Bryant 677D--A Installation Instructions Manual Download Page 6 | Manualshive

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A09562

Fig. 6 -- 677D----A36--60 Unit Dimensions

677D

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Summary of Contents for 677D--A

Page 1: ...2 Routing Power Leads Into Unit 12 Connecting Ground Lead to Ground Screw 12 Routing Control Power Wires 12 Outdoor Air Temperature Sensor OAT 12 Accessory Installation 13 Special Procedures for 208 v...

Page 2: ...gned for outdoor installation See Fig 1 Standard units are shipped in a horizontal discharge configuration for installation on a rooftop or on a cement slab see Fig 4 for roof curb dimensions Standard...

Page 3: ...ftop be sure the roof will support the additional weight WARNING Rigging and handling of this equipment can be hazardous for many reasons due to the installation location roofs elevated structures etc...

Page 4: ...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 d...

Page 5: ...5 A09561 Fig 5 677D A24 30 Unit Dimensions 677D A...

Page 6: ...6 A09562 Fig 6 677D A36 60 Unit Dimensions 677D A...

Page 7: ...9 1 8 825 2800 22 559 1 8 825 2800 22 559 1 8 825 INDOOR COIL Rows Fins in Face Area sq ft 3 17 3 7 3 17 3 7 3 17 3 7 3 17 4 7 3 17 4 7 3 17 4 7 3 17 4 7 INDOOR FAN Nominal Airflow Cfm Comfort Variabl...

Page 8: ...ser Interface instructions for more information Efficiency 1400 1400 1400 1750 1750 1750 Max 1600 1600 1600 2000 2000 2000 Furnace gas ht airflow Low Stage 815 1215 1255 845 1215 1255 Furnace gas ht a...

Page 9: ...ng could result in personal injury or death For vertical supply and return units tools or parts could drop into ductwork therefore install a 90 degree turn in the return ductwork between the unit and...

Page 10: ...ast 1 in 25 mm lower than the unit drain pan condensate connection to prevent the pan from overflowing Connect a drain tube using a minimum of field supplied 3 4 in PVC or field supplied 3 4 in copper...

Page 11: ...ompound pipe dope sparingly and only to male threads of joint when making pipe connections Use only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and or nati...

Page 12: ...anel See Fig 5 and 6 for location and size For single phase units connect leads to the black and yellow wires CONNECTING GROUND LEAD TO GROUND SCREW Connect the ground lead to the chassis using the gr...

Page 13: ...humidifier off Wire HUM and COM terminals directly to humidifier as shown in Fig 14 B Electronic Air Cleaner Electronic Air Cleaner terminals are provided on the Evolution Control Board EAC 1 and EAC...

Page 14: ...14 FURNACE BOARD HP AC BOARD OAT PACKAGE TWO BLACK WIRES TO CONNECT OAT SENSOR A12248 Fig 13 Control Plate A06357 Fig 14 Control Voltage Wiring Connections 677D A...

Page 15: ...al start up 1 Remove all access panels See Fig 25 2 Read and follow instructions on all DANGER WARNING CAUTION and INFORMATION labels attached to or shipped with unit 3 Make the following inspections...

Page 16: ...Code 16 System Communication Fault on amber STATUS LED No further troubleshooting information will be available at UI until communications are re established If either COMM LED does not light within...

Page 17: ...fer to status code 33 STATUS CODE 14 IGNITION LOCKOUT Control will auto reset after three hours Refer to status code 34 STATUS CODE 15 BLOWER MOTOR LOCKOUT Indicates the blower failed to reach 250 RPM...

Page 18: ...18 A10217C Fig 17 Connection Wiring Schematic 677D A Single Phase Gas Inputs 040 060 090 kBtu hr 677D A...

Page 19: ...19 A10217L Fig 16 Cont Ladder Wiring Schematic 677D A Single Phase Gas Inputs 040 060 090 kBtu hr 677D A...

Page 20: ...20 A10219C Fig 18 Connection Wiring Schematic 677D A Single Phase Gas Inputs 115 130 kBtu hr 677D A...

Page 21: ...21 A10219L Fig 17 Ladder Wiring Schematic 677D A Single Phase Gas Inputs 115 130 kBtu hr 677D A...

Page 22: ...onds during steady state operation STATUS CODE 42 INDUCER MOTOR FAULT Indicates inducer motor hasn t started within a prescribed time limit Check inducer motor and wiring STATUS CODE 45 CONTROL CIRCUI...

Page 23: ...apsed Pressing the FAN and TEMPERATURE UP buttons simultaneously defeats cycle timers See UI installation instructions for more detail HEAT PUMP SEQUENCE OF OPERATION COOLING AND HEATING OPERATION Wit...

Page 24: ...ir Temp Sensor Fault 53 Outdoor air sensor not reading or out of range Ohm out sensor and check wiring Outdoor Coil Sensor Fault 55 Coil sensor not reading or out of range Ohm out sensor and check wir...

Page 25: ...n is off when outdoor coil temp is outdoor air temperature plus 1_F 6_C or outdoor fan has been ON for 30 minutes Fan is turned off to allow refrigerant system to stabilize S In high stage and low sta...

Page 26: ...omentarily interrupting 230 VAC power or by interrupting 24 VAC power at SEC1 or SEC2 to the furnace board If flame is proved when there should be no flame present control will lock out of Gas Heating...

Page 27: ...ontrol Valve NOTE DO NOT set low stage manifold pressure less than 1 4 IN W C or more than 2 0 IN W C for natural gas If manifold pressure is outside this range change main burner orifices f Re instal...

Page 28: ...a 84 sec to complete one revolution b 3600 84 42 9 c 42 9 x 2 85 8 ft3 of gas flow hr d 85 8 x 1050 90 090 Btuh input In this example the nominal input rate for high stage is 90 000 Btu hr so the high...

Page 29: ...operation COMPONENT TEST The Evolution Furnace Board features a gas component test system to help diagnose a system problem in the case of a gas component failure To initiate the component test proced...

Page 30: ...be within the normal operating range of the unit TO USE COOLING CHARGING CHARTS Take the liquid line temperature and read the manifold pressure gauges Refer to the chart to determine what the liquid...

Page 31: ...047 42 0 014 0 017 0 020 0 024 0 027 0 031 0 035 0 039 0 043 48 0 027 0 032 0 036 0 041 0 046 0 052 0 057 0 063 0 068 60 0 029 0 032 0 036 0 040 0 045 0 049 0 053 Table 8 Filter Pressure Drop Table IN...

Page 32: ...as recommended in the accessory instructions 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...

Page 33: ...oil Straighten bent fins with a fin comb If coated with dirt or lint clean the coils with a vacuum cleaner using the soft brush attachment Be careful not to bend the fins If coated with oil or grease...

Page 34: ...iquid line and protects against low suction pressures caused by such events as loss of charge low airflow across indoor coil dirty filters etc It opens if the system pressure drops to about 20 psig If...

Page 35: ...cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position For cylinders equipped with a dip tube charge Puron units with cylinder in upright position and a com...

Page 36: ...en low and high stage operation so liquid pressure should not be used for troubleshooting Compressor current should increase 20 45 when switching from low to high stage The compressor solenoid when en...

Page 37: ...ht position Cylinders manufactured March 1 1999 and later DO NOT have a dip tube and MUST be positioned upside down to allow liquid to flow S Recovery cylinder service pressure rating must be 400 psig...

Page 38: ...load or increase unit size UI temperature set too low too high Reset UI setting Low refrigerant charge Locate leak repair and recharge Air in system Recover refrigerant evacuate system and re charge O...

Page 39: ...t 2 Check gas valve Inducer pressure switch not closing 1 Check pressure switch wires connections and tubing Repair or replace if necessary Inadequate heating Dirty air filter Clean or replace filter...

Page 40: ...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 GAS HEAT SUPPLY AIR PRES...

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