12
4031-478 Rev i
11/04
NOVUS PLUS INSTALLATION INSTRUCTIONS
c.
Place the Rock Wool
Place a small amount of 1/2 in. diameter pieces (dime-
size) of rock wool on the burner pan so that the rock
wool touches but does not cover the holes in the burner
pan. See Figure 17. This will provide the “glowing embers”
look. It is not necessary to use the entire bag. Save the
remaining rock wool for future use.
I. SEQUENCE OF OPERATION
The Novus Plus must be installed with an HRV200PLUS. The appliance and ventilator operate as a system. The HRV200PLUS controls
many of the operational sequences for the system, and the Novus Plus gas appliance maintains safety control for the combustion
process.
The sequence of operation for the system is as follows:
1. Appliance Mode
a.
The user creates a demand for system operation using remote control, wall switch or thermostat.
b.
A 12VDC signal is sent from the HI terminal on the appliance circuit board to the HRV200PLUS.
c.
The HRV200PLUS does the following:
1)
Turns blowers on to high speed.
2)
Positions HRV200PLUS dampers (if installed) for appliance operation.
3)
Presents a 15-second delay (pre-purge) before burners are lit.
4)
Sends a 12VDC signal to the gas appliance burner (by energizing relay K2 on the circuit board) and closing the contacts
between the R1 and R2 terminals to initiate the ignition sequence.
d.
The Novus Plus does the following:
1)
The Novus Plus awaits the signal from the HRV200PLUS to light the burners.
2)
When the contact between R1 and R2 closes in the HRV200PLUS, the intermittent pilot ignition (IPI) system activates and
lights the burners.
3)
When the user demand for appliance operation is removed, the HRV200PLUS de-energizes C2 and R1 terminals,
terminating burner operation.
4)
There is a 20-second delay (post-purge) on the HRV high fan and a 5-minute delay on the HRV low fan.
e.
The HRV200PLUS shuts off.
d.
Place the Fire Glow (not supplied)
Fire Glow (FIRE98) is a flame colorant material that adds
to the realism of the gas appliance flame. After placing
the rock wool in the appliance, sprinkle some of the fire
glow on top of the rock wool. As with the lava rock,
vermiculite and rock wool, it is not necessary to use the
entire bag. Save the remaining Fire Glow for future use.
6. Replace the Glass
See “Cleaning the Glass” in “Maintenance Instructions”.
7. Replace the Control Access Panel
Place the control access panel on the pins as shown in
Figure 18.
Figure 17 - Placing the Rock Wool
Figure 18 - Replacing the Control Access Panel
