GOLD GV Water boiler series 3 — manual
VIIa Start-up — overview
❏Determine if water treatment will be needed to compensate for water hardness or pH.
❏Obtain propylene/glycol antifreeze if freeze protection is required. Glycol must be propylene glycol only, and special requirements may apply when using glycol.
❏Check for gas leaks (and verify propane odorant level).
❏Fill system with water and purge air. Verify water piping is
❏Study boiler operating instructions, Section IX. Then start boiler.
❏Verify water piping, gas piping and vent system are
❏For installations at altitudes over 5,500 feet above sea level, measure gas valve outlet pressure and adjust if required (see also Section IId).
VIIb Start-up — preparation
Do not use
in boiler system. Severe damage to boiler will occur, resulting in substantial property damage.
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.
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).
Freeze protection (when used)
Use antifreeze made especially for hydronic systems. Inhibited propylene glycol is recommended.
Do not use ethylene glycol, automotive or undiluted
antifreeze. Severe personal injury or death can result.
1.Determine antifreeze quantity according to system water content. Boiler water content is listed in Table 12 on page 95. 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
4.Local codes may require back flow preventer or actual disconnect from city water supply.
5.When using antifreeze in a system with automatic fill, install a water meter to monitor water makeup. Glycol will leak first at any leak spot. Added water will dilute the antifreeze, reducing the freeze protection level.
42 | Part number |
