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

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If all of the above conditions are met, the following logic is used: If OAT IQ.L.O and OAT OCSP and economizer is available then purge will be enabled and the economizer will be commanded to 100%. Else, if OAT < IQ.L.O then the economizer will be positioned to the IAQ Purge LO Temp Min Pos (Configuration IAQIAQ.PIQ.P.L) If neither of the above are true then the dampers will be positioned to the IAQ Purge HI Temp Min Pos (Configuration IAQIAQ.PIQ.P.H) If this mode is enabled the indoor fan and heat interlock relay (VAV) will be energized. IAQ Purge (ConfigurationIAQIAQ.PIQ.PG) — This is used to enable IAQ pre-occupancy purge. IAQ Purge Duration (ConfigurationIAQIAQ.P IQ.P.T) — This is the maximum amount of time that a purge can occur. IAQ Purge Lo Temp Min Pos (ConfigurationIAQ IAQ.PIQ.P.L) — This is used to configure a low limit for damper position to be used during the purge mode. IAQ Purge Hi Temp Min Pos (ConfigurationIAQ IAQ.PIQ.P.H) — This is used to configure a maximum position for the dampers to be used during the purge cycle. IAQ Purge OAT Lockout Temp (ConfigurationIAQ IAQ.PIQ.L.O) — Nighttime lockout temperature below which the purge cycle will be disabled. OPTIONAL AIRFLOW STATION — The ComfortLink controls are capable of working with a factory-installed optional airflow station that measures the amount of outdoor air entering the economizer. This flow station is intended to measure ventilation airflows and has a limitation as to the maximum flow rate it can measure. The limits are 18,000 cfm for sizes 030-050 and 31,000 cfm for sizes 055-100. All configurations for the outdoor airflow station can be found in the ConfigurationECONCFM.C, sub-menu. For this algorithm to function, the Outdoor Air Cfm Sensor Configuration (OCF.S.) must be enabled. There are three set point configurations: O.C.MN — Econ OACFM DCV Min Flow O.C.MX — Econ OACFM DCV Max Flow O.C.DB — Econ OACFM MinPos Deadbd When the outdoor air cfm sensor is enabled, the Economizer Min.Position (ConfigurationIAQDCV.CEC.MN) and the IAQ Demand Vent Min.Pos (ConfigurationIAQ DCV.CIAQ.M) will no longer be used. During vent periods, the control will modulate the damper to maintain the outdoor air intake quantity between O.C.MX and O.C.MN. The indoor air quality algorithm will vary the cfm between these two values depending on ConfigurationIAQAQ.SPDAQ.L and the ConfigurationIAQAQ.SPDAQ.H set points and upon the relationship between the IAQ and the outdoor air quality (OAQ). The economizer’s OA CFM Minimum Position Deadband (O.C.DB) is the deadband range around the outdoor cfm control point at where the damper control will stop, indicating the control point has been reached. See the Economizer section for more information. Humidification — The P Series ComfortLink controls can control a field-supplied and installed humidifier device. The ComfortLink controls provide two types of humidification control: A discrete stage control (via a relay contact) and a proportional control type (communicating to a LEN actuator). The 78 discrete stage control is used to control a single-stage humidifier, (typically a spray pump). The proportional control type is typically used to control a proportional steam valve serving a steam grid humidifier. The ComfortLink controls must be equipped with a controls expansion module and an accessory space or return air relative humidity sensor. If a humidifier using a proportional steam valve is selected, the Carrier actuator (Carrier Part No. HF23BJ050) must be adapted to the humidifier manufacturer’s steam valve. Contact Belimo Aircontrols for information on actuator linkage adapter packages required to mount the actuator on the specific brand and type of steam valve mounted by the humidifier manufacturer. The actuator address must be programmed into the ComfortLink unit’s humidifier actuator serial number variables. SETTING UP THE SYSTEM — These humidity configuration are located in the local displays under Configuration HUMD. See Table 58. Related points are shown in Table 59. Humidifier Control Configuration (HM.CF) — The humidifier control can be set to the following configurations: • HM.CF = 0 — No humidity control. • HM.CF = 1 — Discrete control based on space relative humidity. • HM.CF = 2 — Discrete control based on return air relative humidity. • HM.CF = 3 — Analog control based on space relative humidity. • HM.CF = 4 — Analog control based on return air relative humidity. Humidity Control Set Point (HM.SP) — The humidity control set point has a range of 0 to 100%. Humidifier PID Run Rate (HM.TM) — This is the PID run time rate. Humidifier Proportional Gain (HM.P) — This configuration is the PID Proportional Gain. Humidifier Integral Gain (HM.I) — This configuration is the PID Integral Gain. Humidifier Derivative Gain (HM.D) — This configuration is the PID Derivative Gain. OPERATION — For operation, PID control will be utilized. The process will run at the rate defined by the Configuration HUMDH.PIDHM.TM. The first part of humidity control tests the humidity control configuration and will turn on corresponding configurations to read space or return air relative humidity. If the supply fan has been ON for 30 seconds and the space is occupied, then the humidification is started. Actuator Control — Control is performed with a generic PID loop where: Error = HM.SP – humidity sensor value (SP.RH or RA.RH, depending on configuration). The PID terms are calculated as follows: P = K * HM.P * error I = K * HM.I * error + “I” last time through D = K * HM.D * (error – error last time through) Where K = HM.TM/60 to normalize the effect of changing the run time rate Relay Output Control — If the humidity sensor reading is greater than the humidity set point then the humidity relay (OutputsGEN.OHUM.R) is closed. The relay will open when the humidity is 2% less than the humidity set point.
Table 58 — Humidity Configuration ITEM EXPANSION RANGE UNITS CCN POINT DEFAULT HUMD HUMIDITY CONFIGURATION HM.CF Humidifier Control Cfg. 0 - 4 HUMD_CFG 0 HM.SP Humidifier Setpoint 0 - 100 % HUSP 40 H.PID HUMIDIFIER PID CONFIGS HM.TM Humidifier PID Run Rate 10 - 120 sec HUMDRATE 30 HM.P Humidifier Prop. Gain 0 - 5 HUMID_PG 1 HM.I Humidifier Integral Gain 0 - 5 HUMID_IG 0.3 HM.D Humidifier Deriv. Gain 0 - 5 HUMID_DG 0.3 ACT.C HUMIDIFIER ACTUATOR CFGS SN.1 Humd Serial Number 1 0 - 9999 HUMD_SN1 0 SN.2 Humd Serial Number 2 0 - 6 HUMD_SN2 0 SN.3 Humd Serial Number 3 0 - 9999 HUMD_SN3 0 SN.4 Humd Serial Number 4 0 - 254 HUMD_SN4 0 C.A.LM Humd Ctrl Angle Lo Limit 0-90 HUMDCALM 85 CONFIGURING THE HUMIDIFIER ACTUATOR — Every actuator used in the P Series control system has its own unique serial number. The rooftop control uses this serial number to communicate with the actuator. The actuator serial number is located on a two-part sticker affixed to the side of the actuator housing. Remove one of the actuator’s serial number labels and paste it onto the actuator serial number records label located inside the left-hand access panel at the unit’s control panel. Four individual numbers make up this serial number. Program the serial number of the actuator in its Humidifier Actuator Configurations group, ACT.C (SN.1, SN.2, SN.3, SN.4) NOTE: The serial numbers for all actuators can be found inside the control doors of the unit as well as on the actuator itself. If an actuator is replaced in the field, it is a good idea to remove the additional peel-off serial number sticker on the actuator and cover up the old one inside the control doors. Control Angle Alarm (ConfigurationHUMDACTC C.A.LM) — The humidifier actuator learns what its end stops are though a calibration at the factory. Field-installed actuators may be calibrated in the Service Test mode. When an actuator learns its end stops through calibration, it determines its control angle. The actuator will resolve this control angle and express its operation in a percent (%) of this learned range. If the humidifier actuator has not learned a sufficient control angle during calibration, the actuator will be unable to control humidity. For this reason, the humidifier actuator has a configurable control angle alarm low limit (C.A.LM). If the control angle learned through calibration is less than C.A.LM, an alert will occur and the actuator will not function. NOTE: This configuration does not typically need adjustment. It is configurable for the small number of jobs which may require a custom solution or workaround. Dehumidification and Reheat — The Dehumidification function will override comfort condition set points based on dry bulb temperature and deliver cooler air to the space in order to satisfy a humidity set point at the space or return air humidity sensor. The Reheat function will energize a suitable heating system concurrent with dehumidification sequence should the dehumidification operation result in excessive cooling of the space condition. The dehumidification sequence requires the installation of a space or return air humidity sensor or a discrete switch input. A CEM (option or accessory) is required to accommodate an RH (relative humidity) sensor connection. Reheat is possible when multiple-step staged gas control option or hydronic heat Table 59 — Related Humidity Points ITEM EXPANSION UNITS CCN POINT WRITE STATUS ConfigUNITSENSSRH.S Space Air RH Sensor SPRHSENS ConfigUNITSENSRRH.S Return Air RH Sensor RARHSENS InputsREL.HRA.RH Return Air Rel. Humidity % RARH forcible InputsREL.HSP.RH Space Relative Humidity % SPRH forcible OutputsACTUHMD.P Humidifier Act.Curr.Pos. % HUMDRPOS OutputsACTUHMD.C Humidifier Command Pos. % HUMDCPOS OutputsGEN.OHUM.R Humidifier Relay HUMIDRLY 79 (option or field-installed coil) is installed. Reheat is also possible using a heat reclaim coil (field-supplied and installed) or a hot gas reheat coil (special order, factory-installed). Dehumidification and reheat control are allowed during Cooling and Vent modes in the Occupied period. On constant volume units using thermostat inputs (C.TYP = 3), the discrete switch input must be used as the dehumidification control input. The commercial Thermidistat device is the recommended accessory device. SETTING UP THE SYSTEM — The settings for dehumidification can be found at the local display at Configuration DEHU. See Table 60. Dehumidification Configuration (D.SEL) — The dehumidification configuration can be set for the following settings: • D.SEL = 0 — No dehumidification and reheat. • D.SEL = 1 — The control will perform both dehumidification and reheat with modulating valve (hydronic). • D.SEL = 2 — The control will perform dehumidification and reheat with staged gas only. • D.SEL = 3 — The control will perform both dehumidification and reheat with third party heat via an alarm relay. In the case of D.SEL=3, during dehumidification, the alarm relay will close to convey the need for reheat. A typical application might be to energize a 3-way valve to perform hot gas reheat. • D.SEL = 4 — The control will use the Humidi-MiZer ® adaptive dehumidification system. Dehumidification Sensor (D.SEN) — The sensor can be configured for the following settings: • D.SEN = 1 — Initiated by return air relative humidity sensor. • D.SEN = 2 — Initiated by space relative humidity sensor. • D.SEN = 3 — Initiated by discrete input. Economizer Disable in Dehum Mode (D.EC.D) — This configuration determines economizer operation during Dehumidification mode. • D.EC.D = YES — Economizer disabled during dehumidification (default). • D.EC.D = NO — Economizer not disabled during dehumidification. Vent Reheat Set Point Select (D.V.CF) — This configuration determines how the vent reheat set point is selected. • D.V.CF = 0 — Reheat follows an offset subtracted from return air temperature (D.V.RA).
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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 Table 20 — F
Page 27 and 28: AIRFLOW (Cfm) LEGEND Table 22 — F
Page 29 and 30: AIRFLOW (cfm) LEGEND Bhp — Brake
Page 31 and 32: HIGH-EFFICIENCY MOTORS Nominal Maxi
Page 33 and 34: 2. Under the Setpoints menu, set th
Page 35 and 36: would use Period 2 and set days Sat
Page 37 and 38: there is a loss of communication be
Page 39 and 40: and when ON, the control sets a cap
Page 41 and 42: System Mode Test — When the syste
Page 43 and 44: Table 31 — Unit Configuration ITE
Page 45 and 46: SETTING UP THE SYSTEM Machine Contr
Page 47 and 48: High SST Alert Delay Time (H.SST)
Page 49 and 50: 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: Table 57 — Indoor Air Quality Con
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 and 102: Table 81 — Discharge Pressure Tra
Page 103 and 104: Table 82 — Auto View of Run Statu
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
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Table 93 — Rooftop Control Board
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Table 96 — Control Expansion Modu
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LEGEND IAQ — Indoor Air Quality V
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the motor position to be configured
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TIME EWT LWT SETP Run Status Servic
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Fig. 37 — Door Latch Fig. 38 —
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SUPPLY FAN AND POWER EXHAUST MOTOR
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Routine cleaning of coil surfaces i
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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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