Service Instructions; Drive Components - L.B. White Foreman CI230 Manuel Du Propriétaire Et Instructions

20
Foreman Ductable Dual Fuel Indirect-Fired Heater
ANNUALLY
■ Clean and check the igniter and flame sensor for
cracks.
■ Test the high limit heat switches to ensure proper
function. (See instructions for same in the Servicing
section of this manual)
■ Regulators can wear out and function improperly.
Have your gas supplier check the date codes on all
regulators installed and check delivery pressures to
the heater to make sure that the regulator is reliable.

Service Instructions

WARNING
Burn Hazard
■ Heater surfaces are hot for a period of time
after the heater has been shut down.
■ Allow the heater to cool before performing
service, maintenance, or cleaning.
■ Failure to follow this warning will result in
burns causing injury.
WARNING
Fire and Explosion Hazard
■ Do not disassemble or attempt to repair any
heater components or gas train components.
■ All component parts must be replaced if
defects are found.
■ Failure to follow this warning will result in
fire or explosions, causing property damage,
injury, or death.
1. Close the fuel supply valve to the heater and discon-
nect the electrical supply before servicing unless
necessary for your service procedure.
2. Clean the heater's orifice with compressed air or a
soft, dry rag. Do not use files, drills, broaches, etc. to
clean the orifice hole. Doing so will enlarge the hole,
causing combustion or ignition problems. Replace
the orifice if it cannot be cleaned properly.
3. The high limit switches, HEAT/VENT switch, and
thermostat can be tested by disconnecting the leads
at the component, and jumpering the leads together:
-- Reconnect the electrical supply and
open fuel supply valves.
-- If the heater lights, the component is
defective and must be replaced.
-- Do not leave the jumper on or operate
the heater if the part is defective.
Replace the part immediately.
-- An alternate method for checking the
components is to perform a continuity
check.
Owner's Manual • Foreman
4. Servicing the differential air pressure switch:
-- The differential pressure switch is
non- adjustable. If the switch does
not make the circuit after inspec-
tion of tubes and orifices, it must be
replaced.
5. Open or remove the respective case panel for
access to fan related components.
6. For reassembly, reverse the respective service
procedure. Ensure gas connections are tightened
securely.
7. After servicing, start the heater to ensure proper
operation and check for gas leaks.
8. A replacement fan key can be made by using
3/16 square x 1 in. bar stock.

Drive Components

Accessing to the blower motor, fan drive
components,and electrical control.
■ Remove rear panel by unlatching (CCW) the
lock and pulling the panel out.
For Foreman 230
■ Unlatch the top panel from within the heater and
pull the panel toward the rear to unlock the tab.
■ Remove the top panel.