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Table 7 – Filter Pressure Drop Table (IN. W.C.)

FILTER SIZE

in. (mm)

CFM

500

600

700

800

900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300

20X20X1

(508X508X25)

0.05 0.07 0.08 0.10 0.12 0.13 0.14 0.15

20X24X1

(508X610x25 )

0.09 0.10 0.11 0.13 0.14 0.15 0.16

24X30X1

(610X762x25)

0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.10

24X36X1

(610X914X25)

0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.13 0.14 0.14

Table 8 – 48EZ--A Wet Coil Pressure Drop (IN. W.C.)

Unit Size

Standard CFM (S.C.F.M)

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

24

0.06

0.07

0.08

0.09

0.10

30

0.12

0.15

0.19

0.23

0.27

36

0.07

0.11

0.18

0.26

0.35

42

0.04

0.07

0.10

0.15

0.21

48

0.11

0.14

0.17

0.22

0.28

60

0.10

0.17

0.23

0.31

0.36

Table 9 – Wet Coil Air Delivery (CFM) -- Downflow -- High Speed with 1--in. (25 mm) Filter and Economizer

UNIT SIZE

EXTERNAL STATIC PRESSURE (in. W.C.)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

36

1333

1289

1256

1214

1152

1118

1076

1035

997

950

42

1612

1569

1527

1481

1451

1393

1351

1317

1278

1242

48

2166

2085

2002

1919

1798

1709

1582

1467

1270

988

60

2298

2239

2180

2110

2044

1951

1862

1777

1697

1591

Table 10 – Dry Coil Air Delivery* -- Horizontal and Downflow Discharge -- Unit 48EZ--A24--60

UNIT

HEATING

RISE RANGE

MOTOR

SPEED

WIRE

COLOR

EXTERNAL STATIC PRESSURE (in. W.C.)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

48EZ(---,N)A24040

30 --- 60

o

F

(17 --- 33

o

C)

Low

Blue

CFM

754

650

538

429

--- ---

--- ---

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

40

46

56

NA

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

22

26

31

NA

NA

NA

NA

NA

NA

Med---Low

Pink

CFM

851

777

675

591

475

--- ---

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

36

39

45

51

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

20

22

25

28

NA

NA

NA

NA

NA

Medium

2

Red

CFM

941

851

774

684

576

479

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

32

36

39

44

52

NA

NA

NA

NA

Heating

Rise (

o

C)

18

20

22

25

29

NA

NA

NA

NA

Med---

High

1

Orange

CFM

1009

917

840

759

667

577

447

--- ---

--- ---

Heating

Rise (

o

F)

30

33

36

40

45

52

NA

NA

NA

Heating

Rise (

o

C)

17

18

20

22

25

29

NA

NA

NA

High

Black

CFM

1241

1167

1111

1036

969

881

818

731

640

Heating

Rise (

o

F)

NA

NA

NA

NA

31

34

37

41

47

Heating

Rise (

o

C)

NA

NA

NA

NA

17

19

21

23

26

48EZ(---,N)A24060

25 --- 55

o

F

(14 --- 31

o

C)

Low

Blue

CFM

754

650

538

429

--- ---

--- ---

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

NA

NA

NA

NA

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

NA

NA

NA

NA

NA

NA

NA

NA

NA

Med---Low

Pink

CFM

851

777

675

591

475

--- ---

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

52

NA

NA

NA

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

29

NA

NA

NA

NA

NA

NA

NA

NA

Medium

2

Red

CFM

941

851

774

684

576

479

--- ---

--- ---

--- ---

Heating

Rise (

o

F)

47

52

NA

NA

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

26

29

NA

NA

NA

NA

NA

NA

NA

Med---High

Orange

CFM

1009

917

840

759

667

577

447

--- ---

--- ---

Heating

Rise (

o

F)

44

48

53

NA

NA

NA

NA

NA

NA

Heating

Rise (

o

C)

24

27

29

NA

NA

NA

NA

NA

NA

High

1

Black

CFM

1241

1167

1111

1036

969

881

818

731

640

Heating

Rise (

o

F)

36

38

40

43

46

50

54

NA

NA

Heating

Rise (

o

C)

20

21

22

24

25

28

30

NA

NA

48E

Z

--

A

Содержание 48EZ(N) - A

Страница 1: ...Limit Switch 29 Burner Ignition 29 Main Burners 29 Outdoor Coil Indoor Coil Condensate Drain Pan 29 A09034 Fig 1 Unit 48EZ A Outdoor Fan 30 Electrical Controls and Wiring 30 Refrigerant Circuit 30 Ga...

Страница 2: ...ms against shipping list Immediately notify the nearest equipment distribution office if any item is missing To prevent loss or damage leave all parts in original packages until installation If the un...

Страница 3: ...3 A09450 Fig 2 48EZ A24 36 Unit Dimensions 48EZ A...

Страница 4: ...4 A09451 Fig 3 48EZ A42 60 Unit Dimensions 48EZ A...

Страница 5: ...S 1 Roof curb must be set up for unit being installed 2 Seal strip must be applied as required to unit being installed 3 Roof curb is made of 16 gauge steel 4 Attach ductwork to curb flanges of duct r...

Страница 6: ...t recirculate to the condenser coil Do not locate the unit in either a corner or under an overhead obstruction The minimum clearance under a partial overhang such as a normal house overhang is 48 in 1...

Страница 7: ...verflowing Prime the trap with water Connect a drain tube using a minimum of 3 4 in PVC or 3 4 in copper pipe all field supplied at the outlet end of the 2 in 51 mm trap Do not undersize the tube Pitc...

Страница 8: ...supply pipe within 6 ft 1 8 m of heating section 6 Install ground joint union close to heating section between unit manual shutoff and external manual main shut off valve 7 Pressure test all gas pipi...

Страница 9: ...3 7 3 17 3 7 3 17 4 7 3 17 4 7 INDOOR BLOWER Nominal Cooling Airflow CFM Size in mm Motor hp 800 10x10 254x254 1 2 800 10x10 254x254 1 2 1000 10x10 254x254 1 2 1000 10x10 254x254 1 2 1200 11x10 279x2...

Страница 10: ...ceed 0 08 IN W C If using accessory filter rack refer to filter rack installation instructions for correct filter size and quantity Table 2 Maximum Gas Flow Capacity NOMINAL IRON PIPE SIZE IN INTERNAL...

Страница 11: ...amage to the unit being installed When cutting duct panels do not contact or damage any internal components heat exchanger electric heat Do not use a saw blade that protrudes more than 1 in 25 mm into...

Страница 12: ...y Knockout Basepan Downflow Vertical Return Knockout A09060 Fig 8 Supply and Return Duct Opening Return Duct Panels Return Supply Duct Panels from Underside of Base Alternate Method Supply Duct Panels...

Страница 13: ...nd Fig 10 for reference when making high voltage connections Proceed as follows to complete the high voltage connections to the unit Single phase units 1 Run the high voltage L1 L2 and ground lead int...

Страница 14: ...thstand a 30 sec overload or shorted secondary condition If an overload or short is present correct overload condition and check for blown fuse on gas control board or Interface Fan Board Replace fuse...

Страница 15: ...before the time delay has expired 2 T2 energizes the compressor contactor via the High Pressure Switch HPS and Low Pressure Switch LPS The compressor and outdoor fan start Thermostat G energizes the...

Страница 16: ...DERATE MULTIPLIER FACTOR 0 2000 0 610 0 1 00 2001 3000 610 914 8 12 0 90 3001 4000 315 1219 12 16 0 86 4001 5000 1220 1524 16 20 0 82 5001 6000 1524 1829 20 24 0 78 6001 7000 1829 2134 24 28 0 74 7001...

Страница 17: ...ormal Operation An LED light emitting diode indicator is provided on the integrated gas unit controller IGC to monitor operation The IGC is located by removing the control access panel see Fig 19 Duri...

Страница 18: ...abnormal condition exists somewhere in the cooling system such as insufficient airflow across either coil or both coils CAUTION Proceed as follows 1 Remove caps from low and high pressure service fit...

Страница 19: ...wire from the LOW terminal on the interface fan board IFB See Fig 14 2 Determine correct normal cooling fan speed for unit and application Add the wet coil pressure drop in Table 8 to the system stati...

Страница 20: ...WIRE COLOR EXTERNAL STATIC PRESSURE in W C 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 48EZ N A24040 30 60oF 17 33oC Low Blue CFM 754 650 538 429 Heating Rise oF 40 46 56 NA NA NA NA NA NA Heating Rise oC 22...

Страница 21: ...665 538 451 Heating Rise oF 46 50 54 NA NA NA NA NA NA Heating Rise oC 25 28 30 NA NA NA NA NA NA Medium Red CFM 1088 1023 954 881 800 723 658 563 461 Heating Rise oF 41 43 47 50 NA NA NA NA NA Heatin...

Страница 22: ...CFM 1345 1282 1235 1194 1140 1095 1027 974 921 Heating Rise oF 33 35 36 37 39 41 43 46 48 Heating Rise oC 18 19 20 21 22 23 24 25 27 Medium Red CFM 1505 1452 1413 1358 1323 1282 1234 1169 1130 Heating...

Страница 23: ...nk CFM 1457 1404 1367 1318 1284 1233 1197 1144 1104 Heating Rise oF 60 NA NA NA NA NA NA NA NA Heating Rise oC 33 NA NA NA NA NA NA NA NA Medium2 Red CFM 1736 1695 1642 1601 1553 1512 1465 1427 1381 H...

Страница 24: ...8 49 49 51 51 53 Heating Rise oC 25 26 26 26 27 27 28 29 29 Med High1 Orange CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785 Heating Rise oF 41 42 42 43 44 45 46 47 49 Heating Rise oC 23 23 23 24 24...

Страница 25: ...25 A09068 Fig 15 208 230 1 60 Wiring Diagram Unit 48EZ A 48EZ A...

Страница 26: ...26 A09209 Fig 16 208 230 3 60 Wiring Diagram Unit 48EZ A 48EZ A...

Страница 27: ...27 A08019 Fig 17 Cooling Charging Table Subcooling 48EZ A...

Страница 28: ...pect blower wheel bi monthly to determine proper cleaning frequency 4 Check electrical connections for tightness and controls for proper operation each heating and cooling season Service when necessar...

Страница 29: ...Table 5 in these instructions for LED interpretation If lockout occurs unit may be reset by either momentarily interrupting power supply to unit or by turning selector switch to OFF position at the t...

Страница 30: ...l controls and wiring annually Be sure to turn off the gas supply and then the electrical power to the unit Remove access panels see Fig 19 to locate all the electrical controls and wiring Check all e...

Страница 31: ...supply and return air grilles are open and free from obstructions and that the air filter is clean When necessary refer to the Indoor Airflow and Airflow Adjustments section to check the system airfl...

Страница 32: ...rigerant The compressor used in this product is specifically designed to operate with Puron R 410A refrigerant and cannot be interchanged The compressor is an electrical as well as mechanical device E...

Страница 33: ...s Puron R 410A refrigerant which has higher operating pressures than R 22 and other refrigerants No other refrigerant may be used in this system Gauge set hoses andrecoverysystemmustbe designedto hand...

Страница 34: ...dip tube charge Puron units with cylinder in upright position and a commercial metering device in manifold hose Charge refrigerant into suction line TROUBLESHOOTING Use the Troubleshooting Guides See...

Страница 35: ...restriction and remove Compressor operates continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrig...

Страница 36: ...n of the indoor evaporator fan motor Ensure that the supply air temperature rise is in accordance with the range on the unit nameplate Clean or replace filters Flame sense fault LED 3 flashes The IGC...

Страница 37: ...N IS LEVEL CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS III START UP ELECTRICAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR C...

Страница 38: ...S 7310 W Morris St S Indianapolis IN 46231 Edition Date 08 09 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 48EZ 0...

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