8
S E R V I C E
M A N U A L
seconds. The display will show “AL Hi”, flash for 3 times,
and then shift to off mode. If the power button is turned
on when flashing “AL Hi” the display will switch from “AL
Hi” flashing to temperature and start normal operation. To
switch back to Lo altitude setting repeat the steps above.
When switching to Hi altitude setting mode, the fuel
pump flow rates levels will all be switched to Level 1 (see
Flow Volume Setting Mode for the Fuel Pump below),
which is a 10% decrease in fuel flow. In the high altitude
setting mode “AL Hi” the fuel flow rate is L1=1, L2=1,
L3=1. The Lo altitude setting mode is 5 (meaning fuel
flow rates are L1= 5, L2= 5, L3= 5).
If the fuel pump flow rate setting mode is changed to
L1=1, L2=1, L3=1, it is shifted to “Hi” altitude setting
mode automatically.
1-46
Combustion Cleaning Mode
When the unit is in the high combustion
mode
for more
than 2 hours continuously, it will automatically shift
to low combustion for 5 minutes. During Combustion
Cleaning mode the unit will change to medium
combustion for 30 seconds, then to low combustion
for 4 minutes, and back to medium combustion for 30
seconds, and then to high combustion. The display will
show “CL:05” (colon flashes at 1.0Hz, and counts
down every minute. The countdown is shown on the
right side of the display in double figures as “04, 03,
02, 01”.
1-47 Flow Volume Setting Mode for The
Fuel Pump
To adjust the Fuel Pump Flow Rate, first get in the Flame
Electric Current AD Value (FECADV) (see Manual Fuel
Pump Operation above) then press both “CLEAR” and
“DAY SELECT” buttons at the same time for 3 seconds.
There are 3 fuel pump modes high, medium, and low,
and each mode can be set to 9 levels.
Low combustion mode L1
➞
L
Medium combustion mode L2
➞
M, M1, M2
High combustion mode L3
➞
H, H1
Fuel Pump Level
1
2
3
4
5
6
7
8
9
Changing rate %
-10 -7.5 -5.0 -2.5 ±0 +2.5 +5.0 +7.5 +10
To shift the Fuel Pump Levels down “L 5”
➞
”L 4”
➞
”L
3”
➞
”L 2”
➞
”L 1” press “DOWN” button.
When Fuel Pump Level is at “L 1” condition, a beep
sound will occur and stay at “L 1”
To shift the Fuel Pump Levels up “L 5”
➞
”L 6”
➞
”L
7”
➞
”L 8”
➞
”L 9” press “UP” button.
When Fuel Pump Level is at “L 9” condition, a beep
sound will occur and stay at “L 9”.
By pressing the “TIMER” button, the set mode will shift
from “L1 ”
➞
”L2 ”
➞
”L3 ”
➞
”P ” with every press.
“P ” is the Manual Fuel Pump Operation mode.
Shift to P1 to P3 by pressing “DOWN” and “UP” buttons.
If the Altitude Setting Mode is change
d
to Hi or back to Lo
then all Fuel Pump Flow Rates are changed, “Lo” is
a
change to
level 5 on
all combustion mode
s
and “Hi” is
a
change to
level
1
on all combustion modes
.
L A S E R H E A T I N G S Y S T E M S
Description
Section 1
