VZ7656F1000W Zigbee™ Wireless RTU Terminal Equipment Controller with Modulating Heat Installation Guide F o r C o m m e r c i a l Z o n i n g S ys t e m s th January 10 , 2012 / 028-0325-R1 CONTENTS Installation Location Installation Theory of Operation Features overview Wireless System Overview Terminal, Identification and Function Wiring Screw terminal arrangement and wiring Typical Applications Main outputs wiring Remote sensor accessories Configuring and Status Display Instructions Status display Use
I NSTALLATION Remove the security screw on the bottom of Terminal Equipment Controller cover. Open unit by pulling on the bottom side of Terminal Equipment Controller (fig. 1). Remove wiring terminals from sticker. Please read the FCC ID and IC label installed in the cover upon removal of cover for the wireless products. Location 1. Should not be installed on an outside wall. 2. Must be installed away from any direct heat source. 3. Should not be installed near an air discharge grill. 4.
10. Insert each wire according to wiring diagram. 11. Gently push excess wiring back into hole (fig. 3). 12. Re-Install wiring terminals in their correct locations (fig. 3). 13. Re-install the cover (top side first) and gently push extra wire length back into the hole in the wall. 14. Install security screw. When replacing an existing Terminal Equipment Controller, label the wires before removal of the Terminal Equipment Controller. Electronic controls are static sensitive devices.
Remote discharge air sensor input for monitoring and control purpose. System efficiency feedback. Discharge high limit heating lockout. Discharge low limit cooling lockout. Minimum supply air temperature. Remote return air sensor input for monitoring control. System efficiency feedback. Return high limit heating lockout. Return low limit cooling lockout. Communication lost control function. Password protected configuration menu and lockable keypads for security.
WIRELESS SYSTEM OVERVIEW Viconics VZ7260x5x00W Zone controllers are used in conjunction with the VZ7656F1000W roof top controllers. Combined, they are designed for operating typical; single or multistage RTU’s and their associated local zones. For example, a typical job layout system may feature 3 RTU controllers and a total of 31 zones. This would bring to total number of nodes (individual Com addresses) to 34.
TERMINAL , IDENTIFICATION AND FUNCTION Wiring Terminal Use Terminal Identification Description 1 – Cool 2 Y2 Output for cooling / compressor stage number 2. 2 – Cool 1 Y1 Output for cooling / compressor stage number 1. 3 - Fan G Output for the fan. 4 - 24 V ~ Hot RC 5 - 0 V ~ Com C 7 – Not Used Not Used 8- Auxiliary Output 9 – By-pass damper Power supply of controller, hot side (Delivered from the RTU). Power supply of controller, common side.
Screw terminal arrangement and wiring VZ7656F Controller Terminals Y2 Y1 G RC C Aux BPD AO SP DI1 RS SCom OS DS TYPICAL APPLICATIONS Main outputs wiring Wiring notes: Note 1: If auxiliary output is used to toggle occupancy of the electronic control card inside the equipment, configure the relay parameter (Aux cont) to the N.O. setting. A second relay can be added for additional functionality of the occupancy output. Note 2: Analog outputs and inputs use a half bridge rectifier.
Remote sensor accessories Model no. S2020E1000 S2060A1000 S2000D1000 Description Outdoor temperature sensor Averaging temperature sensor Duct mounted temperature sensor Remote mount temperature sensors use 10K NTC thermistor. Temperature vs. Resistance Chart for 10 Kohm NTC Thermistor ºC ºF Kohm (R25°C = 10K±3% - B25/85°C = 3975K±1.5%) ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm -40 -40 324.3197 -20 -4 94.5149 0 32 32.1910 20 68 12.4601 40 104 5.3467 -39 -38 303.6427 -19 -2 89.
S2020E1000; outdoor air temperature sensor This sensor can be used for: Outside air temperature sensing with the sensor installed directly exposed to the elements. Sensor uses a water resistant NEMA 4 ABS enclosure for outdoor applications.
Sequence of auto-scroll status display: CLOCK STATUS SYSTEM MODE SCHEDULE STATUS OUTDOOR TEMPERATURE ALARMS Monday 12:00 AM Sys mode auto Occupied Outdoor x.x °C or°F Service Sys mode off Sys mode heat Sys mode cool Occupied hold Unoccup DAS Alarm SetClock Filter Com Lost Outdoor air temperature Outdoor air temperature display is only enabled when outdoor air temperature sensor is connected. A maximum range status display of 50 °C ( 122 °F ) indicates a shorted sensor.
Current Zone Sequence Return Air Temperature Zone Seq Off Zone Seq Cool Zone Seq Heat RA Temp xx.x °C or °F Effective PI Heat Demand at RTU Heat Out xxx % Service DAS Alarm SetClock Filter Com Lost Effective PI Cool Demand at RTU Cool Out xxx % Discharge Air Temperature DA Temp xx.x °C or °F Highest PI Heat Demand Zone Address Heat MAC xxx Current Static Pressure Pressure x.
If the user pauses at any given time during configuring, Auto Help text is displayed to help and guide the user through the usage and configuring of the controller. Ex.: Press yes key to change cooling temperature setpoint Use the up or down arrow to adjust cooling setpoint Each of the sections in the menu is accessed and configured using 5 keys on the controller cover.
A) Override an unoccupied period Override schd Y/N This menu will appear only when the controller is in unoccupied mode. The unoccupied mode is enabled either by the internal timer scheduling or by a network unoccupied command on the occupancy object. If DI1 is configured to operate as a remote temporary override contact, this menu will be disabled.
C) Schedule set (2 events) Scheduling can have 2 or 4 events per day. This is set in the configuration menu as per parameter; (2/4event). Schedule set Y/N This section of the menu permits the user to set the weekly schedule for all the zones attached to the RTU controller. Each day can be tailored to specific schedules if needed. 2 events can be configured per day. Occupied & unoccupied periods can be set for each day.
Ex. #2 Commercial building which is occupied all weekend Event Period #1 - Event Period #1 - Event #1 #2 Occupancy Occupied Unoccupied Daily Occupancy Monday 8.00 AM 5.00 PM Day time only Tuesday 8.00 AM 5.00 PM Day time only Wednesday 8.00 AM 5.00 PM Day time only Thursday 8.00 AM 5.00 PM Day time only Friday 8.00 AM 5.00 PM Day time only Saturday 12.00 AM ** 11.59 PM ** Occupied Sunday 12.00 AM ** 11.
Ex. #1. Four event retail establishment schedule Monday Tuesday Wednesday Period 1 Event 1 Occupied Cool Heat 72°F 70°F 7.00 AM 7.00 AM 7.00 AM Period 1 Event 2 Unoccupied Cool Heat 80°F 62°F 5.00 PM 5.00 PM 5.00 PM Period 2 Event 3 Occupied Cool Heat 72°F 70 °F 12.00 PM * 12.00 PM * 12.00 PM * Period 2 Event 4 Unoccupied Cool Heat 80°F 62 °F 12.00 PM * 12.00 PM * 12.00 PM * Thursday 7.00 AM 5.00 PM 7.00 PM 10.30 PM Friday 7.00 AM 5.00 PM 7.00 PM 10.30 PM Saturday Sunday 12.00 PM * 12.
Configuration Parameters Default Value PswrdSet Configuration parameters menu access password Default value = 0 No password prompted RTC MAC Zone Controller Controller network address Default Value: 4 PAN ID Personal Area Network Identification Default value = 0 Range is: 0 to 500 Significance and Adjustments This parameter sets a password access to prevent unauthorized access to the configuration menu parameters.
When PAN ID is used with a range of 251 to 500, for (SA) Stand-Alone Systems In this application, the VZ76 controller(s) are the coordinators to their own system. I.E. they are the network masters for each VZ72 controller reporting to them. Wireless controller factory default Channel & PAN ID = Controller(s) offline VZ76 RTU controller is the network coordinator. Range of PAN ID on all controllers to use 251 to 500. This range is reserved for stand-alone system operation.
When PAN ID is used with a range of 1 to 250, for (NS) Networked Systems In this application, any controller(s) are simply router to the system. The VWG / JaceDriver is the coordinators to the system. I.E. the VWG / Jace-Driver is the network masters for ANY controller(s) reporting to them. Wireless controller factory default Channel & PAN ID = Controller(s) offline VWG Jace-Driver is the network coordinator Any controllers ( VZ72’s, VZ76xx RTU’s or any VT7xxx wireless controllers ) act as routers.
Channel Channel selection Default value = 10 Range is: 10 to 26 This parameter (Channel) is used to link specific controllers to specific Viconics wireless gateway(s) (VWG / Jace-Driver) or to the main VZ76xx RTU controller. For any system, be sure you set the SAME channel value both at the network coordinator and on all the VZ72xx controller(s). Viconics recommends using only the following channels: 15, 25 & 26. The default value of 10 is NOT a valid channel.
CntrlTyp Sets how the Zones attached to the RTU controller vote to determine the actual system mode of operation. (Heat or Cool) Default Value: 1 = AV_H3 This parameter will select the type of operation required for the RTU based on the size of the system. Please refer to the Viconics Zoning System Guide for recommended settings. Only the Zones that actually have values above 0% in their (PIHT Wei & PICL Wei) configuration parameters will be able to vote on the RTU operational mode calculation.
Min SH Sets the minimum supply heat to be maintained by the Minimum supply heat controller during occupied periods (Occupied or temperature setpoint Temporary Override). Default value = 64 °F 50 °F to 72 °F (10 °C up to 22 °C) (18 °C) (increments: 0.
DI 1 Digital input 1 configuration Default value = None Open contact input = function not energized. Closed contact input = function energized. None: No function will be associated with the input. Rem NSB, remote NSB timer clock input. Will disable the internal scheduling of the controller. The scheduling will now be set as per the digital input. The time is still displayed as information, but the menu part related to scheduling is disabled and no longer accessible.
SH lock Disables heating operation based on outdoor air Outside air temperature temperature. supply heat lockout Please refer to the Viconics Zoning System Guide for Default value = 32 °F recommended settings. (0 °C) From –15 °F up to 120 °F (-26 °C up to 49 °C) (increments: 5° or 50°) C stage Will revert the operation of 2 stage controllers to a single VZ7656R1000B models only stage when the second cooling step is not needed. 1 or 2 stages Number of cooling stages installed at RTU.
Aux cont Auxiliairy contact configuration Default value = N.O. normally open This contact can be used to energize peripheral devices such as: lighting equipment, exhaust fans, economizers, etc. This contact will operate in parallel with the internal occupied/unoccupied schedule of the Terminal Equipment Controller or the remote NSB contact if DI1 or DI2 is used. When the system is in OFF mode, the contact will remain in its unoccupied status independently of the occupied / unoccupied schedule.
Unocc HT If network communication is lost with the zone controllers, the Return air sensor network return air sensor will control the RTC to maintain this setpoint. lost unoccupied heating setpoint 40 to 90°F (4.5°C to 32°C) (increments: 0.5° or 5°) Default: 65°F Sp range Static Pressure sensor range Default: 0 Pressure Static Pressure setpoint Default: 0.8”WC Static pressure transducer range. Voltage input range is 0 to 5 VDC. 0 = 0 to 1.
S PECIFICATIONS Terminal Equipment Controller power requirements: Operating conditions: Storage conditions: Sensor: Resolution: Temperature control accuracy: Contact output rating Occ, Stand-By and Unocc cooling setpoint range: Occ, Stand-By and Unocc heating setpoint range: Room and outdoor air temperature display range: Digital inputs: Analog outputs rating (BPD & AO) Analog outputs accuracy (BPD & AO) Wire gauge: Approximate shipping weight: Agency Approvals all models: Agency Approvals all models: Age
DRAWING & DIMENSIONS Viconics Technologies Inc. Tel.: 28 | VZ7656F1000W Installation Guide Fax: Toll free: www.viconics.
