Heat Recovery Ventilator Control

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ra d iant heating S y ste m s uponor C lim a t e C o˘ ntrol ™ n e t w or k s y st e m h e a t r e co v e r y v e ntil a tor control INSTRUCTION Sheet

Heat Recovery Ventilator Control The Heat Recovery Ventilator (HRV) Control (A9011200) manages an HRV with up to three fan speeds: low, medium and high, depending on the manufacturer of the installed equipment. A single Uponor Climate C˘ontrol™ Network System can include up to eight HRV Controls.

Installation

Getting Started

2. After unclipping both legs, slide the clear cover to the right.

Mounting the Unit The HRV Control typically mounts on or near the HRV it controls. Use the following instructions to mount the control properly.

Caution: Before performing any wiring, disconnect the electrical power to the system to prevent electrical shock and damage to the device.

The package includes:

Note: Ensure all wiring complies with local electrical codes. Uponor recommends 18 AWG LVT or similar wire for all terminal block connections to the controlled equipment and the power source. Strip all wires to 1/4” (6.3 mm) to ensure proper connection to the terminal blocks.

• HRV Control (A9011200)

Outputs

Tools and Parts Required

The Uponor Climate C˘ontrol Network System HRV Control supports most HRV brands. Refer all HRV Controlrelated issues for this installation to Uponor Technical Support, regardless of your HRV brand.

Check the contents of this package. If the contents are damaged, please contact your Uponor sales representative or distributor for assistance.

1. Remove the cover by gently pulling the cover legs on the left of the case.

3. Use #6 screws in the three mounting holes to fasten the control as shown in Figure 1.

• RJ45 crimper and connectors • Cable tester • Wire cutter and stripper

Mounting Holes

• Small-blade screwdriver

Figure 1: Location of Mounting Holes

• Three #6 mounting screws and appropriate screwdriver

For speed selection, you can configure outputs for the HRV Control as: • Standard dry-relay contacts • A mixture of 3.9K ohm resistive and dry-contact inputs

Refer to Table 1 in configuring the HRV Control for various HRV manufacturers. Note: If your HRV is not listed in this section, contact the HRV manufacturer to determine which type of output is required to control your unit. HRV Manufacturer and Model Number

Configuration Notes These units require dry-relay contacts. Insert jumper J1A into the Lifebreath + Constructor position as shown in Figure 2.

Lifebreath

Venmar Constructor 1.5, 2.0

Figure 4: HRV Wiring Applications Refer to Figure 4 for wiring schematics to connect the HRV Control to various heat-recovery ventilators.

Power

Figure 2: Lifebreath + Constructor Position Venmar

VanEE

These require a dry contact for high speed and a 3.9k resistive contact for low speed; insert jumper J1A into the Other Venmars position as shown in Figure 3. Note: The AVS Solo is an example of this setup.

The main control cabinet supplies power for the HRV Control via the Cat5e network cable. The 24V power terminals require a separate 24V power supply when a CO2/VOC (carbon dioxide/volatile organic compound) sensor is connected to the HRV board.

Network and Main Panel Wiring On the right side of the HRV board, a Cat5e cable connects to the Field Modules (ports) of the Router Main Control. This cable may also connect to a Network Y-Connector when more than one HRV board is installed in the network system (in a “daisy-chain” configuration). The following devices may be combined with a Network Y-Connector:

Figure 3: Other Venmars Position Table 1: HRV Configuration Notes Note: All screw terminals used for connecting power and devices are blocks and can be removed from the board. This feature allows you to disconnect wiring temporarily without the need for remaking the connections.

• Furnace Air Handler Control (A9011100) • Heat Recovery Ventilator Control (A9011200) • Zone Valve Damper Control (A9011400) • General Input Output Control (A9011600)

Note: Total length of Cat5 cable in any daisy-chain configuration should not exceed 500 feet. Refer to Appendix A in the Uponor C˘ontrol Network System Manual for more information about wiring field device networks.

Optional CO2 /VOC Sensor You can add an optional CO2/VOC Sensor (A9010201) to the system to monitor the CO2 and VOC levels in the ventilated space. Important: The CO2/ VOC Sensor can not be used in the Climate C˘ontrol Network System without the HRV board. This sensor connects to the HRV Control either via the Cat5e connector on the top edge of the control or the terminal blocks. If connecting the CO2/VOC sensor to the Cat5e connector, supply 24VAC, 6 VA power to the black power connector on the left side of the control. Run a single pair of 18 AWG LVT wire from a 24VAC source to the HRV Control. If connecting the sensor to the terminal blocks, supply 24VAC, 6 VA power directly to the sensor. Refer to Figure 5 and Figure 6 for the two wiring options.

Configuration

Wiring Option 1:

C02 – VOC Sensor

24v Transformer

Unit Number Jumper The Unit Jumper indicates the network address for each HRV to a unique jumper position (address) between 1 and 8 (see Figure 7). Note: Do not set multiple HRV controls to the same number as this causes unpredictable operation.

Figure 5: Hardwire CO2/VOC Sensor Wiring

Figure 7: Unit Number Jumpers Manual Jumpers With Manual Jumpers, the installer can configure the manual operation of the control’s outputs.

Wiring Option 2:

24v Transformer

Note: You cannot configure the low output. It stays on continuously when the Manual switch is in the MAN position.

Cat5 Cable

Cat5 Connector

C02 – VOC Sensor

If another manual speed jumper is set to on, both the low output and the jumper’s respective output will activate. In most HRVs, a signal for mid or high speed will override the low output signal, and the HRV will run at the desired speed. In Figure 8, the low and high outputs will activate when the Manual switch is in the MAN position.

Figure 6: Cat5e CO2/VOC Sensor Wiring

Figure 8: Manual Switch and Jumpers

Manual Switch Operation The Manual switch offers an advantage in situations when the system is not completely set up or when the power to the Router Main Control is off. Select the MAN position on the Manual switch to run the HRV in manual mode. Auto Position The AUTO position allows the Uponor Climate C˘ontrol Network System to control the HRV Control outputs. Manual Position The MAN position turns the fan output on as well as any outputs whose manual jumpers are set in the ON position. Off Position The OFF position forces all the outputs on the control off.

Indicators and Specifications Indicator

Definition

On

Illuminates when the control has power

Green TX Red RX

Outputs

Flash rapidly when the control transmits or receives information. Note: The green TX light is often far dimmer than the red RX light. This is normal. Output indicators are available for each of the five control outputs. These indicators illuminate when their respective outputs activate.

Table 2: Indicator Definitions

Warning: In the OFF

CCN-HRVC_H061_IS_5-08, Copyright © 2008 Uponor, Printed in the United States

position, the Router Main Control cannot override the switch to control the outputs.

Uponor, Inc. 5925 148th Street West Apple Valley, MN 55124 USA Phone: (800) 321-4739 Fax: (952) 891-2008 www.uponor-usa.com

Uponor Ltd. 655 Park Street Regina, SK S4N 5N1 CANADA Phone: (888) 994-7726 Fax: (800) 638-9517 www.uponor.ca

Specifications Storage Temperature: 14 to 160°F (-10 to 70°C) Operating Temperature: 32 to 105°F (0 to 40°C) % Relative Humidity: 10 to 90% non-condensing Voltage: 24VAC +/- 10%, 50-60Hz Power Draw: 4 VA maximum for each HRV without attached CO2/VOC Sensor 1 0 VA maximum for each HRV with attached CO2/VOC Sensor Output: 24VAC, 24 VA Fuse: 4 amp, 125V, GMA