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Table of Contents

RT-SVX34F-EN

Economizer Operation Based on Reference
Enthalpy . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Economizer Operation Based on Compara-
tive Enthalpy . . . . . . . . . . . . . . . . . . . . . . . 90

Dehumidification (Modulating Hot Gas Re-
heat) Sequence of Operation

. . . . . . . . . . . 90

Gas Heat Sequence Of Operation

. . . . . . . 91

Constant Volume (CV) Unit Fan Operation 91

Variable Air Volume (VAV) Unit Fan Opera-
tion (2 Stage and Modulating Gas Heat) 91

Variable Air Volume (VAV) Unit Fan Opera-
tion (Modulating Gas Heat Only) . . . . . . 92

Ignition Control Module . . . . . . . . . . . . . . 92

High Temperature Limit Operation and Loca-
tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Electric Heat Sequence Of Operation

. . . . 92

Constant Volume (CV) . . . . . . . . . . . . . . . 92

Variable Air Volume (VAV) . . . . . . . . . . . 92

Variable Air Volume Applications (Single
Zone VAV) Sequence of Operation

. . . . . . 92

Occupied Cooling Operation . . . . . . . . . . 92

Occupied Heating Operation . . . . . . . . . . 93

Unoccupied Cooling and



Heating Operation . . . . . . . . . . . . . . . . . . 94

Dehumidification Operation . . . . . . . . . . 94

Failure and Overriding Conditions . . . . . 95

Low Pressure Control (LPC) Sequence of Op-
eration (ReliaTel Control)

. . . . . . . . . . . . . . 95

High Pressure Control and Temperature Dis-
charge Limit (ReliaTel Control)

. . . . . . . . . 95

Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Fan Belt Adjustment

. . . . . . . . . . . . . . . . . . 96

Monthly Maintenance

. . . . . . . . . . . . . . . . . 98

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Cooling Season . . . . . . . . . . . . . . . . . . . . 98

Heating Season . . . . . . . . . . . . . . . . . . . . 99

Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . 100

Fall Restraint

. . . . . . . . . . . . . . . . . . . . . . . . 100

Refrigeration System

. . . . . . . . . . . . . . . . . 101

Refrigerant Evacuation and Charging . 101

Charge Storage . . . . . . . . . . . . . . . . . . . . 101

Compressor Oil . . . . . . . . . . . . . . . . . . . . 101

Compressor Replacements

. . . . . . . . . . . 102

Electrical Phasing . . . . . . . . . . . . . . . . . . .102

Precision Suction Restrictor . . . . . . . . . .102

Diagnostics

. . . . . . . . . . . . . . . . . . . . . . . . . . . .104

System Status/Diagnostics

. . . . . . . . . . . .104

Terminal locations . . . . . . . . . . . . . . . . . .104

System Status / Diagnostics checkout proce-
dure (DC volt meter required) . . . . . . . . .104

Diagnostics (CV and SZ VAV Units Only) 105

Diagnostics (VAV only) . . . . . . . . . . . . . .105

Resetting Cooling and Ignition Lockouts 106

Zone Temperature Sensor (ZSM) Service In-
dicator . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

RTRM Zone Sensor Module (ZSM) Tests 107

Programmable & Digital Zone Sensor



Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

ReliaTel Refrigeration Module (RTRM) .108

Economizer Actuator (ECA)



Test Procedures . . . . . . . . . . . . . . . . . . . .108

ReliaTel Air Module (RTAM) Tests . . . . .109

ReliaTel Air Module (RTOM) Tests . . . . .110

Compressor—Blink Codes . . . . . . . . . . . .110

Troubleshooting

. . . . . . . . . . . . . . . . . . . . . .111

TR-200 VFD Programming Parameters

. .116

Unit Wiring Diagram Numbers

. . . . . . . . . . .118

Warranty and Liability Clause

. . . . . . . . . . . .122

COMMERCIAL EQUIPMENT - 20 TONS AND
LARGER AND RELATED ACCESSORIES

.122

Содержание Voyager CV

Страница 1: ...sult in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment Voyager Commercial 27 5 t...

Страница 2: ...Do not release refrigerant to the atmosphere If adding or removing refrigerant is required the service technician must comply with all federal state and local laws This booklet describes the proper i...

Страница 3: ...uble free operation A maintenance schedule is provided at the end of this manual Should equipment failure occur contact a qualified service organizationwithqualified experiencedHVACtechnicians to prop...

Страница 4: ...ments 36 Connecting the Gas Supply Line to the Fur nace Gas Train 36 Startup 38 Unit Control Modules 38 RTRM ReliaTel Refrigeration Module 38 ECA Economizer Actuator Optional 38 PEA Power Exhaust Actu...

Страница 5: ...aust Control Standard 51 Space Pressure Control Statitrac 51 Power Exhaust Control Tracking 52 Lead Lag Control 52 Coil Frost Protection 52 Dehumidification Frost Protection 52 VFD Programming Paramet...

Страница 6: ...d Temperature Dis charge Limit ReliaTel Control 95 Maintenance 96 Fan Belt Adjustment 96 Monthly Maintenance 98 Filters 98 Cooling Season 98 Heating Season 99 Coil Cleaning 100 Fall Restraint 100 Refr...

Страница 7: ...acking Power Exhaust Fan Available w Economizer only 5 50 Fresh Air Tracking Power Exhaust Fan Available w Economizer only 6 100 Power Exhaust w Statitrac Digit 12 Filter A 2 MERV 4 Std Eff Throwaway...

Страница 8: ...Model Number Notes 1 All voltages are across the line starting only 2 Option includes Liquid Discharge Suction Valves 3 Supply air fan drives A thru G are used with 27 35 ton units only and drives H...

Страница 9: ...0 25 Manual Damper C 0 100 Economizer Dry Bulb Control D 0 100 Economizer Reference Enthalpy Control E 0 100 Economizer Differential Enthalpy Control F C Option and Low Leak Fresh Air Damper G D Optio...

Страница 10: ...W units only and drives H through N are used with 33 3 and 41 7 ton 120 148 kW units only 4 Electric Heat kW ratings are based upon voltage ratings of 380 415 V Heaters A B C D are used with 22 9 29 2...

Страница 11: ...lockwise RH Right Hand DSP Direct Space Pressure control RHP Reheat Pumpout Solenoid DTS Discharge Air Sensor RHV Reheat Valve DWU Daytime Warm up RLP Reheat Low Pressure Cutout E A Exhaust Air RPM Re...

Страница 12: ...grating If concealed damage is discovered notify the carrier s terminal office immediately by phone and by mail Concealed damage must be reported within 15 days Request an immediate joint inspection...

Страница 13: ...ated and installed by the installing contractor before the unit is set into place Trane curbs include flanges around the openings to accommodate duct attachment Ductwork installation recommendations a...

Страница 14: ...r view showing duct openings for horizontal supply and return 60 Hz 27 35 50 Hz 23 29 Tons TCH TEH YCH low heat 1 1 4 32 3 1 4 81 Figure 3 60 Hz 27 35 50 Hz 23 29 Tons TC TE YC low heat NOTES 1 SEE DE...

Страница 15: ...s access limited For combination of horizontal and downflow openings digit 3 F or R see Figure 4 p 15 for appropriate downflow upflow dimensions and Figure 5 p 15 for appropriate horizontal dimensions...

Страница 16: ...40 3 16 6 15 16 PVC PIPE FEMALE 1 25 4MM NPT GAS INLET NOTES 1 SEE ROOFCURB DRAWING FOR DETAILS ON FIELD DUCT FITUP AND CONNECTIONS 2 SEE DETAIL HOOD DRAWING FOR HORIZONTAL DOWNFLOW UNITS FOR ADDITION...

Страница 17: ...Tons TH TH YH low and high heat 1 1 4 32 3 1 4 81 Figure 9 60 Hz 40 50 50 Hz 33 42 Tons TC TE YC low and high heat 7 9 16 232 3 8 5902 3mm 232 3 4 5911 8mm 90 5 8 49 9 16 1258 8mm 93 3 8 2371 7mm 5 5...

Страница 18: ...Unit Dimensions and Weights 18 RT SVX34F EN Figure 10 Fresh air and power exhaust dimensions for TC TE and YC units Figure 11 Location of Ship With items for TC TE and YC units...

Страница 19: ...tal downflow and mixed airflow configurations Recommended Clearances Single Unit Economizer Exhaust End Condenser Coil a Orientation End Side a Condenser coil is located at the end and side of the uni...

Страница 20: ...5 966 438 990 449 768 348 875 397 879 399 Notes 1 Point Loading is identified with corner A being the corner with the compressors As you move clockwise around the unit as viewed from the top mid point...

Страница 21: ...an section The kit contains the following items an O A static pressure sensor a sensor mounting bracket 50 of 3 16 O D pneumatic tubing mounting hardware 2 Using two 10 32 x 1 3 4 screws provided inst...

Страница 22: ...ucer assembly Static Reference Tubing Connects Here O A Sensor Space Pressure Sensing Tube Connects Here Space Pressure Calibration Solenoid Space Pressure Transducer LO HI C NO NC Sensing Tube to Out...

Страница 23: ...0 p 26 list the electrical service sizing data The electrical service must be protected from over current and short circuit conditions in accordance with NEC requirements Protection devices must be si...

Страница 24: ...local and national codes Through the Base Electrical Optional Accessory Liquid tight conduit couplings are secured to the base of the unit for both power and control wiring Liquid tight conduit must...

Страница 25: ...0 1 2 1 0 4 1 230 60 3 207 253 1 13 1 15 50 5 56 0 315 351 7 5 10 0 15 0 18 8 25 2 35 4 3 1 1 7 0 1 2 1 0 4 1 460 60 3 414 506 1 13 1 15 23 0 27 5 158 197 7 5 10 0 15 0 9 4 12 6 17 7 3 1 1 3 5 1 2 1...

Страница 26: ...Ea LRA Ea HP kW FLA No HP kW FLA Ea 50 100 4 HP kW FLA Ea No TC TE YC 275 380 415 50 3 1 10 1 11 21 0 23 0 147 158 7 5 5 6 13 6 14 1 3 75 56 4 4 1 2 0 75 0 56 1 7 10 6 8 16 0 15 5 TC TE YC 305 380 415...

Страница 27: ...do not operate during the heating cycle Units with less than 50 KW Heaters MCA 1 25 x Load 1 Load 2 Load 4 1 25 x Load 3 Units with 50 KW or Larger Heaters MCA 1 25 x Load 1 Load 2 Load 4 Load 3 The...

Страница 28: ...lling any connecting wiring refer to Table 13 p 28 for conductor sizing guidelines and Use copper conductors unless otherwise specified Ensure that the AC control voltage wiring between the controls a...

Страница 29: ...uipped with the Trane Communication Interface TCI option which utilizes a serial communication link Must be 18 AWG shielded twisted pair cable Belden 8760 or equivalent Must not exceed 5 000 feet maxi...

Страница 30: ...nstallation Electrical 30 RT SVX34F EN Figure 19 Typical field wiring requirements for CV and SZ VAV control options LTB6 Space Humidity Sensor Space Humidistat RTRM J7 Thermostat Inputs N A for SZ VA...

Страница 31: ...RTRM J6 4 If the unit does not have a Mode Off Auto input from another source the following default applies Short from J6 2 to J6 4 AUTO mode Open from J6 2 to J6 4 OFF mode LTB6 Space Humidity Senso...

Страница 32: ...features four system switch settings Heat Cool Auto and Off and two fan settings On and Auto with four system status LED s It is a manual or auto changeover control with dual setpoint capability It ca...

Страница 33: ...atures remote zone sensing and timed override with override cancellation It is used with a Trane Integrated ComfortTM building management system Remote Zone Sensor BAYSENS074 This electronic sensor fe...

Страница 34: ...n the NSB Theliquidcrystaldisplay LCD displayszonetemperature temperature setpoints week day time and operational mode symbols The options menu is used to enable or disable these applicable functions...

Страница 35: ...t use twisted shielded cable Figure 32 Space temperature averaging Table 16 Temperature vs resistance temperature vs resistance coefficient is negative Degrees F Nominal Resistance Degrees F Nominal R...

Страница 36: ...gas valve damage and the unsafe operating conditions that will result Note Do not rely on gas train shutoff valves to isolate the unit while conducting gas pressure leak test These valves are not des...

Страница 37: ...more than one unit is served by the same main gas supply consider the total gas input cubic feet hr and the total length when determining the appropriate gas pipe size 2 Obtain the Specific Gravity a...

Страница 38: ...d by 24 VAC Refer to Mechanical Cooling with an Economizer p 49 for the proper Potentiometer settings for dry bulb Enthalpy control PEA Power Exhaust Actuator Optional If the unit is ordered with trac...

Страница 39: ...midification Module provides a pulsed signal output to control the Cooling and Reheat Modulating Valves The RTDM will also monitor the Entering Evaporator Temperature as well as protect against a low...

Страница 40: ...age of mechanical cooling is activated While economizing if an additional stage of cooling is activated from Y2 the 1st stage of mechanical cooling is activated If the economizer is disabled due to am...

Страница 41: ...mizer Operation with CV Controls The control point for the economizer is designed to control at least 1 5 F below the cooling setpoint or 1 5 F above the heating setpoint whichever produces the highes...

Страница 42: ...The system will remain locked out until a reset is initiated either manually or through ICS or a mode transition from OFF to a non OFF mode Supply Air Tempering CV and SZ VAV CV Units with Staged Heat...

Страница 43: ...nto Tempering the unit will transition to normal heating control and will control the supply air temperature between the minimum and maximum supply air setpoints If the Zone Temperature rises above th...

Страница 44: ...ial handling of the OA Damper Minimum Position control in order to compensate for the non linearity of airflow associated with the variable supply fan speed and damper combinations Demand Controlled V...

Страница 45: ...command is set to a point that would be higher than the calculated linear line between the Design Minimum Position setpoints at Minimum and Full fan speed command the minimum position will be limited...

Страница 46: ...etpoint being set above or below the Bldg Design Min Position at Full Fan Speed Command Note that an Exhaust Enable Setpoint of 0 will result in the same effect on Exhaust Fan control as on non Single...

Страница 47: ...6 5 minutes when switching from occupied cooling mode to a heating mode Zone Temperature Control without a Night Setback Panel or ICS Unoccupied Cooling When a field supplied occupied unoccupied switc...

Страница 48: ...elected If the outdoor air temperature falls 20 F below the reset temperature setpoint the amount of reset applied to the supply air temperature will equal the maximum amount of reset selected The fou...

Страница 49: ...tside air conditions are suitable The method used to determine economizer effectiveness depending on the available data is described below in descending order of complexity The most sophisticated meth...

Страница 50: ...raditional VAV and the VAV boxes to fully open When Purge is selected activating Ventilation Override will cause the supply fan to run the economizer to open to 100 the exhaust fan to run or the VFD t...

Страница 51: ...xhaust Control Standard The power exhaust fan is started whenever the position of the economizer dampers meets or exceed the power exhaust setpoint when the supply fan is on The setpoint potentiometer...

Страница 52: ...e staged off initially and then if the EET remains below 35 F for an additional 10 minutes the second circuit will be staged off For single circuit units one compressor will be staged off initially an...

Страница 53: ...0 CPR 1 Fan 2 20 Fan 3 4 60 CPR 2 3 Fan 2 10 Fan 3 4 55 CPR 1 2 3 Fan 2 30 Fan 3 4 50 Notes 1 The Compressor s listed under each step are the operating compressors On 27 5 to 35 Ton units with Lead La...

Страница 54: ...unit nameplate If any of the readings do not fall within the proper tolerances notify the power company to correct this situation before operating the unit Voltage Imbalance Excessive voltage imbalanc...

Страница 55: ...at LTB1 Test 1 and LTB1 Test 2 1 Step Test Mode This method initiates the different components of the unit one at a time by temporarily shorting across the two test terminals for two to three seconds...

Страница 56: ...in active Cooling Mode 4 For units with Statitrac installed the Exhaust Damper will track the Economizer position during Service Test Mode and the Exhaust Fan will be energized once the Economizer ris...

Страница 57: ...st mode states for traditional VAV units with modulating dehumidification and modulating heat TEST STEP MODE FAN VFD COMMAND1 ECON4 COMP 1 COMP 2 HEAT OUTPUT PUMPOUT3 COOL VALVE REHEAT VALVE VAV BOX5...

Страница 58: ...nute VAV Box ON timer has expired Table 36 Test mode states for SZ VAV units with modulating dehumidification and modulating heat TEST STEP MODE FAN VFD COMMAND1 ECON4 COMP 1 COMP 2 HEAT OUTPUT PUMPOU...

Страница 59: ...otor nameplate VFD s With the O A dampers fully closed read the amperage displayed on the VFD screen and compare it to the motor nameplate Note On VAV applications the VFD will be under control of the...

Страница 60: ...665 8 30 696 9 04 724 9 69 13500 445 4 39 479 4 92 526 5 73 569 6 53 604 7 26 638 7 98 673 8 82 705 9 68 733 10 38 14000 459 4 85 490 5 39 535 6 19 579 7 04 614 7 81 647 8 56 680 9 35 713 10 26 742 11...

Страница 61: ...486 9 72 518 10 83 547 11 69 573 12 66 600 13 69 625 14 70 648 15 64 675 16 71 CFM Std Air Total Static Pressure in wg 1 2 50 2 75 3 00 3 25 3 50 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 12000 640 8 45...

Страница 62: ...H P 800 RPM 700 RPM 600 RPM 500 RPM 400 RPM Volumetric Airflow Rate CFM Static Presure InWC Figure 48 Supply fan performance curves 40 and 50 ton 60Hz 0 2000 4000 6000 8000 10000 12000 14000 16000 180...

Страница 63: ...6 80 705 7 59 11235 383 2 66 434 3 25 483 3 90 525 4 50 566 5 19 603 5 85 634 6 41 671 7 13 707 7 90 11650 394 2 93 441 3 51 492 4 21 532 4 83 572 5 51 610 6 25 642 6 84 675 7 50 710 8 26 12065 405 3...

Страница 64: ...8 5 07 705 5 66 5302 383 1 98 434 2 42 483 2 91 525 3 36 566 3 87 603 4 37 634 4 78 671 5 32 707 5 89 5498 394 2 19 441 2 62 492 3 14 532 3 60 572 4 11 610 4 66 642 5 10 675 5 59 710 6 16 5694 405 2 4...

Страница 65: ...9 463 6 93 495 7 78 525 8 61 554 9 43 586 10 36 613 11 26 637 12 13 CFM Static Pressure in wg 2 50 2 75 3 00 3 25 3 50 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 9996 636 6 90 665 7 63 691 8 35 717 9 10...

Страница 66: ...H P 3 H P 800RPM 700RPM 600RPM 500RPM 400RPM Volumetric Airflow Rate CFM Static Presure InWC Figure 50 Supply fan performance 33 3 and 41 7 Ton IP 50Hz 0 2000 4000 6000 8000 10000 12000 14000 16000 18...

Страница 67: ...9 4 61 463 5 17 495 5 80 525 6 42 554 7 03 586 7 73 613 8 40 637 9 05 L s Static Pressure Pascals 620 9 683 0 745 1 807 2 869 3 RPM kW RPM kW RPM kW RPM kW RPM kW 4717 636 5 14 665 5 69 691 6 22 717 6...

Страница 68: ...0 095 11000 0 061 12000 0 073 14000 0 103 11500 0 067 12500 0 08 14500 0 111 12000 0 073 13000 0 087 12500 0 08 40 12000 0 072 50 15000 0 098 12500 0 075 15500 0 104 13000 0 079 16000 0 11 13500 0 08...

Страница 69: ...0 0 01 0 03 0 08 0 13 0 24 0 36 0 1 0 19 0 17 0 34 0 09 13000 0 01 0 04 0 1 0 15 0 28 0 41 0 12 0 23 0 2 0 36 0 11 14000 0 02 0 05 0 11 0 18 0 31 0 46 0 13 0 25 0 22 0 39 0 12 15000 0 02 0 05 0 13 0 2...

Страница 70: ...09 0 08 0 08 0 18 0 28 0 09 0 15 0 13 0 23 0 05 9580 0 14 0 11 0 09 0 1 0 21 0 32 0 1 0 17 0 16 0 26 0 07 11200 0 19 0 15 0 13 0 14 0 28 0 41 0 12 0 21 0 19 0 32 0 08 12100 0 22 0 17 0 15 0 16 0 31 0...

Страница 71: ...36 55 22 36 34 57 15 5120 44 34 29 32 41 62 26 43 41 67 17 103 29 4130 29 22 19 21 44 68 22 36 31 55 13 4520 34 27 23 25 51 78 24 41 38 62 16 4920 41 32 27 29 66 97 29 50 46 77 19 5310 47 37 32 34 75...

Страница 72: ...in the same position such that the damper blade connecting member contacts the stops at the same time 3 The modulating power exhaust actuator tracks the position of the economizer damper actuator suc...

Страница 73: ...35 9708 16069 0 1 4575 7410 9151 14820 0 2 4262 6450 8552 13496 0 3 4011 6027 8021 12054 0 4 3718 5526 7436 11051 0 5 3467 5186 6933 10373 Table 51 Power exhaust fan performance 22 9 29 2 Ton 50 Hz Po...

Страница 74: ...uct static pressure and the return air damper pressure drop together to obtain the Total Return Static Pressure Apply this calculation and the calculated CFM to the appropriate Table 53 p 74 through T...

Страница 75: ...A damper static pressure setup System Design Return Air Duct Static Return Air Damper Static Inches of Water CFM 0 20 0 40 0 60 0 80 1 00 1 20 1 40 Drive Rod Position 12000 A A C D E E E 12500 A A C...

Страница 76: ...a scroll compressor is rotating backwards it will not pump and a loud rattling sound can be observed If allowed to run backward for even a very short period of time internal compressor damage may occu...

Страница 77: ...remove relocate or over torque these weights The torque specification for the attaching bolts is 6 ft lbs 1 0 ft lb The location of the line weights is shown in Figure 57 p 77 and Figure 58 p 77 Compr...

Страница 78: ...55 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient Table 59 30 Ton operating pressure 60 Hz TC TE YC 360 FULL LOAD 200 250 300 350 400 45...

Страница 79: ...ent 85 FOD Ambient 75 F OD Ambient 65 F OD Ambient 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient Table 61 40 Ton dual circuit operating pressure 60 Hz TC TE YC 480 Circuit 1 Full Load 200 250 300...

Страница 80: ...55 F OD Ambient 85 F OD Ambient 75 FOD Ambient 65 F OD Ambient 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient Table 63 50 Ton dual circuit operating pressures 60 Hz TC TE YC 600 Circuit 1 FULL LOAD...

Страница 81: ...ID WB DB 55 F OD Ambient 85 F OD Ambient 75 FOD Ambient 65 F ODAmbient 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient Table 65 22 9 Ton operating pressure 50 Hz TC TE YC 275 FULL LOAD 200 250 300...

Страница 82: ...B 55 F OD Ambient 85 FOD Ambient 75 F ODAmbient 65 F ODAmbient 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient Table 67 29 2 Ton operating pressures 50 Hz TC TE YC 350 FULL LOAD 200 250 300 350 400...

Страница 83: ...46 1 F OD Ambient 40 6 FOD Ambient 35 0 F OD Ambient 30 0 22 2 C ID DB WB 26 7 19 4 C ID DB WB 23 3 16 7 C ID DB WB Table 69 33 3 Ton dual circuit operating pressure 50 Hz TC TE YC 400 Circuit 2 Full...

Страница 84: ...F OD Ambient 40 6 F OD Ambient 35 0 F OD Ambient 30 0 22 2 C ID DB WB 26 7 19 4 C ID DB WB 23 3 16 7 C ID DB WB Table 71 41 7 Ton dual circuit operating pressures 50 Hz TC TE YC 500 Circuit 2 Full Loa...

Страница 85: ...harging practices The outdoor ambient temperature must be between 65 and 105 F and the relative humidity of the air entering the evaporator must be above 40 percent When the temperatures are outside o...

Страница 86: ...n the main power disconnect switch or the unit mounted disconnect switch to shut the unit Off and to reset the RTRM This concludes the setup and testing for the major components and controls within th...

Страница 87: ...ol panel that are set at the factory which will allow the unit to operate and maintain system control For specific job specifications Verify that the control input potentiometers are set according to...

Страница 88: ...page 24 Verify that the electrical power supply characteristics comply with the unit nameplate specifications Inspect all control panel components tighten any loose connections Connect properly sized...

Страница 89: ...for the proper potentiometer setting for each temperature selection The economizer option allows cooling utilizing outdoor air when the temperature is below the specified dry bulb setpoint 73 2 F fact...

Страница 90: ...lpy the dampers will modulate to maintain a 45 to 55 F supply air temperature constant volume or variable air volume applications The ECA modulates the economizer dampers from minimum position to full...

Страница 91: ...e hot surface igniter IP for 45 seconds After a preheat period the gas valve GV is energized for approximately 7 seconds If the burner lights the gas valve remains energized If the burner fails to ign...

Страница 92: ...t Volume CV When heat is required and the Fan selection switch is in the AUTO position for constant volume applications the RTRM energizes the Supply Fan approximately one second before energizing the...

Страница 93: ...his delay is enforced to ensure that the supply fan is energized and ramping up to operating speed prior to energizing compressors As the zone cooling demand continues to increase if additional capaci...

Страница 94: ...tive setpoint is satisfied After startup the unit will monitor the unit conditions to determine when to enter and leave dehumidification mode As long as the unit is not actively heating or actively co...

Страница 95: ...Purge Pressurize etc the Supply Fan will be energized and the Fan Speed output will ramp to 100 3 Zone Temperature Sensor Failure If the Active Zone Temperature input goes out of range the unit will d...

Страница 96: ...the gauge 4 Place the large end of the gauge on the belt at the center ofthe belt span Depress the gauge plunger until the large O ring is even with the of the second belt or even with a straightedge...

Страница 97: ...30 10 hp f 650 BK190 X 1 7 16 BK190 1 7 16 BK75H BK75H H 1 3 8 H 1 3 8 BX108 Notched 700 BK160 X 1 7 16 BK160 1 7 16 BK67H BK67H H 1 3 8 H 1 3 8 BX103 Notched 750 BK160 X 1 7 16 BK160 1 7 16 BK72H BK...

Страница 98: ...sket around the control panel doors These gaskets must fit correctly and be in good condition to prevent water leakage Verify that all terminal connections are tight Remove any corrosion present on th...

Страница 99: ...and terminal connections as well as damaged wire insulation Make any necessary repairs YC units only Check the heat exchanger s for any corrosion cracks or holes Check the combustion air blower for di...

Страница 100: ...h pressure sprayer is used a The minimum nozzle spray angle is 15 degrees b Do not allow sprayer pressure to exceed 600 psi c Spray the solution perpendicular at 90 degrees to the coil face d For evap...

Страница 101: ...to the round tube plate fin evaporator coil pumping refrigerant into the condenser coil to service the refrigerant system is no longer an option Compressor Oil If a motor burn out is suspected use an...

Страница 102: ...f allowed to run backwards for an extended period of time the motor windings can overheat and cause the motor winding thermostats to open This will cause a compressor trip diagnostic and stop the comp...

Страница 103: ...Press Psig Liquid Press Psig Super heat F Sub cool F Compr Oil Level Suct Press Psig Disch Press Psig Liquid Press Psig Super heat F Sub cool F ok low ok low ok low ok low ok low ok low ok low ok low...

Страница 104: ...normal operating conditions appear in the test mode exit the test mode by turning the power Off at the main power disconnect switch 8 Refer to the individual component test procedures if other microel...

Страница 105: ...l ZSM to terminals RTRM J6 1 through J6 5 Note All units configured for SZ VAV will blink the Cool indicator if there is a Zone Temp input failure because a valid Zone Temperature reading is required...

Страница 106: ...ification 3 Entering Evaporator Temperature Failure on units with modulating dehumidification 4 RTDM Communication Failure on units with modulating dehumidification Resetting Cooling and Ignition Lock...

Страница 107: ...have at least 100 times more resistance in reverse direction as compared with the forward direction If high resistance in both directions LED is open If low in both directions LED is shorted Method 3...

Страница 108: ...of range 3 Flashes RA Humidity Sensor out of range 4 Flashes RA Temp Sensor out of range 6 Flashes OA Humidity Sensor out of range 7 Flashes OA Temp Sensor out of range 8 Flashes MA Temp Sensor out of...

Страница 109: ...ansducer SPT Input 1 With main power to the unit turned Off disconnect all of the tubing to the Static Pressure Transducer 2 With the system MODE Off apply power to the unit and measure the voltage be...

Страница 110: ...est Mode procedure described in the Startup section step the unit to the fourth test Step 4 Verify that the fan starts and the speed increases If the fan does not start check for Fault Conditions on t...

Страница 111: ...e ZSM out of calibration 2 Check and calibrate the thermometer D CPR1 will not operate ODM s will operate 1 Compressor failure 1 Test compressor mechanically and electrically Replace if necessary 2 Wi...

Страница 112: ...tive 4 Check the RTRM fan output Locate P2 1 on the RTRM Measure voltage to ground If 24 VAC is not present on a call for fan replace the RTRM 5 Supply Fan Proving FFS switch has opened 5 Check FFS an...

Страница 113: ...ers Check fan wheels motors and belts 3 Outdoor Air Sensor OAS has Failed 3 Check OAS at connector P8 by disconnecting P8 from J8 on the RTRM Check resistance between P8 1 and P8 2 refer to the Resist...

Страница 114: ...re Setpoint is too high low 2 Verify Building Pressure with maximum building exhaust enabled Adjust Space Pressure Setpoint accordingly Table 83 Troubleshooting SYMPTOM PROBABLE CAUSE RECOMMENDED ACTI...

Страница 115: ...ure Control Compressor CPR1 will not operate Open 650 psig Close 550 psig Cool Failure Output at RTRM J6 8 to J6 6 COOL LED blinks at ZSM HPC2 High Pressure Control Compressor CPR2 or CPR3 will not op...

Страница 116: ...rameter setting use the buttons Highlighted area indicates digit selected for change i Use and buttons to adjust the digit j Press Cancel button to disregard change or press OK to accept change and en...

Страница 117: ...ote Some of the parameters listed in the tables are motor specific Due to various motors and efficiencies available use only the values stamped on the specific motor nameplate Do not use the Unit name...

Страница 118: ...0618 All Units with Statitrac Control Box Connection Print 208 230 2313 0633 27 5 35 ton 36KW 54KW Electric Heat 2313 0635 40 ton 54KW Electric Heat 2313 0637 50 ton 54KW Electric Heat 2313 0688 27 5...

Страница 119: ...4KW 72KW 2313 0675 50 ton 90KW 108KW Single Zone Variable Air Volume Control Modules 208 575 2313 0617 All Units without Statitrac 2313 0619 All Units with Statitrac Control Box Connection Print 208 2...

Страница 120: ...ut Statitrac 2313 0618 All Units with Statitrac Control Box Connection Print 208 230 2313 0715 27 5 35 ton 2 Stage Gas Heat 2313 0716 40 ton 2 Stage Gas Heat 2313 0717 50 ton 2 Stage Gas Heat 2313 072...

Страница 121: ...5 ton Modulating Gas Heat 2313 0713 40 ton Modulating Gas Heat 2313 0714 50 ton Modulating Gas Heat Single Zone Variable Air Volume Control Modules 208 575 2313 0617 All Units without Statitrac 2313 0...

Страница 122: ...wed to Buyer s city or port of export for shipment outside the conterminous United States replacement equipment or at the option of the Company parts therefore for all Company products not conforming...

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