Dometic Q3 - Maintenance and Specifications; Component Maintenance; System Specifications and Inputs

Condensate Drains Q3 and Qht Controls for Chilled Water Systems
16 L-2962 ENGLISH
MAINTENANCE OF SYSTEM COMPONENTS
CONDENSATE DRAINS
At least once every three months, check the condensate drains for obstructions by pouring a quart of water rapidly into the
condensate pan. If it does not drain completely within 30 seconds, check the drain outlets for clogging. Remember that many air
conditioning units have two drains and hoses, one at each end of the drain pan.
RETURN-AIR FILTER
Check the return-air filter about once a month and replace or clean as necessary. To clean the filter, remove it from the unit,
rinse with water, air dry and reinstall.
SPECIFICATIONS
OPERATIONAL
Set Point Operating Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°F to 99°F (12.8°C to 37.2°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .± 2°F @ 77°F (±1.1°C @ 25°C)
Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 through 240 VAC
Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 or 60 Hz
Fan Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Amps @ 115 VAC/230 VAC
Valve Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Amps @ 115/230 VAC
Heater Output (connected to Compressor output) . . . . . . . . . . . . . . . 30 Amps @ 115 VAC/230 VAC
Minimum Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°F (-17.8°C)
Maximum Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180°F (82.2°C)
Maximum RH Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99% Non Condensing
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Less Than 5 Watts
DIMENSIONS
Q3 Display Panel . . . . . . . . . . . . . . . . . . . . . . .3.50” (89mm) W x 2.53" (65mm) H x 0.75” (19mm) D
Qht Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.84” (123mm) W x 3.27" (83mm) H
Qht Panel Cut Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7/16" (88mm) W x 2-1/8" (54mm) H
Q3 Panel Cut Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1" (26mm) round hole
CABLE LENGTHS
Display Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15' (4.6m) Typical
Ambient Air Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7' (2.1m) Standard
Outside Air Sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75' (22.9m) Maximum
All custom display-cable lengths supplied in standard 5' (1.5m) increments . . 75' (22.9m) Maximum
SYSTEM INPUTS
Ambient or Inside-Air Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Water-Inlet Temperature Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Water-Outlet Temperature Sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Outside Air Temperature Sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Humidity Sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
NOTE
Maximum length of display and sensor cables is 75 feet (22.9m).