PB Heat 211A - Manual (Page 9)

7
PREINSTALLATION
f. After it has been determined that each appliance
remaining connected to the common venting
system properly vents when tested as outlined
above, return doors, windows, exhaust fans,
fireplace dampers and any other gas-burning
appliance to their previous condition of use.
g. Any improper operation of the common venting
system should be corrected so the installation
conforms with the current edition of the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or
CAN/CGA B149, Installation Codes. When
resizing any portion of the common venting
system, the common venting system should be
resized to approach the minimum size as
determined using the appropriate tables located
in the chapter Sizing of Category I Venting
Systems in the current edition of the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or
CAN/CGA B149, Installation Codes.
E. BOILER SETTING
1. Provide a good, level foundation for the boiler with
the minimum dimensions given in Figure 1.9 and
Table 1.1. The flooring and structural support system
must be suitable for the operating weight of the
boiler and any connected piping.
2. Do not operate the boiler until the foundation, if new
concrete, has thoroughly cured. The high
temperature under the burners could cause major
damage to the concrete if it still contains moisture.
3. If the boiler is installed in a penthouse or if wiring of
any sort is run underneath the boiler foundation,
construct the foundation with provision for airflow
underneath between the main floor and the top of
the boiler foundation.
a. Concrete block aligned with the openings
connected continuously would serve this
purpose, for example.
b. If the foundation must be a concrete slab, use an
air cell high temperature insulating board, at least
1/2 inch (13 mm) thick, with aluminum backing,
aluminum side up. One-half inch (13 mm) Hi
Temp millboard with aluminum backing would
be acceptable as well. Place the insulating board
on the slab inside the base.
F. WATER QUALITY AND MAKE-UP
1. Check the system to make sure there are no leaks or
overfilling problems which might cause excessive
make-up water to be added. Make-up water causes
liming in the boiler and brings in oxygen. Oxygen
can cause severe damage to the boiler through
oxygen corrosion pitting.
2. Clean the boiler as described in this manual. Poor
water quality will cause foaming, priming and
overfilling of the system. Too much sediment in the
water will cause build-up in the boiler and could
result in cracked sections due to overheating.
3. If the condensate return time lag is too long, this
boiler may not work correctly with gravity return or
with a condensate return unit. Long time lags will
cause make-up water to be added to the boiler,
resulting in flooding of the boiler, carryover to the
system and excessive make-up water addition. You
will need to install a boiler feed system to prevent
problems in such cases.
4. Do not use chemicals or substances in the
boiler or system which contain petroleum or its
derivatives. This will damage the boiler seals.
G. INSTALLATION SURVEY
For new and existing installations, a Steam Installation
Survey is available from PB Heat. The survey will
provide information on how a steam boiler works with
your specific system and will provide an overview of
steam system operation in general.
You can also use this survey to locate system problems
which will have to be corrected. To obtain copies of the
Steam Installation Survey, contact your PB Heat
representative or download from PeerlessBoilers.com.
Figure 1.9: Foundation Layout
Do not install this boiler on carpeting or any
combustible flooring. A significant fire hazard could
result, with potential for property damage, personal
injury or death.
WARNING