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C99098

UNIT SIZE

ODS ORDERING NUMBER

A

IN. [MM]

B

IN. [MM]

C

IN. [MM]

D

IN. [MM]

50JZ

Roof Curb

024-036

CPRFCURB006A00

8 [203]

11-27/32 [301]

30-5/8 [778]

28-3/4 [730]

CPRFCURB007A00

14 [356]

11-27/32 [301]

30-5/8 [778]

28-3/4 [730]

042-060

CPRFCURB008A00

8 [203]

15-27/32 [402]

42-1/8 [1070]

40-1/4 [1022]

CPRFCURB009A00

14 [356]

15-27/32 [402]

42-1/8 [1070]

40-1/4 [1022]

Fig. 4—Roof Curb Dimensions

NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied as required to unit being installed.
3. Dimensions in [ ] are in millimeters.
4. Roof curb is made of 16 gauge steel.
5. Table lists only the dimensions per part number that have changed.
6. Attach ductwork to curb (flanges of duct rest on curb).
7. Insulated panels: 1-in. thick fiberglass 1 lb density.
8. Dimensions are in in.

NOTES:
1.  Roof curb must be setup for unit being installed.
2.  Seal strip (gasket) must be applied as required.
3.  Dimensions are in inches.
4.  Attach ductwork to flanges of the curb.
5.  R/A = Return Air & S/A = Supply Air

R/A

S/A

Gasket inner

flange

Insulated
desk pan

Gasket around

duct

Gasket outer

flange

HVAC unit

base

*Gasketing

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant strip

field supplied

*Provided with roofcurb

Roof

Duct work

field supplied

Insulation (field

supplied)

Roofcurb*

Wood nailer*

Gasketing

inner flange*

Flashing Detail

Supply opening

(11" x 16 

1

/

2

"-clear)

Long

Support

Side

End

D

44 

5

/

16

"

Return opening

(11" X 16 

1

/

2

"-clear)

17 

3

/

8

"

Insulated
deck pan

Short

Support

Long

Support

11" Typ.

44 

5

/

16

"

13"*

13"*

28 

3

/

4

"

Roof opening for

supply duct

Roof opening for

return duct

Outline of

roofcurb

0"

0"

0"

*Roof opening dimensions shown are
for standard ductwork. If concentric duct
is used, adjust per manufacturers
instructions.

Roof Opening Detail

C

B

A

5

Summary of Contents for 50JZ024

Page 1: ...cautions in the literature tags and labels attached to the unit and other safety precautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazin...

Page 2: ...house overhang is 48 in above the unit top The maximum horizontal extension of a partial over hang must not exceed 48 in IMPORTANT Do not restrict outdoor airflow An air restriction at either the out...

Page 3: ...ENTS 36 914 UNIT TOP 48 1219 SIDE OPPOSITE DUCTS 36 914 DUCT PANEL 12 304 8 MINIMUM DISTANCES IF UNIT IS PLACED LESS THAN 12 IN 304 8 MM FROM WALL SYSTEM THEN THE SYSTEM PERFORMANCE MAY BE COMPROMISED...

Page 4: ...IL ACCESS SIDE 36 00 914 0 POWER ENTRY SIDE 36 00 914 0 EXCEPT FOR NEC REQUIREMENTS UNIT TOP 48 00 1219 0 SIDE OPPOSITE DUCTS 36 00 914 0 DUCT PANEL 12 00 304 8 MINIMUM DISTANCES IF UNIT IS PLACED LES...

Page 5: ...S 1 Roof curb must be setup for unit being installed 2 Seal strip gasket must be applied as required 3 Dimensions are in inches 4 Attach ductwork to flanges of the curb 5 R A Return Air S A Supply Air...

Page 6: ...t duct connector or sheet metal sleeve must extend 24 in from electric heater element 1 Size ductwork for cooling air quantity cfm The minimum air quantity for proper electric heater operation is list...

Page 7: ...2 0 040 2 0 038 2 0 046 2 0 052 OUTDOOR COIL Rows Fins in Face Area sq ft 2 17 8 5 2 17 10 3 2 17 10 3 2 17 13 5 2 17 13 5 2 17 15 4 OUTDOOR FAN Nominal Airflow CFM Diameter Motor HP RPM 2350 22 1 8 8...

Page 8: ...orrection of improper voltage and or phase imbalance 4 Insulate low voltage wires for highest voltage contained within conduit when low voltage control wires are in same conduit as high voltage wires...

Page 9: ...Fig 12 Wiring Schematics 208 230 1 60 C00097 9...

Page 10: ...Fig 13 Wiring Schematics 208 230 3 60 C00098 10...

Page 11: ...Fig 14 Wiring Schematics 460 3 60 C00099 11...

Page 12: ...50 3 57 2 72 8 83 3 95 4 109 3 40 40 40 40 60 60 80 90 100 110 208 230 3 60 187 253 15 4 88 0 0 9 4 1 3 8 5 0 7 5 10 0 11 3 15 0 15 0 20 0 10 4 12 0 20 8 24 1 31 3 36 1 41 6 48 0 24 3 24 3 24 3 24 3 3...

Page 13: ...percent of voltage imbalance Voltage imbalance max voltage deviation from average voltage 100 x average voltage EXAMPLE Supply voltage is 460 3 60 AB 452 v BC 464 v AC 455 v 452 464 455 Average Voltag...

Page 14: ...leak is detected see following Check for Refrigerant Leaks section c Inspect all field and factory wiring connections Be sure that connections are completed and tight d Inspect coil fins If damaged d...

Page 15: ...h Accurater Metering Device Arrow indicates direction of flow Metering Position Bypass Position HPS Fig 21 Typical Heat Pump Operation Heating Mode 1 Hot gas from compressor flows through the 4 way va...

Page 16: ...and temperature sensing devices are required Connect the pressure gauge to the service port on the suction line Mount the tempera ture sensing device on the suction line and insulate it so that the ou...

Page 17: ...411 394 381 Cfm 1374 1290 1205 1116 1020 916 Med Watts 523 506 490 471 449 426 Cfm 1500 1408 1301 1190 1082 977 High Watts 645 628 610 595 584 575 Cfm 1474 1369 1267 1169 1069 962 42 Low Watts 660 639...

Page 18: ...TEMP F C 125 52 115 46 105 41 95 35 85 29 75 24 65 18 55 13 45 7 50JZ500066 Fig 24 Cooling Charging Chart 50JZ 030 Units C00083 030 60 Hz COOLING CHARGING CHART For Use with Units Using R410a Refrige...

Page 19: ...oling Charging Chart 50JZ 060 Units C00087 060 60 Hz COOLING CHARGING CHART For use with units using R410a Refrigerant 80 90 100 110 120 130 140 150 160 170 180 20 30 40 50 60 70 80 SUCTION LINETEMPER...

Page 20: ...COIL INDOOR COIL AND CONDENSATE DRAIN PAN Inspect the outdoor coil indoor coil and conden sate drain pan at least once each year The coils are easily cleaned when dry therefore inspect and clean the...

Page 21: ...at 610 psig High pressure may be caused by a dirty outdoor coil failed fan motor or outdoor air recirculation To check switch 1 Turn off all power to unit 2 Disconnect leads on switch 3 Apply ohmeter...

Page 22: ...or 60 sec on 030 060 sizes or 30 sec on 024 size after thermostat is satisfied This delay enables blower to remove residual cooling in coil after compression shutdown thereby improving efficiency of s...

Page 23: ...es with 750 psig service pressure rating Leak detectors should be designed to detect HFC refrigerant Puron as with other HFCs is only compatible with POE oils Vacuum pumps will not remove moisture fro...

Page 24: ...ities shown on nameplate Defective compressor Replace and determine cause Insufficient line voltage Determine cause and correct Blocked outdoor coil Determine cause and correct Defective run start cap...

Page 25: ...IST REMOVE AND STORE IN JOB FILE I PRELIMINARY INFORMATION Model No Serial No Date Technician II PRE START UP ___ Verify that all packing materials have been removed from unit ___ Remove all shipping...

Page 26: ...26...

Page 27: ...27...

Page 28: ...46231 50jz 1si Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 5a 5a PC 101 Catalog No 565...

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