Install Instructions
MNEZ123 111820
– 6 –
Model EZ 1,2,3 and LF Oil/Bio-fuel Burners — Instruction Manual
HORIZONAL or VERTICAL MOUNTING
2. Prepare Site • Assemble Burner • Mount Burner (continued)
Combustion/ventilation air checklist
: Verify that openings are unobstructed.
: Verify that appliance space and air source spaces are free of:
• Gasoline or other ammable liquids or vapors.
• Combustible materials.
• Air contaminants and chemicals, such as laundry products,
paint, thinner, varnish, etc.
: Conrm with the building owner that the area will be kept free
of these materials at all times and that air openings will be kept
unobstructed.
Optional Combustion Air Intake Systems
Even if using an (optional) air intake system, make sure
the space provides enough ventilation to prevent overheat-
ing of the appliance, burner and controls. The equipment
room must have combustion air/ventilation openings sized
large enough to provide air for cooling the equipment and
for combustion when needed. Failure to comply can result
in severe personal injury, death or substantial property
damage.
CAP System
The CAP System is designed to shut down the burner in the event the
outside combustion air supply becomes blocked. At each burner startup,
the system will check the air intake during pre-purge (Valve Delay On). If
the air is blocked, the control will abort ignition and shutdown the burner.
If the air intake is not blocked during this startup test, but becomes
blocked during normal burner operation, the burner will shut down if the
air remains blocked for 20 seconds. Following any shutdown, the burner
will be permitted to recycle 3 times following a 1 minute delay. The
system will lock out the burner if the blockage continues throughout 3
recycles during any single call for heat.
Air piping
Install 3” PVC vent pipe to provide outside air to the CAP System
IMPORTANT: For proper operation of the CAP System, air inlet
piping should only use schedule 40 or 80 PVC pipe (maximum of 80’
total with each elbow equal to 10’).
Combustion air outdoor termination, use PVC elbow (downward fac-
ing) and bird screen provided. Maintain 12” clearance above highest
anticipated snow level. Avoid locations where snow may drift and
block combustion air. Ice or snow may cause burner to shut down
if combustion air becomes obstructed. Combustion air termination
must be min. 12” from or below doors, windows or gravity inlet. USE
SWEEP ELBOWS FOR ALL COMBUSTION AIR PIPING. DO NOT
USE short radius elbows for combustion air piping – burner perfor-
mance could be affected.
See CAP System manual for additional setup and burner adjustment
information.
The burner may operate successfully under
momentary downdraft conditions, but sus-
tained downdraft is unsafe. This can occur
with an inadequate or incorrectly installed
chimney/vent. It can also occur in rooms/
buildings equipped with exhaust fans or un-
sealed return air ducts.
Always check operation of the burner under
all conditions to verify vent system operates
correctly.
Combustion/ventilation air openings:
Always provide combustion/ventilation air to
the appliance room sufcient to prevent any
negative pressure in the space — if neces-
sary, install new or additional air openings.
See instructions in this manual for combus-
tion air openings.
Piped combustion air applications:
Burners with piped combustion air require a
Carlin CAP System or a Field CAS-1 com-
bustion air system.
Failure to correct downdraft or negative room
pressure operation could result in severe
personal injury, death or substantial property
damage.