa 2 gb Direction of airflow en 3 Recommended clearance A i Rear 3 in 914 mm 2 ft 6 in 762 mm 1 1 8 DIA FOR LIQUID CONNECTION with electric heat accessory 128 6 Front 2 ft 6 in 762 mm 1 3 4 DIA FOR SUCTION CONNECTION 47 8 1 16 Right Side 2 ft 6 in 762 mm Hh UM Left Side 2 ft 6 in 762 mm l TO 10 118 DIA FOR TXV BULB CONNECTION 638 21 Local codes or jurisdiction may prevail 1
13. UNIT 40RUA 25 40RUQ 25 40RUS 25 40RUA 28 40RUS 28 40RUA 30 40RUS 30 AIRFLOW Table 10A 40RU Standard Fan Performance Data 0 0 2 4 in wg External Static Pressure English EXTERNAL STATIC PRESSURE in wg Cfm 569 639 711 781 846 641 702 763 824 885 770 823 876 930 841 888 982 914 957 1042 See Legend and Notes on page 36 UNIT 40RUA 25 40RUQ 25 40RUS 25 40RUA 28 40RUS 28 40RUA 30 40RUS 30 Table 10A 40RU Standard Fan Performance Data 0 0 2 4 in wg External Static Pressure English cont EXTERNAL STATIC PRESSURE in wg Cfm Rom Bnp Rem Bnp Rem Bhp 954 5 22 1142 5 67 990 6 30 1176 6 84 00 o o o os 1w Rem Bhp Rom Bhp Rem Bhp Rpm Bhp Rem Bhp Rpm Bhp Rpm 532 905 943 983 1030 1084 1 2 Bhp 3 60 4 23 5 24 6 51 8 08 3 60 4 45 5 68 7 14 8 86 12 73 4 70 6 05 7 87 10 07 12 73 1028 7 60 1073 1126 See Legend and Notes on page 36 32 Table 10B 40RU Standard Fan Performance Data 0 600 kPa External Static Pressure SI EXTERNAL STATIC PRESSURE kPa AIRFLOW UNIT L s 0 o o w m 9 ue um fe lw ue uw um m ue um me ww ive m 2 53 3 15 40RUA 25 40RUQ 25 3 91 40RUS 25 4 85 6 03 2 68 3 32 40RUA 28 4 23 40RUS 28 5 33 6 61 3 50 4 51 40RUA 30 40RUS 30 5 87 7 51 9 49 See Legend and Notes on page
14. 36 Table 10B 40RU Standard Fan Performance Data 0 600 kPa External Static Pressure SI cont EXTERNAL STATIC PRESSURE kPa AIRFLOW UNIT L s 3 89 19 03 4 70 19 60 40RUA 25 40RUQ 25 5 67 40RUS 25 40RUA 28 40RUS 28 40RUA 30 40RUS 30 See Legend and Notes on page 36 33 Table 10C 40RU High Capacity Fan Performance Data 0 0 2 4 in wg External Static Pressure English EXTERNAL STATIC PRESSURE in wg UNIT Aun n5 qp 98 UL 54 SS Be a Cfm Due ss we we we we ses me ses e nes ev os Bhp 3 40 4 27 40RUA 25 40RUQ 25 5 32 40RUS 25 6 62 8 24 3 96 4 76 40RUA 28 40RUS 28 6 05 7 64 9 52 4 82 6 41 40RUA 30 40RUS 30 2p 10 71 13 54 See Legend and Notes on page 36 Table 10C 40RU High Capacity Fan Performance Data 0 0 2 4 in wg External Static Pressure English cont EXTERNAL STATIC PRESSURE in wg AIRFLOW UNIT Cfm 5 24 1147 6 38 1184 40RUA 25 40RUQ 25 7 67 40RUS 25 40RUA 28 40RUS 28 40RUA 30 40RUS 30 See Legend and Notes on page 36 34 Table 10D 40RU High Capacity Fan Performance Data 0 600 kPa External Static Pressure SI EXTERNAL STATIC PRESSURE kPa unt AMM s w 1o 2 o L s re um e xw ve xw vs ww ve ww ve ww ve vw 2 54 3 18 40RUA 25 40RUQ 25 3 96 40RUS 25 4 94 6 14 2 95 3 55
15. 40RUA 28 4 51 40RUS 28 570 7 10 3 59 4 78 40RUA 30 2 40RUS 30 6 23 7 98 10 10 See Legend and Notes on page 36 Table 10D 40RU High Capacity Fan Performance Data 0 600 kPa External Static Pressure SI cont EXTERNAL STATIC PRESSURE kPa ow ARROW ao o 3 91 19 12 4 75 19 73 40RUA 25 40RUQ 25 5 72 40RUS 25 40RUA 28 40RUS 28 40RUA 30 40RUS 30 See Legend and Notes on page 36 35 Legend and Notes for Tables 10A and 10C LEGEND FACTORY SUPPLIED PRESSURE DROP ENGLISH Bhp Brake Horsepower Input to Fan ESP External Static Pressure AIRFLOW PRESSURE DROP NOTES fe UNIT Cfm in wg 1 Maximum allowable fan speed for size 25 units is 1200 rpm Maximum allowable fan speed for size 28 and 30 units is 1100 rpm 0 12 2 Fan performance is based on deductions for wet coil clean 2 in filters 40RUA 25 and unit casing See table at right for factory supplied filter pressure drop 40RUQ 25 0 19 3 Refer to fan motor and drive tables for additional data 40RUS 25 0 26 7 500 0 15 40RUA 28 AORUS 28 10 000 0 22 12 500 0 30 9 000 0 19 40RUA 30 40RUS 30 12 000 0 29 15 000 0 40 Legend and Notes for Tables 10B and 10D LEGEND FACTORY SUPPLIED PRESSURE DROP SI ESP External Static Pressure NOTES UNIT AIRFLOW PRESSURE DROP 1 Maximum allowable fan speed for size 25 units is 20 r s Maximum L s Pa allowable fan speed for size 28 and 30 units
16. 5mm NOTE Access hole knockouts 1 4 are factory supplied Fig 8 Refrigerant and Chilled Water Piping Access Holes 13 SIT A 9 EQUALIZER LINE w 3 2 eo UPPER SENSING YT es p SPLIT BULB E AV SOLENOID 0 aA PRS VALVE sicht AIRFLOW 45DIAMS ji TV I Y Gass MIN Q DIAMS J gt SN x EQUALIZER S 5 LINE FILTER LOWER e DRIER SPLIT o i AIRFLOW m ER d 8DAMS 7 CU MN INDOOR COIL AD LEGEND TXV Thermostatic Expansion Valve NOTE Component location arrangemetshown for field installation of sight glasses solenoid valves filter driers and TXV sensing bulbs The TXVs and equilizer lines are factory installed C10726 Fig 9 Face Split Coil Suction and Liquid Line Piping Typical VAPOR LINE LIQUID LINE CONNECTION 45 STRAP SUCTION VAPOR CONNECTION CONDENSATE DRAIN TXV BULB CONNECTION LEGEND FIRST ON LAST OFF B TXV Thermostatic Expansion Valve VERTICAL INSTALLATION NOTE The 8 o clock position is shown above C10689 Fig 11 TXV Sensing Bulb Location CONDENSATE DRAIN CONNECTION FIRST ON LAST OFF A HORIZONTAL INSTALLATION C10688 Fig 10 Typical Evaporator Coil Connections 40RU 14 Table 2 Factory Installed Nozzle and Distributor Data COIL TYPE UNIT STD TXV Qty Part No DISTRIBUTOR Qty Part No FEEDER TUBES PER DISTRIBUTORT Qty Size in NOZZLE t Feeder tube size is 1 4 in 6 35 mm
17. 9 43 6 67 9 43 t Four belts shipped with unit Use correct set of 2 belts sized according to the pulley setting 29 Table 9C High Static Drive Data 60 Hz English 40RUA 25 40RUA 28 40RUA 30 UNIT 40RUQ 25 40RUS 28 40RUS 30 40RUS 25 MOTOR DRIVE Motor Pulley Pitch Diameter in 4 3 5 3 er 30 FAN DRIVE Pulley Pitch Dia in 7a se 8 6 Pulley Bore in 115 6 Belt No Section 2 B Belt Pitch in 378 37 8 FAN SPEEDS rpm Factory Setting 1024 Range 873 1075 Max Allowable Speed rpm 1100 Change per 1 2 Turn of Moveable Motor Pulley 19 4 16 7 16 7 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE in 8 16 10 02 6 67 9 43 6 67 9 43 T It is possible to adjust drive so that fan speed exceeds maximum allowable DO NOT exceed 1200 rpm Table 9D Standard Drive Data 60 Hz SI 40RUA 25 UNIT 40RUQ 25 40RUS 25 40RUA 28 40RUA 30 40RUS 28 40RUS 30 MOTOR DRIVE Motor Pulley Pitch Diameter mm 109 2 134 6 i oor 30 FAN DRIVE Pulley Pitch Dia mm 279 Pulley Bore mm 49 2 Belt No Section 2 Bt Belt Pitch mm o Mos FAN SPEEDS r s Factory Setting 12 5 Max Allowable Speed r s 18 3 Change per 1 2 Turn of Moveable Motor Pulley 0 255 0 218 0 218 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE mm 232 279 169 240 169 240 t Four belts shipped with unit Use correct set of 2 belts sized according to
18. COIL Max Working Pressure psig at 260 F Total Face Area sq ft Rows Fins in HOT WATER COIL Max Working Pressure psig Total Face Area sq ft Rows Fins in Water Volume gal ft LEGEND DX Direct Expansion TXV Thermostatic Expansion Valve 25 20 720 140 2 15 8000 6000 10000 5 0 5 0 1745 1745 R 410A 3 5 3 5 Enhanced Copper Tubes Aluminum Sine Wave Fins 650 19 9 2 2 Face 50 50 4 15 2 11 g 2 5 g 1 21 5 1 115 1 2 1 2 1 11 4 ODM 1 IDF Throwaway Factory Supplied 4 16 x 20x 2 4 16 x 24x 2 Right or Left Side 20 13 33 1 10 150 13 33 2 8 5 13 9 1 85 Units are shipped without refrigerant charge Field installed accessory only Table 1D 40RUA Physical Data SI Heat Pump Units UNIT 40RUQ NOMINAL CAPACITY kW OPERATING WEIGHT kg Base Unit with TXV Plenum FANS Qty Diam mm Nominal Airflow L s Airflow Range L s Nominal Motor kW Standard Motor 208 230 3 60 and 460 3 60 575 3 60 Motor Speed r s 208 230 3 60 and 460 3 60 575 3 60 REFRIGERANT Operating charge kg approx per circuit DIRECT EXPANSION COIL Max Working Pressure kPag Face Area sq m No of Splits No of Circuits per Split Split Type Percentage Fins m PIPING CONNECTIONS Quantity Size in DX Coil Suction ODF DX Coil Liquid Refrigerant ODF Steam Coil In MPT Steam Coil Out MPT
19. MPT Steam Coil Out MPT Hot Water Coil In MPT Hot Water Coil Out MPT Condensate PVC FILTERS Quantity Size in Access Location STEAM COIL Max Working Pressure psig at 260 F Total Face Area sq ft Rows Fins in HOT WATER COIL Max Working Pressure psig Total Face Area sq ft Rows Fins in Water Volume gal ft LEGEND t Field installed accessory only s a v 20 683 1035 1042 225 325 325 2 15 2 18 2 18 8000 10000 12000 6000 10000 7500 12500 9000 15000 5 0 7 5 10 0 5 0 7 5 10 0 1745 1745 1745 1745 1755 1755 Enhanced Copper Tubes Aluminum Sine Wave Fins 435 11 0 12 4 15 5 8 3 12 4 12 4 3 15 2 13 3 ODM 2 21 3 ODM 2 21 ODM 2 21 ODM 2 21 ODM 2 21 ODM 1 21 2 1 11 2 1 2 1 2 1 11 4 ODM 1 IDF Throwaway Factory Supplied 4 16 x 20x 2 4 20 x 24x2 4 16 x 24x 2 4 20x25x2 Either Side 20 13 33 15 0 15 0 1 10 1 10 1 10 150 13 33 15 0 15 0 2 8 5 2 12 5 2 12 5 13 9 14 3 1 1 1 90 Table 1F 40RUS Physical Data SI Chilled Water Units UNIT 40RUS NOMINAL CAPACITY kW OPERATING WEIGHT kg Base Unit Plenum FANS Qty Diam mm Nominal Airflow L s Airflow Range L s Nominal Motor kW Standard Motor 208 230 3 60 and 460 3 60 575 3 60 Motor Speed r s 208 230 3 60 and 460 3 60 575 3 60 CHILLED WATER COIL Max Working Pressure kPag Face Area sq m Upper Face Area sq
20. Most unit service can be performed by removing one or both of the unit s side panels Coil cleaning or removal or insulation cleaning may require removal of a rear top or bottom panel depending on the unit s orientation When service is completed replace unit panels Panels Panels are fastened to unit frame with sheet metal screws Fan and coil compartment must be sealed tightly after service to prevent air from bypassing the cooling coil 23 Fan Motor Lubrication Fan motor supplied with unit is permanently lubricated and requires no further lubrication Fan Shaft Bearings Size 25 30 units have pillow block bearings Fig 23 that must be lubricated with suitable bearing grease approximately every 3 months See Table 7 for suitable lubricants Table 7 Lubricant Data MANUFACTURER LUBRICANT Mobil Mobilplex EP No 2 Sunoco Prestige 42 Texaco Multifak 2 Texaco Regal AFB 2 Preferred lubricant contains rust and oxidation inhibitors FAN WHEEL HUB BEARING GREASE FITTING LOCKING COLLAR C10698 Fig 23 Fan Shaft Bearings and Fan Wheel Typical FAN PULLEY S BELTS MOTOR PULLEY S Centering Fan Wheel If fan and fan shaft assembly are not properly centered blades may scrape against the blower side scroll plate or may create an objectionable whistling noise It may be necessary to adjust individual fan wheels or move entire fan shaft See the following two sections
21. Shaft Dia mm 34 9 575 3 60 Speed r s 29 17 Frame NEMA D215T Shaft Dia mm 34 9 LEGEND NEMA National Electrical Manufacturers Association 28 Table 9A Standard Drive Data 60 Hz English 40RUA 25 40RUA 28 40RUA 30 UNIT 40RUQ 25 40RUS 28 40RUS 30 40RUS 25 MOTOR DRIVE Motor Pulley Pitch Diameter in 4 3 5 3 Ful urs Open 30 FAN DRIVE Pulley Pitch Dia in 11 0 Pulley Bore in 115 146 2 42 8 2 42 8 Belt Pitch in 41 8 2 43 8 2 43 8 FAN SPEEDS rpm Range 679 863 682 841 674 831 Max Allowable Speed rpm 1200 1100 1100 Change per 1 2 Turn of Moveable Motor Pulley 15 3 13 1 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE in 9 12 10 99 6 67 9 43 6 67 9 43 t Four belts shipped with unit Use correct set of 2 belts sized according to the pulley setting Table 9B Medium Static Drive Data 60 Hz English 40RUA 25 40RUA 28 40RUA 30 UNIT 40RUQ 25 40RUS 28 40RUS 30 40RUS 25 MOTOR DRIVE Motor Pulley Pitch Diameter in 4 3 5 3 rur ee so FAN DRIVE Pulley Pitch Dia in 9 4 Pulley Bore in 115 46 Belt No Section 2 Bt Belt Pitch in 41 8 2 a e FAN SPEEDS rpm Range 798 984 798 984 798 984 Max Allowable Speed rpm 1200 1100 1100 Change per 1 2 Turn of Moveable Motor Pulley 15 3 15 3 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE in 9 16 10 99 6 67
22. TXV RR Lu A CIRCULATION DAR 15 DIAMSMIN i0DIAMS EQUALIZER LINE 15x DIA MIN 10xDIA MIN I SONDUITE D QUILIBRAGE 8 DIAMS MIN P d La SxDIA MIN INDOOR COIL wg ab ECHANGEUR INTERIEUR The sensor bulb capillary tubes must be routed from the TXVs inside the unit through one of the piping access holes Clamp the TXV sensor bulb on a vertical portion of the suction line outside the unit See Fig 7 in the installation start up and service instruction Super heat must be adjusted in field Les tubes capillaires du capteur doivent tre achemin partir du d tendeur thermostatique situ l int rieur de l appareil au travers de l un des trous d acc s de conduites Attacher le capteur sur une portion verticale de la conduite de succion l ext rieur de l appareil Voir la Figure 7 dans le manuel d installation de mise en marche et d entretien La surchauffe doit tre ajust e sur place C10827 Fig 21 Label TXV Bulb Location Adjusting TXV for Superheat 40RUA and 40 RUQ only The unit mounted thermostatic expansion valve s is are factory set to provided superheat at the bulb location in 10 F to 15 F 5 5 C to 8 3 C range Actual system load conditions may require adjustment of the factory setting To adjust the TXV superheat setting 1 Remove the seal cap from the bottom of the TXV body 2 To increase superheat turn the stem clockwise To de crease the superheat t
23. g Nipple 11 L 13 g Long Radius Elbow 5 g Street Elbow Lower 5 Nipple 11 2 L 5 g Long Radius Elbow 5 g Street Elbow Upper 5 g Nipple 191 2 L 5 g Long Radius Elbow 13 g Nipple 43 46 L 13 g Long Radius Elbow 13 g Nipple 231 4 L 13 g Long Radius Elbow 2 g Long Radius Elbow Lower 21 g Nipple 31 5 L 2 g Long Radius Elbow 2 g Long Radius Elbow Lower 21 g Nipple 3 L 2 g Long Radius Elbow 2 g Long Radius Elbow Upper 21 g Nipple 67 g L 21 3 Long Radius Elbow 21 3 Long Radius Elbow Upper 21 g Nipple 117 8 L 21 3 Long Radius Elbow 13 g Street Elbow Lower 13 g Nipple 3 L 13 g Long Radius Elbow 5 g Street Elbow Lower 5 Nipple 79 4 L 5 g Long Radius Elbow 5 g Street Elbow Upper 5 g Nipple 181 2 L 5 g Long Radius Elbow 13 g Nipple 43 46 L 13 g Long Radius Elbow 13 g Nipple 191 4 L 13 g Long Radius Elbow UNIT CIRCUIT Suction Liquid 40RUA 28 Liquid Suction Upper Supply Return 40RUS 28 30 Return Supply Suction Liquid 40RUA 30 Liquid Suction Upper See Fig 8 for access hole location by number t Fittings are listed in order from header or tee stub connection out to access hole in corner support post 16 Chilled Water Piping See Tables 1E and 1F for chilled water connection sizes For ease in brazing it it recommended that all internal solder joints be made before unit is placed in final position Knockouts are provided in the unit corner
24. m Lower Rows Fins m PIPING CONNECTIONS Quantity Size in Chilled Water In Chilled Water Out Steam Coil In MPT Steam Coil Out MPT Hot Water Coil In MPT Hot Water Coil Out MPT Condensate PVC FILTERS Quantity Size mm Access Location STEAM COIL Max Working Pressure kPag at 125 C Total Face Area sq m Rows Fins m HOT WATER COIL Max Working Pressure kPag Total Face Area sq m Rows Fins m Water Volume L m3 LEGEND Field installed accessory only 3s J a J v 310 469 473 102 148 148 2 381 2 457 2 457 3775 4719 5663 2831 4719 3539 5899 4247 7079 3 73 5 60 7 46 3 73 5 60 7 46 29 1 29 1 29 1 29 1 29 3 29 3 Enhanced Copper Tubes Aluminum Sine Wave Fins 2999 1 02 1 15 1 44 0 77 1 15 1 15 3 591 3 591 3 591 2 13 g ODM 2 2 3 ODM 2 2 g ODM 2 13 g ODM 2 2 3 ODM 2 2 g ODM 1 21 2 1 11 2 1 2 1 2 1 11 4 ODM 1 IDF Throwaway Factory Supplied 4 406 x 508 x 51 4 508 x 610 x 51 4 406 x 610 x 51 4 508 x 635 x 51 Either Side 138 1 24 1 39 1 39 1 394 1 394 1 394 1034 1 24 1 39 1 39 2 335 2 493 2 493 52 6 54 1 0 052 0 054 TOP ALTERNATE RETURN AIR INTAKE
25. 22 2 4 Liquid piping not supplied by Carrier Quasi PIE 5 Duct flange is factory supplied and field 783 1 installed 17 9 3 16 537 7 B 1 7 1 16 RETURN AIR bae 1484 1 11 1 16 1 4 1 16 280 9 1401 91 UNIT UNIT WEIGHT o i 1 t Ib kg ma 40RUA 25 730 331 uue 28 61 40RUQ 25 720 326 Run Pos DIA FOR SUCTION CONNECTION 40RUS 25 683 310 1 1 8 DIA FOR LIQUID CONNECTION 44 5 RIGHT SIDE Fig 1 Dimensions Size 25 C10722 TOP ALTERNATE RETURN AIR INTAKE CONTROL BOX ACCESS FOR CONTROLS MOTOR amp BELT 3 7 16 87 3 3 1 8 7 8 3 47 79 4 2355 9 1 9 9 167 17 9 9 167 1 5 8 14 M24 547 81 1 yya 547 51 41 3 419 1 479 6 DUCT FLANGE SEE NOTE 5 DUCT FLANGE SEE NOTE 5 172 TYP TYP 2 PLACES 12 7 t 1 ALTERNATE 1l ENTRANCI l IEEE TE FE FOR POWER ALTERNATE WIRING FILTER ALTERNATE E a ACCESS MOTOR ZBELT A 8 ALTERNATE 4 DRAIN LOCATION l l C RETURN AIR i INTAKE ALTERNATE p 1 B e ENTRANCE l S FOR COIL CONNECTIONS RETURN d AIR pel 2 11 16 Jo 627 11 ue E Ls d UFER DRAIN oid 1497 99 3 1 8 8 3 47 79 4 2355 9 u 2 8 5 8 _ E 8 3
26. 7 3 8 THREADED ROD RETURN AIR FIELD SUPPLIED TYP 4 PLACES LI BRACKET FACTORY SUPPLIED FIELD INSTALLED TYP 4 PLACES STEEL CHANNEL FIELD SUPPLIED TYP 2 PLACES 1 1 1 m a oQ 000 Br p Ph E OVERHEAD SUSPENSION ACCESSORY WITH HOT WATER COIL OVERHEAD SUSPENSION ACCESSORY UNIT SIZES 28 30 1 L p L E DISCHARGE AIR E I n L d 8 9 1 27 REE t 2679 71 3 8 THREADED ROD FIELD SUPPLIED TYP 4 PLACES BRACKET FACTORY SUPPLIED FIELD INSTALLED TYP 4 PLACES U STEEL CHANNEL FIELD SUPPLIED TYP 2 PLACES 1 1 n 3 oo sid o0 000 tal gt s aU aj NOTE Dimensions in are millimeters GVERTEADNSOSSENE TQ HAC essen WITH HOT WATER COIL C10728 Fig 7 Preferred Suspension Technique 12 Unit Isolation Where extremely quiet operation is essential install isolators between floor and base of unit or between ceiling and top section of unit Be sure that unit is level and adequately supported Use channels at front and sides of unit for reference points when leveling Refrigerant and Chilled Water Piping A
27. 828 7 2514 63 LEFT SIDE FRONT ACCESS FOR CONTROLS MOTOR amp BELT 1 CONTROL BOX LEGEND i TXV Thermostatic Expansion Valve m i ioo TYP p 25 41 NOTES 1 Dimensions in are in millimeters 7 8 DIA POWER ENTRY 22 4 2 gt Direction of airflow E UM dd 3 Recommended clearance rm 5 5 9 16 Rear 3 in 914 mm 2 ft 6 in 762 mm rT 1 1665 21 with electric heat accessory iba Gl DIA FOR LIQUID CONNECTION e Front 2 ft 6 in 762 mm AN Du ange 4 3 1 16 BERN REA re TH ya3447 DIA FOR SUCTION CONNECTION Bear Right Side 2 ft 6 in 762 mm 3 4 9 16 7 8 DIA FOR TXV BULB CONNECTION Left Side 2 ft 6 in 762 mm 1030 2 22 2 Local codes or jurisdiction may prevail b 4 Liquid piping not supplied by Carrier 5 Duct flange is factory supplied and field RETURN AIR 1 28 3718 installed m ee peo en 1716 Js 532 7 6 40RUS may require alternate or additional 280 9 357 11 407 9 i field favricated poping access holes Y a Io Y t Y t Li iver ALTERNATE 28 6 RETURN AIR 1 3 4 DIA FOR SUCTION CONNECTION UNIT UNIT WEIGHT 44 51 Ib kg 1 1 8 DIA FOR LIQUID CONNECTION Ebb 40RUA 28 1050 477 RIGHT SIDE 40RUA 30 1062 482 40RUS 28 1035 469 40RUS 30 1042 473 Fig 2 Dimensions Sizes 28 and 30 10 C10723 10 11 12 13 14 15 16 17 18 AI6 0o A 0o AO Model Type 40RU Carrier Fan Coil
28. D THE FOLLOWING MEASUREMENTS COMP A1 COMP B1 OIL PRESSURE SUCTION PRESSURE SUCTION LINE TEMP DISCHARGE PRESSURE DISCHARGE LINE TEMP ENTERING OUTDOOR UNIT AIR TEMP LEAVING OUTDOOR UNIT AIR TEMP INDOOR UNIT ENTERING AIR DB TEMP INDOOR UNIT ENTERING AIR WB TEMP INDOOR UNIT LEAVING AIR DB TEMP INDOOR UNIT LEAVING AIR WB TEMP OUTDOOR UNIT ENTERING WATER TEMP 40RUS ONLY OUTDOOR UNIT LEAVING WATER TEMP 40RUS ONLY INDOOR UNIT ENTERING WATER TEMP 40RUS ONLY INTDOOR UNIT LEAVING WATER TEMP 40RUS ONLY COMPRESSOR AMPS L1 L2 L3 CHECK THE COMPRESSOR OIL LEVEL SIGHT GLASSES ARE THE SIGHT GLASSES SHOWING OIL LEVEL AT g to 3 FULL Y N NOTES Copyright 2011 Carrier Corp e 7310 W Morris St e Indianapolis IN 46231 Printed in U S A Edition Date 01 11 Catalog No 40RU 07SI Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Replaces 40RU 05SI 40
29. EATERS BEEN ENERGIZED FOR 24 HOURS Y N INDOOR UNIT HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE Y N ARE PROPER AIR FILTERS IN PLACE Y N HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT Y N DO THE FAN BELTS HAVE PROPER TENSION Y N PIPING 40RUA 40RUQ HAS FOAM SHIPPING BLOCK BEEN REMOVED FROM THE TXV Thermostatic Expansion Valve Y N ARE LIQUID LINE SOLENOID VALVES LOCATED AT THE INDOOR UNIT 40RUA OR OUTDOOR UINT 40RUQ COILS AS REQUIRED Y N HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS CONDENSERS INDOOR COILS TXVs Thermostatic Expansion Valves SOLENOID VALVES FILTER DRIERS AND FUSIBLE PLUGS WITH A LEAK DETECTOR Y N LOCATE REPAIR AND REPORT ANY LEAKS HAVE ALL COMPRESSOR SERVICE VALVES BEEN FULLY OPENED BACKSEATED Y N ARE THE COMPRESSOR OIL SIGHT GLASSES SHOWING CORRECT LEVELS Y N 40RUS HAS AIR BEEN BLED FROM SYSTEM Y N HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS CHILLERS VALVES amp INDOOR COILS Y N LOCATE REPAIR AND REPORT ANY LEAKS 39 CHECK VOLTAGE IMBALANCE LINE TO LINE VOLTS AB V AC V BC V AB AC BC 3 AVERAGE VOLTAGE V MAXIMUM DEVIATION FROM AVERAGE VOLTAGE V VOLTAGE IMBALANCE 100 X MAX DEVIATION AVERAGE VOLTAGE IF OVER 2 VOLTAGE IMBALANCE DO NOT ATTEMPT TO START SYSTEM CALL LOCAL POWER COMPANY FOR ASSISTANCE III START UP CHECK INDOOR FAN MOTOR SPEED AND RECORD AFTER AT LEAST 10 MINUTES RUNNING TIME RECOR
30. NOTE Hot gas bypass applications require field supplied auxiliary side connector ACCESS CONNECTION UNIT HOLE NO TYPE CIRCUIT 40RUA 25 3 Liquid Upper t Fittings are listed in order from header or tee stub connection out to access hole in corner support post 40RUQ 25 40RUS 25 See Fig 8 for access hole location by number Table 3 Fitting Requirements Lower Lower Upper Upper Lower Lower Upper Upper FITTINGS REQUIRED in 11 g Street Elbow 11 g Nipple 79 g L 11 g Long Radius Elbow 5 g Street Eloow 5 g Nipple 61 2 L 5 g Long Radius Elbow 5 g Street Eloow 5 g Nipple 91 5 L 5 g Long Radius Elbow 11 g Nipple 5 g L 11 g Long Radius Elbow 11 g Nipple 11 L 11 g Long Radius Elbow 11 g Nipple 3L 11 g Long Radius Elbow 5 g Nipple 27 g L 5 g 45 Elbow 5 g Nipple 15 g L 5 g Long Radius Elbow 5 g Nipple 27 g L 5 g 45 Elbow 5 g Nipple 41 4 L 5 g Long Radius Elbow 11 g Nipple 5 L 11 8 45 Elbow 11 g Nipple 83 L 11 g Long Radius Elbow 13 g Long Radius Elbow 13 g Nipple 33 4 L 13 g Long Radius Elbow 13 g Long Radius Elbow 13 g Nipple 33 g L 13 g Long Radius Elbow 13 g Long Radius Elbow 13 g Nipple 7 L 13 g Long Radius Elbow 19 g Long Radius Elbow 13 g Nipple 113 4 L 11 g Long Radius Elbow Qty Part No Table 3 Fitting Requirement cont ACCESS HOLE NO F CONNECTION TYPE FITTINGS REQUIRED in 13 g Street Elbow Lower 13
31. SCHARGE CONNECTIONS Duct flanges are factory supplied they are shipped inside the unit attached to the hairpin end of the coil tube sheet for field installation Using the existing screws install the duct flanges on the unit s fan deck Each fan discharge requires 2 flanges each flange must be bent in the middle to conform to the discharge opening See Fig 20 After flanges are installed connect them to the supply duct using a canvas connection to prevent vibration It is important that this connection be properly fabricated to prevent high air friction losses and air noise RETURN CONNECTIONS When using return air ductwork route return air duct to the unit s return air inlet near the filter rack using a canvas connection to prevent transmission of unit vibration If the duct blocks off the unit s access panel provide a slip joint in the ductwork to permit removal for servicing OUTDOOR AIR INLET CONNECTIONS Connect outdoor air inlet to field installed accessory economizer Refer to Economizer Installation Instructions Return Air Filters Type and size of filters are shown in Tables 1A 1F and are factory supplied and factory installed In all units with 2 fans a filter replacement tool hook is shipped inside the unit for field use when replacing filters See the Service section for instructions on filter element replacement 21 C10696 Fig 19 Typical Fan Discharge Connections for Multiple Fan U
32. TE PIPE TRAP TO SEWER NOTE Dimensions in are in millimeters C10691 Fig 13 Condensate Drains NOTE A trap must be installed in the condensate drain line to ensure that the static pressure of fans is balanced with the water column in the drain line and that condensate can drain completely from pan Without a trap air can be drawn up drain line until water level in condensate pan becomes equal to static pressure created by fans preventing complete drainage Conditions will worsen as filters become dirty Install clean out plugs in trap Pitch drain line downward to an open floor drain or sump Provide service clearance around drain line to permit removal of unit panels Observe all local sanitary codes N PVC STUB UNIT DRAIN CONNECTION ADJUSTMENT SLOTS BOTH ENDS OF UNIT C10692 Fig 14 Drain Pan Slope Adjustment As shipped the unit s condensate drain pan is NOT sloped towards the drain connection The pan slope must be changed to pitch towards the side of the unit with the drain connection See Fig 14 Loosen the 2 screws next to the drain outlet at both ends of the unit push drain pan down in the slots near the drain connection and up in the slots on the opposite end Re tighten screws The pan should have a pitch of at least l 1 in over its length toward the drain connection Fan Motors and Drives Motor and drive packages are factory installed in all units The motor and drive
33. c information 2 Table 1A 40RUA Physical Data English Cooling Units UNIT A0RUA s 29 3 NOMINAL CAPACITY Tons 30 OPERATING WEIGHT Ib Base Unit with TXV 730 1050 1062 Plenum 225 325 325 FANS Qty Diam in 2 15 2 18 2 18 Nominal Airflow cfm 8000 10000 12000 Airflow Range cfm 6000 10000 7500 12500 9000 15000 Nominal Motor Hp Standard Motor 208 230 3 60 and 460 3 60 5 0 7 5 10 0 575 3 60 5 0 7 5 10 0 Motor Speed rpm 208 230 3 60 and 460 3 60 1745 1745 1745 575 3 60 1745 1755 1755 REFRIGERANT R 410A eat 5 45 6 0 DIRECT EXPANSION COIL Enhanced Copper Tubes Aluminum Sine Wave Fins Max Working Pressure psig 650 Face Area sq ft 19 88 24 86 29 83 No of Splits 2 2 2 No of Circuits per Split 18 20 24 Split Type Percentage Face 50 50 Rows Fins in 4 15 4 15 4 15 PIPING CONNECTIONS Quantity Size in DX Coil Suction ODF 2 11 g 2 13 g 2 13 g DX Coil Liquid Refrigerant ODF 2 5 g Steam Coil In MPT 1 21 2 Steam Coil Out MPT 1 1 2 Hot Water Coil In MPT 1 2 Hot Water Coil Out MPT 1 2 Condensate PVC 1 11 4 ODM 1 IDF FILTERS Throwaway Factory Supplied Quantity iz oS oF Access Location Either Side STEAM COIL Max Working Pressure psig at 260 F 20 Total Face Area sq ft 13 33 15 0 15 0 Rows Fins in 1 10 1 10 1 10 HOT WATER COIL Max Working Pressure psig 150 Total Face Area sq ft 13 33 15 0 15 0 Rows Fins in 2
34. ccess The 40RU Series units come with standard knockouts for refrigerant and chilled water piping These knockouts are located on both sides of the unit for installation flexibility The standard knockouts provide sufficient access to the unit s coils for all 40RUA 25 28 and 30 units 40RUQ 25 units as well as 40RUS 25 28 and 30 units require additional holes which must be field fabricated to accommodate the piping See Fig 8 for the positions and dimensions of the additional access holes required for 40RUQ and 40RUS units Recommended access hole use is also listed for all units Note that Fig 8 shows the access holes on the control box side of the unit this is the side of the unit with the coil headers so it is used most often for piping access IMPORTANT Do not bury underground refrigerant piping Refrigerant Piping See Tables 1A 1F for refrigerant pipe connection sizes For ease in brazing it is recommended that all internal solder joints be made before unit is placed in final position The 40RU direct expansion units have internal factory installed thermostatic expansion valves TXVs distributors and nozzles for use with R 410A See Table 2 for part numbers Knockouts are provided in the unit corner posts for 40RU refrigerant piping See Fig 8 which also lists recommended knockouts and access holes to use for each 40RU unit size Recommended fittings are listed in Table 3 The sensor bulb capillary tubes must b
35. e routed from the TXVs inside the unit through one of the piping access holes Clamp the TXV sensor bulb on a vertical portion of the suction line outside the unit See Fig 9 NOTE Be sure to remove the styrofoam shipping pad from the TXV Verify that it has been removed See Fig 5 IMPORTANT Never attach the sensor to the suction manifold Do NOT mount the sensor on a trapped portion of the suction line The 40RU Series evaporator coils have a face split design Ensure that lower circuit of coil is first on last off when connected to the condensing unit and or system controls See Fig 10 External TXV equalizer connections are provided and factory brazed into the coil suction manifolds If suction line must be horizontal clamp bulb to suction line at least 45 degrees above bottom at approximately the 4 o clock or 8 o clock position See Fig 11 7 i E rt n 4 a y 4 1 3 4A 2 1 C10727 FIELD FABRICATED HOLE DIAMATERS FIELD FABRICATED HOLE POSITION DIMENSIONS USE HOLE in mm in mm NUMBERS Cs ee ee ee 40RUS 25 40RUQ 25 40RUA25 28 30 12 54 esa Er e 4507 mass ness mes sora sores osen 3 5 6 7 1 a 286 1 amp 28 6 13 445 325 826 6 125 155 6 10 38 263 7 40RUS 28 30 21 3 63 5 21 2 63 5 21 2 63 5 21 2 63 5 6 0 152 5 9 625 244 5 13 38 339 9 17 0 431 8 t Must be enlarged from 11 g in 28 6mm to 13 4 in 44
36. ect switch and fan coil unit Use only copper wire See Fig 15 ELECTRIC DISCONNECT SWITCH COPPER WIRE ONLY Fig 15 Disconnect Switch and Unit A93033 Install disconnect switch and power wiring in accordance with all applicable local codes See Fig 15 17 and the unit label diagram Connect power wiring with 4 in ring terminal FAN SCROLL FAN CONTACTOR BOX MOTOR AND DRIVE WIRE ACCESS FAN DRIVE BEN PENSATE PULLEY CONNECTION HORIZONTAL COIL FILTER TXV BULB ELEMENTS ACCESS REFRIGERANT EIGER PIPING ACCESS RETAINER CLIP CONDENSATE DRAIN CONNNECTION VERTICAL LEGEND TXV Thermostatic Expansion Valve C10693 Fig 16 Wiring and Service Access Side Panel Removed Fan motors are factory installed on all units Indoor fan contactors are located in the fan contactor box behind the side access panel see Fig 16 and 17 Wire the thermostat to the 24 v control circuit terminal block located in the side of the fan contactor control box according to Fig 18 or the unit label diagram If the air handler is part of a split system complete the wiring from the condensing unit to the thermostat shown in Fig 18 e o 9 e Y 177 niin g my LR g9 9 Ovals 3 ae Se FAN UE a ei do CONTACTOR llo ML On DR N i 24V n gue 4 N q BLOCK POWER WIRING OL g KNOCKOUT el en Wi
37. ed on the floor for vertical application with return air entering the face of the unit and supply air discharging vertically through the top of the unit The unit can also be applied in a horizontally and the supply air discharging horizontally When applying the unit in a horizontal arrangement ensure the condensate drain pan is located at the bottom center of the unit for adequate condensate disposal See Fig 6 for condensate connections for each unit position 5 23 i hy r PLUG lt 4 i al a a a oN L PLUG CONDENSATE 42 D Lee DRAIN 4 LEGEND Accessory Line gt Alternate Air Intake and Discharge O gt Air Intake and Discharge Note Maintain recommended clearances per Fig 1 and Fig 2 C10684 Fig 6 Typical Unit Positioning 11 Typical positioning and alternate return air locations are preferred suspension technique The unit needs support shown in Fig 6 Alternate return air locations can be used underneath to prevent sagging m E ie ant DATEN He on rn IMPORTANT Do NOT attempt to install unit with return location to the standard return air location Refer to air entering top panel of unit Condensate will not drain from overhead suspension accessory drawing Fig 7 for unit OVERHEAD SUSPENSION ACCESSORY UNIT SIZE 25 LI m oOooQ xd Ma F e 7 11 1 27 REF 2425
38. educe speed Before tightening setscrew make certain that setscrew is over nearest flat surface of pulley hub Fig 27 A CAUTION UNIT OPERATION HAZARD Failure to follow this caution could cause equipment damage Increasing fan speed produces a greater load on motor Do not exceed rated capacity of motor Condensate Drains Keep condensate drains free of dirt and foreign matter Return Air Filters Refer to Replacing Filters section for filter accessibility and removal Replace with clean filters of the sizes listed in Tables 1A 1F 25 Chilled Water Coil Freeze Protection Shut off water supply to unit Remove side panel of unit and remove vent and drain plugs in top and bottom of coil header Drain coil and blow out remaining water Reinstall plugs and side panel Alternative freeze protection methods follow Circulate hot water within the water coil s supply main or supplementary space heating Close off supply lines to unit and open a union or field supplied drain valve in the return line IMPORTANT Draining from return line will not completely drain water from coils After draining as much water as possible from coils add sufficient antifreeze to prevent residual water in the coil from freezing Add a sufficient quantity of non corrosive antifreeze to the entire system to prevent all water within the system from freezing Coil Removal Remove unit panels and corner posts as required
39. ge Do not operate unit without air filters FILTER RETAINER CLIP C10703 Fig 28 Remove Filter Retainer Clip C10704 Fig 29 Filter Removal Replacement Table 8A Fan Motor Data Standard Motor English 40RUA 25 UNIT 40RUQ 25 40RUS 25 40RUA 28 40RUA 30 40RUS 28 40RUS 30 208 230 3 60 and 460 3 60 Speed rpm 1745 Hp 10 0 Frame NEMA S215T Shaft Dia in 13 g 575 3 60 Speed rpm 1755 Hp 10 0 Frame NEMA D215T Shaft Dia in 13 g LEGEND NEMA National Electrical Manufacturers Association Table 8B Fan Motor Data Alternate Motor English 40RUA 25 UNIT 40RUQ 25 40RUS 25 40RUA 28 40RUA 30 40RUS 28 40RUS 30 208 230 3 60 and 460 3 60 TEES Frame NEMA S215T Shaft Dia in 13 g 575 3 60 TE u Frame NEMA D215T Shaft Dia in 13 g LEGEND NEMA National Electrical Manufacturers Association 27 Table 8C Fan Motor Data Standard Motor SI 40RUA 25 UNIT 40RUQ 25 40RUS 25 40RUA 28 40RUA 30 40RUS 28 40RUS 30 208 230 3 60 and 460 3 60 Speed r s 29 08 Frame NEMA S215T Shaft Dia mm 34 9 575 3 60 Speed r s 29 25 Shaft kW 7 46 Frame NEMA S215T Shaft Dia mm 34 9 LEGEND NEMA National Electrical Manufacturers Association Table 8D Fan Motor Data Alternate Motor SI 40RUA 25 UNIT 40RUQ 25 40RUS 25 40RUA 28 40RUA 30 40RUS 28 40RUS 30 208 230 3 60 and 460 3 60 Speed r s 29 17 Frame NEMA S215T
40. in supply voltage is greater than 296 Use the formula in the example see column to the right to determine the percentage of volt age imbalance 4 Installation with Accessory Electric Heaters Size the Field Power Wiring between the heater TB1 and the 40RU indoor fan motor per NEC Article 430 28 1 or 2 depends on length of conduit between heater enclosure and 40RU power entry location Install wires in field installed conduit FAN MOTOR Minimum 9 7 7 8 sw sro some 7565 75 om 25 20 See Legend and Notes below POWER SUPPLY m 3 9s 5 208 230 3 60 187 253 21 4 19 4 26 9 24 3 45 40 7 Example Supply voltage is 230 3 60 max voltage deviation from average voltage Voltage Imbalance 100x average voltage A B C AB 393v E BC 403 v AC 396 v 393 403 396 1192 Average Voltage 3 3 397 Determine maximum deviation from average voltage AB 397 393 4v BC 403 397 6v AC 397 396 1v Maximum deviation is 4 v Determine percent of voltage imbalance 6 Voltage Imbalance 397 100 x 1 596 This amount of phase imbalance is satisfactory as it is below the maximum allowable 296 IMPORTANT If the supply voltage phase imbalance is more than 296 contact your local electric utility company immediately 20 C 5 H P AND ABOVE RCUIT BREAKER
41. is 18 3 r s 2 Fan performance is based on deductions for wet coil clean 51 mm 40RUA 25 2900 32 filters and unit casing See table at right for factory supplied filter 40RUQ 25 3800 47 pressure drop 40RUS 25 3 Refer to fan motor and drive tables for additional data 4700 64 3500 36 40RUA 28 40RUS 28 HOO gt 5900 76 4250 47 40RUA 30 71 A0RUS 30 3959 7050 98 36 37 Copyright 2011 Carrier Corp e 7310 W Morris St e Indianapolis IN 46231 Printed in U S A Edition Date 01 11 Catalog No 40RU 07SI Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Replaces 40RU 05SI 38 START UP CHECKLIST SPLIT SYSTEMS WITH 40RU UNITS I PRELIMINARY INFORMATION II OUTDOOR MODEL NO INDOOR MODEL NO SERIAL NO SERIAL NO ADDITIONAL ACCESSORIES PRE START UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE Y N IF SO WHERE WILL THIS DAMAGE PREVENT UNIT START UP Y N CHECK POWER SUPPLY DOES IT AGREE WITH UNIT Y N HAS THE GROUND WIRE BEEN CONNECTED Y N HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY Y N ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY Y N HAVE COMPRESSOR HOLDDOWN BOLTS BEEN LOOSENED Y N CONTROLS ARE THERMOSTAT S amp INDOOR FAN CONTROL WIRING CONNECTIONS MADE amp CHECKED Y N ARE ALL WIRING TERMINALS including main power supply TIGHT Y N HAVE OUTDOOR UNIT CRANKCASE H
42. new bolts and readjust deflection Fan Rotation Correct fan rotation with respect to fan outlet is shown in Fig 26 FAN HOUSING AIR DISCHARGE N CUTOFF PLATE FAN WHEEL C10701 Fig 26 Fan Rotation To reverse the direction of rotation of a 3 phase fan motor reverse any 2 of the power leads Refer to the connection diagram on the inside of motor terminal box cover for proper reversing procedure of single phase motor Fan Pulley Alignment Align as follows 1 Loosen setscrews on pulleys 2 Align pulleys visually and tighten setscrews on fan pulley to lock it in place 3 Use the methods shown in Fig 27 to check proper pulley alignment ADJUSTABLE FLANGES STRAIGHT EDGE MUST BE PARALLEL WITH BELT SETSCREWS PULLEYS FIXED FLANGES SINGLE GROOVE TWO GROOVES MOTOR AND FAN SHAFTS MUST BE PARALLEL C10702 Fig 27 Fan Pulley Adjustments 4 If pulleys are not in correct alignment loosen the mo tor holddown bolts and slide the motor axially until the pulleys are aligned 5 Tighten motor holddown bolts Pulley and Drive Adjustment To obtain desired fan speed refer to the fan motor and drive data in Tables 8A 11D and adjust fan motor pulley as follows 1 Remove belt from fan motor pulley after loosening motor from motor base 2 Loosen setscrew in moveable flange of pulley Screw moveable flange toward fixed flange to increase the fan speed and away from fixed flange to r
43. nits DUCT FLANGES C10697 Fig 20 Duct Flange Installation 22 START UP Before starting unit check the following and correct as necessary Is unit solidly supported s fan adjusted for speed and pulley alignment Are pulleys motor and bearings securely mounted Are there any loose parts that will rattle or vibrate s condensate drain pan pitched for correct drainage Are coil baffle plates tight against coil to prevent air bypass Are all panels securely fastened Are all electrical connections correct and tight 40RUA and 40RUQ ONLY Is TXV bulb located on suction tube per Fig 21 Is the capillary tube to the bulb free of kinks and not subject to pinching s the bulb well secured to the suction tube with strap Also refer to condensing unit or outdoor heat pump section instructions before starting a split system A split system start up checklist is provided at the end of these instructions IMPORTANT IMPORTANT EQUALIZER LINE TV CONDUITE D QUILIBRAGE UPPER SPLIT m SIGHT GLASS BLOC SUPERIEUR BULB CAPTEUR TXV AIR FLOW aa CIRCULATION DAIR 15DIAMSMIN 10DIAMS gt gt 15x DIA MIN 10xDIA MIN PX SOLENOID VALVE 8 DIAMS MIN Bx DA MIN VARNE SOLENOIDE LOWER lt 7 ca FILTER SPLIT DRIER TXV SENSING BLOC INFERIEUR BULB FILTRE DESSICCATEUR CAPTEUR
44. packages consist of the following items 1 fan motor 1 adjustable motor pulley 1 fan pulley 2 matched fan belts 40RUA 25 30 40RUQ 25 40RUS 25 30 units For instructions on changing fan rotation changing drive speeds and adjusting drives see Pulley and Drive Adjustment in the Service section 18 Power Supply and Wiring Check the unit data plate to ensure that available power supply matches electrical characteristics of the unit Provide a disconnect switch with an integrated lock out feature of size required to provide adequate fan motor starting current See Tables 4 6 for unit electrical data A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Do not use gas piping as an electrical ground Unit cabinet must have an uninterrupted unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur This ground may consist of electrical wire connected to unit ground lug in control compartment or conduit approved for electrical ground when installed in accordance with NEC National Electrical Code ANSI NFPA 70 latest edition in Canada Canadian Electrical Code CSA Canadian Standards Association C22 1 and local electrical codes A WARNING FIRE HAZARD Failure to follow this warning could result in intermittent operation or performance satisfaction Do not connect aluminum wire between disconn
45. posts for 40RUS refrigerant piping Additional field fabricated access holes are required for 40RUS chilled water piping See Fig 8 which lists recommended knockouts and access holes to use for each 40RUS unit size GAGE COCKS SUBBASE CONDENSATE TRAP To size design and install chilled water piping consult the Carrier System Design manual See Fig 12 for an example of a typical installation Recommended fittings are listed in Table 3 To access 40RUS coil vents and drains remove the unit side panel over the coil header Vent and drain plugs are on the top and bottom of header respectively See the Service section for information on preventing coil freeze up during winter DISCONNECT RETURN d sie f CONTROL VALVE M a Z x s a L DIRT PUMP x LEG caps rop SU SN SUPPLY LINE BLOWOUT QD C10690 Fig 12 Typical 40RUS Chilled Water Piping 17 Condensate Drain Install a trapped condensate drain line to unit connection as shown in Fig 13 The unit drain connection is a PVC stub See Fig 14 Some areas may require an adapter to connect to either galvanized steel or copper pipe For these applications install a field supplied threaded PVC adapter FROM PLUG CONDENSATE PLUG PAN 3 MIN re Y PLUG PLUG EXISTING FLOOR DRAIN SINK OR HOPPER UNIT CONDENSATE CONN 3 MIN 76 1 MIN ps Y TRAP Am NOT LESS THAN 18 457 LONG AND TWO SIZES LARGER THAN WAS
46. rstand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause in personal injury or death Before performing service or maintenance operations on unit always turn off main power switch to unit and install lockout tag Unit may have more than one power switch A WARNING UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could cause in personal injury death and or equipment damage Puron R 410A refrigerant systems operate at higher pressures than standard R 22 systems Do not use R 22 service equipment or components on Puron refrigerant equipment A WARNING PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to follow this warning could cause in personal injury or death Relieve pressure and recover all refrigerant before system repair or final unit disposal Wear safety glasses and gloves when handling refrigerants Keep torches and other ignition sources away from refrigerants and oils
47. stic wrap or skid from unit until final installation Rigging All 40RU Series units can be rigged by using the shipping skid Units are shipped fully assembled Do not remove shipping skids or protective covering until unit is ready for final placement damage to bottom panels can result Use slings and spreader bars as applicable to lift unit INSTALLATION General Allow the following clearances for service access and airflow Rear 3 ft 914 mm 21 5 ft 762 mm with electric heat accessory e Front 21 5 ft 762 mm e Right Side 31 ft 1067 mm Left Side 21 2 ft 762 mm For units equipped with an economizer refer to the accessory installation instructions for additional clearance requirements Be sure floor wall or ceiling can support unit weight Tables 1A IF See Fig 1 and Fig 2 for dimensions Uncrating Move unit as near as possible to final location before removing shipping skid Remove metal banding top skid and plastic wrap Examine unit for shipping damage If shipping damage is evident file claim with transportation agency Remove base skid just prior to actual installation Check nameplate information against available power supply and model number description in Fig 3 NOTE Be sure to remove the styrofoam shipping pad from the thermostatic expansion valve TXV Verify that it has been removed See Fig 5 Accessories Refer to instructions shipped with each accessory for specifi
48. the pulley setting 30 Table 9E Medium Static Drive Data 60 Hz SI 40RUA 25 40RUA 28 40RUA 30 UNIT 40RUQ 25 A0RUS 28 40RUS 30 40RUS 25 MOTOR DRIVE Motor Pulley Pitch Diameter mm 109 2 134 6 109 2 134 6 109 2 134 6 ier nias 30 FAN DRIVE Pulley Pitch Dia mm 239 Pulley Bore mm 49 2 Belt No Section 2 Bt R 2 986 2 986 Belt Pitch mm 1062 2 1011 2 1011 FAN SPEEDS r s Range 13 3 16 4 13 3 16 4 13 3 16 4 Max Allowable Speed r s 18 3 Change per 1 2 Turn of Moveable Motor Pulley 0 255 0 255 0 255 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE mm 232 279 169 240 169 240 t Four belts shipped with unit Use correct set of 2 belts sized according to the pulley setting Table 9F High Static Drive Data 60 Hz SI 40RUA 25 40RUA 28 40RUA 30 UNIT 40RUQ 25 40RUS 28 40RUS 30 40RUS 25 MOTOR DRIVE Motor Pulley Pitch Diameter mm 109 2 134 6 109 2 134 6 109 2 134 6 A err ga I FAN DRIVE Pulley Pitch Dia mm 203 Pulley Bore mm 49 2 Belt No Section 2 B Belt Pitch mm 960 FAN SPEEDS r s Factory Setting 17 1 Max Allowable Speed r s 18 8 Change per 1 2 Turn of Moveable Motor Pulley 0 323 0 278 0 278 Flange MAX FULL TURNS FROM CLOSED POSITION SHAFTS CENTER DISTANCE mm 207 255 169 240 169 240 t It is possible to adjust drive so that fan speed exceeds maximum allowable DO NOT exceed 20 r s 31
49. urn the stem counterclockwise Do not turn the stem more than one full turn 3 Wait until suction pressure and superheat stabilize This may take more than 30 minutes 4 Continue adjustment until superheat reaches 10 F to 15 F 5 5 C to 8 3 C 5 Replace the seal cap tighten A INSTALLER INSTALLATEUR TXV superheat must be checked at initial unit start up and adjusted if necessary Superheat must be 10 15 deg F La surchauffe TXV doit tre v rifi e au moment de la mise en route initiale et ajust e si n cessaire La surchauffe doit tre comprise entre 10 et 15 degr s F 40RU500073 2 0 C10828 Fig 22 Label TXV Adjustment SERVICE Inspection and maintenance should be performed at regular intervals and should include the following Complete cleaning of cabinet fan wheel cooling coil condensate pan and drain heating coils and return air grille if present Inspection of panels and sealing of unit against air leakage Adjustment of fan motor belt bearings and wheels Cleaning or replacement of filters Testing for cooling heating system leaks Checking of all electrical connections A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before performing service or maintenance operations on unit always turn off main power switch to unit and install lockout tag Unit may have more than one power switch
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