AERCO BMK 3.0 LN Natural Gas July 2011 - Manual (Page 10)

SAFETY PRECAUTIONS
1-2
CAUTION
Many soaps used for gas pipe leak
testing are corrosive to metals. The
piping must be rinsed thoroughly with
clean water after leak checks have
been completed.
CAUTION!
DO NOT use this boiler if any part has
been under water. Call a qualified
service technician to inspect and
replace any part that has been under
water.
1.2 EMERGENCY SHUTDOWN
If overheating occurs or the gas supply fails to
shut off, close the manual gas shutoff valve
(Figure 1-1) located external to the unit.
IMPORTANT
The Installer must identify and
indicate the location of the emergency
shutdown manual gas valve to
operating personnel.
1.3 PROLONGED SHUTDOWN
After prolonged shutdown, it is recommended
that the startup procedures in Chapter 4 and the
safety device test procedures in Chapter 6 of
this manual be performed, to verify all system-
operating parameters. If there is an emergency,
turn off the electrical power supply to the
AERCO boiler and close the manual gas valve
located upstream the unit. The installer must
identify the emergency shut-off device.
MANUAL GAS SHUTOFF VALVE
VALVE OPEN VALVE CLOSED
Figure 1-1. Manual Gas Shutoff Valve
IMPORTANT – FOR MASSACHUSETTS INSTALLATIONS ONLY
Boiler Installations within the Commonwealth of Massachusetts must conform to the following
requirements:
x Boiler must be installed by a plumber or a gas fitter who is licensed within the Commonwealth of
Massachusetts.
x Prior to unit operation, the complete gas train and all connections must be leak tested using a
non-corrosive soap.
x If a glycol solution is used as anti-freeze protection, a backflow preventer must be installed
upstream of the Fill/Makeup Valve.
x The vent termination must be located a minimum of 4 feet above grade level.
x If side-wall venting is used, the installation must conform to the following requirements extracted
from 248 CMR 5.08 (2):
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or
structure used in whole or in part for residential purposes, including those owned or operated by the
Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, including but not limited to decks and porches, the following
requirements shall be satisfied: