Johnson Controls GVA Series Start-Up & Operation
  1. Manuals
  2. Brands
  3. Johnson Controls Manuals
  4. Air Conditioner
  5. GVA Series
  6. Start-up & operation

Johnson Controls GVA Series Start-Up & Operation

25–50 tons premier rooftop units
Hide thumbs
Table of Contents

Advertisement

Quick Links

START-UP
25-50 Tons
Premier Rooftop Units
R-410A
Nomenclature ...................................................................... 4
Pre Start-Up Checklist ......................................................... 7
Start-Up ............................................................................... 9
Long Term Storage ......................................................... 9
Unit Checks (Power Applied) ....................................... 10
Initial Start-Up .............................................................. 16
Refrigerant Charge ............................................... 16
Leak Checking ...................................................... 17
Gas Heat Models .................................................. 17
Phase Monitor Adjustment .................................... 20
Commissioning Mode................................................... 20
Air Balancing Wizard .................................................... 20
Start-Up Wizard ............................................................ 24
Start-Up Wizard Sequence ................................... 26
Sequences of Operation .................................................... 30
Control Boards ............................................................. 30
Variable Frequency Drives (VFDs) ............................... 37
Unit Type ...................................................................... 38
Occupancy Mode ......................................................... 38
Morning Warm-up/Cool Down ............................... 38
Coast..................................................................... 38
Remote Safety Shutdown ............................................ 39
Low Voltage Monitoring ................................................ 39
Supply Fan Operation .................................................. 39
Supply Fan Alarm.................................................. 39
MZVAV Supply Fan ............................................... 39
SZVAV Supply Fan ............................................... 40
Redundant Supply Fan VFD ................................. 40
Cooling Operation ........................................................ 40
MZVAV Cooling Operation .................................... 40
SZVAV Cooling Operation ..................................... 42
OPERATION
&

Table of Contents

Compressor Staging Sequences .......................... 44
Condenser Systems and Fans.............................. 48
Dehumidification (Hot Gas Reheat) ...................... 49
Economizer ........................................................... 51
Heating ......................................................................... 52
Gas Heating .......................................................... 52
Electric Heating ..................................................... 56
Hydronic Heating .................................................. 56
MZVAV Heating Operation .................................... 56
SZVAV Heating Operation .................................... 57
Ventilation..................................................................... 58
Ventilation Sequences .......................................... 58
Low Mixed Air Temperature Limiting ..................... 58
Demand Control Ventilation .................................. 58
Continuous Ventilation .......................................... 59
Pre-Occupancy Purge........................................... 59
Humidification............................................................... 60
Humidification Sequence ...................................... 60
Exhaust System ........................................................... 60
Modulating Exhaust Fan ....................................... 60
External Control .................................................... 60
Return Fan ................................................................... 60
Return Fan Discharge Pressure ........................... 61
Supply Fan Airflow Tracking.................................. 61
Energy Recovery Wheel .............................................. 61
Ultraviolet Lights........................................................... 61
Smoke Control ............................................................. 62
Purge .................................................................... 62
Pressurization ....................................................... 62
Depressurize ......................................................... 62
LD26877
5586996-JSG-A-0120

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GVA Series and is the answer not in the manual?

Questions and answers

Related Manuals for Johnson Controls GVA Series

Summary of Contents for Johnson Controls GVA Series

  • Page 1: Table Of Contents

    START-UP OPERATION & 25–50 Tons Premier Rooftop Units R-410A LD26877 Table of Contents Nomenclature ..............4 Compressor Staging Sequences ......44 Pre Start-Up Checklist ............7 Condenser Systems and Fans......48 Start-Up ................9 Dehumidification (Hot Gas Reheat) ...... 49 Long Term Storage ............
  • Page 2 Table 28: BACnet IP Settings ..............................96 Table 29: BACnet MS/TP Settings .............................. 96 Table 30: MAP Gateway Related Documentation ........................97 Table 31: Verasys Related Documentation ..........................98 Table 32: BACnet Points List ..............................98 Table 33: Faults List .................................. 117 Johnson Controls...
  • Page 3 Figure 40: FC Bus Daisy Chain ..............................94 Figure 41: SA Bus Daisy Chain ..............................95 Figure 42: Controller–Network Menu............................96 Figure 43: MAP Gateway Dashboard ............................97 Figure 44: Verasys Dashboard ..............................98 WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Johnson Controls...

  • Page 4: Nomenclature

    5: Supply Fan VFD and Return/Exhaust Fan G: Top Return, Left OA, Side Exhaust (No Return Fan Available) GV: Johnson Controls 6: Supply Fan VFD with Line Reactor and H: Top Return, Left OA, Front Exhaust (No Digit 3: Capacity...
  • Page 5 E: Hot Gas Reheat (HGRH) J: 15 HP Filters F: Suction and Discharge Valves with HGRH K: 20 HP C: Angled Filter Rack, 2-Inch MERV 8 Filters G: Suction, Discharge, and Liquid Valves with D: Rigid Filter Rack, No Filters HGRH Johnson Controls...
  • Page 6 Building System Interface Board V: MAP with BACnet IP and Building System Interface Board X: BACnet MS/TP, Modbus, N2 with Touch- screen and MAP and Building System Interface Board Y: Touchscreen with MAP with BACnet IP and Building System Interface Board Johnson Controls...

  • Page 7: Pre Start-Up Checklist

    Start-Up & Operation Guide | 5586996-JSG-A-0120 NEW RELEASE Form 5773246-JCL-A-619 25–50 Tons Johnson Controls Premier Rooftop Units ® R-410A Pre Start-Up Checklist Date: ______________ Customer: ____________________________________ Phone No: ___________________ Job Name: ______________________________________ Job Address: _______________________________________ Order No.: ______________________________________ City: _______________________________________ Contract No.: ____________________________________...
  • Page 8 _______ consecutive normal working hours, and we agree that a charge of _________ per diem plus travel expenses will be made to Johnson Controls if services are required for longer than ________ consecutive normal hours or if repeated calls are required, through no fault of Johnson Controls.

  • Page 9: Start-Up

    7. Verify fuse sizing in main circuits. 8. Verify field wiring for thermostat (if applicable), optional zone sensor, etc. LD05370 9. Verify all applicable pneumatic tubing has been Figure 1: Trap Detail for Draw Through Application field installed for duct static pressure transducer Johnson Controls...

  • Page 10: Unit Checks (Power Applied)

    Table 4 on page 14 through Table 7 on page 15 for fan perfor- d. If the optional suction and discharge pres- sure transducers are not installed, pressures mance for pulley and drive information. Johnson Controls...

  • Page 11: Table 1: Component Static Pressure Drops (Iwg)

    All Discharges in Blank Section 0.01 0.01 0.02 0.03 0.05 Bottom 0.02 0.03 0.05 0.06 0.08 0.10 0.13 Side 0.02 0.03 0.05 0.06 0.08 0.10 0.13 All Discharges in Blank Section 0.01 0.02 0.03 0.04 0.05 0.06 0.08 Johnson Controls...
  • Page 12 MERV 14 Rigid Filters with 2-inch 0.19 0.24 0.30 0.35 0.41 0.47 0.53 Pre-Filters MERV 15 Bag Filters with 2-inch 0.43 0.52 0.61 0.70 0.77 0.85 0.91 Pre-Filters MERV 17 HEPA Filters with 2-inch 0.67 0.83 0.99 1.15 1.31 1.47 1.63 Pre-Filters Johnson Controls...

  • Page 13: Table 2: 25-30 Ton Supply Fan Total Static Pressure

    10,000 1601 11.09 1656 12.27 1710 13.41 1765 14.54 1820 15.71 1874 16.99 1928 18.37 11,000 1658 12.31 1707 13.43 1756 14.63 1806 15.92 1855 17.21 1905 18.45 1955 19.69 12,000 1723 13.70 1768 14.91 1813 16.10 1858 17.32 1903 18.62 1949 20.00 1994 21.42 Johnson Controls...

  • Page 14: Table 3: 40-50 Ton Supply Fan Total Static Pressure

    8.32 9,000 4.90 5.88 6.90 7.74 1073 8.94 1145 10.11 10,000 6.48 7.53 8.72 1036 9.73 1106 10.69 1179 12.01 11,000 8.38 9.52 1009 10.75 1085 12.07 1150 13.11 1213 14.16 12,000 10.62 11.89 1060 13.17 1131 14.60 Johnson Controls...

  • Page 15: Table 5: 40-50 Ton Exhaust Fan Total Static Pressure

    16.55 18,000 1285 8.06 1340 9.96 1391 11.80 1440 13.70 1488 15.76 1537 18.01 19,000 1351 9.25 1403 11.26 1452 13.21 1499 15.18 1544 17.26 1590 19.53 20,000 1416 10.56 1466 12.69 1514 14.75 1559 16.80 1602 18.92 Johnson Controls...

  • Page 16: Initial Start-Up

    The superheat is calculated as the difference between the actual temperature of the refrigerant gas in the suc- tion line and the temperature corresponding to the suc- tion pressure as shown in Table 8 on page 17. Johnson Controls...

  • Page 17: Leak Checking

    If leak checking a unit charged with R-410A, ensure the leak test device is capable of sensing refrigerant R-410A. Table 8: R-410A Pressure/Temperature Chart PSIG TEMP (˚F) PSIG TEMP (˚F) PSIG TEMP (˚F) PSIG TEMP (˚F) Johnson Controls...
  • Page 18 On staged gas heat, as soon as the limit closes, the ignition control re-initiates the ignition se- quence. When the limit opens on a modulating gas heat section, the ignition controller locks out the heat section. Johnson Controls...

  • Page 19: Table 9: Staged Gas Low Fire/High Fire Pressures

    Small adjustments to the manifold gas pressure can be made by following the procedure outlined below. Refer e. Place a finger over the adjustment opening to Figure 2 for the high and low fire pressure regulator while verifying the manifold pressure. adjustment locations. Johnson Controls...

  • Page 20: Phase Monitor Adjustment

    Phase Monitor Checks and Adjustments technicians and air balancers. See Table 11. in the Maintenance section of the Johnson Controls Premier 25–50 Ton Rooftop Units Installation and When the air balancer mode is set to enable, all heating Maintenance Manual (Form 5586959-JIM).

  • Page 21: Table 11: Air Balancing Wizard Points

    SZVAV unit with modulating or proportional heat This input is the current minimum fan speed setpoint. This point is only SZVAV Minimum Fan Speed viewable when the unit is NOT configured as a SZVAV unit with heating Johnson Controls...
  • Page 22 This input allows the exhaust damper command to be overridden. None = No Override, Software = Position Override from user interface or MAP, Exhaust Damper % Override Mode Hardware = Manually Override From Potentiometer on Analog Input. Set back to none to release the override command Johnson Controls...
  • Page 23 See Return Fan View NOTES: 1. View only available when return fan is installed. 2. View only available if exhaust type is set to modulating damper. 3. View only available if exhaust type is set to variable frequency fan. Johnson Controls...

  • Page 24: Start-Up Wizard

    Duct Pressure Duct static pressure reading. Only used with SZVAV Duct Pressure Setpoint Duct static pressure setpoint. Only used with SZVAV SF Status The status feedback from the supply fan Htg x Status The status of heating stage x Johnson Controls...
  • Page 25 The supply fan command output SF Test State The state output of the supply fan check Elec Heat Test State The state output of the electric heat check Ehx Test State The state output of the electric heat stage x check Johnson Controls...

  • Page 26: Start-Up Wizard Sequence

    460. Any imbalance of more than 2% is considered a fail- • Supply fan (automatically runs if heating or cool- ure. Voltages, voltage imbalance, and test status are ing is enabled) recorded. • Cooling • Heating Johnson Controls...
  • Page 27 ERW test and records the failed test result • The unit controller commands the exhaust air damper to 50%, displays that the damper is open- ing to half, then waits 85 seconds Johnson Controls...
  • Page 28 • The unit runs for an extra 5 minutes, which can be • Otherwise, the supply fan is stopped and the sup- skipped by the user ply fan check is recorded as failed Johnson Controls...
  • Page 29 When the start-up wizard heating option is set to en- wizard skips to the next furnace test. The unit able, the start-up wizard runs the following electric heat controller records either state or the gas heat check. The application automatically determines which heating test to run. Johnson Controls...

  • Page 30: Sequences Of Operation

    USB. Sequences of Operation The Premier rooftop units are highly sophisticated ma- chines. Johnson Controls has leveraged the latest ad- vances technology has to offer in developing these units. The base unit is cooling only with a variable frequency drive (VFD) controlled supply fan.

  • Page 31: Table 13: Main Control Board Field Terminal Points

    Field control wiring MUST be a minimum 20 AWG and should contain a shield. Table 13: Main Control Board Field Terminal Points Callout Name Description IO Type IO Number OCC-S Occupancy Input Status SS-S Safety Switch Status LD27995 Figure 5: Main Control Board Johnson Controls...

  • Page 32: Table 14: Condenser Boards Field Terminal Points

    NOTE: There are two condenser boards installed. On the control board panel, condenser board 1 is above board 2. LD27998 Figure 6: Condenser Boards Table 15: Options Board Field Terminal Points Callout Name Description IO Type IO Number DAP-SP Discharge Air Static Pressure Setpoint DAT-SP Discharge Air Temperature Setpoint LD27996 Figure 7: Options Board Johnson Controls...

  • Page 33: Table 16: Building System Interface Board Field Terminal Points

    ALARM1-C Alarm 1 Command ALARM2-C Alarm 2 Command HUM-C Humidifier Command ISOD-C Isolation Damper Command VAVHTG-C MZVAV Heat Command 20 21 22 23 14 15 16 17 18 19 12 13 LD27997 Figure 8: Building System Interface Board Johnson Controls...

  • Page 34: Figure 9: Modulating Gas Heat Control Board

    5586996-JSG-A-0120 | Start-Up & Operation Guide LD28372 Figure 9: Modulating Gas Heat Control Board LD28373 Figure 10: Staged Gas Heat Control Board Johnson Controls...

  • Page 35: Figure 11: Field Wiring To Building System Interface Board

    Start-Up & Operation Guide | 5586996-JSG-A-0120 LD28043 Figure 11: Field Wiring to Building System Interface Board Johnson Controls...

  • Page 36: Figure 12: Field Wiring To Options Board

    5586996-JSG-A-0120 | Start-Up & Operation Guide LD28044 Figure 12: Field Wiring to Options Board LD28044 Figure 13: Field Wiring to Main Control Board Johnson Controls...

  • Page 37: Variable Frequency Drives (Vfds)

    2. Max Out Freq is specific to the fan used in the unit. It is set to the fan's maximum RPM limit and locked from user adjustment to prevent unsafe operating conditions. 3. AI Max Ref is unit specific and calculated based on the the user requirements for airflow and static air pressure. Johnson Controls...

  • Page 38: Unit Type

    When coast is user enabled, the unit controller raises up setpoint or the early start period expires. The control the active cooling setpoint 1.0°F per hour or lowers the goes into occupied mode thereafter. active heating setpoint 1.0°F per hour (user adjustable). Johnson Controls...

  • Page 39: Remote Safety Shutdown

    The unit controller outputs a 0–10 VDC signal to the supply fan VFD. The DSP setpoint must be set under the Views > Commissioning > Air Balancer > Supply menu. Johnson Controls...

  • Page 40: Szvav Supply Fan

    If the lead supply fan VFD develops a fault, the unit methods. These five different methods allow the unit to controller automatically starts the lag supply fan VFD meet almost any engineer/customer specification. to keep the unit in operation. Johnson Controls...
  • Page 41 If the DAT reset method is set for external con- • DAT High Setpoint: This is the maximum trol, the unit controller continuously monitors this value the user wants for the DAT external signal. This signal is a hard wired 0–10 VDC input to the options board. Johnson Controls...

  • Page 42: Szvav Cooling Operation

    ZT demand. The supply fan operates at When facing the compressor end, condenser fan 1A is on the left and condenser fan 2A is on the right. the SZVAV cooling minimum speed (user adjustable). Figure 17: Condenser Fan/Compressor Locations Johnson Controls...

  • Page 43: Table 18: Compressor Numbering

    ON and the last compressor OFF. overshooting the active DAT cooling setpoint. The variable speed compressor is controlled by a fac- tory installed VFD. The VFD is selected by the com- pressor manufacturer and all programming is complet- ed at the factory. Johnson Controls...

  • Page 44: Compressor Staging Sequences

    The temporary speed boost can be triggered in cuit 1. If part of a tandem set, it is compressor 1A. one of two ways: The variable speed drive compressor is controlled by a VFD. The compressor manufacturer supplies the VFD. Johnson Controls...
  • Page 45 Unit > Reset Lockouts menu. tion modules • Compressors without compressor motor pro- tection modules have internal overloads in the motor windings. The internal overloads are not a part of the safety chain Johnson Controls...

  • Page 46: Figure 18: Safety Chain Wiring

    5586996-JSG-A-0120 | Start-Up & Operation Guide LD28002 Figure 18: Safety Chain Wiring CONDENSER BOARD 2 CONDENSER BOARD 1 LD28010 Figure 19: Low Pressure Cutout Switch Wiring Johnson Controls...

  • Page 47: Table 20: Compressor Motor Protection

    This process is repeated every 60 seconds until tion is only available on units equipped with the the liquid line pressure falls below the liquid line suction line transducer option. high pressure limit or all compressors in the circuit have been disabled. Johnson Controls...

  • Page 48: Condenser Systems And Fans

    Ensuring that all the refrigerant is condensed to a liquid er fans remains the same is critical for the proper operation of the overall com- pressor system. Johnson Controls...

  • Page 49: Dehumidification (Hot Gas Reheat)

    This HGRH bleed solenoid valve allows excess After the saturated liquid line temperature reaches refrigerant and oil to bleed back into the suction line 110.0°F, the condenser fan VFD speed is 100%. when HGRH operation is not needed. Johnson Controls...

  • Page 50: Figure 20: Active Dat Setpoint When Unit Is In Idle Mode

    HGRH bleed valve opens. DAT setpoint and the current RAT. See Figure 20. The compressors are controlled to the active EAT setpoint. This allows for humidity to be removed from the air while not over-cooling the space. Johnson Controls...

  • Page 51: Economizer

    There are four economizer options that can be in- economizer operation stalled: dry bulb, singly enthalpy, dual enthalpy, and differential dry bulb. Johnson Controls...

  • Page 52: Heating

    The controller performs a system check to ensure comes unreliable, the unit controller starts to control that all safeties are closed, the APS is open, and the the economizer in single enthalpy. 2-stage gas valve is closed. Johnson Controls...

  • Page 53: Table 23: Staged Gas Heating Faults List

    Prime and split burner gas valve is shorted to 24VAC. Prime and split burner modulation/staging failure. The failure indicates that the gas valve state is low when it must be high, or it is high when it must be low. Johnson Controls...
  • Page 54 APS opens and closes at the cor- • After three failed ignition attempts, the rect settings controller enters a 1-hour lockout • When the pre-purge cycle is satisfactory, the con- troller enters the ignition cycle Johnson Controls...

  • Page 55: Table 24: Modulating Gas Heating Faults List

    Air pressure sensor reading high (pressure switch failed to close) Lockout Unexpected flame, main burner Lockout No R-W enable signal during CFH Lockout Open fuse Lockout Unexpected flame, split manifold burner Lockout Invalid ID, plug installed None None Lockout Board not receiving 24 volts Johnson Controls...

  • Page 56: Electric Heating

    The operational zone temperature relies on which • Steady ON whenever the SCR is ener- of the following sensors are connected and reliable. gized and controlling the load When more than one is connected and reliable, they are used in order of priority. Johnson Controls...

  • Page 57: Szvav Heating Operation

    On a demand for W2, the supply fan operates at 100% fan speed, and the active DAT setpoint is • NetSensor the DAT heating upper setpoint. • Zone temperature sensor • Return air temperature Johnson Controls...

  • Page 58: Ventilation

    When the supply fan is running at 50%, the outside air acceptable level. damper is at damper minimum position low speed fan setpoint. The outside air damper position is the greater of the minimum outdoor air damper reset or the DCV position. Johnson Controls...

  • Page 59: Continuous Ventilation

    (Figure 23) • The supply fan VFD is turned ON and controlled by either MZVAV or SZVAV fan sequences. • The outside air damper starts to drive open. • The unit controller turns ON the MZVAV heat com- mand. Johnson Controls...

  • Page 60: Humidification

    A return fan assembly is typically used when the HVAC system has a return duct static that is too great to be Modulating Exhaust Fan overcome by the supply fan alone. This exhaust system sequence has a VFD driven ex- haust fan and a barometric damper. Johnson Controls...

  • Page 61: Return Fan Discharge Pressure

    (once a year). • The ERW is enabled when the difference between UV lights are energized any time the unit power is ON. the return air and the outside air is greater than the energy recovery setpoint. Johnson Controls...

  • Page 62: Smoke Control

    Screen Layout – The display has multiple menu and the MZVAV heat command relay is turned ON sub-menu screens that provide easy navigation. The display is configured into Status, Alarms, Alarm Log, Summary, Commission, Controller, Update, Details, Schedule, and Start-Up Wizard menu options. Johnson Controls...

  • Page 63: Figure 24: Status Menu

    Controller Menu – Displays network, firmware, and erated with date and time stamps. time setup information. Time sub-menu is used to set the time zone. The default is Central time zone. LD28016 Figure 26: Alarm Log Menu LD28019 Figure 29: Controller Menu Johnson Controls...

  • Page 64: Table 26: Menus And Submenus

    Normal, Pressurize, Depressurize, Purge, Command) / Normal Shutdown, Pre-Shutdown SafetyCmdSrc (Safety Command Unreliable, Local Input, Network Sensor, High SmokeCtrl Source) / Local Input Priority, BAS Override, Input Not Available Safety1 (Local Safety Command Input 1) False, True / False Johnson Controls...
  • Page 65 Occupied Heating, OFF-Disabled, OFF-OAT Lockout, OFF-SAT Limit, OFF-Waiting for Changeover Delay, Comfort Ventilation PFILT-DP (Pre-Filter Differential Pressure) FFILT-DP (Final Filter Differential Pressure) PHASE-A (Phase Monitor Alarm) / Normal Normal, Alarm 24VAC (24VAC Input) / Displays Active Volts (V) Voltage Johnson Controls...
  • Page 66 Unreliable, Local Input, Network Sensor, High SHSrc (Space Humidity Source) Priority, BAS Override, Input Not Available OAH (Outside Air Humidity Input) Unreliable, Local Input, Network Sensor, High OAHSrc (Outside Air Humidity Source) Priority, BAS Override, Input Not Available IAQ (Indoor Air Quality) Johnson Controls...
  • Page 67 Econ-MinPos (Economizer Minimum % (0–100) Position Setpoint) LowSpeedFan-MinPos (Economizer Damper Minimum Position Low Speed % (0–100) Fan) / 25% HighSpeedFan-MinPos (Economizer Damper Minimum Position High Speed % (0–100) Fan) / 5% SZVAVEn (SZVAV Enabled, Set by OFF, ON Factory) Johnson Controls...
  • Page 68 OAPctOvr-Pos (Economizer Damper % (0–100) Percent Over Position) / 0% Air Balance Mode / Disable Disable, Enable Export Air Balancing Report Air Balance > Supply UnitEn (Unit Enable) / Enable Shutdown, Enable Auto Calibrate Now / OFF OFF, ON Johnson Controls...
  • Page 69 MaxOAFlow (Maximum Outside Airflow) cfm (0–100,000) Air Balance Mode / Disable Disable, Enable Export Air Balancing Report Air Balance > UnitEn (Unit Enable) / Enable Shutdown, Enable Return RAD-O (Return Air Damper Command) RFPctOvr-Mode (Return Fan Percent OFF, ON Override Mode) Johnson Controls...
  • Page 70 ExDmpPosFanOff (Exhaust Damper % (10–89) Position for Exhaust Fan to Turn Off) / 10% Exhaust Flow Value Exhaust Pickup Gain 0–100 Exhaust Area square feet (0–100) BldgPres (Building Static Pressure) Bldg-Sp (Building Pressure Setpoint) iwg (-0.25 to 0.25) Johnson Controls...
  • Page 71 CF-1B (Condenser Fan 1B) / OFF OFF, ON CF-2A (Condenser Fan 2A) / OFF OFF, ON ModCondFan2Out (Modulating % (0–100) Condenser Fan 2 Output) CF-2B (Condenser Fan 2B) / OFF OFF, ON HGR (Hot Gas Reheat Command) / 0% % (0–100) Johnson Controls...
  • Page 72 IPRouterAddress StaticIPAddress Refer to BACnet Integration Setup on page 94 StaticIPMask StaticIPRouterAdrs ApplyStaticIP DHCP-En Group ID, Default - 0 (0–100) Device# (Device Number) / 0 (0–100) Twinning Offline No, Yes OnlineDevCount (Online Device Count) counts IsoDmpr Close, Open Johnson Controls...
  • Page 73 IAQ (Indoor Air Quality) ppm (-100 to 100) DAH (Discharge Air Humidity) %RH (-10 to 10) EAHR-T (Exhaust Air Heat Recovery delta deg F (-10 to 10) Temp) HE-T (Heat Entering Temperature) delta deg F (-10 to 10) Johnson Controls...
  • Page 74 DeviceId Refer to Table 29 on page 96 Language / English English Units / IP IP, SI #NetSensors (Displays the Network Sensors Connected in SA Bus) Relearn (Clears the SA Bus Devices in False, True Memory) / False) Johnson Controls...
  • Page 75 NetFanReq (Network Override Fan OFF, ON Request) NetOAT (Network Override Outside Air deg F Temperature) NetOAH (Network Override Outside Air Humidity) NetSafety (Network Override Safety False, True Command) Eastern, Central, Mountain, Pacific, Newfoundland, Time TimeZone / Central Atlantic, Alaska, Hawaii Johnson Controls...
  • Page 76 #CompCircuit2 (Number Of Compressors 1–3 On Circuit 2) / Set by Factory Clg > Setup ClgOcc-Sp (Occupied Cooling Setpoint) deg F (45–98) Common-SP (Common Setpoint) deg F (45–98) Auto Changeover delta deg F (2–5) ClgUnocc-Sp (Unoccupied Cooling deg F (46–99) Setpoint) Johnson Controls...
  • Page 77 OprClgDAT-SP (Operating Cooling deg F technicians to Discharge Air Temperature Setpoint) get detailed OprOAT (Operational Outside Air information) deg F Temperature) OprZT (Operational Zone Temperature) deg F RAT (Return Air Temperature) deg F Econ-Free (Economizer Free Cooling No, Yes Available) Johnson Controls...
  • Page 78 LLP-1 (Liquid Line Pressure 1) DLP1 (Discharge Line Pressure 1) Clg > Sensors SLT-1 (Suction Line Temperature 1) deg F LLT-1 (Liquid Line Temperature 1) deg F DLT1 (Discharge Line Temperature 1) deg F SLP-2 (Suction Line Pressure 2) Johnson Controls...
  • Page 79 Normal, Alarm Continuously Alarm) BASTrimRespond-En (BAS Trim and Disable, Enable Clg > FDD Respond Enabled) / Disable SPNoChangeAlm (Setpoint Not Normal, Alarm Changing Alarm) DownInOccAlm (Unit Down in Occupied Normal, Alarm Alarm) LowCoolCapAlm (Insufficient Cooling Normal, Alarm Capability Alarm) Johnson Controls...
  • Page 80 F (86–135) Temperature Upper Setpoint) HtgDATLo-SP (Heating Discharge Air deg F (85–134) Temperature Lower Setpoint) OAT-ResetSpLower (OAT Reset deg F (60–130) Setpoint Lower) OAT-ResetSpUpper (OAT Reset deg F (61–131) Setpoint Upper) ZT-ResetSpLower (ZT Reset Setpoint deg F (60–130) Lower) Johnson Controls...
  • Page 81 OFF-Idle, ON-Minimum Runtime Timer, ON-Normal Htg > Service Command, OFF-Heating is Disabled, OFF-Gas > Stage 1– H1-S (Heating Stage 1 Status) Valve Lost Proof, OFF-Gas Valve False Proof, Stage 8 OFF-Heating Limit Lockout, OFF-Anti-Short Cycle Timer, OFF-Heating Stage is Disabled Johnson Controls...
  • Page 82 HydReverse (Hydronic Heat Valve No, Yes Reverse Acting) / No Freeze-Sp (Freeze Condition Setpoint) deg F (20–32) FanOnOcc (Continuous Ventilation) / Yes Yes, No SF > Setup FanOffDlyHeat (Fan Off Delay for Heat) seconds (0–30) / 0 seconds) Johnson Controls...
  • Page 83 DAPHI-A (Discharge Air High Duct Normal, Alarm Pressure) DA-DP (Discharge Air Differential Pressure) DADP-Alarm (Discharge Air VP Sensor Normal, Alarm Alarm) RADP-Alarm (Return Air VP Sensor Normal, Alarm Alarm) RFP-Alarm (Return Fan Pressure Normal, Alarm Sensor Alarm) UVLight-Rt (UV Light Runtime) hours Johnson Controls...
  • Page 84 (0–3,000) Deadband) OFF-Idle, Thermostat Cooling, Unoccupied Cooling, Occupied Cooling, OFF-OAT Lockout, Econ > OFF-Disabled, OFF-Lockout, OFF-Low Supply Clg-S (Cooling Status) Service Voltage, OFF-Low Ambient, OFF-Low Ambient Pre- Run Delay, OFF-Waiting For Changeover Delay, OFF-Free Cooling, Comfort Ventilation Johnson Controls...
  • Page 85 EF-S (Exhaust Fan Status) OFF-VFD Fault, OFF-Low Building Static Pressure, OFF-Economizer Damper Position EF-C (Exhaust Fan Command) OFF, ON Exhaust > BLDG-P (Building Static Pressure) Service EAD-O (Exhaust Damper % Command) EF-Flow (Exhaust Flow Value) Power Ex VFD OFF, ON Johnson Controls...
  • Page 86 OFF, ON C1B (Compressor 1B Command) OFF, ON C2A (Compressor 2A Command) OFF, ON C2B (Compressor 2B Command) OFF, ON OprHtgDAT-SP (Operating Heating deg F Discharge Air Temperature Setpoint) StgHtgCmd (Staged Heating Command) OprZT (Operational Zone Temperature) deg F Johnson Controls...
  • Page 87 H7 (Heating Stage Command 7) OFF, ON H8 (Heating Stage Command 8) OFF, ON HGR-En (Hot Gas Reheat Enabled For None, Normal, Alternate Operation) Humidity > Dehum-SP (Dehumidification Setpoint) %RH (0–100) Setup HGRUnocc-En (HGRH Enabled for No, Yes Unoccupied Operation) Johnson Controls...
  • Page 88 OFF, Max Cooling, Max Heating, Blocking HRW-S (Heat Recovery Wheel Status) Protection, Heating Control, Heating Low Limit SF-C (Supply Fan Command) OFF, ON Econ-Free (Economizer Free Cooling No, Yes Available) EAHR-T (Exhaust Air Heat Recovery deg F Temperature) Johnson Controls...
  • Page 89 HH:MM Occupied, HH:MM UnOccupied Remove Event Saturday HH:MM Occupied, HH:MM UnOccupied Sunday HH:MM Occupied, HH:MM UnOccupied Start-Up Wizard (Refer Start-Up to Start- Wizard Export Start-Up Wizard Report / No No, Yes Up Wizard (Figure 33) Sequence on page 26) Johnson Controls...
  • Page 90 Disable, Enable Heat Recovery Wheel Test / Disable Disable, Enable Supply Fan Test / Disable Disable, Enable Compressor Test / Disable Disable, Enable Heating Test / Disable Disable, Enable Run Startup Wizard / No No, Yes Cancel No, Yes Johnson Controls...

  • Page 91: Turning On The Unit

    Power up the sulting with Product Technical Support. The latest firm- unit. ware files can be found on the Navigator customer portal ® under Support > UPG Tech Service Software > Premier Firmware. Johnson Controls...

  • Page 92: Backup Function

    (Figure 37). The restoration file size is • Unit model number generally less than 30 KB. • Unit serial number • Fan accumulated runtime • Address • Time zone LD28369 Figure 36: Backup Configuration Display Johnson Controls...

  • Page 93: Communication

    • MZVAV unoccupied heating enabled advanced application control profile. • MZVAV unoccupied heating setpoint • Morning warm-up enabled • Morning warm-up/return air temperature setpoint • SZVAV occupied heating setpoint • SZVAV unoccupied heating setpoint • Low ambient economizer setpoint Johnson Controls...

  • Page 94: Bacnet Integration Setup

    3-wire twisted, shielded cable as shown in Figure used to connect (daisy chain) the shields for FC bus wiring. 40. See Table 27 on page 95 for more information. LD28037 Figure 40: FC Bus Daisy Chain Johnson Controls...

  • Page 95: Table 27: Cable Recommendations For Bacnet Ms/Tp, Modbus, And N2

    • LNK – LEDs blink green when ETH1/ETH2 are connected to an Ethernet switch Modbus Terminal Block • ACT – LEDs blink green when ETH1/ETH2 are The Modbus connects to the burner control board and communicating the VFDs installed in the unit. Johnson Controls...

  • Page 96: Setting Up Device Parameters

    4 / 4–255 the same RS-485 bus, use sequential reserved for reserved for reserved for reserved for addressing. No single MAC address the unit the unit the unit the unit can be used by more than one device Johnson Controls...

  • Page 97: Mobile Access Portal (Map) Gateway

    Login > Product Informa- tion & Support > Device Updates. For related documentation, including how to set up parameters, and training videos, visit verasyscontrols. com/resources/technical-literature-and-documentation. LD28042 Figure 43: MAP Gateway Dashboard Johnson Controls...

  • Page 98: Table 31: Verasys Related Documentation

    A BAS command to override OAT NetOAT 29543 NetOAT (-50.0 to 125.0°F) Operational Displays the active outside air OprOAH 29544 OprOAH Outdoor Air humidity (%RH) Humidity Outdoor Air Displays the active outside air OA-Enth 29545 OA-Enth Enthalpy enthalpy (BTU/lb) Johnson Controls...
  • Page 99 The upper setpoint for the DAT reset ClgDATUp-SP 29604 ClgDATUp-SP Upper Setpoint schedule (41.0–80.0°F) Cooling DAT The lower setpoint for the DAT reset ClgDATLo-SP 29605 ClgDATLo-SP Lower Setpoint schedule (40.0–79.0°F) Operating Cooling OprClgDAT-SP 29607 OprClgDAT-SP Displays the active DAT setpoint (°F) DAT Setpoint Johnson Controls...
  • Page 100 SLT-2 Temperature 2 line temperature (°F) Liquid Line Displays the active system 1 liquid LLT-1 29683 LLT-1 Temperature 1 line temperature (°F) Liquid Line Displays the active system 2 liquid LLT-2 29684 LLT-2 Temperature 2 line temperature (°F) Johnson Controls...
  • Page 101 Displays the active MAT (°F) Temperature Discharge Air Displays the active discharge air 29762 Humidity humidity (%RH) Return Air Displays the active return air RA-Enth 29763 RA-Enth Enthalpy enthalpy (BTU/lb) Return Air 29764 Displays the active RAT (°F) Temperature Johnson Controls...
  • Page 102 Morning Warm- A BAS command to adjust morning MornWRAT-Sp 29823 MornWRAT-Sp up/RAT Setpoint warm-up/RAT setpoint (50.0–85.0°F) Economizer The economizer damper position EconDampPos 29824 EconDampPos Damper Position feedback (%) Return Air Displays the active return air humidity 29828 Humidity (%RH) Johnson Controls...
  • Page 103 Displays the time remaining for C2B-ASCDTmr 29945 C2B-ASCDTmr Delay Time compressor 2B to turn ON (seconds) Remaining 2B Displays the minimum time remaining Min. ON Time C2BOnTimer 29947 C2BOnTimer for compressor 2B to turn OFF Remaining 2B (seconds) Johnson Controls...
  • Page 104 7 Accumulated heating (hours) Runtime Heating Number Displays the heating start counts for H7-Starts 29991 H7-Starts Times ON 7 stage 7 Heating Stage Displays the total runtime for stage 8 H8-Runtime 29993 H8-Runtime 8 Accumulated heating (hours) Runtime Johnson Controls...
  • Page 105 A BAS command to adjust DAT SF-DAT- SF-DAT- 30030 Setpoint Low based on low supply fan speed SpLowThresh SpLowThresh Threshold (0–100%) SZVAV Cooling A BAS command to adjust SZVAV SZVAVClgMinFan 30034 SZVAVClgMinFan Minimum Fan cooling minimum fan speed (20–67%) Speed Johnson Controls...
  • Page 106 Unit Name Displays the unit name Unit Serial Serial# 29806 Serial# Displays the unit serial number Number FirmVer 29807 FirmVer Firmware Version Displays the firmware version DevName 29818 DevName Device Name A BAS command to input device name Johnson Controls...
  • Page 107 29518 OccMode Occupancy Mode to be placed in a occupancy mode 0 = schedule 1 = external Network A BAS command to request network Temporary NetTempOcc 29519 NetTempOcc temporary occupancy Occupancy 0 = false 1 = true Request Johnson Controls...
  • Page 108 2 = network sensor 3 = high priority Displays the active supply fan status of the unit Supply Fan 0 = OFF/idle Fan-S 29550 SupplyF-S Status 1 = ON/purge 2 = ON/gas valve or limit fault 3 = ON Johnson Controls...
  • Page 109 A BAS command to enable C2A-En 29622 C2A-En Enabled compressor 2A 0 = YES 1 = NO Compressor Displays the status of CKT 1 safety COMP1-A 29639 COMP1-A Safety Chain 1 chain 0 = normal 1 = alarm Johnson Controls...
  • Page 110 2 = ON/normal command 3 = OFF/heating is disabled Displays the status of heating stage 2 0 = OFF/idle Heating Stage 2 H2-S 29736 H2-S 1 = ON/minimum runtime timer Status 2 = ON/normal command 3 = OFF/heating is disabled Johnson Controls...
  • Page 111 ExF-S 29777 ExRt-S Fan Status 1 = ON/normal command 2 = OFF/disabled 3 = OFF/VFD fault Exhaust Fan VFD Displays the status of the exhaust/ ExFanVFDFlt 29778 ExFanVFDFlt Fault return fan fault 0 = normal 1 = alarm Johnson Controls...
  • Page 112 A BAS command to enable morning MornW-En 29822 MornW-En Up Enabled warm-up 0 = NO 1 = YES A BAS command to enable Temporary TempOCC 29825 TempOCC temporary occupancy input Occupancy Input 0 = disable 1 = enable Johnson Controls...
  • Page 113 CF-1A 0 = OFF 1 = ON Condenser Fan Displays the command of condenser CF-1B 29936 CF-1B fan CF-1B 0 = OFF 1 = ON Condenser Fan Displays the command of condenser CF-2A 29937 CF-2A fan CF-2A 0 = OFF 1 = ON Johnson Controls...
  • Page 114 7 0 = OFF 1 = ON Displays the status of heating stage 7 0 = OFF/idle Heating Stage 7 H7-S 29990 H7-S 1 = ON/minimum runtime timer Status 2 = ON/normal command 3 = OFF/heating is disabled Johnson Controls...
  • Page 115 Reset 0 = OFF 1 = reset UV Light Needs Displays the UV light service alarm UVLight-Service 30039 UVLight-Service Service 0 = normal 1 = alarm Condensate Condensate 30062 COND-A Displays the condensate alarm fault Alarm Alarm Johnson Controls...
  • Page 116 SafetySetupNI 1 = Pressurize Network Input 2 = Depressurize 3 = Purge 4 = Shutdown MVCritical 30000 ActiveEvent MVCritical 29999 InactiveEvent MVServicePriority 29998 ActiveEvent MVServicePriority 29997 InactiveEvent MVService 29996 ActiveEvent MVService 29995 InactiveEvent NOTE: NA = Not Available Johnson Controls...

  • Page 117: Faults

    Outputs limited due to brownout input V Low voltage on 24 VAC OUTPUT terminal Critical Cooling locked out - condensate overflow Condensate drain is clogged Duct static pressure has exceeded Critical Unit locked out due to high duct static pressure setpoint Johnson Controls...
  • Page 118 Caused by low airflow, dirty filters, iced on ServicePriority C2B shutdown due to low pressure coil, low charge Caused by low airflow, dirty filters, iced on ServicePriority C2C shutdown due to low pressure coil, low charge Johnson Controls...
  • Page 119 Final filter pressure sensor failure or shorted circuit Sensor input out of expected range. Open Service Return air humidity sensor failure or shorted circuit Sensor input out of expected range. Open Service Heat entering temperature sensor failure or shorted circuit Johnson Controls...
  • Page 120 Expected DAT was not achieved due to Service DAT cannot reach cooling setpoint high EAT, lack of cooling capacity Expected DAT was not achieved due to Service DAT cannot reach heating setpoint low EAT, lack of heating capacity Johnson Controls...
  • Page 121 Air temperature at hot water heating coil is Service Hot water freezestat open to prevent coil freeze below setpoint Hot water heating coil freeze protection Service Hot water freezestat open when it should not circuit open with ambient sensor input above freezing Johnson Controls...
  • Page 122 Subject to change without notice. | Form 5586996-JSG-A-0120 | Supersedes: 5586996-JSG-A-1119 | All rights reserved. The Smart Equipment logo is a trademark of Johnson Controls in the United States and other countries. It is a part of the Johnson Controls product portfolio.

This manual is also suitable for:

Gvc seriesGvd seriesGvb series

Table of Contents