Harman Stove Company PB 105 - Manual (Page 15)

15 3-90-07205R19_05/13
Main Wiring Installation
To install power to the boiler
, first remove the cover on the 4” X 4” junction box located on the back of the unit.
There are several knockout
holes provided for the incoming main power wires.
Also, a knockout hole can be used for the auxiliary output overheat zone (if used).
The minimum recommended circuit is 6
AMP
- 120
VAC - 60 HZ.
This boiler should be the only appliance on the circuit.
This boiler
should never
be power
ed by the use of an extension cord.
The recommended high and low voltages are, 130
V.A.C. 60 Hz maximum high voltage, and 1
13
V.A.C. 60 Hz minimum low voltage.The furnace will
continue to operate at voltages as low as 105
V.A.C. , although it can not be guaranteed that automatic ignition will occur
.
NOTE:
If
other
sour
ces
of
electrical
power
ar
e
to
be
used
( such
as
a
generator
)
for
normal
operation
or
emergency
operation,
this
sour
ce
should
be
checked
befor
e
installation.
Many
generators
and
inverters
may
not
supply
120V
.A.C.
60Hz.
power
stable
enough
to
operate
the
contr
ol
board
pr
operly
. (Contr
ol board damage could occur).