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Modu-Fire
®
Gas-Fired Boiler Installation
6
Adjustable Legs for Leveling and Floor Clearance
3.3.3 Clearances
If the boiler is to be installed near combustible sur-
faces, the minimum clearances shown in the table be-
low must be maintained.
Failure to provide for the service access clearances,
even with non-combustible surfaces, may cause future
problems servicing the boiler.
The boiler must be installed in a space large in com-
parison to the boiler as described in Section 6.3 of the
National Fuel Gas Code, ANSI Z223.1, latest edition.
AB
C
No pipes,
ducts, etc.
in this area.
DD
Minimum Clearances from Adjacent Walls, Ceiling, and
Obstructions
Dimensions (inches)
Type of Surface
A B C† D
Combustible Surfaces 30 24 30 24
Non-combustible Sur-
faces
30 24* 30 24**
† "C" dimension includes clearance to remove the
burner. Do not put pipes, ducts, etc. in this area above
the boiler.
* CSA minimum. Actual clearance depends upon
stacking requirements.
** Service access need be only on one side of a boiler
or row of boilers. Boilers may be installed immedi-
ately adjacent to each other. However, P-K recom-
mends this clearance between each boiler when there
is insufficient access at the rear to allow for service
and adjustment.
In Canada: The boilers are approved for installation
with zero clearance to combustible surfaces, but 24
inch service clearances are recommended.
3.4
ELECTRICAL CONNECTIONS
All field wiring connections for power and control are
in the rear service panel on the back of the boiler.
Low voltage and high voltage terminal strips are indi-
cated on the wiring diagram. The boiler power circuit
Back of
Boiler
Front of
Boiler