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Bryant LEGACY PURON 704D Series, Installation Instructions Manual

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Bryant LEGACY PURON 704D Series Installation Instructions Manual Download Page 5

5

Gask et around

outer edge

Insulated

deck

   pan

Gask et around

duct

S/A

R/A

HVAC 

  unit

base

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

*Provided with roof curb

Roof

Ductwork

field supplied

Insulation (field

supplied)

Roof curb*

Wood nailer*

Gask eting

inner flange*

Scre w

(NO TE A)

Roof Curb for Small Cabinet

    

Note A:  When unit mounting scre  w is used,

retainer bra cke  t must also be used.

HVAC   unit

base

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

*Provided with roof curb

Roof

Ductwork

field supplied

Insulation (field

supplied)

Roof curb*

Wood nailer*

Gask  eting

inner flange*

Scre w

(NOTE A)

Roof Curb for  

  Large Cabinet

Note A:  When unit mounting scre  w is used,

retainer bra cket

   must also be used.

A

B Typ.

Supply opening

(B x C)

Long

Support

D

F

Return opening

(B X C)

Insulated

deck pan

Short

Support

C Typ.

G

E

F

G

D

E

A05308

UNIT SIZE

CATALOG

NUMBER

A

IN. (MM)

B

IN. (MM)

C

IN. (MM)

D

IN. (MM)

E

IN. (MM)

F

IN. (MM)

G

IN. (MM)

704D024--036

CPRFCURB006A00

8 (203)

11 (279)

16--1/2 (419)

28--3/4 (730)

30--3/8 (771)

44--5/16 (1126)

45--15/16 (1167)

CPRFCURB007A00

14 (356)

11 (279)

16--1/2 (419)

28--3/4 (730)

30--3/8 (771)

44--5/16 (1126)

45--15/16 (1167)

704D042--060

CPRFCURB008A00

8 (203)

16--3/16 (411)

17--3/8 (441)

40--1/4 (1022) 41--15/16 (1065)

44--7/16 (1129)

46--1/16 (1169)

CPRFCURB009A00

14 (356) 16--3/16 (411)

17--3/8 (441)

40--1/4 (1022) 41--15/16 (1065)

44--7/16 (1129)

46--1/16 (1169)

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. Roof curb is made of 16--gauge steel.
4. Attach ductwork to curb (flanges of duct rest on curb).
5. Insulated panels: 1--in. (25.4 mm) thick fiberglass 1 lb. density.
6. When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic

conditions. This bracket is available through Micrometl.

Fig. 4 -- Roof Curb Dimensions

704D

Summary of Contents for LEGACY PURON 704D Series

Page 1: ...f this equipment can be hazardous due to mechanical and electrical components Only trained and qualified personnel should install repair or service this equipment Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters All other operations must be performed by trained service personnel When working on this equipment observe precautions in the literatu...

Page 2: ...Adequate ventilation and outdoor air must be provided The outdoor fan draws air through the outdoor coil and discharges it through the top fan grille Be sure that the fan discharge does not recirculate to the outdoor 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 1219 2 mm above...

Page 3: ...3 A08584 Fig 2 704D024 036 Unit Dimensions 704D ...

Page 4: ...4 A08585 Fig 3 704D042 060 Unit Dimensions 704D ...

Page 5: ... Insulate d deck pan Short Support CTyp G E F G D E A05308 UNIT SIZE CATALOG NUMBER A IN MM B IN MM C IN MM D IN MM E IN MM F IN MM G IN MM 704D024 036 CPRFCURB006A00 8 203 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 CPRFCURB007A00 14 356 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 704D042 060 CPRFCURB008A00 8 203 16 3 16 411 17 3 8 441 40 1 4 1022 41 ...

Page 6: ...event the rigging straps from damaging the unit If the skid is not available use a spreader bar of sufficient length to protect the unit from damage 2 Remove 4 screws in unit corner posts 3 Attach each of the 4 metal rigging brackets under the panel rain lip See Fig 5 Use the screws removed in step 2 above to secure the brackets to the unit PROPERTY DAMAGE HAZARD Failure to follow this warning cou...

Page 7: ... is installed use fireproof canvas or similar heat resistant material connector between ductwork and unit discharge connection If flexible duct is used insert a sheet metal sleeve inside duct Heat resistant duct connector or sheet metal sleeve must extend 24 in 609 59 mm from electric heater element 3 Size ductwork for cooling air quantity cfm The minimum air quantity for proper electric heater op...

Page 8: ...in accordance with NFPA 70 NEC latest edition in Canada Canadian Electrical Code CSA C22 1 and local electrical codes WARNING UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the unit being installed 1 Make all electrical connections in accordance with NFPA 70 NEC latest edition and local electrical codes governing such wiring In Canada all electrical connections...

Page 9: ...ire Gage AWG color coded insulated 35 C minimum wires to make the control voltage connections between the thermostat and the unit If the thermostat is located more than 100 ft 30 5 m from the unit as measured along the control voltage wires use no 16 AWG color coded insulated 35 C minimum wires STANDARD CONNECTION Locate the six low voltage thermostat leads in 24 volt splice box See Fig 11 for con...

Page 10: ...0 10x10 254x254 1 2 1050 1200 11x10 279 4x254 3 4 1000 1400 11x10 279 4x254 3 4 1075 1600 1750 11x10 279 4x254 11x10 279 4x254 1 0 1075 1 0 1040 HIGH PRESSURE SWITCH psig Cut out Reset Auto 650 15 420 25 LOSS OF CHARGE LOW PRES SURE SWITCH Liquid Line psig cut out Reset auto 20 5 45 10 RETURN AIR FILTERS Throwaway Size in Throwaway Size mm 20x20x1 508x508x25 20x24x1 508x610x25 24x30x1 610x762x25 2...

Page 11: ...ant from system and evacuate to 500 microns if no additional leaks are found 5 Charge unit with Puron R 410A refrigerant using a volumetric charging cylinder or accurate scale Refer to unit rating plate for required charge Step 2 Start Up Cooling Section And Make Adjustments Complete the required procedures given in the Pre Start Up section before starting the unit Do not jumper any safety devices...

Page 12: ...peed ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Disconnect electrical power to the unit and install lockout tag before changing blower speed WARNING The fan speed of the unit is connected to the HIGH terminal on the interface fan board IFB See Fig 12 13 14 and 15 The unit is factory shipped with a fan speed as noted in Table 4 There are 4 additi...

Page 13: ... 1980 1945 1905 1864 1793 High Black CFM 2344 2306 2259 2203 2141 2070 1991 1902 1803 704D060 Med Low Pink CFM 1678 1635 1602 1558 1513 1474 1438 1404 1349 Medium1 Red CFM 1962 1915 1880 1843 1794 1753 1711 1675 1628 Med High Orange CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785 High Black CFM 2461 2409 2339 2286 2192 2140 2062 1968 1874 Air delivery values are without air filter and are for dry...

Page 14: ...14 A08050 Fig 13 Wiring Diagram 208 230 1 60 704D ...

Page 15: ...15 A08051 Fig 14 Wiring Diagram 208 230 3 60 704D ...

Page 16: ...16 A08007 Fig 15 Wiring Diagram 460 3 60 704D ...

Page 17: ...17 A08490 Fig 16 Cooling Charging Chart 704D ...

Page 18: ...esult in personal injury or death 1 Turn off electrical power to the unit and install lockout tag before performing any maintenance or service on this unit 2 Use extreme caution when removing panels and parts 3 Never place anything combustible either on or in contact with the unit WARNING UNIT OPERATION HAZARD Failure to follow this caution may result in equipment damage or improper operation Erro...

Page 19: ... fins from inside to outside the unit On units with an outer and inner condenser coil be sure to clean between the coils Be sure to flush all dirt and debris from the unit base Inspect the drain pan and condensate drain line when inspecting the coils Clean the drain pan and condensate drain by removing all foreign matter from the pan Flush the pan and drain trough with clear water Do not splash wa...

Page 20: ...ystem under pressure it is not advisable to remove this device for troubleshooting unless you are reasonably certain that a problem exists If switch must be removed remove and recover all system charge so that pressure gauges read 0 psi 0 Pa Never open system without breaking vacuum with dry nitrogen HIGH PRESSURE SWITCH The high pressure switch is located in the discharge line and protects agains...

Page 21: ...0 x 10 ft 3 x 3 m area 2 Cover area in front of the unit service panel with a terry cloth shop towel to absorb lubricant spills prevent run offs and protect drop cloth from tears caused by tools or components 3 Place terry cloth shop towel inside unit immediately under component s to be serviced and prevent lubricant run offs through the louvered openings in the unit base 4 Perform required servic...

Page 22: ... with 750 psig service pressure rating S Leak detectors should be designed to detect HFC refrigerant S Puron as with other HFCs is only compatible with POE oils S Vacuum pumps will not remove moisture from oil S Only use factory specified liquid line filter driers with rated working pressures no less than 600 psig S Do not install a suction line filter drier in liquid line S POE oils absorb moistu...

Page 23: ...ve compressor Replace and determine cause Insufficient line voltage Determine cause and correct Blocked outdoor coil Determine cause and correct Defective run start capacitor overload or start relay Determine cause and replace Faulty outdoor fan motor or capacitor Replace Restriction in refrigerant system Locate restriction and remove Compressor operates continuously Dirty air filter Replace filte...

Page 24: ...HTNESS III START UP ELECTRICAL SUPPLY VOLTAGE __________________________________ COMPRESSOR AMPS_________________________________ INDOOR EVAPORATOR FAN AMPS___________ TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE ___________DB RETURN AIR TEMPERATURE ___________DB ___________WB COOLING SUPPLY AIR ___________DB ___________WB PRESSURES REFRIGERANT SUCTION ___________PSIG SUCTION LINE TEMP _________...

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