U.S. Boiler Company MPO - IQ, Service Instructions Manual

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Figure 4A: Partial Front View - Burner Swing Door Mounted to Boiler - Fully Closed and Secured
Step 4.
Disconnect burner power cord from receptacle
located in lower right corner of jacket front panel.
Step 5. Door can be swung to the fully open position,
approximately 90° to 120°, with the burner mounted
providing that there is 19" of clearance to the adjacent
wall, see Figures 1 and 4B.
NOTE: If reduced clearance prevents the door from
opening fully, one of the following can provide full
access:
a. Burner can be removed to allow full rotation of
door.
b. Door with burner mounted can be lifted off
mounting bracket and set aside during servicing.
c. The door mounting hardware is reversible from
left side hinge (as shipped) to right side hinge.
To reverse hinge arrangement (see Figure 4A):
• Lift door off mounting bracket and set
aside.
• Remove mounting bracket and hardware
from left side.
• Remove upper jacket front panel retaining
screw (5/16" x 1/2" lg. Phillip Pan head
machine screw) from right side of door
and re-install in vacated upper mounting
bracket tapping. Do not tighten.
• Move lower jacket panel retaining screw
from right side to left tapping. Do not
tighten.
• Rotate door mounting bracket 180°.
Insert 5/16" cap screw through top hole in
bracket and install in upper vacated jacket
hole on right side of door.
• Install second 5/16" cap through bracket
hole into lower vacated tapping on right
side.
• Tighten both sets of hardware to secure
jacket and mounting bracket.
• Lift door and place integral cast hinge
pins on door into slotted mounting bracket
holes.
2. Perform routine inspection, service or cleaning as
necessary.
3. To close Burner Swing Door (see Figures 4A and 4B):
Step 1. From the fully open position, rotate Burner Swing
Door to the closed position.
II. PACKAGED BOILER ASSEMBLY - TRIM & CONTROLS (cont'd)