GOLD GV Water boiler series 3 — manual
IIf Prepare boiler — pressure test
Perform hydrostatic pressure test
Pressure test boiler before attaching water or gas piping (except as noted below) or electrical supply.
Prepare boiler for test (Fig. 7)
➀Connect a hose from water supply to fill and drain boiler for hydrostatic test. Hose is not included with boiler.
➁Connect hose to boiler drain valve. Make sure hose can also be used to drain boiler after test.
➂Remove 1" nipple, 1" tee, bushing and pressure/ temperature gauge from accessory bag. Pipe to boiler supply connection as shown. Use pipe dope sparingly.
➃Connect a nipple and shutoff valve to system supply connection on the 1" tee. This valve will be used to bleed air during the fill. Valve and nipple are not included with boiler.
➄Connect a nipple and shutoff valve to system return connection at circulator flange. This valve will be used to bleed air during the fill. Valve and nipple are not included with boiler.
➅Install a ¾" pipe plug in the relief valve opening, top of the rear boiler section, as shown. Plug is not included with boiler.
Fill and pressure test
1.Connect fill water supply through drain valve (item 2).
2.Fill boiler with water (be sure bleed valves at 4 and 5 are open).
3.When water flows from bleed valves, shut off water at drain valve.
4.Close bleed valves.
5.Slowly reopen drain valve (item 2) until test pressure of not more than 45 psi is reached on the pressure gauge.
6.Test at no more than 45 psi for no more than 10 minutes.
Do not leave boiler unattended. A cold water fill could expand and cause excessive pressure, resulting in severe personal injury, death or substantial property damage.
7.Make sure constant gauge pressure has been maintained throughout test. Check for leaks. Repair if found.
Leaks must be repaired at once. Failure to do so can damage boiler, resulting in substantial property damage.
Do not use
Drain and remove fittings
1.Disconnect fill water hose from water source.
2.Drain boiler at drain valve or out hose, whichever provides best access to drain. Close drain valve and remove hose after draining.
3.Remove nipples and valves at 4 and 5 unless they will remain for use in the system piping.
4.Remove plug (item 6) from relief valve tapping.
24 | Part number |