Carrier 48VG-A Installation Instructions Manual Download

Page: 1 / 62

Summary of Contents for 48VG-A

Page 1: ...VG A Low NOx Model Available Induced Draft Combustion Air Blower 54 Flue Gas Passageways 54 Limit Switch 54 Burner Ignition 54 Main Burners 54 Removal of Gas Train 54 Outdoor Coil Indoor Coil Condensate Drain Pan 54 Outdoor Fan 55 Electrical Controls and Wiring 55 Refrigerant Circuit 56 Gas Input 56 Evaporator Airflow 56 Puron Items 56 TROUBLESHOOTING 57 START UP CHECKLIST 57 SAFETY CONSIDERATIONS...

Page 2: ...del number are dedicated Low NOx units designed for California installations These models meet the California maximum oxides of nitrogen NOx emissions requirements of 40 nanograms joule or less as shipped from the factory and must be installed in California Air Quality Management Districts or any other regions in North America where a Low NOx rule exists NOTE Low NOx requirements apply only to nat...

Page 3: ...l house overhang is 48 in 1219 mm above the unit top The maximum horizontal extension of a partial overhang must not exceed 48 in 1219 mm Do not place the unit where water ice or snow from an overhang or roof will damage or flood the unit Do not install the unit on carpeting or other combustible materials Slab mounted units should be at least 2 in 51 mm above the highest expected water and runoff ...

Page 4: ...materials are rated to hold the weight of the unit See Fig 6 3 Attach a clevis of sufficient strength in the middle of the straps Adjust the clevis location to ensure unit is lifted level with the ground After the unit is placed on the roof curb or mounting pad remove the top skid ...

Page 5: ...EOUIR_ n CLEARANCES TO COMBUSTIBLE MATL INCHES _I1_ TOP Of dr _IT 14 555 6 i dCT SIDE Of UNIT P SO 8 SIDE OPPOSITE DUCTS 14 555 6 BOTTOM OF UNIT i 2 12Z FLUE PANEL 56 9144 NEC REO_JIREDCLEARANCES I_CHES tR BETV EEN tr ITS OWE_ E_T_ SIDE 42 1066 8 UNIT AND UNGROUNDEDSURFACES POWER ENTRY SIDE _6 9i4 O UNIT _NO _LODK 0 _ CONCRETE WALLS A_iD OTHER GRODROEOSURFACES POWER ENTRY SIOE _2 _066 8 REQUIR pn ...

Page 6: ... 8 153 6 69 7 208 230460 110 9150 3 98 6 44 7 142 2 64 5 160 2 72 7 REQUIRE CLEARANCES TO COMBI _TIBLE MATL INCHES WM TOF OF UNIT S4 3556 KiET SI_E OF UNIT _ 5O 8 SIDE OPPOSITE OUCTS SgR HCTTO_ OF NN T 18 12 7 FLUE PANEL 56 R1_4 NEE REOUIRED CLEARANCE INCHES S_M BETWEENUNITS POWER ENTRY SIOE 42 SC 68 UNIT AND UNGROUNDED RFNCES POWER ENTR SIDE 76 9140 8NIT ANi BLOE_ OR CONCRETE WALLS ANDOTHER 6ROUN...

Page 7: ... F base IN IN IN IN IN mm mm mm mm mm 32 4 822 16 47 8 14 356 406 1214 2 7 69 43 9 1116 G H IN mm IN mm 30 6 778 46 1 1170 42 2 1072 Part Numbers CPRCURB010A00 and CPRCURB011A00 can be used on both small and large basepan units The cross supports must be located based on whether the unit is a small basepan or a large basepan NOTES 1 Roof curb must be set up for unit being installed 2 Seal strip mu...

Page 8: ...ACE AVANT DE PLACER UNIT ON ROOF CURB L U NITE SUR LA BASE DE TOIT 50CY502286 2 0 SMALL CABINET 24 30 Unit Ib kg Ib kg Rigging Weight 352 160 359 163 NOTE See dimensional drawing for corner weights SMALL CABINET 24 30 Unit Ib kg Ib kg Rigging Weight 390 177 416 189 NOTE See dimensional drawing for corner weights Standard Copper Jhbe Aluminum Fin LARGE CABINET 36 42 Unit Ib kg Ib kg Rigging Weight ...

Page 9: ...4 7 6OO 8OO 10x10 254x254 1 2 1050 2 44 2 55 6OO 8OO 10x10 254x254 1 2 1050 3 44 3 55 75O 1000 10x10 254x254 1 2 1050 2 44 2 55 75O 1000 10x10 254x254 1 2 1050 3 44 3 55 9OO 1200 11x10 279 4x254 3 4 1000 208 230 VAC Models 3 44 3 55 460 VAC Models 2 38 2 53 650 _ 15 420 _ 25 2 21 2 21 13 6 13 6 3000 3000 26 26 600 4 660 4 1 5 810 1 5 810 3 17 3 17 4 7 4 7 900 1050 1200 1400 11x10 11x10 279 4x254 2...

Page 10: ...f condensate water through a 3 4 in NPT fitting which exits through the base on the evaporator coil access side See Fig 3 4 for location Condensate water can be drained directly onto the roof in rooftop installations where permitted or onto a gravel apron in ground level installations Install a field supplied 2 in 51 mm condensate trap at the end of condensate connection to ensure proper drainage ...

Page 11: ... segments of piping system against physical and thermal damage Support all piping with appropriate straps hangers etc Use a n_ininmm of one hanger every 6 fl 1 8 m For pipe sizes larger than 1 2 in follow recommendations of national codes 3 Apply joint compound pipe dope sparingly and only to male threads of joint when making pipe connections Use only pipe dope that is resistant to action of lique...

Page 12: ...rs A09076 Basepan Downflow Return Knockout ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal iniury or death Before installing or servicing system always turn off main power to system and install lockout tag There may be more than one disconnect switch 1 Open all electrical disconnects before starting any service work 2 Remove horizontal metal duct covers to access ve...

Page 13: ...d supplied disconnect switch box may be mounted on the unit over the high voltage inlet hole when the standard power and low voltage entry points are used See Fig 3 and 4 for acceptable location NOTE Field supplied disconnect switch box should be positioned so that it does not cover up any of the unit gas combustion supply air louvers See unit wiring label Fig 15 17 and 18 and Fig 10 for reference...

Page 14: ... overload or short is present correct overload condition and check for blown fuse on Indoor Fan board or Integrated Gas Controller Replace fuse as required with correct size and rating PRE START UP ENVIRONMENTAL FIRE ELECTRICAL SHOCK HAZARD EXPLOSION Failure to follow this warning could result in personal iniury or death 1 Follow recognized safety practices and wear protective goggles when checkin...

Page 15: ...cepted practices NOTE Install a filter drier whenever the system has been opened for repair 3 Add a small charge of Puron R 410A refrigerant vapor to system and leak test unit 4 Recover refrigerant from refrigerant system and evacuate to 500 microns if no additional leaks are found 5 Charge unit with Puron R 410A refrigerant using an accurate scale Refer to unit rating plate for required charge St...

Page 16: ...el These inputs are based on natural gas with a heating value of 1025 Btu ft 3 at 0 60 specific gravity or propane gas with a heating value of 2500 Btu ft 3 at 1 5 specific gravity IN THE U S A The input rating for altitudes above 2 000 ft 610 m must be reduced by 4 for each 1 000 ft 305 m above see level For installations below 2 000 ft 610 m refer to the unit rating plate For installations above...

Page 17: ...re 460V ALTITUDE OF INSTALLATION FT ABOVE SEA LEVEL U S A Nameplate Input Btu hr 60000 90000 115000 130000 Orifice No Qty Manifold Press in W C Orifice No Qty Manifold Press in W C Orifice No Qty Manifold Press in W C Orifice No Qty Manifold Press in W C 0 to 2000 0 610 m 36 2 3 6 36 3 3 6 33 3 3 8 31 3 3 8 2001 to 3000 611 to 914 m 41 2 1 3 8 41 3 1 3 8 36 3 1 3 8 31 3 3 2 3001 to 4000 915 to 121...

Page 18: ...rew clockwise to increase gas input and coun terclockwise to decrease input see Fig 13 For 460 VAC models only Turn the plastic adjustment screw clockwise to increase gas input and counterclockwise to decrease input see Fig 14 Manifold pressure must be between 3 2 and 3 8 IN W C For high stage on 208 230 VAC models and for single stage on 460 VAC models 3 For 208 230 VAC models only Replace high s...

Page 19: ...ea level derate the unit 10 percent Table 7 Heating Inputs 460 VAC Models GAS SUPPLY PRESSURE IN W C MANIFOLD PRESSURE IN W C Natural1 Propane l HIGH STAGE LOW STAGE HEATING NUMBER INPUT OF HIGH STAGE ORIFICES BTUH Min Max Min Max Natural1 Propane l Natural1 Propane l 40 000 2 4 0 13 0 11 0 13 0 3 2 3 8 10 0M 1 0 1 4 2 0 4 8 6 4 60 000 3 4 0 13 0 11 0 13 0 3 2 3 8 10 0M 1 0 1 4 2 0 4 8 6 4 90 000 ...

Page 20: ...SSORY WHENUSED EENOTE 7 RE D I EL _Pk2 RED VlO YEL PL1 RED VlO YEL YEL VlO RED P2 IGC _ BLU Ol LI 150 120 9O H OVER OFFDELAYSPEED UP F BLU G_ GRY PI _ZW_J _O _ ii ii TO IGC SEE NOTE 4 5 WHEN USED _k CCH BLK _ BLK I P4 rqqqq Rqq J9 1 1 1 1 1 1 1 1 1 Y2Y1 GWIW2CRDH U C LPS HPS Fig 15 208 230 1 60 Connection Wiring Diagram Gas Inputs 40 60 90 KBtu hr BLK_ SOL RED_ YEL_FSo_z 7 ORG o o BRN __1 _LS2 RE_...

Page 21: ...IZED NOTE IFY2 DE ENERGIZED REMOVES CALLFORCOOLING OSECONDOFFDELAY NOTES 1 IFANYOFTHEORIGINAL WIRES FURNISHED AREREPLACED THEY MUSTBEREPLACED WITHTHESAME WIREORIT SEQUIVALENT 2 SEEPRE SALE LITERATURE FORTHERMOSTATS 3 USE75 DEGREES C COPPER CONDUCTORS FORFIELD INSTALLATION 4 REFER TOINSTALLATION INSTRUCTIONS FORCORRECT SPEED SELECTION FORIFM 5 SEEINSTALLATION INSTRUCTIONS FORPROPER HEATING AND COOL...

Page 22: ... RED BLK _ SCHEMATICsEE NOTE208 230 1 608 YEL BRN _ GRN_EL_ M BRN m__c_ o BLK TO IGC SEENOTE4 5 YELT_ K _ GRN YEL YEL _N GROUhDED_ BLK BRN 0 3_ SEE NOTE 7 P2 IGC BLU L1 150 120 90 HI OVER OFF DELAY SPEED UP BRN MGV BLU GRY C LPS BRN _BLU_BLU WHENUSED CCH _ PI P4 1 1 1 1 i i 1 1 i _ Y2Y1GWlW2C RDH U HPS BLK _BLK BLK _ SOL RED WHEN USED SEE NOTE 6 T STAT G Y1 Y2 Fig 16 208 230 1 60 Connection Wiring...

Page 23: ...R Y1 BLOWER ENERGIZED ENERGIZEDDE ENERGIZED DE ENERGEED NOTE IF Y2 DE ENERGIZED REMOVES CALL FOR COOLING O SECOND OFF DELAY T STAT Y_2 __z__ pNK _ Y_I __Z__ yEL _ G _ GRN W_I_ _Z__ WH T_ W_2_ _L__ BL E _ R___L_ RED_ DH__ _L_ BL U _ BRN NOTES I IFANYOF THEORIGINALWIRESFURNISHED AREREPLACED THEY MUSTBE REPLACEDWITHTHE SAMEWIREOR IT S EQUIVALENT 2 SEE PRE SALELITERATURE FORTHERMOSTATS 3 USE75DEGREESC...

Page 24: ...BRN FROM IFM SEENOTE 4 5 ORN YEL PRESSURE _ SWITCH P2 IGC F BRN MGV BLU G_ GRY WHEN USED X CCH C LPS HPS BRN_BLU_BLU_ BLK_ BLK BLK RED_ SOL FS I iO O BRN _ A13022 GRN YEL_ BLU _LS1 _LS2 VlO _Z_ RED_ WHEN SU_ED SEENOTE 6 VlO T STAT BLU _ DH RED _ R BRN_ C BLK _ W2 WHT_ _ w_ GRN _ G YEL_ YI PNK _ Y2 Fig 17 208 230 3 60 Connection Wiring Diagram Gas Inputs 40 60 90 KBtu hr 24 ...

Page 25: ...COND OFFDELAY T STAT Y2 _PNK Y1 _ YEL G _GRN wl _WHT w2 _ BLK R _RED DH Z_ BLU _ C _ BRN NOTES 1 IFANYOF THE ORIGINALWIRESFURNISHED AREREPLACEDTHEY MUST BEREPLACEDWITHTHE SAME WIREOR IT S EQUIVALENT 2 SEE PRE SALELITERATURE FORTHERMOSTATS 3 USE75 DEGREESC COPPERCONDUCTORS FORFIELD INSTALLATION 4 REFERTO INSTALLATION INSTRUCTIONS FORCORRECTSPEED SELECTION FORIFM 5 SEE INSTALLATION INSTRUCTIONS FOR ...

Page 26: ... BRN RED I B FROM IFM SEE NOTE 4 5 BLK RED ORN r _ _ ___ i YEL T i PRESSURE d u SWITCH LPKIT ACCESSORY WHEN USED ORN GROUNDED THRU I_ANOOFF YEL BRN SEE NOTE 7 P2 IGC F BLU L1 8 1 13 150 120 90 H OVER OFFDELAYSPEED UP F BRNGv BLU G_ GRY C LPS BRN _z_ _o _ 11111 TO IGC SEE NOTE 4 5 BLK BLK WHEN USED CCH _BLK GRN 2 7 P1 P4 FTTF F F_ 1 1 1 1 1 1 1 1 1 _ Y2Y1GWIW2 CRDH U 1 HPS BLK _ _SOL RED _J WHEN SE...

Page 27: ... 1 IF ANYOF THE ORIGINAL WIRES FURNISHEDARE REPLACED THEY MUST BE REPLACEDWITH THE SAME WIRE OR IT S EQUIVALENT 2 SEE PRE SALE LITERATUREFOR THERMOSTATS 3 USE 75 DEGREESC COPPER CONDUCTORS FOR FIELD INSTALLATION 4 REFER TO INSTALLATIONINSTRUCTIONS FORCORRECT SPEED SELECTION FOR IFM 5 SEE INSTALLATIONINSTRUCTIONS FOR PROPER HEATINGAND COOLING CONNECTIONS FOR YOUR UNIT 6 ON SOME MODELS LS1AND LS2 AR...

Page 28: ...RN HPS LPS C FBLK_ BLK O BLU_BLU_ BRN VIO BLK_dL_ IGC _ I BLK CAP1 OFM COMP SEE NOTE 10 _ BRN TO IFB SEE NOTE 4 BLK so i RED BLK GRY IFB SEE NOTE4 I r BRN HT F RED BRN RED GRY WHT RED BRN T STAT 5A FUSE BLU BLU VlO VIO YEL ORN GRY 3 RS _ WHEN USED SEE NOTE9 LPKITACCESSORY ml___ _ WHEN USED PRS YEL _oF S0 _77 ORG _0 T O BRN _Z GRN_EL _ _ _ TGROUND J THRU BRN STANDOFF Fig 19 460 3 60 Connection Wiri...

Page 29: ...I p2 4 R C__ o P1 5 Y2 DH Y U o P1 3 YI Y I LOW0 I HIGH 0 I GASHEAT 0 USE COPPER CONDUCTORS ONLY GRN VEL FIELD SUPPLY __ EQUIPGND 460 VAC 60 HZ 3 PH c 21 CCH _I I BLK_ BLK_BLK I OFM WHEN USED BLU COMP _ BLK IFM _ GRN YEL I CAP2_4 SEE NOTE 6 PRIMARY i 460v YEL BU RED BRN RED _ BLK _ SOL C 23 c YEL __I 3 YEL _C 13 IC I3 C 13 _C 13 RT _A FUS_IGC FS RS _ SLU VlO RED LS_ YEL P KITACCESSORY r pRS GvO_ M...

Page 30: ...or continues to run until LS resets When the air temperature at the limit switch drops to the low temperature setting of the limit switch the switch closes and completes the control circuit The direct spark ignition system cycles and the unit returns to normal heating operation Table 8 LED Indications STATUS CODE Normal Operation 2 No Power or Hardware Failure Limit Switch Fault Flame Sense Fault ...

Page 31: ...id line temperature See Table 12 6 Compare actual liquid line temperature with desired liquid line temperature Using a tolerance of 2 F 1 1 C add refrigerant if actual temperature is more than 2 F 1 1 C higher than proper liquid line temperature or remove refrigerant if actual temperature is more than 2 F 1 1 C lower than required liquid line temperature NOTE If the problem causing the inaccurate ...

Page 32: ...e chosen fan speed wire to LO COOL connection on the IGC Board see Fig 20 For 460 Vac models connect the chosen fan speed wire to LOW connection on the IFB see Fig 21 High Stage Cooling All models Using Tables 15 16 and 17 find the external static pressure drops for wet coil econonfizer and filter and add them to dry coil measured on the system Using this total static pressure use Table 13 208 230...

Page 33: ...ponding to the measured 327 97 82 87 82 77 Pressure of the Compressor Discharge line 336 99 94 89 84 79 7 Read across from the Pressure reading to obtain the liquid Jine 345 101 96 91 86 81 temperature for a required Subceeiing 354 103 98 93 88 83 8 Add charge if the measured temperature is higher than the table value 364 105 100 95 90 85 9 Remove charge if the measured temperature is lower than t...

Page 34: ...BHP 0 31 Low Stage Heat Rise F 15 C 8 High Stage Heat Rise F 23 C 13 0 2 525 0 07 36 20 NA 48VG A 208 230 VAC Models EXTERNAL STATIC PRESSURE IN W C 0 3 0 4 0 5 0 6 0 7 0 8 NA NA NA NA NA NA 597 489 0 06 0 06 31 38 17 21 49 NA 27 779 698 0 12 0 13 24 27 13 15 37 42 21 23 829 754 0 14 0 15 23 25 13 14 35 39 20 21 1206 1142 0 32 0 33 16 16 9 9 24 25 13 14 0 9 NA 1 NA NA NA NA NA NA NA NA NA 352 0 05...

Page 35: ...h Stage Heat Rise F NA NA NA NA NA NA NA NA C CFM 921 829 754 663 582 485 371 BHP 0 14 0 14 0 15 0 16 0 17 0 17 0 18 Low Stage Heat Rise F 31 34 38 43 49 NA NA NA C 17 19 21 24 27 High Stage Heat Rise F 48 54 NA NA NA NA NA NA C 27 30 CFM 1229 1171 1105 1049 980 913 838 775 679 516 BHP 0 28 0 30 0 30 0 31 0 32 0 33 0 33 0 34 0 34 0 33 Low Stage Heat Rise F NA NA 26 27 29 31 34 37 42 55 C 14 15 16 ...

Page 36: ... 13 14 16 18 22 High Stage Heat Rise F 35 38 43 50 NA NA NA NA NA NA C 19 21 24 28 CFM 877 779 698 598 519 410 BHP 0 12 0 12 0 13 0 14 0 15 0 15 Low Stage Heat Rise F 21 24 27 31 36 NA NA NA NA NA C 12 13 15 17 20 High Stage Heat Rise F 33 37 42 49 NA NA NA NA NA NA C 18 21 23 27 CFM 1139 1069 1012 937 870 786 724 626 512 381 BHP 0 22 0 23 0 24 0 24 0 25 0 26 0 26 0 27 0 27 0 28 Low Stage Heat Ris...

Page 37: ... 19 21 24 27 High Stage Heat Rise F 54 NA NA NA NA NA NA NA NA NA C 30 CFM 1139 1069 1012 937 870 786 724 626 512 381 BHP 0 22 0 23 0 24 0 24 0 25 0 26 0 26 0 27 0 27 0 28 Low Stage Heat Rise F 25 27 28 30 33 36 39 46 NA NA C 14 15 16 17 18 20 22 26 High Stage Heat Rise F 39 42 44 47 51 NA NA NA NA NA C 22 23 24 26 28 CFM 1229 1171 1105 1049 980 913 838 775 679 516 BHP 0 28 0 30 0 30 0 31 0 32 0 3...

Page 38: ...C 17 18 20 21 23 24 28 30 High Stage Heat Rise F 48 52 55 NA NA NA NA NA NA NA C 26 29 31 CFM 1213 1169 1110 1065 1016 964 923 878 820 777 BHP 0 16 0 17 0 17 0 19 0 20 0 21 0 22 0 23 0 24 0 25 Low Stage Heat Rise F NA NA 26 27 28 30 31 33 35 37 C 14 15 16 16 17 18 19 20 High Stage Heat Rise F 37 38 40 42 44 46 48 51 54 NA C 20 21 22 23 24 26 27 28 30 CFM 1251 1198 1149 1104 1066 1017 970 932 892 8...

Page 39: ...104 1066 1017 BHP 0 19 0 21 0 21 0 23 0 24 0 25 Low Stage Heat Rise F NA 36 37 39 40 42 C 20 21 22 22 23 High Stage Heat Rise F 54 56 59 61 63 NA C 30 31 33 34 35 CFM 1451 1415 1372 1327 1287 1249 248 BHP 0 29 0 30 0 31 0 32 0 35 59 Low Stage Heat Rise F NA NA NA NA NA NA C High Stage Heat Rise F 46 48 49 51 52 54 C 26 26 27 28 29 30 CFM 1466 1423 1384 1343 1308 1263 BHP 0 30 0 31 0 33 0 34 0 35 0...

Page 40: ... 21 22 24 High Stage Heat Rise F 41 43 46 48 51 54 NA NA NA C 23 24 25 27 28 30 CFM 1213 1169 1110 1065 1016 964 923 878 820 BHP 0 16 0 17 0 17 0 19 0 20 0 21 0 22 0 23 0 24 Low Stage Heat Rise F NA NA 26 27 28 30 31 33 35 C 14 15 16 16 17 18 19 High Stage Heat Rise F 37 38 40 42 44 46 48 51 54 C 20 21 22 23 24 26 27 28 30 CFM 1451 1415 1372 1327 1287 1249 1212 1168 1130 248 BHP 0 29 0 30 0 31 0 3...

Page 41: ...e F 40 42 44 47 49 52 56 60 64 NA C 22 23 25 26 27 29 31 33 36 High Stage Heat Rise F 63 NA NA NA NA NA NA NA NA NA C 35 CFM 1251 1198 1149 1104 1066 1017 970 932 892 839 BHP 0 19 0 21 0 21 0 23 0 24 0 25 0 26 0 27 0 28 0 29 Low Stage Heat Rise F NA 36 37 39 40 42 44 46 48 51 C 20 21 22 22 23 25 26 27 28 High Stage Heat Rise F 54 56 59 61 63 NA NA NA NA NA C 30 31 33 34 35 CFM 1451 1415 1372 1327 ...

Page 42: ... 0 6 0 7 0 8 0 9 904 703 587 501 449 380 340 0 10 0 09 0 09 0 09 0 10 0 11 0 12 48 61 NA NA NA NA NA NA 26 34 NA NA NA NA NA NA NA 1229 1177 1121 1066 1027 974 942 0 20 0 21 0 23 0 24 0 25 0 26 0 27 35 36 38 40 42 44 46 19 20 21 22 23 25 25 55 57 60 63 NA NA NA 30 32 33 35 1299 1240 1191 1139 1091 1050 1001 0 23 0 24 0 25 0 26 0 28 0 29 0 30 35 36 38 39 41 43 NA 19 20 21 22 23 24 52 54 57 59 62 64...

Page 43: ...9 51 53 56 59 NA C 23 24 25 26 27 28 30 31 33 High Stage Heat Rise F NA NA NA NA NA NA NA NA NA NA C CFM 1686 1650 1617 1576 1544 1503 1468 1433 1393 1356 BHP 0 42 0 44 0 45 0 46 0 48 0 49 0 51 0 52 0 53 0 55 Low Stage Heat Rise F 33 34 35 35 36 37 38 39 40 41 C 18 19 19 20 20 21 21 22 22 23 High Stage Heat Rise F 52 53 54 55 56 58 59 NA NA NA C 29 29 30 31 31 32 33 CFM 1854 1837 1781 1784 1720 16...

Page 44: ...53 55 57 60 63 NA NA C 26 27 28 29 31 32 33 35 High Stage Heat Rise F NA NA NA NA NA NA NA NA NA NA C CFM 1686 1650 1617 1576 1544 1503 1468 1433 1393 1356 BHP 0 42 0 44 0 45 0 46 0 48 0 49 0 51 0 52 0 53 0 55 Low Stage Heat Rise F 37 38 39 40 41 42 43 44 45 46 C 21 21 22 22 23 23 24 24 25 26 High Stage Heat Rise F 57 58 59 61 62 64 65 3 NA NA NA C 32 32 33 34 35 35 6 CFM 1854 1837 1781 1784 1720 ...

Page 45: ...4 0 5 0 6 0 7 0 8 0 9 904 703 587 501 449 380 340 0 10 0 09 0 09 0 09 0 10 0 11 0 12 48 61 NA NA NA NA NA NA 26 34 NA NA NA NA NA NA NA 1229 1177 1121 1066 1027 974 942 0 20 0 21 0 23 0 24 0 25 0 26 0 27 35 36 38 40 42 44 46 19 20 21 22 23 25 25 55 57 60 63 NA NA NA 30 32 33 35 1299 1240 1191 1139 1091 1050 1001 0 23 0 24 0 25 0 26 0 28 0 29 0 30 35 36 38 39 41 43 NA 19 20 21 22 23 24 52 54 57 59 ...

Page 46: ...9 51 53 56 59 NA C 23 24 25 26 27 28 30 31 33 High Stage Heat Rise F NA NA NA NA NA NA NA NA NA NA C CFM 1686 1650 1617 1576 1544 1503 1468 1433 1393 1356 BHP 0 42 0 44 0 45 0 46 0 48 0 49 0 51 0 52 0 53 0 55 Low Stage Heat Rise F 33 34 35 35 36 37 38 39 40 41 C 18 19 19 20 20 21 21 22 22 23 High Stage Heat Rise F 52 53 54 55 56 58 59 NA NA NA C 29 29 30 31 31 32 33 CFM 1878 1844 1805 1762 1731 16...

Page 47: ...3 1393 1356 BHP 0 42 0 44 0 45 0 46 0 48 0 49 0 51 0 52 0 53 0 55 Low Stage Heat Rise F 37 38 39 40 41 42 43 44 45 46 C 21 21 22 22 23 23 24 24 25 26 High Stage Heat Rise F 57 58 59 61 62 64 65 NA NA NA C 32 32 33 34 35 35 36 CFM 1878 1844 1805 1762 1731 1693 1655 1616 1570 1532 BHP 0 50 0 52 0 53 0 54 0 56 0 57 0 59 0 60 0 64 0 63 Low Stage Heat Rise F NA NA 35 36 36 37 38 39 40 41 C 19 20 20 21 ...

Page 48: ... 932 36 37 39 40 42 44 46 48 20 21 21 22 23 24 25 26 1451 1415 1372 1327 1287 1249 1212 1168 31 31 32 33 35 36 37 38 17 17 18 19 19 20 20 21 934 864 810 745 698 649 571 525 NA NA NA NA NA NA NA NA 1076 1026 972 918 872 827 771 714 63 NA NA NA NA NA NA NA 35 1213 1169 1110 1065 1016 964 923 878 56 58 61 64 NA NA NA NA 31 32 34 35 1251 1198 1149 1104 1066 1017 970 932 54 57 59 62 64 NA NA NA 30 32 3...

Page 49: ...n0 EXTERNAL STATIC PRESSURE IN W C 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 972 918 872 827 771 714 666 611 NA NA NA NA NA NA NA NA 1110 1065 1016 964 923 878 820 777 61 64 NA NA NA NA NA NA 34 35 1149 1104 1066 1017 970 932 892 839 59 62 64 NA NA NA NA NA 33 34 35 1372 1327 1287 1249 1212 1168 1130 1094 50 51 53 54 56 58 60 62 28 28 29 30 31 32 33 35 1552 1518 1483 1444 1406 1372 1340 1303 44 45 46 47 48 50...

Page 50: ...RNAL STATIC PRESSURE IN W C 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 1177 1121 1066 1027 974 942 887 839 NA NA NA NA NA NA NA NA 1341 1281 1236 1189 1139 1072 1027 NA NA NA NA NA NA NA NA 1617 1576 1544 1503 1468 1433 1393 1356 60 61 62 64 NA NA NA NA 33 34 35 36 1781 1784 1720 1698 1655 1625 1578 1532 54 54 56 57 58 59 61 63 30 30 31 32 32 33 34 35 2065 2013 1982 1941 1888 1860 1785 47 48 49 50 51 52 54 26 ...

Page 51: ... 26 EXTERNAL STATIC PRESSURE IN W C 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 1177 1121 1066 1027 974 942 887 839 NA NA NA NA NA NA NA NA 1341 1281 1236 1189 1139 1072 1027 NA NA NA NA NA NA NA NA 1805 1762 1731 1693 1655 1616 1570 1532 53 55 56 57 58 60 61 63 30 30 31 32 32 33 34 35 1956 1912 1872 1842 1802 1760 1719 1643 49 50 51 52 53 55 56 59 27 28 29 29 30 30 31 33 2065 2013 1982 1941 1888 1860 1785 47 4...

Page 52: ...200 600 1400CFM 12x20x1 12x20x1 2 0 0 09 0 14 0 16 0 18 0 25 0 28 0 30 2 5 305x508x25 305x508x25 1200 1800CFM 16x24x1 14x24x1 3 0 _ 0 10 0 11 0 12 0 13 0 14 0 16 0 16 3 5 406x610x25 356x610x25 1500 2200CFM 16x24x1 18x24x1 4 0 _ 0 15 0 17 0 18 0 20 0 21 0 22 0 23 0 23 5 0 406x610x25 457x610x25 Table 17 Filter Pressure Drop Table IN W C COOLING STANDARD CFM SCFM FILTER SIZE IN MM TONS 600 700 800 90...

Page 53: ...es are not in contact with refrigerant tubing or sharp metal edges 6 Check and inspect heating section before each heating season Clean and adjust when necessary 7 Check flue hood and remove any obstructions if necessary Air Filter IMPORTANT Never operate the unit without a suitable air filter in the return air duct system Always replace the filter with the same dimensional size and type as origin...

Page 54: ...ve control access panel See Fig 23 4 Disconnect gas piping at unit gas valve 5 Remove fan partition mounting bracket 2 screws located on the left side of control compartment on the fan partition panel Slide bracket forward bottom first to remove See Fig 22 6 Remove wires connected to gas valve Mark each wire 7 Remove the mounting screw that attaches the burner rack to the unit base See Fig 22 8 Pa...

Page 55: ...7 Replace grille Electrical Controls and Wiring Inspect and check the electrical controls and wiring annually Be sure to turn off the electrical power to the unit Remove access panels see Fig 23 to locate all the electrical controls and wiring Check all electrical connections for tightness Tighten all screw connections If any smoky or burned connections are noticed disassemble the connection clean...

Page 56: ...ms Metering Device Thermostatic Expansion Valve This metering device is a hard shutoff balance port TXV The TXV maintains a constant superheat at the evaporator exit resulting in higher overall system efficiency Pressure Switches Pressure switches are protective devices wired into control circuit low voltage They shut off compressor if abnormally high or low pressures are present in the refrigerat...

Page 57: ...d for HCFC and CFC refrigerants Take all necessary precautions to avoid exposure of the oil to the atmosphere Servicing Systems on Roofs with Synthetic Materials POE polyolester compressor lubricants are known to cause long term damage to some synthetic roofing materials Exposure even if immediately cleaned up may cause embrittlement leading to cracking to occur in one year or more When performing...

Page 58: ...th POE oils Vacuum pumps will not remove moisture from oil Do not use liquid line filter driers with rated working pressures less than 600 psig Do not leave Puron suction line filter driers in line longer than 72 hrs Do not install a suction line filter drier in liquid line POE oils absorb moisture rapidly Do not expose oil to atmosphere POE oils may cause damage to certain plastics and roofing ma...

Page 59: ...charge Restriction in liquid tube Refrigerant overcharged Dirty air filter Low refrigerant charge Metering device or low side restricted Insufficient evaporator airflow Temperature too low in conditioned area Outdoor ambient below 55 F 13 C Filter drier restricted REMEDY Call power company Replace fuse or reset circuit breaker Replace component Determine cause and correct Check wiring diagram and ...

Page 60: ...es High temperature limit switch is open that the supply air temperature rise is in accordance with the range on the unit nameplate Clean or replace filters Flame sense fault The IGC sensed flame that should not be present Reset unit If problem persists replace control board LED 3 flashes 4 consecutive limit switch Check the operation of the indoor evaporator fan motor and that faults Inadequate a...

Page 61: ...ETSCREW TIGHTNESS III START UP ELECTRICAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE RETURN AIR TEMPERATURE COOLING SUPPLY AIR DB GAS HEAT SUPPLY AIR PRESSURES AS INLET PRESSURE IN W C DB DB WB WB GAS MANIFOLD PRESSURE HIGH STAGE IN W C GAS MANIFOLD PRESSURE LOW STAGE 208 230 VAC MODELS REFRIGERANT SUCTION PSIG SUCTION LINE TEMP REFRIGE...

Page 62: ...Corp 7310 W Morris St Indianapolis IN 46231 Edition Date 07 13 Manufacturer reserves the right to change at any time specification8 and design8 without notice and without obligations Catalog No 48VG 02SI Replaces 48VG 01Sl d2 ...

Search results

Summary of Contents for 48VG-A

Reviews:

Related manuals for 48VG-A

Brands by name

Popular brands

Carrier 48VG-A, Installation Instructions Manual

Search results

Summary of Contents for 48VG-A

Reviews:

Related manuals for 48VG-A

Brands by name

Popular brands