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Truck Campers • nucamprv.com
• Generally, RV air conditioners are only designed to cool the inside air approximately 20° F lower
than the outside air. This is not a defect. In temperatures of 100° F or higher, such as in the
southwest United States, this should be taken into consideration.
• Keep windows and other vents closed when operating the air conditioner.
• Hot air rises and cool air drops. The air conditioner air intake is by the ceiling where all the
hottest air gathers. The air conditioner gathers the rising warm air, cools it (creating
condensation and discharging water on the roof) and then ejects the air by the ceiling where it
circulates downward.
• Never close or obstruct the air intake. This will cause the air conditioner to malfunction and slow
down cooling.
• Never allow the air conditioner to run without a return air filter. Without the filter, lint and debris
will gather on the cooling coil. Damage and loss of air volume can result. This can ruin the air
conditioner or at the least, be an expensive repair.
• The air conditioner normally causes water to gather on the roof. To remedy this, lift the front of
the camper to allow water runoff to the rear.
When camping in hot weather, especially during the day, the camper will absorb heat from the sun and
the surrounding atmosphere. This is known as heat gain. If you can reduce this, especially in extreme
hot weather, you have won half the cooling battle.
To reduce heat gain and increase air conditioner cooling in high temperature weather:
• Seek shaded areas to park your camper, such as beneath trees.
• Close all windows, shades and curtains. For an extra heat shield, insert an automotive windshield
sun shade, cut to size, into each of the windows. Some shades may have a reflective coating on
the exterior side already.
• Keep heat emitting appliances such as the Alde
®
System, stovetop and microwave turned off.
• Extend any equipped awnings. This will shade the sides of the camper from sun exposure.
• Start the air conditioner early in the morning to give it a head start on the day.
• Turn the air conditioner on its highest setting.
Refer to the air conditioner(s) operator manual for detailed operating instructions. These are included in
your Owner’s Packet. Online information on your specific Air Conditioner may also be found at this link:
https://www.airxcel.com/rv/coleman-mach/products/air-conditioners/ultra-low-profile/mach-8/mach-8-
ac
FAN VENTILATION
The fan vent(s) installed in the roof creates fresh air circulation and removes stale air from the camper. It
is powered by 12V or shore power and may be equipped with either manual or remote controls.
• Always ventilate the camper while sleeping.
• The fan will not ventilate well if an air inflow source such as a window is not opened. For best
ventilating results, open a window the farthest distance from the fan so air can flow through the
entire camper.
• See operating instructions of the fan vent included in the Owner’s Packet.
PLUMBING & WINTERIZATION
WATER SYSTEM INFORMATION & SAFETY
Your camper is equipped with a two-part plumbing system – fresh water
and waste water.
The freshwater system includes:
• Fill Level Monitor Screen
• Freshwater Holding Tank
• Water Pump & Filter
• Alde
®
Boiler (heats the water)
• Alde
®
Flow
• Sink Faucets
• Shower Head
• Exterior Wash Station
• Water Fill Inlet
• Piping & Connections
The waste water system includes:
• Fill Level Monitor Screen
• Gray (waste) Water Holding Tank
• Black (sewage) Water Holding Tank
• Drains
• Toilet
• Piping & Connection
Safety Information:
• Before using the fresh water system for the first time and when
de-winterizing, the water system must be sanitized. During cold
months the camper may have been winterized at the factory or
dealer lot. Following the de-winterization process will sanitize the
water system. See pages 29 for instructions.
• The water system is safe enough to drink from only if it is properly
sanitized. Many camping enthusiasts find it safer and easier
to supply their own bottled drinking water. Your best option may
be supplying your own safe drinking water rather than rely on the
water system in the camper to be pure and sanitary.
• Due to the smaller plumbing system in most recreational vehicles,
the pump can only supply a limited amount of pressure at a
given time. Use only one water outlet at a time. While showering
especially, do not open other faucets. Scalding and serious burns
may occur.
• Always drain holding tanks when they are not in use. This will
eliminate contaminants from stale water and prevent freezing
in winter.
• Traveling with full tanks will reduce the amount of available cargo
capacity in the camper and may overload your truck. Never exceed
the payload capacity of your truck.
Do not drink unsanitary water. If water
quality is unknown, do not drink.
Serious injury or in extreme cases death,
can occur.
WARNING
Use potable water only in the fresh water
system. Sanitize, flush, and drain water
tank before using. Failure to maintain
tank can result in death or serious injury.
WARNING
