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Summary of Contents for Johnson Controls York YVAG
- Page 1 YVAG Air-Cooled Chiller and Heat Pump Wired Controller Guide 50 Hz, 12 kW to 18 kW, YVAG 012 to 018 Operation Guide Form: 201.46-O2.EN.CE (520) Issue Date: 2020-05-12 Supersedes: 201.46-O2.EN.CE (919)
- Page 2 YVAG Air-Cooled Chiller and Heat Pump Wired Controller Guide...
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Page 3: Table Of Contents
Contents General safety guidelines..........................5 Safety symbols............................. 5 Changeability of this document......................6 Revision notes............................6 Safety and security considerations......................7 Installation............................7 Operation.............................. 7 Cleaning..............................7 System description............................8 Controller unit connection......................... 8 Working conditions and related standards for the control system..........8 Electrical part description.......................... - Page 4 Low sound mode..........................26 Manual defrost function........................27 YVAG Air-Cooled Chiller and Heat Pump Wired Controller Guide...
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Page 5: General Safety Guidelines
General safety guidelines Important: Read before proceeding This equipment is a relatively complicated apparatus. During rigging, installation, operation, maintenance, or service, individuals may be exposed to certain components or conditions including, but not limited to: heavy objects, refrigerants, materials under pressure, rotating components, and both high and low voltage. -
Page 6: Changeability Of This Document
All wiring must be in accordance with Johnson Controls’ published specifications and must be performed only by a qualified electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. -
Page 7: Safety And Security Considerations
Safety and security considerations The following symbols are used in this document: WARNING The user must comply with this content to avoid bodily injury. Note: The user must comply with this content to avoid damage to parts of the product. Installation Note: After reading, keep this manual for future reference. -
Page 8: System Description
System description The YVAG wired controller system displays operating conditions, parameters, and fault information for the unit. You can also use the controller for setting parameters, and for recording and checking fault information. Controller unit connection The following figure shows the connection between the controller and the unit: Figure 1: Controller-Unit Connection Description Controller... -
Page 9: Electrical Part Description
Electrical part description • Specifications: Mainboard supplies DC 12 V RS485 interface Touch key interface • Refer to the Touch Screen Hardware Specification for details further in this manual and also in the ICOM and Master ICOM documents. • Software download function. •... -
Page 10: Port Location
Port location The following figure illustrates the location of the power and communication port within the wired controller: Figure 3: Location of the port Description Power and communication port Dial switch Power and Communication Port Figure 4: Power and Communication Port Table 2: Power and Communication Port JP4_1 JP4_2 JP4_3... -
Page 11: Appearance And Wiring Instructions
Appearance and wiring instructions You can use the controller to turn on or turn off the unit using the mechanical key. The other keys on the controller are touch keys. See the following figures for details: Figure 5: Appearance Wiring instructions The following diagram illustrates the wiring connections from the wired controller to the microboard of master unit number 1. -
Page 12: Function And Operation Instructions
Function and operation instructions Display key legend Use the following legend as a reference for user instructions in this manual: Table 3: Display key legend Description Description Description Cooling Function Fault Heating Timer Pump Confirm Lock Cancel Down Low Sound YVAG Air-Cooled Chiller and Heat Pump Wired Controller Guide... -
Page 13: Powering On The Controller
Powering on the controller Press the Power button below the screen. The controller connects with the unit. If the unit does not connect after 60 seconds, a communication fault occurs. The following actions occur during initialization: a. The buzzer sounds after 100 milliseconds. b. -
Page 14: Display Status
Display Status Daily display status Figure 7: Display style Table 4: Daily display areas Display content Display area Power on Power off Time display 24 hour real time clock, 2000-01-01 0:00, day of the week indicator. This icon indicates that the schedule is enabled and also shows the Timer display timer mode: once, daily, or weekly. -
Page 15: Entering The Alarm Status Display
Table 4: Daily display areas Display content Display area Power on Power off Operation mode no display The display shows the running mode of the unit. display From left to right, the following information is displayed: Sleep mode: This icon indicates that sleep mode is enabled, or night mode is enabled. -
Page 16: Touch Keys
Touch keys You can use the touch keys only when the keylock is released. To use the touch key press down on the key and release to enable the backlight. When the backlight is on, the touch keys are enabled. Buzzer If the controller is powered on, the buzzer sounds for 100 milliseconds. -
Page 17: Function
Function Basic function The following table describes the basic functions of the wired controller. See Table 3 for the Display Key Legend. Table 6: Basic function Function Operation Instruction Power on and off Press the mechanical key to power on and off the unit. Press the cooling key. -
Page 18: Setting The Clock
Setting the clock Figure 9: Setting the clock In the daily display, hold down the timer key (A) and the function key (B) for 5 seconds. The SET icon appears and the clock icon and year indicator flashes. Use the timer key (B) to adjust the year, month, day, hour, and minute. a. -
Page 19: Setting The Timer
Setting the timer Figure 10: Setting the timer In the daily display, hold down the timer key (A) for 5 seconds. The SET icon appears and the clock icon and hour indicator flash. The hour and minute show the previous setting. Use the function key (B) to adjust the hour and minute. -
Page 20: Setting The Parameters
Setting the parameters Figure 11: Setting the parameters Hold down the function key (A) for 5 seconds to enter the module parameter setting screen. The lock icon appears and the clock icon and running mode exits. a. The temperature display shows the item number and the clock displays the value of the item. -
Page 21: Module Parameters
Table 8: System parameters Item Setting Introductions Default Comments range Low leaving water temperature alarm 2.0-12 °C High leaving water temperature alarm 30-55 °C Defrost temperature (ambient -10-0 °C temperature <0°C) Defrost temperature (ambient -10-0 °C temperature ≥0°C) Defrost time limit 180-600 seconds Defrost interval... -
Page 22: Accessing The Fault Query Function
Accessing the fault query function Figure 12: Accessing the fault query function In the daily display, hold down the function key (A) and the cancel key (B) for 5 seconds. The fault icon displays. In the external code display, the first indicator displays the module number, and the second indicator displays the fault number: (0-9), A (10), b (11), c (12), d (13), E (14), F (15). -
Page 23: Fault Codes
Figure 13: Location of Fault Information on Daily Display Table 11: Location of Fault Information on Daily Display Description Fault code Module number Fault number Time of fault Running mode during fault Running status during fault Fault codes The following table lists the fault codes that appear on the display screen and their respective descripions. - Page 24 Table 12: Fault Codes Fault code Description Chiller low leaving temperature in cooling Chiller high leaving temperature in heating Communication failure between unit and BAS Freeze protection in winter Unit low leaving water temperature in cooling mode Unit High leaving water temperature in heating mode Unit Low leaving water temperature in heating mode High discharge temperature Freezing protection of BPHE...
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Page 25: Accessing The Running Status Query Function
Accessing the running status query function Figure 14: Accessing the running status query function In the daily display, hold down the function key and the confirm key (A) for 5 seconds to enter the running status query display. Change the module number from 1 to 4 by pressing the timer key (B). Use the up and down keys to change the item number of every module. -
Page 26: Running Status
Running status The following table lists the running status numbers that appear on the display screen and their respective descripions. Table 14: Running Status Key Running status Description number Refrigerant temperature inlet accumulator Saturated temperature of suction pressure Discharge temperature Ambient temperature Modular common leaving water temperature System return water temperature... - Page 27 Night low sound mode Press the down key, then hold down the function key and confirm key for 5 seconds to enable or disable this function. The night low sound mode reduces the noise of the unit from 21:00 to 06:00 when you enable it. Note: Only one of these functions can be enabled at a time.
- Page 28 © 2020 Johnson Controls. 5000 Renaissance Drive, New Freedom, York, PA 17349, USA. Subject to change without notice. All rights reserved...
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