AERCO Esteem O&M Manual - Manual (Page 49)

43
First Run Check of the Unit and System
WARNING!
T
HE COMBUSTION TESTING AND ADJUSTMENTS
MUST BE PERFORMED BY A QUALIFIED INSTALL
-
ER
,
SERVICE AGENCY OR THE GAS SUPPLIER
.
A
LL COMBUSTION MEASUREMENTS MUST BE
PERFORMED WITH CALIBRATED EQUIPMENT TO
ENSURE PROPER READING AND ACCURACY
.
 Test for CO2 or O2 and for CO during
high fi ring rate. To manually place the
boiler into high fi re mode, refer to page 49.
The combustion reading should be within
the range listed in Table 2. The CO level
should not exceed 100 ppm when com-
bustion is correct.
WARNING!
T
HE COMBUSTION LEVELS SHOULD BE MEAS
-
URED AT HIGH FIRING RATE
,
REFER TO PAGE
49
OF THE
E
STEEM
399 L
OW
NO
X CONTROL
SECTION ON HOW TO SET THE FIRING RATE
. I
F
THE COMBUSTION LEVELS ARE NOT WITHIN THE
RANGE GIVEN IN
T
ABLE
2
FOR THE FIRING RATE
,
SHUT THE BOILER DOWN AND CONTACT
AERCO
I
NTERNATIONAL
E
NGINEERING
D
EPARTMENT
.
F
AILURE TO COMPLY WITH THIS REQUIREMENT
COULD RESULT IN SEVERE PERSONAL INJURY
,
DEATH OR PROPERTY DAMAGE
.
First Run Check of the Unit and
System
 Check Boiler Piping.
 Check Boiler system piping and compo-
nents for leaks. If found, shut down the
unit and repair immediately.
 Purge remaining air from the system
piping. Air in the system piping will inter-
fere with circulation creating heat distri-
bution problems and system noise.

Check Vent Piping and Combustion Air
Piping.
 Check for gas-tight seal at every connec-
tion and seam of the venting and combus-
tion air piping.
WARNING!
V
ENTING SYSTEM MUST BE SEALED GAS
-
TIGHT
TO PREVENT FLUE GAS SPILLAGE AND POTEN
-
TIAL CARBON MONOXIDE EMISSIONS
,
WHICH WILL
RESULT IN PERSONAL INJURY OR DEATH
.
 Check Gas Piping
 Check around the unit for gas odor fol-
lowing the procedure on page 40 of this
manual.
WARNING!
I
F ANY GAS LEAKS ARE FOUND OR SUSPECTED
,
SHUT THE UNIT DOWN IMMEDIATELY
. L
OCATE
AND REPAIR ALL LEAKS
. D
O NOT OPERATE THE
UNIT UNTIL THE LEAK IS CORRECTED
. F
AILURE
TO COMPLY WITH THIS PROCEDURE COULD RE
-
SULT IN PERSONAL INJURY
,
DEATH OR PROPER
-
TY DAMAGE
.
 Verify Flame Pattern and Combustion
 Check the fl ame pattern through the
inspection port of the heat exchanger.
The fl ame should be blue and stable. The
fl ame should be the length of the burner
head openings.
Table 2: Recommended Combustion Levels
Natural Gas Propane
O2 Min. 2.30% 3.70%
O2 Max. 5.30% 5.20%
CO2 Min. 8.80% 10.00%
CO2 Min. 10.50% 11.00%
CO Max. 100 ppm 100 ppm
GF-125