Controls, Start-Up, Operation, Service and ... - Climayoreo

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IDM — LEGEND Induced-Draft Motor IGC — Integrated Gas Unit Controller NOTE: Thermostat Fan Switch in the “AUTO” position. Fig. 17 — IGC Service Analysis Logic 102
Table 82 — Auto View of Run Status Display Table ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS VIEW AUTO VIEW OF RUN STATUS HVAC ascii string spelling out the hvac modes string OCC Occupied ? YES/NO OCCUPIED forcible MAT Mixed Air Temperature dF MAT EDT Evaporator Discharge Tmp dF EDT LAT Leaving Air Temperature dF LAT EC.C.P Economizer Control Point dF ECONCPNT ECN.P Economizer Act.Curr.Pos. 0-100 % ECONOPOS EC2.P Economzr2 Act.Curr.Pos. 0-100 % ECON2POS CL.C.P Cooling Control Point dF COOLCPNT C.CAP Current Running Capacity CAPTOTAL CL.ST Requested Cool Stage CL_STAGE HT.C.P Heating Control Point dF HEATCPNT HT.ST Requested Heat Stage HT_STAGE H.MAX Maximum Heat Stages HTMAXSTG Run StatusVIEWEDT — Displays the current evaporator discharge air temperature during Cooling modes. This value is read at the supply air thermistor location (or at cooling coil thermistor array if unit is equipped with hydronic heating coil). Run StatusVIEWLAT — Displays the current leavingair temperature during Vent and Hydronic Heating modes. This value is read at the supply air thermistor location. Run StatusVIEWEC.C.P — Displays the current economizer control point value (a target value for air temperature leaving the evaporator coil location). Run StatusVIEWECN.P — Displays the current actual economizer position (in percentage open). Run StatusVIEWEC2.P — Displays the current position of actuator no. 2 (in percentage open). Run StatusVIEWCL.C.P — Displays the current cooling control point (a target value for air temperature leaving the evaporator coil location). Run StatusVIEWC.CAP — Displays the current amount of unit cooling capacity (in percent of maximum). Compare to staging tables in Appendix C. Run StatusVIEWCL.ST — Displays the current number of requested cooling stages. Compare to staging tables in Appendix C and to C.CAP above. Run StatusVIEWHT.C.P — Displays the current heating control point, for use with staged gas control option only (a target value for air temperature leaving the supply duct). Run StatusVIEWHT.ST — Displays the current number of heating stages active (for staged gas control option only). Compare to following point. Run StatusVIEWH.MAX — Displays the maximum number of heat stages available for this model. ECONOMIZER RUN STATUS — The Economizer Run Status display table provides information about the economizer and can be used to troubleshoot economizer problems. See Table 83. The current position, commanded position, and whether the economizer is active can be displayed. All the disabling conditions for the economizer and outside air information is also displayed. COOLING INFORMATION — The Cooling Information run status display table provides information on the cooling operation and the Humidi-MiZer ® operation of the unit. See Table 84. Current Running Capacity (C.CAP) — This variable represents the amount of capacity currently running as a percent. Current Cool Stage (CUR.S) — This variable represents the cool stage currently running. Requested Cool Stage (REQ.S) — This variable represents the requested cool stage. Cooling relay timeguards in place may prevent the requested cool stage from matching the current cool stage. 103 Maximum Cool Stages (MAX.S) — This variable is the maximum number of cooling stages the control is configured for and capable of controlling. Active Demand Limit (DEM.L) — If demand limit is active, this variable will represent the amount of capacity that the control is currently limited to. Capacity Load Factor (SMZ) — This factor builds up or down over time (–100 to +100) and is used as the means of adding or subtracting a cooling stage during run time. It is a normalized representation of the relationship between “Sum” and “Z”. See the SUMZ Cooling Algorithm section on page 50. Next Stage EDT Decrease (ADD.R) — This variable represents (if adding a stage of cooling) how much the temperature should drop in degrees depending on the R.PCT calculation and how much additional capacity is to be added. ADD.R = R.PCT * (C.CAP – capacity after adding a cooling stage) For example: If R.PCT = 0.2 and the control would be adding 20% cooling capacity by taking the next step up, 0.2 times 20 = 4 F ADD.R Next Stage EDT Increase (SUB.R) — This variable represents (if subtracting a stage of cooling) how much the temperature should rise in degrees depending on the R.PCT calculation and how much capacity is to be subtracted. SUB.R = R.PCT * (C.CAP – capacity after subtracting a cooling stage) For Example: If R.PCT = 0.2 and the control would be subtracting 30% capacity by taking the next step down, 0.2 times –30 = –6 F SUB.R. Rise Per Percent Capacity (R.PCT) — This is a real time calculation that represents the amount of degrees of drop/rise across the evaporator coil versus percent of current running capacity. R.PCT = (MAT – EDT)/C.CAP Cap Deadband Subtracting (Y.MIN) — This is a control variable used for Low Temp Override (L.TMP) and Slow Change Override (SLOW). Y.MIN = –SUB.R*0.4375 Cap Deadband Adding (Y.PLU) — This is a control variable used for High Temp Override (H.TMP) and Slow Change Override (SLOW). Y.PLU = –ADD.R*0.4375 Cap Threshold Subtracting (Z.MIN) — This parameter is used in the calculation of SMZ and is calculated as follows: Z.MIN = ConfigurationCOOLZ.GN * (–10 + (4* (–SUB.R))) * 0.6 Cap Threshold Adding (Z.PLU) — This parameter is used in the calculation of SMZ and is calculated as follows: Z.PLU = ConfigurationCOOLZ.GN * (10 + (4* (–ADD.R))) * 0.6
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Controls, Start-Up, Operation, Serv
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WARNING What to do if you smell gas
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and the ENTER keys until the desire
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START-UP IMPORTANT: Do not attempt
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Table 4 — Fan Performance — 48P
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AIRFLOW (cfm) Table 10 — Fan Perf
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AIRFLOW (Cfm) LEGEND Table 18 — F
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AIRFLOW (cfm) LEGEND Bhp — Brake
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HIGH-EFFICIENCY MOTORS Nominal Maxi
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2. Under the Setpoints menu, set th
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would use Period 2 and set days Sat
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there is a loss of communication be
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and when ON, the control sets a cap
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System Mode Test — When the syste
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Table 31 — Unit Configuration ITE
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SETTING UP THE SYSTEM Machine Contr
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High SST Alert Delay Time (H.SST)
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Table 36 — Cool/Heat Set Point Of
Page 51 and 52: Table 38 — Run Status Cool Displa
Page 53 and 54: To use Demand Limiting, select the
Page 55 and 56: Size 050, 055, 060 Contactor OFM(s)
Page 57 and 58: Whenever the outdoor ambient temper
Page 59 and 60: Demand Level Low Heat Off Offset (L
Page 61 and 62: Limit Switch Low Temp (SW.L.T) —
Page 63 and 64: STAGE Table 49 — IGC LED Indicato
Page 65 and 66: Table 50 — Static Pressure Contro
Page 67 and 68: Table 53 — Dirty Filter Switch Po
Page 69 and 70: NOTE: If the user wishes to disable
Page 71 and 72: the economizer modulates when attem
Page 73 and 74: P = K * BP.P * (error) I = K * BP.I
Page 75 and 76: its smoke. Closing the economizer (
Page 77 and 78: Table 57 — Indoor Air Quality Con
Page 79 and 80: Table 58 — Humidity Configuration
Page 81 and 82: The default sensor is the return ai
Page 83 and 84: TEMPERATURE COMPENSATED START LOGIC
Page 85 and 86: Sensor Trim Configuration — The T
Page 87 and 88: SUPPLY FAN VFD CONFIGURATION — Th
Page 89 and 90: REMOTE SWITCH LOGIC CONFIGURATION (
Page 91 and 92: Alarms and Alarm History for for an
Page 93 and 94: Transducer Troubleshooting — The
Page 95 and 96: Table 75 — 10K Thermistor vs Resi
Page 97 and 98: TEMP RESISTANCE (F) (Ohms) -25 98,0
Page 99 and 100: PRESSURE (PSIG) Table 80 — Suctio
Page 101: Table 81 — Discharge Pressure Tra
Page 105 and 106: Table 84 — Cooling Information Di
Page 107 and 108: equalize compressor oil levels. If
Page 109 and 110: Table 91 — Alert and Alarm Codes
Page 111 and 112: T072 (Evaporator Discharge Reset Se
Page 113 and 114: This alarm will disable mechanical
Page 115 and 116: This is the reverse of the Pressuri
Page 117 and 118: 117 a48-8408 Fig. 19 — Typical Po
Page 119 and 120: OD ENTHALPY SWITCH LOW REMOTE OCCUP
Page 121 and 122: Fig. 23 — Typical Electric Heat U
Page 123 and 124: 123 Fig. 25 — Typical Gas Heat Se
Page 125 and 126: 125 Fig. 27 — Component Arrangeme
Page 127 and 128: ACCSY — Accessory ACC’Y — Acc
Page 129 and 130: Table 93 — Rooftop Control Board
Page 131 and 132: Table 96 — Control Expansion Modu
Page 133 and 134: LEGEND IAQ — Indoor Air Quality V
Page 135 and 136: the motor position to be configured
Page 137 and 138: TIME EWT LWT SETP Run Status Servic
Page 139 and 140: Fig. 37 — Door Latch Fig. 38 —
Page 141 and 142: SUPPLY FAN AND POWER EXHAUST MOTOR
Page 143 and 144: Routine cleaning of coil surfaces i
Page 145 and 146: Saturated Discharge Temperature (de
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Saturated Discharge Temperature (de
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Gas System Adjustment (48P Only) GA
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APPENDIX A — LOCAL DISPLAY TABLES
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APPENDIX B — CCN TABLES (cont) ST
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APPENDIX B — CCN TABLES (cont) ST
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APPENDIX B — CCN TABLES (cont) SE
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APPENDIX B — CCN TABLES (cont) MA
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APPENDIX B — CCN TABLES (cont) MA
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TESTACTC TESTCOOL TESTFANS TESTHEAT
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APPENDIX C — UNIT STAGING TABLES
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* 41 for Supply Fan Motor VFD, 42 f
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Fig. B — VFD Keypad START UP WITH
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Upload All Parameters — To upload
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To replace the main fan for frame s
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ALARM CODE ALARM NAME IN PANEL 2001
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APPENDIX E — MODE SELECTION PROCE
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CONTROLS SET POINT AND CONFIGURATIO
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Controls, Start-Up, Operation, Service and ... - Climayoreo

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