Qmark RV16 - Attic Ventilators User Manual
Page 3
AUTOMATIC TEMPERATURE CONTROL
WIRING DIAGRAM
WIRING
8.
Wiring of the unit is done inside the attic. The outlet box can be screwed or nailed to a rafter by
mounting bracket provided. If nailed, remove thermostat from box before nailing to avoid damage.
Connections to existing circuit must conform to local electrical code regulation. See Fig. 4.
9.
The thermostat has an adjustable range from 60 to 120 degrees. It operates on a 15 degree differ-
ential. For example, the factory setting is 100 degrees. At this setting, as soon as the temperature
reaches 115 degrees, the thermostat will close and start the ventilator. When the temperature has
been reduced to 100 degrees, the thermostat will open and the ventilator will stop. The dial pointer
may be set at the temperature that is best for local conditions. REMEMBER THE 15 DEGREE DIF-
FERENTIAL. If the dial pointer is set on 120 degrees, the ventilator will start at 135 degrees and
operate until the temperature has been reduced to 120 degrees . . . . a difference of 15 degrees.
ATTIC INTAKE AREA
Sufficient intake area must be provided in the attic to assure that the fan will not be overloaded and that it
will deliver its rated CFM. This can be accomplished with some type of attic venting such as gable louvers
or under-eave vents. The table below shows the minimum intake area needed for each fan installed.
MINIMUM ATTIC INTAKE AREA REQUIRED
(All Areas Are In Square Feet)
UNRESTRICTED*
WOOD LOUVER*
METAL LOUVER*
OPENING REQD.
OPENING REQD.
OPENING REQD.
RV 16 3
6.75
5.25
PRV16 2.4
5.4
4.2
*The values given are for openings covered with 1/2” hardware cloth or large mesh expanded metal. If no
screen is used, reduce values shown by 20%. If fly screen is used, double the values shown.
DIMENSIONS
TO FAN
MOTOR
THERMOSTAT AND
JUNCTION BOX ASSEMBLY
120V. 60 HZ.
SUPPLY
WHITE
GROUND
BLACK
FIG. 4
FIG. 5
26” DIA.
16
3
⁄
4
” DIA.
27” SQUARE
3” HIGH VENTURI
6
1
⁄
2
”
2”