Monaco 2008 Knight, Owner'S Manual

Page: 92 / 246

applIances —
88
2 0 0 8 K n I G h t
Operation
The furnace operates in the following
manner.
The wall thermostat sends a signal
to the front roof air conditioner circuit board,
which closes a relay. Closing a relay sends
an electrical signal to the furnace to begin the
ignition cycle. There is a small time delay before
the blower motor begins. Once the blower
motor attains a predetermined speed it will
close the sail switch. The sail switch, which is
now closed, sends the electrical signal through
a high temperature protection switch, then to
the automatic ignition circuit board. After the
thermostat is satisfied, the gas valve closes and
extinguishes the burner. The blower motor stops
approximately two or three minutes after cool
down.
Furnace Requirements for Operation:
1. LP-Gas primary valve on the LP-Gas
tank is open and the LP-Gas valve at
furnace is on.
2. House batteries in the motorhome are
fully charged.
3. Battery cut-out switch is on.
NOTE
The automatic ignition circuit board
will attempt to light the burner three
times before the ignition board will
go into “lock-out.” If the burner does
not light, the furnace blower motor
will continue to run and the wall
thermostat will have to be cycled off.
Using the Furnace
Slide the ON/OFF switch to
the ON position.
Press the
ZONE button
to select Zone 1 (some
floorplans include furnaces
in Zone 1 and 2).
Select the Furnace mode
on the Comfort Control
using the
MODE
button.
Select the desired temperature using the
UP and DOWN
arrow buttons.
Tips:
After storage the furnace may produce
a musty smell during the first couple of
cycles.
Operating the furnace at an altitude
above 5,000 feet reduces the BTU output
due to air/fuel ratio.
The furnace will periodically need
serviced by a qualified technician. If
the furnace exhibits unusual symptoms
or noises, or has an unusual odor when
operating, have the furnace checked or
serviced.
NOTE
When washing the exterior of the
motorhome, avoid a direct stream of
water into the outside furnace vents.
This can cause damage to the furnace.
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If the Furnace Fails to Light
If the furnace fails to light make sure the
LP-Gas primary supply valve is open. The
furnace will not light if the blower motor is not
spinning to its specified speed. This may be due
to a low house battery charge condition.
To Charge the House Batteries:
Hook-up to shore power.
Start the generator.
Start the main engine to charge the
batteries.
If the blower fails to operate after verifying
the batteries are charged and the fuses are good,
use a screwdriver to open the outside access
door. Push the reset switch to off then to reset.
WARNING
If you smell gas and the blower motor
is spinning, do not attempt additional
furnace operation as this may result in
an explosion, fire or personal injury.
Contact a qualified technician.
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050200m
030943f