Reflect-O-Ray
®
EDS 6
Installation, Operation & Service
Combustion Research Corporation
6. Turn the gas control knob to the ON position.
7. Reconnect all electric power to the appliance.
8. Replace the control access pane.
9. Set the thermostat to the desired setting.
10. If the appliance does not turn on, set the gas control
knob to OFF and contact a qualified service technician
for assistance.
MAINTENANCE:
Regular preventive maintenance is important in
applications that place a heavy load on system controls,
such as in the commercial cooking and agricultural and
industrial industries because:
1. In applications where the equipment operates 100,000-
200,000 cycles per year. Such heavy cycling can wear
out the gas control in one to two years.
5. Exposure to water, dirt, chemicals, and heat can
damage the gas control and shut down the control
system.
WARNING
FIRE OR EXPLOSION HAZARD
IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE DEATH, SEVERE INJURY
AND/OR PROPERTY DAMAGE.
Do not disassemble the gas control. The gas control
contains no replaceable components. Attempted
disassembly or repair may damage the gas control.
NOTICE
Do not apply a jumper across or short the valve coil
terminals. Doing so may damage the ignition module.
The maintenance program
should include a regular
check out of the gas control. Maintenance frequency must
be determined individually for each application. Some
considerations are:
1.
Cycling frequency.
Appliances that may cycle
100,000 times annually should be checked monthly.
2.
Intermittent use.
Appliances that are used seasonally
should be checked before shutdown and again before
the next use.
3.
Consequence of unexpected shutdown.
Where the
cost of an unexpected shutdown would be high, the
system should be checked more often.
4.
Dusty, wet or corrosive environment.
Since these
environments can cause the gas control to deteriorate
more rapidly, the system should be checked more
often.
The gas control should be replaced if :
1. It does not perform properly on checkout or trouble-
shooting.
2. The gas control knob is hard to turn or push down, or it
fails to pop back up when released.
1. The gas control is likely to have operated for more than
200,000 cycles.
CHECKOUT PROCEDURE:
Before leaving installation, several complete operating
cycles should be observed to see that all components are
functioning properly.
1. Before turning on the main electrical power switch, be
sure all gas supply lines are purged of air.
2. Close main manual shutoff valve and wait for 5
minutes, then turn "A" valve to "ON" position.
CAUTION:
Check for positive gas seal using soap
solution on valve inlet and all upstream pipe connections.
DO NOT USE OPEN FLAME FOR TESTING.
3. Turn on main electrical power switch and close
thermostat contacts.
4. After the control is powered it will automatically
energize the spark and the gas valve.
5. The sensing probe detects the presence of the low fire
flame and the control de-energizes the spark and the
valve will remain open. Check valve outlet and other
downstream pipe connections with a soap solution.
6. Turn the thermostat to a low dial setting to open
contacts. The main gas flame should be extinguished.
7. For 100% shutoff check, set thermostat to low dial
setting (system off). Disconnect sensing probe lead at
control terminal.
8. Turn thermostat to a high dial setting to energize spark
ignition and valve. The gas should ignite. After 30
seconds, the system should "lockout" and burner
functions are off (no gas flow, no spark). If the system
does not go into "lockout," follow the installation
instructions to replace the control. Repeat the 100%
shutoff check. Note blower will not shut down when
ignition "lockout" occurs.
9. Set thermostat again to a low dial setting (system off),
connect probe lead to control terminal. Set thermostat
to normal setting to put system back in service.
!
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