Thetford 2117 Series Installation Manual - Manual (Page 12)

Installation Manual 12
Install an Air Deflector (optional)
If the floor plan has the refrigerator on the rear wall of the vehicle,
obey all of the vent installation as written in the “Install the Lower
and Upper Vents” section of this manual. Install the roof exhaust
vent so that:
- The sloped end of the roof exhaust vent is toward either side
of the vehicle.
- The roof exhaust vent is perpendicular to the air flow over the
vehicle.
Install an air deflector on the roof of the vehicle between the roof
exhaust vent and the front of the vehicle (See Art01767).
- Make sure that the air deflector [175] is between the roof
exhaust vent [24] and the front of the vehicle [179].
- Make sure that the air deflector is at least 3 1/2 inches high [176].
- Make sure that the overall width [177] of the air deflector is 32 7/8
- Make sure that the distance between the air deflector and the roof exhaust vent is between 2 and 3 inches [178].
179
175
24
176
177
178
Art01767
If the enclosure depth is 26 inches or more (See Art01807):
- Install a wood, aluminum or galvanized steel top baffle [13]
between the top of the refrigerator and the top of the upper
exhaust vent [24].
- Make sure that the top baffle is less than 1/4 inch [15] from
the top of the refrigerator and that the baffle overlaps the
refrigerator 1 inch or less.
- Make sure that the baffle is against the wall of the vehicle at
the top of the upper exhaust vent and less than 1/4 inch [15]
above the opening for the upper exhaust vent.
- Install a solid box baffle [21] between the lower intake vent and
the upper exhaust vent.
- Make the solid box baffle either from wood or from an
aluminum or galvanized-steel sheet.
- 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].
- Make sure that the back of the solid box baffle is perpendicu-
lar to the bottom of the enclosure.
- Make sure that the horizontal top of the solid box baffle is
even with the bottom edge of the upper exhaust vent [24].
- Make sure that the vertical top edge of the solid box baffle is
1/2 inch or less [170] below and 1/4 inch or less behind [15]
the lower rear corner of the condenser [11].
Art01807
27
15
13
15
170 24
21
25
9
11
18
17