Start-Up Instructions; Shut-Down Instructions - L.B. White L-40 Mode D'emploi

Start-Up Instructions

Follow steps 1-5 on initial start up after heater
installation by a qualified gas heater service
person. For normal startup, simply turn the
building temperature control above room
temperature.
1. Connect the heater to an approved
electrical supply and building's temperature
control system.
2. Open all gas supply valves to the heater
and check for gas leaks at all connections
using approved leak detectors.
3. Energize the building's temperature control
system to provide power to the heater.
4. Position the ON/OFF switch on the heater's
control box to ON. See Fig. 18.
5. Set the building's temperature control to
desired temperature.
■ It is normal for air to be trapped in the gas
line on new installations.
■ The heater may attempt more than one
ignition trial before air is purged from the
line and ignition occurs.
This heater includes a spark ignition control
module for purposes of controlling the timing
of the ignition process of the heater as well as
monitoring the safety functions. The control
module is located in the control box.
On a call for heat, the igniter will spark
and the gas control valve will open shortly
afterward. The igniter will continue to spark for
approximately 10 seconds. Flame sense, as
monitored by the ignition control, will keep the
gas valve open and main burner in operation
until proper temperature is achieved.
The ignition control module will make up to 3
trials for ignition. There will be a 15 second
time span between each ignition trial. If
ignition is not achieved after the third trial, a
15 minute wait period will occur. After the 15
minute time span has elapsed, the heater will
make three more trials for ignition. This pro-
L-40 / H-40 Spark Ignition Radiant Brooder
cess will continue as long as there is a call for heat
from the building's temperature control system.
FIG. 18

Shut-Down Instructions

The building's environmental temperature control
system will shut the heater down after proper
temperature has been achieved.
If the heater is to be shut down for cleaning,
maintenance or service:
1. Shut off all gas supply valves to the heaters.
2. Allow heaters to burn off fuel gas remaining in the
gas supply line.
3. Position the ON/OFF switch to OFF.
4. Disconnect the heater from its electrical supply.
Owner's Manual • L-40 / H-40
SWITCH
19