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CONNECT THE
ELECTRICITY
CONNECT THE OIL
LINE
WARNING!! WHEN YOU
INSTALL THE BYPASS
PLUG YOU MUST RUN A
TWO-LINE SYSTEM.
PLACE THE WATER
SYSTEM IN
OPERATION
– 4 –
All wiring must comply with applicable codes and ordinances. The primary relay is
wired to the burner at the factory. Install the aquastat well in the 3/4" tapping at
the front of the heater. Be sure the sensing bulb is inserted all the way into the
well. For Honeywell aquastats, tighten the screw on top of the aquastat to secure
the control to the well. For Carlin EZ-Temp aquastats, refer to the pre-packaged
installation guide for proper set-up procedure. Refer to drawings for correct
models. Connect the power supply to the aquastat and run through a fused dis-
connect switch (attached to heater in field). See Figure 1.
Use #1 or #2 fuel oil. For biofuel blends B6-B100, the burner must be manufac-
tured by Carlin Combustion and be labeled "For use with oil not heavier than
No. 2, bio blends B6-B100 (U.S. only)." A properly sized and rated oil filter
shall be installed in the oil supply line (NFPA 31, 4.5.4).
Gravity System: The oil burner is normally equipped with a single-stage pump
equipped for one line (gravity) flow. Use minimum 3/8" O.D. soft copper tubing and
attach with flared fittings. DO NOT USE COMPRESSION FITTINGS. Install the
shut off valve and oil filter in the oil line. Follow the pump manufacturer's instruc-
tions (attached to the pump).
Lift System: The burner should be ordered with a 2-stage pump. Run a 2-line
system (suction and
instructions attached to pump (plug is in a bag with an instruction sheet).
For any horizontal run exceeding the maximum length specified in Figure 3, or any
lift of more than 10 feet, a booster pump must be used. Booster pumps must be
installed as close to the oil supply tank as possible. Suction and return lines
should be the same diameter and both go within 6" of the bottom of the tank. The
return line should stop slightly above the suction line. Use a minimum of fittings.
Make bends in the tubing with as large a radius as possible. DO NOT USE
COMPRESSION FITTINGS. Caution must be used in the final connection to the
burner so as not to strain the fuel unit. Before attaching the tubing to the burner,
form a coil in the tubing to minimize any vibration. State and local codes must be
followed.
FIGURE 3: MAXIMUM LIFT & HORIZONTAL RUN
1-Pipe
Single Stage
System
Pump
3/8" O.D.
Lift
Tube
0'
65'
4'
45'
7'
31'
8'
16'
Your log (or one similar to this) must be filled out as follows:
Date
Time
1. Fill the tank with water, opening a hot water faucet to allow trapped air to
escape from the heater. Open the cold water inlet valve. Shut off each faucet as it
delivers water that is free of air. Inspect for leaks. Never operate an empty or
partially full heater.
return lines). Install the bypass plug according to the
Horizontal
Run
1/2" O.D.
Tube
100'
100'
100'
64'
Test person's name
2-Pipe
Two-Stage
System
Pump
3/8" O.D.
Lift
Tube
0'
75'
4'
64'
7'
55'
10'
47'
Set temp. o F
Outlet temp. o F
Horizontal
Run
1/2" O.D.
Tube
100'
100'
100'
100'
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