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Finned copper tube gas boilers & water heaters – Boiler Manual
41
F
F
COMBUSTION ANALYSIS
MINIMUM FIRING RATE
100% FIRING RATE
GAS PRESSURE AT ELBOW TEST PORT
INCHES W.C.
INCHES W.C.
CO
2
%
%
O
2
%
%
CO (PPM)
PPM
PPM
NET STACK TEMPERATURE
o
F
o
F
PRESSURE SIGNAL (Ps)
INCHES W.C.
INCHES W.C.
SAFETY TEST CHECKLIST
❑
FLOW SWITCHES
❑
AIR SWITCH
❑
FLAME SAFEGUARD
❑
LOW WATER CUT-OFF
❑
HIGH LIMITS
Verify that the piping and controls ensure the boiler return water temperature does NOT drop below 140
o
F, 60
o
C. Operating
at lower return temperatures is likely to cause condensation in the primary heat exchanger, resulting in corrosion and possible
failure of the heat exchanger.
COMMISSIONING THE BOILER/WATER HEATER
❑
UNIT CYCLED MINIMUM OF 15 TIMES
THE DELTA T BETWEEN THE HEATER IN-
LET AND OUTLET IS CRITICAL TO PROP-
ER FLOW. BEFORE YOU LEAVE THE JOB-
SITE, YOU MUST RECORD THE DELTA T.
THIS READING SHOULD NOT EXCEED
35
o
F, 19.4
o
C, NOR BE LOWER THAN 20
o
F,
11.1
o
C.
DELTA T =
❑
CUSTOMER INSTRUCTED
❑
ALL COVERS REPLACED
❑
CUSTOMER GIVEN MANUAL
❑
TARGET TEMPERATURE SET PER CUSTOMER
COMMISSIONED BY: ______________________________________
(
SIGNATURE)
DATE: ____________________________
ADDITIONAL NOTES AND COMMENTS
