Thermo King TriPac Envidia, Installation Manual

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55
Heater Fuel Pump and Fuel Line Installation
(Heat Option)
Special Tools Required
Utility Knife
Hose Cutting Tool (204-677)
Tank Mounted Fuel Pump
1. Install the fuel pump and rubber clamp onto the tank mounted bracket securely.
2. Attach a fuel line hose from the fuel pick-up supply to the inlet end of the fuel pump and secure with supplied
hose clamps.
3. Attach the short rubber hose connection to the outlet end of the fuel pump and secure with supplied hose
clamps.
4. Route the plastic fuel line (installed earlier on the heater) to the fuel pump and cut to length. Insert the fuel line
into the rubber hose connection until it butts up tight with the fuel pump’s outlet pipe. Secure with supplied
hose clamp.
NOTE: The fuel line must be installed correctly to prevent air bubbles (DETAIL A).
The fuel line from the pickup tube, to fuel pump, to heater should be routed at a continuous rise.
CAUTION: Only use a hose cutter or utility knife to cut plastic fuel lines. Do not use a wire cutter as this will pinch the
plastic fuel line closed.
Remote Mounted Fuel Pump with L-Bracket
Choose a protected location under the cab close to the fuel pick-up tube and heater and install the supplied L-bracket
securely with TEK screws.
1. Install the fuel pump into the rubber mounting clamp and then onto the L-bracket.
2. Position the fuel pump at a 15 to 35 degree angle with the outlet end facing up (outlet end has connector and
smaller barb fitting) and tighten mounting hardware securely.
3. Attach the short rubber hose connection to the outlet end of the fuel pump and secure with supplied hose
clamp.
4. Route the plastic fuel line (installed earlier on the heater) to the fuel pump and cut to length. Insert the fuel line
into the rubber hose connection until it butts up tight with the fuel pump’s outlet pipe. Secure with supplied
hose clamp.
NOTE: The fuel line must be installed correctly to prevent air bubbles (DETAIL A).
The fuel line from the pickup tube, to fuel pump, to heater should be routed at a continuous rise.
CAUTION: Only use a hose cutter or utility knife to cut plastic fuel lines. Do not use a wire cutter as this will pinch the
plastic fuel line closed
.
5. Attach fuel line from the fuel pick-up supply to the inlet end of the fuel pump and secure with supplied hose
clamps.