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MACH® Series
Gas-Fired Boiler Installation
Page 6
clearance and prevent distortion of the cabinet,
(twisting, etc.) in addition to leveling.
Adjustable Legs for Leveling and Floor Clearance
3.3.3 Clearances
If the boiler is to be installed near combustible
surfaces, the minimum clearances shown in the table
below 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
comparison to the boiler as described in Section 6.3 of
the National Fuel Gas Code, ANSI Z223.1, latest
edition.
Minimum Clearances from Adjacent Walls, Ceiling, and
Obstructions
Dimensions (inches) Type of Surface
A B C† D
Combustible Surfaces 36 24 24 24
Non-combustible Surfaces 36 * 24 24**
† "C" Do not put pipes, ducts, etc. in this area above
the boiler.
CAUTION!
Bumping hazard from overhead ducts! Install all
components with adequate vertical clearances.
* Clearance depends upon vent configuration.
** Service access need be only on one side of a
boiler or row of boilers. Boilers may be installed
immediately adjacent to each other. However, P-K
recommends this clearance between each boiler
when there is insufficient access at the rear to allow
for service and adjustment.
3.4
ELECTRICAL CONNECTIONS
The boiler is wired for 120 volts, single phase, 60
hertz. The total operating amperage is indicated on
the rating nameplate. All MACH units require less
than 8 amps. Before starting the boiler, check to
ensure that the proper electrical service is connected
to the boiler.
No pipes,
ducts, etc. in
this area.
A B
C
D
D
Adjustable
Leg Bolts