Lanair DHI 300 - Manual (Page 11)

Section 2 - Heater Installation
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General Requirements
1. Do not install the heater on a combustible surface of any kind. For minimum clearance to
combustible material (see Page 9)
2. Install the heater in a location to utilize total heat throw.
3. Install the heater in a location to permit a correct outdoor chimney exit to eliminate
down drafts, and provide easy chimney installation and maintenance. Class A chimney
MUST be used when passing through any wall or ceiling. See Section 3 Chimney
Installation
4. Install the heater in a location to permit the fuel supply to be as close as possible.
5. Do not install the heater more than 10 feet above the top of the fuel supply tank.
6. Before suspending the heater check the supporting structure and reinforce if necessary
to support the weight of the heater/system.
7. Use 3/8” steel threaded rod to suspend the heater from a capable load carrying ceiling
structure when not using the Lanair Waste Oil Storage Tank.
8. The heater must be suspended level for proper operation. A heater that is not level could
cause a hazardous situation in which personal injury or property damage may result.
Section 13 - Service / Maintenance
QUESTIONS?... Contact Customer Service at 1-800-753-1601 M-F 8:00 am- 4:15 pm CST
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5. Use an industrial type canister vacuum cleaner with a high efficiency filter, or ash rake to
pull the ash to the front of the heat exchanger tubes for removal. Failure to clean heat
exchanger tubes annually will impair draft. Vacuum or shovel the ash from the combus-
tion chamber. Inspect the combustion chamber and target brick. Use care when cleaning
the combustion chamber area so the target brick is not disturbed. Insufficient or irregu-
lar cleaning intervals will cause inefficiency, random shutdowns, and extreme damage to
the combustion chamber.
6. Before replacing the gun/chamber access doors, replace the white gasket seals on the
doors (contact the Lanair Service Department). When replacing the gaskets apply a light
film of gasket adhesive to adhere the new gasket to the door. Lube the threads of the
screws with a high temperature lubricant. If any screws are stripped or broken, replace.
7. Re-install the galvanized cover panels.
8. Re-install the inspection port cover. Replace burner.
9. Remove the manifold clean out port cover on the front of the unit (marked 5 on illustra-
tion on page 41). Using an industrial type canister vacuum cleaner with a high efficiency
filter, remove all ash accumulation.
10. Install a new gasket and re-attach the clean out port cover using the screws removed
previously. Check your draft reading to make sure your barometric damper is properly
set (See Section 5).
11. Reconnect all power at the main breaker box, wait ten minutes before turning the ther-
mostat up. Your heater is now ready for normal operation.
NOTE: When changing the target brick, call the Lanair Service Department for assistance.
CAUTION: THE CLEAN OUT PANEL MUST HAVE AN AIR TIGHT SEAL TO
PREVENT EXTREME DAMAGE TO THE COMBUSTION CHAMBER
!
WARNING: DO NOT OPERATE YOUR FURNACE WITH CLEAN OUT PANELS
OR PORTS REMOVED
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CAUTION: TO AVOID SCREW BREAKAGE, DO NOT OVER-TIGHTEN
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CAUTION: DUCT WORK RUNS MUST BE DESIGNED AND INSTALLED BY A
LISCENSED HEATING CONTRACTOR
!