Multi-Unit Residential HRV/ERV
23
Interlocking with Air-Handler/Furnace Blower
Wiring to the Power Source
Once all the ducts are installed and the wires for the controllers are connected, connect the
HRV/ERV to a 120V power source according to the model type:
Models with power cord and NEMA 5-20 plug:
Plug the HRV/ERV into a standard 120V NEMA 5-20 receptacle with ground.
DO NOT USE AN
EXTENSION CORD.
Models without power cord (model numbers ending in -N)
:
WARNING:
Cordless models must be wired to the building mains by a licensed electrician
according to applicable electrical and building codes.
To wire the HRV/ERV:
1. Ensure that the circuit breaker is turned off during installation.
2. Locate the junction box on the HRV/ERV (see illustration below).
3. Remove the junction box cover with a Philips-head screwdriver. Retain the screws for
later when replacing and securing the junction box cover (Step 7).
4. Insert the electrical conduit into the 7/8” (22.3 mm) hole in the junction box cover, and
secure it with a clamp or washer and screw.
5. Pass the wire through the conduit.
6. Strip insulation 1/4” (6.4 mm) from the ends of the wires.
7. Connect the wires to the HRV/ERV terminal block
8. Replace the junction box cover over the box and secure it using the screws from Step 2.
9. Turn on the circuit breaker and confirm that the HRV/ERV powers up.
TERMINAL BLOCK
8 7 6
2
1
3
4
5
HVAC AHU
START
CO
M
NC
GRN
GRN
RED
BLK
NO
WHT