Eclipse Combustion DAH 사용자 설명서

1. Burner does not

a) Air pressure switches

a) Check pressures in

a) Change pressure

start initially.

not making.

duct at location of

connections where

switch connections.

a more positive

b) Faulty pressure

b) Check electrical

pressure is present.

switches.

portion of switch.

2. Burner kicks out

a) Low gas pressure

a) Check low pressure

a) Reset

shortly after start-up.

switch set too high.

switch setting.

3. Pilot will not ignite on

a) Raw gas fed into pilot

a) Check spark plug for

a) Adjust pilot gas cock by

initial light-off.

causing carbon hair on

carbon hair; also check

first screwing needle

spark plug.

gap on plug (should be

closed, then with trans-

3/64" - 3/32".

former powered, open
needle slowly 1/4 turn
at a time.

4. Flame failure when

a) Gas pressure to pilot

a) Check pilot gas pressure

a) Relocate pilot gas line or

burner goes to high fire.

regulator too high.

to regulator (should be

use second pilot

1 PSIG maximum).

regulator.

b) Bolts which fasten pilot

b) Check tightness of bolts.

b) Tighten bolts.

casting to burner are not

c) Clean impulse line of any

tight enough.

c) Check impulse line for

dirt particles and relocate

c) Pilot regulator not react-

possible dirt clogging;

duct connection to trans-

ing fast enough to duct

also check impulse line

mit maximum duct

pressure changes.

duct connection to

pressure.

d) Check valve stuck open.

determine if an effective

d) Clean check valve.

pressure is being trans-

e) Too much pilot gas.

mitted to regulator.

e) Reduce pilot gas flow.

5. Flame failure when main

a) Gas pressure to pilot

a) See Check 4a.

a) See Remedy 4a.

burner returns from high

regulator.

to low fire.

b) Under-gassing pilot.

b) Check pilot regulator

b) Open needle on pilot

inlet and outlet gas

adjusting cock slowly

pressures; also check

1/4 turn at a time.

pilot flame.

c) See Check 4c.

c) See Remedy 4c.

6. Main flame too large at

a) Gas pressure too high

a) Check gas pressures.

a) Screw out on main gas

high fire.

at burner inlet.

pressure regulator.
Adjust linkage on gas

b) Combustion air pressure

b) Check air pressure

control valve to hold

too low.

differential.

valve less than full open
when at high fire.

c) Check valve stuck open.

b) Open air shutter on

makeup air blower.

c) Clean check valve.

7. Main flame not

a) Air pressure

a) Check air pressure

a) Close air shutter on

extending beyond face

differential too high.

differential between

makeup air blower.

of burner at high fire.

b) Burner not firing rated

combustion air manifold

b) Screw in on main gas

input.

and main duct.

pressure regulator to

b) Check gas pressure

provide more gas.

c) Burner gas holes

differential.

c) Clean gas holes with #42

plugged.

c) Check gas holes for dirt

MTD drill. Clean air

or lint.

holes with #27 MTD
drill.

8. Main flame long and

a) Velocity past burner

a) Check velocities and

a) Open shutter on

yellow.

lower than 500 FPM.

rotation of main

makeup air blower.

b) Check valve stuck open.

circulating fan.

b) Clean check valve.

Info 140 11/4/03