RenewAire EV450IN CO2 Sensor Installation Guide
- June 12, 2024
- RenewAire
Table of Contents
CO2 Sensor
Supplemental Wiring Manual for Accessories
EV-Series
SL-Series
EV Premium
HE-Series
LE-Series
CO2-D CO2-W
ACCESSORY
1.0 OVERVIEW
The CO2 monitor uses a highly accurate and reliable Non-dispersive Infrared (NDIR) with state of-the-art digital linearization and temperature compensated circuitry to detect CO2 levels in an attractive, low profile enclosure for room applications and a duct mount version provide a linear analog signal output of 4-20 mA, 0-5, or 0-10 VDC and a Normally Open (NO) relay to control an alarm or ventilation fan in various ways.
2.0 DIMENSIONS
2.1 CO2-W
2.2 CO2-D
3.0 ELECTRICAL
3.1 WIRING SCHEMATICS
24VAC Class II Power Supply provided by other
FIGURE 3.1.0
WIRING SCHEMATIC FOR EV90, EV90P, EV130, EV200, EV240, EV300 UNITS ONLY
- The Normally Open contacts of one or more additional Low Voltage Controls may be connected to ERV unit in parallel with the CO2-W or CO2-D.
FIGURE 3.1.1 WIRING SCHEMATIC FOR SL-SERIES UNITS
- The Normally Open contacts of one or more additional Low Voltage Controls may be connected to ERV unit in parallel with the CO2-W or CO2-D.
In this example, CO2 Controller turns the Energy Recovery Ventilator (ERV) on at High speed when CO2 level exceeds CO2 Controller Relay setting.
FIGURE 3.1.2 WIRING SCHEMATIC FOR EV PREMIUM UNITS
FIGURE 3.1.3 WIRING SCHEMATIC FOR EV450, HE1XIN, AND HE1.5IN UNITS WITHOUT
ECM
- The Normally Open contacts of one or more additional Low Voltage Controls may be connected to ERV unit in parallel with the CO2-W or CO2-D.
FIGURE 3.1.4 WIRING SCHEMATIC FOR HE1XRT, HE1.5RT, LE-SERIES, AND ALL HE2X
AND LARGER UNITS WITHOUT VFDS OR EC MOTORS
- The Normally Open contacts of one or more additional Low Voltage Controls may be connected to ERV unit in parallel with the CO2-W or CO2-D.
FIGURE 3.1.5 WIRING SCHEMATIC FOR HE-SERIES AND LE-SERIES UNITS WITH
FACTORY-INSTALLED VFDS
-
Signal cable shield (screen)
Frequency Input (set for 0-10vdc)
Frequency Input Common (ground) -
Frequency Output (4-20mA)
Frequency Output Common (ground) -
Install jumper between 9 & 12 for constant operation.
-
Signal cable shield (screen)
Frequency Input (set to 4-20mA)
Frequency Input Common (ground) -
Install jumper between 9 & 12 for constant operation.
-
On-board 24VAC Power supplied by ERV
-
For 4-20mA input, place Jumper All at TOP.
-
For 0-10vdc input, place Jumper All at BOTTOM.
FIGURE 3.1.6 WIRING SCHEMATIC FOR EV450 UNITS WITH ECM AND TERMINAL BLOCK
1.
EXAMPLE ONLY: See also ECM MOTOR MANUAL SUPPLEMENT
In this example, ERV runs constantly at low Speed 1.
During occupancy, ERV runs at higher, variable Speed 2.
JUMPER FOR CONSTANT ON.
SPEED 1 SET BY RESISTORS.
TIME CLOCK ACTIVATES SPEED 2.
CO2 CONTROLLER SETS SPEED 2.
2.
DISCONNECT FACTORY-INSTALLED
POTENTIOMETER FROM TRMINALS 6, 8 & 9.
3. FIELD-INSTALLED JUMPER
4. On-board 24VAC Power
5. Master ON/OFF Relay
6. HIGH/LOW Relay
7. Analog Signal GROUND
8. Analog Signal IN
9. Analog Signal REFERENCE
10. To Motor Controller
11. Factory-installed Resisters between terminals 5, 7 & 9 determine
SPEED 1
12. FIELD-INSTALLED TIME CLOCK ACTIVATES SPEED 2
13. Connect the analog signal grounds.
14. FIELD-INSTALLED CO2 CONTROLLER SETS SPEED 2
FIGURE 3.1.7 WIRING SCHEMATIC FOR HE1X AND HE1.5 UNITS WITH ECM AND
TERMINAL BLOCK
1.
In this example, CO2 Controller turns ERV on at Speed 1 when CO2 level exceeds
Controller Relay setting.
CO2 Controller Analog output sets Speed 1.
2. REMOVE FACTORY-INSTALLED RESISTORS, DISCONNECT POTENTIOMETERS.
3. Analog Signal GROUND FAN 1
4. Analog Signal IN FAN 1
5. Analog Signal REFERENCE FAN 1
6. To EA Motor Controller FAN 1
7. Factory-installed jumpers passes “ON” and “MODE” signals to Fan 2
8. Analog Signal GROUND FAN 2
9. Analog Signal IN FAN 2
10. Analog Signal REFERENCE FAN 2
11. To FA Motor Controller FAN 2
12. Connect the analog signal grounds.
In this example, the CO2 Controller turns the ERV on at speed set by potentiometer(s) when CO2 level exceeds CO2 Controller Relay setting. EV450 Circuit Board shown with one potentiometer. HE1X and HE1.5 Circuit Boards have two potentiometers.
FIGURE 3.1.8 WIRING SCHEMATIC FOR EV450, HE1XI AND HE1.5 UNITS WITH ECM AND
CIRCUIT BOARD
In this example, the ERV does not run while unoccupied, set by timer. During
occupancy, ERV runs at variable Speed. CO2 Controller sets speed based on CO2
levels. Remove the potentiometer(s) by cutting the wires at the potentiometer.
Cap the orange and purple wires from the potentiometer with wire nuts. EV450
Circuit Board shown with one potentiometer. HE1X and HE1.5 Circuit Board has
two potentiometers and the cut wires can be wired in parallel
back to the CO2 Controller.
FIGURE 3.1.9 WIRING SCHEMATIC FOR EV450, HE1X, AND HE1.5 UNITS WITH ECM AND
CIRCUIT BOARD AND TIMER
4.0 FACTORY ASSISTANCE
In the unlikely event that you need assistance from the factory for a specific issue, make sure that you have the information called for in the Unit Records page in the Owner Information section of the unit manual. The person you speak with at the factory will need that information to properly identify the unit and the installed options.
To contact RenewAire Customer Service:
Call800-627-4499
Email:RenewAireSupport@RenewAire.com
About RenewAire
For over 30 years, RenewAire has been a pioneer in enhancing indoor air quality (IAQ) in commercial and residential buildings of every size.This is achieved while maximizing sustainability through our fifth-generation, static- plate, enthalpic-core Energy Recovery Ventilators (ERVs) that optimize energy efficiency, lower capital costs via load reduction and decrease operational expenses by minimizing equipment needs, resulting in significant energy savings. Our ERVs are competitively priced, simple to install, easy to use and maintain and have a quick payback. They also enjoy the industry’s best warranty with the lowest claims due to long-term reliability derived from innovative design practices, expert workmanship and Quick Response Manufacturing (QRM).
As the pioneer of static-plate core technology in North America, RenewAire is the largest ERV producer in the USA. We’re committed to sustainable manufacturing and lessening our environmental footprint, and to that end our Waunakee, WI plant is 100% powered by wind turbines. The facility is also one of the few buildings worldwide to be LEED® Gold and Green Globes certified, as well as having achieved ENERGY STAR Building status. In 2010, RenewAire joined the Soler & Palau (S&P) Ventilation Group in order to provide direct access to the latest in energy-efficient air-moving technologies. For more information, visit: renewaire.com
201 Raemisch Road | Waunakee, WI | 53597 | 800.627.4499 | RenewAire.com
Member of the S&P Group
Family of Brands
2021 © RenewAire LLC
138201_008_NOV21
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>