Fan Coil Accessory
Installation Kit for ERVXXNVA
5428
Installation Instructions
INTRODUCTION
Install the 5428 Fan Coil Accessory Installation Kit with the ERVXXNVA Energy Recover Ventilator to control the ERV when
installed with a fan coil. A 115-volt receptacle must be installed within 6 feet of the ERV for power. The ERV will turn
on/off with the fan signal from the thermostat. Note: “G” signal required – not for use with communicating controls.
INSTALLATION
1. Install the ERV cabinet and provide ducting to the
ERV in accordance with the instructions provided
with the unit.
WARNING
!
Electrical Shock Hazard
Failure to follow this warning could result in personal
injury or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one
disconnect switch
2. Install a standard 115-volt receptacle within 6 feet of
the ERV electrical control box. (The ERV will draw
1.3 amps at high speed and less at medium and low
speeds.)
3. At the thermostat, turn the Mode to OFF and Fan to
OFF.
4. Open the electrical enclosure and clip any wire tie
that captures the white wire that connect the
receptacle to the 2-pole terminal block of the ERV.
5. Disconnect the blue and yellow wire from the 2-pole
terminal block near the end of the enclosure, and
remove the terminal block (see Figure 1).
6. Clip the ends off the blue and yellow wires and put a
wire nut (supplied) on each to prevent shorting
them.
7. Remove the screws from the transformer and move
it toward the “star” grommet –
there are two holes in the
enclosure base for relocating
the transformer (see Figure 2).
If the white, black, red and
orange wires of the
transformer are not long
enough to permit moving it to
the new location, use the small
jumper wires included with the
kit to extend the transformer wires.
REMOVE
Figure 1 - Remove 24VAC Terminal Block
MOVE
Figure 2 - Move Transformer
INSTALL
Figure 3 - Install Relay
Figure 4 - Relocate Existing Power Wires to Relay
8. Install the relay as shown (see Figure 3)
with the two terminals that are in the
opposite direction as the set of four
terminals facing the same side as the blue
and yellow wires of the transformer.
9. Disconnect the white wire that connects
the receptacle to the 2-pole terminal block
from the terminal block and install on on
the relay (see Figure 4). Disconnect the
single black wire from the “High” terminal
Figure 5 - Install Supplied Black/White Jumper Wires
of the 3-pole terminal block and connect it
to the relay (see Figure 4).
10. Install the supplied white jumper to the relay and
the 2-pole terminal block as shown (see Figure 5).
Install the supplied black jumper to the relay and
the “High” terminal of the 3-pole terminal block as
shown.
11. Run a 2-wire cable (not supplied) from the fan coil
control to the relay. Route the cable through the
“star” grommet. Install the supplied quick connect
terminals to the end of the wires and attach the
wires to the coil of the relay (see Figure 6).
Figure 6 - Wire Relay Coil to Fan Coil
12. At the fan coil, attach one wire to the fan (G)
terminal and the other to the 24VAC-common (C) terminal (see Figure 7 – System Schematic).
13. Replace the electrical enclosure cover and use the provided power cord to plug the ERV into the receptacle.
14. Follow the Start Up section in the ERV Installation Manual to complete the installation.
Figure 7 - System Schematic
10010566, B2206216A
Copyright 2013 CAC / BDP • 7310 W. Morris St. • Indianapolis, IN 46231
Edition Date: 11/13
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No: AG-5428-01
Replaces: NEW