Gas Conversions - Weil-McLain Eco Tec 2 Series Manual

ECO ® Tec series 2 gas-fired water boiler – boiler manual

Gas conversions

Prepare boiler for propane —
ECO Tec
80/110/150/199
(if required)
Propane operation
ALL boilers must be converted for
propane operation
Converting an existing natural gas-fired
boiler for propane
installed, you must turn off gas supply, turn
off power and allow boiler to cool before
proceeding. You must also completely test the
boiler after conversion to adjust gas valve to
proper setting, verify performance, and start
up the boiler following instructions beginning
on page 124 of this manual.
Verify propane gas venturi
Figure 10, page 15 LP gas venturi will have a
black label and will be clearly labeled "LP".
Must change control settings to proper gas
type.
Failure to comply could result in severe
personal injury, death or substantial property
damage.
This conversion kit shall be installed by
a qualified service agency in accordance
with the manufacturer's instructions and
all applicable codes and requirements of the
authority having jurisdiction. If the information
in these instructions are not followed exactly,
a fire, an explosion or production of carbon
monoxide may result causing property damage,
personal injury or loss of life. The qualified
service agency is responsible for the proper
installation of this kit. The installation is not
proper and complete until the operation of the
converted appliance is checked as specified in the
manufacturer's instructions.
• Follow all instructions in proper order.
• Do not tamper with venturi. DO NOT change or modify
venturi in any way.
• Dispose of an uninstalled venturi; do not leave in the
building.
• Caution – the gas supply shall be shut off prior to
disconnecting the electrical power, before proceeding
with the conversion.
• Whenever the venturi is removed, all gaskets must be
replaced with new gaskets.
14
conversion kits
ECO Tec
Venturi - Liquefied Petroleum (Propane) Gas
Screw Pan Hd. T20 M4-.7x12mm w/Sq. Con. Lock Washer
Washer .64 I.D. x .93 O.D. Garlock
.
O-Ring 3.53mm x 63.50 I.D. mm Black
— For a boiler already
Gasket 2-Lips EPDM Ring 50 Dia. mm
Label Gas Conversion
Orifice Gas Liquefied Petroleum (Propane) 80/110 ECO Tec
Instructions Conversion Nat to LP Gas
ECO Tec
Venturi - Liquefied Petroleum (Propane) Gas
— See
Screw Pan Hd. T20 M4-.7x12mm w/Sq. Con. Lock Washer
Washer .64 I.D. x .93 O.D. Garlock
O-Ring 3.53mm x 63.50 I. D. mm Black
Gasket 2-Lips EPDM Ring 50 Dia. mm
Label Gas Conversion
Orifice Gas Liquefied Petroleum (Propane) 150/199 ECO Tec
Instructions Conversion Nat to LP Gas
ECO Tec 199 LP P/N 510-811-417 NG to Propane Gas Conversion Kit contents:
Venturi - Liquefied Petroleum (Propane) Gas
Screw Pan Hd. T20 M4-.7x12mm w/Sq. Con. Lock Washer
Washer .64 I.D. x .93 O.D. Garlock
O-Ring 3mm x 70mm Black
Gasket 2-Lips EPDM Ring 50 Dia. mm
Label Gas Conversion
Orifice Gas Liquefied Petroleum (Propane) 150/199 ECO Tec
Instructions Conversion Nat to LP Gas
Natural Gas to Liquefied Petroleum (Propane)
80/110 LP P/N 510-811-415 NG to Propane Gas Conversion Kit contents:
150 LP P/N 510-811-416 NG to Propane Gas Conversion Kit contents:
Pipe sizing for propane gas
Contact gas supplier to size pipes, tanks and 100% lockup gas
pressure regulator.
Natural and Propane supply pressure
1. Adjust propane supply regulator provided by gas supplier
between the pressure listed below:
2. Pressure required at gas valve inlet pressure port:
a. Maximum: 14" (356 mm) w.c. with no flow (lockup).
b. Minimum gas pressure, with gas flowing (verify during
boiler startup, while boiler is at high fire): 3½" (89 mm) w.c.
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Part number 550-100-270/0122