CVL4022AS-VAV1/U
Details
Details
Product Information
General
The CUL6438SR-CV1, CVL4022AS-VAV1, and CVL4024NS-VAV1 controllers are part of the Stryker family. The controllers are Free Topology Transceiver (FTT) LONMARK®-certified devices designed to control HVAC equipment.
These controllers provide many options and advanced system features that allow state-of-the-art commercial building control. Each controller is configurable using the NIAGARA FRAMEWORK® software.
The Stryker controllers require the Stryker Feature to be licensed in the WEBpro workbench tool and the WEBS AX JACE Controller for programming and downloading any brand of the Niagara Workbench or JACE controller.
The controllers are for use in VAV (Variable Air Volume) and CVAHU (Constant Volume Air Handling Unit) control applications. Each controller contains a host microcontroller to run the main HVAC application and a second microcontroller for LONWORKS® network communications.
Each controller provides flexible, universal inputs for external sensors, digital inputs, and a combination of analog outputs and digital outputs.
Features
- Uses the Echelon® LONWORKS® network protocol.
- Free Topology Transceiver (FTT) high-speed 78 kilobit communications network.
- Capable of stand-alone operation, but can also use LONWORKS® Bus network communications.
- Sylk™ bus for use with Sylk-enabled sensors.
- 120 controllers per Q7751A,B Router when configured as a repeater.
- Field configurable for control, input, and output functions using the NIAGARA FRAMEWORK® software.
- Built-in Zone Control functions include a remote wall module interface and a scheduler.
- Pressure-independent or pressure-dependent single VAV control (CVL4022AS-VAV1 and CVL4024NS-VAV1 only).
- Microbridge air flow sensor with dual integral restrictor design.
- Easy user access to air flow sensor inputs.
- Actuator (CVL4022AS-VAV1 only) mounts directly onto VAV box damper shaft and has up to 44 lb-in (5 Nm) torque, 90-degree stroke, and 90 second timing at 60 Hz.
- All wiring connections are made to removable terminal blocks to simplify controller installation and replacement.
- Both controller housing and actuator are UL plenum rated.
Specifications
Description
The configurable VAV/Unitary controllers are available as described in Table 1.
Table 1. Controller Configurations
| Controller Model | Programmable Type | Universal Inputs (UI) | Digital Inputs (DI) | Analog Outputs (AO) | Digital Outputs (DO) | Velocity Pressure Sensor (Microbridge) | Series 60 Floating Actuator |
|---|---|---|---|---|---|---|---|
| CUL6438SR-CV1 | CVAHU | 6 | 4 | 3 | 8 Relay | NO | NO |
| CVL4022AS-VAV1 | VAV | 4 | 0 | 2 | 2 | YES | YES |
| CVL4024NS-VAV1 | VAV | 4 | 0 | 2 | 4 | YES | NO |
VAV Equipment Control (Models CVL4022AS-VAV1 and CVL4024NS-VAV1)
VAV controllers provide pressure-independent air flow control and pressure-dependent damper control. VAV systems generally provide cool air only to zones.
However, each controller has additional programmable inputs and outputs that may be used to control devices such as a fan or VAV box reheat coils. Heaters can be staged electric or modulating hot water.
Supply and exhaust pressurization control are provided on a zone basis.
Specifications
Electrical
- Rated Voltage: 20–30 Vac; 50/60 Hz
- Power Consumption:
- 100 VA for controller and all connected loads (including actuator on model CVL4022AS-VAV1)
- Controller only load: 5 VA maximum (models CVL4024NS-VAV1 and CUL6438SR-CV1)
- Controller and actuator load: 9 VA maximum (model CVL4022AS-VAV1)
- External Sensors Power Output: 20 Vdc ±10% @ 75 mA maximum
Environmental
VAV Operating & Storage Temperature Ambient Rating
(Models CVL4022AS-VAV1 and CVL4024NS-VAV1)
- Minimum: 32°F (0°C)
- Maximum: 122°F (50°C)
CVAHU Operating & Storage Temperature Ambient Rating
(Model CUL6438SR-CV1)
- Minimum: −40°F (−40°C)
- Maximum: 150°F (65.5°C)
- Relative Humidity: 5% to 95% non-condensing
Dimensions (H/W/D)
See Fig. 3 and Fig. 4 beginning on page 6 for dimension drawings.
Approval Bodies
- UL/cUL (E87741) listed under UL916 (Standard for Open Energy Management Equipment) with plenum rating
- CSA (LR95329-3) listed
- Meets FCC Part 15, Subpart B, Class B (radiated emissions) requirements
- Meets Canadian standard C108.8 (radiated emissions)
EMC Directive: 2014/30/EU
Standards Applied:
- IEC 61000-4-8:2009
- IEC 61000-4-11:2004
- EN 61000-6-1:2007
- EN 61000-6-3:2007/A1:2011
- EN 60730-2-9:2010
- EN 60730-2-14:1997 + A1:2001
- EN 60730-1:2000 + A1:2004 + A16:2007 + A2:2008 (Annex H.26)
RoHS Directive: 2011/65/EU
- EN 50581:2012
Regulatory Compliance Mark (RCM) declaration in Australia
Real Time Clock
- Operating Range: 24-hour, 365-day, multi-year calendar including day of week and automatic daylight savings configuration.
- Power Failure Backup:
- 24 hours at 32° to 100°F (0° to 38°C)
- 22 hours at 100° to 122°F (38° to 50°C)
- Accuracy: ±1 minute per month at 77°F (25°C)
Velocity Pressure Sensor (Models CVL4022AS-VAV1 and CVL4024NS-VAV1)
- Operating Range: 0 to 1.5 in. H₂O (0 to 374 Pa)
Series 60 Floating Actuator (Model CVL4022AS-VAV1)
- Rotation Stroke: 95° ± 3° for CW or CCW opening dampers
- Torque Rating: 44 lb-in. (5 Nm)
- Run Time for 90° rotation: 90 seconds at 60 Hz
Inputs and Outputs
Each controller has a combination of universal inputs (UI), digital inputs (DI), analog outputs (AO), and digital outputs (DO) as listed in Table 1.
Digital Input (DI) Circuits
- Voltage Rating: 0 to 30 Vdc open circuit
- Input Type: Dry contact to detect open and closed circuit
- Operating Range: Open circuit = False; Closed circuit = True
- Resistance:
- Open circuit > 3,000 Ohms
- Closed circuit < 500 Ohms
Digital Triac Output (DO) Circuits
- Voltage Rating: 20 to 30 Vac @ 50–60 Hz
- Current Rating: 25 mA to 500 mA continuous
- 800 mA (AC rms) for 60 milliseconds
Digital Relay Output (DO) Circuits (CUL6438SR-CV1 Only)
- Voltage Rating: 20 to 30 Vac @ 50–60 Hz
- Current Rating: 0 mA to 1 A continuous
- 3.5 A inrush (AC rms) for 100 milliseconds
Analog Output (AO) Circuits
Analog outputs can be individually configured for current or voltage.
Analog Current Outputs
- Current Output Range: 4.0 to 20.0 mA
- Output Load Resistance: 550 Ohms maximum
Analog Voltage Outputs
- Voltage Output Range: 0 to 10.0 Vdc
- Maximum Output Current: 10.0 mA
Analog outputs may also be configured as digital outputs:
- False (0%) → 0 Vdc (0 mA)
- True (100%) → Maximum 11 Vdc (22 mA)
Universal Input (UI) Circuits
See Table 2 for the UI specifications.
| Input Type | Sensor Type | Operating Range |
|---|---|---|
| Room / Zone / Discharge / Outdoor Air Temperature | 20K Ohm NTC | -40°F to 199°F (-40°C to 93°C) |
| Outdoor Air Temperature | C7031G | -40°F to 120°F (-40°C to 49°C) |
| Outdoor Air Temperature | C7041F | -40°F to 250°F (-40°C to 121°C) |
| Temperature Sensor | PT1000 (IEC751 3850) | -40°F to 199°F (-40°C to 93°C) |
| Setpoint Potentiometer | TR23 (500–10,500 Ohm) | -4° DDC to 4° DDC (-8° DDF to 7° DDF) or 50°F to 90°F (10°C to 32°C) |
| Resistive Input | Generic 100 Ohms – 100K Ohms | — |
| Voltage Input | Transducer / Controller | 0–10 Vdc |
| Discrete Input | Dry Contact Closure | Open Circuit ≥ 3000 Ohms Closed Circuit < 3000 Ohms |
Hardware
CPU
Each controller uses a Texas Instruments MSP430 family microprocessor. The processor contains on-chip FLASH program memory, FLASH information memory, and RAM.
Memory Capacity
- Flash Memory: 116 KB with 8 KB available for user program
- Retains FLASH settings for up to 10 years
- RAM: 8 KB