Burnham 8H manual VIII. System Start-Up

VIII. System Start-Up

		WARNING	9.		Close purge valve, continue filling the system
					until the pressure gauge reads the desired cold fill
Completely read, understand and follow all					pressure. Close fill valve.
instructions in this manual before attempting					(Note - If make-up water line is equipped with
start-up.					pressure reducing valve, adjust pressure reducing
A. Safe operation and other performance criteria were met					valve to desired cold fill pressure. Follow fill valve
					manufacturer’s instructions).
	with the gas manifold and control assembly provided
			10.		Open isolation valve in boiler supply piping.
	on boiler when boiler underwent tests specified in
	American National Standard for Gas-Fired Low-		11.		Remove hose from purge valve.
	Pressure Steam and Hot Water Boilers, ANSI Z21.13.			F. Confirm that the boiler and system have no water
B.
	Check Main Burners. Main burners must be properly			leaks.
	located on support bracket in Base Rear Panel, seated			G. Prepare to check operation.
	on Main Burner Orifices, and secured with hitch pin
			1.		Obtain gas heating value (in Btu per cubic foot)
	clips.
C. Verify that the venting, water piping, gas piping					from gas supplier.
			2.		Connect manometer to pressure tap on gas valve.
	and electrical system are installed properly. Refer to
					Use 1/8 NPT tapping provided.
	installation instructions contained in this manual.
			3.		Temporarily turn off all other gas-fired appliances.
D. Confirm all electrical, water and gas supplies
			4.		Turn on gas supply to the boiler gas piping.
	are turned off at the source and that vent is clear of
	obstructions.		5.		Confirm that the supply pressure to the gas valve is
E. FILL ENTIRE HEATING SYSTEM WITH WATER					14 in. w.c. or less.
			6.		Open the field installed manual gas shut-off valve
	and vent air from system. Use following procedure on
	a Series Loop or multi-zoned system installed as per				located upstream of the gas valve on the boiler.
	Figure 23 to remove air from system when filling.		7.		Using soap solution, or similar non-combustible
					solution, electronic leak detector or other approved
		WARNING
					method. Check that boiler gas piping, valves, and
					all other components are leak free. Eliminate any
The maximum operating pressure of this boiler is
					leaks.
50 psig. Never exceed this pressure. Do not plug
			8.		Purge gas line of air.
or modify pressure relief valve.
	1. Close full port ball valve in boiler supply piping.			H. Follow Lighting or Operating Instructions to place
				boiler in operation. Refer to label on inside of Front
	2. Isolate all zones by closing zone valves or shut-off
				Removable Panel or appropriate Figure as listed in
		valves in supply and return of each zone(s).		Table 11.
	3. Attach a hose to the vertical purge valve located
						DANGER
		prior to the full port ball valve in the system supply
		piping. (Note - Terminate hose in five gallon bucket
				Do not use matches, candles, open flames or
		at a suitable floor drain or outdoor area).
				other ignition source to check for leaks.
	4. Starting with one circuit at a time, open zone valve
		or shut-off valve in system supply and return piping.		Table 11: Lighting and Operating Instructions
	5.	Open purge valve.
	6.	Open fill valve (Make-up water line should be				Lighting or	Pilot Flame
				Ignition System		Operating
		located directly after full port ball valve in system					Illustration
						Instructions
		supply piping between air scoop and expansion
				Standing Pilot (24)		Figure 43	Figure 48
		tank).
	7. Allow water to overflow from bucket until discharge			Honeywell EI		Figure 44	Figure 49
					OP	Figure 45	Figure 50
		from hose is bubble free for 30 seconds.
	8. Close the open zone valve or shut-off valve for the				EP	Figure 46	Figure 51
				OP-CSD-1			Figure 50
		zone being purged of air, then open the zone valve				Figure 47
				EP-CSD-1			Figure 51
		or shut-off valve for the next zone to be purged.
		Repeat this step until all zones have been purged. At

52completion, open all zone valves or shut-off valves.