Thetford 1200 Series AC - Manual (Page 4)

Installation Manual 4
- Make sure there is less than 1/4 inch clearance
[15] between the baffle and the top of the refrigera-
tor.
- Make sure the baffle is the full width of the inside of
the enclosure.
- If the design of the vehicle does not allow you to install the
roof exhaust vent directly above the refrigerator cooling
system:
- Align the roof exhaust vent [12] above the lower intake
vent and move it inboard as necessary (See Art01597
and Art01595).
- Install two baffles [13] to prevent stagnant hot air in the
area [14] above the refrigerator.
- Make sure the baffles are the full width of the inside of
the enclosure.
- Make sure that the baffles are no more than 45°
from vertical [20].
- Put one baffle between the top rear edge of the
refrigerator and the inside edge of the roof exhaust
vent opening.
- Put the other baffle between the outside edge of the roof
exhaust vent opening and the side wall of the vehicle.
- If the depth of the enclosure is 24 inches or more and is
less than 25 inches, no baffles are necessary at the rear of
the enclosure.
- If the depth of the enclosure is 25 inches or more and is
less than 26 inches, add two baffles [16] to the rear of the
enclosure (See Art01595 and Art01596).
- Put one baffle 18 inches to 18 1/2 inches above the
bottom of the enclosure [17] (4 1/4 inches to 4 3/4
inches above the top of the lower intake vent opening
REF) [18] .
- Put the other baffle at the lowest edge of the condenser
[11] of the refrigerator.
- Make sure that the baffles are 1 inch or less [19]
from the coils [10] and condenser of the refrigera-
tor.
- Make sure that the baffles are the full width of the
inside of the enclosure.
- If the depth of the enclosure is more than 26 inches, install
a wood or an aluminum or galvanized sheet solid box baffle
[21] in the rear of the enclosure (See Art01644 and
Art01645).
- Make sure that the bottom of the solid box baffle is 18
inches to 18 1/2 inches above the bottom of the
enclosure [17] (4 1/4 inches to 4 3/4 inches above the
top of the lower intake vent opening REF) [18] .
Install the Lower and Upper Vents
1. Using the following chart, decide which vents and rough
opening (RO) sizes to use:
Certified Vent P/N RO Height RO Width
Upper Roof 622293 N/A N/A
Exhaust Cap
Upper Roof 616319 24 in. 5 1/4 in.
Exhaust Vent
Lower Square 616010 9 3/4 in. 19 3/8 in.
Corner Intake
Upper Exhaust 621156 13 3/4 in. 21 1/2 in.
& Lower Intake
Plastic
2. Install the lower intake vent:
NOTE: The lower intake vent is also the service access
opening for the components on the rear of the refrig-
erator.
WARNING: Make sure the bottom of the opening of the
lower intake vent is even with or immediately below the
floor level.
- Make sure the bottom of the opening of the lower intake
vent [9] is even with or immediately below the floor level
(See Art01597).
- Make sure that the opening for the lower intake vent is
between 1/2 inch and 1 inch from the heat source side of
the refrigerator enclosure.
3. Install the upper exhaust vent:
CAUTION: Make sure that no sawdust, insulation, or
other construction debris is on the refrigerator or in the
enclosure. Debris can cause a combustion hazard and
prevent the refrigerator from operating correctly.
NOTE: Tighten the screws of the upper roof exhaust cap to 10
inch-pounds max. Also make sure that the air flow
around the upper roof exhaust cap is not blocked or
decreased by other roof mounted features such as a
luggage carrier, an air conditioner, a solar panel, etc.
- If the design of the vehicle allows, install the roof exhaust
vent [12] directly above refrigerator cooling system (See
Art01597 and Art01596).
- Align the roof exhaust vent above the lower intake vent.
- Install a baffle [13] to prevent stagnant hot air in the
area [14] above the refrigerator.