Dayton 1RVT8 - Manual (Page 18)

Dayton Installation, Operation, Maintenance and Parts Manual
Dayton Patio Heaters
®
1RVT7 and 1RVT8
18
Sequence of Operation:
Starting Circuit:
When voltage is applied to L1 and L2, a circuit is
completed from L1 via the blower motor to L2. The
blower fan is mounted in the control box and rated to
supply sufficient air for combustion. Air pressure
generated by the blower will cause the normally open
pressure switch to close. Another circuit is completed
from L1 to the spark ignition module and back to L2.
After a seven (7) second pre-purge, the spark electrode
and gas valve are energized simultaneously. The trial for
ignition is fifteen seconds.
Running Circuit:
After ignition, the flame rod monitors the flame. As long
as a flame is present, the valve is held open. If the flame
is lost, the control acts to close the valve within one
second, and a new trial sequence identical to that at
start-up is initiated. If proof of flame is not established
within the 15 second trial for ignition, the unit will retry
two additional times before entering lockout mode. If
lockout occurs, the control can be reset by briefly
interrupting the power source.
Operation
Important! Before operating the heater, conduct
the following safety procedures:
• Check for any possible gas leaks.
• Alert all persons about the hazards of high surface
temperature and to keep a safe distance away in
order to avoid burns and possible clothing ignition.
• Provide supervision when young children are in the
area of the heater.
• Check to make sure clothing isn’t hung from the
heater and that flammable materials are not placed
on or near the heater.
• Check that all guards or protective devices are in place
and secure.
• Check the hose assembly for excessive abrasion, wear
or damage. If necessary replace.
• Check control compartment, burners and circulating
air passages for debris. If necessary, clean the debris.
WARNING
!
Improper operation of
the heater may result in
explosion, fire, shock and
carbon monoxide
poisoning. Follow all
guidelines and warnings in this manual and national,
state, provincial and local codes. Always conduct safety
checks before operating the heater. Do not operate the
heater in unsafe conditions.