Slant/Fin V-33 Victory, Electrical Controls And Wiring, Boiler Room Air Supply And Ventilation

VICTORY 11

Length		Gas Flow In Piping -- cu. ft. per hr.
		Iron Pipe Size (Ips)—inches
of Pipe
in Feet
	1/2	3/4	1	1-1/4	1-1/2
10	132	278	520	1050	1600
20	92	190	350	730	1100
30	73	152	285	590	890
40	63	130	245	500	760
50	56	115	215	440	670
60	50	105	195	400	610
70	46	96	180	370	560
80	43	90	170	350	530
90	40	84	160	320	490
100	38	79	150	305	460

At pressure drop of 0.3 in. water, specific gravity = 0.60.

at test pressures equal to or less than 1/2 PSIG.

D. All gas piping used should be inspected thoroughly for cleanliness before makeup. A sediment trap must be pro- vided, as illustrated on page 2.

E. The minimum and maximum gas supply pressure (at the inlet of gas valve) are shown on the boiler rating plate for the type of gas used. Gas supply pressure should never be less than minimum or more than maximum pressure

when the boiler or any other appliance is turned on or off.

ELECTRICAL CONTROLS AND WIRING

A. The electrical power to the boiler must be on a separately fused and live circuit.

B. If an external electrical source is utilized, the boiler, when installed, must be electrically grounded in accordance with the requirements of the authority having jurisdiction or, in the absence of such requirements, with the National Electrical Code, ANSI/NFPA No. 70-latest edition.

C. Basic control wiring diagrams are given on page 17 and 18. Other control systems may be factory supplied: see User's Information Manual and instructions packed with control system supplied.

D. After placing the boiler in operation, the safety shutoff

device must be tested. See page 14 safety check.

BOILER ROOM AIR SUPPLY AND VENTILATION

An ample supply of air is required to obtain combustion and ventilation. ALL AIR COMES FROM OUTSIDE, directly through wall openings to the boiler or through unsealed openings around windows, doors, etc. in the whole building. When buildings are insulated, caulked and weather-stripped, now or later on, direct openings to outside may be required and should be provided. If the boiler is not near an outside wall, air may be ducted to it from outside wall openings. Provisions for combustion and ventilation air must be made in accordance with section 5.3, Air for Combustion and Venti- lation, of the National Fuel Gas Code, ANSI Z223.1-latest edition, or applicable provisions of the local building codes. The following recommendation applies to buildings of ener- gy-saving construction, fully caulked and weather stripped: Provide one GRILLED opening near the floor and one near the ceiling on an outside wall near the boiler (or duct from such openings to the boiler), EACH opening to be a mini- mum of one square inch per 2000 Btuh input to ALL APPLI- ANCES in the area. For a total appliance input of 200,000 Btuh, each opening will be 100 square inches. A grilled

Figure 10. Air Eliminating System

opening 10"X10" has 100 square inches of area. If fly screen must be used over openings, double the area and inspect and clean the screen frequently.

Openings must never be reduced or closed. If doors or win- dows are used for air supply, they must be locked open. Protect against closure of openings by snow and debris. Inspect frequently.

No mechanical draft exhaust or supply fans are to be used in or near the boiler area.

The flow of combustion and ventilating air to the boiler must WATERnot be obstructedPIPING .

I.CIRCULATING SYSTEMS

A.Packaged water boilers are equipped with a water circu- lating pump, mounted to return the water into the boiler. For some installations, the pump should be on the sup- ply main. See PUMP LOCATION, on page 12.

II.AIR CONTROL SYSTEM

A.DIAPHRAGM-TYPE COMPRESSION TANKS are used to control system pressure in an AIR ELIMINATING SYSTEM; an automatic air vent is used to REMOVE air from the system water. See illustration.

If system pressure needs further control, add an addi- tional tank or install a larger capacity tank.

Locate the tank near the boiler, as illustrated.

An automatic air vent should be installed in the top of the boiler. See illustration.