![background image](http://html1.mh-extra.com/html/winnebago/suncruiser-1999/suncruiser-1999_owners-manual_987513096.webp)
SECTION 8
APPLIANCES & INTERIOR FEATURES
8-12
WATER HEATER BY-PASS VALVE
Your coach may be equipped with a water
heater by-pass valve for easier winterization of
water lines using RV antifreeze. The valve is lo-
cated inside the coach near the water heater. See
pg. 7-6 for the exact location in your coach.
Line up the arrow on the handle with the ap-
propriate arrow on the valve plate to either by-
pass or flow through the water heater.
MOTOR AID
The motor aid uses heat from the chassis en-
gine cooling system to heat water in the water
heater while driving. Hoses are routed from the
engine to a heat exchanger surrounding the water
heater tank.
Under normal conditions, the entire contents
of the water heater can be heated to a usable tem-
perature in a few hours of highway driving. This
means you can have hot water at the faucets im-
mediately upon arriving at a site, or even while
driving if needed.
The motor aid also increases the capacity of
the engine cooling system, allowing the engine to
run cooler under many conditions.
Motor Aid Water Heater and Rear Auxiliary
Heater Maintenance
Have your authorized dealer check all hose
clamp connections on the rear automotive heater
and the motor aid water heater at least every six
months and tighten them if necessary.
LP GAS FURNACE
(SUBURBAN)
To Start Up:
1. Close the LP gas tank valve.
2. Slide thermostat switch from OFF to HEAT.
3. Set thermostat above room temperature to
begin blower operation. A slight delay will
occur before the blower comes on. Allow
blower to run for 5 minutes for combustion
chamber purge cycle.
4. After 5 minutes, move thermostat lever
below room temperature. Blower will remain
on. Wait approximately 2 minutes for blower
to go off.
5. Open LP gas tank valve.
6. Set thermostat to desired temperature. If set
above room temperature, blower will come
on.
CAUTION
Leave by-pass valve handle in NOR-
MAL FLOW position if draining
water and blowing out water lines.
Place in BYPASS position ONLY
when using antifreeze solution in
water lines.
Normal
Flow
By-Pass
Mode
CAUTION
Any leak in the heat exchanger or its
supply or return lines could cause loss
of coolant and subsequent engine fail-
ure. We recommend that you periodi-
cally inspect these connecting lines
and the heater to insure that no leaks
have developed.
Temperature Selector
Fan Speed Switch
System Switch
Summary of Contents for Suncruiser 1999
Page 6: ......
Page 12: ......
Page 42: ......
Page 48: ......
Page 56: ......
Page 62: ......
Page 74: ......
Page 83: ...7 9 SECTION 7 PLUMBING SYSTEMS Water Tank Drain Plug Freightliner Chassis Only ...
Page 84: ......
Page 98: ...SECTION 8 APPLIANCES INTERIOR FEATURES 8 14 ...
Page 122: ...MAINTENANCE RECORD Date Odometer Mileage Description of Service Cost ...