Install Instructions
Gas conversions
7. When water begins to exit from the supply outlet,
close the boiler drain valve (item 12).
8. OPEN isolation valve 11. Close this valve when
water begins to run from the return isolation shut-
off valve (item 11).
9. Continue filling by opening the boiler drain valve
(item 12) until water flows from supply outlet
isolation shut-off valve (item 10). Then CLOSE
isolation valve 10.
10. The test pressure should be 1-½ times the pressure
setting of the relief valve to be installed on the
boiler (45 psig for a 30-psig relief valve; 75 psig
for a 50-psig relief valve; or 120 psig for a 80-psig
relief valve). Open boiler drain valve until desired
pressure is achieved.
11. Hold at test pressure for 10 minutes.
Do not leave boiler unattended. A cold
water fill could expand and cause exces-
sive pressure, resulting in severe personal
injury, death or substantial property
damage.
12. Make sure constant gauge pressure has been main-
tained throughout test. Check for leaks. Repair if
found.
Do not use petroleum-based cleaning
or sealing compounds in boiler system.
Gaskets and seals in the system may be
damaged. This can result in substantial
property damage.
Drain and remove fittings
1. Disconnect fill water hose from water source.
2. Drain boiler through drain valve.
Use caution when releasing pressure from
the boiler. Rapid water flow could cause
injury.
3. Remove hose after draining.
4. Remove nipples and valves unless they will remain
for use in the system piping.
5. Remove plug and install relief valve as specified in
the following WARNING.
Remove plug from relief valve tee. Install
the relief valve in the ¾” tee, see page 39
to install relief valve discharge piping.
Failure to install the boiler relief valve
could result in severe personal injury,
death or substantial property damage.
&IGURE Natural and Liquefied Petroleum (Propane) gas
conversion kits
,EAKSMUSTBEREPAIREDATONCE Fail-
ure to do so can damage boiler, resulting
in substantial property damage.
Part number 550-100-131/0715
– 12 –
™
GAS-FIRED WATER BOILER — Boiler Manual
Boiler hydrostatic test
(continued)
Prepare boiler for propane —
Evergreen™ 220/299/300/399 (if required)
Propane operation
!,,Evergreen™BOILERSMUSTBECONVERTED
FORPROPANEOPERATION
.
#ONVERTINGANEXISTINGNATURALGASlREDBOILERFOR
PROPANE
— For a boiler already 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 verify performance and
start up the boiler following instructions beginning on
page 82 of this manual.
6ERIFYPROPANEGASVENTURI— See Figure 9, page 13
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 is 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
supplied with the kit.
Natural Gas to Liquefied Petroleum (Propane)
conversion kits
%6',0P/N 383-900-064 NG to Propane Gas Conversion Kit contents:
511-050-219 1
562-150-292 3
562-248-765 1
590-318-102 1
590-318-103 1
550-225-336 1
550-142-871 1