Heater Control; Start-Up Instructions; Shut-Down Instructions - L.B.White Oval 80 HP Instrucciones Y Manual Del Propietario

16
Oval 80 Radiant Tube Heaters
Heater Controls
WARNING
Electrical Shock Hazard
■ Disconnect the heater's electrical supply before
interconnecting the temperature control.
■ Failure to disconnect the electrical supply will
result in electrical shock.
■ Electrical shock will cause severe injury or
death.
The Oval 80 high pressure heater is operated by the
building's environmental control system. To accomplish
this, the heater must be connected to an electrical
outlet controlled by a relay or set of contacts that is
closed and opened by the building controller. A series
tap thermostat may be used to operate the tube heater.
Connecting Series Tap
Thermostat Kit
• Connect power cord of heater to female side of
thermostat cord set.
• Plug the male side of cord set into an approved
extension cord or to wall outlet.

Start-Up Instructions

Follow steps 1 - 6 on initial start-up after heater instal-
lation. For normal start-up, set the building controller
above room temperature. The heater will start.
1. Open all manual fuel supply valves and check for
gas leaks using approved leak detectors.
2. Connect the electrical cord to an approved electri-
cal outlet.
3. This heater includes a direct ignition control
module for purposes of controlling the timing of the
ignition process of the heater as well as monitoring
of the safety functions. A red FAULT LED (light
emitting diode) is on the burner box side. A
flashing red light identifies a problem
in the operation of the heater. Refer to the
troubleshooting decal on the interior of the access
panel for assistance in troubleshooting.
4. On a call for heat, the ON green light will be lit and
the motor will start up and run for 5 seconds. See
Fig. 12."
Owner's Manual • Oval 80
FIG. 12
ON
FAULT
5. This pre-purge is a safety feature and a normal op-
erational characteristic prior to ignition taking place.
After five (5) seconds, the igniter will spark.
6. The ignition control will make up to three trials for
ignition. Each trial for ignition will take approximate-
ly ten seconds. If the main burner does not light,
the system will lock out, and a three flash pattern
will be given by the red LED.
NOTE: It is normal for air to be trapped in the gas
hose on new installations. The heater may try more
than once for ignition before the air is finally purged
from the line and ignition takes place.

Shut-Down Instructions

If the heater is to be shut down for cleaning, mainte-
nance or repair, follow steps 1-4. Otherwise, set the
building's thermostat to off or no heat for standard
shut down.
1. Close all manual fuel supply valves.
2. With the heater lit, allow the heater to burn off
excess fuel in gas supply hose.
3. If applicable, turn the thermostat to off or no heat
position.
4. Disconnect the heater from the electrical supply.
GREEN
RED