Utica Gas-fired Boiler User Manual download pdf (Page 11)

1. Connectgas servicefrom meterto control as-

semblyin accordancewithANSIZ223.1 andlocal

codesor utility.A groundjoint unionshouldbe in-

stalledforeasyremovalofgascontrolforservicing.

A dripleg or trapmustbe installedat thebottomof

a verticalsectionof pipingat the inletto the boiler.

A pipecompoundresistantto the actionof liquified

petroleumgasesmustbeusedonallthreadedpipe

connections.Checkwiththe localutilityfor location

of manualshutoffvalveif required.(Figure 13)

INS IALL MANUAL VALVE %,/2/ HIM

6 #_. (183cm) EJ]F FH_ BOILER Z_ND

b £t (]5_crn) AB_VE T,_ FL NrqR

_/'FIE_E REOUIRED BY LEI]CAL CE]DE3

.3" (8 c_,)

_--- DRIP LEG

GAS CDNTRD ZNi ET

[Fl U .Sq

MINUMUM

2. The gas line should be of adequate size to prevent

undue pressure drop and neversmalter than the pipe

size of the main gas control valve. (See Chart)

MAXIMUM CAPACITY OF PiPE IN CUBIC FEET OF GAS/HOUR

(Gas Pressure = 0.5 psig or less, Pressure Drop = 5 in. w/c)

I0 175 360 680 1400

20 120 250 465 950

30 97 200 375 770

40 82 170 320 660

60 66 138 260 530

80 57 118 220 460

100 50 I03 195 400

Foradditionalinformation referto"Table C"ofthe National Fuel Gas

Code Handbook.

3. To check for leaks in gas piping, use a soap and

water solution or other approved method.

4. Disconnect boiler from gas supply piping system

during any pressure testing of the gas piping. After

reconnecting, leak test gas connection and boiler

piping before placing boiler back into operation.

SEE WIRING DIAGRAMS ON THE FOLLOWING_

WO PAGES FOR DETAILS. j/

Electrical wiring must conform with the National

Electrical Code, ANSI/NFPA No. 70-1990 when

installed in the United states, the CSAC22.1 Canadian

Electrical Code, Part 1, when installed in Canada

and/or the local authority having jurisdiction.

IMPORTANT: Install a fused disconnect switchh

Lbetween boiler and meter at a convenient location S

1. Thermostat should be installed on an inside wall

about four feet above the floor.

2. NEVER install a thermostat on an outside wall.

3. Do not install a thermostat where it witl be affected

by drafts, hot or cold pipes, sunlight, lighting fixtures,

televisions, a fireplace, or a chimney.

4. Check thermostat operation by raising and lowering

thermostat setting as required to start and stop the

burners.

5. Instructions for the final adjustment of the thermostat

are packaged with the thermostat (adjusting heating

anticipator, calibration, etc.)

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Utica Gas-fired Boiler User Manual Page 11

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