Airxcel Aqua-Hot 100 Series, Руководство по обслуживанию

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ETS Module ETS Module
©Aqua-Hot®
125-DN1 Service Manual REV 220421
©Aqua-Hot®
125-DN1 Service Manual REV 220421
p. 37 p. 36
High Altitude Replacement
Fuel Filter
• A fuel filter should be installed to ensure that clean fuel
is delivered to the burner at all times. The fuel filter type
should be 25-30 microns.
• Make sure the fuel filter is installed in an accessible area,
so it can be replaced during service.
• The filter can be mounted vertically or horizontally; note the
installation position and direction of flow (see Figure 78).
Fuel Pump
• The fuel pump is a combined pumping, metering, and shut-
off system. It pumps fuel from the vehicle supply to the fuel
connection piece to the burner via the fuel lines.
• The High Altitude Bypass is installed with the fuel pump for
use in altitudes over 5,000 ft.
• Fuel Pump is required to be installed horizontally. It is not
recommended to mount the assembly rotated 180° (see
Figure 79).
Do NOT use bio-diesel with the copper fuel lines. Doing so will
result in damage to the burner and fuel system. Please follow
instructions to ensure safe operation. Always check for any
fuel leaks before operating the burner.
Figure 73
2
1 4
3
5 6
8
9
7
5
1. Fuel Line Coupler
2. High Altitude Bypass
3. Fuel Pump
4. Fuel Filter
5. Fuel Line
6. Max Delivery Height (6) = 9’9”
7. Max Delivery Length (6 + 7) = 28’ 3”
8. Max Suction Length (8 + 9) = 9’9”
9. Max Suction Height (9) = 3’ 3”
Fuel Lines Requirements
• Parts needed:
• PLX-125-HA1, High Altitude Kit
• Potential other parts needed:
▪ PLE-125-FL1, Kit, 100 Series Fuel Line (only if fuel
lines are damaged)
▪ PLX-125-003, Fuel Filter, 100 Series (only if fuel filter
is damaged)
• Please refer to the example diagram shown above.
• The fuel line should not be descending from the fuel pump
to the burner - see Figure 75.
• The fuel line should be properly secured to avoid sagging.
• The fuel line must be installed in a manner that won’t cause
damage to the fuel line (i.e. close to exhaust).
• The fuel line must be secured to the connections by hose
clamps.
• The fuel line should be mounted and secured with hose
clamps. The hose clamp must be tightened so that the two
tabs on the clamp touch each other.
• The fuel line must be only steel, copper, rubber, or plastic
lines made of plasticized, light, and temperature-stabilized
PA 11 or PA 12.
High Altitude Bypass Replacement:
1. Remove fuel line from the burner before performing the
Fuel Purge Procedure (Page 39).
2. Remove old high altitude assembly.
3.
Check fuel lines and fuel filter for damage.
4. Replace as necessary. See the diagram above and Pages
36-39 for further instructions.
Figure 74
Figure 75
High Altitude Bypass Orientation
BEST - 0° BEST - 0°
Line from
Filter
Line to
Burner
High Altitude Replacement
NOTE: The fuel lines must be secured and supported properly to avoid air
traps or bubbles. Avoid unnecessary dips or bends, the line should not run
downward from the fuel pump.
Fuel Line to Coupler Hose
A Clamp C Fuel Hose B Coupler
B C A
Bubble
WRONG
B C A
CORRECT
CORRECT
B
C
A
WRONG
Bubble
B
C
A