Trane ZN510 Controller user manual

User manual for the device Trane ZN510 Controller

Device: Trane ZN510 Controller
Category: Video Game Controller
Manufacturer: Trane
Size: 1.87 MB
Added : 7/3/2013
Number of pages: 32
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Summary of the content on the page No. 1

WSHP-IOP-2
May 1998
Installation, Operation,
and Programming
Tracer™ ZN510 Controller

Summary of the content on the page No. 2

Literature History The Trane Company has a policy of continuous product improvement and it reserves the right to change specifications and design without notice. Installation, Operation, WSHP-IOP-2 and Programming Library Service Literature Product Section Unitary Product Water-Source Heat Pumps Model 000 Installation, Operation, Literature Type and Programming Sequence 1 Date April 1998 File No. SL-UN-000-WSHP-IOP-2-0498 Supersedes New Related Literature WMCA-PD-1 ZN510 Loop Con- WMCA-IOP-1

Summary of the content on the page No. 3

Table of Contents Start-up Procedure 4 Power-up Sequence 5 Unit Identification Tag 6 Unit Operation 7 General Information 7 Communication 7 Power 8 Binary Outputs 8 Analog Outputs 9 Binary Inputs 9 Analog Inputs 12 Zone Sensors 15 Heating or Cooling Control 18 Mode Operation Single or Dual Compressor 19 Operation Data Sharing 20 Configuration 21 Troubleshooting 22 Diagnostics 27 ZN510 Controller Replacement 28 Wiring Diagram 29 Hardware Specifications 31 Appendix 33

Summary of the content on the page No. 4

Start-up Procedure Installation of New Units 5. Verify that water connections 1. Follow all instruction for have been made to unit, then installation of water source ensure that water is circulating heat pumps as detailed in the through the unit. IOM (Installation Operation Maintenance manual). 6. Reapply power. 2. Disconnect power or disable 7. Check for STATUS GREEN LED the circuit breaker to unit. operation to ensure power and communication has been made ™ 3. Run communication link wi

Summary of the content on the page No. 5

Power Up Sequence Power Up Sequence 3. A random start time is hard When 24 VAC power initially is coded on every board and applied to the ZN510 controller, the cannot be disabled. The board following sequence occurs: generates a random time delay between 0 and 25 seconds. 1. All outputs are controlled off. Once this time expires, the power up control wait time (if 2. The controller reads all inputs configured) will wait for 120 seconds. The power up control to determine their initial

Summary of the content on the page No. 6

Unit Identification Tag Unit Identification Tag The unit identification tag is factory mounted and provided for easy identification of an installed unit. It contains model number, tagging, and location information. See Figure 1. The top portion of the unit identification tag remains permanently affixed to the unit for identity purposes. The bottom portion of the tag provides pertinent information that is removable to be placed on building plans or in the ZN510 IOP on page 33. This pro

Summary of the content on the page No. 7

Unit Operation General Information Console water source heat Up to two compressors. The ZN510 controller is a pumps. Reversing valve. microprocessor-based direct digital ZN510 is designed to provide 2-position outdoor air damper controller that controls a variety of accurate and reliable zone or generic binary output. water source heat pump equipment temperature control by using Peer-to-peer communication across including: custom proportional integral (PI) controllers is possible ev

Summary of the content on the page No. 8

Unit Operation Power Factory Supplied Transformer The ZN510 controller is powered by 24 VAC. A total of two 1/4-inch quick- Line Voltage connect terminals are provided for 24 VAC connection to the board. See 24VAC Figure 4 for ZN510 power requirement. Note: Power for field installed ancil- lary devices is not available from the board. It must be tapped at trans- former. See Table 21 for excess power available. Figure 4: Power Connections Binary Outputs The ZN510 uses five of its binary out

Summary of the content on the page No. 9

Unit Operation Output Overrides Force compressor operation, manual output test. See The ZN510 controller includes a allowing the technician to use Troubleshooting section for Green manual output test function. Use this refrigerant gauges or other test LED and Testing Heat Pump feature to manually exercise the equipment to verify unit Configurations on page 21 & 22. outputs in a defined sequence. The operation. purpose of the test sequence, is to The test sequence resets unit verify output

Summary of the content on the page No. 10

Unit Operation Low Temperature Detection temperature condition exists for that outdoor air damper also operates The low temperature detection circuit. normally. diagnostic protects the heat exchanger by using an analog For two compressor units, the All unit operation is disabled when leaving water temperature sensor to controller responds to low the heat pump shuts down both protect refrigerant circuit 1 and a temperature detection by allowing circuits, due to low temperature binary low tem

Summary of the content on the page No. 11

Unit Operation In Occupied mode, the controller operates according to the controller defaults to occupied operates according to the occupied unoccupied setpoints regardless of mode because the occupancy binary setpoints. In Occupied Standby the state of the hardwired input (if present) typically is Mode, the unit controller operates occupancy input. configured as normally open according to the Occupied Standby without an occupancy device setpoints. When the controller If neither the binary

Summary of the content on the page No. 12

Unit Operation 24 VAC Compr 2 Compr 1 HPC LPC Binary Outputs Figure 7: High and low pressure switch Note: The ZN510 controller includes an automatic diag- 12 3 4 5 6 7 nostic reset function that allows the controller to automatically recover after a high or low pres- sure cutout diagnostic. After 30 minutes the con- troller will reset the diagnostics. Most diagnostics occur due to intermittent water tem- perature or flow problem. The “smart reset” may eliminate many service calls. Analog Inpu

Summary of the content on the page No. 13

Unit Operation Space Temperature pressed, the zone sensor sends a space temperature, the active ZN510 controls the space signal to the controller. This signal is setpoint, and the proportional/ temperature according to the active then interpreted as a timed override integral control algorithm, space temperature, the active cancel which places the unit into regardless of the presence of a heating/cooling setpoint, and the unoccupied. hardwired or communicated space temperature control setpoin

Summary of the content on the page No. 14

Unit Operation Leaving Water Temperature See the Diagnostics section on page ZN510 uses analog input 1 (AI 1) as 28 for information about the the leaving water temperature input automatic diagnostic reset function. Possible Heat Pump for use with a thermistor. This input Fan Modes (1-speed) (AI 1) is automatically assigned as a Filter Maintenance Timer leaving water temperature input. As The controller’s filter maintenance OFF Fan Off explained in the binary input timer is based on the unit

Summary of the content on the page No. 15

Zone Sensor Zone Sensor values exist, the controller ignores (when present) is exposed on the The ZN510 controller accepts the the hardwired space temperature zone sensor’s front cover. following zone sensor inputs: input and uses the communicated value. When the hardwired setpoint Space temperature mea- adjustment is used to determine the surement. Internal and External Setpoint setpoints, all unit setpoints are Adjustment calculated based on the hardwired Local setpoint (internal or Z

Summary of the content on the page No. 16

Zone Sensor Zone Sensor Features during unoccupied mode places the controller). By accessing the Fan Switch (Optional) controller in occupied bypass mode communication jack via Rover, The zone sensor fan switch provides for 120 minutes. You can adjust the entrance to all controllers on the link the controller with an occupied (and number of minutes in the unit may be gained. occupied standby) fan request signal controller configuration using of OFF or AUTO. If the fan control Trane’s servic

Summary of the content on the page No. 17

Zone Sensor Specifications Part Number: X13510606020 Description: Space temperature (0.2 C resolution). External setpoint. ON and CANCEL buttons. Communication jack. Vertical case with Trane logo. Part Number: X13510635010 Description: Space temperature (0.2 C resolution). External setpoint. ON Fan Switch (OFF and AUTO). ON and CANCEL buttons. Communication jack. Vertical case with Trane logo. 17

Summary of the content on the page No. 18

Heating or Cooling Control Mode Operation Heating or Cooling unit capacity and pulse width controlling only the first Operation modulation (PWM) logic along with compressor, the controller runs For both single and dual compressor minimum on/off timers to determine compressor 1 continuously and operation, the ZN510 controller the operation for compressor 1. controls compressor 2 according to cycles the compressor(s) on and off PWM logic along with the minimum to meet heating or cooling zone

Summary of the content on the page No. 19

Single and Dual Compressor Operation Other Modes controller interprets the request and damper normally is open during the Occupancy Operation initiates the occupied setpoint occupied mode when the controller Unoccupied operation normally is operation. During a timed override, turns on the unit fan. The damper is associated with evening hours when the controller applies the occupied normally closed during: the space is vacant. In unoccupied heating and cooling setpoint, but mode, the control

Summary of the content on the page No. 20

BINARY INPUTS Data Sharing Master Controller ZN510 can send or receive data Master Controller (such as setpoint, heat/cool mode, fan request and space temperature) to and from other controllers on the communication link, with or without ON a building automation system. This CANCEL includes applications where multiple unit controllers share a common space temperature sensor, Zone Sensor both for standalone and building automation applications. Communication Link The master controller (th


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