17
Ignition Control LED
The ignition control board contains a green LED which indicates the following:
TABLE 3
IGNITION CONTROL LED
TABLE 4
NATURAL GAS MANIFOLD PRESSURES − inch w.g. (kPa)
TABLE 5
LP/PROPANE GAS MANIFOLD PRESSURES − inch w.g. (kPa)
LED
UNIT OPERATION
Slow. Flash*
Normal Operation − No call for heat
Fast Flash
Normal Operation − Call for heat
2 Flashes
System lockout − failed to detect or sustain flame
3 Flashes
Pressure switch failed closed before CAI is
energized or failed open after CAI is energized
4 Flashes
High limit or rollout switch open
5 Flashes
Flame sensed and gas valve not energized
Steady Off
Loss of Power
Steady On
Ignition control failure
*
When thermostat is placed in continuous fan mode LED will slowly flash.
High Altitude Adjustments
Units may be fired at full input up to 2000 feet. (610m) above sea level. Above 2000 feet
(610m), manifold pressure must be adjusted on some units. Adjust pressure regulator to
pressure shown in table 4 for natural gas and table 5 for LP/propane gas.
INPUT
(BTU/Hr)
Altitude in Feet (Meters)
0−3500
(0−1067)
35−4500
(1067−1372)
45−5500
(1372−1676)
55−6500
(1676−1981)
65−7500
(1981−2286)
50
3.5 (0.87)*
3.5 (0.87)*
3.5 (0.87)*
3.5 (0.87)*
3.4 (0.85)
80
3.5 (0.87)*
3.4 (0.85)
3.3 (0.82)
3.2 (0.80)
3.1 (0.77)
*No adjustment required.
INPUT
(BTU/Hr)
Altitude in Feet (Meters)
0−3500
(0−1067)
35−4500
(1067−1372)
45−5500
(1372−1676)
55−6500
(1676−1981)
65−7500
(1981−2286)
50
9.5 (2.37)*
9.5 (2.37)*
9.5 (2.37)*
9.5 (2.37)*
9.2 (2.28)
80
9.5 (2.37)*
9.2 (2.28)
8.9 (2.21)
8.6 (2.13)
8.3 (2.06)
*No adjustment required.
Содержание GHBVL50
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