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Bryant 581J-17-28, Service And Maintenance Instructions

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Bryant 581J-17-28 Service And Maintenance Instructions Download Page 66

66

APPENDIX III. FAN PERFORMANCE

Table 24 – 581J*D17

VERTICAL SUPPLY / RETURN 

15 TON

CFM

Available External Static Pressure (in. wg)

0.2

0.4

0.6

0.8

1.0

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

4500

494

0.77

583

1.09

662

1.43

732

1.80

796

2.19

4900

522

0.93

605

1.27

681

1.64

750

2.03

813

2.44

5250

547

1.10

626

1.45

700

1.84

766

2.24

828

2.67

5650

577

1.32

651

1.68

721

2.09

786

2.51

846

2.96

6000

603

1.53

674

1.91

741

2.33

804

2.78

863

3.24

6400

634

1.81

701

2.20

765

2.64

826

3.10

883

3.59

6750

662

2.07

725

2.49

787

2.94

846

3.42

902

3.92

7150

694

2.42

754

2.85

813

3.31

869

3.81

923

4.33

7500

722

2.74

779

3.19

836

3.67

890

4.19

943

4.72

CFM

Available External Static Pressure (in. wg)

1.2

1.4

1.6

1.8

2.0

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

4500

856

2.60

911

3.02

963

3.46

1012

3.92

1059

4.39

4900

871

2.86

926

3.30

977

3.76

1026

4.23

1072

4.72

5250

885

3.11

939

3.57

990

4.05

1038

4.54

-

-

5650

903

3.43

956

3.91

1006

4.40

-

-

-

-

6000

918

3.72

971

4.22

1020

4.73

-

-

-

-

6400

937

4.09

988

4.61

-

-

-

-

-

-

6750

954

4.44

-

-

-

-

-

-

-

-

7150

975

4.87

-

-

-

-

-

-

-

-

7500

-

-

-

-

-

-

-

-

-

-

Boldface

 indicates alternate standard static drive package required.

Medium Static Motor and Drive - 697-863 RPM, Max BHP 3.7
Std Static Motor and Drive - 514-680 RPM, Max BHP 2.9
High Static Motor and Drive - 826-1009 RPM, Max BHP 4.9

-

Outside operating range                 

Italics

 - 

requires high static drive package with different motor pulley.

Table 25 – 581J*D20

VERTICAL SUPPLY / RETURN

17.5 TON

CFM

Available External Static Pressure (in. wg)

0.2

0.4

0.6

0.8

1.0

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

5250

547

1.10

626

1.45

700

1.84

766

2.24

828

2.67

5700

581

1.35

655

1.72

724

2.12

789

2.55

849

3.00

6150

615

1.63

684

2.02

750

2.44

812

2.90

871

3.37

6550

646

1.92

711

2.32

774

2.77

834

3.24

891

3.73

7000

682

2.28

743

2.71

803

3.17

860

3.66

915

4.17

7450

718

2.70

775

3.14

832

3.62

887

4.13

940

4.67

7900

755

3.16

809

3.62

863

4.12

915

4.65

966

5.21

8300

787

3.62

839

4.09

891

4.61

941

5.16

990

5.73

8750

825

4.18

874

4.68

923

5.22

971

5.78

1018

6.38

CFM

Available External Static Pressure (in. wg)

1.2

1.4

1.6

1.8

2.0

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

RPM

BHP

5250

885

3.11

939

3.57

980

4.05

1038

4.54

1084

5.04

5700

905

3.47

958

3.95

1008

4.45

1055

4.96

1100

5.48

6150

925

3.86

977

4.36

1026

4.88

1073

5.42

1118

5.96

6550

945

4.24

995

4.76

1043

5.30

1090

5.86

1134

6.42

7000

967

4.71

1017

5.26

1064

5.82

1109

6.39

-

-

7450

991

5.22

1039

5.79

1085

6.38

-

-

-

-

7900

1015

5.78

1062

6.38

-

-

-

-

-

-

8300

1038

6.33

-

-

-

-

-

-

-

-

8750

-

-

-

-

-

-

-

-

-

-

Boldface

 indicates alternate standard static drive package required.

Medium Static Motor and Drive - 713-879 RPM, Max BHP 4.9
Std Static Motor and Drive - 622-822 RPM, Max BHP 3.7
High Static Motor and Drive - 882-1078 RPM, Max BHP 6.5 / 6.9 / 7.0 / 8.3; Voltage 208 / 230 / 460 / 575V

-

Outside operating range
Requires high static drive package with different motor pulley. Confirm Max BHP coverage based on unit voltage selected.

Summary of Contents for 581J-17-28

Page 1: ...erform the basic maintenance functions of replacing filters Trained service personnel should perform all other operations When working on air conditioning equipment observe precautions 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 unbrazing operations Have fire e...

Page 2: ...uipment manufacturer WARNING UNIT DAMAGE HAZARD Failure to follow this caution can result in reduced unit performance or unit shutdown High velocity water from a pressure washer garden hose or compressed air should never be used to clean a coil The force of the water or air jet will bend the fin edges and increase airside pressure drop CAUTION OPERATIONAL TEST ALERT Failure to follow this ALERT co...

Page 3: ...onditions and usage patterns dictate Air Conditioning Condenser fan motor mounting bolts tightness Compressor mounting bolts Condenser fan blade positioning Control box cleanliness and wiring condition Wire terminal tightness Refrigerant charge level Evaporator coil cleaning Evaporator blower motor amperage Heating Heat exchanger flue passageways cleanliness Gas burner condition Gas manifold press...

Page 4: ... off all unit power and Lockout Tagout the unit disconnect switch DO NOT reach into the fan section with power still applied to the unit WARNING Supply Fan Assembly The supply fan system consists of two forward curved centrifugal blower wheels mounted on a solid blower shaft that is supported by two greasable pillow block concentric bearings A fixed pitch driven fan pulley is attached to the fan s...

Page 5: ...ed See Fig 5 Adjustable Pitch Pulley on Motor The motor pulley is an adjustable pitch type that allows a servicer to implement changes in the fan wheel speed to match as installed ductwork systems The pulley consists of a fixed flange side that faces the motor secured to the motor shaft and a movable flange side that can be rotated around the fixed flange side that increases or reduces the pitch d...

Page 6: ...ow total design airflow rate 100 operation During ventilation mode the system will operate the fan motor at 2 3 speed Identifying Factory Option This supplement only applies to units that meet the criteria detailed in Table 1 If the unit does not meet that criteria discard this document Table 1 Model Size VFD Option Indicator Model Sizes Position in Model Number VDP FIOP Indicator 581J 17 28 17 G ...

Page 7: ...otor mounting band 19 Make sure the teeth of the external tooth lock washer make contact with the painted base of the motor This washer is essential for properly grounding the motor 20 Install four new lock washers and four nuts on the bolts on the bottom of the motor mounting plate but do not tighten the mounting bolts at this time 21 Set the new motor and motor mounting bracket back onto the uni...

Page 8: ...row Composite two row coils are two single row coils fabricated with a single return bend end tubesheet Recommended Condenser Coil Maintenance and Cleaning Routine cleaning of coil surfaces is essential to maintain proper operation of the unit Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit The following mainte...

Page 9: ... a field supplied fastener 8 Reposition the outer coil section and remove the coil corner post from between the top panel and center post Reinstall the coil corner post and replace all screws EVAPORATOR COILS The evaporator coil uses the traditional round tube plate fin RTPF technology Tube and fin construction consists of various optional materials and coatings see APPENDIX I MODEL NUMBER NOMENCL...

Page 10: ... corrosion at the fin tube interface where dissimilar materials are in contact If there is dirt below the surface of the coil use the Totaline environmentally sound coil cleaner CAUTION PERSONAL INJURY HAZARD Failure to follow this WARNING can result in severe personal injury and reduced unit performance High velocity water from a pressure washer garden hose or compressed air should never be used ...

Page 11: ... PERFECT HUMIDITY DEHUMIDIFICATION SYSTEM Units with the factory equipped Perfect Humidity option are capable of providing multiple modes of improved dehumidification as a variation of the normal cooling cycle The design of the Perfect Humidity system allows for two humidity control modes of operation of the rooftop unit utilizing a common subcooling reheat dehumidification coil located downstream...

Page 12: ...s a standard feature Units with Perfect Humidity FIOP also include a factory installed head pressure control system Motormaster I to provide proper liquid pressure during reheat modes Unique controls include a Reheat Relay Board RHB evaporator coil freezestat secondary low pressure switch and a low outdoor temperature lockout switch LTLO Units with two refrigeration circuits include a solenoid val...

Page 13: ...R COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VALVE TXV VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE C07123A Fig 17 Subcooling Mode Reheat 1 Perfect Humidity System CONDENSER COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VALVE TXV VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE C07124A Fig 18 Hot Gas Reheat Mode Reh...

Page 14: ...er FPT Freeze Protection Thermostat IFM Indoor supply Fan Motor LSV Liquid Solenoid Valve LTLO Low Temperature Lockout REHEAT Connection Strip REHEAT on CTB Table 3 Inputs Modes Outputs Summary Y1 Y2 W1 G HUM LT LO MODE COMP 1 COMP 2 IFM LSV 1 LSV2 LSV NOT DSV1 DSV2 OFF OFF OFF ON OFF Normal Fan OFF OFF ON G OFF OFF ON R OFF OFF ON OFF OFF On OFF Normal Cool1 ON Y 1 OFF ON G OFF OFF ON R OFF OFF O...

Page 15: ...r LDV Valve Operation No 24V signal to input terminals Check using Cool Reheat1 Valve Test Service Test HMZR CRC using ComfortLink Scrolling Marquee Check CRC Relay Operation Check Wiring Check transformer and circuit beaker or fuses Solenoid coil burnout Check continuous over voltage is less than 10 Check under voltage is less than 15 Check for missing coil assembly parts Check for damaged valve ...

Page 16: ...emperature increases at the bulb which increases the pressure on the topside of the diaphragm pushing the carrier away from the seat opening the valve and increasing the flow of refrigerant The increased refrigerant flow causes increased leaving evaporator pressure which is transferred through the equalizer tube to the under side of the diaphragm This causes the pin carrier spring pressure to clos...

Page 17: ...en recharge 15 Remove the lockout tagout on the main power switch and restore power to the unit 16 Complete the charging procedure Refrigerant System Pressure Access Ports There are two access ports in the system on the suction tube near the compressor and on the discharge tube near the compressor These are brass fittings with black plastic caps The hose connection fittings are standard 1 4 SAE ma...

Page 18: ...refrigerant leak If the evacuation level raises to 1100 microns and stabilizes then the system has moisture in it and should be dehydrated as GTAC2 5 recommends If the system continues to rise above 1100 microns then the system has a leak and should be pressurized and leak tested using appropriate techniques as explained in GTAC2 5 After evacuating the system weigh in the specified amount of refri...

Page 19: ...55F 12 8C 45F 7 2C COOLING CHARGING CHART 17 5 Ton Circuit A C12227 Fig 22 Cooling Charging Chart 15 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 95 100 C 1 7 4 4 7 2 10 0 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 185 0 175 0 165 0 155 0 145 0 135 0 125 0 115 0 105 0 95 0 85 0 75 0 Suction Pressure psig Suction Temperature 50HE501046 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 2...

Page 20: ...C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 20 Ton Circuit A C12229 Fig 24 Cooling Charging Chart 17 5 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 95 100 C 1 7 4 4 7 2 10 0 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 185 0 175 0 165 0 155 0 145 0 135 0 125 0 115 0 105 0 95 0 85 0 75 0 Suction Pressure psig Suction Temperature 50HE501090 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F...

Page 21: ...C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 25 0 Ton Circuit A C12231 Fig 26 Cooling Charging Chart 20 Ton Circuit A F 45 50 55 60 65 70 75 80 85 90 95 100 C 7 2 10 5 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 Suction Pressure psig Suction Temperature 180 0 170 0 160 0 150 0 140 0 130 0 120 0 110 0 100 0 90 0 80 0 50HE501092 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55...

Page 22: ...45F 7 2C COOLING CHARGING CHART 28 Ton Circuit A C12233 Fig 28 Cooling Charging Chart 25 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 C 1 6 4 4 7 2 10 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 Suction Pressure psig Suction Temperature 180 0 170 0 160 0 150 0 140 0 130 0 120 0 110 0 100 0 90 0 80 0 50HE502406 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOL...

Page 23: ... POE oils can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants Avoid exposure of the oil to the atmosphere CAUTION NOTE Only factory trained service technicians should remove and replace compressor units Compressor Mounting Bolts Compressor mounting bolts should be periodically inspected for proper tightness Bolts should be tightened and have the torque set at 65 ...

Page 24: ... open refrigeration system 3 Sweat a new replacement filter drier into the refriger ant line 4 Re charge the refrigerant system Adjusting the Condenser Fan 1 Shut off the unit power supply Apply the appropriate lockout tagout procedures 2 Remove the condenser fan assembly grille motor and fan 3 Loosen the fan hub setscrews 4 Adjust the fan height as shown in Fig 30 5 Tighten the setscrews 6 Replac...

Page 25: ...e filter Unit undersized for load Decrease load or replace with larger unit Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Replace compressor Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Excessive Head Pressure Dirty air filter Replace a...

Page 26: ...Convenience Outlet Location Unit Powered Type A unit mounted transformer is factory installed to stepdown the main power supply voltage to the unit to 115 v at the duplex receptacle This option also includes a manual switch with fuse located in a utility box and mounted on a bracket behind the convenience outlet access is through the unit s control box access panel See Fig 32 C10324 Fig 32 Powered...

Page 27: ...nvenience outlet is covered with a blank cover plate The weatherproof cover kit is shipped in the unit s control box The kit includes the hinged cover backing plate and gasket ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death Before performing service or maintenance operations on the convenience outlets Lockout Tagout all electrical power to the un...

Page 28: ...hamber through a sampling tube that extends into the HVAC duct and is directed back into the ventilation system through a shorter exhaust tube The difference in air pressure between the two tubes pulls the sampled air through the sensing chamber When a sufficient amount of smoke is detected in the sensing chamber the sensor signals an alarm state and the controller automatically takes the appropri...

Page 29: ...cation and the tubing to the sampling tube be connected See installation steps FIOP Smoke Detector Wiring and Response All units The FIOP smoke detector is configured to automatically shut down all unit operations when a smoke condition is detected See Fig 39 Smoke Detector Wiring Highlight A The JMP 3 is factory cut transferring unit control to the smoke detector Highlight B The smoke detector NC...

Page 30: ...ENSOR Operating Position Shown SCREWS 2 SAMPLE TUBE CONTROLLER MODULE C12050 Fig 38 Return Air Sampling Tube Location in Unit with Economizer B D F E A C 48TM502525 D C12559 Fig 39 Typical Smoke Detector System Wiring ...

Page 31: ...ontroller s ability to initiate a dirty sensor test and indicate its results OPERATIONAL TEST NOTICE Failure to follow this NOTICE may result in an unnecessary evacuation of the facility Pressing the controller s test reset switch for longer than seven seconds will put the duct detector into the alarm state and activate all automatic alarm responses NOTICE Dirty Controller Test Procedure 1 Press t...

Page 32: ...Verify that the test reset station s Alarm LED turns on 3 Reset the sensor by turning the key switch to the RESET TEST position for two seconds 4 Verify that the test reset station s Alarm LED turns off Remote Test Reset Station Dirty Sensor Test The test reset station dirty sensor test checks the test reset station s ability to initiate a sensor dirty test and indicate the results It must be wire...

Page 33: ...her LEDs are off Alarm State The smoke detector enters the alarm state when the amount of smoke particulate in the sensor s sensing chamber exceeds the alarm threshold value See Table 7 Upon entering the alarm state The sensor s Alarm LED and the controller s Alarm LED turn on The contacts on the controller s two auxiliary relays switch positions The contacts on the controller s alarm initiation r...

Page 34: ...d in the detector cleaning section Sensor s Trouble LED is On 1 Check the sensor s Dirty LED If it is flashing the sensor is dirty and must be cleaned 2 Check the sensor s cover If it is loose or missing se cure the cover to the sensor housing 3 Replace sensor assembly Sensor s Power LED is Off 1 Check the controller s Power LED If it is off deter mine why the controller does not have power and ma...

Page 35: ...the static pressure in the unit duct system decreases and fan airflow rate increases Motor overload conditions typically develop when the unit is operated with an access panel removed with unfinished duct work in an economizer open mode or a leak develops in the duct system that allows a bypass back to unit return opening Table 8 Overcurrent Device Type Motor Size bhp Overload Device Reset 1 7 Int...

Page 36: ...lt in personal injury or death and or equipment damage Disconnect and lockout tagout electrical power before wiring the RTU OPEN controller WARNING Additional RTU OPEN Installation and Troubleshooting Additional installation wiring and troubleshooting information for the RTU OPEN Controller can be found in the following manuals Controls Start up Operation and Troubleshooting Instructions and RTU O...

Page 37: ... elevations above 2000 ft 610 m Gas line pressure entering the unit s main gas valve must be within specified ranges Adjust unit gas regulator valve as required or consult local gas utility See Table 9 Table 9 Natural Gas Supply Line Pressure Ranges UNIT MODEL UNIT SIZE MIN MAX 581J All 4 0 in wg 996 Pa 13 0 in wg 3240 Pa Manifold pressure is factory adjusted for NG fuel use Adjust as required to ...

Page 38: ...der these conditions can cause harm to the heat exchanger system Contact your fuel supplier if this condition is suspected Flue Gas Passageways To inspect the flue collector box and upper areas of the heat exchanger 1 Remove the combustion blower wheel and motor as sembly according to directions in the Combustion Air Blower section See Fig 49 2 Remove the flue cover to inspect the heat exchanger 3...

Page 39: ...cess door below the indoor fan panel At the beginning of each heating season inspect for deterioration or blockage due to corrosion or other causes Observe the main burner flames and adjust if necessary Flames should be conical in shape and enter the heat exchanger tubes with minor impingement on the sheet metal flame components Orifice Projection Refer to Fig 50 for maximum projection dimension f...

Page 40: ...moving from the rack 3 Use a soft brush to clean the burners and cross over port as required 4 Adjust the spark gap The gap should be 0 12 0 14 3 06 3 60 mm and spaced 0 18 4 60 mm from the end of the burner See Fig 54 5 If the factory orifice has been removed check that each orifice is tight at its threads into the manifold pipe and the orifice projection does not exceed the maximum valve See Fig...

Page 41: ...AP NOTE SPARK GAP MUST BE AT THE BOTTOM OF THE BURNER IGNITER AND SENSOR LOCATIONS BRACKET HEAT COVER NOT SHOWN FOR CLARIY 9 CELL 50HE400026 C12546 Fig 54 Typical MRT Spark Adjustment IGC Board IGC Board C10337 Fig 55 Unit Control Box IGC Location ...

Page 42: ...es will be reset The LED error code can be observed through the viewport During servicing refer to the label on the control box cover or Table 13 for an explanation of LED error code descriptions IMORTANT Refer to the Troubleshooting Tables 17 and 18 for additional information If lockout occurs unit may be reset by interrupting power supply to unit for at least 5 seconds Table 13 LED Error Code De...

Page 43: ...43 C10339 Fig 56 Typical IGC Wiring Diagram Red LED Status C08452 Fig 57 Integrated Gas Control IGC Board ...

Page 44: ...000 2743 341 140 800 341 198 400 341 256 000 10000 3048 352 132 000 351 186 000 351 240 000 11000 3353 372 123 200 372 173 600 372 224 000 12000 3658 372 114 400 372 161 200 372 208 000 13000 3962 392 105 600 392 148 800 392 192 000 14000 4267 392 96 800 392 136 400 392 176 000 Table 17 Altitude Compensation 17 30 Propane Gas PROPANE GAS NOMINAL HEAT INPUT ELEVATION 220k BTUH 310k BTUH 400k BTUH F...

Page 45: ...valve Water in gas line Drain water and install drip leg to trap water No power to furnace Check power supply fuses wiring and circuit breaker No 24V power supply to control circuit Check transformer Transformers with internal overcurrent protection require a cool down period before resetting Miswired or loose connections Check all wiring and wire nut connections Burned out heat anticipator in the...

Page 46: ...tes Check igniter and flame sen sor electrode spacing gaps etc Check flame sense and igniter wiring Check gas valve operation and gas supply 6 Flashes Induced Draft Motor Fault If heat off no gas heating If heat on gas valve Off and inducer On Inducer sense nor mal or heat call W Off Inducer sense On when heat call Off or inducer sense Off when heat call On Check wiring voltage and operation of IG...

Page 47: ...rs use direct drive damper actuators ACTUATOR WIRING HARNESS ECONOMIER IV CONTROLLER OUTSIDE AIR TEMPERATURE SENSOR LOW AMBIENT SENSOR C06021 ECONOMI ER2 PLUG BAROMETRIC RELIEF DAMPER OUTDOOR AIR HOOD HOOD SHIPPING BRACKET GEAR DRIVEN DAMPER C06022 Fig 59 EconoMi er IV Component Locations FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD SUPPLIED TIME CLOCK LEGEND DCV Demand Controlled Ventilation I...

Page 48: ...n Minimum position Closed On Off On Off Off Off Off Off Low Free Cooling LED On High On On On Off Modulating between min position and full open Modulating between closed and full open On Off Off Off Off Off Off Off Minimum position Closed Above set DCV LED On High Free Cooling LED Off Low On On On On Modulating between min position and DCV maximum Modulating between closed and DCV maximum On Off O...

Page 49: ...nt is 0 to 158 F 18 to 70 C The temperature sensor looks like an eyelet terminal with wires running to it The sensor is located in the crimp end and is sealed from moisture Outdoor Air Lockout Sensor The EconoMi er IV is equipped with an ambient temperature lockout switch located in the outdoor airstream which is used to lock out the compressors below a 42 F 6 C ambient temperature See Fig 59 SUPP...

Page 50: ...in wg FLOW IN CUBIC FEET PER MINUTE cfm C06031 Fig 66 Outdoor Air Damper Leakage Differential Dry Bulb Control For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor p n CRTEMPSN002A00 The accessory sensor must be mounted in the return airstream See Fig 67 Wiring is provided in the EconoMi er IV wiring harness ECON...

Page 51: ...o the return air enthalpy to determine EconoMi er IV use The controller selects the lower enthalpy air return or outdoor for cooling For example when the outdoor air has a lower enthalpy than the return air the EconoMi er IV opens to bring in outdoor air for free cooling Replace the standard outside air dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location Se...

Page 52: ...o set the occupied ventilation position The maximum demand ventilation position should be turned fully clockwise Adjust the minimum position potentiometer to allow the minimum amount of outdoor air as required by local codes to enter the building Make minimum position adjustments with at least 10 F temperature difference between the outdoor and return air temperatures To determine the minimum posi...

Page 53: ... minimum damper position potentiometer to the correct position The same equation can be used to determine the occupied or maximum ventilation rate to the building For example an output of 3 6 volts to the actuator provides a base ventilation rate of 5 and an output of 6 7 volts provides the maximum ventilation rate of 20 or base plus 15 cfm per person Use Fig 70 to determine the maximum setting of...

Page 54: ... 2 kilo ohm resistor across SR and The Free Cool LED should be lit 4 Remove 620 ohm resistor across SO and The Free Cool LED should turn off 5 Return EconoMi er IV settings and wiring to normal after completing troubleshooting Single Enthalpy To check single enthalpy 1 Make sure EconoMi er IV preparation procedure has been performed 2 Set the enthalpy potentiometer to A fully CCW The Free Cool LED...

Page 55: ...sult in personal injury or death WARNING 1 Follow recognized safety practices and wear approved Personal Protective Equipment PPE including safety glasses and gloves when checking or servicing refrigerant system 2 Do not use a torch to remove any component System contains oil and refrigerant under pressure To remove a component wear PPE and proceed as follows a Shut off all electrical power to uni...

Page 56: ...he field installed accessories for proper installation making note of which ones do or do not require configuration changes Inspect the RTU OPEN s Alarms for initial insight to any potential issues Refer to the following manual Controls Start up Operation and Troubleshooting Instructions Inspect the SAT sensor for relocation as intended during installation Inspect special wiring as directed below ...

Page 57: ...tudes Heating 1 Purge gas supply line of air by opening union ahead of the gas valve If gas odor is detected tighten union and wait 5 minutes before proceeding 2 Turn on electrical supply and manual gas valve 3 Set system switch selector at HEAT position and fan switch at AUTO or ON position Set heating temper ature lever above room temperature 4 The induced draft motor will start 5 After a call f...

Page 58: ...s RTU Open Installation and Start up Guide and RTU Open Integration Guide Have a copy of these manuals available at unit start up NOTICE FASTENER TORQUE VALUES Table 22 Torque Values Supply fan motor mounting 120 in lbs 13 6 Nm 12 in lbs 1 4Nm Supply fan motor adjustment plate 120 in lbs 13 6 Nm 12 in lbs 1 4Nm Motor pulley setscrew 72 in lbs 8 1 Nm 5 in lbs 0 6 Nm Fan pulley setscrew 72 in lbs 8 ...

Page 59: ...nthalpy Econo Bar Relief Standard Leak w CO2 W7212 or W7220 N Enthalpy Econo Cent Pwr Exhaust Standard Leak w CO2 W7212 or W7220 Q Motorized 2 Position Damper U Temp Econo Baro Relief Ultra Low Leak W7220 V Temp Econo Cent Pwr Exhaust Ultra Low Leak W7220 W Enthalpy Econo Baro Relief Ultra Low Leak W7220 X Enthalpy Econo Cent Pwr Exhaust Ultra Low Leak W7220 P Manual Outdoor Air Damper Indoor Fan ...

Page 60: ...0 motor frame size 56 56 56 56 Fan Qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fan Diameter in 15 x 15 15 x 15 15 x 15 15 x 15 Medium Static Motor Qty Belt Qty Driver Type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal Nameplate HP 3 7 3 7 5 25 5 25 Max BHP 3 7 3 7 4 9 4 9 RPM range 679 863 679 863 713 879 713 879 Max Blower Shaft RPM 1200 1200 1200 1200 motor frame size 56 56 56...

Page 61: ...5 x 15 15 x 15 Standard Static High Efficiency Motor Qty Belt Qty Driver Type 1 1 Belt 1 1 Belt n a n a Nominal Nameplate HP 5 0 5 0 n a n a Max BHP 6 5 6 9 7 0 8 3 6 5 6 9 7 0 8 3 n a n a RPM range 690 863 690 863 n a n a Max Blower Shaft RPM 1200 1200 n a n a motor frame size 184T 184T n a n a Fan Qty Type 2 Centrifugal 2 Centrifugal n a n a Fan Diameter in 15 x 15 15 x 15 n a n a Medium Static ...

Page 62: ...ype 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fan Diameter in 18 x 15 15 x 11 18 x 15 15 x 11 18 x 15 15 x 11 18 x 15 15 x 11 Medium Static Motor Qty Belt Qty Driver Type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal Nameplate HP 3 7 3 7 5 25 5 25 Max BHP 3 7 3 7 4 9 4 9 RPM range 614 780 614 780 713 879 713 879 Max Blower Shaft RPM 1100 1100 1100 1100 motor frame size 56 56 56 56 Fan ...

Page 63: ... 690 863 690 863 n a n a Max Blower Shaft RPM 1200 1200 n a n a motor frame size 184T 184T n a n a Fan Qty Type 2 Centrifugal 2 Centrifugal n a n a Fan Diameter in 18 x 15 15 x 11 18 x 15 15 x 11 n a n a Medium Static High Efficiency Motor Qty Belt Qty Driver Type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal Nameplate HP 5 0 5 0 5 0 5 0 Max BHP 208 230 460 575v 6 5 6 9 7 0 8 3 6 5 6 9 7 0 8 3 6 5 6...

Page 64: ... Condenser Coil Circuit B Coil type RTPF RTPF RTPF RTPF Coil Length in 70 64 80 95 Coil Height in 44 44 52 52 Rows FPI fins per inch 2 17 2 17 2 17 2 17 Total Face Area ft2 21 4 19 5 29 6 34 3 Condenser Fan Motor Qty Motor Drive Type 3 Direct 4 Direct 4 Direct 6 Direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 Filters RA Filter Size in 6 20 x 25 x 2 6 20 x 25 x 2...

Page 65: ...itch opens closes 195 115 195 115 195 115 195 115 Temperature rise range F 30 60 30 60 30 60 30 60 of stages of burners total 2 10 2 10 2 10 2 10 HIGH Connection size 3 4 in NPT 3 4 in NPT 3 4 in NPT 3 4 in NPT Rollout switch opens closes 195 115 195 115 195 115 195 115 Temperature rise range F 35 65 35 65 35 65 35 65 Liquid Propane Heat of stages of burners total 2 5 2 5 2 5 2 5 LOW Connection si...

Page 66: ...ive package with different motor pulley Table 25 581J D20 VERTICAL SUPPLY RETURN 17 5 TON CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 5250 547 1 10 626 1 45 700 1 84 766 2 24 828 2 67 5700 581 1 35 655 1 72 724 2 12 789 2 55 849 3 00 6150 615 1 63 684 2 02 750 2 44 812 2 90 871 3 37 6550 646 1 92 711 2 32 774 2 77 834 3 24 891 3 73 7000 ...

Page 67: ...tic Motor and Drive 941 1176 RPM Max BHP 10 5 11 9 11 9 11 0 Voltage 208 230 460 575V Outside operating range Italics requires high static drive package with different motor pulley All voltages Table 27 581J D28 VERTICAL SUPPLY RETURN 25 TON CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 7500 731 2 21 796 2 60 856 3 00 911 3 40 963 3 81 815...

Page 68: ...PLY RETURN 17 5 TON CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 5250 568 1 78 635 2 35 695 2 96 750 3 61 801 4 29 5700 604 2 17 668 2 78 726 3 43 779 4 11 829 4 82 6150 642 2 63 702 3 27 758 3 95 809 4 67 857 5 42 6550 676 3 09 733 3 76 786 4 48 836 5 23 883 6 01 7000 714 3 67 769 4 38 820 5 14 868 5 92 913 6 74 7450 753 4 33 805 5 08 85...

Page 69: ...e 208 230 460 575V Std Static Motor and Drive 690 863 RPM Max BHP 6 5 6 9 7 0 8 3 Voltage 208 230 460 575V High Static Motor and Drive 941 1100 RPM Max BHP 10 5 11 9 11 9 11 0 Voltage 208 230 460 575V UNDERSCORE Operation point covered by mid static drive Confirm Max BHP coverage based on unit voltage selected Outside operating range Table 31 581J D28 HORIZONTAL SUPPLY RETURN 25 TON CFM Available ...

Page 70: ...29 1106 1082 1059 1035 1012 988 965 941 NOTE Do not adjust pulley further than 5 turns open Factory settings Table 33 Pulley Adjustment Horizontal MODEL SIZE Motor Drive Combo Motor Pulley Turns Open 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 17 3 Phase Standard Static 680 663 647 630 614 597 580 564 547 531 514 Medium Static 780 763 747 730 714 697 680 664 647 631 614 High Static 912 895 879 862 846 829 812...

Page 71: ...2181 F 50HE502184 D D24 208 230 3 60 50HE500751 K 50HE500889 J 50HE502181 F 50HE502186 C 460 3 60 50HE500751 K 50HE500752 J 50HE502181 F 50HE502183 D 575 3 60 50HE500751 K 50HE500888 J 50HE502181 F 50HE502184 D D28 208 230 3 60 50HE500751 K 50HE500889 J 50HE502181 F 50HE502186 C 460 3 60 50HE500751 K 50HE500752 J 50HE502181 F 50HE502183 D 575 3 60 50HE500751 K 50HE500888 J 50HE502181 F 50HE502184 ...

Page 72: ...72 APPENDIX IV WIRING DIAGRAMS cont C160041 Fig 71 581J D17 D28 Control Diagram 208 230 3060 460 575 3 60 ...

Page 73: ...73 APPENDIX IV WIRING DIAGRAMS cont C160042 Fig 72 581J D17 D28 Power Diagram 208 230 3 60 ...

Page 74: ...74 APPENDIX IV WIRING DIAGRAMS cont C160043 Fig 73 581J D17 D28 Power Diagram 460 3 60 ...

Page 75: ...75 APPENDIX IV WIRING DIAGRAMS cont C160044 Fig 74 581J D17 D28 Power Diagram 575 3 60 ...

Page 76: ...76 APPENDIX IV WIRING DIAGRAMS cont C160045 Fig 75 581J D17 D28 Control Diagram with Perfect Humidity ...

Page 77: ...77 APPENDIX IV WIRING DIAGRAMS cont C160046 Fig 76 581J D17 D28 Power Diagram 208 230 3 60 with Perfect Humidity ...

Page 78: ...78 APPENDIX IV WIRING DIAGRAMS cont C160047 Fig 77 581J D17 D28 Power Diagram 460 3 60 with Perfect Humidity ...

Page 79: ...79 APPENDIX IV WIRING DIAGRAMS cont C160048 Fig 78 581J D17 D28 Power Diagram 575 3 60 with Perfect Humidity ...

Page 80: ...80 APPENDIX IV WIRING DIAGRAMS cont C160049 Fig 79 RTU OPEN Wiring Diagram ...

Page 81: ...81 APPENDIX IV WIRING DIAGRAMS cont C160050 Fig 80 RTU OPEN Wiring Diagram with Perfect Humidity ...

Page 82: ...R LOCATION C12259 Fig 82 Motormaster Sensor Location D28 Copyright 2016 Bryant Heating and Cooling Systems 7310 W Morris St Indianapolis IN 46231 Edition Date 05 16 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No SM581J 17 28 01 Replaces NEW ...

Page 83: ...SING ORIFICE AND SETSCREW TIGHTNESS CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES OR SHARP METAL EDGES VERIFY PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS III START UP REFER TO UNIT SERVICE MAINTENANCE MANUAL FOR INSTRUCTIONS ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 L3 L1 CIRCUIT 1 COMPRESSOR AMPS L1 L2 L2 CIRCUIT 2 COMPRESSOR AMPS L1 L2 L2 INDOOR ...

Page 84: ...nd Cooling Systems 7310 W Morris St Indianapolis IN 46231 Edition Date 05 16 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No SM581J 17 28 01 Replaces NEW ...

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