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34

Controller User Manual

Figure 58

The Unit Activation Selection Screen.

The EVAPCO Controller contains an internal buzzer that will sound in the event of an error or alarm. The buzzer may be activated

via the screen shown in Figure 59.

Manual Management allows several operations of the EVAPCO Controller to be manually triggered or controlled. Note that while

being controlled manually, the EVAPCO Controller will not have the ability to maintain a specific process setpoint. The Analog

Output of Fans Screen allows the fan speed to be manually adjusted to any speed between 0% and 100% once the Manual

Management function is enabled.

Allows the eco-Air unit to be activated via a digital input.
Allows the eco-Air unit to be activated via a BAS.

No
No

Parameter

Description

Default

Table 22

The eco-Air unit activation parameters.

Digital Input

Supervisor

Allows the buzzer to sound in the event of an alarm or error.

Yes (Buzzer Off)

Parameter

Description

Default

Table 23

The buzzer configuration parameters.

Disable Buzzer

Figure 59

The Buzzer Configuration Screen.

Summary of Contents for Eco-Air

Page 1: ...l lvaro Obreg n Ciudad de M xico D F M xico 01090 Phone 52 55 8421 9260 e mail info evapco blct com Refrigeration Valves Systems Corporation A wholly owned subsidiary of EVAPCO Inc Bryan TX USA 979 77...

Page 2: ...cing 6 Screen Navigation 7 Navigating the Display 7 Modifying a Value 8 Navigating the Scheduler 9 Operator Interface Screens 13 Welcome Screen 13 Standby Status Screens 13 Alarms Screen 16 Main Menu...

Page 3: ...d require any additional information about the operation or maintenance of this equipment contact your local EVAPCO representative You may also visit www evapco com for more information Installation a...

Page 4: ...n electrical disconnect for the eco Air unit Otherwise separate electrical disconnects may be required Consult applicable electrical codes to make this determination Avoid mounting the EVAPCO Controll...

Page 5: ...d temperature or pressure sensor must be wired to the EVAPCO Controller Consult the supplied wiring diagram for a determination if the junction box is supplied Each EVAPCO Controller is supplied with...

Page 6: ...ch position is as follows Auto The Auto position allows the EVAPCO Controller to operate the eco Air unit based on the logic programmed into the Controller Note that the unit must be switched on befor...

Page 7: ...NT button Goes to the selected submenu or accepts a modified value DOWN button Scrolls down in the menu or changes a value Screen Navigation Navigating the Display The operator interface contains a LE...

Page 8: ...Alarms Screen Standby Screen Standby Status Screens Main Menu Screens A On Off Unit B View Setpoints C Clock Scheduler D Input Output E Error Log F Board Switch G Service H Manufacturer Figure 5 Cont...

Page 9: ...screen Figure 8 The cursor is located in the top left of the screen Navigating the Scheduler Several functions of the EVAPCO Controller are able to be scheduled to operate during certain periods of th...

Page 10: ...et Mode during the selected period of time The selected block will become raised indicating that the Quiet Mode will be active Press the ENT button to move to the next half hour period 12 30am to 1 00...

Page 11: ...ENT button After a few seconds the YES will change back to a NO indicating that the copy was successful Place the cursor next to the text that says MON Press the UP or DOWN button to change the day to...

Page 12: ...User Manual Repeat the steps above until the desired scheduled is set Below is what the schedule of each day of the week should be for this example Figure 16 The Quiet Mode weekly schedule for the pre...

Page 13: ...atus Screens are read only To view additional status screens use the UP or DOWN buttons located on the operator interface The Standby Screen shown in Figure 18 displays the process temperature ambient...

Page 14: ...on to go directly to the Alarms Screen When the eco Air unit is equipped with EC fan motors the status and current speed of the fan motors may be viewed by pressing the DOWN button Figure 19 Standby S...

Page 15: ...ined value the pre cooling system will activate Conversely if the process temperature falls below the process setpoint while the pre cooling system is active the decrease timer will begin to count up...

Page 16: ...pre cooling system is activated stage two will be activated first followed by stage one Figure 26 Press the ENT button at this screen to view the alarm log All alarms are logged and are viewable by p...

Page 17: ...co Air unit When the eco Air unit is not controlled via an external source i e BAS the On Off Unit Screen is the only way to disable the eco Air unit without removing power Note that the EVAPCO Contro...

Page 18: ...s that may have been sucked onto the adiabatic pads during unit operation Routine Function Example Use Table 5 The various functions that may be scheduled hourly Quiet Mode Setpoint 2 Flush For instru...

Page 19: ...time that the fans run in reverse during the flushing routine The fan speed reverse during the dry cycle of the flushing routine 0 minutes 0 minutes 0 Parameter Description Default Table 6 The flushin...

Page 20: ...to ensure proper time keeping the daylight savings adjustment must be accurate Any adjustments to the daylight savings transition parameters may be done on the screen shown in Figure 33 Input Output S...

Page 21: ...e alarm identifier number the alarm number in the log the date of the alarm and the time of the alarm For instructions on how to clear the alarm log please see the Alarms Screen section of this docume...

Page 22: ...1 in the first position Next press the ENT button to move to the second position If incorrect password is entered the screen shown in Figure 37 is displayed Figure 37 The message displayed when an in...

Page 23: ...nit to be adjusted The screen shown in Figure 41 allows the process sensor to be changed Note that the proper sensor type and associated settings will be set at the factory and should not require modi...

Page 24: ...et as temperature in this example The screen shown in Figure 42 allows the user to determine if the process sensor is measuring a temperature value or a pressure value Note that this setting will be s...

Page 25: ...stom refrigerant is required the temperature and pressure parameters may be entered on the screen shown in Figure 44 The seven data points describe the characteristics of the desired refrigerant and a...

Page 26: ...Regulator Parameters Screen The screen shown in Figure 47 is only visible if the P regulator is chosen Controls the fan speed by subtracting the process temperature from the setpoint temperature and l...

Page 27: ...e Setpoint 1 Temperature Regulation Band Minimum Fan Speed Maximum Fan Speed The primary process setpoint The secondary process setpoint that may be activated via the scheduler ambient temperature or...

Page 28: ...ipped with a pre cooling system The energy saving fan speed allows the pre cooling system to activate once the fan speed reaches the energy saving value Once the pre cooling system is activated the fa...

Page 29: ...g is not required Table 15 The stage switch point parameters The maximum speed that the fan motors will reach when Quiet Mode is not active The maximum fan motor speed allowed when Quiet Mode is activ...

Page 30: ...oling system to be active If the ambient temperature falls below the minimum specified temperature the pre cooling system will deactivate and will not become active again until the ambient temperature...

Page 31: ...m minimum operating ambient temperatures Setpoint Difference The following feature is only applicable for eco Air units that are equipped with EC fan motors In the event that the EC fan motors lose co...

Page 32: ...active when the ambient temperature is 60 0 F with a differential temperature of 1 0 F Until the ambient temperature reaches 61 0 F the ambient setpoint plus the differential the primary setpoint will...

Page 33: ...the building management method of control are desired to be utilized By default the EVAPCO Controller will be set to local control via the operator interface Note that is possible to use a building ma...

Page 34: ...lity to maintain a specific process setpoint The Analog Output of Fans Screen allows the fan speed to be manually adjusted to any speed between 0 and 100 once the Manual Management function is enabled...

Page 35: ...gic such as minimum ambient temperature and minimum on time once activated Enables or disables the manual fan speed The manual fan speed setpoint Disable 0 Manual Management Manual Speed Description D...

Page 36: ...Manual Overrides Screen Figure 63 The Modbus Parameter Configuration Screen Within the service settings submenu there are several screens that allow for the adjustment of the working hours and sensor...

Page 37: ...ith a linear offset if required via the screen shown in Figure 65 Figure 64 The Working Hours Set Screen Figure 65 The Probe Adjustment Screen The error log shown in Figure 35 may be cleared via the s...

Page 38: ...rd shown on the screen is the current password The information screens display contain version details about the program loaded into the EVAPCO Controller and about the EVAPCO Controller itself This i...

Page 39: ...needs to be replaced Use the UP or DOWN buttons to navigate between the different fan addresses Next set the current address to 1 and set change now to YES After a several minutes several messages wi...

Page 40: ...troller User Manual Manufacturer Screens The Manufacturer Screens are for use by EVAPCO authorized factory technicians to configure the EVAPCO Controller Figure 72 The manufacturer menu within the mai...

Page 41: ...sed in industrial control systems By adjusting control outputs a PID controller attempts to minimize the difference between a measured process variable and a desired setpoint PLC Programmable Logic Co...

Page 42: ...ble to communicate with EC fan motor 8 The controller is unable to communicate with EC fan motor 9 The controller is unable to communicate with EC fan motor 10 The controller is unable to communicate...

Page 43: ...43 Controller User Manual Notes...

Page 44: ...EVAPCO Inc P O Box 1300 Westminster MD 21158 USA PHONE 410 756 2600 FAX 410 756 6450 E MAIL marketing evapco com 2018 EVAPCO Inc for LIFE Printed on recycled paper using soy based ink...

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