valent 486439 ERV Controller Instruction Manual
- May 15, 2024
- VALENT
Table of Contents
valent 486439 ERV Controller Instruction Manual
General Safety Information
This instruction manual provides installation, operating, maintenance, and parts information for the ERV Controller.
WARING
Improper installation, adjustment, alterations, service or maintenance can
cause injury and property damage, as well as possible voiding of factory
warranty. No person may install, operate, or maintain the ERV Controller
without first being fully trained and qualified in the installation, operation
and maintenance, and carefully reading and understanding the contents of this
manual. If you have any questions about these instructions, contact your local
representative.
Only qualified personnel should install this product. Personnel should have a
clear understanding of these instructions and should be aware of general
safety precautions. Improper installation can result in electric shock,
possible injury due to coming in contact with moving parts, as well as other
potential hazards. for more information, contact a licensed professional
engineer before moving forward.
- Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electrical Code (CEC) and ULC-S650 if installing this product in Canada.
- Verify that the power source is compatible with the equipment
ERV Controller Features
- UL Compliance E479135.
- Simple Installation & Setup
- Wide Range 100-277Vac, 50/60 Hz Input Voltage.
- Solid State Motor Control.
- Remote ON/OFF Control Input.
- Green LED Indicator for Remote ON.
- 24Vdc @ 100mA available for Remote Sensor Power.
- Remote Thermostat Input for Frost Control.
- Adjustable ON/OFF Timers for Frost Control.
- Blue LED Indicator Frost Control.
- 0-10VDC Single or Dual Motor Speed Control Switch SW2.
- Inlet/ Outlet Motor Swap Switch SW1. Swaps Inlet and Exhaust Motors without re-wiring.
Receiving
Upon receiving the product, check to ensure all items are accounted for by referencing the delivery receipt or packing list. Inspect each crate or carton for shipping damage before accepting delivery. Alert the carrier of any damage detected. The customer will note damage (or shortage of items) on the delivery receipt and all copies of the bill of lading which is countersigned by the delivering carrier. If damaged, immediately contact your local representative. Any physical damage to the unit after acceptance is not the responsibility of the manufacturer.
Handling
Unpacking
Verify that all required parts and the correct quantity of each item have been
received. If any items are missing, report shortages to your local
representative to arrange for obtaining missing parts. Sometimes it is not
possible that all items for the unit be shipped together due to availability
of transportation and truck space. Confirmation of shipment(s) must be limited
to only items on the bill of lading.
Storage
Controls are protected against damage during shipment. If the control cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the control during storage. The user assumes responsibility of the control and accessories while in storage. The manufacturer will not be responsible for damage during storage. These suggestions provide solely as a convenience to the user.
Indoor
The ideal environment for the storage of controls and accessories is indoors,
above grade, in a low humidity atmosphere that is sealed to prevent the entry
of blowing dust, rain or snow. Care must be taken to protect controls and
accessories from dirt, moisture, and extreme temperature during storage.
NOTE: Improper storage which results in damage to the product will void the
warranty.
Control Components
Verify that all of the following parts and hardware have been received prior
to beginning installation. Contact your local representative or the
manufacturer if replacement parts are required.
NOTE: Additional parts (provided by others) may be required to complete the
control installation, including additional wiring and hardware for mounting
the control to the building structure.
NOTE: See following page for diagram of provided mounting kit and control
components.
Mounting & Wiring
Hand/Off/Auto (HOA) Controller Mounting
HOA Wiring
ERV Specifications
AC Input Power
1115Vac, 230Vac, 277Vac 50/60 Hz.
Motor and Aux Input
115Vac — 208Vac Input, 50/60 Hz. 230Vac — 277Vac Input, 60/60 Hz.
Motor Output
QTY (2) 115Vac 8.8FLA 3/4HP QTY (1) Wheel Motor 115Vac 0.75 FLA
Remote ON Input
Provide a close contact between TB2-1 and TB2-2 will active the ERV
Controller.
Sensor Remote Power
+24VDC Pin 3 of TB2 and GND Pin 4 of TB2 is available for source powering
sensors. (Maximum 100ma).
Frost Control
Extremely cold outdoor air temperatures can cause moisture condensation and
frosting on the energy recovery wheel. Frost Control timer is a selectable
timer control that will prevent control wheel frosting. Frost control uses a
Therm-O-Disc P/N: 314886 T-O-D 60T11 (L15-10F) mounted in the outdoor air
intake compartment. Thermo-O-Disc has pre-set temperature of 5°F and uses the
normally closed contacts; contacts open on temperature rise. Use the test
procedure for troubleshooting.
Remote Thermostat/Therm-O Disc Input:
Wire between Pins 5 and 6 of TB2.
Timer Settings:
T1 ON Timer T2 OFF Timer
0 = 5 MIIN 0 = 5 MlN (default)
1 = 10 MIN 1 = 10 MIN
2 = 15 MIN 2 = 15 MIN
3 = 20 MIN 3 = 20 MIN
4 = 25 MIN 4 = 25 MIN
5 = 30 MIN (default) 5 = 30 MIN
6 = 35 MIN 6 = 35 MIN
7 = 40 MIN 7 = 40 MIN
Single Mode Speed Control
Place SW2 slide switch on ERV PCB to the Single position. Provide a 0- 10Vdc
command signal to Pin 7 (-) and Pin 8 (+) of TB2. This will control the speed
of both A and B motors.
Dual Mode Speed Control
Place SW2 slide switch on ERV PCB to the dual mode. Provide a 0-10Vdc command
signal to Pin 7 (-) and Pin 8 (+), of TB2 for speed control of Motor A.
Provide another 0-10V command signal to Pin 9 (-) and Pin 10 (+) of TB2 for
speed control of Motor B.
Inlet/Outlet Motor Swap
In the event the Inlet and Exhaust vents are swapped, slide SW1 switch on ERV
PCB A and B motors to reverse.
Agency Approval: UL E479135
Conditions of Acceptability
- ERV Controller must be mounted in a suitable end-use enclosure.
- Load motors rated 3/4HP shall be R/C (XDNW2) Electronically Protected Motor with Locked Rotor Protection.
Operation
IMPORTANT: Ensure all wiring is complete before applying power to the ERV controller.
Check Voltage
Before starting the ERV Controller, compare the supplied voltage with the
unit’s nameplate voltage and the motor voltage.
Initial Setup
-
Apply power to the ERV controller.
-
Remote ON: To turn `’ON” the ERV Controller, provide a close contact between Pins 1 and 2 of TB2 on ERV PCB. The Green LED will illuminate when activated (“ON”)
-
Validate Motor operation: With Remote “ON” activated, verify Energy Wheel, Inlet and Exhaust motors are functioning. Note: If A or B motor is “OFF”, check the following:
a. Frost control maybe activated depending on the Thermostat input Pins 5 and 6 of TB2.
b. 0-10Vdc Speed Controls settings are too low. From 0-1.9V, the A and B motor(s) will be off and will operate within the 2-10V range. -
Validate lnlet and Outlet (Exhaust) motor operation with setting of SW1 on the ERV Controller. Make sure SW1 is in the correct position A or B. If the Inlet and Outlet (Exhaust) are reserved, simply slide SW1 switch on the ERV PCB to the opposite position. This will swap Inlet and Outlet motors without re-wiring.
-
If +24Vdc is required for Remote sensor power, , validate +24Vdc between Pins 3 and Pin 4 (GND) of TB2. (Maximum 100ma).
HOA Troubleshooting
Maintenance Log
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Contact Us
Technical Support and Service
800-789-8550
support@doas.com
Valent Dedicated Outdoor Air Systems 6028th Avenue North Minneapolis, MN
55411 Main: 612-877-4800
More Information
Unit Schematics For configuration and connection questions, see the schematics
that shipped with your unit. They can typically be found attached to the main
control panel door.
Mechanical and Controls Manuals Find current mechanical and controls manuals
here: www.valentair.com/resources
© 2023 Valent Continuous product improvement is a policy of Valent; therefore, product functionality and specifications are subject to change without notice. For the most recent product information visit the product website.
ERV Controller Manual Part number: 486439 Rev. 1 November 2023