Heat & Glo • 6000PLUS • 2063-900 Rev. E • 11/05
15
Step 9. Sequence of Operation
The 6000PLUS 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 6000PLUS 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 12V DC 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 burn-
ers are lit.
4. Sends a 12 DV signal to the gas appliance burner
(by energizing relay K2 on the circuit board) and
closing the contacts between the R1 and R2 termi-
nals to initiate the ignition sequence.
d. The 6000PLUS does the following:
1. The 6000PLUS 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.
2. HRV200PLUS Defrost Mode
!
a. The HRV200PLUS demands gas appliance opera-
tion for defrost. This occurs when the following
conditions exist:
1. The appliance is not in use.
2. The outdoor temperature falls below 25
o
F.
3. The DEFC1 jumper is not installed on the
HRV200PLUS circuit board.
b. The HRV200PLUS does the following:
1. Turns blowers on to high speed.
2. Positions HRV200PLUS dampers (if installed) for
appliance operations.
3. Presents a 15-second delay (pre-purge) before burn-
ers are lit.
4. Closes the contacts between the R1 and R2 termi-
nals to initiate the ignition sequence (by energiz-
ing relay K1 on the circuit board).
c. The 6000PLUS does the following:
1. The 6000PLUS 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.
d. The HRV200PLUS shuts off.
WARNING: THE APPLIANCE MAY OPERATE TO
DEFROST THE HRV200PLUS AT ANY TIME.
NOTE: The HRV200PLUS can use indoor air instead of the
gas appliance for defrost if the optional defrost kit (part#
HRV99DEFKIT) is installed.
