Clean Energy CE-340, Owner'S Manual, Page: 26 / 54

26
BOILER CONTROLS AND SAFETY COMPONENTS
Figure 23: Priming the Metering Pump System
(1) Refer to Figure 23.
(2) Remove the 1/2” NPT plug and
open the ball valve on the inlet
of the filter.
(3) Pour oil into the inlet of the
filter until the suction oil line,
filter, and pump head are full.
NOTICE:
A funnel can also be
used to help direct the oil into the
inlet of the filter.
(4) Close the ball valve and insert
the 1/2” NPT plug.
(5) If the pressure oil line(from
the pump to the boiler) is
longer than 25 feet it is
recommended to disconnect
the oil line at the boiler and
position a bucket under the
line to catch the oil.
OPEN
FILL BALL
VALVE
BLEEDER
VALVE
CE70031
REMOVE
1/2" NPT
PLUG
(1) Limit Control / Low Water Cut-Off
The Limit Control shuts the burner off if the water temperature in the boiler reaches the
water temperature set point. The Limit Control will automatically reset when the
water temperature drops to the required temperature.
The Low Water Cut-Off shuts the burner off if the the water level in the boiler goes below
the Low Water Cut-Off sensor.
(2) High Limit Aquastat (Manual Reset)
The High Limit Aquastat shuts the burner off if the water temperature in the boiler reaches
the High Limit water temperature set point. The High Limit Aquastat must be manually
reset if it functions.
(3) Pressure Relief Valve
The Pressure Relief Valve will release excess pressure in the boiler (set at 30 psi).
NOTE: Install pipe from the pressure relief valve to within four inches of the floor to
direct any release away from the boiler
(4) Temperature / Pressure Guage
This guage is used to monitor the water temperature and pressure within the boiler.
PREPARING THE METERING PUMP FOR START UP