Cleaver-Brooks CBH 40 - Chapter 4 - Starting and Operating Instructions; General Preparation - Initial Start-Up; Control Settings - All Fuels; Oil Burner Start-Up

CHAPTER 4
S AR I G
PERATI
G I
ST UCTIO
s
A. GENERAL PREPARATIONS FOR INITIAL
START-UP
(All FUELS)
13. CONTROL SETTINGS (ALL FUELS)
C.
OIL BURNER START-UP
(100 and 200 SERIES)
!J. GAS BURNER START-UP
{200 and 700 SERIES)
E.
NORMAL OPERATION {All FUELS)
A. GENERAl PREPARATION FOR
INITIAl START -UP
(All FUElS)
The instructions in this chapter assume that com-
plete installation has been made and that all elec-
trical, fuel, water and vent stack connections are
completed.
The operator should have familiarized himself
with the burner, boiler and all components. To
quickly locate and identify the various controls
mentioned in the following paragraphs refer to
call-out photographs and the contents of Chapter
1.
Chapter 5 contains adjustment procedures and this
should be reviewed prior to actual firing. The
wiring diagram should also have been studied.
Verify supply of fuel and proper voltage. Check for
blown fuses or fusetrons, open circuit breakers,
dropped-out overloads etc. Check reset of all star-
ters and controls having manual reset features.
Check the lockout switch on the programmer and
reset if necessary. The timer dial setting should be
at the black dot.
The boiler should be fined with water to the
proper operating level using water of ambient tem-
perature. Make sure that treated feedwater is
available and used. In a heating application the
entire system should be filled and vented. Refer to
Chapter 2 for water requirements.
On a steam boiler, open the test valve on the water
column to vent air displaced during filling. Leave
test valve open until escape of steam is noted after
burner is operating.
CAUTION: Prior to firing make certain the dis-
charge piping from safety or relief
valves and discharge piping from all
blowdown or drain valves is piped to
a safe point of discharge so that
emission of hot water or steam cannot
possibly cause injury to personnel or
damage to property.
Inspect all linkage for full and free movement of
the damper and also of the butterfly gas valve on
gas fired burners.
Check for proper rotation of blower motor by
momentarily closing the motor starter. Rotation is
counterclockwise when viewed from front of boiler.
Before
operating boiler feed pump, if used, be sure
all valves in the line are opened or properly
positioned.
For safety's sake make a final pre-start-up in-
spection especially checking for any loose or in-
completed piping or wiring or any other situation
that might present a hazard.
B. CONTROl SETTINGS (All FUElS)
Inspect the operating limit control for proper set-
ting. The pressure control on a steam boiler should
be set slightly above highest desired steam
pressure, but 10% lower than the setting of the
safety valve(s). The temperature control on a hot
water boiler should be set slightly above the
highest desired water temperature and within the
limits of the pressure vessel.
Inspect the high limit control for proper setting. On
a high pressure steam boiler this should be set ap-
proximately 10 lbs. above the operating limit
pressure control setting, if feasible, or midway be-
tweeD
operating limit pressure and safety valve
setting. The setting on a low pressure steam boiler
may be 2 or 3 lbs. above the operating limit setting
but must not exceed valve setting. On a hot water
boiler the temperature control should be 5 to 10°
4-1