Reflect-O-Ray
®
Oil Fired EDS 3.5
Installation, Operation & Service
Page 42
Combustion Research Corporation
OIL PUMP
Conversion from two pipe to one pipe
system.
WARNING: The burner is shipped from the factory
with the pump set to operate on a two-pipe system. It
is not recommended that the burner be operated as a
one-pipe system.
To operate on SINGLE pipe system, the by-pass plug
must be removed or damage will occur to the pump shaft
seal.
Convert the pump for operation on a single pipe system by
removing the by-pass plug. To remove the by-pass plug:
40 F3 BURNER ASSEMBLY
1. Remove the RETURN PIPE (1) from the pump
assembly.
2. Remove the BYPASS PLUG (2) using a 2.5mm allen
wrench.
3. Replace the RETURN PIPE assembly and insert a 3/8”
pipe plug in the outlet (3), or contact your representative
for a plug that can be inserted into the pump.
MECTRON 3 BURNER ASSEMBLY
1. Remove the PUMP COVER (1) by removing the four
SCREWS (8).
2. Remove the PUMP STRAINER (2), unscrew and
remove BYPASS PLUG (3).
3. Replace the strainer and pump cover. Tighten the four
SCREWS (8) securely.
NOTE: Be sure the O-Ring is properly seated in the
PUMP HOUSING (4) before tightening the pump cover.
Pinching or damaging the O-Ring will result in an oil
leak.
Connect the pipe connector to the SUCTION PORT (7) of
the pump. Attach the required piping to the pipe
connector. Be sure that the RETURN PORT (11) is
plugged and securely tightened. Contact your
representative to obtain the proper plug assembly.
NOTE: Pump pressure is set at the factory however if
alteration of Btu input or conversion to single pipe system
is require, the pump pressure must be set at the time of
initial start-up. A pressure gauge is attached to the
PRESSURE PORT (10) for pressure reading. A quantity of
two PIPE CONNECTORS (6) are installed and supplied
with the burner assembly. These pipe connectors are fitted
with adapters (5) for connection to one female 1/4" NPT
and one male 1/4" NPT. These connectors must be used.
All pump port threads are British Parallel thread design.
Direct connection of NPT threads to the pump will damage
the pump body. Riello manometers and vacuum gauges
do not require any adapters, and can be safely connected
directly to pump ports. An NPT / metric adapter must be
used when connecting other gauge models
.
MECTRON 3 BURNER ASSEMBLY
1
2
3
4
5
7
11
10
6
8
40 F3 BURNER ASSEMBLY
2
1
3
