Start-Up - Weil-McLain Gold CGi Series 2 User Manual

GOLD
7a
Start-up —
Check for gas leaks
Determine if water treatment is needed
Verify water chemistry
Consult local water treatment companies for unusually
hard water areas (above 7 grains hardness) or low pH
water conditions (below 7.0). Boiler water pH of 7.0
to 8.5 is recommended.
Freeze protection (when used)
Use antifreeze made especially for hydronic systems.
Inhibited propylene glycol is recommended.
1. Determine
32
CGi Series 2 Gas-Fired Water Boiler
preparation
— Your propane supplier mixes an odorant with the propane to make
Propane boilers only
its presence detectable. In some instances, the odorant can fade and the gas may no longer
have an odor.
• Propane gas can accumulate at floor level. Smell near the floor for the gas odorant or any
unusual odor. If you suspect a leak, do not attempt to light the pilot.
• Use caution when attempting to light the propane pilot. This should be done by a qualified
service technician, particularly if pilot outages are common.
• Periodically check the odorant level of your gas.
• Inspect boiler and system at least yearly to make sure all gas piping is leak-tight.
• Consult your propane supplier regarding installation of a gas leak detector. There are
some products on the market intended for this purpose. Your supplier may be able to
suggest an appropriate device.
Before starting the boiler, and during initial operation, smell near the floor and around the
boiler for gas odorant or any unusual odor. Do not proceed with start-up if there is any
indication of a gas leak. Repair any leak at once.
Do not use
petroleum-based
cleaning or sealing compounds
boiler system. Severe damage to
boiler will occur, resulting in
substantial property damage.
Do not use
ethylene glycol,
automotive or
. Severe personal injury
antifreeze
or death can result.
according to system
antifreeze quantity
in
water content. Boiler water content is listed on
page 63. Remember to include expansion tank
water content.
2. Follow antifreeze manufacturer's instructions.
3. A 50% solution of propylene glycol/water provides
maximum protection to about -30 °F.
4. Local codes may require
actual disconnect from city water supply.
5. When using antifreeze in a system with automatic
undiluted
fill, install a water meter to monitor water makeup.
Glycol will leak before the water begins to leak,
causing glycol level to drop. Added water will dilute
the antifreeze, reducing the freeze protection level.
Eliminate all system leaks.
Continual fresh makeup water will
reduce boiler life. Minerals can
build up in sections, reducing heat
transfer, overheating cast iron, and
causing section failure.
back flow preventer
Part Number 550-110-710/0200
or