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15 MAIN CONTROL INSTALLATION (99-BC02/3/4)
The 99-BC02, 99-BC03, 99-BC04 ventilation controls may either be installed onto a flush mounted electrical switch box or
surface mounted onto a wall. Only one main control should be installed into a ventilation system.
Installation:
1. Carefully separate the face plate and the back plate by firmly pulling it apart. Keep the top/bottom vent openings
clear (figure A).
2. Position the back plate in the desired location on the wall and mark the wall for the desired screw holes (figure B).
3. For mounting the main control without a Decora plate, break off the top and bottom tabs than position the back plate
in the desired location on the wall and mark the wall for the desired screw holes (figure C)
4. Remove the back plate from the wall and mark the hole for the wires centered between the two screw holes (figure B
or C).
5. Drill two 1/8 in. holes for the screws and wall anchors and drill one 1 in. x 0.75 in. hole for the wires.
6. Pull the 3 wire 20 gauge (min.), 100 ft length (max.), through the opening in the wall.
7. Connect the wires to the R, G, and Y terminals on the back plate (figure B or C).
8. Using the two supplied screws and anchors, install the back plate on the wall.
9. Attach the face plate to the back plate (figure A).
10. Connect the 3 wires 20 gauge (min.), 100 ft length (max.), to the 3 (RED), 4 (YEL), and 5 (GRN) terminals located on
the HRV terminal block (figure D).
• Use care when separating or attaching the face plate to avoid damaging the contact pins.
BC02/03/04 with TB04 Terminal Block
BC02/03/04 with TB01 Terminal Block