Adams Condensing Oil-Fired Furnace Furnace User Manual


 
VII. ELECTRICAL CONNECTIONS
I WARNING
HIGH
VOL
TAGEI
To avoid the risk
of
electrical shock,
wiring
to
the
unit
must
be polarized
and grounded.
! WARNING
HIGH VOLTAGEI
To avoid personal Injury
or
death due
to
electrical shock, disconneCt
electrical power before servicing
or
changing any electrical wiring.
I CAUTION
Label all wires
prior
to
disconnection when servicing
controls. Wiring errors can
cause
improper
and dangerous
operation. Verify
proper
operation after servicing.
Wiring Harness
The wiring harness is an integral part
of
this
furnace. Field alteration to comply with
electrical codes should not be required.
Wires are color-coded for identification
purposes. Refer to the wiring diagram for
wire routings.
If
any
of
the original wire as
supplied with the furnace must be replaced,
it must be replaced with wiring material
having a temperature rating
of
at least 105
degrees
C.
Any replacement wiring must be
copper conductor.
115 Volt Line Connections
Before proceeding with electrical
connections, ensure that the supply voltage,
frequency, and phase correspond to that
specified on the unit rating plate. Power
supply
to
the furnace must be N.E.C. Class
1,
and must comply with all applicable
codes. and/or The Canadian Electric Code
CSAC22.1.
Use a separate fused branch electrical
circuit containing properly sized wire,
minimum 12 gauge, and fuse or circuit
breaker.
The furnace must be electrically grounded
in accordance with local codes or, in their
absence, with the latest edition of:
The National Electric Code, ANSI NFPA 70.
The fuse
or
circuit breaker must be sized in
accordance with the maximum over-current
protection specified on the unit rating plate.
An electrical disconnect must be provided
at
the furnace location.
NOTE: Line polarity must be observed
when making field connections.
I WARNING
THE DRAIN
TRAP
MUST
VBE
MOUNTED ON THE OPPOSITE SIDE
OF THE UNIT FROM THE JUNCTION
BOX. THIS
WILL
REDUCE
THE
RISK
OF
WATER REACHING THE JUNCTION
BOX
IN
THE
EVENT OF A
BLOCKED
DRAIN CONDITION.
Connect hot, neutral, and ground wires as
shown in the wiring diagram located on the
unit's blower door. Line polarity must be
observed when making field connections.
Line voltage connections can be made
through either the right or left side panel.
The furnace is shipped configured for a right
side electrical connection with the junction
box located inside the blower compartment.
To make electrical connections through the
opposite side
of
the furnace, the junction
box must be relocated to the other side
of
the blower compartment prior to making
electrical connections.
NOTE:
Wire
routing must not interfere with
circulator blower operation, filter removal,
or
routine maintenance.
I WARNING
EDGES OF SHEET
METAL
HOLES
MAY
BE
SHARP. USE GLOVES
AS
A
PRECAUTION WHEN REMOVING HOLE
PLUGS.
12