Burnham V7 SERIES manual Section IV Operating and Service Instructions

SECTION IV: OPERATING AND SERVICE INSTRUCTIONS

WARNING

All boilers equipped with burner swing door have a potential hazard which can cause severe property damage, personal injury or loss of life if ignored. Before opening swing door, turn off service switch to boiler to prevent accidental firing of burner outside the combustion chamber. Be sure to tighten swing door fastener completely when service is completed.

A.ALWAYS INSPECT INSTALLATION BEFORE STARTING BURNER.

B. FILL HEATING SYSTEM WITH WATER.

NOTE: It is important, especially in a steam system, to properly remove the oil and dirt from the system. Failure to clean the system can result in erratic water lines and surging.

CLEAN HEATING SYSTEM IF boiler water or condensate return water is dirty or if erratic water lines or surging exist after a few days of boiler operation.

Refer to step "N" for proper cleaning instructions for steam and water boilers.

1.STEAM BOILERS — Fill boiler to normal water line. Refer to Figure No. 1C.

2.HOT WATER BOILERS. Fill entire heating system with water and vent air from system. Use the following procedure on a series loop or multi-zoned system installed as per Figure 9, to remove air from system when filling:

a.Close isolation valve in boiler supply piping.

b.Isolate all circuits by closing zone valves or balancing valves.

c.Attach a hose to bib cock located just below isolation valve in boiler supply piping.

(Note - Terminate hose in five gallon bucket at a suitable floor drain or outdoor area).

d.Starting with one circuit, open zone valve.

e.Open bib cock.

f.Open fill valve (make-up water line should be located directly above isolation valve in boiler supply piping).

g.Allow water to overflow from bucket until discharge from hose is bubble free for 30 seconds.

h.Open zone valve to the second zone to be purged, then close the first. Repeat this step until all zones have been purged, but always have one zone open. At completion, open all zone valves.

i.Close bib cock, continue filling the system until the pressure gauge reads 12 psi. Close fill valve.

(Note - If make-up water line is equipped with pressure reducing valve, system will automatically fill to 12 psi. Leave globe valve open).

j.Open isolation valve in boiler supply piping.

k.Remove hose from bib cock.

C.CHECK CONTROLS, WIRING AND BURNER to be sure that all connections are tight and burner is rigid, that all electrical connections have been completed and fuses installed, and that oil tank is filled and oil lines have been tested.

D.LUBRICATION — Follow instruction on burner and circulator label to lubricate, if oil lubricated. Most motors currently used on residential type burners employ permanently lubricated bearings and thus do not require any field lubrication. Water lubricated circulators do not need field lubrication.

Do not over-lubricate. This can cause as much trouble as no lubrication at all.

E.SET CONTROLS with burner service switch turned “OFF”.

1.SET ROOM THERMOSTAT about 10° above room temperature.

2.PRESS RED RESET BUTTON on primary control (R4184D/R8184G) and release.

3.On STEAM BOILERS, set cut-in pressure on PA404 pressuretrol for three (3) pounds and differential pressure for two (2) pounds. These pressures may be varied to suit individual requirements of installation.

4.On STEAM BOILERS WITH TANKLESS DOMESTIC WATER HEATERS, set boiler water temperature dial on L4006 operating control at 190°F (max.). Set differential at 10°.

5.On WATER BOILERS WITHOUT TANKLESS HEATERS, set high limit dial on L8148 at 210°F. This temperature may be varied to suit requirements of installation.

6.On WATER BOILERS WITH TANKLESS HEATERS, set operating control dial (low limit) on L8124 at 190°F and high limit dial at 210°F. Operating control (low limit) must be a minimum of 20° below high limit setting. Set differential at 25°.

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