Dettson OLR154F20A Installation Instructions And Homeowner'S Manual Download

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2 INSTALLATION

The unit is shipped with a burner and its controls. It requires a
115VAC power supply to the control panel and thermostat
hook-up as shown on the wiring diagram, one or more oil line
connections, suitable ductwork and connection to a properly
sized vent.

All  local  and  national  code  requirements  governing  the
installation  of  oil  burning  equipment,  wiring  and  the  flue
connection  MUST  be  followed.  Some  of  the  codes  that  may
apply are:

CSA B139:

Installation code for oil burning equipment.

ANSI/NFPA 31:

Installation of oil burning equipment.

ANSI/NFPA 90B:

Warm air heating and air conditioning

systems.

ANSI/NFPA 211:

Chimneys, Fireplaces, Vents and solid fuel

burning appliances.

ANSI/NFPA 70:

National Electrical Code.

CSA C22.1 or
CSA C22.10

Canadian Electrical Code.

Only the latest issues of these codes may be used.

2.1

POSITIONING THE FURNACE

WARNING

Fire and explosion hazard.

The furnace must be installed in a level position, never
where it will slope toward the front.

Do not store or use gasoline or any other flammable
substances near the furnace.

Non-observance of these instructions will potentially result
in death, bodily injury and/or property damage.

CAUTION

This  furnace is not watertight and is not designed for outdoor
installation. It must be installed in such a manner as to protect
its  electrical  components  from  water.  Outdoor  installation  will
lead  to  a  hazardous  electrical  condition  and  to  premature
failure of the equipment.

The minimum clearances from combustible material for
each of the positions are specified in Table 4.

If the furnace is installed in a basement or on a dirt floor, in a
crawl space for example, it is recommended to install the unit
on a cement base 2.5 cm to 5.0 cm (1" to 2") thick.

The unit must be installed in an area where the ambient and
return air temperatures are above 15°C (60°F). In addition, the
furnace should be installed as closely as possible to the vent,
so that the connections are direct and kept to a minimum. The
heater should also be located close to the centre of the air
distribution system.

2.1.1

Installation in an enclosure

The  unit  can  be  installed  in  an  enclosure  such  as  a  closet.
However,  2  ventilation  openings  are  required  for  combustion
air.  The  openings  should  be  located  in  front  of  the  furnace
approximately 15 cm (6") above the floor and 15 cm (6") below
the  ceiling.  Figure  1  indicates  the  minimum  dimensions
required and the location of the openings.

Figure 1: Location and dimensions of ventilation air

openings in a closet door

2.2

ELECTRICAL SYSTEM

CAUTION

The  exterior  of  the  unit  must  have  an  uninterrupted
ground  to  minimize  the  risk  of  bodily  harm,  if  ever  an
electrical  problem  develops.  A  green  ground  screw  is
supplied with the control box for that purpose.

The  appliance  must  be  installed  in  accordance  with  the
current  ANSI/NFPA  70  National  Electrical  Code,  CSA
C22.1  Canadian  Electrical  Code  Part  1  and/or  local
codes.

The control system depends on the correct polarity of the
power supply. Connect “HOT” wire (H) and “NEUTRAL”
wire (N) as shown in Figures 3 and 4.

A separate line voltage supply should be used, with fused
disconnect switch or circuit breaker, between the main
power panel and the unit.

Only copper wire may be used for the 115V circuit on this
unit. If wires need to be changed, the replacements must
have the same temperature resistance as the originals.

2.3

INSTALLATION OF THE THERMOSTAT

A thermostat must be installed to control the temperature
of the area to be heated. Follow the instructions supplied
with  the  thermostat.  Also  refer  to  the  wiring  diagrams
provided  with  the  heating/air  conditioning  unit.  The
connections  must  be  made  as  indicated  on  the  following
diagrams and the wiring diagrams.

Figure 2: Heating & Air Conditioning - With 4 Speed

Motor