1 | PIR Ready VT7600 Series-Installation Guide C ONTENTS Installation 2 Location 2 Installation 2 Theory of operation 3 Features overview 3 Heat pump model specific features 4 Model Chart 5 Network ready 6 Terminal, Identification and Function 6 Wiring 6 Screw terminal arrangement 7 Main outputs wiring 7 Typical applications 8 Remote sensor accessories 9 Configuring and Status Display Instructions 13 Status display 13 User Interface 14 User configuring instructions menu 14 Local keypad interface 15 Occupied setpoints adjustments 16 Installer Configuration Parameter Menu 23 Troubleshooting guide 35 All models 35 Heat pump models 36 Specifications 38 Drawing & Dimensions 39 PIR Ready VT7600 Series With & Without Local Schedule Terminal Equipment Controllers Installation Guide For Commercial HVAC Applications November 04 th , 2011 / 028-0228-R5 2 | PIR Ready VT7600 Series-Installation Guide 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. Should not be affected by direct sun radiation. 5. Nothing should restrict vertical air circulation to the Terminal Equipment Controller. Installation 1. Swing open the Terminal Equipment Controller PCB to the left by pressing the PCB locking tabs (fig. 2). 2. Pull out cables 6” out from the wall. 3. Wall surface must be flat and clean. 4. Insert cable in the central hole of the base. 5. Align the base and mark the location of the two mounting holes on the wall. Install proper side of base up. 6. Install anchors in the wall. 7. Insert screws in mounting holes on each side of the base (fig. 2). 8. Gently swing back the circuit board on the base and push on it until the tabs lock it. 9. Strip each wire 1/4 inch from end. 10. Insert each wire according to wiring diagram. 3 | PIR Ready VT7600 Series-Installation Guide 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. T HEORY OF OPERATION The VT7600 uses a Viconics proprietary adaptive logic algorithm to control the space temperature. This algorithm controls the heating / air conditioning system to minimize overshoot while still providing comfort. It provides exceptional accuracy due to its unique PI time proportioning control algorithm, which virtually eliminates temperature offset associated with traditional, differential-based on/off Terminal Equipment Controllers. Fig.2 - On/Off mechanical control vs PI electronic control. Features overview 7 day schedule models, 2 or 4 events Gas/oil or electric system compatibility for all type of applications Remote indoor averaging sensing capability Temperature averaging with 2, 3, 4, 9 or 16 sensors Remote outdoor sensing capability for added flexibility System mode lock out Heat pump balance point settings If replacing an existing Terminal Equipment Controller, label the wires before removal of the Terminal Equipment Controller. Electronic controls are static sensitive devices. Discharge yourself properly before manipulating and installing the Terminal Equipment Controller. A short circuit or wrong wiring may permanently damage the Terminal Equipment Controller or the equipment. All VT7000 series Terminal Equipment Controllers are designed for use as operating controls only and are not safety devices. These instruments have undergone rigorous tests and verification prior to shipping to ensure proper and reliable operation in the field. Whenever a control failure could lead to personal injury and/or loss of property, it becomes the responsibility of the user / installer / electrical system designer to incorporate safety devices (such as relays, flow switch, thermal protections, etc…) and/or an alarm system to protect the entire system against such catastrophic failures. Tampering with the devices or unintended application of the devices will result in a void of warranty. 4 | PIR Ready VT7600 Series-Installation Guide Remote discharge air sensor input for monitoring purpose System efficiency feedback Lockable keypads for tamper proofing. No need for Terminal Equipment Controller guards Automatic frost protection to prevents costly freeze damage Anti short cycle and minimum on/off run time protection. Reduces wear and maximizes life span of mechanical equipment. 2 configurable digital inputs for added flexibility. Each input can be configured as the following: None: No function will be associated with the input Service: a backlit flashing Service alarm will be displayed on the Terminal Equipment Controller LCD screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction. Filter: a backlit flashing Filter alarm will be displayed on the Terminal Equipment Controller LCD screen when the input is energized. It can be tied to a differential pressure switch that monitor filters Rem NSB: remote NSB timer clock input. Will disable the internal scheduling of the Terminal Equipment Controller. The scheduling will now be set as per the digital input. The menu part related to scheduling is disabled and no longer accessible. It provides low cost setback operation via occupancy sensor or from a dry contact RemOVR: temporary occupancy contact. Disables all override menu function of the Terminal Equipment Controller. . The override function is now controlled by a manual remote momentarily closed contact. When configured in this mode, the input operates in a toggle mode. With this function enabled it is now possible to toggle between unoccupied & occupied setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time. Fan lock: used in conjunction with a local air flow sensor connected to the input. Locks out the Terminal Equipment Controller heating and cooling action and displays a local alarm if no air flow is detected 10 seconds after the fan (G terminal) is energized. Configurable smart fan operation saves energy during night mode Non volatile EEPROM memory prevents loss of parameters during power shortage Built in default profile set-up for easier start up and commissioning Configurable SPST output relay on Scheduling models for lighting, exhaust fan or fresh air control 6 hour typical reserve time for clock in case of power loss 0 to 10 VDC economizer output for more retrofit opportunities Built in dry bulb economizer logic using outdoor temperature sensor Input for supply/mixed air temperature sensor Heat pump model specific features Selectable single or dual stage compressor stages High balance point: Locks out auxiliary heating when outside air temperature is above this value Low balance point: Locks out heat pump compressor operation when outside air temperature is below this value Comfort/economy mode: In economy mode, heat pump use is maximized before turning On auxiliary heating Compressor/auxiliary interlock: Adds flexibility by locking out heat pump operation during auxiliary heating to prevent high pressure trip when the coil is downstream of the auxiliary heat source. 5 | PIR Ready VT7600 Series-Installation Guide M ODEL C HART 6 | PIR Ready VT7600 Series-Installation Guide Network ready All Viconics VT7600 series Terminal Equipment Controllers are designed for stand-alone (Network Ready) operation. They can be fully integrated into your choice of automation systems using the available communication adapter options. If required, stand-alone (Network Ready) Terminal Equipment Controllers can be field retrofitted with the following communication adapters: o VCM7600V5000B, Terminal Equipment Controller BACnet™ MS-TP® communication adapter o VCM7600V5000E, Terminal Equipment Controller Echelon™ Lontalk™® communication adapter o VCM7000V5000W Terminal Equipment Controller wireless Zigbee™ communication adapter T ERMINAL , I DENTIFICATION AND F UNCTION Wiring Multistage 1H / 1C Heat Pump Part Number VT7656B VT7605B VT7652B VT7600B VT7652A VT7600A Part Number VT7652H VT7600H Schedule Yes No Yes No Yes No Schedule Yes No Top left terminal block Top left terminal block Y2 X X X X Y2 X X Y1 X X X X X X Y1 X X G X X X X X X G X X RC X X X X X X RC X X C X X X X X X C X X Top right terminal Top right terminal block RH X X X X X X RH X X W1 X X X X X X W1 X X W2 X X X X O/B X X Bottom terminal block Bottom terminal block Econo X X Aux X X X X X X Aux X X DI1 X X X X X X DI1 X X DI2 X X X X X X DI2 X X RS X X X X X X RS X X Scom X X X X X X Scom X X OS X X X X X X OS X X MS X X X X X X MS X X 7 | PIR Ready VT7600 Series-Installation Guide Screw terminal arrangement Main outputs wiring Wiring notes: Note 1: If the same power source is used for the heating stages, install jumper across RC & RH. Maximum current is 2.0 amps. Note 2: 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 3: Economizer output uses a half bridge rectifier. Reference of the control signal is the common of the power supply of the Terminal Equipment Controller. (Terminal C) Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs cannot be used as mean of switching for the input. The switched leg to the input for the input to activate is terminal C (common) Note 5: The transformer of the unit provides power to the t Terminal Equipment Controller and the additional loads that will be wired to the Terminal Equipment Controller. ECAU D1 D2RS Scom OSMS Y2Y1GRCC RHW1 W2 O/B 5 pole left top connector 3 pole left top connector 8 pole bottom connector8 | PIR Ready VT7600 Series-Installation Guide T YPICAL APPLICATIONS VT7656B5X00(X) 2 Heat / 2 Cool / Economizer / With Schedule VT7652H5X00(X) Heat pump / Without Schedule Auxiliary Heat W1 System wiring Jumper J1 Thermostat internal wiring Compressor Stage 1 24 VAC T1 Compressor Stage 2 Y2 Jumper J1 See note 1 (previous page) Fan G Y1 RC C RH Remote Room Sensor Field contacts Reversing Valve Digital Input #2 Digital Input #1 Auxiliary Output O/B AU DI1 DI2 Scom RS Remote Outdoor Sensor Remote Mixed Air Sensor MS OS Controller Terminals - VT7652H5x00 Y2 DI1 DI2 AU Y1 RC G O/B OS RS Scom RH C W1 MS Controller Terminals - VT7656B5x00 Y2 EC RC G Y1 AU DI1 DI2 W2 MS W1 RH C Scom RS OS 9 | PIR Ready VT7600 Series-Installation Guide Remote sensor accessories MODEL NO. DESCRIPTION S3010W1000 Wall mounted temperature sensor S3020W1000 Wall mounted temperature sensor+override button and occupancy status S2020E1000 Outdoor temperature sensor S2060A1000 Averaging temperature sensor S2000D1000 Duct mounted temperature sensor Remote mount temperature sensors use 10K NTC thermistor. This sensor can be used for: Various averaging combinations Optional occupancy led Optional override key Wall mounted sensor WIRING EXAMPLE OF SINGLE REMOTE ROOM SENSOR: Scom RS Scom RS Scom RS Scom RS VT7600 Series 1x S3020W1000 Remote wiring 1 sensor S2-1 = ON / S2-2 = ON S3010W1000 Remote wiring 1 sensor S2-1 = ON / S2-2 = ON Dip switch setting for: 1 sensor S2-1 = ON S2-2 = ON Dip switch setting for: 1 sensor S2-1 = ON S2-2 = ON Next >