Overfire Pressure Test Procedure; Fan-Limit Adjustment - ICP ODH53F100LB-3MC Guide D'installation

2.3.7)

Overfire pressure test procedure

1. To read the pressure, replace the glass with the washer supplied
with the appliance;
2. After the test, put the glass back in place in the sight glass
assembly;
3. Verify that the pressure reading corresponds to the one specified
in Table 4. Also see Figure 3.1.
DNS-0703 Rev. A
2.3.8)

Fan-Limit adjustment

Modification of the "FAN ON" and "HI" limit settings on the Fan-Limit
can cause malfunctioning of the furnace and result in premature wear
of the heat exchanger.
CAUTION
Modification of the factory set limits will void the
warranty.
FIGURE 4
DNS-0355 Rev.B
1 Limit "FAN OFF"
2 Limit "FAN ON"
3 Limit "HI"
18
FIGURE 3.1
2.3.9)
On side-wall vented furnaces, the DV-2000™ venting system
incorporates a safety shutdown system that will shut the burner down
before #1 smoke occurs due to the presence of a blocked intake or
blocked vent outlet. Test the system as follows:
1.
2.
3.
4.
5.
The DV-2000™ safety shutdown system will shut down
the burner flame during a blocked intake or blocked
vent condition if and only if the burner has been set up
and calibrated in accordance with Part 2, section 3.4
(2.3.4). Perform the CO
the burner is adjusted and final-set to a #1 smoke
90°F
condition during normal operation, the burner flame
130°F
cannot possibly shut down before #1 smoke occurs
200°F
during a blockage condition.
445 01 4024 03
DV-2000™ Blocked intake / blocked vent
test
Ensure that the furnace has been running for at least 10 minutes;
Gradually block the intake. The burner flame should shut down
before a #1 smoke reading occurs;
Gradually block the vent outlet. The burner flame should shut
down before a #1 smoke reading occurs;
If the burner does not shut down before #1 smoke occurs, ensure
that the burner is set up according to Part 2, section 3.4 (2.3.4).
Perform the CO / Smoke Test, and allow for the 1.5% CO
2
operating headroom required by the instructions;
If the burner still does not shut down before #1 smoke occurs,
check for a blockage in the pressure hose, or at the hose
connection points.
IMPORTANT
/ Smoke Test. For instance, if
2
2